4.0 Environmental Impacts 

This chapter presents discussions of the environmental impacts associated with the Proposed Action and the 

alternatives presented in Chapter 2.0. Disturbance comparisons for these alternatives are presented in 

Table 2.10-1, thus providing the reviewers and the decision maker a side-by-side comparison of the potential 

alternatives for each key resource topic. Analysis of environmental impacts in this chapter is confined to that 

associated with new disturbances for each alternative. To estimate the total impacts for each action 

alternative, the impacts for the No Action Alternative must be added to the impacts for each alternative. Many 

of the effects identified as a result of oil and gas development occurring under the No Action Alternative also 

would occur under expanded oil and gas activities associated with implementation of the Proposed Action or 

other action alternatives. Differences among the action alternatives generally would be in the degree or level of 

effects. Expansion of the existing oil and gas field would create effects that overlap or combine with those 

occurring under the No Action Alternative. These effects are analyzed in detail in Chapter 5.0, Cumulative 

Effects. 

It should be noted that final well siting and associated site-specific effects would be determined in detail during 

the APD phase of the permitting process. Under this process, each well would undergo additional biological, 

cultural, and paleontological evaluation prior to construction, as directed by the BLM (Section 2.3, 

Management Common to All Alternatives). Additional site-specific mitigation requirements also may be added 

at that time. The environmental impacts identified in this EIS are based on general well locations as discussed 

in Chapter 2.0 of this document. 

Planned natural gas developments in the GNBPA under the No Action Alternative are described in previously 

approved NEPA documents identified in Section 2.4.1. As of October 2007, there were 1,102 undrilled wells 

within the GNBPA that have been described in approved NEPA decision documents or identified in the 

UDOGM database. As of October 2007, UDOGM data indicated that 584 federal wells, 192 State of Utah 

wells, 9 wells on Indian lands, and 9 wells on private lands had approved APDs or were actively drilling within 

the GNBPA.

DEIS 4-1 July 2010
4.1 Air Quality 

The purpose of the air quality analysis was to assess local and regional air quality impacts from current and 

future reasonably foreseeable development in the Uinta Basin Region, in conjunction with the proposed 

project. The general approach was to develop an emissions inventory for a “project base year” (defined below) 

to tabulate emissions and conduct modeling. 

The air quality analysis incorporated the planned development and a prepared set of emissions data for project 

modeling, including project development alternatives and reasonably foreseeable development as discussed 

below. Those emissions data were incorporated into the modeling system for the project base year, and used 

to predict potential impacts on visibility, acid deposition, and air quality, including ozone. The analysis identifies 

potential impacts on resources evaluated, and characterizes the major source or source groups that contribute 

to those impacts. 

The 2006 emissions data was used as the basis for comparing emissions and impacts for the base year. This 

selection was made to coincide with the 2006 Western Regional Air Partnership (WRAP) Phase III emissions 

inventory for the Uinta and Piceance basins, which was developed by a collection of government and industry 

stakeholders for ozone modeling in the same area. As such, these data serve as the best available data for 

base year emissions and comparisons. 

Emissions of criteria pollutants and source characteristics for the proposed project alternatives were based on 

project data provided by KMG. To support the modeling effort, emissions scenarios were developed for the 

base year and 3 forecast years and included reasonably foreseeable development, the proposed project, and 

maximum production. Emissions inventories were developed for each of the following scenarios: 

• 2006 Baseline – 2006 base year actual emissions; 

• 2018 Projected Baseline – 2018 projected emissions without the proposed project; 

• 2017 Proposed Action Alternative – 2018 Projected Baseline emissions with project emissions from 

the proposed alternative in 2017; and 

• 2026 Optimal Recovery Alternative – 2018 Projected Baseline emissions with project emissions from 

the maximum recovery development alternative in 2026. 

The 2018 Projected Baseline essentially is the No Action Alternative, but also includes non-project emissions. 

The Resource Protection Alternative focuses on minimizing land disturbance for the installation and operation 

of wells and other support facilities. From an air emissions perspective, ambient impacts from the Resource 

Protection Alternative are well-characterized by the impacts from the Proposed Action. For that reason, the 

Resource Protection Alternative was not modeled as a separate evaluation. 

The 2018 Projected Baseline was used as the baseline for the Optimal Recovery Alternative, though peak 

production under this alternative is anticipated in 2026. This approach provides a consistent basis of 

comparison between the alternatives and reduces uncertainty in baseline emissions from projecting 

development beyond the WRAP inventory time horizon. 

GHGs are produced and emitted by various sources during phases of oil and gas exploration, well 

development, and production. The primary sources of GHGs associated with oil and gas exploration and 

production are CO2, N2O, and CH4. In addition, volatile organic compounds (VOCs) are a typical source of 

emissions associated with oil and gas exploration and production. Under specific environmental conditions, 

N2O and VOCs form ozone, which also is considered a GHG. 

Climate change analyses are comprised of several factors including, but not limited to, GHGs, land use 

management practices, and the albedo effect. While emissions from oil and gas activities may contribute to the 

effects of climate change to some extent, it currently is not possible to associate any of these particular actions 

DEIS 4-2 July 2010
with the creation of any specific climate-related environmental effects. The tools necessary to quantify climatic 

impacts presently are unavailable. As a consequence, impact assessment of specific effects of anthropogenic 

activities cannot be determined. Additionally, specific levels of significance have not yet been established. 

Therefore, climate change analysis for the purpose of this document is limited to accounting and disclosing of 

GHG emissions that may contribute to climate change. 

Emissions Data Development 

Emissions data for the Proposed Action and the Optimal Recovery Alternative were developed from available 

emission factors, analytical data, applicable ACEPMs, applicant-provided equipment specifications, and 

anticipated activity levels. Emission rates were developed for the criteria pollutants and for selected HAPs. A 

summary of criteria pollutant emissions from stationary sources in the Uinta Basin is provided in Table 4.1-1, 

and the project-related increases in the major components of HAPs for the Proposed Action and Optimal 

Recovery Alternative are provided in Table 4.1-2. Emissions for a full list of HAPs were reviewed, but only 

those with the greatest emissions in relation to health effects were evaluated. A summary of emission 

calculation methods for each source type and pollutant is shown in Table 4.1-3. 

Table 4.1-1 Summary of Criteria Pollutant Emissions for Each Scenario

Criteria

Pollutant

Emissions (tpy)

2006 

Baseline

2018 Projected

Baseline

2017 Proposed Action

2026 Optimal Recovery

Alternative 

Project Total Project Total 

NOX 10,754 10,138 2,071 12,209 4,946 15,084

CO 7,800 9,732 1,155 10,887 2,994 12,726

SO2 391 30 25 55 78 108

PM10 592 565 973 1,538 2,658 3,223

VOC 70,226 184,262 6,654 190,916 24,976 209,238

Source: Air Quality Technical Support Document (Appendix G). 

Table 4.1-2 Summary of Potential Increases in Emissions of HAPs for Project-related Alternatives

Pollutant

Potential HAP Increase (tpy)

Proposed Action Alternative Optimal Recovery Alternative 

Benzene 67.3 255.2

Toluene 173.6 662.1

Ethyl Benzene 12.7 48.5

Xylenes 186.9 714.1

Formaldehyde 70.4 156.5

n-Hexane 196.3 748.5

Source: Air Quality Technical Support Document (Appendix G). 

DEIS 4-3 July 2010
Table 4.1-3 Summary of Emissions Calculation Methods by Source Type and Pollutant

Source Type Pollutant Emissions Calculation Methodology

Drill Rig Engines NOX Tier 4 (40 CFR 1039.101)

CO

VOC 

PM/PM10/PM2.5

SO2 Mass balance of fuel sulfur (15 ppm weight [ppmw] fuel sulfur)

HAP National Mobile Inventory Model Database (USEPA 2005) 

Drill Rig Boilers All USEPA AP-42 Volume I: Stationary Sources Chapter 1.3 (USEPA 1998a) 

Drilling and Completion

Traffic 

NOX USEPA AP-42 Volume II: Mobile Sources (USEPA 1995a) 

CO

VOC 

PM10/PM2.5 USEPA AP-42 Volume I Chapter 13.2.2 (USEPA 2006) and USEPA AP-42 

Volume II: Mobile Sources (USEPA 1995a) 

SO2 USEPA AP-42 Volume II: Mobile Sources (USEPA 1995a) 

Condensate Flashing VOC American Petroleum Institute (API) E&P Tanks v2.0 based on Analysis of

HAP Condensate 

Separator Heaters NOX USEPA AP-42 Volume I: Stationary Sources Chapter 1.4 (USEPA 1998b) 

CO

VOC 

PM/PM10/PM2.5

SO2 Mass balance of fuel sulfur [20 ppmw fuel sulfur]

HAP USEPA AP-42 Volume I: Stationary Sources Chapter 1.4 (USEPA 1998b) 

Production Well

Fugitives 

VOC USEPA Protocol for Equipment Leak Estimates (USEPA 1995b) 

HAP Mass fraction of VOC based on Analysis of Condensate 

Production Traffic NOX USEPA AP-42 Volume II: Mobile Sources (USEPA 1995a) 

CO

VOC 

PM10/PM2.5 USEPA AP-42 Volume I Chapter 13.2.2 (USEPA 2006) and 

USEPA AP-42 Volume II: Mobile Sources (USEPA 1995a) 

SO2 USEPA AP-42 Volume II: Mobile Sources (USEPA 1995a) 

Produced Water Tank 

Batteries

VOC TANKS 4.09 based on Analysis of Condensate 

HAP Mass Fraction of VOC based on Analysis of Condensate 

Gas-fired Compression

Engines 

NOX Engine Manufacturer Specifications

CO

VOC 

PM10/PM2.5 USEPA AP-42 Volume I: Stationary Sources Chapter 3.2 (USEPA 2000) 

SO2 Mass balance of fuel sulfur [20 ppmw fuel sulfur]

HAP USEPA AP-42 Volume I: Stationary Sources Chapter 3.2 (USEPA 2000) 

Source: Air Quality Technical Support Document (Appendix G). 

The air quality model AERMOD was used to evaluate impacts on air quality in the near-field. Several 

scenarios, including various well spacing and drill density plans, were evaluated to determine their projected 

impacts on the near-field. A square mile area was used to characterize the scenario sources arrangement, and 

DEIS 4-4 July 2010
impacts were calculated within that area and at the boundary of the square mile area. For drilling operations, it 

was assumed that one drill rig would operate in this area at any one time, and up to 5 separate drill rigs would 

operate on an annual basis. For operations, the source arrangement depicted wells located on a 10-, 20-, and 

40-acre spacing. For compression, a single compressor station was sited in the area and impacts were 

calculated in the near-field. 

The CALPUFF modeling system was used to estimate impacts on visibility (regional haze), air quality, and acid 

deposition in areas 50 kilometers (km) or more from the development area. The Models-3 Community 

Multiscale Air Quality (CMAQ) model was used to evaluate impacts on ambient air ozone in the region. 

An inventory of actual emissions developed specifically for this analysis were input to the AERMOD and 

CALPUFF models to analyze compliance with the NAAQS and evaluate impacts to regional haze, acid 

deposition, and acid neutralizing capacity at sensitive lakes in Class I areas. Comparison of impacts to PSD 

increments is provided for informational purposes only; this study does not represent a PSD 

increment-consumption analysis. The inventory for the CMAQ ozone modeling utilized actual project base year 

emissions along with emissions from other sources (i.e., electric generation, motor vehicles, and biogenics). 

The CAA lists HAPs that could be emitted during project operations: primarily BTEX (benzene, toluene, ethyl 

benzene, and xylene) from the well dehydrators and formaldehyde from the pipeline compressor engines. 

Control of these and other HAPs would be achieved through compliance with applicable MACT standards. 

HAP emissions for each activity were developed on a per unit basis and were based on approved emissions 

factors, mass balance, or process simulation, where appropriate. Site-specific supporting information such as 

operation schedules, equipment specification, and physical and chemical properties of fuel and materials were 

used to develop the emissions inventory for the various alternatives. Where site-specific information was not 

available, the analysis used published references or assumptions based on professional experience as 

described in the Technical Support Document (Appendix G). 

NESHAP and MACT regulations for oil and natural gas production facilities include provisions for ethylene 

glycol dehydrators and vents, storage vessels with flash emissions, and ancillary equipment. Under these 

provisions, any source that emits or has the potential to emit 10 tpy or more of any HAP is considered a major 

source; would require an operating permit under Title V of the CAA; and must install and operate control 

equipment to control air emissions. Under these same provisions, glycol dehydration units emitting less than 

1 tpy benzene are considered “small,” and would not require controls under MACT rules. 

Based on the minimal content of hydrogen sulfide (H2S) in the natural gas found in the GNBPA, potential H2S 

impacts would be negligible. However, should H2S be encountered, operations on federal or Indian leases 

would be regulated by Onshore Oil and Gas Order No. 6 (Hydrogen Sulfide Operations). This order requires 

monitoring of H2S beginning at levels of 10 ppm at each drilling well (40 CFR part 63, subpart HH 

§63.760[b][1] through [4]; and 40 CFR part 63, subpart A of the General Provisions, effective June 17, 1999). 

Should H2S levels increase, specific drilling and production equipment, along with drilling and public protection 

plans, would be required. 

The analysis was based on several conservative assumptions, including: 

• Maximum measured and/or estimated background criteria air pollutant concentrations were assumed 

to occur at all locations in the region throughout the life of the project. 

• All existing emissions sources were assumed to operate at their reasonably foreseeable emission 

rates simultaneously throughout the life of the project. Given the number of sources included in this 

analysis, the probability of such a scenario actually occurring over an entire year (or even 24 hours) is 

small. While this assumption is typically used in modeling analyses, the resulting predicted impacts 

would be overstated. 

DEIS 4-5 July 2010
• For the near-field modeling, total predicted short-term air pollutant impact concentrations were 

assumed to be the sum of the first maximum background concentration, plus the maximum modeled 

concentrations, which actually would occur under very different meteorological conditions and would 

not be likely to coincide. 

• The HAP analyses assumed all existing equipment would continue to operate simultaneously at the 

assumed emission levels continuously throughout the life of the project. 

4.1.1 No Action Alternative 

On BLM-administered lands, current management plans would continue to guide oil and natural gas 

exploration and development activity. Air quality effects for the No Action Alternative would include an increase 

in air pollutant emissions resulting from drill and development projects previously approved. 

Emissions for the No Action Alternative are represented by the 2018 Projected Baseline, specifically including 

the WRAP III data for the Uinta and Piceance basins, and the WRAP II data for other basins. 

4.1.1.1 Impacts on Air Quality 

The USEPA dispersion model AERMOD was used to predict maximum potential near-field air quality impacts 

from existing emission sources, which would continue to operate under the No Action Alternative. As of 

October 2007, there were 1,102 undrilled wells within the GNBPA that have been described in approved 

NEPA decision documents or identified in the UDOGM database. The analysis results identify predicted air 

pollutant concentrations in the vicinity of existing wells and compressor engines. 

CALPUFF modeling was used to predict impacts at distant (greater than 50 km from the GNBPA), mandatory 

federal PSD Class I areas for comparison with applicable air quality standards, PSD increments, HAP 

exposures, visibility standards, and atmospheric deposition (Appendix G). 

Since this alternative includes wells that have not yet been drilled, there would be construction-related air 

quality impacts. Construction emissions would occur during road and well pad construction, well drilling, and 

well completion testing. In addition, particulate matter (PM2.5 and PM10) concentrations likely would increase 

during construction. Potential SO2 emissions would be generated by drilling rigs and other diesel engines used 

during rig-up, drilling, and completion operations (sulfur being a trace element in diesel fuel). Maximum air 

pollutant emissions from each well would be temporary (i.e., occurring only during the construction period), 

would occur in isolation, and would not significantly interact with adjacent well locations. Since construction 

emissions would be temporary, PSD increments are not applicable. 

The maximum impacts in the near-field are presented in Table 4.1-4. When added to an assumed background 

concentration, the total ambient air quality impacts under the No Action Alternative are as shown and are all 

below the relevant ambient air quality standards. 

Table 4.1-4 Air Quality Impacts for Criteria Air Pollutants in the Near-field, No Action Alternative

Pollutant Standard 

Modeled Impact 

(μg/m3

) 

Background 

Concentration 

(μg/m3

) 

Total Impact 

(μg/m3) 

NAAQS / 

SAAQS 

(μg/m3

) 

NO2 Annual 2.5 13.2 15.7 100 

CO 1-hour 270 6,325 6,595 40,000

8-hour 178 3,910 4,088 10,000

SO2 3-hour 0.85 18.34 19.19 1,300 

24-hour 0.39 10.48 10.87 365

Annual 0.05 2.62 2.67 80

DEIS 4-6 July 2010
Table 4.1-4 Air Quality Impacts for Criteria Air Pollutants in the Near-field, No Action Alternative

Pollutant Standard 

Modeled Impact 

(μg/m3

) 

Background 

Concentration 

(μg/m3

) 

Total Impact 

(μg/m3) 

NAAQS / 

SAAQS 

(μg/m3

) 

PM10 24-hour 2.87 18 20.87 150 

PM2.5 24-hour 2.87 27 29.87 35 

Annual 0.34 7 7.34 15

4-7

Source: Air Quality Technical Support Document (Appendix G). 

4.1.1.2 Impacts at Class I and II Areas – Acid Deposition 

The CALPUFF model system post-processor, CALPOST, provided acid deposition results for nitrate and 

sulfate deposition at Class I and sensitive Class II areas, which were then used to analyze impacts to the acid 

neutralizing capacity of selected sensitive lakes in the modeling domain. Modeled deposition values from the 

No Action Alternative, which consists of non-project emission sources including other oil and gas projects, 

were shown to contribute 4.955 kilograms per hectare-year (kg/ha-year) for nitrogen at Mesa Verde National 

Park. This is above the USFS-established comparative deposition value of 3 kg/ha-year. 

The maximum acid deposition rate at the listed Class II areas in the region is predicted at the Holy Cross 

Wilderness Area. The maximum deposition from the No Action Alternative would be 2.602 kg/ha-year of 

nitrogen. 

4.1.1.3 Impacts at Class I and II Areas – Visibility 

The CALPUFF model system was used to evaluate impacts on visibility at the Class I areas and at the listed 

sensitive Class II areas. The results of the CALPUFF analysis showed that existing, approved, and proposed 

emissions sources that constitute the No Action Alternative would have recognizable visibility impacts greater 

than 10 percent increase in the light extinction coefficient (1.0 dv; eighth highest, Method 6) at listed Class I 

areas. All Class I areas in the region would be impacted for more than 223 days a year at the 1.0-dv level. At 

Arches National Park, the non-project related sources would contribute to visibility impacts greater than the 

1.0 dv threshold for 311 days a year. 

The CALPUFF modeling indicated that the No Action Alternative emissions would cause impacts at the 1.0-dv 

level for at least 201 days a year at the Class II areas. However, the FLM guidance provides no visibility 

threshold of concern for Class II areas. 

4.1.1.4 Impacts on Ambient Ozone Levels 

The CMAQ modeling system was used to estimate impacts on ambient air ozone levels from the emissions for 

2006, representative of the base year operations. Results from that modeling effort were compared to actual 

monitored levels in the region (though not directly in the GNBPA). A formal Model Performance Evaluation 

(MPE) was conducted for 2006, which was used to evaluate the performance of the model with actual 

conditions, and to provide an adjustment of modeled impacts for future development scenarios. The MPE 

showed that the modeling system meets the USEPA-established criteria for acceptable model accuracy and 

error statistics at the existing monitoring stations within the modeling domain. Although there are no statistically 

valid representative monitoring data that can be used to compare baseline modeled impacts to actual levels in 

the GNBPA, data from a monitoring station near Vernal suggests that current ozone levels are within air quality 

standards. The lack of concurrent data prevents validation and calibration of the model results; however, the 

model does provide a means to compare the relative change in ambient ozone concentration between the 

project alternatives and baseline air quality. 

DEIS July 2010
The CMAQ modeling system was used to model impacts for 2018 for the projected No Action Alternative, the 

Proposed Action, and the Optimal Recovery Alternative. The results were used to show the expected change 

in ozone levels at receptors in the region resulting from each of the alternatives as well as the cumulative 

impact from expected development. The model results showed no impacts above the current ozone standard 

of 75 ppb for the fourth highest annual level in the Uinta Basin for the No Action Alternative. 

4.1.1.5 Summary of GHG Emissions 

GHG were estimated using the Compendium of Greenhouse Gas Emissions Methodologies for the Oil and 

Gas Industry (API 2004) as implemented using the SANGEATM software tool published by the API. The 

SANGEATM software tool is an ExcelTM macro that uses the calculation methodologies described in the 

Compendium to calculate GHG emissions using a series of modules for different source types. These modules 

determine the emissions of CO2, CH4, and N2O as well as the global warming potential (GWP) in CO2e based 

on the comparative GWP of each GHG species. For this analysis, the default GWP coefficients for CH4 (21) 

and N2O (310) were used. These coefficients were multiplied by the calculated mass emission rate to 

determine the GWP. 

Indirect GHG emissions include additional emissions that occur upstream of the project as a direct result of the 

increased activity resulting from the proposed alternatives. Additional annual electricity use for all project 

alternatives would increase significantly due to the installation of electric compression engines. Total annual 

electricity consumption was based on additional electric compression. Emission factors for GHG from 

electricity production vary by region since the means of power production and fuel characteristics vary by 

region. GHG emissions for electricity consumption for this analysis were based on the Utah-produced factors 

as provided in SANGEATM. Detailed emission rates by source and pollutant type are provided in Table 4.1-5. 

Table 4.1-5 Detailed Summary of Annual GHG Emissions by Source for the No Action Alternative

Source CO2 CH4 N2O CH4 (CO2e) N2O (CO2e) CO2e 

Stationary Combustion 462,999 9 8.5 186 2,623 465,808 

Mobile Combustion 106,744 15 10.5 322 3,261 110,357 

Flare 239 0 0.005 5 1 246 

Flashing 0 1,463 0 30,730 0 30,730 

Fugitive 0 6,056 0 127,182 0 127,182 

Indirect Emission 990,719 7 15.6 144 4,891 995,754 

Venting 12 1,473 0 30,926 0 30,938 

Total (tonne CO2e) 1,560,774 9,024 34.8 189,496 10,777 1,761,016 

Source: Air Quality Technical Support Document (Appendix G). 

4.1.2 Proposed Action Alternative 

4.1.2.1 Impacts on Air Quality 

Construction emissions would occur during road and well pad construction, well drilling, and well completion 

testing. Potential SO2 emissions would be generated by drilling rigs and other diesel engines used during rigup, drilling, and completion operations (sulfur being a trace element in diesel fuel). Maximum air pollutant 

emissions from each well would be temporary (i.e., occurring only during the construction period), would occur 

in isolation, and would not significantly interact with adjacent well locations. Since construction emissions 

would be temporary, PSD increments are not applicable. 

The highest near-field impacts for the Proposed Action would occur during drilling and completion activities 

and would be the same as the near-field impacts for the No Action Alternative (Table 4.1-4). The AERMOD 

DEIS 4-8 July 2010
DEIS 4-9 July 2010

modeling to assess near-field impacts used the same hypothetical drilling and production arrangement for all 

scenarios. Therefore, near-field impacts are the same, regardless of scenario. 

The regulated HAPs listed in Section 112 of the CAA that contribute the highest levels of emissions for the 

proposed project are benzene, toluene, ethylbenzene, xylenes, formaldehyde, and n-hexane. Emissions of the 

remaining HAPs are orders of magnitude smaller. Increases in HAPs due to the Proposed Action Alternative 

are shown in Table 4.1-2. 

4.1.2.2 Impacts at Class I and II Areas – Acid Deposition 

The CALPUFF model system post-processor, CALPOST, provided acid deposition results for sulfate and 

nitrate deposition on the Class I and sensitive Class II areas, which were then used to analyze impacts to the 

acid neutralizing capacity of selected sensitive lakes in the modeling domain. Table 4.1-6 shows the acid 

deposition under the Proposed Action for Class I areas with maximum added deposition from the 

project-related sources; Mesa Verde National Park, which has the highest non-project-related deposition; and 

the two Class II areas analyzed that had the highest impacts (Dinosaur National Monument and Flaming 

Gorge National Recreation Area). Impacts for all areas analyzed are provided in Appendix G. The highest 

impact at Class I areas under the Proposed Action would be at the Flat Tops Wilderness Area. The 

incremental impacts for the Proposed Action sources would be below the FLAG deposition analysis thresholds 

(0.005 for nitrate and 0.01 for sulfate), or do not contribute to any deposition values higher than the 

USFS-established comparative deposition values (3 and 5 kg/ha-year for nitrate and sulfate, respectively). 

Table 4.1-6 CALPUFF Modeled Results for Acid Deposition, Proposed Action 

Area Pollutant 

Maximum Modeled Deposition

Comparative

Deposition Value

(kg/ha-year)

All Sources (Project 

+ Non-Project)

(kg/ha-year)

Project Sources

(kg/ha-year)

Non-Project 

Sources

(kg/ha-year)

Class I Areas

Arches National Park Nitrogen 0.325 0.0010 0.324 3 

Sulfur 0.185 0.00004 0.185 5 

Mesa Verde National Park Nitrogen 4.956 0.0002 4.955 3 

Sulfur 0.646 0.00001 0.646 5 

Eagles Nest Wilderness Area Nitrogen 0.809 0.0011 0.808 3 

Sulfur 0.238 0.00004 0.238 5 

Flat Tops Wilderness Area Nitrogen 0.267 0.0016 0.266 3 

Sulfur 0.146 0.0001 0.146 5 

Mount Zirkel Wilderness Area Nitrogen 0.645 0.0012 0.643 3 

Sulfur 0.304 0.00004 0.304 5 

Class II Areas

Dinosaur National Monument Nitrogen 0.695 0.0296 0.665 3 

Sulfur 0.204 0.0009 0.203 5 

Flaming Gorge National Recreation Nitrogen 1.429 0.0619 1.429 3 

Area Sulfur 0.852 0.0017 0.852 5 

Source: Air Quality Technical Support Document (Appendix G). 

4.1.2.3 Impacts at Class I and II Areas – Visibility 

The CALPUFF model system was used to evaluate impacts on visibility at the Class I areas and at the listed 

sensitive Class II areas. Table 4.1-7 provides results of the CALPUFF visibility analysis for the Proposed 

Action for both Class I and Class II areas. Only the areas with the highest impacts in each group are presented 

on this table; impacts for all areas analyzed are provided in Appendix G. These data were developed from the 
Table 4.1-7 CALPUFF Modeled Results for Regional Haze, Proposed Action 

All Sources (Project + Non-Project) Project Sources Non-

Area 

Days > than MAX% 

Δ

Bext

8th Highest 

% 

Δ Bext

Days > than MAX% 

Δ

Bext

8th Highest 

% 

Δ Bext

Days > than 

5% 

Δ Bext 10% 

Δ Bext 5% 

Δ Bext 10% 

Δ Bext 5% 

Δ Bext 10% 

Δ 

Class I Areas Arches National Park 359 311 118.47 82.29 0 0 2.56 1.30 359 31Canyonlands National Park 328 236 106.52 68.85 0 0 1.98 1.12 328 23Flat Tops Wilderness Area 365 348 55.02 45.70 0 0 1.86 1.01 365 34Class II AreasDinosaur National Monument 365 364 166.24 131.74 73 32 30.54 16.60 365 36Flaming Gorge National Recreation Area 

365 365 280.99 240.99 150 102 41.89 32.57 365 36

Source: Air Quality Technical Support Document (Appendix G). DEIS 4-10 
Method 6 approach using annual average background visibility conditions. The results showed that there are 

no days with a contribution to visibility impacts greater than 10 percent in extinction at listed Class I areas, 

indicating that the Proposed Action would not contribute to an impact on visibility at these sites. 

The modeling results at the listed sensitive Class II areas showed project-related impacts above 1.0 dv (eighth 

highest, Method 6) at Dinosaur National Monument and Flaming Gorge National Recreation Area. The results 

predicted 102 days greater than 1.0 dv at Flaming Gorge and 32 days greater than 1.0 dv at Dinosaur National 

Monument. Modeled results for all other Class II areas showed that impacts would be less than 1.0 dv using 

Method 6. 

4.1.2.4 Impacts on Ambient Ozone Levels 

Impacts on ambient air ozone were evaluated using the CMAQ model system. As noted above, the modeling 

system meets the USEPA-established criteria for acceptable model accuracy and error statistics at the existing 

monitoring stations in the region. However, there is no recent or representative monitoring data that can be 

used to compare to impacts in the GNBPA. Increases in the fourth-highest ozone levels above baseline were 

modeled at 2.4 ppb for the Proposed Action Alternative. No ozone concentrations in excess of the 75 ppb 

standard were modeled in the GNBPA. 

4.1.2.5 Summary of GHG Emissions 

For the Proposed Action, GHG emissions were estimated in the same manner as the No Action Alternative. 

Indirect GHG emissions include additional emissions that occur at other locations as a direct result of the 

increased activity resulting from the project. Annual electricity use would increase due to the installation of 

electric compression drivers. Total annual electricity consumption was based on additional electrical 

compression planned for the proposed project. Emission factors for GHG from electricity production vary by 

region since the means of power production and fuel characteristics vary by region. GHG emissions for 

electricity production and consumption were based on the Utah-produced factors as provided in SANGEATM. 

Table 4.1-8 provides a summary of GHG emissions for the Proposed Action. 

Table 4.1-8 Detailed Summary of GHG Emissions by Source for the Proposed Action Alternative

Source CO2 CH4 N2O CH4 (CO2e) N2O (CO2e) CO2e 

Stationary Combustion 855,690 16 15.6 344 4,847 860,880 

Mobile Combustion 197,377 28 19.1 581 5,915 203,873 

Flare 753 1 0.01 17 5 775

Flashing 0 4,245 0 89,142 0 89,142

Fugitive 0 17,142 0 359,973 0 359,973

Indirect Emission 1,177,611 8 18.8 171 5,814 1,183,596 

Venting 21 2,662 0 55,907 0 55,928

Total (tonne CO2e) 2,231,452 24,102 53.5 506,135 16,580 2,754,167 

Source: Air Quality Technical Support Document (Appendix G). 

4.1.2.6 Mitigation and Mitigation Effectiveness 

Since the Proposed Action would comply with air quality standards, specification of monitoring or mitigation 

measures is not necessary. However, the BLM would implement an adaptive management strategy to ensure 

that this project would result in the continued attainment of the NAAQS and not contribute to ozone 

exceedances. Within 1 year of the signing of the ROD, and as needed thereafter, the BLM and KMG, with 

input from USEPA would refine the NOX and VOC emissions inventory for the project based upon actual and 

projected levels of development. The results of this emission inventory would be publicly available. 

DEIS 4-11 July 2010
In the event an updated emission inventory shows a significant increase in NOX, VOCs, or other ozone 

precursors relative to the levels predicted in the EIS, then a new modeling analysis would be conducted 

utilizing the new inventory and monitoring data. The new modeling analysis would be performed in 

consultation with appropriate federal, Tribal, and state stakeholders. The model would consider the current 

operating practices, operator-committed mitigation, and control technology requirements in place at the time 

the model is conducted. The BLM, in consultation with appropriate federal, Tribal, and state stakeholders, 

would evaluate the modeling results and identify any needed additional reductions in ozone precursor 

emissions. 

As soon as possible following evaluation of the modeling results, and if needed, the BLM and appropriate 

stakeholders would use their respective authorities to implement enhanced emission control strategies and/or 

operating limitations necessary to ensure continued compliance with applicable ambient air quality standards 

for ozone. Absent an effective control technology, reductions in the pace of development may be utilized to 

ensure ambient air quality standards are met. 

Potential enhanced mitigation measures include, but are not limited to: 

• Natural gas-fired drilling rig engines; 

• Fuel additives; 

• Gas turbines rather than internal combustion engines for compressors; 

• Reduction in the number of storage tanks containing VOCs; 

• Reduction in the number of drilling rigs; 

• Selective catalytic reduction on drilling rig engines; 

• Electric drilling rigs; 

• Electric compression; 

• Centralization of gathering facilities to reduce truck traffic, including the liquids gathering system; 

• Cleaner technologies on completion activities and other ancillary sources; 

• Advancements in drilling technology; and 

• Reduction in the pace of development. 

4.1.2.7 Residual Impacts 

No residual impacts to air quality from the Proposed Action would occur since reclamation and revegetation 

would stabilize exposed soil and control fugitive dust emissions. As vegetation becomes established, 

particulate levels should return to what is typical for an arid environment. Once the disturbance ceases and 

wind erodible surfaces are reclaimed, air quality would revert to its original state. 

4.1.3 Resource Protection Alternative 

4.1.3.1 Impacts on Air Quality 

Maximum potential air quality impacts from emission sources under the Resource Protection Alternative 

includes sources that would continue to operate under the No Action Alternative, and would have similar 

sources to the Proposed Action. Air quality impacts under the Resource Protection Alternative would be the 

same as impacts under the Proposed Action. 

DEIS 4-12 July 2010
4.1.3.2 Impacts at Class I and II Areas – Acid Deposition 

The CALPUFF model system post-processor, CALPOST, provided acid deposition results for nitrate and 

sulfate deposition at Class I and sensitive Class II areas, which were then used to analyze impacts to the acid 

neutralizing capacity of selected sensitive lakes in the modeling domain. Although acid deposition impacts 

were not modeled specifically for the Resource Protection Alternative, impacts from project-related sources 

would be less under the Resource Protection Alternative than for the Proposed Action Alternative. 

4.1.3.3 Impacts at Class I and II Areas – Visibility 

Although visibility impacts were not directly assessed for the Resource Protection Alternative, the CALPUFF 

model system used to evaluate impacts on visibility at the Class I areas and at the listed sensitive Class II 

areas for the Proposed Action indicated that there would be no days with a contribution to visibility impacts 

greater than 10 percent increase in the light extinction coefficient (1.0 dv) at listed Class I areas. The Resource 

Protection Alternative would contribute to impacts on visibility at the Class II areas as discussed in 

Section 4.1.2.3. 

4.1.3.4 Impacts on Ambient Ozone Levels 

Impacts on ambient air ozone levels would be the same under the Resource Protection Alternative as under 

the Proposed Action. 

4.1.3.5 Summary of GHG Emissions 

GHG emissions for the Resource Protection Alternative would be the same as the Proposed Action. 

4.1.3.6 Mitigation and Mitigation Effectiveness 

Since the Resource Protection Alternative would comply with air quality standards, specification of monitoring 

or mitigation measures is not necessary. However, the BLM would implement an adaptive management 

strategy to ensure that the proposed project remains in compliance with the NAAQS and would not contribute 

to ozone exceedances. This strategy is described in more detail in Section 4.1.2.6 under the Proposed Action. 

4.1.3.7 Residual Impacts 

No residual impacts to air quality from the Resource Protection Alternative would occur since reclamation and 

revegetation would stabilize exposed soil and control fugitive dust emissions. As vegetation becomes 

established, particulate levels should return to what is typical for an arid environment. Once the disturbance 

ceases and wind erodible surfaces are reclaimed, air quality would revert to its original state. 

4.1.4 Optimal Recovery Alternative 

4.1.4.1 Impacts on Air Quality 

Maximum potential air quality impacts from emission sources under the Optimal Recovery Alternative include 

impacts from sources that would continue to operate under the No Action Alternative. There would be more 

emissions sources under the Optimal Recovery Alternative than the Proposed Action (Table 4.1-1). 

For the Optimal Recovery Alternative, the maximum 24-hour PM10 impact at Class I areas would be 

0.24 μg/m3

 at Arches National Park, and the annual average PM10 impact would be 0.02 μg/m3. Impacts from 

SO2 and NOX emissions would be below 0.013 μg/m3

. At sensitive Class II areas, the maximum impacts would 

be at Flaming Gorge National Recreation Area for all criteria air pollutants. The maximum particulate impact on 

a 24-hour average would be 7.36 μg/m3

 and the annual PM10 impact would be 1.38 μg/m3. The maximum 

annual average NOX impact would be 0.94 μg/m3

. Impacts from all other criteria pollutants would be less than 

1.0 μg/m3

. When added to the background concentrations, all impacts from all sources would be below the 

DEIS 4-13 July 2010
DEIS 4-14 July 2010

established NAAQS for criteria pollutants. Increases in HAPs due to the Optimal Recovery Alternative are 

shown in Table 4.1-2. 

4.1.4.2 Impacts at Class I and II areas – Acid Deposition 

The CALPUFF model system post-processor, CALPOST, provided acid deposition results for sulfate and 

nitrate deposition on the Class I and sensitive Class II areas, which were then used to analyze impacts to the 

acid neutralizing capacity of selected sensitive lakes in the modeling domain. Table 4.1-9 shows the acid 

deposition under the Optimal Recovery Alternative for Class I areas with maximum added deposition from 

project-related sources; Mesa Verde National Park, which as the highest non-project-related deposition; and 

the two Class II areas analyzed that had the highest impacts (Dinosaur National Monument and Flaming 

Gorge National Recreation Area). Impacts for all areas analyzed are provided in Appendix G. The highest 

impact at Class I areas under the Optimal Recovery Alternative would be at the Flat Tops Wilderness Area. 

Impacts from sources for the Optimal Recovery Alternative would be below the FLAG deposition analysis 

thresholds (0.005 for nitrate and 0.01 for sulfate), or do not contribute to any deposition values higher than the 

USFS-established comparative deposition values (5 and 3 kg/ha-year for sulfate and nitrate, respectively). 

Table 4.1-9 CALPUFF Modeled Results for Acid Deposition, Optimal Recovery Alternative 

Maximum Modeled Deposition 

All Sources (Project Project Non-Project Comparative 

+ Non-Project) Sources Sources Deposition Value 

Area Pollutant (kg/ha-yr) (kg/ha-yr) (kg/ha-yr) (kg/ha-yr) 

Class I Areas 

Arches National Park Nitrogen 0.326 0.002 0.324 3 

Sulfur 0.185 0.0001 0.185 5 

Mesa Verde National Park Nitrogen 4.956 0.0004 4.955 3 

Sulfur 0.647 0.00003 0.646 5 

Eagles Nest Wilderness Area Nitrogen 0.810 0.002 0.808 3 

Sulfur 0.238 0.0001 0.238 5 

Flat Tops Wilderness Area Nitrogen 0.269 0.003 0.266 3 

Sulfur 0.146 0.0002 0.146 5 

Mount Zirkel Wilderness Area Nitrogen 0.646 0.002 0.643 3 

Sulfur 0.304 0.0001 0.304 5 

Class II Areas 

Dinosaur National Monument Nitrogen 0.721 0.055 0.665 3 

Sulfur 0.205 0.002 0.203 5 

Flaming Gorge National Nitrogen 1.429 0.116 1.429 3 

Recreational Area Sulfur 0.852 0.005 0.852 5 

Source: Air Quality Technical Support Document (Appendix G). 

4.1.4.3 Impacts on Visibility 

Table 4.1-10 provides results of the CALPUFF visibility analysis for the Optimal Recovery Alternative for both 

Class I and Class II areas. Only the areas with the highest impacts in each group are presented on this table; 

impacts for all areas analyzed are provided in Appendix G. These data were developed from the Method 6 

approach using annual average background visibility conditions. 

For the Optimal Recovery Alternative, there would be no impacts above 1.0 dv at any of the Class I areas. At 

Class II areas under the Optimal Recovery Alternative, the eighth highest impacts using Method 6 were above 

10 percent at Flaming Gorge National Recreation Area and Dinosaur National Monument. The results 

indicated there would be 156 days above 1.0 dv at Flaming Gorge and 71 days above 1.0 dv at Dinosaur 

National Monument. 
Table 4.1-10 CALPUFF Modeled Results for Regional Haze, Optimal Recovery Alternative

All Sources (Project + Non-Project) Project Sources Non-P

Days > than MAX% Δ

Bext

8th Highest

% Δ Bext

Days > than MAX% Δ

Bext

8th Highest

% Δ Bext

Days > than 

Area 5% Δ Bext 10% Δ Bext 5% Δ Bext 10% Δ Bext 5% Δ Bext 10% Δ B

Class I AreasArches National Park 359 311 118.47 82.72 0 0 4.99 2.51 359 311 Canyonlands National Park 328 236 106.54 68.85 0 0 3.89 2.20 328 236 Flat Tops Wilderness Area 365 349 55.34 45.81 0 0 3.59 1.97 365 348 Class II AreasDinosaur National Monument 365 364 187.10 146.42 129 71 56.77 32.72 365 363 Flaming Gorge National 

Recreation Area

365 365 306.23 256.94 198 156 83.70 62.37 365 365 

Source: Air Quality Technical Support Document (Appendix G). DEIS 4-15 
4.1.4.4 Impacts on Ambient Ozone Levels 

Impacts on ambient air ozone were evaluated using the CMAQ model system. Increases in the fourth-highest 

ozone levels were modeled at 4.9 ppb for the Optimal Recovery Alternative. Ozone concentrations were 

simulated to remain below the 75 ppb ozone standard based on the 2005 meteorological data set. The model 

results showed ozone concentration up to 79 ppb for limited areas adjacent to the GNBPA based on the 2006 

meteorological data set. The result indicates that there would be a potential to exceed the NAAQS for ozone in 

areas adjacent to the GNBPA. 

4.1.4.5 Summary of GHG Emissions 

For the Optimal Recovery Alternative, GHG emissions were estimated in the same manner as for the 

Proposed Action. Indirect GHG emissions included additional emissions that occur upstream of the project as 

a direct result of the increased activity resulting from the proposed alternatives. Additional annual electricity 

use in all project alternatives would increase due to the installation of electric compression drivers. Total 

annual electricity consumption was based on additional electric compression. Emission factors for GHG from 

electricity production vary by region since the means of power production and fuel characteristics vary by 

region. GHG emissions for electricity consumption for this analysis were based on the Utah-produced factors 

as provided in SANGEATM. Table 4.1-11 provides a summary of GHG emissions for the Optimal Recovery 

Alternative. 

Table 4.1-11 Detailed Summary of GHG Emissions by Source for the Optimal Recovery Alternative

Source CO2 CH4 N2O CH4 (CO2e) N2O (CO2e) CO2e 

Stationary Combustion 2,306,292 44 42.1 926 13,063 2,320,281 

Mobile Combustion 419,221 58 40.1 1,212 12,446 432,879 

Flare 1,456 2 0.03 33 9 1,498 

Flashing 0 13,709 0 287,883 0 287,883 

Fugitive 0 24,870 0 522,260 0 522,260 

Indirect Emission 1,792,639 12 28.5 261 8,850 1,801,750 

Venting 43 5,622 0 118,072 0 188,115 

Total (tonne CO2e) 4,519,651 44,317 110.9 930,647 34,368 5,484,666 

Source: Air Quality Technical Support Document (Appendix G). 

4.1.4.6 Mitigation and Mitigation Effectiveness 

Modeling results for the Optimal Recovery Alternative showed compliance with all ambient air quality 

standards except potential exceedances of the ozone standard at scattered locations. The projected impacts 

are up to 79 ppb, but the limitations on the model must be considered before imposing mitigation measures. 

Given the level of the predicted ozone impacts, and the fact that all other ambient air quality standards would 

be attained, specification of monitoring or mitigation measures is not proposed at this time. However, the BLM 

would implement an adaptive management strategy to ensure that the proposed project remains in compliance 

with the NAAQS and would not contribute to ozone exceedances. This strategy is described in more detail in 

Section 4.1.2.6 under the Proposed Action. 

4.1.4.7 Residual Impacts 

No residual impacts to air quality from the Optimal Recovery Alternative would occur since reclamation and 

revegetation would stabilize exposed soil and control fugitive dust emissions. As vegetation becomes 

established, particulate levels should return to what is typical for an arid environment. Once the disturbance 

ceases and wind erodible surfaces are reclaimed, air quality would revert to its original state. 

DEIS 4-16 July 2010
4.1.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Implementation of increased development activities within the GNBPA would lead to increases in fugitive dust 

and other air pollutants especially during the construction and well-drilling operations. These activities would 

impact the local and regional air quality since an increase in air pollutants would persist throughout the lifetime 

of the well field. Dispersion modeling indicated that the higher concentrations of pollutants would remain within 

the NAAQS and would not be a threat to human health or the environment. 

Development of the natural gas and oil resources also would lead to additional GHGs being emitted to the 

atmosphere that may contribute to unwanted climate change. GHGs (e.g., water, CO2, and CH4) in the 

atmosphere moderate temperature of the planet, allowing it to sustain life. As indicated in previous sections, 

there is substantial scientific evidence that increased atmospheric concentrations of GHGs and land use 

changes are contributing to an increase in average global temperature (global warming) (USEPA 2008a). 

While it is generally agreed upon that human activities are changing the composition of Earth's atmosphere, 

important scientific questions remain about how much warming will occur, how fast it will occur, and how it will 

affect the rest of the climate system (including precipitation patterns and storm intensity). Answering these 

questions will require scientific advances in a number of areas including: 

• Improving our understanding of natural climatic variations, changes in the sun’s energy, land use 

changes, the warming or cooling effect of pollutant aerosols, and the impacts of changing humidity 

and cloud cover; 

• Determining the relative contribution of human activities and natural causes; 

• Projecting future GHG emissions and how the climate system will respond within a narrow range; and 

• Improving our understanding of the potential for rapid or abrupt climate change. 

No alternative is expected to produce detectable impacts to global climate resources. However, given current 

technology, it is impossible to quantify any affect (positive or negative) with any degree of certainty. 

4.1.6 Irreversible/Irretrievable Commitment of Resources 

No violations to the NAAQS would be anticipated from implementation of the Proposed Action or alternatives, 

except that regional modeling indicates that the Optimal Recovery Alternative may contribute to potential 

exceedances of the NAAQS for ozone. Based on a dispersion modeling assessment predicting potential nearfield air quality impacts (Appendix G), localized, short-term increases in CO, NO2, and PM10 concentrations 

would occur, but maximum concentrations would be well below applicable state and federal criteria. Similarly, 

at the maximum assumed Proposed Action and alternatives emission rates, predicted HAP concentrations 

would be well below the identified NESHAP/MACT threshold of 10 tpy. Air pollutants in the vicinity would return 

to background levels at the end of operations. 

DEIS 4-17 July 2010
4.2 Cultural Resources and Native American Traditional Values 

4.2.1 No Action Alternative 

Under the No Action Alternative, drilling and completion of development wells and infrastructure would 

continue under the authority and conditions of approval of existing NEPA document decisions. Resource 

protection would be provided by mitigation as required under those previous NEPA documents, lease 

stipulations, and site-specific reviews. 

Based on previous Class III cultural resource inventories, a number of NRHP-eligible sites were identified in 

the GNBPA. To reduce effects to NRHP-eligible sites, the following stipulations are included in the APD 

approval: 1) all vehicular traffic, personnel movement, and construction and restoration operations would be 

confined to existing roads or along the ROW or locations approved for surface disturbance; 2) all project 

personnel would refrain from collecting artifacts and from disturbing any cultural resources in the area; 3) if any 

NRHP-eligible site is located in a proposed disturbance area, impact avoidance, including project re-design (if 

necessary), would be implemented; and 4) the appropriate jurisdictional agency would be consulted if 

subsurface cultural material is exposed during construction activities.

4.2.1.1 Impacts to Cultural Resources and Native American Traditional Values 

Previous archaeological evaluations in the GNBPA have resulted in the identification and recordation of a 

variety of cultural resource sites having eligibility to the NRHP. The majority of these sites are prehistoric lithic 

scatters and open occupation camps, and historic mines and features. Prehistoric sites identified during the 

inventories typically are found near drainages with adjacent cliffs or embankments, in sand dunes, and juniper 

vegetation zones; historic sites are found near water sources, as well as roads and mining features. 

The No Action Alternative would result in approximately 4,702 acres of new surface disturbance. Given the 

average site density of 7.1 sites per square mile, approximately 52 sites potentially could be located in new 

disturbance areas. Ground-disturbing activities associated with the No Action Alternative could result in 

adverse effects to cultural resources eligible for the NRHP. An adverse effect to an NRHP-eligible site would 

include an undertaking that alters, directly or indirectly, characteristics that qualify the site for inclusion on the 

NRHP in a manner that would diminish the integrity of the property’s location, design, setting, materials, 

workmanship, feeling, or association. Adverse effects include physical destruction of or damage to all or part of 

the property; alteration of a property or relocation from its historic location; change in the character of the 

property’s use, or of physical features within the property’s setting; introduction of visible, audible, or 

atmospheric elements out of character with the significant historic features of the property; neglect leading to 

deterioration or vandalism; and, transfer, sale, or lease from federal to non federal control without adequate 

and legally enforceable restrictions or conditions to ensure preservation of the historic significance of the 

property (36 CFR 800.5). 

In accordance with Section 106 of the NHPA, a Class III inventory has been conducted in all areas previously 

authorized for surface disturbance. Results of the inventory will be submitted to the BLM and Utah SHPO for 

review and concurrence. Coordination between the BLM and SHPO would determine mitigation, as needed, 

for any NRHP-eligible site that may be present in proposed disturbance areas. Previously implemented APD 

requirements (described above) also would reduce potential adverse effects to NRHP-eligible sites. 

4.2.2 Proposed Action Alternative 

4.2.2.1 Impacts on Cultural Resources and Native American Traditional Values 

Cultural Resources

The Proposed Action would result in approximately 12,658 acres of new surface disturbance. Given the 

average site density of 7.1 sites per square mile, approximately 142 sites potentially could be located in 

DEIS 4-18 July 2010
proposed new disturbance areas. The types of adverse effects that could occur to NRHP-eligible sites under 

the Proposed Action would be the same as described above for the No Action Alternative. 

In compliance with Section 106 of the NHPA, a Class III cultural resource inventory has been conducted for all 

proposed areas of disturbance associated with the Proposed Action. The inventory identified cultural resources 

either ineligible or eligible for inclusion on the NRHP and if any of the NRHP-eligible sites would be adversely 

affected by the proposed project. The values that render a cultural resource eligible for the NRHP would 

dictate what type and kind of impacts are of concern. If a cultural resource is not listed on the NRHP or has 

been determined by the BLM and SHPO as not eligible for listing on the NRHP, it is not a historic property for 

purposes of the NHPA and does not need to be considered under Section 106. 

As directed by Section 106, if any NRHP-eligible sites would be adversely affected by the Proposed Action, 

adverse effects would be appropriately mitigated. For NRHP-eligible sites located in proposed disturbance 

areas, site avoidance is the preferred method of mitigation. However, when avoidance is not feasible, data 

recovery (i.e., archaeological excavation), photo-documentation, additional archival research, or any other 

form of mitigation would be identified as part of the APD process and implemented prior to ground-disturbing 

activities associated with the Proposed Action. Mitigation would be developed by the BLM in consultation with 

the Utah SHPO and interested Tribes. Implementation of appropriate mitigation measures would eliminate or 

minimize project-related adverse effects. Data derived through mitigation could provide beneficial information 

on prehistoric and historic use in the GNBPA, as well as contribute to the regional database for cultural 

resources. 

Increased access to the GNBPA, as well as increases in both surface activities and number of workers during 

construction associated with the Proposed Action, could increase the potential for indirect impacts at 

archaeological sites. Indirect effects to archaeological sites often are not quantifiable. Potential indirect effects 

can include changes in erosion patterns due to construction, soil compaction, or vegetation removal; fugitive 

dust; off-road vehicle traffic associated with construction or maintenance activities; and increased vandalism, 

including illegal artifact collection, due to increased access. Accidental disturbance, vandalism, and illegal 

collecting would be expected to occur as a result of increased access to the GNBPA. 

Construction activities and associated operations could adversely affect undiscovered archaeological sites. 

Cultural resource inventories may not locate all significant sites. Buried sites, in particular burials, may be 

missed in the course of field investigations. If construction or other project personnel discover what may be 

human remains, funerary objects, or items of cultural patrimony on federal land, construction would cease 

within the vicinity of the discovery, and the AO would be notified of the find. The AO would notify the Uintah 

County Sheriff and state medical examiner. Any discovered Native American human remains, funerary 

objects, or items of cultural patrimony found on federal land would be handled in accordance with NAGPRA 

and ACEPMs (Appendix A). Non-Native American human remains would be handled in accordance with Utah 

law and ACEPMs. Construction would not resume in the area of the discovery until the AO has issued a notice 

to proceed. 

If human remains and associated funerary objects are discovered on state or private land during construction 

activities, construction would cease within the vicinity of the discovery and the Uintah County Sheriff and state 

medical examiner would be notified of the find. Treatment of any discovered human remains and associated 

funerary objects found on state or private land would be handled in accordance with the provisions of 

applicable Utah law and ACEPMs (Appendix A). 

Native American Traditional Values

The effects of federal undertakings on a traditional cultural property or place of cultural or religious importance 

to contemporary Native Americans are given consideration under the provisions of EO 13007, AIRFA, and 

recent amendments to the NHPA. As amended, the NHPA now integrates Indian Tribes into the Section 106 

compliance process, and also strives to make the NHPA and NEPA procedurally compatible. Furthermore, 

DEIS 4-19 July 2010
under NAGPRA, culturally affiliated Indian Tribes and the BLM jointly may develop procedures to be taken 

when Native American human remains are discovered on federal lands. 

Potential impacts to a traditional cultural property or place of cultural or religious importance to the Tribe as a 

result of the Proposed Action, as well as measures to avoid or mitigate potential adverse effects to these 

resources would be the same as those described above for cultural resources. 

Native American consultation regarding the identification of a traditional cultural property or place of cultural or 

religious importance in the GNBPA has been initiated by the BLM. At this time, three of the contacted Tribes 

have responded to the consultation letter sent out by the BLM. The Pueblo of Laguna and Navajo Nation 

stated that the proposed project would have no impact on properties of importance to the Tribes; however, 

both Tribes requested to be notified of any sites that may be discovered during construction activities. 

At the request of the Hopi Tribe, the BLM and Director of the Hopi Office of Cultural Preservation visited 

several stone cairn sites in the GNBPA. At the time of the field visit, the Director could not confirm whether any 

of the cairns sites were Hopi or ancestral Hopi. The Director plans to prepare a report that would summarize 

his findings, provide cultural affiliation and function of the sites, and indicate whether additional site visits are 

needed. 

In compliance with Section 106 and other applicable federal laws, no surface disturbance would occur within or 

immediately adjacent to the boundary of a potential traditional cultural property or place of Tribal importance 

prior to completion of all consultation required by law. If necessary, a data recovery or mitigation plan to 

mitigate potential impacts to a property of Tribal importance located in proposed disturbance areas would be 

developed. On federal lands, any such data recovery or mitigation plan would be reviewed and approved by 

the BLM and SHPO. Tribal representatives would be asked to participate in the development of any such data 

recovery or mitigation plan. 

4.2.2.2 Mitigation and Mitigation Effectiveness 

The following additional mitigation is recommended: 

CR-1 If deemed appropriate by the AO, construction activities within areas having a high site potential would 

be monitored by a qualified archaeologist for the presence of subsurface cultural material. 

Implementation of mitigation measure CR-1 would be effective. The measure would reduce the potential for 

subsurface cultural material to be missed by construction personnel during ground-disturbing activities in areas 

with a high potential for sites. 

4.2.2.3 Residual Impacts 

The Proposed Action would result in the loss of cultural resources that are not eligible for the NRHP. Although 

these sites would be recorded to BLM standards and the information integrated into local and statewide 

databases, the sites ultimately would be destroyed by project construction. It currently is unknown how many 

NRHP-eligible sites would be affected by the Proposed Action. Applicant-committed protection measures for 

cultural resource protection would be followed. If NRHP-eligible sites are identified within proposed 

disturbance areas, impacts would be avoided or, if avoidance is not feasible, mitigated in consultation with the 

Utah SHPO and interested Tribes. NRHP-eligible sites would be mitigated through implementation of data 

recovery or other forms of mitigation. Since some of the cultural value associated with these sites cannot be 

fully mitigated, it is anticipated that residual impacts to these resources would occur. 

Accidental disturbance, vandalism, and illegal collecting would be expected to increase in the GNBPA as a 

result of project development. 

DEIS 4-20 July 2010
4.2.3 Resource Protection Alternative 

4.2.3.1 Impacts on Cultural Resources and Native American Traditional Values 

The Resource Protection Alternative would result in approximately 8,147 acres of new surface disturbance; 

4,511 fewer acres of new surface disturbance compared to the Proposed Action. Given the average site 

density of 7.1 sites per square mile, approximately 90 sites potentially could be located within new disturbance 

areas. The types of adverse effects that could occur to NRHP-eligible sites under this alternative would be the 

same as described for the No Action Alternative. Implementation of ACEPMs (Appendix A) and consultation 

procedures in the event of unanticipated discoveries would be the same as those described for the Proposed 

Action. Under this alternative, it is anticipated that fewer cultural resources would be affected compared to the 

Proposed Action. Increased access into the GNBPA could increase illegal collecting, vandalism, and 

accidental disturbance. 

4.2.3.2 Mitigation and Mitigation Effectiveness 

Mitigation and mitigation effectiveness would be the same as described for the Proposed Action. 

4.2.3.3 Residual Impacts 

Residual impacts would be the same as described for the Proposed Action, but to a lesser extent. 

4.2.4 Optimal Recovery Alternative 

4.2.4.1 Impacts on Cultural Resources and Native American Traditional Values 

The Optimal Recovery Alternative would result in approximately 42,620 acres of new surface disturbance; 

29,962 more acres of new surface disturbance compared to the Proposed Action. Given the average site 

density of 7.1 sites per square mile, approximately 475 sites potentially could be located within new 

disturbance areas. The types of adverse effects that could occur to NRHP-eligible sites under this alternative 

would be the same as described for the No Action Alternative. Implementation of ACEPMs (Appendix A) and 

consultation procedures in the event of unanticipated discoveries would be the same as those described for 

the Proposed Action. Under this alternative, it is anticipated that more cultural resources would be affected 

compared to the Proposed Action. Increased access into the GNBPA could increase illegal collecting, 

vandalism, and accidental disturbance. 

4.2.4.2 Mitigation and Mitigation Effectiveness 

Mitigation and mitigation effectiveness would be the same as described for the Proposed Action. 

4.2.4.3 Residual Impacts 

Residual impacts would be the same as described for the Proposed Action, but to a greater extent. 

4.2.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

The Proposed Action would result in the loss of short-term use and long-term productivity of cultural resources 

not eligible for the NRHP located in proposed disturbance areas. For NRHP-eligible sites located in proposed 

disturbance areas that cannot be avoided, data recovery or other type of mitigation would be conducted prior 

to ground disturbance. The scientific information obtained through mitigation would be preserved for the long 

term. However, the site itself ultimately would be lost. There would be a long-term loss of cultural resources 

due to illegal collecting and vandalism associated with increased human activity in, and access to, the GNBPA. 

DEIS 4-21 July 2010
4.2.6 Irreversible/Irretrievable Commitment of Resources 

Cultural resources would be irreversibly and irretrievably lost if inventory, avoidance, and/or mitigation efforts 

are not sufficient to identify and protect all NRHP-eligible sites within proposed disturbance areas. 

DEIS 4-22 July 2010
4.3 Geology 

4.3.1 No Action Alternative 

Minerals management under the Vernal RMP provides for the leasing of oil and gas, oil shale, and gilsonite 

while other resource values are protected or mitigated. Sand, gravel, and building stone would be provided 

where compatible with other resource uses. Locatable minerals would be administered according to the BLM 

regulations for surface management of mining development. Mineral leases would be issued with standard 

stipulations or additional measures protective of specific resources and values. 

4.3.1.1 Impacts on Geology 

Mineral Resources

Leasable Minerals. 

 Oil and Gas Resources. Under the No Action Alternative, average daily gas production from within 

the GNBPA is estimated to increase to a peak output of approximately 278 million cubic feet per day (MMcfd). 

KMG anticipates recoverable gas and condensate resource over the life of the wells would be approximately 

1,412 Bcf of gas and 22.3 million bbls condensate. These gas and condensate resources would be removed 

from the subsurface and no longer would be available for extraction. Production from these wells is expected 

to last 30 to 50 years per well. 

 Oil Shale. Much of the GNBPA is considered suitable for underground development of oil shale 

according to the Vernal Mineral Report supporting the Vernal RMP. Approximately 60 percent of the GNBPA 

(97,400 acres) overlies areas of high oil shale development potential defined as KOSLAs. According to GIS 

data obtained from USITLA, 38,000 acres of state lands within the GNBPA have been leased for oil shale 

development. In the event of development of commercially viable extraction techniques for oil shale, there 

could be conflicts with oil and gas extraction. Oil and gas wells could not be located so close to an active or 

inactive mine that there was a danger of lost well circulation or damage to the mine, estimated to be a distance 

of several hundred feet. As of October 2007, approximately 1,800 existing or approved wells were located 

within the KOSLA in the GNBPA, including approximately 640 wells on state surface and 10 on private 

surface. Assuming a distance of 500 feet between an oil and gas well and a mine, approximately 32,500 acres 

of the KOSLA within the GNBPA would be unavailable for oil shale development through the 30- to 50-year life 

of the project 

 Gilsonite. Commercial gilsonite deposits are restricted to the Uinta Basin and numerous gilsonite 

veins cross the GNBPA. All current production occurs from within or adjacent to the GNBPA and there are 

authorized leases or pending leases within the GNBPA. As of October 2007, there were six existing or 

approved oil and gas well locations within authorized gilsonite leases in the GNBPA. Blasting in proximity of 

gilsonite mining operations could result in vibrations and potential mine collapse. Wells drilled proximal to 

mines also have the potential for the loss of drilling mud into the mine. Although expanded oil and gas 

development could lead to potential conflicts with gilsonite exploitation, the probability of such conflict is 

expected to be low. The limited areal extent of the identified gilsonite-bearing veins and vertical orientation of 

the veins suggests that oil and gas operations could avoid gilsonite development areas. 

4.3.2 Proposed Action Alternative 

4.3.2.1 Impacts on Geology 

Mineral Resources

Leasable Minerals. 

 Oil and Gas Resources. Under the Proposed Action Alternative, 3,675 new wellbores would be 

drilled. Assuming successful completion of the wells, average daily gas production from within the GNBPA 

from this alternative is estimated to increase to a peak of approximately 751 MMcd and 15,530 barrels 

DEIS 4-23 July 2010
condensate per day (BCPD). Recoverable gas and condensate resource over the life of the wells from 

implementation of the Proposed Action would be approximately 6,070 Bcf of gas and 86.5 million bbls 

condensate. These gas and condensate resources would be removed from the subsurface and would no 

longer be available for extraction. 

 Oil Shale. There is some potential for development of oil shale within the GNBPA during the life of the 

project. Impacts to oil shale development would be similar to those described under the No Action Alternative, 

but proportional to the number of wells drilled. 

 Gilsonite. There is a moderate probability for development of gilsonite deposits within the GNBPA 

during the life of the project. Under this alternative, up to 14 new wells could be drilled within authorized 

gilsonite leases. Impacts would be similar to those described under the No Action Alternative, but proportional 

to the number of wells. 

4.3.2.2 Mitigation and Mitigation Effectiveness 

The following additional mitigation measure is recommended: 

GEO-1 If blasting operations are scheduled to occur within 2 miles of an active gilsonite mine, the mine 

operator would be notified at least 24 hours prior to blasting to coordinate activities for mine worker 

safety. 

Notification would be effective in protecting mine worker safety. 

4.3.2.3 Residual Impacts 

Mineral Resources

Oil and gas production from implementation of the Proposed Action Alternative would be expected to continue 

for 40 to 60 years (10-year drilling program, 30- to 50-year production life). Produced gas and condensate 

would be permanently removed from the resource base. Associated water production and disposal activities 

would continue for the lives of the wells. 

Residual impacts to oil shale or gilsonite mining would be similar to that indicated above for the Proposed 

Action. 

4.3.3 Resource Protection Alternative 

4.3.3.1 Impacts on Geology 

Mineral Resources

Leasable Minerals. 

 Oil and Gas Resources. Implementation of the Resource Protection Alternative would result in the 

same number of wellbores as the Proposed Action. Therefore, maximum daily production rates and volumes 

of recovered natural gas and associated condensate are assumed to be identical to amounts produced under 

the Proposed Action. 

 Oil Shale. Impacts to oil shale would be the same as to those anticipated from implementation of the 

Proposed Action. Although this alternative involves fewer surface well pads, the number of subsurface (or 

downhole) wells, and therefore impacts to oil shale development, would be the same as for the Proposed 

Action. 

 Gilsonite. Impacts to gilsonite resources would be similar to those anticipated from implementation of 

the Proposed Action, but reduced well pad spacing would mean that only five new well pads could be drilled 

DEIS 4-24 July 2010
within authorized gilsonite leases. In areas of directional well bores, impacts would be similar to those 

discussed for oil shale. 

4.3.3.2 Mitigation and Mitigation Effectiveness 

Mitigation (GEO-1) and the effectiveness of mitigation measures would be the same as discussed under the 

Proposed Action Alternative. No additional mitigation measures have been identified. 

4.3.3.3 Residual Impacts 

Mineral Resources

Oil and gas production from implementation of the Resource Protection Alternative would be expected to 

continue for 40 to 60 years. Produced gas and condensate would be permanently removed from the resource 

base. Associated water production and disposal activities would continue for the lives of the wells. 

Residual impacts to oil shale and gilsonite mining would be similar to, and possibly greater than, those for the 

Proposed Action since the same number of well bores would be employed but directional drilling would 

increase the distance or length of boreholes crossing potential mine areas. 

4.3.4 Optimal Recovery Alternative 

4.3.4.1 Impacts on Geology 

Mineral Resources

Leasable Minerals. 

 Oil and Gas Resources. Under the Optimal Recovery Alternative, 13,446 new wellbores would be 

drilled. Assuming successful completion of the wells, average daily gas production from within the GNBPA 

from this alternative is estimated to increase to a peak of approximately 1,619 MMcfd and 14,017 BCPD. 

Recoverable gas and condensate resource over the life of the wells from implementation of the Optimal 

Recovery Alternative would be approximately 15,440 Bcf of gas and 118 million bbls condensate. These gas 

and condensate resources would be removed from the subsurface and would no longer be available for 

extraction. 

 Oil Shale. There is some potential for development of oil shale within the GNBPA during the life of the 

project. The higher density of well pads and associated facilities under the Optimal Recovery Alternative would 

proportionally increase the potential for conflict with other mineral extraction operations. 

 Gilsonite. There is a moderate probability for development of gilsonite deposits within the GNBPA 

during the life of the project. The higher density of well pads and associated facilities under the Optimal 

Recovery Alternative would proportionally increase the potential for conflict with gilsonite mining operations. 

Under this alternative, up to 32 additional wells could be drilled within authorized gilsonite leases. 

4.3.4.2 Mitigation and Mitigation Effectiveness 

Mitigation and the effectiveness of mitigation measures would be the same as discussed under the Proposed 

Action Alternative. No additional mitigation measures have been identified. 

4.3.4.3 Residual Impacts 

Mineral Resources

Oil and gas production from implementation of the Optimal Recovery Alternative would be expected to 

continue for 40 to 60 years. Produced gas and condensate would be permanently removed from the resource 

base. Associated water production and disposal activities would continue for the lives of the wells. 

DEIS 4-25 July 2010
Residual impacts to oil shale or gilsonite mining would be similar to that indicated for the Proposed Action, but 

proportionally greater because of the greater well density. 

4.3.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Development of oil and gas resources within the GNBPA would permanently remove a large fraction of the 

technically recoverable resource for short-term use, depending on the selected alternative over the life of the 

project. Drilling of additional wells in the GNBPA could prevent extraction of oil shale and/or gilsonite in areas 

proximal to well bores over the long term. 

4.3.6 Irreversible/Irretrievable Commitment of Resources 

Extraction of oil and gas would irreversibly expend the resource, which would not be available for future uses. 

Oil and gas development could irretrievably affect the ability to recover gilsonite or oil shale resources during 

the life of the project. 

DEIS 4-26 July 2010
4.4 Land Use 

The proposed project and alternatives would impact lands owned by the BLM, Ute Tribe, State of Utah, and 

private landowners. Table 4.4-1 provides a summary of surface disturbance by landowner type for all 

alternatives. 

Table 4.4-1 Summary of Surface Ownership Impacts for Each Alternative

Surface Owner 

Surface Area

in GNBPA

(acres)

Surface Impacts per Alternative (acres) 

No Action

Proposed

Action

Resource 

Protection Optimal Recovery

BLM 88,565 2,556 6,882 4,429 23,170 

Ute Indian Tribe 39,399 1,137 3,061 1,970 10,307 

State of Utah 32,755 946 2,545 1,638 8,569 

1 Private 2,192 93 170 110 574 

Totals 162,911 4,702 12,658 8,147 42,620 

1

 Includes allottees. 

4.4.1 No Action Alternative 

Under the No Action Alternative, drilling and completion of development wells and infrastructure would 

continue under the authority and COAs of existing NEPA document decisions. Resource protection would be 

provided by mitigation as required under those previous NEPA documents, lease stipulations, and site-specific 

reviews. 

4.4.1.1 Impacts on Land Use 

There would be 4,702 acres of new surface disturbance associated with the No Action Alternative from oil and 

gas related activities already approved within the GNBPA. Of this total, 1,503 acres would be from access 

roads; 2,755 acres from well pads; and the remainder would be from a combination of production and linear 

facilities (Table 2.4-1). The greatest impact to landowners would be on BLM-administered land, Tribal lands, 

and land administered by the USITLA. Surface disturbance by ownership is summarized in Table 4.4-1. 

White River SRMA

Under the No Action Alternative, 2 wells would be placed or built within the White River SRMA. Based on an 

estimated 3.9 acres of disturbance per well, approximately 7.8 acres would be affected, or 0.3 percent of the 

total acreage within the White River SRMA. Surface disturbance potentially would impact recreational activities 

and visual resources. 

4.4.2 Proposed Action Alternative 

Under the Proposed Action Alternative, operators would construct and operate 3,675 wellbores at a rate of 

358 wells per year over a 10-year timeframe, including associated infrastructures (e.g., compressor stations, 

gathering pipelines, access roads). KMG would implement development using environmental protection 

measures consistent with the ACEPMs (Appendix A) and the Reclamation Plan (Appendix E).

4.4.2.1 Impacts on Land Use 

Under the Proposed Action, the proposed wells, pipelines, access roads, and ancillary facilities would be 

constructed on approximately 12,658 acres throughout the GNBPA. Of this total disturbance, 4,147 acres 

would be from access roads; 7,729 acres would be from well pads; and the remainder would be from a 

DEIS 4-27 July 2010
combination of production and linear facilities (Table 2.6-1). The greatest impact to landowners would be on 

BLM-administered land, Tribal lands, and land administered by the USITLA. Surface disturbance by ownership 

is summarized in Table 4.4-1. 

The impacts to specific land use types would be varied. Because most of the agricultural land in the GNBPA is 

directly adjacent to the White River, where drilling would not occur, agriculture would not be impacted. The 

impact on recreational land would be diverse. Although recreational opportunities would increase with greater 

access provided by new roads into the GNBPA, the increased human disturbance would intrude upon 

recreational activities such as hiking and hunting. Refer to Section 4.6, Range Resources, for a discussion 

regarding impacts to grazing in the GNBPA. 

White River SRMA

The White River SRMA totals 2,831 acres, of which approximately 632 acres occur within the GNBPA. Under 

the Proposed Action, approximately 7.8 percent of the GNBPA would be disturbed (Table 2.6-1). Therefore, it 

is estimated that approximately 49 acres of the SRMA would be directly disturbed within the GNBPA. This 

would be equivalent to approximately 1.7 percent of the total White River SRMA acreage. Disturbance would 

not be uniformly distributed throughout the area. Impacts to recreational activities and visual resources within 

the White River SRMA would be minor due to KMG’s commitment not to drill along the White River within the 

viewshed up to 0.5 mile from the river centerline outside of Indian Trust Lands, and 600 feet from the edge of 

the White River on Indian Trust Lands. This is consistent with the RMP stipulation of NSO within 0.5 mile of the 

White River centerline within the SRMA. 

4.4.2.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Proposed Action Alternative. 

4.4.2.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for the 

Proposed Action. 

4.4.3 Resource Protection Alternative 

The Resource Protection Alternative would be similar to the Proposed Action Alternative except for the limit 

placed on the maximum number of new well pad locations to one pad per 40 acres (maximum of 16 well pads 

per section). Under the Resource Protection Alternative, 3,675 new wellbores would be constructed at a rate of 

358 wells per year over a 10-year timeframe, including associated infrastructures (e.g., compressor stations, 

gathering pipelines, access roads). KMG would implement oil and gas development using environmental 

protection measures consistent with the ACEPMs (Appendix A) and the Reclamation Plan (Appendix E). 

4.4.3.1 Impacts on Land Use 

Under the Resource Protection Alternative, the proposed wells, pipelines, access roads, and ancillary facilities 

would be constructed on approximately 8,147 acres of land in the GNBPA. Of this total disturbance, 

3,238 acres would be from access roads; 4,148 acres would be from well pads; and the remainder would be 

from a combination of production and linear facilities (Table 2.7-1). The greatest impact to landowners would 

be on BLM-administered land, Tribal Lands, and land administered by USITLA. Surface disturbance by 

ownership is summarized in Table 4.4-1. 

White River SRMA

The White River SRMA totals 2,831 acres, of which approximately 632 acres occur within the GNBPA. Under 

the Resource Protection Alternative, approximately 5 percent of the GNBPA would be disturbed (Table 2.7-1). 

Therefore, it is estimated that approximately 32 acres of the SRMA would be directly disturbed within the 

GNBPA. This would be equivalent to approximately 1.1 percent of the total White River SRMA. Disturbance 

DEIS 4-28 July 2010
would not be uniformly distributed throughout the area. Impacts to recreational activities and visual resources 

within the White River SRMA would be minor due to KMG’s commitment not to drill along the White River 

within the viewshed up to 0.5 mile from the river centerline outside of Indian Trust Lands, and 600 feet from the 

edge of the White River on Indian Trust Lands. This is consistent with the RMP stipulation of NSO within 

0.5 mile from the White River centerline within the SRMA. 

4.4.3.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Resource Protection Alternative. 

4.4.3.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for this 

alternative. 

4.4.4 Optimal Recovery Alternative 

Under the Optimal Recovery Alternative, operators propose to construct and operate 13,446 wellbores at a 

rate of 672 wells per year over a 20-year timeframe, including associated infrastructures (e.g., compressor 

stations, gathering pipelines, access roads). This alternative is designed to maximize recovery of the gas 

resource by increasing the number of wellbores to achieve 10-acre surface and downhole spacing throughout 

the GNBPA. KMG would implement development using environmental protection measures consistent with the 

ACEPMs (Appendix A) and the Reclamation Plan (Appendix E). 

4.4.4.1 Impacts on Land Use 

Under the Optimal Recovery Alternative, the proposed wells, pipelines, access roads, and ancillary facilities 

would be constructed on approximately 42,620 acres of land in the GNBPA. Of this total disturbance, 

8,875 acres would be from access roads; 32,157 acres from well pads; and the remainder from a combination 

of production and linear facilities (Table 2.8-1). The greatest impact to landowners would be on BLMadministered land, Tribal lands, and land administered by the USITLA. Surface disturbance by ownership is 

summarized in Table 4.4-1. 

White River SRMA

The White River SRMA totals 2,831 acres, of which approximately 632 acres occur within the GNBPA. Under 

the Optimal Recovery Alternative, approximately 26 percent of the GNBPA would be disturbed (Table 2.8-1). 

Therefore, it is estimated that approximately 164 acres of the SRMA would be directly disturbed within the 

GNBPA. This would be equivalent to approximately 5.8 percent of the total White River SRMA. Disturbance 

would not be uniformly distributed throughout the area. Impacts to recreational activities and visual resources 

within the White River SRMA would be minor due to KMG’s commitment not to drill along the White River 

within the viewshed up to 0.5 mile from the river centerline outside of Indian Trust Lands, and 600 feet from the 

edge of the White River on Indian Trust Lands. This is consistent with the RMP stipulation of NSO within 

0.5 mile from the White River centerline within the SRMA. 

4.4.4.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Optimal Recovery Alternative. 

4.4.4.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for this 

alternative. 

DEIS 4-29 July 2010
4.4.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Many of the aboveground facilities, such as drill rigs and water tanks, eventually would be removed at the end 

of their relatively short-term life spans and the land would be reclaimed to natural conditions. While the 

reclamation of arid desert lands can take several decades, these actions potentially would reduce the 

long-term impacts to public land resources such as wilderness characteristics and recreational opportunities.

4.4.6 Irreversible/Irretrievable Commitment of Resources 

Impacts to land use generally would be reversible through reclamation efforts, although loss of use during 

operation would be irretrievable.

DEIS 4-30 July 2010
4.5 Paleontology 

4.5.1 No Action Alternative 

Paleontological resources of potential scientific importance, particularly vertebrate fossils, are protected under 

the Vernal RMP. Approximately 88 percent of the GNBPA surface is underlain by the Uinta or Green River 

formations, stratigraphic units that have been evaluated by the BLM as having a high to very high potential for 

producing fossils of scientific interest. Surface disturbance of these units typically requires pre-construction 

pedestrian surveys by a permitted paleontologist and may require monitoring during construction. 

4.5.1.1 Impacts on Paleontology 

Implementation of the No Action Alternative would result in the drilling of 1,102 new wells disclosed under 

previous NEPA documents with an estimated new surface disturbance of approximately 4,702 acres 

(2.9 percent of the GNBPA). Approximately 95 percent of this disturbance would occur in areas underlain by 

the high to very high value (PFYC Class 4 or 5) Uinta Formation. Previous paleontologic surveys in the 

GNBPA have indicated the widespread occurrence of vertebrate fossils. Pre-construction evaluations by a 

permitted paleontologist would be conducted on federal and state surfaces and, pending the results of the 

evaluation, monitoring during construction could be required. 

Under the No Action Alternative, there is a high potential for the loss of vertebrate fossils by any surface 

disturbing activity, illegal collecting, and potential vandalism. Mitigation measures required by the BLM under 

existing NEPA decision documents generally would result in the recovery of these fossils and information 

about them would be added to the regional paleontological database. 

4.5.2 Proposed Action Alternative 

4.5.2.1 Impacts on Paleontology 

Implementation of the Proposed Action Alternative would result in the construction of 3,041 new well pads and 

associated facilities and expansion of 634 additional well pads with an estimated surface disturbance of 

approximately 12,658 acres (7.8 percent of the GNBPA). Approximately 95 percent of this disturbance would 

occur in areas underlain by the high to very high value Uinta Formation and there is a high potential for the 

loss of vertebrate fossils by any surface disturbing activity, illegal collecting, and potential vandalism. As 

indicated in Appendix A, pre-construction evaluations by a permitted paleontologist would be conducted by 

KMG and, pending the results of the evaluation, monitoring during construction could be required. 

4.5.2.2 Mitigation and Mitigation Effectiveness 

The following additional mitigation is recommended: 

PALEO-1 All fossils of potential scientific importance would be avoided by surface disturbing activities as 

directed by the AO. 

PALEO-2 Pending the results of the pre-construction surveys, the BLM could require data recovery at 

high-value fossil sites that cannot be avoided. 

4.5.2.3 Residual Impacts 

There would be minimal anticipated residual impacts to paleontological resources on federal, Tribal, and state 

land as a result of ACEPMs and mitigations. On private lands where paleontological surveys would not be 

conducted, oil and gas development could result in higher potential for destruction of fossils and loss of 

paleontologic information; however, private surface ownership constitutes only approximately 1.3 percent of 

the GNBPA and approximately half is located in areas underlain by Quaternary deposits not known to contain 

scientifically important fossils. Residual impacts would include the potential destruction of unknown or 

unmarked fossils. 

DEIS 4-31 July 2010
4.5.3 Resource Protection Alternative 

4.5.3.1 Impacts on Paleontology 

Implementation of the Resource Protection Alternative would include the construction of 1,484 new single well 

pads; 2,191 twin/multi well pads; and installation of associated facilities, resulting in an estimated new surface 

disturbance of approximately 8,147 acres (5.0 percent of the GNBPA). Approximately 95 percent of this 

disturbance would occur in areas underlain by the high to very high value Uinta Formation and there is a high 

potential for loss of vertebrate fossils by any surface disturbing activity, illegal collecting, and potential 

vandalism. Pre-construction evaluations by a permitted paleontologist would be an ACEPM. Potential impacts 

to paleontological resources would be the same as the Proposed Action, but smaller in scale proportional to 

the respective levels of surface disturbance. 

4.5.3.2 Mitigation and Mitigation Effectiveness 

Mitigation measures and effectiveness would be the same as indicated for the Proposed Action Alternative. 

4.5.3.3 Residual Impacts 

Residual impacts would be the same as those indicated for the Proposed Action Alternative. 

4.5.4 Optimal Recovery Alternative 

4.5.4.1 Impacts on Paleontology 

Implementation of the Optimal Recovery Alternative would result in the construction of 12,812 new well pads 

and associated facilities and expansion of 634 additional well pads with an estimated surface disturbance of 

approximately 42,620 acres (26.2 percent of the GNBPA). Approximately 95 percent of this disturbance would 

occur in areas underlain by the high to very high value Uinta Formation and there is a high potential for the 

loss of vertebrate fossils by any surface disturbing activity, illegal collecting, and potential vandalism. The 

applicant has committed to conducting pre-construction evaluations by a permitted paleontologist and, pending 

the results of the evaluations, monitoring during construction could be required. Potential impacts to 

paleontological resources would be the same as the Proposed Action, but larger in scale proportional to the 

respective levels of surface disturbance. 

4.5.4.2 Mitigation and Mitigation Effectiveness 

Mitigation measures and effectiveness would be the same as indicated for the Proposed Action Alternative. 

4.5.4.3 Residual Impacts 

Residual impacts would be the same as those indicated for the Proposed Action Alternative. 

4.5.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Implementation of development activities within the GNBPA would lead to increased pre-construction 

paleontological field surveys, identification of fossil localities, and documentation or recovery of scientifically 

important fossils. Long-term increased human activity in the area could lead to an increase in illegal collecting 

and loss of paleontological information. 

4.5.6 Irreversible/Irretrievable Commitment of Resources 

Disturbance of undocumented or uncurated fossils during the implementation of the project would result in the 

irreversible loss of paleontological information. Specific irretrievable commitments of paleontologic resources 

have not been identified. 

DEIS 4-32 July 2010
4.6 Range Resources 

The primary issues associated with range resources include direct and indirect impacts associated with the 

loss of acreage and active AUMs by allotment, potential impacts to existing water sources and range 

improvements, and potential impacts to seasonal livestock movement within grazing allotments. 

4.6.1 No Action Alternative 

4.6.1.1 Impacts on Range Resources 

Allotments (AUMs)

Under the No Action Alternative, approximately 4,702 acres of vegetation would be removed within the 

GNBPA as a result of new surface disturbance-related activities; 4,447 acres of which would occur within 

portions of the 12 grazing allotments contained wholly or partially within the GNBPA (Table 4.6-1). This would 

result in a total loss of approximately 378 AUMs. 

Table 4.6-1 Carrying Capacity Impacts by Allotment Under the No Action Alternative 

Total Projected Active Percent Loss of 

Grazing Allotment 

Name 

Total Allotment 

Acreage 

Allotment 1 Active AUMs

Allotment Acreage 

Disturbed in GNBPA 

AUMs Lost in 

GNBPA2 

Total Active 

AUMs 

Antelope Draw 61,530 3,976 86 7 ≤1 

Coyote Wash 99,290 9,554 625 60 ≤1 

Olsen AMP 134,306 12,144 1,062 96 ≤1 

Sand Wash 75,136 7,974 1,482 157 2.0 

Seven Sisters 19,285 2,348 249 30 1.3 

Southam Canyon 13,827 1,357 10 1 ≤1 

Thorne-Ute Broome 5,436 400 2 ≤1 ≤1 

White River Bottoms 12,900 885 16 1 ≤1 

BLM TOTAL 421,710 38,638 3,532 352 -- 

Cottonwood Wash 7,486 168 217 5 2.9 

Molly’s Nipple 10,742 400 304 11 2.8 

Chapita Grove 11,330 311 82 2 ≤1 

North White River 18,960 485 312 8 1.6 

BIA TOTAL 48,518 1,364 915 26 -- 

GRAND TOTAL 470,228 40,002 4,4473 378 -- 

1 An AUM represents the quantity of forage necessary to sustain 1 cow-calf pair or 5 sheep for 1 month. 2 Projected active AUMs lost and percent active AUM loss were calculated based on a percentage of the stocking rate within the surface disturbance-related 

impact area compared to the allotment stocking rate as a whole. 3

 Formal grazing allotments do not exist for 255 acres disturbed under the No Action Alternative; therefore, this acreage total does not equal the number of total 

new surface disturbance for the No Action Alternative. 

Rangeland Improvements/Facilities

Under the No Action Alternative, approved development of wells and infrastructure would continue under the 

provisions of BLM resource planning and recent NEPA decisions in parts of the GNBPA. The nature and 

extent of these approved wellfield developments are described in Section 2.4 for the No Action Alternative. 

Resource protection would be provided by mitigation under those existing NEPA assessments and lease 

stipulations already in force. 

Under the authority and conditions stated in existing NEPA decision documents for the area, operators are 

exercising their valid lease rights to extract natural gas from the subsurface in order to increase its sale and 

delivery. In combination with the aforementioned authorizations, additional wells drilled on state and private 

DEIS 4-33 July 2010
lands (i.e., non-NEPA approved actions) result in a total of approximately 1,102 wells remaining to be drilled in 

the GNBPA. The following text identifies direct and indirect impacts to range resources and requirements to 

minimize and mitigate these impacts as outlined within existing NEPA documents for lands administered by 

the BLM within the GNBPA. 

• Ongoing livestock management issues include proper control of livestock while on their assigned 

grazing allotments. The increased number of roads would contribute to difficulties in controlling 

livestock as more natural barriers to livestock movement are removed and as more livestock use 

roads as travel routes. Applicant-committed measures to ensure the integrity of existing fences, 

adherence to posted speed limits, and proper installation and regular maintenance of cattle guards 

would ensure management of livestock while on their allotments. 

• During construction, the potential for vehicle-livestock collisions also would increase due to higher 

traffic volume resulting in potential injury and mortality to livestock. Fencing may be cut for access 

during construction. In addition, placement of associated infrastructures too near to livestock facilities 

(e.g., livestock reservoirs) could alter the condition or usability of the facilities. Applicant-committed 

measures, as outlined above, would minimize these impacts. 

4.6.2 Proposed Action Alternative 

Under the Proposed Action Alternative, 3,675 wells would be constructed at a rate of 358 wells per year over a 

10-year timeframe, including associated infrastructures (e.g., compressor stations, gathering pipelines, access 

roads) within portions of 12 grazing allotments. KMG would implement oil and gas development using 

environmental protection measures consistent with the ACEPMs (Appendix A), Reclamation Plan 

(Appendix E), and Integrated Weed Management Plan (Appendix J). 

4.6.2.1 Impacts on Range Resources 

Allotments (AUMs)

Table 4.6-2 identifies the acreage of disturbance per allotment, the number of livestock AUMs per allotment, 

and the percentage of AUMs that could be lost under the Proposed Action Alternative. Based on the loss of 

11,966 acres due to surface disturbance activities within portions of the 12 grazing allotments, 1,018 AUMs 

would be lost over the life of the project. 

Table 4.6-2 Carrying Capacity Impacts by Allotment Under the Proposed Action 

Grazing Allotment Name 

Total 

Allotment 

Acreage 

Total 

Allotment 1 Active AUMs

Allotment Acreage 

Disturbed in GNBPA 

Projected Active 

AUMs Lost in 

GNBPA2

Percent Loss of 

Total Active 

AUMs 

Antelope Draw 61,530 3,976 232 15 ≤1 

Coyote Wash 99,290 9,554 1,681 162 1.7 

Olsen AMP 134,306 12,144 2,859 259 2.1 

Sand Wash 75,136 7,974 3,988 423 5.3 

Seven Sisters 19,285 2,348 669 81 3.5 

Southam Canyon 13,827 1,357 29 3 ≤1 

Thorne-Ute Broome 5,436 400 6 1 ≤1 

White River Bottoms 12,900 885 42 3 ≤1 

BLM TOTAL 421,710 38,638 9,506 947 -- 

DEIS 4-34 July 2010
Table 4.6-2 Carrying Capacity Impacts by Allotment Under the Proposed Action 

Total Total Projected Active Percent Loss of 

Grazing Allotment Name 

Allotment 

Acreage 

Allotment 1 Active AUMs

Allotment Acreage 

Disturbed in GNBPA 

AUMs Lost in 

GNBPA2

Total Active 

AUMs 

Cottonwood Wash 7,486 168 582 14 7.7 

Molly’s Nipple 10,742 400 818 30 7.6 

Chapita Grove 11,330 311 220 6 2.0 

North White River 18,960 485 840 21 4.4 

BIA TOTAL 48,518 1,364 2,460 71 -- 

GRAND TOTAL 470,228 40,002 11,9663 1,018 -- 

4-35

1 An AUM represents the quantity of forage necessary to sustain 1 cow-calf pair or 5 sheep for 1 month. 2 Projected active AUMs lost and percent active AUM loss were calculated based on a percentage of the stocking rate within the surface disturbance-related 

impact area compared to the allotment stocking rate as a whole. 3 Formal grazing allotments do not exist for 692 acres disturbed under the Proposed Action Alternative; therefore, this acreage total does not equal the number 

of total new surface disturbance.

Direct impacts from construction and production activities to grazing allotments would include the loss of 

forage, impacts to lambing areas, potential disruption of lambing periods, and increased mortality and injuries 

to livestock resulting from increased vehicle traffic. In addition, livestock could be displaced from preferred 

grazing areas, range improvements (including water sources), and range study plots by construction and 

production activities. 

Loss of forage would result from surface disturbance related to construction of roads, pipelines, well pads, and 

ancillary facilities; drilling and field development; and the placement of permanent infrastructure and facilities. 

In addition, loss of forage would result from the potential conversion of native vegetation communities due to 

indirect effects such as erosion and the invasion and spread of noxious and invasive weed species. The loss 

of forage is considered long-term for both construction and operation surface disturbance activities due to the 

difficulty in achieving successful reclamation in the Uinta Basin. Successful reclamation is defined as 

re-establishing a sustainable vegetation community that has similar species diversity and vegetative cover 

compared to similar undisturbed native vegetative communities. Successful reclamation is difficult in the Uinta 

Basin due to multi-year droughts in the area, high percentage of soils with characteristics that limit restoration 

(Section 4.9, Soils), and the noxious and invasive weed species present in the area. 

Active lambing areas could be reduced or lost due to construction and production activities that take place in or 

near them. In addition, noise and human presence from construction and production activities near lambing 

areas could result in the disturbance of lamb and ewe pairs. Ewes disturbed by construction and production 

activities could abandon their lambs, resulting in increased lamb mortality. 

Construction and production activities would result in increased vehicle traffic and potentially increased 

vehicular speed on roads that are improved. Increased vehicle traffic and speeds would increase the potential 

for livestock/vehicle collisions. The increases in traffic and road network could cause disruptions to livestock 

management and increase the time and cost of these activities. The control and management of livestock 

could be affected as more natural barriers to livestock movement are removed and as more livestock use 

roads as travel routes. Benefits from additional roads would include better access to grazing allotments, water 

resources, grazing facilities, and livestock. 

Indirect impacts would include the spread of noxious and invasive species, fugitive dust, and fragmentation of 

allotments. Following surface disturbance activities, noxious weeds and invasive plant species may readily 

spread and colonize areas that typically lack or have minimal vegetation cover or areas that have been 

recently disturbed. Of specific concern is the species halogeton (Halogeton glomeratus), which is common in 

the area on disturbed sites. The consumption of halogeton can lead to intoxication and death in sheep and 

cattle (Torrell et al. 2000). Halogeton is commonly found in association with disturbed shadscale (Atriplex 

DEIS July 2010
confertifolia) shrublands, and as a codominant species with annuals such as cheatgrass (Bromus tectorum) 

(Pavek 1992). The spread of halogeton in disturbed areas could lead to the loss of available native forage and 

increased livestock mortality. 

An increase in the number of roads and traffic could lead to increases in fugitive dust, which could decrease 

native forage and impact livestock health. The construction of roads, utility ROWs, and temporary and 

permanent facilities associated with the Proposed Action could lead to increased fragmentation of individual 

grazing allotments. Fragmentation of the allotments could result in a loss of native shrubland communities and 

decrease available forage. The effects of fragmentation could be compounded by the frequency of drought 

and the introduction and spread of noxious and invasive weed species. Historically, grazing allotment 

utilization has been affected by drought, which has led to decreases in stocking rates. 

The direct surface impacts and indirect impacts described above also have the potential to increase grazing 

pressure on undisturbed sections of grazing allotments. As disturbed portions of the grazing allotment become 

unavailable for grazing, the grazing pressure on the rest of the undisturbed portions of the allotment could 

increase. Depending on the seasonal timing of the disturbances, the length of time disturbed areas are 

unavailable, and the current grazing management, the undisturbed portions of the individual allotments 

potentially could be over-utilized, leading to further decreases in forage and potential reductions in stocking 

rates. 

Impacts to rangelands would be minimized by adherence to the Utah BLM Rangeland Health Standards, as 

required by the Vernal RMP (BLM 2008b) and the implementation of the Reclamation Plan (Appendix E) and 

the Integrated Weed Management Plan (Appendix J). The BLM has developed the Utah BLM Rangeland 

Health Standards, which include the Fundamentals of Rangeland Health and its companion rules, the 

Standards for Rangeland Health and Guidelines for Grazing Management for BLM in Utah, included as 

Appendix F of the BLM Vernal RMP (BLM 2008b). The Fundamentals of Rangeland Health outline the 

conditions that must exist on BLM lands. These include: 

1) Properly functioning watersheds or significant progress toward being properly functioning; 

2) Maintained ecological process or significant progress toward them being maintained; 

3) Water quality complies with state water quality standards, and meets or is making significant progress 

toward meeting BLM management objectives; and 

4) Threatened and endangered species habitat is being restored and maintained or is making significant 

progress toward being restored and maintained. 

Utah Standards for Rangeland Health address four conditions that must be met in order to achieve the 

Fundamentals of Rangeland Health. These include soil productivity, riparian/wetland function, desired species 

composition, and water quality standards. Utah Guidelines for Grazing Management include management 

practices that can be applied to achieve Utah’s standards. 

KMG would implement interim and final reclamation techniques as defined in the Reclamation Plan 

(Appendix E) and the Integrated Weed Management Plan (Appendix J) to stabilize the growth media, reduce 

soil erosion, and minimize the potential for the establishment of noxious weeds and invasive species. 

Reclamation, as described in the Reclamation Plan (Appendix E), would occur in three steps (short-term, 

interim, and final) depending on the project phase. Short-term reclamation of disturbed areas would take place 

as soon as construction starts, interim reclamation would start once construction is completed and production 

activities commence, and final reclamation would commence after production and operation of the project 

ends. During construction, short-term reclamation efforts would seek to stabilize areas that have been 

disturbed, and protect areas adjacent to disturbed areas from further degradation. Interim reclamation would 

occur on areas not needed for production activities, including access road ROWs, portions of well pads, and 

linear features. The focus of interim reclamation would be on stabilizing and revegetating disturbed areas to 

DEIS 4-36 July 2010
create sustainable vegetative communities. The goal of final reclamation, as defined in the Reclamation Plan, 

would be to return the disturbed areas to a pre-construction condition and maintain a stable and productive 

condition compatible with previous land uses. Interim and final reclamation techniques to be implemented 

include the control and monitoring on noxious weeds after surface disturbance, erosion techniques to control 

stormwater runoff and wind erosion, and adherence with all applicable federal, state, county, and BLM 

regulations. If successful reclamation is achieved, and the re-established vegetation cover is determined to be 

considered capable of supporting grazing, livestock grazing could be resumed in disturbed areas. It is 

estimated that successful reclamation would take at least 10 years, and it potentially would be problematic in 

the desert shrub and perennial grasslands/sagebrush communities (BLM 2008c). See Section 4.11.2.1 for a 

definition of successful reclamation and a detailed discussion of the challenges to achieving successful 

reclamation in the GNBPA. 

The combined effects of direct and indirect impacts could impact the ability of livestock operators to maintain 

livestock operations, potentially resulting in individual allotments becoming non-functional (i.e., the allotment is 

no longer able to support livestock grazing). 

Rangeland Improvements/Facilities

Conceptual surface disturbance footprints were created to determine existing well locations and where 

additional wells may be placed. Table 4.6-3 lists 26 range improvements on BLM grazing allotments that could 

be directly removed or disturbed as a result of surface disturbance activities under the Proposed Action 

Alternative. No range improvement information was provided for the BIA grazing allotments. Direct impacts to 

rangeland improvements/facilities would include potential damage to fences, gates, and cattleguards, resulting 

in the accidental release of livestock. Depending on their location in relation to project facilities, rain gauges 

could be damaged. Water sources could be damaged, displaced, or drained due to construction and 

production activities. Water quality in ponds and reservoirs could be impacted as a result of erosion from 

construction activities. Due to the semi-arid climate and lack of reliable water sources in much of the GNBPA, 

the loss or damage to rangeland water sources and/or decreases in water quality could reduce the areas 

available for grazing. Without a reliable water source, many areas currently available for grazing would not be 

able to support livestock. This could lead to further fragmentation of the grazing allotment and/or impact the 

ability of livestock operators to maintain current operations. 

Table 4.6-3 Range Improvements Potentially Impacted Under the Proposed Action 

Grazing Allotment Name/ 

Range Improvement per Allotment 

Legal Location 

Meridian Township Range Section Subdivision 

Coyote Wash 

Twin Ponds South Salt Lake 009S 023E 3 NENW 

CIG Pipeline Reservoir #5 Salt Lake 009S 023E 24 SWSW 

CIG Pipeline Reservoir #6 Salt Lake 009S 024E 29 NWNE 

Olsen AMP 

Triangle Antelope Guzzler Salt Lake 010S 022E 33 NWNW 

North Olsen Allotment Res. #1 Salt Lake 010S 022E 19 SESW 

North Archy Bench Guzzler Salt Lake 010S 022E 35 NESE 

Olsen Res. #2 Salt Lake 011S 022E 9 NESW 

Olsen Res. #6 Salt Lake 011S 022E 4 NENW 

Olsen Res. #7 Salt Lake 011S 022E 4 SWSE 

Olsen Res. #8 Salt Lake 011S 022E 21 NWNW 

Cotton Antelope Guzzler Salt Lake 011S 022E 7 SWSE 

DEIS 4-37 July 2010
Table 4.6-3 Range Improvements Potentially Impacted Under the Proposed Action 

Grazing Allotment Name/ 

Range Improvement per Allotment 

Legal Location 

Meridian Township Range Section Subdivision 

Sand Wash 

West Cottonwood Res. Salt Lake 011S 021E 5 NWSE 

Twelve Mile Knoll Res. Salt Lake 011S 021E 1 NWSW 

West Bench Reservoir Salt Lake 011S 021E 17 SWNW 

Uinta Badlands Res. #1 Salt Lake 010S 020E 35 NWNW 

Uinta Badlands Res. #2 Salt Lake 011S 021E 7 SWNE 

Sand Wash Alternative Res. #1 Salt Lake 010S 021E 21 SESE 

Sand Wash Alternative Res. #2 Salt Lake 010S 021E 23 SWNE 

Sand Wash Alternative Res. #3 Salt Lake 010S 021E 26 SWSE 

Sand Wash Alternative Res. #4 Salt Lake 010S 021E 35 SWSE 

Sand Wash Alternative Res. #5 Salt Lake 010S 021E 14 SWNE 

Sand Wash Alternative Res. #6 Salt Lake 010S 021E 15 SWSW 

Sand Wash Alternative Res. #7 Salt Lake 010S 021E 3 SWNW 

Sand Wash Alternative Res. #8 Salt Lake 010S 021E 7 NWNE 

North Cottonwood Antelope Guzzler Salt Lake 011S 021E 4 NWSW 

Natural Buttes West Boundary Fence Salt Lake 009S 020E 26 NWNW 

4-38

4.6.2.2 Mitigation and Mitigation Effectiveness 

The following additional mitigation measures would reduce residual impacts associated with range resources: 

RANGE-1: During the APD permitting process, surveys would be conducted to identify active range 

improvements, including livestock and wildlife water sources/systems, sheep lambing areas, and 

shearing areas in coordination with the BLM and the livestock operators. Based on the results of 

these surveys, no roads, well pads, construction/production facilities, or linear facilities would be 

placed within 200 meters of range improvements, including livestock and wildlife water 

sources/systems. If avoidance is not feasible, features would be relocated to an alternate location 

per the SMA or AO guidance. 

RANGE-2: Project activities would be coordinated to minimize conflicts with ranching operations. This would 

include conducting an annual meeting with the BLM and livestock operators to discuss the 

upcoming year’s development activities, identify potential issues, and determine potential 

corrective actions by either the livestock permittee and/or proponent; establish effective and 

frequent communication with affected permittees during the year; and schedule project activities to 

minimize potential disturbance of livestock activities. Communication of development activities 

would occur during July of each year, which would allow sufficient time for the livestock operators 

to plan for their upcoming grazing, lambing, and shearing seasons. 

RANGE-3: Damage to livestock and livestock facilities would be reported as quickly as possible to the BLM 

and affected livestock operators. Operators would develop and employ prevention measures to 

avoid damaging fences, gates, and cattleguards, including upgrading cattleguard gate widths and 

load-bearing requirements and fencing all open pits and cellars. Additional guidance on road 

design can be found in BLM Manual 9113 – Roads; additional fencing standards can be found in 

the BLM Handbook 1741-1. See Appendix K, Range Improvement Specifications and Design 

Drawings, for more specific guidelines from the BLM Vernal BLM Field Office.

DEIS July 2010
RANGE-4: If partial or complete removal of the existing Natural Buttes West Boundary fence (T9S R20E 

Section 26) cannot be avoided, the fence would be braced and tied off per the BLM guidance. 

Where the fence is crossed by a road, the fence would be braced and a cattleguard and gate 

installed per BLM guidance. 

RANGE-5: On allotments where open range lambing occurs, no development would occur within a 0.5-mile 

buffer of active lambing areas during the lambing season (April 1 to June 1). 

RANGE-6: Speed limits would be followed and signs would be erected in lambing/calving areas, shipping 

pastures, or adjacent to working corrals to warn vehicle operators. 

The mitigation measures outlined above would address many of the impacts that could result from the 

Proposed Action. Mitigation measure RANGE-1 would provide location information about areas of concern that 

may require further mitigation measures and would minimize impacts to water-related range improvements. 

Mitigation measure RANGE-2 would facilitate communication between livestock operators and the applicant, 

providing livestock operators with the ability to plan their livestock activities around construction operations to 

minimize impacts. Mitigation measures RANGE-3 and RANGE-4 would be the most effective means of 

mitigating impacts to range improvements and the Natural Buttes West Boundary. Mitigation measure 

RANGE-5 would decrease lamb mortality by minimizing disturbance, especially noise, in and around active 

lambing areas. Mitigation measure RANGE-6 would promote awareness of areas of concern for livestock. 

Even with the implementation of the above mitigation measures, impacts may not be sufficiently reduced to 

maintain the functionality of the allotments. An allotment becomes non-functional when it is no longer able to 

support grazing. The decision on whether an allotment is no longer functional will be made by the permittee 

and the BLM during the grazing allotment permit renewal process or any allotment evaluation determined 

necessary by the BLM. 

4.6.2.3 Residual Impacts 

Allotments (AUMs)

Residual impacts to allotments and AUMs under the Proposed Action Alternative could include: 

• Total incremental loss of 11,966 acres of available forage and 1,018 AUMs over the life of the project; 

• Establishment of noxious weed and invasive species individuals or populations, which could remain 

over the long term regardless of control programs, thus potentially resulting in the reduction of 

available forage; 

• Reduction in the amount of available forage near roads due to fugitive dust making vegetation 

unpalatable; and 

• Increased number of vehicle/livestock collisions due to the increased number and density of roads. 

Rangeland Improvements/Facilities

Residual impacts would result from the destruction or relocation of range facilities due to the placement of well 

pads, roads, or pipelines. As range facilities damaged during the life of the project would be repaired, there 

would be no residual impacts from damaged facilities. 

4.6.3 Resource Protection Alternative 

The Resource Protection Alternative would be similar to the Proposed Action, except that it would limit the 

maximum number of new well pad locations to 1 pad per 40 acres (maximum of 16 well pads per section). 

Based on proposed activities identified in Chapter 2.0, the same number of new wellbores as under the 

DEIS 4-39 July 2010
Proposed Action (3,675) would be constructed and operated at a rate of 358 wells per year over a 10-year 

timeframe, including associated infrastructures (e.g., compressor stations, gathering pipelines, access roads). 

4.6.3.1 Impacts on Range Resources 

Allotments (AUMs)

Table 4.6-4 identifies the acreage of disturbance per allotment, the number of livestock AUMs per allotment, 

and percentage of AUMs that could be lost as a result of implementation of the proposed project under the 

Resource Protection Alternative. Based on approximately 7,702 acres of surface disturbance within portions of 

the 12 grazing allotments, 655 AUMs would be lost over the life of the project. This would be approximately 

4,264 acres and 363 AUMs less than under the Proposed Action Alternative. Anticipated impacts would be 

similar to those described in the Proposed Action, but decreased in magnitude. Recovery timeframes and 

minimization and mitigation measures would be the same as described for the Proposed Action. 

Table 4.6-4 Carrying Capacity Impacts by Allotment Under the Resource Protection Alternative

Total Total Percent Loss of 

Grazing Allotment

Name

Allotment

Acreage 

Allotment 1 Active AUMs

Allotment Acreage 

Disturbed in GNBPA

Projected Active AUMs 

Lost in GNBPA2

Total Active

AUMs

Antelope Draw 61,530 3,976 149 10 ≤1 

Coyote Wash 99,290 9,554 1,082 104 1.1

Olsen AMP 134,306 12,144 1,840 166 1.4

Sand Wash 75,136 7,974 2,567 272 3.4 

Seven Sisters 19,285 2,348 430 53 2.2

Southam Canyon 13,827 1,357 20 2 ≤1 

Thorne-Ute Broome 5,436 400 4 ≤1 ≤1 

White River Bottoms 12,900 885 27 2 ≤1 

BLM TOTAL 421,710 38,638 6,119 609 --

Cottonwood Wash 7,486 168 374 8 4.9

Molly’s Nipple 10,742 400 526 20 4.9

Chapita Grove 11,330 311 142 4 1.3

North White River 18,960 485 541 14 2.9

BIA TOTAL 48,518 1,364 1,583 46 --

GRAND TOTAL 470,228 40,002 7,7023 655 --

1

 An AUM represents the quantity of forage necessary to sustain 1 cow-calf pair or 5 sheep for 1 month. 

2

 Projected active AUMs lost and percent active AUM loss were calculated based on a percentage of the stocking rate within the surface disturbance-related 

impact area compared to the allotment stocking rate as a whole. 3

 Formal grazing allotments do not exist for 445 acres disturbed under the Resource Protection Alternative; therefore, this acreage total does not equal the 

number of new surface disturbance.

Rangeland Improvements/Facilities

Conceptual surface disturbance footprints were created to determine existing well locations and where 

additional wells may be placed. Due to the reduced disturbance under the Resource Protection Alternative, 

15 range improvements on BLM grazing allotments could be directly removed or disturbed as a result of 

surface disturbance activities, representing 11 fewer range improvements impacted as compared to the 

Proposed Action (Table 4.6-5). Recovery timeframes and minimization and mitigation measures would be the 

same as described for the Proposed Action. 

DEIS 4-40 July 2010
Table 4.6-5 Range Improvements Impacted Under the Resource Protection Alternative 

Grazing Allotment Name/ 

Range Improvement per Allotment 

Legal Location 

Meridian Township Range Section Subdivision 

Coyote Wash

Twin Ponds South Salt Lake 009S 023E 3 NENW 

CIG Pipeline Res. #6 Salt Lake 009S 024E 29 NWNE 

Olsen AMP 

North Olsen Allotment Reservoir #1 Salt Lake 010S 022E 19 SESW 

Olsen Res. #2 Salt Lake 011S 022E 9 NESW 

Olsen Res. #7 Salt Lake 011S 022E 4 SWSE 

Olsen Res. #8 Salt Lake 011S 022E 21 NWNW 

Cotton Antelope Guzzler Salt Lake 011S 022E 7 SWSE 

Sand Wash 

Twelve Mile Knoll Res. Salt Lake 011S 021E 1 NWSW 

West Bench Res. Salt Lake 011S 021E 17 SWNW 

Uinta Badlands Res. #1 Salt Lake 010S 020E 35 NWNW 

Uinta Badlands Res. #2 Salt Lake 011S 021E 7 SWNE 

Sand Wash Alternative Res. #1 Salt Lake 010S 021E 21 SESE 

Sand Wash Alternative Res. #2 Salt Lake 010S 021E 23 SWNE 

Sand Wash Alternative Res. #3 Salt Lake 010S 021E 26 SWSE 

Sand Wash Alternative Res. #4 Salt Lake 010S 021E 35 SWSE 

4.6.3.2 Mitigation and Mitigation Effectiveness 

Mitigation measures RANGE-1 through RANGE-6, as presented under the Proposed Action, also would 

reduce residual impacts to range resources as a result of project implementation under the Resource 

Protection Alternative. Due to the wider well spacing of the Resource Protection Alternative and the avoidance 

of riparian and wetland areas, the implementation of the mitigation measures likely would maintain grazing 

allotment functionality. 

4.6.3.3 Residual Impacts 

Allotments (AUMs)

Residual impacts to allotments and AUMs could include: 

• Total incremental loss of 7,702 acres of available forage and 655 AUMs over the life of the project; 

and 

• Establishment of noxious weed and invasive species individuals or populations that could remain over 

the long term regardless of control programs, thus potentially resulting in the reduction of available 

forage. 

Range Improvements/Facilities

Residual impacts would result from the destruction or relocation of range facilities due to the placement of well 

pads, roads, or pipelines. As range facilities damaged during the life of the project would be repaired, there 

would be no residual impacts from damaged facilities. 

4.6.4 Optimal Recovery Alternative 

Under the Optimal Recovery Alternative, 13,446 wells would be constructed and operated at a rate of 

672 wells per year over a 20-year timeframe, including associated infrastructures (e.g., compressor stations, 

DEIS 4-41 July 2010
gathering pipelines, access roads). This alternative is designed to maximize recovery of the gas resource by 

increasing the number of wellbores to achieve 10-acre surface and downhole spacing throughout the GNBPA. 

4.6.4.1 Impacts on Range Resources 

Allotments (AUMs)

Table 4.6-6 identifies the acreage of disturbance per allotment, the number of livestock AUMs per allotment, 

and percentage of AUMs that could be lost as a result of implementation of the project under the Optimal 

Recovery Alternative. Based on approximately 40,290 acres of surface disturbance within portions of the 

12 grazing allotments, 3,425 AUMs would be lost over the life of the project. This would be approximately 

28,324 acres and 2,407 AUMs more than under the Proposed Action. While the types of impacts would be 

similar to the Proposed Action, as surface disturbance acreage increases, the magnitude of impacts also 

would increase. The loss of forage, spread of noxious and invasive weed species, and fragmentation would be 

greater under this alternative. Recovery timeframes, as well as minimization and mitigation measures, would 

be the same as described for the Proposed Action. 

Table 4.6-6 Carrying Capacity Impacts by Allotment Under the Optimal Recovery Alternative

Total Projected Active Percent Loss of 

Grazing Allotment Name

Allotment

Acreage

Total Allotment 

1 Active AUMs

Allotment Acreage 

Disturbed in GNBPA

AUMs Lost in

GNBPA2

Total Active

AUMs

Antelope Draw 61,530 3,976 779 50 1.3

Coyote Wash 99,920 9,554 5,660 545 5.7

Olsen AMP 134,306 12,144 9,626 870 7.2

Sand Wash 75,136 7,974 13,429 1,425 17.9 

Seven Sisters 19,285 2,348 2,252 274 11.7

Southam Canyon 13,827 1,357 98 10 ≤1 

Thorne-Ute Broome 5,436 400 21 2 ≤1 

White River Bottoms 12,900 885 142 10 1.1

BLM TOTAL 421,710 38,638 32,007 3,186 --

Cottonwood Wash 7,486 168 1,958 44 25.9

Molly’s Nipple 10,742 400 2,754 102 25.5

Chapita Grove 11,330 311 744 21 6.6

North White River 18,960 485 2,827 72 15.0

BIA TOTAL 48,518 1,364 8,283 239 --

GRAND TOTAL 470,228 40,002 40,2903 3,425 --

1 An AUM represents the quantity of forage necessary to sustain 1 cow-calf pair or 5 sheep for 1 month. 2 Projected active AUMs lost and percent active AUM loss were calculated based on a percentage of the stocking rate within the surface disturbance-related 

impact area compared to the allotment stocking rate as a whole. 3 Formal grazing allotments do not exist for 2,330 acres disturbed under the Optimal Recovery Alternative; therefore, this acreage total does not equal the 

number of new surface disturbance.

Rangeland Improvements/Facilities

Conceptual surface disturbance footprints were created to determine existing well locations and where 

additional wells may be placed. Due to the additional disturbance under the Optimal Recovery Alternative, 

27 range improvements on BLM allotments could be directly removed or disturbed as a result of surface 

disturbance activities, resulting in impacts to all the range improvements located within the GNBPA 

(Table 4.6-7). Recovery timeframes and minimization and mitigation measures would be the same as 

described for the Proposed Action Alternative. 

DEIS 4-42 July 2010
Table 4.6-7 Range Improvements Impacted Under the Optimal Recovery Alternative 

Grazing Allotment Name/Range Improvement 

per Allotment 

Legal Location 

Meridian Township Range Section Subdivision 

Coyote Wash

Twin Ponds South Salt Lake 009S 023E 3 NENW 

CIG Pipeline Res. #5 Salt Lake 009S 023E 24 SWSW 

CIG Pipeline Res. #6 Salt Lake 009S 024E 29 NWNE 

Olsen AMP

Triangle Antelope Guzzler Salt Lake 010S 022E 33 NWNW 

North Olsen Allotment Res. #1 Salt Lake 010S 022E 19 SESW 

North Olsen Allotment Res. #2 Salt Lake 010S 022E 30 NWNE 

North Archy Bench Guzzler Salt Lake 010S 022E 35 NESE 

Olsen Res. #2 Salt Lake 011S 022E 9 NESW 

Olsen Res. #6 Salt Lake 011S 022E 4 NENW 

Olsen Res. #7 Salt Lake 011S 022E 4 SWSE 

Olsen Res. #8 Salt Lake 011S 022E 21 NWNW 

Cotton Antelope Guzzler Salt Lake 011S 022E 7 SWSE 

Sand Wash 

West Cottonwood Res. Salt Lake 011S 021E 5 NWSE 

Twelve Mile Knoll Res. Salt Lake 011S 021E 1 NWSW 

West Bench Res. Salt Lake 011S 021E 17 SWNW 

Uinta Badlands Res. #1 Salt Lake 010S 020E 35 NWNW 

Uinta Badlands Res. #2 Salt Lake 011S 021E 7 SWNE 

Sand Wash Alternative Res. #1 Salt Lake 010S 021E 21 SESE 

Sand Wash Alternative Res. #2 Salt Lake 010S 021E 23 SWNE 

Sand Wash Alternative Res. #3 Salt Lake 010S 021E 26 SWSE 

Sand Wash Alternative Res. #4 Salt Lake 010S 021E 35 SWSE 

Sand Wash Alternative Res. #5 Salt Lake 010S 021E 14 SWNE 

Sand Wash Alternative Res. #6 Salt Lake 010S 021E 15 SWSW 

Sand Wash Alternative Res. #7 Salt Lake 010S 021E 3 SWNW 

Sand Wash Alternative Res. #8 Salt Lake 010S 021E 7 NWNE 

North Cottonwood Antelope Guzzler Salt Lake 011S 021E 4 NWSW 

Natural Buttes West Boundary Fence Salt Lake 009S 020E 26 NWNW 

4.6.4.2 Mitigation and Mitigation Effectiveness 

While mitigation measures RANGE-1 to RANGE-6, as presented under the Proposed Action, would reduce 

residual impacts to range resources as a result of project implementation under the Optimal Recovery 

Alternative, they may not sufficiently reduce impacts to maintain the functionality of individual grazing 

allotments. A non-functional grazing allotment would not be able to support livestock grazing. The decision on 

whether an allotment is no longer functional will be made by the permittee and the BLM during the grazing 

allotment permit renewal process. 

4.6.4.3 Residual Impacts 

Allotments (AUMs)

Residual impacts to allotments and AUMs could include: 

• Total incremental loss of 40,290 acres of available forage and 3,425 AUMs over the life of the project; 

• Establishment of noxious weed and invasive species individuals or populations that could remain over 

the long term regardless of control programs, thus potentially resulting in the reduction of available 

forage; and 

DEIS 4-43 July 2010
• Potential for grazing allotments to become unsustainable for grazing, which could result in a reduction 

in AUMs, renegotiation of allotment lease terms, and “non-use” requests from the BLM. This could 

impact the ability of livestock operators to maintain their livestock operations. 

Range Improvements/Facilities

Residual impacts would result from the destruction or relocation of range facilities due to the placement of well 

pads, roads, or pipelines. As range facilities damaged during the life of the project would be repaired, there 

would be no residual impacts from damaged facilities. 

4.6.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Short-term impacts to range resources would include displacement of livestock from preferred grazing areas; 

the loss of available active AUMs; interference with livestock management due to placement of surface 

pipelines; complete or partial removal of range improvement features (e.g., fencing and stock water facilities) 

during the construction period; the potential for increased vehicle-livestock collisions; and increases in the 

spread of noxious and invasive weeds, specifically halogeton. Long-term impacts would include very slow 

revegetation rates, low revegetation success in herbaceous and shrub-dominated vegetative communities 

after disturbance, and the spread and establishment of noxious and invasive weed species, specifically 

halogeton. These factors could lead to the long-term loss of available forage and continued reductions in 

available AUMs until such time that reclamation is deemed successful. In addition, both short-term and 

long-term impacts could result in individual allotments becoming non-functional. 

4.6.6 Irreversible/Irretrievable Commitment of Resources 

The loss of forage from surface disturbances would be an irretrievable commitment of resources during the 

lifetime of the project for the No Action Alternative and the three action alternatives. If reclamation is 

successful, no irreversible commitments are anticipated for range resources under any of the action 

alternatives. The loss of forage under all of the action alternatives would be irreversible if disturbed areas could 

not be restored to prior land uses due to unsuccessful reclamation. 

Under the Proposed Action and Optimal Recovery Alternative, there is potential for grazing allotments to 

become non-functional, and livestock operators to be lost during the life of the project. This would be an 

irretrievable and potentially irreversible commitment of resources for those allotments. 

DEIS 4-44 July 2010
4.7 Recreation 

Primary recreational activities in this area are associated with hunting, fishing, rafting, hiking, and OHV use. 

Peak recreational use of the White River typically occurs from mid-May to mid-June; however, recreational 

activities on the White River persist through the summer and fall months as well. 

4.7.1 No Action Alternative 

Under the No Action Alternative, drilling and completion of development wells and infrastructure would 

continue under the authority and COAs of existing NEPA document decisions, as well as applicable state and 

county conditions. Resource protection would be provided by mitigation under those previous NEPA 

documents, lease stipulations, and site-specific review. 

4.7.1.1 Impacts on Recreation 

Recreational access would increase as more roads would be built to support construction of previously 

approved wells. As detailed in Section 3.7, the area is not highly regarded for its hunting opportunities; the 

impacts to hunting would be negligible. Recreational activities on the White River, such as rafting and fishing, 

potentially would be affected by visual detractions caused by oil and gas activities. 

4.7.2 Proposed Action Alternative 

Under the Proposed Action Alternative, 3,675 wells would be constructed and operated at a rate of 358 wells 

per year over a 10-year timeframe, including associated infrastructures (e.g., compressor stations, gathering 

pipelines, access roads). KMG would implement development using environmental protection measures 

consistent with the ACEPMs (Appendix A) and the Reclamation Plan (Appendix E). 

4.7.2.1 Impacts on Recreation 

New roads would enhance OHV opportunities as well as access to recreational areas; however, new drill rigs, 

increased traffic, and other activities associated with oil and gas development may limit or alter the experience 

of recreational users. 

Recreational activities would be less impacted within the GNBPA in areas that already have an existing oil and 

gas infrastructure and transportation network. Oil and gas development has been present in portions of the 

GNBPA since the 1950s. In these areas, it is expected that the impact to recreation would be limited. 

In areas where potential new access roads and facilities would be built to service new well development, a 

greater impact to recreation potentially would occur. For instance, OHV access would increase as these new 

roads would be constructed. Although recreational opportunities likely would be expanded by new access, the 

presence of increased traffic and oil and gas facilities would balance any perceived gains by new access. 

Dispersed camping also would be impacted as there would be less available acreage. 

Recreational use of the White River is heavy on the 32-mile stretch from the Bonanza Bridge to the Enron 

take-out, with most river recreation occurring from mid-May to mid-June. The quality of recreational activities 

on the White River would be reduced if visual and noise resources were impaired. In order to preserve the 

quality of recreational activities on the White River, well pads would not be developed within line of sight up to 

0.5 mile from the White River centerline, and would be set back 600 feet from the edge of the White River on 

Tribal Land (Appendix A). This is consistent with the RMP stipulation of NSO within line of sight from the 

centerline of the White River, up to 0.5 mile on either side of the river within the White River SRMA. 

It is anticipated that the Proposed Action Alternative would have a minor impact on big game hunting within the 

GNBPA. As discussed in Section 4-14, habitat for pronghorn, the most common big game species within the 

GNBPA, is extremely widespread. The Proposed Action Alternative would lead to a small decrease in the total 

habitat and hunting opportunities for pronghorn. This limited reduction in hunting opportunities likely would 

DEIS 4-45 July 2010
occur during the development period of the project. The majority of the GNBPA lies within the bounds of the 

Book Cliffs Game Management Unit. Since this unit is a limited entry area, hunting pressure is already less 

than in the surrounding regions. Hunting opportunities for other big game species such as mule deer and elk 

are not substantial due to the small amount of suitable habitat for these species within the GNBPA. 

4.7.2.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Proposed Action Alternative. 

4.7.2.3 Residual Impacts 

Residual impacts due to the implementation of the Proposed Action Alternative would include an expanded 

road network within the GNBPA as well as increased traffic and potentially impaired visual resources. These 

impacts would decrease in the long term, as facilities are decommissioned and portions of the GNBPA are 

reclaimed. 

4.7.3 Resource Protection Alternative 

The Resource Protection Alternative would be similar to the Proposed Action Alternative, except that it would 

place a limit on the maximum number of new well pad locations to 1 pad per 40 acres (maximum of 16 well 

pads per section). Based on proposed activities, 3,675 new wellbores would be constructed and operated at a 

rate of 358 wells per year over a 10-year timeframe, including associated infrastructures (e.g., compressor 

stations, gathering pipelines, access roads). 

4.7.3.1 Impacts on Recreation 

Fewer well pad locations associated with the Resource Protection Alternative would result in less surface 

development and impact on visual resources than the Proposed Action Alternative. This alternative would 

nonetheless lead to a net increase in traffic, surface development, and impacts to visual resources. 

4.7.3.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Resource Protection Alternative. 

4.7.3.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for this 

alternative. 

4.7.4 Optimal Recovery Alternative 

Under the Optimal Recovery Alternative, 13,446 wells would be constructed and operated at a rate of 

672 wells per year over a 20-year timeframe, including associated infrastructures (e.g., compressor stations, 

gathering pipelines, access roads). This alternative is designed to maximize recovery of the gas resource by 

increasing the number of wellbores to achieve 10-acre surface and downhole spacing throughout the GNBPA. 

4.7.4.1 Impacts on Recreation 

The Optimal Recovery Alternative would result in the greatest impacts to recreation. The existing road network 

would greatly expand by the addition of 1,627 miles of new roads, traffic on the existing and new roads would 

increase markedly, and visual aesthetics would be impacted. 

4.7.4.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Optimal Recovery Alternative. 

DEIS 4-46 July 2010
4.7.4.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for this 

alternative. 

4.7.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Recreational access would be disrupted during the project development stage as roads are opened and 

closed to facilitate construction. Furthermore, hunting and dispersed camping opportunities would be impaired 

in the short term as well as visual aesthetics; however, in the long term as the area is reclaimed, visual 

aesthetics and hunting opportunities would both be restored. 

4.7.6 Irreversible/Irretrievable Commitment of Resources 

Loss and/or incremental reduction of hunting and dispersed camping opportunities would be an irretrievable 

loss, but reversible after reclamation. Additionally, loss and/or incremental reduction of visual aesthetics from 

the White River would be an irretrievable loss, but reversible after reclamation. 

DEIS 4-47 July 2010
4.8 Socioeconomics and Environmental Justice 

The focus of the socioeconomics assessment is on potential impacts to employment, population, income; 

housing and public facilities and services; and local government fiscal conditions. The alternatives also 

potentially would affect residents of the local study area in terms of satisfaction with their community life. The 

socioeconomics analysis is tied to the assessment of impacts to cultural resources (Section 4.2), rangeland 

(Section 4.6), and recreation (Section 4.7). 

Key Project Development Drivers for the Socioeconomic Assessment

Five aspects of the project affect project spending: the number of wells drilled, the anticipated productive life of 

completed wells, future investment in field level compression, treating and processing capacity for natural gas, 

and the costs of on-going operations. KMG provided estimates of spending levels for each major activity, with 

the development and operating costs provided on a per well basis. 

The alternatives differ in two primary ways: first, the pace, duration, and intensity of development and second, 

the projected level of gas and oil production over time. The production phase for each alternative is effectively 

39 years beyond completion of the last well (this being the approximate economic life of individual wells). 

Chapter 2.0 describes the level of current development and projected level and pace of development for each 

alternative. KMG provided a profile of gas and oil production over time for three types of wells developed from 

production information for existing wells in the region. That profile assumes economic recovery ranging from 

0.96 Bcf to 1.28 Bcf of gas and 3,000 to 20,000 barrels of oil condensates over the life of a well. Actual 

production would vary dramatically between individual wells. Per well production profiles were combined with 

future development schedules to generate the aggregate production schedule for the field as a whole. 

Figure 4.8-1 and Table 4.8-1 summarize the production forecasts for the project alternatives. 

0

100

200

300

400

500

600

700

1 6 11 16 21 26 31 36 41 46 51 56 61

Years

Billions of Cubic Feet

No Action

Proposed Action &

Resource Protection

Optimal Recovery

Figure 4.8-1 Projected Natural Gas Production for the Project Alternatives 

DEIS 4-48 July 2010
Table 4.8-1 Projected New Wells and Total Projected Natural Gas and Oil Condensate Production 

No Action 

Alternative 

Proposed 

Action 

Alternative 

Resource 

Protection 

Alternative 

Optimal 

Recovery 

Alternative 

Number of New Wells 1,102 4,7771 4,7771 14,5481

Natural Gas Recovery (Tcf) 1.41 6.07 6.07 15.44 

Oil Condensates Produced (million 

barrels [MMbl]) 

22.3 86.5 86.5 117.9 

1

 Includes action alternative plus No Action Alternative. 

Total projected resource recovery ranges from 1.41 Tcf of natural gas and 22.3 MMbl of oil condensates under 

the No Action Alternative to 15.44 Tcf and 117.9 MMbl of oil condensates under the Optimal Recovery 

Alternative. 

Table 4.8-2 shows the project spending drivers for the analysis. This approach produces a profile of project 

spending based on project activity levels in each year. As a simplifying assumption, this analysis assumes 

year round new well development activities. 

Table 4.8-2 Project Spending Assumptions, All Alternatives 

Cost (2006 $) 

Drilling, Completion and Gathering – per well 

 Materials $ 470,100

 Labor and Services $ 1,184,300

 Sub-Total $ 1,654,400

Field compression, processing, and treating – lump sum 

 Materials $ 414,250,000

 Labor and Services $ 105,000,000

Sub-Total $ 519,250,000

Field Production and Operations – average/producing well/year 

Sub-Total1 (labor, services [including periodic workovers], materials and supplies) $ 26,900

1

 Inclusive of labor, services (including periodic workovers), materials, and supplies. 

Development of a typical well in the GNBPA spans approximately 49 days from access road and pad 

construction through installation of surface production facilities. Installation and connection of gathering lines 

can require up to 6 days, although some of that time may run concurrently with other activities. Interim 

reclamation typically requires another 5 days. On-site employment at an individual well varies over time with a 

peak of 40 employees and averaging 10 employees over the 60-day period, assuming development activities 

run consecutively. Figure 4.8-2 illustrates the number of direct on-site workers (including site development, 

drilling, and well completion) over the 60-day time schedule. Project engineers, KMG management, state and 

federal regulatory and resource management staff, and others may occasionally visit an individual wellsite. 

DEIS 4-49 July 2010
0

5

10

15

20

25

30

35

40

45

50

On-site Workers

1 5 9 13 17 21 25 29 33 37 41 45 49 53 57

Day (of 60-day typical schedule)

Figure 4.8-2 Direct On-Site Employment to Develop a Typical Well 

Table 4.8-3 shows the estimated geographic distribution of KMG spending, based on the location of vendors 

and suppliers, not the physical location of the well. The non-local portion of spending reflects purchases of 

equipment and material from suppliers located elsewhere, although many of the commodities ultimately are 

delivered locally and subject to state and local sales or use taxes. 

Table 4.8-3 Geographical Distribution of Spending by Activity, All Alternatives 

Development Activity 

Local 

(Duchesne and Uintah) 

Non-local 

(Utah and Out-of-State) 

Drilling, Completion and Gathering 83% 17% 

Field compression, processing, and treating 9% 91% 

Field Production and Operations 100% 0% 

Economic Region for Analysis and Impact Model

Project spending was analyzed using the IMPLAN economic impact analysis software. IMPLAN is one of 

several widely accepted regional economic models that can be used to estimate the total jobs, income, and 

value added associated with direct employment and investment in drilling, field development and ongoing 

production, processing, and transmission in the region. The IMPLAN software integrates economic data about 

each county in a study area into a representation of the area as a functional economic unit, thereby capturing 

the local trade and commuting interactions that are prevalent due to the structure of the energy industry, to 

produce a series of mathematical relationships to translate the estimates of direct and secondary employment. 

Estimates of the direct investment and employment were derived from information provided by KMG 

(Tables 4.8-2 and 4.8-3 and Figure 4.8-2). The relationship between direct and secondary economic effects, 

often referred to as the multiplier effect, varies by industry and region. Secondary employment consists of the 

DEIS 4-50 July 2010
indirect effects (i.e., jobs with vendors and suppliers supporting the drilling and production activities), and 

induced effects (i.e., jobs supported by consumer expenditures of the direct and indirect employees). 

Economic data for 2006 indicate that each direct job in oil and gas exploration, development, and production in 

the GNBPA supports between 0.5 and 2.1 additional jobs in the regional economy through what is commonly 

referred to as the multiplier effect (Minnesota IMPLAN Group, Inc. 2008). That range is consistent with the 

average of 1.48 additional jobs per direct oil and gas job reported in the 2007 study of the Uinta Basin 

(University of Utah 2007). Differences in the multiplier effects between industries reflect differences in relative 

intensity of labor and capital, wage rates, and the location of support industries in the region. In general, rural 

areas such as the GNBPA with less diversified economies have lower multipliers than do larger, more 

diversified economies. A version of the “model” was calibrated to the two-county area, Uintah and Duchesne, 

where local direct economic effects would occur and where local secondary effects would develop. 

Direct spending by KMG outside of the local study area would support jobs, income, and business activity 

outside the two counties. However the impact of jobs created elsewhere would be small relative to total 

employment in those larger economic regions, and consequently, are not addressed further in this analysis. 

Population and Housing Demand Factors

The population and housing demand impacts of the alternatives are extrapolated from the total employment 

impact. Population is extrapolated using a ratio of population to employment implied by the pre-recession labor 

market and demographic and economic data for the region. Those data supported a 1.6 population-to-job ratio 

(population grows by 1.6 persons per job), which is used for all alternatives. Gross housing demand is 

estimated assuming an overall average housing to-population ratio of 0.62 (in effect, one housing unit per 

1.6 persons), which is used for both counties and for all alternatives. Although local economic and 

demographic conditions have changed in recent months, using assumptions reflecting conditions prior to the 

downturn in energy development portrays the potential scale of population and housing impacts given a return 

to a more favorable energy development climate that promotes renewed development activity akin to that 

which was occurring in 2007 and 2008. Although this approach could overestimate such impacts if the 

Proposed Action is the only new energy development undertaken, the risk of ignoring the pre-recessionary 

conditions would be to underestimate the potential impacts. 

The apportionment of the project-related employment, population, and housing impacts is based on local 

trends since 2000. The geographic distribution for the project-related incremental employment, population, and 

housing growth are presented in Table 4.8-4 and apply uniformly across all alternatives. 

Table 4.8-4 Assumed Geographic Distribution of Project-related Employment, Population, and 

Housing Growth, All Alternatives 

Jurisdiction 

Share of Local Employment 

Impacts 

Share of Population and 

Housing Impact 

Duchesne County 40% 

 Roosevelt City NA 10% 

 Other Duchesne County NA 30% 

Uintah County 60% 

 Vernal City NA 15% 

 Other Uintah County NA 45% 

Fiscal Analysis 

The analysis estimates important revenue streams for the federal government and the State of Utah that would 

be directly impacted by the alternatives: the state severance tax, state royalties on lands managed by the 

USITLA, and Federal Mineral Royalty revenue. The latter is revenue from federal royalties on gas production 

DEIS 4-51 July 2010
from the alternatives, a portion of which is returned to the State. Projected value of future production and the 

derivative calculation of related tax revenues are in constant 2006 dollars, assuming that 97 percent of the 

production is sold at prices of $4.59/Mcf for natural gas and $45/barrel for oil condensates. The basis for the 

$4.59/Mcf commodity price assumption is the 12-month average price for natural gas futures over the next 

year reported by the EIA (USDOE 2010a) at the end of March 2010 and typical wellhead prices received in 

Utah prior to the dramatic price spike in mid-2008. Long-term price forecasts, based on assessments of 

domestic production capacity, transmission capacity, availability of imports, and long-term demand, call for 

price declines through the middle of the decade followed by several years of higher prices, a few years of 

decline, and then long-term increases. The EIA price forecast (Figure 4.8-3) calls for natural gas prices to 

follow the same basic pattern with modest price decreases through 2014, followed by longer-term increases 

with prices reaching $7.68 in 2030 (2007 dollars). 

 Source: USDOE 2009b. 

Figure 4.8-3 Historical and Projected Wellhead Prices for Natural Gas 

Not apparent in the long-term average price trends are short-term price fluctuations that typify energy 

commodity prices. For example, between January 2002 and December 2009, the monthly average domestic 

wellhead price fluctuated between $2.19 and $10.79 per Mcf, unadjusted for inflation, with a mean of 

$5.73/Mcf (USDOE 2010b). More recently, natural gas prices at the wellhead had declined below $4/Mcf 

(3rd Quarter 2009), reflecting weak demand tied to the current economic recession. 

Rising demand for natural gas, driven by economic recovery and factors such as the increased use of natural 

gas for generating electricity, makes it unlikely that long-term average prices would decline and remain at 

recent levels over the long term. At the same time, short-term price fluctuations will continue such that actual 

prices received for production would be higher than the long-term average at times and lower than the 

long-term average at other times. Variances between the actual and the assumed price would result in 

corresponding differences between projected and actual royalties, severance taxes, and property taxes. The 

accrual of future public sector revenue receipts also would depend on the levels and timing of actual 

production, which also are expected to vary from the projected production developed for this analysis. 

Given the uncertainties associated with pricing and production, assuming a constant price across all 

alternatives was considered reasonable, particularly given that the incremental production would not come on 

line for several years and not peak until 10 or more years into the future. Doing so also provides a relative 

comparison of the public sector revenues between the alternatives, absent differences due to assumed 

DEIS 4-52 July 2010
variation in prices. Assuming a long-term average price different from the $4.59/Mcf and $45/barrel would 

affect the aggregate value of public sector revenues. For instance, higher unit prices would translate into 

higher sales derived from oil and gas production and higher public sector revenues, and vice versa. However, 

changes in prices would leave the relative difference between alternatives unaffected, and the aggregate value 

of revenues generated would remain substantial. 

The analysis estimates the fiscal effects of the alternatives to the region’s principal local governments. These 

are extrapolated mainly from the economic impacts and from projections of the value of the gas that is 

produced. Estimates of expenditures for general purpose local government most likely affected by 

development were derived from recent average per capita expenditures. The average expenditures likely 

overestimate the incremental costs to serve population growth. There are many SSDs in the region for which 

estimates were not made. 

4.8.1 No Action Alternative 

Oil and gas operations began in the GNBPA in the 1950s. In 2007, KMG deployed 8 active rigs in the GNBPA. 

To date, 1,562 wells have been completed that are producing or shut-in pending completion of the gathering, 

treatment, and compression facilities to allow delivery into the pipeline network. KMG presently has 

147 employees in the study area in conjunction with its operations, 76 percent of who live in Uintah County, 

20 percent in Duchesne County, and 4 percent elsewhere. 

Without federal approval for additional development in the GNBPA, KMG would limit its activity to development 

approved on BLM-managed lands under existing NEPA documents and to state, Tribal, and fee lands. The No 

Action Alternative assumes 1,102 additional wells over 6 years of development activity through the year 2013. 

That development program would be achieved through the continued deployment of 8 drilling rigs. This 

analysis assumes that existing and committed additional compression, treating, and processing capacity would 

be adequate for the No Action Alternative. Production would continue to approximately 2051 (the actual life of 

field would be determined on future gas prices, the economics of well operations, and other factors that are 

uncertain and beyond the scope of this analysis). Final reclamation and field abandonment activities would 

occur in the latter stages of field life and following the end of all production. The presence of drilling rigs, the 

KMG field office, and existing wells means that the local socioeconomic environment may already have 

internalized some or substantial portions of the effects described in the following analysis. 

4.8.1.1 Impacts on Socioeconomics and Environmental Justice 

The No Action Alternative would result in estimated direct project spending of more than $2.95 billion (2006 

dollars) by KMG for well development and operation.1

 The pattern of spending is illustrated in Figure 4.8-4. Of 

the total expenditures, approximately $1.82 billion would occur during the first 6 years of the project, 2008 to 

2013. Total local spending over the life-of-project is estimated at $2.64 billion.

Total future production under the No Action Alternative, excluding production from existing wells, is estimated 

at 1.41 Tcf of gas and 22.3 million barrels of oil. As depicted in Figure 4.8-5, peak annual production would 

occur 5 to 6 years into the project (2013). Production would decline rapidly thereafter, to less than half the 

peak level within 3 years (2014) and to approximately 10 percent of the peak 12 years later (2023). Production 

would continue through 2051. The estimated value of gas and oil sold into the marketplace (assumed to be 

97 percent of the gross production) would be $7.05 billion in constant 2006 dollars. 

4-53

 

1

 The total includes direct project spending only. KMG prior outlays for leases, development of existing wells and infrastructure, project 

planning and permitting, and internal management and corporate support provided from other offices, as well as future royalties, taxes, 

and other payments to governments and mineral estate owners are not included. 

DEIS July 2010
$0

$50

$100

$150

$200

$250

$300

$350

$400

200820122016

20202024

2028

2032

20362040

2044

20482052

2056

2060

Millions

Development Operating

4-54

$0

$100

$200

$300

$400

$500

$600

$700

$800

2008 2016 2024 2032 2040 2048

Millions

2056

Figure 4.8-4 Direct Project Spending Under the No Action Alternative 

Figure 4.8-5 Market Value of Product Sold, No Action Alternative 

Employment, Income, and Population

Under the No Action Alternative, average total local employment for the 6-year development phase wou

1,460 jobs in the study area (Table 4.8-5); 854 workers employed directly, the remaining 606 indirectly 

supported by the development and consumer expenditures. An estimated 584 of these jobs would be bas

Duchesne County, the remainder in Uintah County. These jobs represent a substantial share of the tota

ld be 

ed in 

l 

regional employment, providing an important source of economic stimulus to the regional economy. 

DEIS July 2010
Table 4.8-5 Employment and Income Impacts, No Action Alternative

Jobs Labor Income 

Development 

 Direct (average annual) 854 $73,940,500

 Secondary (average annual) 606 $12,181,900

 Total 1,460 $86,112,400

Peak during Development 1,790 $97,523,000

Production – Total (average annual) 239 $18,285,400

Residents of the two counties likely would hold many of the direct jobs associated with the No Action 

Alternative, although some may be held by individuals who temporarily relocate to the area. Given the recent 

contractions in the regional economy, the demand for labor associated with No Action Alternative would 

forestall additional job losses and higher unemployment locally, both directly and through its indirect effects on 

retail, service, and other sectors of the economy. 

A temporary peak impact of 1,790 jobs, reflecting a combination of development and production activities, 

would occur in years 2 through 5 of the No Action timetable. Direct employment would decline sharply 

following the completion of development, with attendant declines in secondary employment. Total productionrelated employment during the life of field would average 239 jobs. 

The corresponding income impact of the No Action Alternative, shown in Table 4.8-5, would be an average of 

$86.1 million per year during the development phase, $97.5 million in the peak years, and $18.3 million per 

year during the extended production period. Some of the labor income would leave the local economies, 

especially during the development phase, as a result of jobs held by non-residents. While in the area, these 

workers do contribute to the local economy via their spending for lodging, food, beverages, fuel, clothing, and 

other goods and services. 

The Ute Tribe would realize additional income under the No Action Alternative from its participation in Ute 

Energy and the Chipeta Processing joint-venture. The income would be derived from operating revenues 

associated with the increase in gas volume processed through the gas processing facilities and delivery hub 

operated by the joint venture. 

Based on the underlying relationships between employment, population, and housing, the employment effects 

associated with the No Action Alternative correspond to a resident population of 2,585 and housing demand of 

1,593 housing units during the development phase (Table 4.8-6). Peak population and housing demands 

would be 20 to 25 percent higher. The short-term nature of the peak likely would attract more temporary 

workers and increase demands on temporary housing and lodging accommodations. Much of the growth and 

housing demand has already occurred, contributing to past growth, new residential construction, and upward 

pressure on home prices. The population and housing effects may be overstated due to single-status 

temporary workers who are not accompanied by family members and who live in motels, RVs, or other 

temporary living quarters. 

Long-term population effects and housing demand during the extended production period would be noticeably 

lower than during the development phase. The average net population change during production is estimated 

at 450 residents, with attendant housing demand for 277 units. Absent other new economic activity in the 

region, completion of the No Action development would result in a slowing of growth in the region or possibly 

even some out-migration. The latter would ease pressures on local housing. 

DEIS 4-55 July 2010
Table 4.8-6 Average Population and Housing Demand Impacts, No Action Alternative 

Jurisdiction

Development Production

Population

Housing

Demand Population

Housing

Demand 

Duchesne County

 Roosevelt City 258 159 45 28 

 Other Duchesne County 876 478 135 83 

Duchesne County Total 1,034 637 180 111 

Uintah County

 Vernal City 388 239 67 42 

 Other Uintah County 1,163 717 203 124 

Uintah County Total 1,551 956 270 166 

Grazing

There are 7 permittees currently using grazing allotments in the GNBPA that would be directly affected by 

development under the No Action Alternative. The No Action Alternative would have limited impacts on grazing 

in the GNBPA, resulting in a maximum of 4,447 acres of disturbance and a potential loss of up to 378 AUMs 

per year of available forage in 12 grazing allotments. The approximate impact to future cash receipts from 

livestock production would be approximately $9,072 per year at $24 per AUM. Over the life of the project, an 

estimated average reduction of 318 AUMs per year, having a value of about $7,632 per year, would occur 

under the No Action Alternative.2

 Although the reductions in receipts and income would be low in the context 

of the local farming and ranching sector, such reductions would be in addition to any past effects associated 

with energy development and reductions in grazing associated with extended drought in the region and 

changes in management in response to other factors. The net effect of such impacts could diminish the 

economic value of grazing to an operator, potentially to a point that would render the entire grazing permit 

uneconomical. In such instances, the net economic loss to the individual operator would be greater than the 

incremental loss in AUMs described above. The net loss in agricultural income could then accrue to the overall 

economy unless another operator subsequently applies for and receives the grazing privileges or changes in 

grazing management (e.g., combining the affected allotment with another allotment) are implemented to 

sustain the economic viability of grazing. 

Recreational Use and Tourism

Limited adverse effects on the levels of dispersed recreation, including river, OHV use, and hunting and fishing 

in the GNBPA may result under the No Action Alternative. Such effects may result from the response of 

recreation users to the increased level of industrial activity on the landscape, traffic along access roads, or 

restrictions associated with activity in proximity to facilities. The effects on recreation users could affect 

residents, as well as the parts of the economy that benefit from recreation and cultural tourism. 

Community Facilities and Services

Population growth, housing demand, and associated demands on public facilities and services under the No 

Action Alternative contribute to recent, current, and pending staffing; facility capacity; and service provision 

efforts. These include expansions of water and wastewater systems to accommodate further residential 

development and increased staffing for law enforcement, county road and bridge departments, social services, 

 

2

 The average reflects the assumed pace of new development, an allowance for interim reclamation, a 40-year lag between reclamation 

and re-establishment of adequate forage to support grazing, and a 70-year time horizon. 

DEIS 4-56 July 2010
and other county services. Local road and bridges are impacted by industrial traffic and traffic related to 

general population growth. Local governments face difficulties recruiting and retaining staff due to the high 

wages and salaries available in the private sectors, rising housing costs, and overall demand for labor. Local 

municipal agencies are often constrained to respond to demand in a timely fashion due to their reliance on 

community-based sources of revenue (e.g., sales and property taxes that lag the pace of energy 

development). Administrative facilities generally are adequate to meet current demands. 

Recent and ongoing growth is taxing local fire protection and emergency medical services, particularly in the 

area of staffing. Most of these services are volunteer-based. A common, indirect effect of intense energy or 

mineral resource development is difficulty in recruiting volunteers, in part because the individual job sites are 

often outside of the core community(ies) and also because of the high level of transiency/mobility in the work 

force. Local services also are impacted by an increasing share of new development occurring in 

unincorporated areas of the county. 

The existing Ashley Valley Medical Center in Vernal and Uinta Basin Medical Center in Roosevelt, plus the 

outlying clinics and private health care practices provide health care to residents of the area. Recent growth, 

including that associated with KMG activities, has increased patient loads and benefitted operations of the 

hospitals but strained staffing resources. The No Action Alternative would help sustain demands for another 

4 years, after which growth would slow or decline. 

Both school districts had experienced declining enrollments for a number of years, even as resident population 

grew, providing some measure of available capacity. However, both districts also responded to changes in 

terms of geographic distribution and the needs to update/modernize facilities by recently completing new 

schools. Consequently, the districts are well positioned to accommodate the limited demands associated with 

the No Action Alternative. 

Public Expenditures and Revenues

Public Expenditures. County governments, local municipalities, and SSDs in the region faced rising costs to 

provide services to residents, businesses, and visitors. KMG’s presence in the community and its activities 

under the No Action Alternative contribute to the needs facing these providers. Little new growth is anticipated 

as a result of the No Action Alternative. Order of magnitude estimates of public expenditures of local, 

general-purpose government are presented in Table 4.8-7, based on the average project-related population 

effects shown in Table 4.8-6 and the average annual expenditures of the county and municipal governments. 

The amounts are the average annual and cumulative expenditures (undiscounted) during the 6-year 

development phase. The annual expenditure requirements would be substantially lower during the production 

phase. 

Table 4.8-7 Local Government General Purpose Cost During Development (2006 $), No Action 

Alternative 

Jurisdiction Annual Average Expenditures Cumulative Expenditure 

Duchesne County $1,090,758 $6,544,548 

Roosevelt $333,816 $2,002,898 

Uintah County $1,439,762 $8,638,575 

Vernal $452,075 $2,712,452 

Note: Cost estimates based on average per capita costs that likely overstate the incremental costs to serve population growth. 

Estimated annual expenditures range from approximately $334,000 annually in Roosevelt to $1.44 million for 

Uintah County. The two county governments would face higher costs due to the pattern of substantial 

residential development occurring in unincorporated portions of the county. Cumulative expenditures over the 

DEIS 4-57 July 2010
development period range from $2.0 million for Roosevelt to more than $6.5 million in Uintah County. The 

expenditures generally represent about 5 to 6 percent of current budgeted expenditures. 

Public Revenues. The four primary units of affected local government, along with the two school districts, 

would realize additional revenues in conjunction with the No Action Alternative, either directly or indirectly. 

Despite these revenues, local governments face fiscal challenges due to jurisdictional mismatches between 

tax accrual and the timing of needed expenditures, lags in some revenue flows, and competing demands 

associated with overall growth. The state and local governments also would realize substantial sales and use 

tax revenues (not estimated here) levied on many purchases by KMG, as well as consumer expenditures by 

its employees and those supported indirectly by the project. Uintah County and countywide SSDs are better 

positioned from a fiscal perspective because of past growth in its property tax base due to energy production. 

The municipalities, particularly Roosevelt, rely more heavily on sales tax receipts and are therefore more likely 

to be adversely affected. The local governments also would realize additional revenues from fees and charges 

for services. 

The cumulative value of marketed production over the life-of-field under the No Action Alternative is estimated 

at $7.05 billion. Estimated property taxes accruing to Uintah County and the Uintah School District would 

average about $2.03 million annually, approximately 29 percent of which would accrue to the County and the 

remainder to the school district.3

 Cumulative property tax revenues to the two entities would exceed 

$89 million over the 44-year life of the field (Table 4.8-8). The state and local governments also would realize 

substantial sales and use tax revenues (not estimated here) levied on many purchases by KMG, as well as 

consumer expenditures by its employees and those supported indirectly by the project. 

Table 4.8-8 Selected Major Public Revenues Over the Life of Field, No Action Alternative

Annual Average Cumulative

Value of Marketed Production over the life of the field $160,254,000 $7,051,161,000 

Projected Ad Valorem Tax

 Uintah County $589,000 $25,897,000

 Uintah School District $1,438,000 $63,259,000

 Total $2,029,000 $89,156,000

Utah Severance Taxes $6,148,000 $270,507,000 

Federal and Tribal Mineral Royalties

 Federal and Tribal share $9,498,000 $417,898,000

 State share (49.5% of federal royalties) $4,950,000 $217,781,000

 Distribution of the State share:

 Permanent Community Impact Fund (32.5% base) $1,609,000 $70,779,000

 Utah Dept. of Transportation for SSDs (40%) $1,980,000 $87,112,000

 Other (27.5%)1 $1,361,000 $59,890,000 

 

3

 The Utah Property Tax Division values producing gas properties and the taxable value is apportioned to local jurisdictions based on well 

location. Because projected taxable valuations are not available for this assessment, an “effective tax yield” of 1.4 percent of the value of 

production, based on analysis of data for past years, was assumed. 

DEIS 4-58 July 2010
Table 4.8-8 Selected Major Public Revenues Over the Life of Field, No Action Alternative

 Annual Average Cumulative

Royalties to the State Permanent Public School Fund $3,612,000 $158,920,000

Total Revenue2 $25,628,000 $1,154,262,000

1

 Other includes the State Board of Education, UGS, Water Research Laboratory, Department of Community and Culture, and state PILT for state lands. Any

residual funds after the state PILT distributions go to the Permanent Community Impact Fund. 

4-59

2

 Includes ad valorem and severance taxes, federal and tribal mineral royalties, and royalties to the State Permanent Public School Fund. 

Severance tax revenues accruing to the State would average about $6.1 million annually and exceed 

$278 million cumulatively.4

 The state severance tax on oil, except for those taxes collected on certain Indian 

lands, is credited to the General Fund, where it is subject to legislative appropriation. 

Federal mineral royalty (FMR) revenues, based on a 12.5 percent royalty rate, would be derived on production 

from federal and Tribal mineral estate that, including Tribal Lands held in trust for the Ute Tribe, underlies 

about 79 percent of the GNBPA. The federal government withholds 1 percent as an administrative and 

processing fee, then splits the remainder of the revenues with the state in which the production occurred. 

Royalties from production from Tribal mineral interests are subject to revenue sharing. The No Action 

Alternative would yield average annual FMR of about $14.4 million and $636 million cumulatively over the life 

of the field. Of the cumulative sum, the federal government and Ute Tribe would receive a combined total of 

about $418 million and $218 million would be disbursed to the state.5

The state of Utah allocates 32.5 percent of its share of FMR to the Utah Permanent Community Impact Fund, 

which can fund state agencies and/or local sub-divisions of the state for social or economic impacts of 

minerals development on federal lands. Forty percent of the State mineral lease revenue funds are allocated to 

the UDOT, which in turn disburses funds to special services districts with preference to counties with 

significant mining activity on federal lands. The remaining funds are earmarked to other state agencies and 

programs, and to funding a state PILT program. The distribution of the state share of FMRs is shown in 

Table 4.8-8. 

Under the No Action Alternative, a total of $1.15 billion would be generated in the form of projected ad valorem 

taxes, Utah severance taxes, federal and tribal mineral royalties, and royalties to the state Permanent Public 

School Fund; an average of $25.6 million annually. In addition to the contribution of produced energy to meet 

domestic demands, these revenues represent additional benefits of the No Action Alternative. 

Community Social Conditions

Employment and population in most communities of the local study area would experience little change from 

the No Action Alternative. The population effects of the No Action Alternative, much of which has already 

occurred, represents approximately 7 percent of the current population in Duchesne County, while that in 

Uintah County represents approximately 6 percent of the population. Past and future population growth 

associated with the No Action Alternative contributes to ongoing social changes in the communities. Some 

members of the communities would view these changes as beneficial, others as adverse. 

 

4

 The Utah severance tax is based on the value of production. The rate for natural gas is 3 percent of value for the first $1.50 per Mcf and 

5 percent of value in excess of $1.50. Given the assumed $4.59 price per Mcf, the effective severance tax rate on KMG gas production is 

estimated at 4.3 percent. The severance tax rate on oil condensates is 4.0 percent. 

5

 A “temporary” change in the distribution of FMR, to 51 percent to the federal government and 49 percent to the state, was recently 

enacted. Extensions of the change are being considered by Congress and the administration. The forecasts in this analysis assume a 

reversion to the previous distribution formula. 

DEIS July 2010
Activities associated with this alternative have the potential to impact traditional Tribal lifeways, and religious 

and cultural sites. In such Tribal-sensitive areas, construction, operation, and associated sights and sounds of 

wells and ancillary facilities could affect the natural character of previously undisturbed areas and alter the 

landscape to a more industrialized setting and diminish opportunities for hunting, gathering of plants, and other 

materials. Specific sites or conflicts have not been identified. 

Environmental Justice

The GNBPA itself and the associated well field development would not be in proximity to any low-income, 

minority, or Tribal communities. The majority of Native American population centers are dispersed along 

Highway 40, and in the towns of Duchesne, Ouray, and Roosevelt. While Highway 40 is an access route 

leading to the GNBPA, populated areas along this highway are not located near the GNBPA boundary. 

Additionally, traffic flows to or from the GNBPA would not be routed to avoid non-minority, Native American, or 

higher income residential areas. Consequently, there would be no environmental justice effects under the No 

Action Alternative. Under the No Action Alternative, the Ute Tribe would receive royalty revenues on current 

and future oil and gas production from Tribal minerals. 

4.8.2 Proposed Action Alternative 

With approval of the Proposed Action Alternative, KMG would anticipate ramping up its drilling program from 

8 rigs to 17 rigs (an average of 24 wells/rig/year) to achieve its development target. An additional rig would be 

deployed in the GNBPA to drill and complete the wells of permits held by others. The expanded level of activity 

would result in additional economic and population growth in the region and also extend the development 

phase from 6 years to 13 years. This analysis evaluates a total of 4,777 wells, 3,675 wells for the Proposed 

Action in addition to the 1,102 under the No Action Alternative. Long-term production levels would be higher 

and the production phase would be extended. 

4.8.2.1 Impacts on Socioeconomics and Environmental Justice 

The Proposed Action Alternative would result in total direct project spending of more than $11.7 billion (2006$) 

by KMG for well development and future operation.6

 The pattern of spending is illustrated in Figure 4.8-6. 

Approximately $6.9 billion of the total expenditures would occur during the 13-year project development phase, 

$5.0 billion more than under the No Action Alternative. Total local spending over the life-of-project is estimated 

at $10.6 billion.

Total production under the Proposed Action Alternative, excluding production from existing wells, is estimated 

at 6.07 Tcf of gas and 86.5 million barrels of oil. Peak annual production would occur 13 years into the project 

(2020). Production would drop off rapidly thereafter, to less than half the peak level within 8 years (2028) and 

to approximately 25 percent of the peak in 2038 (Figure 4.8-7). Production would cease in 2058/59 under the 

assumed well production profile. The total value of gas and oil sold into the marketplace would be $29.9 billion 

in constant 2006 dollars, with peak annual sales of $1.6 billion. 

Employment, Income, and Population

The employment impact of the Proposed Action Alternative is measured by total employment, divided between 

direct and secondary employment. Direct employment includes KMG payroll jobs but is mostly jobs with KMG 

contractors in the drilling and field services industries and, much less so, employment at direct suppliers of 

materials for the project. Secondary employment is the multiplier effect of additional employment created by 

 

6

 The total includes direct project spending only. KMG spending for leases, development of existing wells and infrastructure, project 

planning and permitting, and internal management and corporate support provided from other offices, as well as royalties, taxes, and 

other payments to governments and mineral estate owners are not included. The total does not include future compression and 

transmission costs. 

DEIS 4-60 July 2010
4-61

$0

$100

$200

$300

$400

$500

$600

$700

$800

$900

$1,000

20082012201620202024202820322036204020442048205220562060

Millions

No Action Development Operating

Figure 4.8-6 Direct Project Spending, Proposed Action Alternative 

$0

$200

$400

$600

$800

$1,000

$1,200

$1,400

$1,600

$1,800

$2,000

2008 2016 2024 2032 2040 2048 2056

Millions

Proposed Action

No Action

Figure 4.8-7 Annual Sales Value of Production, Proposed Action Alternative 

purchases of goods and services by KMG contractors and suppliers (indirect employment) and the spending of 

all households that receive project-related income (induced employment). 

Employment impacts for the Proposed Action Alternative are summarized in Table 4.8-9. Total developmentrelated employment would average 2,921 jobs in the study area; 1,709 direct and 1,212 secondary. Nearly 

1,600 of the total jobs would be expected to be based in Uintah County, although on-site work would be 

accomplished from workers from both counties. The total employment impact is approximately 1,461 higher 

than that presently supported by KMG activities and would raise total regional employment by approximately 

5 percent over a 4-year period. 

DEIS July 2010
Table 4.8-9 Project-related Employment and Income, Proposed Action Alternative 

Jobs Labor Income 

Development 

 Direct (average annual) 1,709 $122,820,300 

 Secondary (average annual) 1,212 $25,112,300 

 Total 2,921 $147,932,600 

Peak during Development 4,302 $257,339,000 

Production – Total (average annual) 875 $67,052,300 

Total project-related employment would exceed 3,330 employees for 8 years during the development phase, 

peaking at 4,302 in year 12 of the program when more than 4,400 producing wells would be operating (that 

number excludes existing wells that would still be producing). 

The demand for long-term employees during operations would exceed 300 workers within 8 years and 

ultimately would plateau at approximately 540 workers. The demand for additional labor would contribute to 

increased hiring of qualified available workers from the local labor market, and potentially trigger temporary 

and long-term migration of labor into the region. 

Field operations and maintenance to support continued production following the completion of development 

would support an average of 875 jobs across the region, 414 direct and 461 indirect and induced, with a 

sustained total of about 1,144 jobs over a 25-year period following the completion of development when all of 

the producing wells would be on-line simultaneously. Relative to the projected impact in year 4 under the No 

Action Alternative, the total incremental jobs impact under the Proposed Action Alternative represents nearly a 

10 percent increase over the combined employment in the two counties. 

In addition to foregoing the new jobs supported by the development associated with the Proposed Action 

Alternative, the jobs associated with the current drilling, exploration, and production program would be 

terminated sooner absent the economic stimulus from the development associated with the Proposed Action. 

The loss of approximately 1,500 direct and secondary jobs would result in substantial local economic 

contractions and out-migration of workers and residents from the region. 

The income effects associated with the Proposed Action Alternative is measured by total labor income, the 

principal component of personal income. IMPLAN projects labor income derived from the jobs involved both 

directly and indirectly in field development and gas production, and from the induced jobs created in the 

GNBPA in response to local spending by firms, employees, and employee households. The labor income 

effects are summarized Table 4.8-9. Labor income accruing to all persons holding jobs in the GNBPA because 

of the Proposed Action would average more than $137 million per year during development, $281 million in the 

peak year, and $104 million during the production-only period. Higher incomes for workers in the energy 

industry raise the average income per job, but the overall distribution of incomes have many jobs in local trade 

and services establishments. 

Assuming its continued participation in Ute Energy and the Chipeta Processing joint-venture, the Ute Tribe 

would realize substantial additional income under the Proposed Action. The income would be derived from 

operating revenues associated with the increase in gas volume processed through the gas processing facilities 

and delivery hub operated by the joint venture. Given the greater volume of gas production associated with the 

Proposed Action, the additional revenue realized by the Tribe would be multiple times that generated under the 

No Action Alternative. 

Employment gains associated with the Proposed Action Alternative would trigger population growth and 

demand for housing in the region. The average project-related population during development is 5,590, a net 

increase of 3,005 over the No Action Alternative and a 6 percent increase above the current population in the 

DEIS 4-62 July 2010
region. The net growth would spawn demand for more than 1,850 additional housing units (Table 4.8-10). 

Most of the growth inducing effects of the Proposed Action would occur over a 2- to 4-year period, creating 

another “boom” cycle, as the pace of development increases and the number of active rigs increases from 

8 to 17. 

Table 4.8-10 Project-related Population and Housing Demand, Proposed Action Alternative

Jurisdiction 

During the Development Phase

Net During Development (Difference

compared to No Action) Long-Term Production 

Population Housing Demand Population Housing Demand Population Housing Demand 

Duchesne County

 Roosevelt City 559 345 301 185 151 93

 Rest of County 1,676 1,034 900 556 452 280

County Total 2,236 1,379 1,201 741 603 373

Uintah County

 Vernal City 839 517 451 278 226 140

 Rest of County 2,516 1,551 1,353 834 679 419

County Total 3,354 2,068 1,804 1,112 905 559 

Totals 5,590 3,447 3,005 1,853 1,508 932 

The higher level of development under the Proposed Action Alternative would be sustained for a decade, 

augmented by the effects attributable to increasing production. Following several years of steady build-up, 

peak impacts of about 20 percent higher than the average during development, would occur in year 12 of the 

development program. The peak would occur near the expected completion of the development program. 

Soon thereafter, the shift to long-term field operations and maintenance would reduce total projected related 

employment, population, and housing demands. 

Initially the period of rapid expansion could be characterized by inflows of temporary residents instead of 

permanent immigration. Whether because of the industry’s occupational requirements (rotational and transient 

crews), housing availability (scarcity of appropriate type or price), lifestyle preference (invested elsewhere, 

“footloose” by choice), or economic expectations (job permanence, job mobility), a percentage of those 

employed under the Proposed Action Alternative would not reside permanently in the region. Over time, a 

sustained level of activity and increasing production would promote more permanent residency. 

Grazing

Development under the Proposed Action would result in an estimated reduction of up to 1,018 AUMs of 

available forage on the public grazing allotments in the GNBPA, 640 AUMs more than for the No Action 

Alternative. At a value of $24 per AUM in terms of eventual market value of livestock productivity, the potential 

impact to the gross value, or “cash receipts,” from livestock production would be as much as $24,432 per 

year.7

 The average reduction in grazing over the life of the field, including allowances for the re-establishment 

of adequate forage following interim and final reclamation, is estimated at about 800 AUMs, with a value of 

about $19,200.8

 The potential reduction in revenue, which would materialize over time, though relatively 

limited in the context of the region’s overall economic output, could be significant to the economic well-being of 

one or more individual operators. 

 

7

 The potential adverse effects on receipts could occur as a result of BLM reductions in the levels of permitted use due to the reductions in 

available forage, reduction in actual use by permittees based on the assessment of available forage, or reduced productivity, which 

translates into reduced value at market. 

8

 The average reflects the assumed pace of new development, an allowance for interim reclamation, a 40-year lag between reclamation 

and re-establishment of adequate forage to support grazing, and a 70-year time horizon. 

DEIS 4-63 July 2010
In addition to any direct effects on grazing associated with the loss of forage, the simultaneous occurrence of 

energy development and grazing may impact ranching operations in other ways (e.g., requiring additional herd 

management and fence maintenance). The net effect of such impacts could diminish the economic value of 

grazing to an operator, potentially to a point that renders the entire grazing permit uneconomical. In such 

instances, the net economic loss to the individual operator would be greater than the incremental loss in AUMs 

described above. The net loss in agricultural income could then accrue to the overall economy unless another 

operator subsequently applies for and receives the grazing privileges or changes in grazing management 

(e.g., combining the affected allotment with another allotment) are implemented to sustain the economic 

viability of grazing. 

Recreational Use and Tourism

The effects on the levels of dispersed recreation, including rafting, OHV use, and hunting and fishing in the 

GNBPA would be greater under the Proposed Action Alternative than under the No Action Alternative. The 

levels of disturbance, traffic, awareness of industrial activity, and restrictions related to proximity to energy 

facilities would all be higher at any given time. The impacts could affect the quality of life of area residents as 

well as that of non-residents used to recreating on public lands in the area. The level of impact is indeterminate 

but thought to be minor given the extent, type, and quality of recreation resources within the GNBPA 

compared to others in the region and the relatively light general recreation use of public lands in the area. 

Decreases in the allowable level of upland hunting, which is managed by the UDWR, and changes in the level 

of rafting on the White River could result in less tourism and recreation spending in the regional economy. The 

adverse effects on recreation users could affect parts of the economy that benefit from recreation and cultural 

tourism. The level of impact is indeterminate but thought to be limited given the type and quality of resources in 

the GNBPA as compared to others in the region. 

Local recreation and tourism economies can be affected indirectly by oil and gas industry development if 

lodging is absorbed by workers and visitors are displaced. As noted in Section 3.8.5.1, Housing, the GNBPA 

region has approximately 800 motel rooms and 500 commercial RV spaces (some year-round and some 

seasonal). Ongoing energy resource development currently utilizes much of that capacity. The demand for 

temporary housing under the Proposed Action Alternative would simultaneously increase the utilization and 

pressure on existing resources, increase the lodging rates (which also has an adverse impact on recreation 

use), and encourage investment in additional lodging capacity. 

Community Facilities and Services

Housing. Total housing demand under the Proposed Action Alternative is estimated at 3,280 units during the 

development phase and 932 units during the long-term production period. Housing demand during the 

development phase would be 1,687 units above that under the No Action Alternative; 675 additional units in 

Duchesne County and 1,012 more units in Uintah County. The incremental demand would maintain pressure 

on local housing markets already characterized by substantial new construction, escalating prices, and 

increasing numbers of manufactured housing in the mid-price range as contractors focus resources on larger, 

higher end, custom and semi-custom stick-built housing. As is common in rapid growth situations, the strong 

demand has adversely affected housing affordability and vacancy rates in rentals are very low. 

Project-related demands for housing would be particularly noticeable 3 to 5 years into the development 

schedule as the number of deployed rigs increases from 8 to 17. Project-related demands of 400 to 600 new 

units per year are foreseeable, comparable to the pace of recent construction in the region. Future changes in 

the availability of housing associated with changes in utility capacity and new residential subdivisions would be 

a major influence affecting future residency choices in the region. 

KMG may build and operate two small construction camps within the GNBPA. Each camp would provide 

overnight accommodations for up to 12 individuals (equivalent to a drill rig crew). The camps would be 

self-contained with respect to water and wastewater disposal. These camps would be sited and constructed in 

DEIS 4-64 July 2010
accordance with local land use ordinances. The camps would not be staffed, nor would there be other services 

provided. 

Water and Wastewater. Project-related growth, in particular the demand for residential development, would 

increase the demand for water and wastewater services in the region. Development in some rural areas can 

be served by individual wells and septic systems, but the development in subdivisions would affect several 

local municipal and special district providers. Capital improvement planning and expansion projects in the 

region are moving forward in attempts to provide capacity to meet the anticipated needs. Tap fees and future 

service fees associated with new development would help fund the improvements. 

Public Safety. Given past local experience with energy related development, county and municipal law 

enforcement agencies are familiar with the impacts of rapid growth. While helping them anticipate these 

effects, local law enforcement agencies likely would need to increase staffing levels, particularly the number of 

uniformed officers, as well as expand the size of their motor vehicle fleets, in order to maintain service levels. 

From a fiscal perspective, Uintah County is better positioned than Duchesne County or local municipalities due 

to its extensive property tax base and expanding revenues from existing energy resource development. 

Population growth, additional residential development in unincorporated areas, increases in the level of 

industrial development, and increases in the number of motor vehicle accidents and other emergency medical 

calls would all contribute to additional pressures on local fire protection and emergency medical providers in 

the region. These pressures could factor into deliberations by some providers to add paid staff or become paid 

professional departments. 

Health Care. The two hospitals in the region likely would be able to accommodate projected population growth 

in the region under the Proposed Action Alternative. The emergency rooms would see increases in the number 

of clients. The growth in service area demand prompted facility expansions at the Ashley Valley Medical 

Center, thereby providing improved health care for all residents as well as capacity to accommodate growth. At 

the same time, the hospitals would face challenges in recruiting physicians, nurses, other health care staff and 

administrative staff due to the rising housing costs and competition for labor. They also may face increased 

turnover if adequate staffing levels are not maintained. 

Private medical and dental practices also would increases in client loads, which depending on their ability to 

recruit and retain staff could be a benefit or a negative impact. 

Schools. The Proposed Action Alternative would result in more students enrolling in public schools, not only 

during the development phase, but also during the extended production period. 

The local school districts engage in ongoing facility, staffing, and curriculum planning. After several years of 

declining enrollments, both have seen stabilizing enrollment levels and even some growth. Both also have 

completed new construction and facility remodeling programs, which provides some capacity to accommodate 

growth. Furthermore, both have seen expansion in their local ad valorem property tax base as a result of past 

energy resource development. While both districts are reasonably well-positioned to accommodate some 

growth, their past experiences and that of other districts in similar situations, suggests that considerable 

uncertainty accompanies rapid growth in terms of the number and grade distribution of school age children, 

which can result in dramatic year-to-year shifts in enrollments. A higher degree of transiency among students 

and staff also creates additional challenges for public education. 

Public Expenditures and Revenues

Public Expenditures. Order of magnitude estimates of public expenditures of local, general-purpose 

government are presented in Table 4.8-11. The estimates are based on the average project-related population 

effects shown in Table 4.8-10 and the average annual expenditures of the county and municipal governments 

(also see Section 3.7, Recreation). The amounts are the average annual and cumulative expenditures during 

the development phase. The annual expenditure requirements would be substantially lower during the 

DEIS 4-65 July 2010
production phase. Across all jurisdictions, the Proposed Action Alternative would generally stimulate demand 

for services and impose costs to deliver in advance of the offsetting revenues. Even if revenues from the 

project eventually exceed the costs of service, which is likely in Uintah County, some local governments and 

service providers are likely to experience short-term adverse fiscal impacts due to the project. 

Table 4.8-11 Local Government General Purpose Cost During Development (2006 $), Proposed Action 

Alternative 

Jurisdiction Annual Average Expenditure Impact1

 Cumulative Expenditure Impacts1

Duchesne County $2,359,300 $30,670,600 

 Roosevelt $722,000 $9,386,400 

Uintah County $3,114,200 $40,484,100 

 Vernal $977,800 $12,711,700 

1 These values include projected costs associated with the No Action Alternative. 

The incremental annual general purpose costs for local government under the Proposed Action Alternative 

range from $722,000 in Roosevelt to $3.11 million for Uintah County and are equivalent to approximately 11 to 

12 percent of current budgeted expenditures. However, not all of the projected costs represent anticipated 

increases as some of these costs are tied to services to be provided to population associated with KMG’s 

existing operations and future development under the No Action (Table 4.8.7) and consequently are already 

being accrued. The two county governments would face higher costs due to the pattern of substantial 

residential development occurring in unincorporated areas. Cumulative expenditures over the development 

period range from $9.4 million for Roosevelt to $40.5 million in Uintah County. For the counties, larger shares 

of the expenditure impact would be due to costs of general government, public safety, and public health than 

due to other public expenditure categories. In municipalities, the spending impacts would mostly represent the 

costs of general government, public safety, streets, and recreation. 

Public Revenues. Property taxes, severance taxes, and FMR revenues are three important sources of local 

and State public revenue that would respond directly to development under the Proposed Action Alternative 

because they are based on the value of production. The value of marketed production under the Proposed 

Action would average approximately $564 million per year and approximately $29.9 billion cumulatively over 

the life of the field. The projection was derived by multiplying annual field production estimates by $4.59 per 

Mcf and $45 per barrel. All of the wells would be located in Uintah County. Table 4.8-12 summarizes the 

selected revenue streams over time. 

Table 4.8-12 Selected Major Public Revenues Over the Life of Field, Proposed Action Alternative

Annual Average Cumulative 

Value of Production over the life of the field (undiscounted) $564,232,000 $29,904,298,000 

Projected Ad Valorem Tax 

 Uintah County $1,969,000 $99,849,000 

 Uintah School District $4,809,000 $243,904,000 

 Total $6,778,000 $343,753,000 

Utah Severance Taxes $22,485,000 $1,146,735,000 

Federal and Tribal Mineral Royalties 

 Federal and Tribal share $34,706,000 $1,769,980,000 

 State share (49.5% of federal royalties) $18,086,000 $922,396,000 

DEIS 4-66 July 2010
Table 4.8-12 Selected Major Public Revenues Over the Life of Field, Proposed Action Alternative

Annual Average Cumulative

 Distribution of the State share:

 Permanent Community Impact Fund (32.5% base allocation) $5,878,000 $299,779,000 

 Utah Dept. of Transportation for SSDs (40%) $7,234,000 $368,958,000 

 Other (27.5%)1 $4,974,000 $253,659,000 

Royalties to the State Permanent Public School Fund $13,198,000 $673,094,000 

Total Revenue2 $95,255,000 $4,855,958,000

4-67

1

 Other includes the State Board of Education, UGS, Water Research Laboratory, Department of Community and Culture, and state PILT for state lands. Any 

residual funds after the state PILT distributions go to the Permanent Community Impact Fund. 

2

 Includes ad valorem and severance taxes, federal and tribal mineral royalties, and royalties to the State Permanent Public School Fund. 

Future production under the Proposed Action Alternative would provide a large increase in the ad valorem tax 

base of Uintah County and the Uintah School District. The increase would be more than four times greater 

than under the No Action Alternative on an average annual basis, more than five times higher cumulatively, 

and extend about 10 years longer. Based on FY2006 tax rates, anticipated tax payments to Uintah County and 

the Uintah School District under the Proposed Action Alternative would average nearly $6.8 million annually; 

29 percent of the total accruing to the county, the remainder to the school district. Duchesne County, the city of 

Vernal, and other local jurisdictions would realize gains in their respective tax bases from new residential and 

commercial development. 

Severance tax revenues accruing to the State would average $22.5 million annually and exceed $1.14 billion 

cumulatively over the life of the field. These revenues would accrue to the state’s general fund, supporting 

statewide government and services. 

Approval and implementation of the Proposed Action Alternative would yield nearly $2.7 billion in cumulative 

FMR over the life of the field, averaging approximately $53 million annually. Approximately $1.8 billion would 

accrue to the federal treasury and Ute Tribe and $922 million would be disbursed to the state.9

 Nearly 

$300 million of the state’s share would accrue to the Permanent Community Impact Fund, more than 

$368 million to the UDOT, with the remaining funds earmarked to other state agencies and programs, and to 

funding a state PILT program. 

Public education in Utah also would realize significant fiscal benefits under the Proposed Action Alternative 

due to royalties received from production on state lands that would accrue to the SITLA. Based on the 

approximate state ownership interests in the GNBPA, more than $673 million in such royalties would result 

during the life of the field. 

Under the Proposed Action Alternative, a total of $4.85 billion would be generated in the form of projected ad 

valorem taxes, Utah severance taxes, federal and tribal mineral royalties, and royalties to the state Permanent 

Public School Fund; an average of $95.2 million annually. This sum is more than four times the sum under the 

No Action Alternative. In addition to the contribution of produced energy to meet domestic demands, these 

revenues represent additional benefits of the Proposed Action Alternative that would accrue over an extended 

period. 

 

9

 A “temporary” change in the distribution of FMR, to 51 percent to the federal government and 49 percent to the state, was recently 

enacted. Extensions of the change are being considered by Congress and the administration. The forecasts in this analysis assume a 

reversion to the previous distribution formula. 

DEIS July 2010
Sales and use taxes on purchases of taxable goods in the region by KMG, plus retail purchases of contractors 

and employees, also would be collected by jurisdictions in Duchesne and Uintah counties. All county and 

municipal jurisdictions in the local study area for socioeconomics assess the local option sales tax of 

1 percent. The State sales tax is 4.75 percent. 

Community Social Conditions

Social well-being in communities is disrupted during boom periods, characterized by rapid growth rates that 

can double population in a decade or less, though not all dimensions of well-being are affected by such rapid 

change. Also, if social well-being is adversely affected by boom growth, studies in natural-resource driven 

communities, including in Utah, have found that disruptive effects may not last once stability is re-established 

(Smith et al. 2001). 

Under the Proposed Action, growth pressures would mount in the local study area, especially during years 3 

through 5 of the development phase. The two counties would see a population influx of about 2,700 persons 

within 2 or 3 years. The pace of growth would then moderate over the next decade before completion of the 

development program results in a loss of jobs and creates the conditions necessary for another severe 

economic contraction, or “bust.” 

Potential adverse effect to residents of the region would be declines in personal feelings of satisfaction with the 

community as a place to live during the most rapid periods of growth. The disruptive consequences of boom 

growth that “occur in some places, during some periods of the growth process, and for only some segments of 

the local population” (Smith et al. 2001), are related to perceptions of the friendliness, neighborliness, and 

trustworthiness of other residents; security, safety and risk of victimization by crime; and how satisfying 

community life is in general, all of which can be adversely impacted for existing residents by the growth and 

change brought on by a relatively large wave of development (Smith et al. 2001). 

A period of renewed social disruption would occur at the end of the development phase, but community social 

well-being likely would rebound during the extended production period. A factor that could alleviate some of 

the adverse effect on social well-being is the fact that the local community has experienced these changes 

before in the context of oil and gas development over the past 20 years. The past experience has resulted in a 

relatively high level of social integration adaptable to natural resource dependency. This is reinforced by the 

general understanding that commitment to “public lands resource extraction ... [is] the mainstay of our 

employment and tax base” (Uintah County 2005). 

Activities associated with this alternative have the potential to impact traditional Tribal lifeways, and religious 

and cultural sites. In such Tribal-sensitive areas, construction, operation, and associated sights and sounds of 

wells and ancillary facilities could affect the natural character of previously undisturbed areas and alter the 

landscape to a more industrialized setting and diminish opportunities for hunting, gathering of plants, and other 

materials. Specific sites or conflicts have not been identified; however, the potential for conflict would be higher 

due to the increased density of development than under No Action. 

Environmental Justice

No adverse environmental justice impacts would result under the Proposed Action Alternative. The Ute Tribe 

would realize higher royalties from oil and gas production from Tribal mineral interests under the Proposed 

Action Alternative. 

4.8.2.2 Mitigation and Mitigation Effectiveness 

No additional mitigation measures for economic and social values have been identified; therefore, no review of 

mitigation effectiveness has been made. 

DEIS 4-68 July 2010
4.8.2.3 Residual Effects 

No additional mitigation measures have been identified for economic and social values; therefore, the residual 

effects include all of the impacts described above. 

4.8.3 Resource Protection Alternative 

4.8.3.1 Impacts on Socioeconomics and Environmental Justice 

Under the Resource Protection Alternative, the number of additional wells would be the same as under the 

Proposed Action Alternative and the assumed pace of development also would be the same. Consequently, 

the average number of wells drilled each year, a critical driver for the socioeconomic assessment, also would 

be the same as under the Proposed Action Alternative. Some differences in costs, labor utilization, and other 

dimensions of well drilling and completion are anticipated between conventional wells and clustered, 

directional drilling incorporated in the Resource Protection Alternative. However, the net magnitude and extent 

of the differences is uncertain due to potential trade-offs in different activities, for example, more labor 

associated with drilling but less effort involved in rig moves and mobilization. Consequently, there is no 

substantive basis to differentiate between the socioeconomic impacts of the Resource Protection Alternative 

from those for the Proposed Action Alternative in terms of the intensity of development pressure in the region, 

population growth, and attendant implications for housing demand, public school enrollment, and demands on 

public services and facilities. Production related public sector revenues also would be comparable, both on an 

average annual basis and cumulatively. 

Environmental Justice

No adverse environmental justice impacts would result under the Resource Protection Alternative. Tribal 

royalty revenues from production from Tribal mineral interests would be comparable to those under the 

Proposed Action; both of which would be substantially higher than under the No Action Alternative. 

4.8.3.2 Mitigation and Mitigation Effectiveness 

No additional mitigation measures for economic and social values have been identified; therefore, no review of 

mitigation effectiveness has been made. 

4.8.3.3 Residual Effects 

No additional mitigation measures have been identified for economic and social values; therefore the residual 

effects include all of the impacts described above. 

4.8.4 Optimal Recovery Alternative 

4.8.4.1 Impacts on Socioeconomics and Environmental Justice 

The Optimal Recovery Alternative foreshadows a substantially different socioeconomic future for the region, 

assuming the development of 13,446 new wellbores for the Optimal Recovery Alternative in addition to 

1,102 No Action wells (total 14,548). The development period would be extended to 21 years, and the 

production horizon to approximately 60 years. The socioeconomic assessment maintains the same per well 

development, operating costs, and per well production assumptions used for the Proposed Action Alternative. 

Implicitly, it also assumes that the in-place gas and oil reserves would support the assumed level of 

development and production. It is unclear, however, that KMG would be the sole operator associated with this 

alternative; that the costs would be consistent over time across the field and different well depths; that the 

three typical well production profiles appropriate characterize production under this alternative; and what level 

of additional treatment, processing, compression, and transmission capacity would be needed. Figure 4.8-8

illustrates the spending pattern under Optimal Recovery Alternative. 

DEIS 4-69 July 2010
$0

$250

$500

$750

$1,000

$1,250

$1,500

$1,750

2008 2018 2028 2038 2048 2058 2068

Millions

No Action Development Operating

Figure 4.8-8 Project Direct Spending, Optimal Recovery Alternative 

The Optimal Recovery Alternative would result in total estimated direct project spending of more than 

$37.9 billion (2006 dollars) for well development and operation. Total local spending over the life-of-project is 

estimated at $33.8 billion. 

Total future production under the Optimal Recovery Alternative, excluding any production from existing wells, 

is estimated at 15.4 Tcf of gas and 118.0 million barrels of oil. Peak annual production would not occur for 

some 22 years (2029/30). Production would decline sharply thereafter, though the value of annual sales into 

the marketplace would remain above $100 million annually for nearly 40 years (Figure 4.8-9). The total 

projected value of gas and oil sold into the marketplace would be $71.3 billion in 2006 dollars. 

$0

$500

$1,000

$1,500

$2,000

$2,500

$3,000

$3,500

2008 2018 2028 2038 2048 2058 2068

Millions

Optimal Recovery

No Action

Figure 4.8-9 Annual Sales Value of Production, Optimal Recovery Alternative 

DEIS 4-70 July 2010
Employment, Income, and Population

Under Optimal Recovery Alternative, average total employment related to the project development phase 

would be 5,257 jobs in the local study area (Table 4.8-13), with a development related peak of 5,621 jobs. The 

combined peak for development and production related employment would be 9,024 jobs in year 23 of the 

development horizon. Production-related employment would remain stable at about 3,483 jobs following 

completion of the development program, and then decline steadily as the production levels and the number of 

producing wells also declined. Production employment would average 1,712 jobs over the life of the project. 

Table 4.8-13 Project-related Employment and Income, Optimal Recovery Alternative 

Jobs Labor Income 

Development 

 Direct (average annual) 3,075 $221,023,800 

 Secondary (average annual) 2,182 $45,191,400 

 Total 5,257 $266,215,200 

Peak during Development 9,024 $591,622,400 

Production – Total (average annual) 1,712 $152,826,100 

The extended development associated with the Optimal Recovery Alternative would provide a more sustained 

economic stimulus in the regional economy than that for the other alternatives. The differences are apparent in 

Figure 4.8-10, which portrays total project-related employment over time for the Optimal Recovery and the 

Proposed Action alternatives. The difference would be not only in magnitude but in terms of the duration. The 

latter would effectively transform the industry from one generally perceived as temporary, to one that is a 

fundamental part of the region’s economy. 

0

1,000

2,000

3,000

4,000

5,000

6,000

7,000

8,000

9,000

10,000

2008 2018 2028 2038 2048 2058

Optimal Recovery

Proposed Action

Figure 4.8-10 Total Employment in the Study Area, Optimal Recovery Alternative 

Project-related effects on labor income generally would mirror the employment impacts in terms of scale. The 

combined average annual labor income over the 22-year development phase, including both development and 

production related earnings, would be about $419 million, equivalent to one-half the combined wage and 

DEIS 4-71 July 2010
salary earnings of all workers in the two-county region in 2005. The estimated peak annual income of 

$591 million is equivalent to approximately 71 percent of the combined earnings in 2005. 

Assuming its continued participation in Ute Energy and the Chipeta Processing joint-venture, the Ute Tribe 

would realize substantial additional income under the Optimal Recovery Alternative. The income would be 

derived from operating revenues associated with the increase in gas volume processed through the gas 

processing facilities and delivery hub operated by the joint venture. Given the projected volume of gas 

production associated with the Optimal Recovery Alternative, the additional revenue realized by the Tribe 

would be more than 10 times that generated under the No Action Alternative, and 2.5 times higher than under 

the Proposed Action, other factors remaining the same. 

Project-related employment under Optimal Recovery Alternative translates into a potential average population 

of 8,368 residents during development, with a potential eventual peak of over 14,000 residents. The peak 

would occur more than 20 years into the future (Figure 4.8-9). The peak population impact would represent 

more than a 30 percent increase over the current population. Average population and housing demand 

impacts during the project development phase under the Optimal Recovery Alternative are 5,783 residents 

and 3,566 dwelling units higher than under the No Action, and the impacts would be sustained over a 

substantially longer duration (Table 4.8-14). 

Table 4.8-14 Project-related Population and Housing Demand, Optimal Recovery Alternative 

Jurisdiction 

Development Net During Development Production 

Population Housing Demand Population Housing Demand Population Housing Demand 

Duchesne County 

 Roosevelt City 837 516 579 357 273 169 

 Rest of County 2,510 1,548 1,734 1,070 820 505 

 Total 3,347 2,064 2,313 1,427 1,093 674 

Uintah County 

 Vernal City 1,255 774 867 535 410 253 

 Rest of County 3,766 2,322 2,603 1,605 1,229 758 

 Total 5,021 3,095 3,470 2,139 1,639 1,011 

Totals 8,368 5,159 5,783 3,566 2,732 1,685 

Long-term housing demands associated with the Optimal Recovery Alternative would maintain recent 

pressures on the local residential construction industry. Additional subdivisions would be required and more 

development would occur in unincorporated areas. 

Following completion of development, project-related employment, population, and housing demand would 

decline substantially, but remain above the levels associated with KMG current activities for another 25 years 

or more. The declines would raise local unemployment, trigger out-migration, dramatically increase the supply 

of available housing, depress housing prices, and generally push down the prevailing labor compensation 

rates. 

Grazing

Over time, the Optimal Recovery Alternative would result in the highest impact on grazing levels, eventually 

resulting in a reduction of up to 3,425 AUMs per year of available forage across 12 grazing allotments in the 

GNBPA; a peak loss of up to 3,047 AUMs more than under the No Action. The impact to the future cash 

receipts to ranchers from livestock production would be about $82,200 per year, at $24 per AUM, a potentially 

substantial adverse impact on one or more affected operators. The average reduction in grazing over the next 

70 years of field operations, including allowances for the re-establishment of adequate forage following interim 

and final reclamation, is estimated at about 2,617 AUMs, with a value of about $67,808. The losses could 

DEIS 4-72 July 2010
require adjustment in herd sizes, additional management costs, and potentially even reconsideration of 

decisions to maintain use of the allotment(s). The losses may be relatively small in comparison to total regional 

agricultural output but be critical to the economic well-being of one or more individual affected operators. The 

potential for indirect impacts on ranching operations, including the possibility of rendering an entire grazing 

permit uneconomical, exists under the Optimal Recovery Alternative. Although not quantifiable, the potential 

would be greater than under the Proposed Action, and any such impacts would be long-term. 

Recreational Use and Tourism

The effects on the levels of dispersed recreation, including rafting, OHV use, and hunting and fishing in the 

GNBPA would be greater under the Optimal Recovery Alternative than under the other alternatives. At any 

given time, the levels of disturbance, traffic, awareness of industrial activity, and restrictions related to 

proximity to energy facilities would all be higher than under the Proposed Action Alternative. The impacts could 

affect the quality of life of area residents as well as that of non-residents used to recreating on public lands in 

the area. The adverse effects on recreation users could affect parts of the economy that benefit from 

recreation and cultural tourism. The level of impact is indeterminate but thought to be limited given the type 

and “quality” of resources in the GNBPA as compared to others in the region. 

Community Facilities and Services

The long-term growth associated with the Optimal Recovery Alternative would have long-term implications for 

facility needs, staffing, and service provision plans for virtually all local service providers in the region. The 

peak impacts would represent more than 70 percent of the total growth attributable to all sources that is 

presently projected to occur in the two counties by the State of Utah. Local governmental agencies and other 

service providers likely would require additional administrative space, motor vehicle fleets, and other support 

facilities. Traffic volumes would increase, placing additional demands on state and local roads and bridges. 

Water and wastewater providers would need to expand their distribution and collection systems and build 

additional storage and treatment capacity. Local water providers likely would need to acquire and develop 

water supplies. 

Additional schools would be required by the local school districts to accommodate increasing enrollments and 

to efficiently serve the larger population distributed over a wider geographic area. 

Public agencies facing the need to recruit additional staff would compete against private sector employers for 

qualified staff. 

Public Expenditures and Revenues

Public Expenditures. Approval and implementation of the Optimal Recovery Alternative initially would result 

in public costs of local, general-purpose government that are comparable to those under the Proposed Action 

Alternative. However, those costs would increase substantially over time in response to project-related 

population growth. Consequently, the average annual costs over the entire development phase would be 

higher (Table 4.8-15). 

Table 4.8-15 Local Government General Purpose Cost During Development (2006 $), Optimal 

Recovery Alternative 

Jurisdiction Annual Average Expenditure Impact Cumulative Expenditure Impact 

Duchesne County $3,531,500 $77,694,100 

Roosevelt $1,080,800 $23,777,500 

Uintah County $4,661,500 $102,553,500 

Vernal $1,463,700 $32,201,100 

DEIS 4-73 July 2010
Impacts on public expenditures would decline following the completion of the development phase. The decline 

would be significant given the expected population; however, the continuing demand during production would 

be higher than under the other alternatives. 

Public Revenues. The average annual and cumulative values of production under the Optimal Recovery 

Alternative are substantially higher than for all other alternatives. The average annual value of production 

would be $858 million, with cumulative production of $71.3 billion over the life of the field (Table 4.8-16). The 

high production values would translate into higher public tax revenues over time.10 Table 4.8-16 presents 

estimates of the property tax revenues to Uintah County and the Uintah County School District, the severance 

tax benefit to the state, and FMR revenues to the federal, Ute Tribe, and state governments and the 

subsequent appropriations for the benefit of local government. 

Table 4.8-16 Selected Major Public Revenues Over the Life of Field, Optimal Recovery Alternative

Annual Average Cumulative

Value of Production over the life of the field (undiscounted) $848,441,000 $71,269,042,000

Projected Ad Valorem Tax

 Uintah County $4,165,000 $248,655,000

 Uintah School District $10,175,000 $607,397,000

 Total $14,340,000 $856,052,000

Utah Severance Taxes $42,337,000 $2,709,546,000 

Federal and Tribal Mineral Royalties

 Federal and Tribal share $69,357,000 $4,161,388,000 

 State share (49.5% of federal royalties) $36,144,000 $2,171,491,000 

 Distribution of the State share:

 Permanent Community Impact Fund (32.5% base) $11,747,000 $704,807,000

 Utah Dept. of Transportation for SSDs (40%) $14,457,000 $867,455,000

 Other (27.5% of state)1 $9,940,000 $596,375,000

Royalties to the State Permanent Public School Fund $26,375,000 $1,582,507,000 

Total Revenue2 $188,553,000 $11,480,984,000

1

 Other includes the State Board of Education, UGS, Water Research Laboratory, Department of Community and Culture, and state PILT for state lands. Any 

residual funds after the state PILT distributions go to the Permanent Community Impact Fund. 2 Includes ad valorem and severance taxes, federal and tribal mineral royalties, and royalties to the State Permanent Public School Fund. 

Under the Optimal Recovery Alternative, a total of $11.48 billion would be generated from ad valorem taxes, 

Utah severance taxes, federal and tribal mineral royalties, and royalties to the State Permanent Public School 

Fund; an average of $188.6 million annually. This sum is nearly 10 times the cumulative revenue generated 

under the No Action Alternative, and more than double the cumulative revenue generated under the Proposed 

Action. In addition to the contribution of produced energy to meet domestic demands, these revenues 

represent additional benefits of the Optimal Recovery Alternative that would accrue over an extended period. 

 

10 A “temporary” change in the distribution of FMR, to 51 percent to the federal government and 49 percent to the state, was recently 

enacted. Extensions of the change are being considered by Congress and the administration. The forecasts in this analysis assume a 

reversion to the previous distribution formula. 

DEIS 4-74 July 2010
Determinations of net fiscal effects on public service providers under the Optimal Recovery Alternative are 

beyond the scope of this assessment. However, Uintah County and countywide SSDs are better positioned 

from a fiscal perspective because of past growth in its property tax base due to energy production. The 

municipalities, particularly Roosevelt, rely more heavily on sales tax receipts and are therefore more likely to 

be adversely affected. The local governments also would realize additional revenues from fees and charges 

for services. 

Community Social Conditions

The Optimal Recovery Alternative could have dramatic implications for community social well-being due to the 

extended development and production horizon. Initially, the effects associated with rapid growth would be 

comparable to those under the Propose Action Alternative and may be perceived as adverse by many. Over 

the long term, the sense of social disruption likely would ease as the industry sustains its presence in the 

community and production employment, which tends to be more stable and characterized by a higher degree 

of permanent residents of the community, accounts for an increasing share of the industry employment. 

Activities associated with this alternative have the potential to impact traditional Tribal lifeways, and religious 

and cultural sites. In such Tribal-sensitive areas, construction, operation, and associated sights and sounds of 

wells and ancillary facilities could affect the natural character of previously undisturbed areas and alter the 

landscape to a more industrialized setting and diminish opportunities for hunting, gathering of plants, and other 

materials. Specific sites or conflicts have not been identified; however, the potential for conflict would be 

substantially greater than under the No Action Alternative due to the density of development. 

Environmental Justice

No adverse environmental justice impacts would result under the Optimal Recovery Alternative. The Ute Tribe 

would realize substantially higher mineral royalty revenue on production from Tribal mineral interests under the 

Optimal Recovery Alternative than under the other alternatives. 

4.8.4.2 Mitigation and Mitigation Effectiveness 

No additional mitigation measures for economic and social values have been identified; therefore, no review of 

mitigation effectiveness has been made. 

4.8.4.3 Residual Effects 

No additional mitigation measures have been identified for economic and social values; therefore, the residual 

effects include all of the impacts described above. 

4.8.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Development and production of the energy resources located in the GNBPA would provide economic support 

for local households. Communities would benefit from additional investments and public entities, including the 

federal, state, Ute Tribe, and local governments, would derive revenues from the economic activities. 

Development of these resources also would benefit residential, commercial, and industrial consumers outside 

the region. Some of the infrastructure put in place to serve this project also may support future production and 

distribution of energy resources from other deposits in the region or nearby. 

Higher development and production rates in the short term, however, carry with them potential trade-offs in 

social and economic conditions when compared to those that would exist assuming lower, more sustained 

development and production levels over a longer time horizon. Furthermore, the consumption of the energy 

resources in the short term preclude use at a future time. Which of these futures is preferable is largely a 

matter of individual preference, particularly as the alternatives affect different groups of individuals over time. 

DEIS 4-75 July 2010
4.8.6 Irreversible/Irretrievable Commitment of Resources 

Development and production of the energy resources located in the GNBPA would require the investment of 

human, natural, and monetary resources. Most of those investments would be irretrievable and also may 

preclude or foreclose opportunities associated with other alternatives. Meeting the demands for goods and 

services directly and indirectly associated with the project, for example, the commitment of natural and other 

resources to housing or gravel and asphalt to build and maintain highways, also would be irreversible. 

DEIS 4-76 July 2010
4.9 Soils 

Potential impacts to GNBPA soils could result from construction, operation, and reclamation of soil resources. 

Impacts anticipated to occur include soil rutting and mixing, compaction, increased erosion potential, and loss 

of soil productivity. These same actions also would damage or destroy protective BCSs if present in areas to 

be disturbed. Damage to or loss of BSCs could exacerbate both the increase in soil erosion potential and the 

loss of soil productivity. 

Rutting affects the surface hydrology of a site, in addition to the rooting environment. The process of rutting 

physically severs roots and reduces the aeration and infiltration of the soil, thereby degrading the rooting 

environment. Rutting may result in soil mixing of topsoil and subsoil, thereby reducing soil productivity. Rutting 

also disrupts natural surface water hydrology by damming surface water flows, creating increased soil 

saturation upgradient from ruts, or by diverting and concentrating water flows creating accelerated erosion. 

Soil mixing typically results in a decrease in soil fertility and a disruption of soil structure. Many soils within the 

GNBPA have subsurface layers with high values for salinity and/or sodicity; mixing these materials may affect 

reclamation or productivity. Compaction leads to a loss of soil structure; decreased infiltration, permeability, 

and soil aeration; as well as increased runoff and erosion. Increased erosion can lead to a decrease in soil 

fertility and an increase in sedimentation and salinity contributions to local streams and waterbodies. The 

duration and intensity of these impacts would vary according to the type of construction activity to be 

completed and the inherent characteristics of the soils to be impacted. The duration and intensity of the 

impacts also would be determined, in part, by the site maintenance and reclamation activities. 

Grading and leveling would be required to construct these facilities, with the greatest level of effort required on 

more steeply sloping areas. During construction, the soil profiles would be mixed with a corresponding loss of 

soil structure. Soils would be compacted during the construction of wells and associated facilities with 

compaction maintained, at least in part, by continued vehicle and foot traffic as well as operational activities. 

The potential for erosion would increase through the loss of vegetation cover and soil structure as compared to 

an undisturbed state. Soil productivity would decrease, in like manner, primarily as a result of profile mixing 

and compaction along with the loss in vegetative cover. A decrease in soil productivity also would occur in 

association with planned soil salvage and stockpiling activities as microbial action is curtailed, at least to some 

degree, in the constructed long-term stockpiles. These impacts would begin immediately as the soils are 

subjected to grading and construction activities and continue for the term of operations. The impacts on soils 

would move to a steady state as construction activities are completed and well production/maintenance 

operations begin. 

The same categories of impacts to soils occur as a result of road construction and upgrading, but to a 

somewhat lesser degree of intensity. Roads result in a removal of land from the growing base. Indirect effects 

may include landslides, gullies, generation of side cast materials (sediment), and disruption and interception of 

subsurface flow of water that could alter soil moisture regimes upslope and down slope from the road. Where 

the topography is relatively flat and grading occurs, it would be limited to the upper subsurface soil horizons. 

As a result, subsurface soils would not be subject to profile mixing. Where cut and fill slopes occur, the soil 

profiles would be mixed with a corresponding loss of soil structure. Soil compaction would considerably impact 

the upper profile subsoils immediately beneath the road surface but also would impact subsurface soils at a 

greater depth if fine textured soils are present. Soil compaction would result in a corresponding loss of 

infiltration, permeability, and soil aeration. Runoff and soil erosion may increase as a result of compaction. 

Where road surfacing is applied, this impact would be reduced. These impacts, along with a loss in soil 

productivity, would occur for the duration of the project and until successful reclamation is achieved. 

Such adverse impacts, individually or in combination, could limit reclamation success. However, these 

impacts, when coupled with additional inherent limitations to successful reclamation that characterize nearly all 

soils that are present within the GNBPA, would pose even greater challenges to successful reclamation. 

Because soil types with constraining characteristics are distributed throughout the GNBPA, total avoidance of 

these areas is not feasible (Table 4.9-1). Soils characterized by high constraints occupy an estimated 

DEIS 4-77 July 2010
93.5 percent (152,300 acres) of the 162,911-acre GNBPA. Soils exhibiting moderate constraints (3 percent/ 

4,900 acres) and low constraints (3.5 percent/5,700 acres) of the GNBPA comprise the remaining 6.5 percent 

of the GNBPA. High constraint soils present a variety of limitations that would require flexibility within both 

interim and final reclamation planning to account for the individual and combination of limitations that 

characterize these soils when disturbed by project development activities. 

Table 4.9-1 Anticipated Acreage Disturbance for High, Moderate, and Low Constraint Soils by 

Alternative 

Moderate Low 

High Constraint Constraint Constraint 

1 Disturbance Type Soils Soils Soils Total 

No Action Alternative 

Construction 4,396 141 165 4,702 

Interim Reclamation 1,639 53 61 1,735 

Proposed Action Alternative 

Construction 11,835 380 443 12,658 

Interim Reclamation 4,423 142 166 4,731 

Resource Protection Alternative 

Construction 7,618 244 285 8,147 

Interim Reclamation 3,166 102 119 3,387 

Optimal Recovery Alternative 

Construction 39,849 1,279 1,492 42,620 

Interim Reclamation 12,331 396 462 13,189 

1

 Includes areas of badlands and rock outcrop where soil material is mostly absent. 

For the purposes of this analysis, successful interim and final reclamation, including soil stabilization, 

preparation, and revegetation, refers to the return of disturbed areas to a stabilized condition that is resistant 

to erosion and supports vegetative productivity and use comparable to current principal uses of oil and gas 

development, livestock grazing, and wildlife habitat. Further information regarding reclamation can be found in 

the Reclamation Plan (Appendix E). 

The long-term performance standard is re-establishment of a self-sustaining native plant community. To date, 

the BLM Vernal Field Office has yet to observe such levels of successful reclamation. The recent multi-year 

drought conditions in the Uinta Basin area are believed to be the principal limitation to success for both interim 

and final reclamation efforts. 

Implementation of any of the four alternatives would result in soils disturbance of high, moderate, and low 

constraint soils. The estimated area of disturbance by alternative for each of the three constraint levels is 

provided in Table 4.9-1. Acres of impact for the alternatives are new disturbance and are in addition to existing 

disturbance within the GNBPA, which is estimated to total approximately 7,766 acres. Construction and field 

development impacts are quantified as acres disturbed from construction of well pads, roads, pipelines, and 

related facilities. Post interim reclamation or residual impacts are quantified as acres of disturbance that 

remain after interim reclamation of pipelines and those portions of roads, well pads, and other related facilities 

that would not be used during operations. Locations of roads, wells, pipelines, and other facilities have not yet 

been identified; therefore, site-specific impacts on soils are not assessed in this analysis. The poor quality and 

limited quantity of topsoil and the high erodibility and potential for accelerated erosion of the materials 

comprising the high and moderate constraint soils pose the greatest challenges to successful soil stabilization, 

reclamation, and restoration of protective and productive vegetative cover following construction for both 

DEIS 4-78 July 2010
interim and final reclamation efforts. Drought conditions are believed to have exacerbated and would continue 

to exacerbate those conditions limiting successful soil stabilization and revegetation in the vicinity of the 

GNBPA. 

In addition to natural limiting factors inherent to the sensitive soil types, additional limitations on 

post-construction and reclamation success may result from accidental releases of contaminants including 

hydrocarbons and other hazardous chemicals that may limit revegetation establishment and success, and may 

indirectly contribute to surface water contamination via runoff from contaminated soil surfaces. 

4.9.1 No Action Alternative 

Soils are to be managed to restore and maintain soil quality and long-term productivity through the 

implementation of applicable BMPs, guidelines for rangeland health and other soil protection measures as 

stated in the BLM Vernal RMP (BLM 2008b). To meet this goal or objective, the Soil and Water Resources 

Management Decisions in the RMP stipulate the following: 

• Severe and critical erosion areas are to be restored and protected by restricting or mitigating surface 

disturbance. 

• Activities are to comply with standards identified in “The Surface Operating Standards for Oil and Gas 

Exploration and Development” (Gold Book) unless otherwise specified n the RMP. 

• The Gold Book is to be used as a guide for surface-disturbing proposals on steep slopes/hillsides: 

− Steep hillsides would be avoided in the construction of routes, pipelines, and flowlines. 

− If surface disturbing activities cannot be avoided on slopes of 21 to 40 percent, an approved plan 

comprised of an erosion control strategy, GIS modeling, and proper survey and design by a 

certified engineer would be required. 

• For slopes greater than 40 percent, no surface disturbance will be allowed unless it is determined that 

it would cause undue or unnecessary degradation to pursue other placement alternatives. 

4.9.1.1 Impacts on Soils 

Implementation of the No Action Alternative would result in no additional oil and gas development activities 

beyond those activities previously approved in the GNBPA. Previously approved actions would involve the 

new disturbance of 4,702 acres (2.9 percent) of the 162,911-acre GNBPA due to access road construction, 

drilling and completion, production facilities construction, and linear pipeline facilities construction. Reclaimable 

new disturbance under interim reclamation would total approximately 1,735 acres (1.1 percent) of the GNBPA. 

Of the anticipated 4,702 acres of new disturbance in the GNBPA under the No Action Alternative 

(Table 4.9-1), approximately: 

• 4,396 acres (93.5 percent) of the new disturbance from approved oil and gas development would 

occur in high constraint soils that pose mostly multiple constraints to successful implementation of 

reclamation measures and long-term maintenance of protective and productive vegetative cover; 

• 141 acres (3 percent) of new disturbance from approved oil and gas development would occur in 

moderate constraint soils that pose again mostly multiple, but less severe limitations to successful 

reclamation and long-term maintenance of vegetative cover; and 

• 165 acres (3.5 percent) of new disturbance from approved oil and gas development would occur in 

low constraint soils that pose mostly single and minor limitations to successful reclamation and 

revegetation. 

DEIS 4-79 July 2010
Effective reclamation of the No Action Alternative implementation would be challenged by the following 

constraint factors. 

• Steep slopes (greater than 20 percent slopes), regardless of a soils inherent erodibility (K-factor), 

could exacerbate runoff and accelerate erosion by further exposing soil materials to water erosion 

forces through removal of protective vegetation and soil loosening and/or compaction. Soil loss from 

accelerated erosion could in turn result in less successful revegetation due to loss of growth media 

and exposure of less suitable media, subsoil, and geologic materials. 

• Sloping to moderately steep slopes (8 to 20 percent slopes) combined with a higher erodibility of soil 

also could exacerbate runoff and accelerate erosion by further exposing soil materials to water erosion 

forces through removal of protective vegetation and soil loosening and/or compaction. Again, soil loss 

from accelerated erosion and reduction in growth media likely would result in less successful 

revegetation. 

• Shallow/rocky/droughty soils, when disturbed by vegetation removal and excavation, could pose 

challenges to timely reclamation due to a limited moisture and nutrient holding capacity and 

availability, especially under arid, drought conditions. 

• Saline and/or sodic soils, when disturbed by vegetation removal and excavation, also could pose 

challenges to timely reclamation due to: 

− Presence of soluble calcium, magnesium, and sodium salts in elevated soil conductivity levels in 

excess of 4 decisiemen per meter, which may exacerbate droughty conditions by the salts 

absorbing available soil moisture or otherwise making soil moisture unavailable to plants; 

− Presence of elevated adsorbed sodium levels in comparison to calcium and magnesium levels 

measured as a level equal to or in excess of a sodium absorption ratio of 12, which can cause soil 

aggregates to breakdown and soil particles to disperse resulting in reduced infiltration and 

permeability, which causes a droughty growth medium with limited air exchange; and 

− A combination of both saline and sodic conditions, which together would further limit successful 

revegetation and reclamation. 

• Wind erodible soils, when disturbed, are more susceptible to entrainment by wind and loss from the 

disturbed location that would result in loss of growth medium for re-establishment of protective plant 

cover. This loss of soil material exacerbates the inherent constraining factors of these mostly sandy, 

droughty, and low nutrient soils in supporting revegetation. 

The amount and duration of anticipated impacts would depend on site-specific soil conditions, the application 

of COAs from previous NEPA decision documents, implementation of SWPP plans for each well/facility as part 

of the APD permitting process, and the ROW grant approval process. 

Approved long-term, life-of-project surface disturbance under the No Action Alternative totals approximately 

2,949 acres. This residual acreage of disturbance assumes successful interim reclamation. Should interim 

reclamation not prove completely successful, those areas with conditions not meeting the criteria would remain 

vulnerable to accelerated erosion and to conditions of reduced vegetative cover and productivity until 

additional measures are implemented and successfully restore soil stability and productivity. 

The goal of post-project reclamation that would involve the decommissioning and removal of surface 

equipment/facilities, recontouring of affected lands, and final reclamation efforts would be to return the affected 

lands to agency- and/or land owner-desired conditions and land uses. Although the residual impact of lost soil 

development would remain, affected soils in some areas would again return to natural soil development 

processes and would support a protective and productive vegetative cover. Should drought conditions persist 

for those areas in the future during final reclamation, the time required for successful reclamation may take 

both additional effort and time. However, other areas may prove more difficult to stabilize and to restore 

DEIS 4-80 July 2010
protective and productive vegetation cover even with persistent monitoring and actions to successfully reclaim 

the area to prevent accelerated soil loss and sedimentation. 

Biological Soil Crusts

Consistent with anticipated impacts to soils, implementation of previously approved actions potentially would 

involve the new disturbance to a maximum of 4,702 acres (2.9 percent) of BSCs within the GNBPA. The exact 

extent of the presence of BSCs across the GNBPA is not known, but they could be present with nearly all soil 

types and landscapes. Therefore, it is assumed that any project-related disturbance could impact BSCs. In 

addition to direct disturbances from construction of oil and gas facilities, BSCs also are vulnerable to other 

activities such as off-road vehicle traffic, livestock grazing, horseback riding, and pedestrian traffic. The fibers 

that comprise the tensile strength of BSCs are weak in comparison to the compressional and/or cutting 

strength of construction equipment, foraging livestock, and big game. The impact of a given surface 

disturbance on BSCs depends on the severity, frequency, timing, and type of disturbance, as well as the 

weather conditions during and after the disturbance (Belnap et al. 2001). BSCs in the GNBPA have been 

disturbed by human activities including prior oil and gas development activities, livestock grazing, and some 

off-road vehicle recreation activities. The implementation of the previously approved oil and gas development 

actions would add up to 4,702 acres of new disturbance to BSCs. Because natural recovery of BSCs in areas 

where the crusts have been severely damaged or lost due to disturbance can take from tens of years to 

hundreds of years, any loss of BSCs would be considered a long-term impact (Belnap et al. 2001). The 

predominately cyanobacterial crusts of the GNBPA are expected to recover within roughly 10 or more years, 

depending on conditions. 

4.9.2 Proposed Action Alternative 

4.9.2.1 Impacts on Soils 

Implementation of the Proposed Action Alternative would result in additional oil and gas development activities 

beyond those activities previously approved in the GNBPA. The Proposed Action would involve the new 

disturbance of 12,658 acres (7.8 percent) of the 162,911-acre GNBPA due to access road construction, drilling 

and completion, production facilities construction, and linear pipeline facilities construction. Reclaimable new 

disturbance under interim reclamation goals (Appendix E) would total approximately 4,731 acres (2.9 percent) 

of the GNBPA. Of the anticipated 12,658 acres of new disturbance under the Proposed Action (Table 4.9-1), 

approximately: 

• 11,835 acres (93.5 percent) of the new disturbance from approved oil and gas development would 

occur in high constraint soils that pose mostly multiple limitations to successful implementation of 

reclamation measures and long-term maintenance of protective and productive vegetative cover; 

• 380 acres (3 percent) of new disturbance from approved oil and gas development would occur in 

moderate constraint soils that pose again mostly multiple, but less severe limitations to successful 

reclamation and long-term maintenance of vegetative cover; and 

• 443 acres (3.5 percent) of new disturbance from approved oil and gas development would occur in 

low constraint soils that pose mostly single and minor limitations to successful reclamation and 

revegetation. 

The affected soil constraint types and factors are as described for the No Action Alternative. The amount and 

duration of anticipated impacts would depend on the site-specific locations of proposed facilities. As previously 

described, total avoidance of constraining soil types in siting facilities likely would not be achievable. 

To minimize impacts to soils, KMG has committed to specific design features (Appendix A) under the 

following soils-related BMPs, per the requirements in BLM IM No. 2007-021: 

• Interim reclamation of well locations and access roads soon after the well is put into production. 

DEIS 4-81 July 2010
• Design and construction of all new roads to a safe and appropriate standard, “no higher than 

necessary,” to accommodate their intended use. 

• Final reclamation and recontouring of all disturbed areas, including access roads, to the original 

contour or a contour that blends with the surrounding topography. 

The goals/objectives and specific measures to be implemented to achieve these requirements are detailed in 

Appendix A. The effect of these measures would be to minimize extent of new disturbance for construction, to 

effectively stabilize disturbed soil materials and control accelerated erosion from constructed surface facilities 

and from both interim-reclaimed and final-reclaimed areas, and to initiate restoration of protective and 

productive vegetative cover for the duration of interim reclamation and for final reclamation of postconstruction, abandoned/decommissioned areas of soil disturbance. Final reclamation requirements would be 

determined as part of the site-specific APD-approval process. 

As previously noted under the No Action Alternative, disturbed soils would return to natural soil development 

processes in some areas, and would support a protective and productive vegetative cover within a few years, 

assuming adequate precipitation. Should precipitation be limiting, soil recovery would take longer. However, as 

previously noted, stabilizing and restoring acceptable cover (at least 75 percent or greater of adjacent natural 

vegetative cover) may prove more challenging in other areas. Further evaluation of these areas may be 

necessary to determine if re-seeding or other actions would be required to improve reclamation success 

(Appendix E). 

This analysis assumes that the application of the Reclamation Plan (Appendix E) would be applied on all 

federal and non-federal lands, and that accidental releases of contaminants to soils would be mitigated in 

compliance with required SPCCP. 

Biological Soil Crusts

Consistent with anticipated impacts to soils, implementation of the Proposed Action potentially would involve 

the new disturbance to a maximum of 12,658 acres (7.8 percent) of BSCs within the GNBPA in addition to 

disturbances to BSCs associated with past and ongoing activities. As part of topsoil removal and storage for 

use in later reclamation, BSCs would be excavated as part of the topsoil layer salvaged prior to construction of 

project-related facilities (roads, pads, and underground pipelines). Some portion of the salvaged BSCs would 

survive on topsoil stockpiles. Where surface pipelines are laid on undisturbed surface, wheeled or track 

vehicles likely would compress any BSCs present, resulting in damage and possible loss of BSCs. Crust cover 

likely would be restored with a few years (cyanobacterial species) by recovery of the affected crusts or by 

migration of BSC species into the affected area from adjacent undisturbed surfaces. 

4.9.2.2 Mitigation and Mitigation Effectiveness 

No additional mitigation is recommended for soils. 

4.9.2.3 Residual Impacts 

Long-term, life-of-project surface disturbance under the Proposed Action Alternative totals approximately 

7,927 acres. Residual impacts to soils would be limited to the loss of pedogenic development of the soil profile 

and to some added soil loss for a period of potential accelerated erosion in disturbed areas while implemented 

reclamation measures take effect. Excessive soil compaction also may alter soil conditions resulting in the loss 

of pre-disturbance soil profile development. BSCs would be damaged or lost for the life of the project until 

reclamation efforts stabilize soil conditions where BSCs can re-establish in spaces between establishing 

vascular plants. Although subject to the amount and timing of precipitation, successful reclamation for most 

areas resulting from implementation of appropriate soil reclamation measures (Appendix E) would mitigate 

other key soil conditions of affected, disturbed soils to stabilize the soil materials, thus preventing accelerated 

soil erosion, loss, and down-gradient sedimentation. It also would restore protective vegetative cover and 

productivity that benefit other environmental resources. Some remaining areas may pose extended challenges 

DEIS 4-82 July 2010
to successful reclamation. Some accelerated soil loss and sedimentation would occur into the future until 

subsequent measures were applied that prove effective. 

4.9.3 Resource Protection Alternative 

4.9.3.1 Impacts on Soils 

Implementation of the Resource Protection Alternative would result in additional oil and gas development 

activities beyond those activities previously approved in the GNBPA. The Resource Protection Alternative 

would involve the new disturbance of 8,147 acres (5.0 percent) of the 162,911-acre GNBPA due to access 

road construction, drilling and completion, production facilities construction, and linear pipeline facilities 

construction. Reclaimable new disturbance under interim reclamation would total approximately 3,387 acres 

(2.1 percent) of the GNBPA. Of the anticipated 8,147 acres of new disturbance under the Resource Protection 

Alternative (Table 4.9-1), approximately: 

• 7,618 acres (93.5 percent) of the new disturbance from approved oil and gas development would 

occur in high constraint soils that pose mostly multiple limitations to successful implementation of 

reclamation measures and long-term maintenance of protective and productive vegetative cover; 

• 244 acres (3 percent) of new disturbance from approved oil and gas development would occur in 

moderate constraint soils that pose again mostly multiple, but less severe limitations to successful 

reclamation and long-term maintenance of vegetative cover; and 

• 285 acres (3.5 percent) of new disturbance from approved oil and gas development would occur in 

low constraint soils that pose mostly single and minor limitations to successful reclamation and 

revegetation. 

The affected soil constraint types are as described for the No Action Alternative. Although the amount of 

impact disturbance would be reduced in comparison to the Proposed Action, the duration of anticipated 

impacts would be similar to the Proposed Action and would depend on the site-specific locations of proposed 

facilities. Constraints on achieving both interim and final reclamation success would be similar to those 

described for the Proposed Action. As previously noted under the Proposed Action Alternative, disturbed soils 

would return to natural soil development processes in some areas, and would support a protective and 

productive vegetative cover within a few years, assuming adequate precipitation. Should precipitation be 

limiting, soil recovery would take longer. However, stabilizing and restoring acceptable cover (at least 

75 percent or greater of adjacent natural vegetative cover) may prove more challenging in other areas. Further 

evaluation of these areas may be necessary to determine if re-seeding or other actions would be required to 

improve reclamation success (Appendix E). As previously described, total avoidance of constraining soil types 

in siting facilities likely would not be achievable. 

To minimize impacts to soils, KMG has committed to specific ACEPMs (Appendix A) for the three soilsrelated BMPs described for the Proposed Action Alternative. 

Biological Soil Crusts

Consistent with anticipated impacts to soils, implementation of the Resource Protection Alternative potentially 

would involve the new disturbance to a maximum of 8,147 acres (5.0 percent) of BSCs within the GNBPA. 

Impacts and recovery would be similar to those described for the Proposed Action. 

The analysis for this alternative assumes that the application of the Reclamation Plan (Appendix E) would be 

applied on all federal and non-federal lands and accidental releases of contaminants to soils would be 

mitigated in compliance with required SPCCPs. 

DEIS 4-83 July 2010
4.9.3.2 Mitigation and Mitigation Effectiveness 

SOIL-1 Where feasible and immediately prior to topsoil salvage ahead of facilities construction (soil 

disturbance), the near surface layers of soils containing BSCs would be salvaged separately from 

the underlying topsoil layer. The salvaged BSC materials would then be transported and spread as 

inoculum onto re-contoured surfaces undergoing interim or final reclamation or onto salvaged 

topsoil storage piles to support their stabilization until used in reclamation. 

4.9.3.3 Residual Impacts 

Long-term, life-of-project surface disturbance under the Resource Protection Alternative totals approximately 

4,760 acres. As described for the Proposed Action Alternative, post-project reclamation would restore most 

areas to stabile and productive soil conditions and lands to agency- and/or land owner-desired land uses. 

Residual soil impacts would again be limited to loss of pedogenic development and of some soil material due 

to accelerated erosion until control measures are implemented and take effect. Some remaining areas may 

pose extended challenges to successful reclamation. Some accelerated soil loss and sedimentation would 

occur into the future until subsequent measures were applied that prove effective. 

As described for the Proposed Action, BSCs would be damaged or lost for the life of the project. However, 

where conditions permit and BSCs are present, the separate salvage of the BSC layer and its use as inoculum 

for other areas undergoing reclamation or for salvaged topsoil pile surfaces to aid in stabilization would enable 

the effective use of those BSCs disturbed. Such use in aiding reclamation and stabilization would be a 

productive use of the BSCs versus serious damage or loss of the resource. 

4.9.4 Optimal Recovery Alternative 

4.9.4.1 Impacts on Soils 

Implementation of the Optimal Recovery Alternative would result in additional oil and gas development 

activities beyond those activities previously approved in the GNBPA. The Optimal Recovery Alternative would 

involve the new disturbance of 42,620 acres (26.2 percent) of the 162,911-acre GNBPA due to access road 

construction, drilling and completion, production facilities construction, and linear pipeline facilities 

construction. Reclaimable new disturbance under interim reclamation would total approximately 13,189 acres 

(8.1 percent) of the GNBPA. Of the anticipated 42,620 acres of new disturbance under the Optimal Recovery 

Alternative (Table 4.9-1), approximately: 

• 39,849 acres (93.5 percent) of the new disturbance from approved oil and gas development would 

occur in high constraint soils that pose mostly multiple limitations to successful implementation of 

reclamation measures and long-term maintenance of protective and productive vegetative cover; 

• 1,279 acres (3 percent) of new disturbance from approved oil and gas development would occur in 

moderate constraint soils that pose again mostly multiple, but less severe limitations to successful 

reclamation and long-term maintenance of vegetative cover; and 

• 1,492 acres (3.5 percent) of new disturbance from approved oil and gas development would occur in 

low constraint soils that pose mostly single and minor limitations to successful reclamation and 

revegetation). 

The affected soil constraint types are as described for the No Action Alternative. The amount and duration of 

anticipated impacts would increase over the Proposed Action Alternative. Duration of drilling and construction 

would extend from approximately 10 years to an estimated 20 years. Actual impacts would depend on the 

site-specific conditions and locations of proposed facilities. Constraints on achieving both interim and final 

reclamation success would be similar to those described for the Proposed Action. As previously described, 

total avoidance of constraining soil types in siting facilities likely would not be achievable. 

DEIS 4-84 July 2010
Biological Soil Crusts

Consistent with anticipated impacts to soils, implementation of the Optimal Recovery Alternative potentially 

would involve the new disturbance to a maximum of 42,620 acres (26.2 percent) of BSCs within the GNBPA. 

Other than the greater acreage of disturbance, the types of impacts and recovery would be similar to those 

described for the Proposed Action. 

4.9.4.2 Mitigation and Mitigation Effectiveness 

No additional mitigation is recommended for the Optimal Recovery Alternative. 

4.9.4.3 Residual Impacts 

Long-term, life-of-project surface disturbance under the Optimal Recovery Alternative totals approximately 

29,431 acres. As described for the Proposed Action Alternative, post-project reclamation would restore stabile 

and productive soil conditions for most areas and lands to agency- and/or land owner-desired land uses. 

Residual soil impacts would again be limited to loss of pedogenic development and of some soil material due 

to accelerated erosion until control measures are implemented and take effect. Some remaining areas may 

pose extended challenges to successful reclamation. Some accelerated soil loss and sedimentation would 

occur into the future until subsequent measures were applied that prove effective. As described for the 

Proposed Action, BSCs either would be damaged or lost for the life of the project until stable soil conditions 

where BSCs can establish in spaces between establishing vascular plants. 

4.9.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Implementation of the proposed project and recovery of the hydrocarbon resources would result in limited 

accelerated erosion and minor soil loss during road and facilities construction and long-term loss of 

productivity of vegetative cover and forage for the life of the project. However, implementation of reclamation 

measures would restore and possibly enhance the post-project, long-term productivity of affected soils, 

assuming regular monitoring for effectiveness is maintained and as necessary, the appropriate response of 

applying additional and/or new measures is undertaken to achieve successful reclamation. 

4.9.6 Irreversible/Irretrievable Commitment of Resources 

No irreversible commitments are anticipated for soil resources. There would be an irretrievable loss of 

productive soils due to construction of well pads and associated production facilities during the operational life 

of the project. Upon removal of production facilities and assuming effective reclamation, these impacts would 

be reversible. For most areas, accelerated erosion would be controlled and vegetative productivity would be 

restored following reclamation. The remaining areas posing extended challenges to achieving successful soil 

stabilization and control over soil loss and sedimentation would experience an irretrievable loss of soil material 

until effective stabilization of disturbed soils are attained. 

DEIS 4-85 July 2010
4.10 Transportation and Access 

The greatest impact to transportation resources would be increased traffic and use of new and existing roads 

through additional trips generated during construction and operation. These would be greatest during the 

drilling and completion phases of the project. 

4.10.1 No Action Alternative 

Under the No Action Alternative, drilling and completion of development wells and infrastructure would 

continue under the authority and COAs of existing NEPA decision documents. Resource protection would be 

provided by mitigation as required under those previous NEPA documents, lease stipulations, and site-specific 

reviews. 

4.10.1.1 Impacts on Transportation and Access 

Under the No Action Alternative, impacts to the transportation infrastructure in and around the GNBPA would 

include the current level of traffic and road use on the existing 391 miles of roads that are currently used in 

association with oil and gas development. These roads provide access to the approximately 2,664 existing and 

approved wells. Additionally, 276 miles of access roads would be constructed to facilitate construction and 

operation of the approved wells. It is anticipated that that under this alternative, access would not be blocked in 

the area, but would increase due to additional roads that would be constructed. 

Based on input from KMG, there were 3 spills (2 minor) in 1 year that occurred in conjunction with servicing 

existing wells. This results in an accident probability figure of 1.6 percent per well, or 0.02 accidents for each 

well serviced. Based on this estimate, there would be approximately 22 accidents annually for the 1,102 new 

wells under the No Action Alternative. The majority of these accidents would be minor. 

4.10.2 Proposed Action Alternative 

Under the Proposed Action Alternative, 3,675 wells would be constructed at a rate of 358 wells per year over a 

10-year timeframe, including associated infrastructures (e.g., compressor stations, gathering pipelines, access 

roads). KMG would implement development using environmental protection measures consistent with the 

ACEPMs (Appendix A) and the Reclamation Plan (Appendix E). 

4.10.2.1 Impacts on Transportation and Access 

New roads would be constructed as needed to provide access to the proposed new wells. Each proposed new 

well would require an average of 0.25 mile of new or upgraded road construction. In addition to the 

approximately 391 miles of roads already in place to service existing facilities, an estimated 760 miles of new 

roads would be necessary to access the 3,675 new wells in the Proposed Action Alternative. 

Transportation resources also would be impacted through additional vehicle trips generated. These would be 

greatest during the drilling and completion phases of the project. The projected maximum daily increase in 

trips per day for the Proposed Action Alternative would be 25 heavy truck trips and 10 light truck trips per well 

(times 15 wells at a time), during well drilling and completion. This would result in an additional traffic volume of 

525 total trips a day during peak well completion. When this number is added to the existing traffic counts for 

the No Action Alternative (Table 3.10-2), the resulting new potential average daily traffic count still falls within 

the likely capacity for maintained gravel roads within the GNBPA. As described in the affected environment 

transportation section (Section 3.10), some of the trucks that would be used during operation would be 

supertankers, with a length up to 105 feet. More information regarding supertankers can be found in the 

UDOT’s Highway Freight Traffic Associated with the Development of Oil and Gas Wells in the Uinta Basin

(Kuhn 2006). 

Neither the UDOT nor the Uintah County Roads Department has specific information on the capacity of 

maintained gravel county roads in the GNBPA. However, UDOT was able to verbally confirm that a 

DEIS 4-86 July 2010
28-foot-wide, paved, two-lane rural road with no turn lanes would have a Level of Service rating of A, and a 

corresponding capacity up to 6,000 vehicles a day. Currently, SR 88 and SR 45 both fit this designation and, 

as noted in Section 3.10, both have average daily traffic loads well within their designated capacity range. 

UDOT assumed that the capacity range for a maintained gravel road would be less than a rural paved 

two-lane county road, but was not able to cite a specific capacity range. Table 4.10-1 details the per well 

volume of heavy and light truck activity that can be expected during the different developmental phases of the 

project. 

Table 4.10-1 Anticipated Vehicle Activity for GNBPA, Proposed Action Alternative

Phase Heavy Truck Round Trips Light Truck Round Trips 

Construction 7 39

Drilling 81 93

Completion 187 39 

Facilities 5 11

Gathering Line 0 24 

Interim Reclamation 2 9 

Total 282 215 

During wellfield operation, it is estimated there would be a total of 2.4 vehicle miles of light truck traffic per well 

per day and 2.8 vehicle miles of heavy truck traffic per well per day. Vehicle miles driven per well per day was 

calculated taking into account well pad spacing, barrels of produced water, and capacity of water trucks, as 

well as recent data regarding miles associated with well servicing. The light truck traffic would include pumpers 

(maintenance workers) and workover crews, while heavy truck traffic would consist of water trucks hauling 

produced water from each well. The total amount of vehicle miles traveled for the full production aspect of this 

alternative would be approximately 5.7 vehicle miles per well multiplied by the number of wells, or 20,948 total 

vehicle miles. 

An increase in traffic within the GNBPA and the surrounding transportation network would be evident during 

the life of the project. Based on input from KMG, there were 3 spills (2 minor) in 1 year that occurred in 

conjunction with servicing existing wells. This results in an accident probability figure of 1.6 percent per well, or 

0.02 accidents for each well serviced. Based on this estimate, there would be approximately 58 accidents 

annually once all of the 3,675 wells in the Proposed Action have been drilled and are operating. The majority 

of these accidents would be minor. 

To minimize impacts, KMG would attempt to use the existing road network to the extent practical. Furthermore, 

the use of telemetry to monitor wells would reduce the frequency of well visits; thereby reducing the amount of 

potential vehicle traffic with the GNBPA. KMG has developed a Draft Transportation Plan (Appendix C) that 

details the procedures intended to minimize construction of roads needed to implement project activities. KMG 

would submit the final plan to the BLM prior to the initiation of project activities. 

4.10.2.2 Mitigation and Mitigation Effectiveness 

No mitigation efforts have been identified for the Proposed Action Alternative. 

4.10.2.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for this 

alternative. 

DEIS 4-87 July 2010
4.10.3 Resource Protection Alternative 

The Resource Protection Alternative would be similar to the Proposed Action, except that it limits the maximum 

number of new well pad locations to 1 pad per 40 acres (maximum of 16 well pads per section). Under this 

alternative, 3,675 new wellbores would be constructed at a rate of 358 wells per year over a 10-year 

timeframe, including associated infrastructures (e.g., compressor stations, gathering pipelines, access roads). 

4.10.3.1 Impacts on Transportation and Access 

The greatest impact to transportation resources would be through the additional vehicle miles driven. The total 

number of vehicle miles driven at full production would be approximately the same as the Proposed Action. 

While well pad spacing at 40 acres would mean more miles driven between each pad, multiple well bores on 

single pads also would reduce how many total stops need to be made, reducing vehicle miles driven. An 

estimated 594 miles of new roads would be necessary to access the 3,675 new wells. Each new road would 

be 0.40 mile long. Impacts would be greatest during the drilling and completion phases of setting wells. Since 

this alternative includes development of multiple wells per pad, fewer new access roads would be needed and 

impacts under this alternative would be less than the Proposed Action Alternative. 

In addition, an increase in traffic within the GNBPA and the surrounding transportation network would be 

evident during the life of the project. The potential spill rate during servicing of wells under the Resource 

Protection Alternative would be the same as for the Proposed Action Alternative. 

4.10.3.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Resource Recovery Alternative. 

4.10.3.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for this 

alternative. 

4.10.4 Optimal Recovery Alternative 

Under the Optimal Recovery Alternative, 13,446 wells would be constructed and operated at a rate of 

672 wells per year over a 20-year timeframe, including associated infrastructures (e.g., compressor stations, 

gathering pipelines, access roads). This alternative is designed to maximize recovery of the gas resource by 

increasing the number of wellbores to achieve 10-acre surface and downhole spacing throughout the GNBPA. 

4.10.4.1 Impacts on Transportation and Access 

The Optimal Recovery Alternative would make the greatest impact to transportation resources through 

additional vehicle miles driven. The total amount of vehicle miles driven at full production under this alternative 

would be 59,162 miles per day, or approximately 4.4 miles per well. There are less vehicle miles driven per 

well due to the closer spacing of the well pads; however, the overall greater number of wells leads to a 

dramatic increase in the total amount of vehicle miles driven. An estimated 1,627 miles of new roads would be 

necessary to access the 12,812 new well pads. Each new road would be approximately 0.127 mile long to 

service each new well. Impacts would be greatest during the drilling and completion phases of setting wells. 

In addition, an increase in the number of accidents would be evident during the life of the project. There were 

3 spills (2 minor) that occurred in conjunction with servicing existing wells resulting in an accident probability 

figure of 1.6 percent per well, or for each well serviced there would be 0.02 accidents. Assuming a similar rate 

for the 12,812 new well pads for this alternative, this would lead to 201 accidents annually once all the wells 

have been drilled and are operating. It is assumed the majority of these accidents would be minor. 

DEIS 4-88 July 2010
4.10.4.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Optimal Recovery Alternative. 

4.10.4.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for this 

alternative. 

4.10.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Over the 30- to 50-year life of the project, a more extensive road network would be in place for enhanced 

recreational access and other uses. Over the long term, some minor well pad roads may be reclaimed, 

resulting in a reduction in the transportation network in the GNBPA and reduced access to the area. 

4.10.6 Irreversible/Irretrievable Commitment of Resources 

Project-related traffic increases would continue for the life of the project, but would be reversible and would 

cease at project closure. Project-related impacts due to development of new roads would be reversible, should 

it be determined to be desirable in the future. It is anticipated that there would be no irretrievable impacts 

associated with the action alternatives. 

DEIS 4-89 July 2010
4.11 Vegetation 

The primary issues associated with vegetation resources include direct and/or indirect impacts to special 

status plant species, riparian/wetland habitats, forage production rates in rangeland areas, and impacts 

associated with the introduction and/or spread of noxious weeds and invasive species (see specific resource 

section for further discussion). 

4.11.1 No Action Alternative 

4.11.1.1 Impacts on Vegetation 

As permitted under existing authorizations, approximately 4,702 acres of vegetation would be disturbed by 

new activity under the No Action Alternative (Table 2.4-1). Conceptual locations of all wells analyzed for the 

No Action Alternative, including existing wells as well as those that have been approved but not yet drilled, are 

shown in Figure 2.4-1. Estimated acreage of surface-related disturbance associated with new activity under 

the No Action Alternative within the GNBPA is identified by vegetation cover type in Table 4.11-1. Because 

exact locations of new surface disturbance-related activities are unknown for the No Action Alternative, the 

impacts to vegetation in the GNBPA were estimated by multiplying the percent of the GNBPA impacted by 

new surface disturbance-related activities by the acreage of each vegetation type within the GNBPA. The 

majority of the disturbance would occur within the salt-desert shrubland and sagebrush shrubland cover types. 

Table 4.11-1 Acreages of Affected Vegetation Under the No Action Alternative 

Vegetation Cover Types Acres1 Percent of GNBPA 

Salt-desert shrubland 1,932 1% 

Sagebrush shrubland 1,663 1% 

Grassland 455 <1%

Cliff/Canyon 217 <1%

Riparian 143 <1%

Pinyon-juniper woodland 82 <1% 

Agriculture 30 <1%

Barren 178 <1%

Developed 2 <1%

Total 4,702 3%

1

 This quantitative assessment is calculated by taking the percent of the GNBPA impacted by new surface disturbance associated with the 

No Action Alternative (3 percent) multiplied by the acreage for each vegetation type within the GNBPA. 

Due to multi-year droughts in the area, the high percentage of soils with characteristics that limit restoration 

(Section 4.9, Soils), and noxious and invasive weed species present in the area, successful reclamation is 

difficult in the Uintah Basin (BLM 2008c). Successful reclamation is defined as re-establishment of a 

sustainable vegetation community with similar species diversity and vegetative cover compared to similar 

undisturbed native vegetative communities (BLM 2009a). In areas with high reclamation constraints (limited 

moisture availability, limiting soils, etc.), almost no revegetation success or natural recolonization (except by 

invasive plant species such as halogeton) has been observed during reconnaissance conducted on currently 

permitted wellsites and associated infrastructure within the last 50 years. 

Herbaceous-dominated plant communities would require a minimum of 10 years to establish adequate ground 

cover to prevent erosion and provide forage for wildlife species and grazing operations. Woody-dominated 

plant communities would require at least 25 to 50 years for shrubs to recolonize the area, while 

re-establishment of mature pinyon-juniper woodlands would require at least 75 to 100 years. The desert shrub, 

perennial grasslands/sagebrush communities, and pinyon-juniper are three vegetative communities that have 

DEIS 4-90 July 2010
lower potential for successful reclamation (BLM 2008c). The desert shrub type is associated with shallow and 

highly saline soils, and has limited moisture availability. The perennial grasslands/sagebrush and pinyonjuniper communities are both highly susceptible to noxious weed invasions. Based on the assumptions for 

reclamation success, all impacts associated with previously approved projects would be considered long-term. 

To minimize impacts, mitigation would be implemented based on environmental protection measures as 

outlined in the existing NEPA documents (Section 2.4); lease stipulations; and all applicable federal, state, 

county, or BLM regulations. 

The following text summarizes the environmental protection measures for vegetation resources common to 

several of the existing NEPA documents. Protection measures from the existing NEPA documents were based 

on applicant-committed measures; previous BLM management guidelines in place when the projects were 

approved; and applicable federal, state, county, or BLM regulations. 

• Monitor and control noxious and invasive weed species through washing of vehicles prior to 

construction, and implementation of a BLM approved weed management plan specific to each project 

under the No Action Alternaive. A pesticide use proposal would be submitted and approved by the 

BLM prior to the application of herbicides. 

• Implement conservation measures for threatened and endangered plant species that include: 

− Pre-project habitat assessments; 

− Site inventories within suitable habitat during the flowering period for the individual species; 

− Avoidance measures such as reducing well pad size, limiting development of new access 

roads, and preventing construction activities and permanent facilities in buffer zones around 

individual plants; 

− Interim and final reclamation of disturbed areas; and 

− Monitoring of occupied habitat near development areas after construction starts for a 

pre-determined time period. 

• Limit impacts to vegetation communities by preventing off-road driving except on designated ROWs. 

• Limit surface disturbance impacts through the use of directional drilling, the co-location of roads and 

utility corridors, and limiting the development of new access roads. 

• Implement interim and final reclamation of disturbed areas. Reclamation measures would include 

reseeding (with native vegetation, if possible), mulching, and erosion control techniques. 

• Development in wetlands would follow the BLM’s riparian policy, which prevents new surface 

disturbance activities within 100 meters (330 feet) of riparian areas unless: 1) there would be no 

practical alternatives, 2) all long-term impacts would be fully mitigated, or 3) the activity would benefit 

or enhance the riparian area. 

Final and interim reclamation would be implemented; however, as discussed above, achieving successful 

reclamation would be difficult. 

Noxious Weeds and Invasive Species

Surface disturbance-related activities associated with the No Action Alternative would result in the introduction 

and/or spread of noxious weeds and invasive species into areas that recently have been disturbed or areas 

that typically lack or have minimal vegetation cover. Within sensitive native plant communities, noxious or 

invasive species potentially would displace less aggressive plant species and colonize habitat suitable for 

special status plant species. Based on reconnaissance observations conducted on currently permitted 

wellsites and associated infrastructure within the last 50 years, almost no revegetation success or natural 

recolonization (except by invasive plant species such as halogeton) was observed in areas with high 

DEIS 4-91 July 2010
rehabilitation constraints. Areas with moderate rehabilitation constraints showed some natural recolonization 

by shrubs (e.g., shadscale), invasion by noxious weeds and invasive species, and occasional evidence of 

re-establishment by seeded species. Areas with the lowest rehabilitation constraints exhibited considerable 

recolonization of native species, invasion by noxious weeds and invasive species, and isolated areas with 

reseeding success (approaching pre-existing plant cover). To mitigate the impacts from the spread and 

establishment of noxious and invasive species, the environmental protection measures outlined above would 

continue to be implemented. The implementation of project-specific weed management plans and the washing 

of vehicles would minimize the spread and establishment of noxious and invasive species into recently 

disturbed areas or areas of minimal vegetation cover. 

Special Status Plant Species

The following impact assessments focus on special status plant species that potentially occur within the 

GNBPA. This includes species listed as federally threatened, endangered, proposed, and/or candidate; BLM 

sensitive species; and State of Utah species of concern. These species are identified in Section 3.11, Special 

Status Plant Species. 

Graham’s Beardtongue 

Graham’s beardtongue occupies 121 acres of potential habitat in the GNBPA. The habitat is located in an area 

of steep slopes and inaccessible cliffs. No existing or approved wells are located within the potential habitat for 

this species. Direct impacts to individuals and populations from the placement of approved facilities would be 

avoided by the implementation of the environmental protection measures summarized above (Section 4.11.1). 

The required environmental protection measures include the implementation of species-specific conservation 

measures such as conducting occurrence and habitat surveys, implementation of dust abatement measures, 

limiting of surface disturbance, and post-construction monitoring. Site-specific project design would avoid 

direct impacts to individual plants, populations, and habitat. 

Indirect impacts to the species include the loss or modification of potential habitat, the spread of noxious and 

invasive weed species, the loss of pollinators, and fugitive dust. Potential indirect impacts would be mitigated 

through the implementation of the species-specific conservation measures described above. In addition, the 

environmental protection measures to mitigate the spread and establishment of noxious and invasive weed 

species would continue to be implemented. Implementation of the conservation measures would limit the loss 

and modification of the species habitat through the use of the minimum buffers and site-specific project design 

to minimize surface disturbance. The implementation of project-specific noxious and invasive weed 

management plans would limit the effects of noxious and invasive weed species on Graham’s beardtongue 

and its pollinators. The implementation of minimum buffers, limiting of surface disturbance, and the use of 

existing roads would limit the effects of fugitive dust on the species. 

Based on the impact analysis of existing NEPA documents, direct impacts to Graham’s beardtongue under the 

No Action Alternative would be avoided and indirect impacts would be minimal through the implementation of 

the species-specific conservation measures, the control and management of noxious and invasive weed 

species, the limiting of surface disturbance, and the use of dust abatement measures. 

Clay Reed-mustard 

A as described in Section 3.11.3, Special Status Plant Species, approximately 322 acres of suitable habitat for 

the clay reed-mustard is located in the GNBPA. No existing or approved wells are located within potential 

habitat for this species. Furthermore, the habitat for the species is located on cliffs that are steep and difficult to 

access, making them unlikely areas for development activities. Direct impacts to individuals and populations 

from the placement of approved wells and facilities would be avoided through site-specific project design and 

DEIS 4-92 July 2010
the implementation of the BLM and USFWS clay reed-mustard conservation measures (Appendix L). These 

conservation measures include: 

• Pre-project habitat assessments; 

• Site inventories within suitable habitat; 

• Minimization of surface impacts through project design; 

• Adherence to a 300-foot minimum buffer between the edge of the surface disturbance and identified 

plants and populations; 

• Limiting of construction activities in occupied habitat from May 1 through June 5; and 

• Flagging avoidance areas before and during construction. 

Indirect impacts to clay reed-mustard include the loss or modification of potential habitat, increased habitat 

fragmentation, the spread and establishment of noxious and invasive weed species, loss of pollinators, 

increased roadway infrastructure, and fugitive dust. Indirect impacts would be mitigated through the 

implementation of the clay reed-mustard conservation measures described above. Other measures to reduce 

indirect impacts include the implementation of project-specific noxious and invasive weed management plans, 

the use of existing roads where possible, minimizing surface disturbance, and dust abatement measures. The 

implementation of the clay reed-mustard conservation measures would limit the loss and modification of the 

species habitat through the use of the minimum buffers and site-specific project design to minimize surface 

disturbance. The implementation of project-specific noxious and invasive weed management plans would limit 

the effects of noxious and invasive weed species on the clay reed-mustard and its pollinators. Using existing 

roadways where possible, limiting surface disturbance, and the use of minimum buffers would limit the effects 

of fugitive dust on the species. 

Based on the impact analysis of previous NEPA decision documents, direct impacts to clay reed-mustard 

under the No Action Alternative would be avoided and indirect impacts would be minimized through the 

implementation of the clay reed-mustard conservation measures, the control and management of noxious and 

invasive weed species, the minimization of surface disturbance, and the use of dust abatement measures. 

Uinta Basin Hookless Cactus 

Based on the habitat modeling for the Uinta Basin hookless cactus described in Section 3.11.3, Special Status 

Plant Species, a total of approximately 54,618 acres of potential habitat for this species is located in the 

GNBPA. A qualitative assessment of the amount of Uinta Basin hookless cactus habitat that would be 

impacted by the No Action Alternative is calculated by multiplying the percentage of the GNBPA impacted by 

new surface disturbance associated with the No Action Alternative by the acreage of Uinta Basin hookless 

cactus habitat in the GNBPA. As estimated on Table 2.4-1, approximately 3 percent of the GNBPA would be 

impacted by new surface disturbances associated with the No Action Alternative. Therefore, approximately 

1,576 acres of potential habitat would be impacted by new activity under the No Action Alternative. When 

combined with the estimated existing disturbance, a total of approximately 4,180 acres of Uinta Basin hookless 

cactus potential habitat could be disturbed under the No Action Alternative. Direct impacts to individuals and 

populations from the placement of existing and approved wells and facilities would be avoided through 

site-specific project design and the implementation of the BLM and USFWS Uinta Basin hookless cactus 

conservation measures (Appendix L). These conservation measures include: 

• Pre-project habitat assessments; 

• Site inventories within suitable habitat; 

• Minimization of surface impacts through project design; 

• Adherence to a 100-foot minimum buffer between the edge of the surface disturbance and identified 

plants and populations; 

DEIS 4-93 July 2010
• Flagging of avoidance areas before and during construction; and 

• Avoid concentrating water flows or sediments into occupied habitat. 

Indirect impacts to Uinta Basin hookless cactus include a higher potential for illegal collection due to increased 

access to the species, loss or modification of potential habitat, increased habitat fragmentation, spread and 

establishment of noxious and invasive weed species, the loss of pollinators, increased fugitive dust, and 

increased sedimentation due to changes in surface water flow. Previous NEPA decision documents identified 

the majority of the indirect impacts as resulting from the development of access roads. 

Additionally, Uinta Basin hookless cactus does not tolerate heavy sediment. Changes in surface water flow 

and surface disturbances associated with construction activities could lead to increased soil erosion and 

stormwater runoff. 

Indirect impacts would be mitigated through the implementation of the Uinta Basin hookless cactus 

conservation measures, project-specific noxious and invasive weed management plans, dust abatement 

measures, minimization of surface disturbance, and the use of BMPs to reduce erosion. The loss and 

modification of the species habitat would be mitigated through the implementation of the species-specific 

conservation measures, the use of the minimum buffers, and site-specific project design to minimize surface 

disturbance. The effects of noxious and invasive weed species would be mitigated through the implementation 

of project-specific noxious and invasive weed management plans. Minimizing surface disturbance and the use 

of minimum buffers would limit the effects of fugitive dust on the species. The use of BMPs to reduce erosion 

would limit sedimentation in stormwater runoff and its associated effects on the species. 

Based on the impact analysis of previous NEPA decision documents, direct impacts to the Uinta Basin 

hookless cactus under the No Action Alternative would be avoided and indirect impacts would be minimized 

through the implementation of the Uinta Basin hookless cactus conservation measures, the control and 

management of noxious and invasive weed species, the minimization of surface disturbance, and the use of 

dust abatement measures. 

4.11.2 Proposed Action Alternative 

Under the Proposed Action Alternative, 3,675 wells would be constructed and operated at a rate of 358 wells 

per year over a 10-year timeframe, including associated infrastructures (e.g., compressor stations, gathering 

pipelines, access roads). KMG would implement oil and gas development using environmental protection 

measures consistent with the ACEPMs (Appendix A) and the Reclamation Plan (Appendix E) and the 

Integrated Weed Management Plan (Appendix J). 

4.11.2.1 Impacts on Vegetation 

Under the Proposed Action Alternative, the project would directly remove or impact a total of approximately 

12,658 acres of vegetation. Table 4.11-2 identifies estimated acreage of project-related disturbance by 

vegetation cover type within the Proposed Action area. Precise surface disturbance locations have not been 

determined for the Proposed Action. To estimate the impacts to vegetation in the GNBPA, the percent of the 

total study area impacted by new surface disturbance under the Proposed Action was multiplied by the 

acreage of each vegetation type within the GNBPA. In addition, vegetation along existing access roads would 

be affected (e.g., reduction in growth rate) as a result of dust deposition. 

Table 4.11-2 Acreages of Affected Vegetation under the Proposed Action Alternative 

Vegetation Cover Types Acres1 Percent of GNBPA 

Salt-desert shrubland 5,279 3% 

Sagebrush shrubland 4,548 3% 

Grassland 1,246 1%

DEIS 4-94 July 2010
Table 4.11-2 Acreages of Affected Vegetation under the Proposed Action Alternative 

Vegetation Cover Types Acres1 Percent of GNBPA 

Cliff/Canyon 593 <1%

Riparian 189 <1%

Pinyon-juniper woodland 225 <1% 

Agriculture 81 <1%

Barren 490 <1%

Developed 7 <1%

Total 12,658 8% 

4-95

1

 This quantitative assessment is calculated by taking the percent of the GNBPA impacted by new surface disturbance associated with the 

Proposed Action Alternative (8 percent) multiplied by the acreage for each vegetation type within the GNBPA. 

Project-related activities would result in the conversion of shrub and tree-dominated vegetation cover types to 

grass/forb-dominated vegetation in the short term. Although vegetation cover types would recover at varying 

rates, overall community recovery is anticipated to be long-term (i.e., 10 to 100 years) due to soil reclamation 

constraints (Section 4.9, Soils), low regional annual precipitation rates, multi-year droughts, and the invasion 

and spread of noxious and invasive weed species. Vegetation community recovery would be achieved through 

successful reclamation. In areas with high reclamation constraints such as limited moisture availability or 

limiting soils, almost no revegetation success or natural recolonization (except by invasive plant species such 

as halogeton) has been observed during reconnaissance conducted on currently permitted wellsites and 

associated infrastructure within the last 50 years. 

As described for the No Action Alternative, it is estimated that herbaceous-dominated plant communities would 

require a minimum of 10 years to establish adequate ground cover to prevent erosion and provide forage for 

wildlife species and grazing operations. Woody-dominated plant communities would require at least 25 to 

50 years for shrubs to recolonize the area while re-establishment of mature pinyon-juniper woodlands would 

require at least 75 to 100 years. The desert shrub, perennial grasslands/sagebrush, and pinyon-juniper 

communities would be especially difficult to reclaim (BLM 2008c). The desert shrub type is associated with 

shallow and highly saline soils, and has limited moisture availability. The perennial grasslands/sagebrush and 

pinyon-juniper communities are both highly susceptible to noxious weed invasions when disturbed by oil and 

gas activities in combination with other surface disturbances such as grazing or chaining and burning activities. 

To stabilize the growth media, reduce soil erosion, and minimize the potential for the establishment of noxious 

weeds and invasive species, KMG would implement interim and final reclamation techniques as defined in the 

ACEPMs (Appendix A) and the Reclamation Plan (Appendix E). Reclamation as described in the 

Reclamation Plan (Appendix E) would occur in three steps (short-term, interim, and final) depending on the 

project phase. Short-term reclamation of disturbed areas would take place as soon as construction starts, 

interim reclamation would start once construction is completed and production activities commence, and final 

reclamation would commence after production and operation of the project ends. During construction, 

short-term reclamation of disturbed areas would seek to stabilize areas that have been disturbed and protect 

areas adjacent to the disturbed areas from further degradation. Interim reclamation would occur on areas not 

needed for production activities including access road ROWs, portions of well pads, and linear features. The 

focus of interim reclamation would be to stabilize and revegetate disturbed areas to create sustainable 

vegetative communities. The goal of final reclamation as defined in the Reclamation Plan would be to return 

the disturbed areas to approximately pre-construction condition, and maintain a stable and productive 

condition compatible with previous land uses. Interim and final reclamation techniques to be implemented 

include the control and monitoring of noxious weeds after surface disturbance; erosion techniques to control 

stormwater runoff and wind erosion; and adherence with all applicable federal, state, county, and BLM 

regulations. 

DEIS July 2010
Sagebrush habitat covers 35 percent of the GNBPA. This habitat type is in decline throughout the region 

(BLM 2008b) due to lack of periodic fire and the invasion of cheatgrass (BLM 2007e). The lack of periodic fire 

allows the pinyon-juniper to encroach into the sagebrush habitat. The Proposed Action Alternative would 

impact 4,548 acres of sagebrush habitat. See Section 4.15, Wildlife and Fisheries Resources, for a discussion 

of impacts for wildlife from the loss of sagebrush habitat. 

Noxious Weeds and Invasive Species

Under the Proposed Action Alternative, a total of approximately 12,658 acres of vegetation would be removed 

or disturbed (Table 4.11-2). Following surface disturbance activities, noxious weeds and invasive species may 

readily colonize areas that typically lack or have minimal vegetation cover. It is anticipated that populations of 

weedy annual species (e.g., halogeton, cheatgrass) may become established in localized areas for extended 

periods of time. 

In addition, surface disturbance-related activities may result in the introduction and/or spread of noxious weeds 

and invasive species within sensitive native plant communities, potentially displacing less aggressive plant 

species and colonizing suitable habitat for special status plant species. Noxious and invasive weed species 

compete with native plants, and are especially an issue for species with low population numbers and diversity 

(i.e., threatened and endangered species). Noxious and invasive weed species can degrade and modify native 

communities, reduce resources for native and special status species (e.g., moisture, soil nutrients, and light), 

and impact species pollinators. The competition from noxious and invasive species can reduce special status 

species population size, and lead to potential extirpation for highly threatened species. 

KMG would implement weed control methods as described in the ACEPMs (Appendix A), the Reclamation 

Plan (Appendix E), and the Integrated Weed Management Plan (Appendix J) to reduce the establishment 

and/or spread of noxious weeds. Pre-construction surveys for noxious and invasive species would be 

conducted. Survey information collected would include species name, GPS location of weed infestations, 

percent cover, and approximate size of weed infestations. Additional weed control and prevention measures 

include the washing of vehicles and equipment, annual monitoring, and herbicide spraying. 

Herbicide spraying would be conducted following all applicable state and federal laws regarding chemical use, 

adverse weather, chemical storage, and chemical drift. Further guidelines and protocols for herbicide spraying 

on BLM land is provided in the Final BLM Vegetation Treatment Using Herbicides Programmatic EIS (BLM 

Vegetation EIS) (BLM 2007f). Standard operating procedures for herbicide spraying include buffers for 

sensitive areas such as riparian and wetland areas and threatened and endangered species habitat, timing 

restrictions, and safety protocols. 

Chemical weed treatments can have unintended impacts on the threatened and endangered species through 

direct spray, herbicide drift, surface runoff from upslope treatment sites, accidental spills, and the loss of 

pollinators (BLM 2007f). The biggest threat to threatened and endangered species in the GNBPA is from 

herbicide drift. The risk from herbicide drift is low, and mitigation measures can be taken to reduce risk of drift 

in threatened and endangered species habitat areas. In the BLM Vegetation EIS, standard operating 

procedures for herbicide spraying include: 

• Surveying for special status plant species before treating an area; considering effects to special status 

species when designing herbicide treatment programs; 

• Using drift reduction agents to reduce the risk of drift hazard; and 

• Using a selective herbicide and a wick or backpack sprayer to minimize risks to special plants. 

In addition, the BLM Vegetation EIS lists recommended buffers distances for specific herbicides to minimize 

risk to special status species (BLM 2007f). These are larger buffer distances than the previous 

recommendations from the Vernal BLM and the distances specified in the Integrated Weed Management Plan 

(Appendix J). 

DEIS 4-96 July 2010
In the Biological Assessment associated with the BLM Vegetation EIS, the USFWS requires buffers of up to a 

0.5 mile for some herbicides around threatened and endangered species to have no affect on these species. 

This is a larger distance than either the BLM Vegetation EIS recommended buffer distances or the previous 

recommended buffer distances from the BLM Vernal Field Office. The USFWS buffer distances are for all 

threatened and endangered species, while the herbicide buffers recommended by the BLM Vegetation EIS are 

herbicide-specific. The herbicide buffer distances used by the BLM Vernal Field Office were specific to 

individual species. The BLM and UFWS are in the process of determining which buffer distances would be 

required. 

Special Status Plant Species 

Implementation of the Proposed Action Alternative would result in approximately 12,658 acres of surface 

disturbance and would increase the potential for direct and indirect impacts to special status plant species. 

Under the Proposed Action Alternative, potential impacts to special status plant species would be similar to 

those listed for the No Action Alternative. Impacts would be reduced by the implementation of the ACEPMs 

(Appendix A) and the Integrated Weed Management Plan (Appendix J). 

Graham’s Beardtongue 

Graham’s beardtongue occupies 121 acres of potential habitat in the GNBPA. The habitat is located in an area 

of steep slopes and inaccessible cliffs. Direct impacts to this species could include the loss of individuals, 

populations, and habitat as a result of surface disturbance activities associated with the Proposed Action 

Alternative. However, based on the habitat that this species exploits, and the extremely limited distribution 

within the GNBPA, there would be minimal potential for development activities to occur within potential habitat 

of Graham’s beardtongue. Therefore, there would be minimal to no direct impacts to this species. 

Indirect impacts to Graham’s beardtongue include the spread of noxious and invasive weed species, 

increased erosion, and fugitive dust. Disturbed areas resulting from construction and operation activities can 

lead to the establishment and spread of noxious and invasive weed species. The disturbed areas can act as 

sources of propagules for further spread of noxious and invasive species into undisturbed native vegetative 

communities and special status species habitat. Noxious and invasive weed species compete with native 

plants, can degrade and modify native communities, and reduce resources for native and special status 

species (e.g., moisture, soil nutrients, and light). 

The Integrated Weed Management Plan (Appendix J) would be implemented to minimize indirect impacts to 

the Graham’s beardtongue. The spread and establishment of noxious and invasive weed species in disturbed 

areas would be limited through various control measures including education, cultural, physical, biological, and 

chemical controls. This would minimize the spread of noxious and invasive weed species into undisturbed 

areas and special status species habitat, limiting their effect on the Graham’s beardtongue. 

Surface disturbances also can lead to increased erosion and stormwater runoff that could impact potential 

habitat for the Graham’s beardtongue. Implementation of the ACEPMs would limit erosion and stormwater 

runoff from disturbed areas. Construction activities, increased access roads, and increased vehicular traffic 

near potential habitats would lead to increases in fugitive dust and particulates. Dust accumulation may 

adversely impact photosynthesis, respiration, transpiration, water use efficiency, leaf conductance, growth 

rate, gas exchange, and growth vigor (USFWS 2008b). Dust accumulation has been documented to be higher 

near roads, with fugitive dust depositing up to 300 meters (984 feet) from the source (USFWS 2008b). The 

implementation of appropriate dust abatement measures such as watering the roadway, limiting speeds, and 

chemical stabilization would minimize the effects of fugitive dust (Appendix A). 

For the Proposed Action Alternative, direct impacts would be minimal due to the extremely limited distribution 

of this species and the habitat it prefers. Indirect impacts would be reduced through implementation of the 

ACEPMs (Appendix A) and the Integrated Weed Management Plan (Appendix J). 

DEIS 4-97 July 2010
Clay Reed-mustard 

As described in Section 3.11.3, Special Status Plant Species, approximately 322 acres of suitable habitat for 

the clay reed-mustard is located in the GNBPA. The habitat for this species is located in an area with steep 

cliffs that are difficult to access and serve as a constraint factor to vertical drilling (Chapter 2.0). As such, the 

habitat is an unlikely area for development activities. Direct impacts to this species could include the loss of 

individuals, populations, and habitat as a result of surface disturbance activities associated with the Proposed 

Action Alternative. However, based on the extremely limited distribution of this species within the GNBPA, the 

habitat that it exploits, the difficult access, and the environmental constraints, there would be minimal potential 

for development activities to occur within suitable habitat for the clay reed-mustard. Therefore, there would be 

minimal to no direct impacts to this species. 

Indirect impacts to clay reed-mustard include the spread of noxious and invasive weed species, increased 

erosion, and fugitive dust. Disturbed areas resulting from construction and operation activities can lead to the 

establishment and spread of noxious and invasive weed species and can act as sources of propagules for 

further spread of noxious and invasive species into undisturbed native vegetative communities and special 

status species habitat. Noxious and invasive weed species compete with native plants and pose a particular 

threat to species with low population numbers and diversity (i.e., special status species). Noxious and invasive 

weed species can degrade and modify native communities and reduce resources for native and special status 

species (e.g., moisture, soil nutrients, and light). The competition from noxious and invasive species can 

reduce special status species population size and lead to potential extirpation for highly threatened species. 

The Integrated Weed Management Plan (Appendix J) would be implemented to minimize indirect impacts to 

the clay reed-mustard. The spread and establishment of noxious and invasive weed species in disturbed areas 

would be limited through various control measures including education, cultural, physical, biological, and 

chemical controls. This would minimize the spread of noxious and invasive weed species into undisturbed 

areas and special status species habitat, limiting their effect on the clay reed-mustard. As identified in the BLM 

Vegetation EIS, chemical weed treatments can have impacts on threatened and endangered species through 

direct spray, herbicide drift, surface runoff from upslope treatment sites, accidental spills, and harming of 

species pollinators (BLM 2007f). The implementation of the BLM Vegetation EIS standard operating 

procedures for herbicide spraying would minimize impacts from herbicide spraying on the clay reed-mustard. 

These standard operating procedures include: 

• Surveying for special status plant species before treating an area; considering effects to special status 

species when designing herbicide treatment programs; 

• Using drift reduction agents to reduce the risk of drift hazard; and 

• Using a selective herbicide and a wick or backpack sprayer to minimize risks to special plants. 

Surface disturbances also can lead to increased erosion and stormwater runoff that could impact habitat for 

the clay reed-mustard. Implementation of the ACEPMs would limit erosion and stormwater runoff from 

disturbed areas. Construction activities, increased access roads, and increased vehicular traffic near clay 

reed-mustard habitats would lead to increases in fugitive dust and particulates. Dust accumulation may 

adversely impact photosynthesis, respiration, transpiration, water use efficiency, leaf conductance, growth 

rate, gas exchange, and growth vigor (USFWS 2008b). Dust accumulation has been documented to be higher 

near roads, with fugitive dust depositing up to 300 meters (984 feet) from the source (USFWS 2008b). The 

implementation of appropriate dust abatement measures such as watering the roadway, limiting speeds, and 

chemical stabilization would minimize the effects of fugitive dust (Appendix A). 

For the Proposed Action Alternative, direct impacts would be minimal due to the extremely limited distribution 

of this species and the habitat it prefers, and the minimal potential for development to occur within suitable 

habitat. Indirect impacts would be reduced through implementation of the ACEPMs (Appendix A) and the 

Integrated Weed Management Plan (Appendix J). 

DEIS 4-98 July 2010
Uinta Basin hookless cactus 

As discussed in Section 3.11.3, Special Status Species, potential habitat for the Uinta Basin hookless cactus in 

the GNBPA would be approximately 54,618 acres. The Uinta Basin hookless cactus is distributed throughout 

the GNBPA and many of the populations are quite large. Based on the distribution and large number of 

individuals, a qualitative assessment of the amount of Uinta Basin hookless cactus habitat that would be 

impacted by the Proposed Action Alternative is estimated by multiplying the percentage of the GNBPA that 

would be impacted by new surface disturbance associated with the Proposed Action Alternative by the 

acreage of Uinta Basin hookless cactus habitat in the GNBPA. Approximately 8 percent of the GNBPA would 

be disturbed under the Proposed Action Alternative, resulting in an estimated loss of approximately 

4,369 acres of potential cactus habitat. 

Direct impacts to Uinta Basin hookless cactus could result from construction and operations activities including 

potential trampling from off-road vehicles, construction equipment, and livestock; construction and 

maintenance activities resulting in the temporary or permanent removal of aboveground cover; and the 

temporary or permanent loss of occupied habitat or individuals. 

Indirect impacts could result from the increase in the number of access roads, vehicular traffic, and surface 

disturbance from the construction of well pads and associated facilities. These activities could lead to potential 

increases in illegal collection of the Uinta Basin hookless cactus, habitat fragmentation, the introduction and 

spread of invasive species, the loss of pollinators, fugitive dust impacts, and increased sedimentation. Illegal 

collection of the Uinta Basin hookless cactus historically has been one of the primary threats to the 

conservation and recovery of this species (BLM 2008d). The increase in the number of access roads within 

and near occupied habitats would allow greater access to rare plant populations. This potentially could 

increase illegal collection of the species. Habitat fragmentation could occur as a result of the increased number 

of access roads, pipeline and other utility ROWs, and long-term surface disturbance from well pads and 

associated facilities. The anthropogenic fragmentation of plant habitats can result in more isolated, smaller 

populations (USFWS 2008b) and decreased species density (Mustajarvi et al. 2001). Decreased species 

density in populations has the potential to adversely impact pollination and reproductive success of the Uinta 

Basin hookless cactus (Mustajarvi et al. 2001; USFWS 2008b). 

Other impacts from road construction and ground disturbance may include the potential for the introduction 

and/or spread of noxious and invasive plant species. Seeds from invasive species are often carried by vehicles 

and spread via vehicle-caused air turbulence (Forman and Alexander 1998; USFWS 2008b). Within the 

GNBPA, noxious and invasive weed species are often present in the seedbank, and once an area is disturbed, 

these species can quickly establish. The disturbed areas can act as sources of propagules for further spread 

of noxious and invasive species to spread into undisturbed native vegetative communities and special status 

species habitat. Noxious and invasive weed species compete with native plants, and are a particular threat to 

species with low population numbers and diversity (i.e., special status species). Noxious and invasive weed 

species can degrade and modify native communities, and reduce resources for native and special status 

species (e.g., moisture, soil nutrients, and light). In addition, the competition from noxious and invasive species 

can reduce special status species population size. The spread of noxious and invasive plant species could 

lead to changes in species composition within the native vegetative communities. Changes in species 

composition potentially would lead to greater grazing pressure from sheep and/or cattle on grasses and shrubs 

that act as “nurse” plants for immature cacti. Nurse plants create an environment that is more favorable for 

successful establishment of immature cacti by providing shade, moisture, and protection from trampling. In 

addition, noxious and invasive weed species could outcompete the immature cacti as the invading species 

modify the habitat and species composition, and use resources required by the immature cacti. Habitat 

fragmentation and the introduction and spread of noxious and invasive weed species could impact the plant 

pollinators, which would negatively impact the reproductive success of the Uintah Basin hookless cactus. 

The Integrated Weed Management Plan (Appendix J) would be implemented to minimize impacts from 

noxious and invasive weed species to the Uinta Basin hookless cactus. The spread and establishment of 

noxious and invasive weed species in disturbed areas would be limited through various control measures such 

DEIS 4-99 July 2010
as education and controls on cultural, physical, biological, and chemical controls. This would minimize the 

spread of noxious and invasive weed species into undisturbed areas and special status species habitat, 

limiting their effect on the Uinta Basin hookless cactus. As identified in the BLM Vegetation EIS, chemical 

weed treatments can impact threatened and endangered species through direct spray, herbicide drift, surface 

runoff from upslope treatment sites, accidental spills, and harming of species pollinators (BLM 2007f). The 

implementation of the BLM Vegetation EIS standard operating procedures for herbicide spraying would 

minimize impacts from herbicide spraying on the Uinta Basin hookless cactus. The standard operating 

procedures include: 

• Surveying for special status plant species before treating an area; considering effects to special status 

species when designing herbicide treatment programs; 

• Using drift reduction agents to reduce the risk of drift hazard; and 

• Using a selective herbicide and a wick or backpack sprayer to minimize risks to special plants. 

Surface disturbances also can lead to increased erosion and stormwater runoff that could impact the Uinta 

Basin hookless cactus. Implementation of the ACEPMs would limit erosion and stormwater runoff from 

disturbed areas. Construction activities, increased access roads, and increased vehicular traffic within and 

near occupied habitats would lead to increases in fugitive dust and particulates. Dust accumulation may 

adversely impact photosynthesis, respiration, transpiration, water use efficiency, leaf conductance, growth 

rate, gas exchange, and growth vigor (USFWS 2008b). Dust accumulation has been documented to be higher 

near roads, with fugitive dust depositing up to 300 meters (984 feet) from the source (USFWS 2008b). The 

implementation of appropriate dust abatement measures such as watering the roadway, limiting speeds, and 

chemical stabilization would minimize the effects from fugitive dust (Appendix A). 

4.11.2.2 Mitigation and Mitigation Effectiveness 

The following additional mitigation measures would reduce impacts associated with vegetation resources for 

the proposed project. 

VEG-1 No roads, well pads, construction/production facilities, or linear facilities that would result in new 

surface disturbance would be placed within active floodplains or the 100-year floodplain of Bitter 

Creek or the White River, or within 100 meters of riparian areas or in riparian habitat on 

BLM-managed lands. An exemption would be allowed for surface disturbance from these activities 

in the areas if: 1) there were no practical alternatives; or 2) the impacts could be fully mitigated. 

VEG-2 Plateau herbicide would be used for the control of cheatgrass (Bromus tectorum) in the GNBPA. 

VEG-3 A 1- or 2-year rest period or mechanical control would be required prior to reseeding on areas 

treated with herbicide spraying. 

SSS-1 The BLM and USFWS Clay Reed-mustard and Uinta Basin Hookless Cactus Conservation 

Measures (Appendix L) and Graham’s Beardtongue Conservation Agreement Recommended 

Measures (Appendix M) would be implemented for surface disturbing activities. In addition, surface 

disturbance would not occur within 300 feet of Uinta Basin hookless cactus. 

Implementation of mitigation measure VEG-1 and the ACEPMs (Appendix A), would result in no impacts to 

riparian and wetland areas by avoiding surface disturbances in these areas. VEG-1 is consistent with the BLM 

riparian policy for new surface disturbances as described in the Vernal RMP (BLM 2008b). 

The use of Plateau has been recently approved by the BLM for the treatment of cheatgrass. It is a broadspectrum herbicide that, when used selectively, controls the spread and establishment of cheatgrass and 

allows native grasses and forbs to re-establish in disturbed areas (NRCS 2008b; Menalled 2006). Adherence 

to mitigation measure VEG-2, in combination with the implementation of the Reclamation Plan (Appendix E) 

DEIS 4-100 July 2010
and the Integrated Weed Management Plan (Appendix J), would assist in controlling and preventing the 

establishment and spread of cheatgrass. The implementation of the BLM Vegetation EIS standard operating 

procedures and appropriate herbicide buffers would minimize unintended impacts to special status species 

from herbicide treatments. Implementation of VEG-3 would allow the herbicide residue to dissipate from the 

soil before reseeding. Treating the area with mechanical control would result in more successful seeding 

establishment. 

Implementation of mitigation measure SSS-1 would minimize or avoid direct impacts to clay reed-mustard and 

Uinta Basin hookless cactus through the implementation of the BLM and USFWS conservation measures 

(Appendix L) and to Graham’s beardtongue through the Graham’s beardtongue conservation agreement 

recommended measures (Appendix M). The conservation measures for the clay reed-mustard and Uinta 

Basin hookless cactus were designed by the USFWS and BLM to minimize effects from oil and gas 

development. Included as part of these measures are pre-construction surveys to identify the presence of 

suitable habitat. Those areas identified as being suitable to support special status plants would be surveyed, 

following accepted survey protocols, to determine the presence of special status plant species. Other 

measures include minimizing impacts in suitable habitat and adhering to minimum buffers between the edge of 

the surface disturbance and identified plants and populations. In the USFWS Uinta Basin Hookless Cactus 

Conservation Measures, a 100-foot buffer is specified, but in the BLM Vernal RMP, a 300-foot buffer is 

required between special status species and surface disturbances. The 300-foot buffer will be implemented for 

all special status species in the GNBPA. 

Indirect impacts to Graham’s beardtongue would be minimized through the implementation of the Graham’s 

Beardtongue Conservation Agreement Recommended Measures (Appendix M). Indirect impacts that would 

occur under the Proposed Action Alternative are anticipated to be minor. 

Indirect impacts to clay reed-mustard would be minimized through the implementation of the BLM and USFWS 

Clay Reed-mustard Conservation Measures in Appendix L. Indirect impacts to this species would increase 

with the Proposed Action Alternative, but are anticipated to be minor. Therefore, the Proposed Action 

Alternative may affect, but is not likely to adversely affect clay reed-mustard. 

Indirect impacts on Uinta Basin hookless cactus from the Proposed Action Alternative would be substantial 

due to the presence of large populations of this species within the GNBPA, and distribution throughout. 

Therefore, the Proposed Action Alternative may affect, and is likely to adversely affect Uinta Basin hookless 

cactus due to potential for habitat fragmentation, fugitive dust effects, and changes in vegetative community 

characteristics from construction and operation activities. 

4.11.2.3 Residual Impacts 

Vegetation recovery to similar cover and species composition after implementation of a reclamation program is 

expected to occur over the long term (10 to 100 years). It is estimated that herbaceous-dominated plant 

communities would require a minimum of 10 year to establish adequate ground cover to prevent erosion and 

provide forage for wildlife species and grazing operations. Woody-dominated plant communities would require 

at least 25 to 50 years for shrubs of similar stature to recolonize the area. Re-establishment of mature 

pinyon-juniper woodlands would require at least 75 to 100 years. Fragmentation and the conversion of 

vegetation communities may occur over the long term, depending on the success of reclamation and 

associated disturbance from maintenance activities over the life of the project. 

Implementation of the ACEPMs (Appendix A), the Reclamation Plan (Appendix E), the Integrated Weed 

Management Plan (Appendix J), and the additional mitigation measures would minimize residual impacts 

from noxious weeds and invasive species as well as impacts on special status plant species populations and 

suitable habitat. Residual impacts due to the loss of sagebrush habitat are discussed in Section 4.15, Wildlife 

and Fisheries Resources. Long-term loss of Uinta Basin hookless cactus individuals and suitable habitat from 

construction and operation activities would result in habitat fragmentation, fugitive dust, loss of nurse plants, 

erosion and sedimentation, and conversion of vegetation communities.

DEIS 4-101 July 2010
4.11.3 Resource Protection Alternative 

The Resource Protection Alternative would be similar to the Proposed Action Alternative except that it 

minimizes surface impact by limiting the maximum number of new well pad locations to 1 pad per 40 acres 

(maximum of 16 well pads per section). This would be accomplished through the use of directional drilling, 

which would allow multiple well bores from a single pad. 

4.11.3.1 Impacts on Vegetation 

Under the Resource Protection Alternative, direct and/or indirect impacts to vegetation related to new surface 

disturbance would be approximately 8,147 acres; 4,511 acres less than the Proposed Action. Table 4.11-3

provides the estimated acres of impact for each vegetation type under this alternative. The Resource 

Protection Alternative would impact 2,961 acres of sagebrush habitat. For a discussion of impacts associated 

with the loss of sagebrush habitat, refer to Section 4.15, Wildlife and Fisheries Resources. Recovery 

timeframes and ACEPMs would be the same as described for the Proposed Action Alternative. 

Table 4.11-3 Acreages of Affected Vegetation Under the Resource Protection Alternative 

Vegetation Cover Types 1 Acres Percent of GNBPA 

Salt-desert shrubland 3,437 2% 

Sagebrush shrubland 2,961 2% 

Grassland 811 <1%

Cliff/Canyon 386 <1%

Riparian 29 <1%

Pinyon-juniper woodland 147 <1% 

Agriculture 53 <1%

Barren 319 <1%

Developed 4 <1%

Total 8,147 5% 

1

 This quantitative assessment is calculated by taking the percent of the GNBPA impacted by new surface disturbance associated with the Resource 

Protection Alternative (5 percent) multiplied by the acreage for each vegetation type within the GNBPA. 

Noxious Weeds and Invasive Species

Under the Resource Protection Alternative, direct and/or indirect surface disturbance-related impacts to 

noxious weeds and invasive species would be approximately 8,147 acres. Anticipated impacts, recovery 

timeframes, and ACEPMs would be the same as described for the Proposed Action Alternative. 

Special Status Plant Species

Direct and indirect impacts to special status plant species under the Resource Protection Alternative would be 

the same as those presented for the Proposed Action Alternative. Approximately 8,147 acres of surface 

disturbance would occur as a result of this alternative. Using the quantitative calculation described under the 

Proposed Action Alternative, approximately 2,731 acres of potential Uinta Basin hookless cactus habitat would 

be impacted under the Resource Protection Alternative. The potential for impacts to occur would be reduced 

proportionately due to the reduction in surface disturbance compared to the Proposed Action Alternative. 

4.11.3.2 Mitigation and Mitigation Effectiveness 

Mitigation measures and effectiveness under the Resource Protection Alternative would be the same as 

presented under the Proposed Action Alternative and would reduce impacts to vegetation resources. While 

impacts to special status species would be reduced under this alternative, the determination of the effect on 

the special status species would be the same as under the Proposed Action. 

DEIS 4-102 July 2010
4.11.3.3 Residual Impacts 

Residual impacts to vegetation resources including general vegetation, noxious weeds and invasive species, 

and special status plant species would be the same for the Resource Protection Alternative as described 

under the Proposed Action Alternative. 

4.11.4 Optimal Recovery Alternative 

Under the Optimal Recovery Alternative, 13,446 new well bores would be drilled at a rate of 672 wells per year 

over a 20-year timeframe. This alternative is designed to maximize recovery of the gas resource by increasing 

the number of wellbores to achieve 10-acre surface and downhole spacing throughout the GNBPA. 

4.11.4.1 Impacts on Vegetation 

Under the Optimal Recovery Alternative, direct and/or indirect surface disturbance-related impacts to 

vegetation resources would be approximately 42,620 acres; 29,962 acres more than under the Proposed 

Action (Table 4.11-4). The Optimal Recovery Alternative would impact 15,313 acres of sagebrush habitat. For 

a discussion of impacts associated with the loss of sagebrush habitat, refer to Section 4.15, Wildlife and 

Fisheries Resources. Recovery timeframes and ACEPMs would be the same as described for the Proposed 

Action Alternative. 

Table 4.11-4 Acreages of Affected Vegetation Under the Optimal Recovery Alternative 

Vegetation Cover Types Acres1 Percent of GNBPA 

Salt-desert shrubland 17,775 11% 

Sagebrush shrubland 15,313 9% 

Grassland 4,194 3% 

Cliff/Canyon 1,997 1% 

Riparian 637 <1%

Pinyon-juniper woodland 758 <1% 

Agriculture 274 <1% 

Barren 1,650 1%

Developed 22 <1%

Total 42,620 26% 

1

 This quantitative assessment is calculated by taking the percent of the GNBPA impacted by new surface disturbance associated with the 

Optimal Recovery Alternative (26 percent) multiplied by the acreage for each vegetation type within the GNBPA. 

Noxious Weeds and Invasive Species

Under the Optimal Recovery Alternative, direct and/or indirect surface disturbance-related impacts to noxious 

weeds and invasive species would be approximately 42,620 acres. Anticipated impacts would remain 

consistent with the Proposed Action; however, as surface disturbance acreage increases, the potential for the 

introduction and/or spread of noxious weeds and invasive species increases. In addition, with increased 

surface disturbance, successful reclamation would be even more challenging. Recovery timeframes and 

ACEPMs would be the same as described for the Proposed Action Alternative. 

Special Status Plant Species

Direct and indirect impacts to all special status plant species under the Optimal Recovery Alternative would be 

the same in nature as for the Proposed Action. However, due to approximately 42,260 acres of surface 

disturbance, direct and indirect impacts may be substantially greater as a result of the Optimal Recovery 

Alternative. Using the quantitative calculation described under the Proposed Action Alternative, approximately 

DEIS 4-103 July 2010
14,201 acres of potential Uinta Basin hookless cactus habitat would be impacted under the Optimal Recovery 

Alternative. 

4.11.4.2 Mitigation and Mitigation Effectiveness 

Mitigation measures and effectiveness under the Optimal Recover Alternative would be the same as 

presented under the Proposed Action and would reduce impacts associated with vegetation resources. 

However, impacts to special status species may be greater under the Optimal Recovery Alternative. It is 

anticipated that indirect impacts to Graham’s beardtongue and clay-reed mustard would be minor. Therefore, 

the Optimal Recovery Alternative may affect, but is not likely to adversely affect clay-reed mustard. This 

alternative may affect and is likely to adversely affect Uinta Basin hookless cactus due to indirect impacts as 

described in the Proposed Action. 

4.11.4.3 Residual Impacts 

For the Optimal Recovery Alternative, residual impacts to vegetation resources, including general vegetation, 

noxious weeds and invasive species, and special status plant species, would be the same as described under 

the Proposed Action Alternative. 

4.11.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Due to very slow revegetation rates and low revegetation success, the proposed project would result in 

impacts to vegetation communities that would extend beyond construction, operation, and maintenance 

activities, affecting long-term ecological and anthropogenic uses of vegetation areas. 

For all alternatives, long-term impacts that may affect long-term productivity include the disturbance of 

herbaceous and shrub-dominated vegetation cover types that would require 10 to 50 years to recover, the 

disturbance of pinyon-juniper woodlands that would require at least 75 to 100 years to recover, and the 

potential that populations of weedy annual species (e.g., halogeton, cheatgrass) may become established in 

localized areas for extended periods of time. Under the Proposed Action, the disturbance of approximately 

12,426 acres of herbaceous and shrub-dominated vegetation cover types and the disturbance of pinyonjuniper woodland on approximately 225 acres would occur. Under the Resource Protection Alternative, the 

disturbance of approximately 7,996 acres of herbaceous and shrub-dominated vegetation cover types and the 

disturbance of pinyon-juniper woodland on approximately 147 acres would occur. Under the Optimal Recovery 

Alternative, the disturbance of approximately 41,840 acres of herbaceous and shrub-dominated vegetation 

cover types and the disturbance of pinyon-juniper woodland on approximately 758 acres would occur. The 

decrease in vegetation cover types either through direct impacts (i.e., removal of vegetation) or indirect 

impacts (i.e., the spread of noxious and invasive species) could impact ecological function, livestock and 

wildlife grazing, and recreation activities in the GNBPA. 

4.11.6 Irreversible/Irretrievable Commitment of Resources 

If interim reclamation is successful, no irretrievable commitments are anticipated for native vegetation 

communities. If interim reclamation is not successful, there would be an irretrievable loss of native vegetation 

communities due to construction and production activities. Assuming successful reclamation at project 

completion, these impacts would be reversible. If final reclamation is successful, no irreversible commitments 

would be anticipated. 

If successful reclamation is not achieved, disturbed areas would no longer support native vegetation 

communities and potentially would be dominated by noxious and invasive weed species, especially halogeton 

and cheatgrass species. This would represent an irreversible and irretrievable commitment of this resource. 

DEIS 4-104 July 2010
This incremental loss of Uinta Basin hookless cactus habitat during construction and operation activities would 

be a total of 4,269 acres for the Proposed Action Alternative; 2,731 acres for the Resource Protection 

Alternative; and 14,201 acres for the Optimal Recovery Alternative. This would represent an irretrievable 

commitment of this resource. If interim and final reclamation are successful, this habitat may be reclaimed at 

the completion of the project. 

DEIS 4-105 July 2010
4.12 Visual Resources 

Potential visual impacts associated with the proposed project were analyzed using the procedures outlined in 

the BLM Visual Contrast Rating Handbook H-8431-1 (BLM 1986). The BLM VRM system only applies to 

federal lands, not to state, Tribal, or private lands. Therefore, visual resource impacts discussed in this section 

occur on federal lands within the GNBPA, and do not include state, Tribal, or private lands that have no 

designated visual classification. Visual impacts were determined by comparing the proposed project and 

alternatives with the VRM class objectives for the GNBPA, which is designated VRM Class II, Class III, and 

Class IV. The process involves comparing the degree of visual contrast from the proposed facilities and 

activities with the existing landscape character. 

Significances of visual impacts are judged as follows: 

• Significant – Predicted visual contrast that exceeds the VRM class guidelines. 

• Moderate – Predicted visual contrast levels that are fully at the level of change allowed, but that do not 

exceed the VRM guidelines. 

• Low – Predicted visual contrast levels that are clearly below the VRM class allowable thresholds for 

visual change. 

4.12.1 No Action Alternative 

4.12.1.1 Impacts on Visual Resources 

This alternative involves land areas managed for VRM Class III and Class IV objectives. No development is 

projected to occur in Class II areas. Short-term visual impacts due to construction, drilling, and completion 

activities would occur on 1,102 new well pads (approximately 4,702 acres) on federal, state, Tribal, and private 

lands. It is estimated that 1,287 acres of new disturbance would be seen by boaters on the White River and 

140 acres would be seen from the Goblin City Overlook in the foreground-middleground distance zone 

(Figure 3.12-2). This is in addition to 2,130 acres of existing disturbance seen by boaters on the White River 

and 232 acres of existing disturbance from the Goblin City Overlook. The existing landscape of these lands 

would be changed by the addition of new lines, colors, forms, and textures. New well pads, facilities, roads, 

and pipelines would increase visual contrasts created by gas well construction and production activities. 

Under the No Action Alternative, construction, drilling, and completion would take place over a 6-year period. 

Drilling activity includes lighting of drill rigs during nighttime hours. 

Long-term visual impacts of the No Action Alternative would consist of the introduction of long-term visual 

modifications that create contrasts. Long-term landscape contrasts would result from well pad facilities, 

compressor stations, pipelines, electrical lines, and roads. The No Action Alternative includes existing and 

active oil and gas units that have experienced extensive natural gas development. These short-term and 

long-term landscape modifications would have moderate adverse impacts to visual resources on federal, state, 

Tribal, and private lands. 

4.12.2 Proposed Action Alternative 

4.12.2.1 Impacts on Visual Resources 

Development of the project under the Proposed Action Alternative would expand the scope of the visual 

contrast that currently exists between existing facilities and the natural character of the landscape. Short-term 

visual impacts of construction, drilling, and completion activities from new pads and existing pads where twin 

wells are proposed would be present in landscape. The existing landscape would be altered by the addition of 

new lines, colors, forms, and textures. New well pads, facilities, roads, and pipelines would increase visual 

contrasts created by gas well construction and production activities within the project landscape. Drilling 

activities would include lighting of drill rigs during nighttime hours. 

DEIS 4-106 July 2010
Long-term visual impacts would be caused by additional long-term visual contrasts. Long-term landscape 

contrasts would result from well pad facilities, pipelines, and roads. 

Based on the ACEPMs provided in Appendix A and the fact that the GNBPA already includes extensive 

natural gas development, short-term and long-term landscape modifications would have moderate visual 

impacts on the GNBPA. Environmental constraints within the GNBPA (Section 2.6.2.2, Infill Drilling and 

Multiple-Well Pads) and ACEPMs listed in Appendix A that would be specific to visual resources are as 

follows: 

• Well pad construction would be precluded from steep slopes; 

• Well pads would not be located in the viewshed of the White River corridor through the GNBPA, 

defined as the line-of-sight within 0.5 mile from the far bank of the river outside of the Indian Trust 

Lands; 

• Wells pads would not be located within 600 feet of the White River within Indian Trust Lands; 

• KMG would determine the use of topographic features and placement of facilities, such as low-profile 

tanks, to hide facilities from view; and 

• KMG would use telemetry/automation to reduce vehicle trips to these locations. 

Under the Proposed Action Alternative, approximately 3,461 acres of new disturbance would be seen by 

boaters on the White River and 377 acres of disturbance would be seen from the Goblin City Overlook in the 

foreground-middleground distance zone (Figure 3.12-2). 

Approximately 91 acres of disturbance associated with the construction of new well pads, twin wells from 

existing pads, access roads, electric power lines, and pipeline ROWs would occur under the Proposed Action 

within VRM Class II areas on federal lands. The management objective of Class II areas is to retain the 

existing character of the landscape. Management activities within VRM Class II areas may be seen, but should 

not attract the attention of the casual observer. Any changes must repeat the basic elements of form, line, 

color, and texture found in the predominant natural features of the characteristic landscape. Although the 

measures discussed above would partially reduce impacts to visual resources, development under the 

Proposed Action Alternative would attract the attention of the casual observer and, thus, not meet VRM 

Class II objectives. 

Under the Proposed Action Alternative, approximately 861 acres of disturbance associated with the 

construction of new well pads, twin wells from existing pads, access roads, electric power lines, and pipeline 

ROWs would occur within VRM Class III areas on federal lands. The management objective of Class III areas 

is to partially retain the existing character with a moderate level of change to the landscape. Management 

activities with VRM Class III areas may attract attention but should not dominate the view of the casual 

observer. Changes should repeat the basic elements found in the predominant natural features of the 

characteristic landscape. Assuming implementation of the measures discussed above, development under the 

Proposed Action Alternative would meet VRM Class III objectives. 

Within VRM Class IV areas on federal lands, the Proposed Action Alternative would involve development of 

single well pads, twin wells on existing pads, access roads, electric power lines, and pipeline ROWs through 

disturbance of approximately 8,572 acres. Management actions within VRM Class IV may dominate the view 

and be the major focus of viewer attention. However, KMG would determine facility locations and surface 

disturbance requirements on a site-specific basis using topographic features to reduce visual contrast (see 

Visual Resource protection measures in Appendix A). Consequently, development under the Proposed 

Action Alternative would meet VRM Class IV objectives. 

Approximately 3,063 acres of disturbance under the Proposed Action Alternative would occur on Tribal Lands 

for which BLM VRM classifications do not apply. This disturbance would involve the construction of new well 

DEIS 4-107 July 2010
pads, twin wells on existing pads, access roads, electric power lines, and pipeline ROWs. Assuming 

implementation of the measures discussed above, development under the Proposed Action Alternative would 

reduce visual contrast on Tribal Lands. 

4.12.2.2 Mitigation Measures and Mitigation Effectiveness 

The following additional mitigation is recommended: 

VIS-1 Operating equipment on all lands contained within the boundaries of the project would be painted in a 

flat non-reflective color that is compatible with the surrounding landscape as specified by the 

appropriate SMA. Unpainted steel pipe would be used for surface gathering pipelines, which after 

rusting would blend with the existing landscape. 

VIS-2 Permeon would be used to dye landform cuts and fills in VRM Class II areas. 

VIS-3 Production facilities would not be placed in VRM Class II areas. 

These mitigation measures would be effective at minimizing, but not eliminating, visual contrasts associated 

with the project. 

4.12.2.3 Residual Impacts 

Due to the programmatic nature of this EIS, the exact locations of development activities are not known at this 

time. However, during the APD process, residual impacts would be minimized with the utilization of low-profile 

storage tanks, off-site production facilities, and the application of appropriate environmental colors to 

structures. 

The visual effects gradually would diminish over time as natural vegetation patterns would develop to help 

mask the landform and color contrasts. However, increased surface disturbance and the long-term presence 

of surface production facilities, roads, and pipelines in the GNBPA would result in residual impacts to visual 

resources that cannot be completely mitigated. 

4.12.3 Resource Protection Alternative 

4.12.3.1 Impacts on Visual Resources 

Visual impact types for the Resource Protection Alternative would be the same as for the Proposed Action 

Alternative. Under the Resource Protection Alternative, approximately 2,218 acres of new disturbance would 

be seen by boaters on the White River and 242 acres of disturbance would be seen from the Goblin City 

Overlook in the foreground-middleground distance zone (Figure 3.12-2). 

Approximately 58 acres of disturbance would occur under the Resource Protection Alternative within VRM 

Class II areas on federal lands. The management objective of Class II areas is to retain the existing character 

of the landscape. Management activities with VRM Class II areas may be seen, but should not attract the 

attention of the casual observer. Any changes must repeat the basic elements of form, line, color, and texture 

found in the predominant natural features of the characteristic landscape. Although the measures discussed 

above would partially reduce impacts to visual resources, development under the Resource Protection 

Alternative would attract the attention of the casual observer and, thus, not meet VRM Class II objectives. 

Under the Resource Protection Alternative, approximately 554 acres of disturbance would occur within VRM 

Class III areas. The management objective of Class III areas is to partially retain the existing character with a 

moderate level of change to the landscape. Management activities with VRM Class III areas may attract 

attention but should not dominate the view of the casual observer. Changes should repeat the basic elements 

found in the predominant natural features of the characteristic landscape. Assuming implementation of the 

DEIS 4-108 July 2010
measures discussed above for the Proposed Action Alternative, development under the Resource Protection 

Alternative would be in conformance with VRM Class III objectives. 

Within VRM Class IV areas on federal lands, the Resource Protection Alternative would involve approximately 

5,563 acres of development similar to the Proposed Action Alternative. Management actions within VRM 

Class IV may dominate the view and be the major focus of viewer attention. However, KMG would determine 

facility locations and surface disturbance requirements on a site-specific basis using topographic features to 

reduce visual contrasts (see Visual Resource protection measures in Appendix A). Consequently, the 

Resource Protection Alternative would meet VRM Class IV objectives. 

Approximately 1,972 acres of disturbance under the Resource Protection Alternative would occur on Tribal 

Lands for which BLM VRM classifications do not apply. This disturbance would involve the construction of new 

well pads, twin wells on existing pads, access roads, electric power lines, and pipeline ROWs. Assuming 

implementation of the measures discussed for the Proposed Action Alternative, development under the 

Resource Protection Alternative would reduce visual contrast on Tribal Lands. 

4.12.3.2 Mitigation Measures and Mitigation Effectiveness 

Mitigation measures and mitigation effectiveness are the same as for the Proposed Action Alternative. 

4.12.3.3 Residual Impacts 

Residual impacts would be the same as for the Proposed Action Alternative. 

4.12.4 Optimal Recovery Alternative 

4.12.4.1 Impacts on Visual Resources 

Visual impact types for the Optimal Recovery Alternative would be the same as for the Proposed Action 

Alternative. Under the Optimal Recovery Alternative, approximately 11,536 acres of new disturbance would be 

seen by boaters on the White River and 1,257 acres of disturbance would be seen from the Goblin City 

Overlook in the foreground-middleground distance zone (Figure 3.12-2). 

Approximately 305 acres of disturbance would occur under the Optimal Recovery Alternative within VRM 

Class II areas. The management objective of Class II areas is to retain the existing character of the landscape. 

Management activities with VRM Class II areas may be seen, but should not attract the attention of the casual 

observer. Any changes must repeat the basic elements of form, line, color, and texture found in the 

predominant natural features of the characteristic landscape. Although the measures discussed above would 

partially reduce impacts to visual resources, development under the Optimal Recovery Alternative would 

attract the attention of the casual observer and, thus, not meet VRM Class II objectives. 

Under the Optimal Recovery Alternative, approximately 2,508 acres of disturbance similar to the Proposed 

Action Alternative would occur within VRM Class III areas. The management objective of Class III areas is to 

partially retain the existing character with a moderate level of change to the landscape. Management activities 

with VRM Class III areas may attract attention but should not dominate the view of the casual observer. 

Changes should repeat the basic elements found in the predominant natural features of the characteristic 

landscape. Assuming implementation of the measures discussed under the Proposed Action Alternative, 

development under the Optimal Recovery Alternative would meet VRM Class III objectives. 

Within VRM Class IV areas, the Optimal Recovery Alternative would involve approximately 29,093 acres of 

development similar to the Proposed Action Alternative. Management actions within VRM Class IV may 

dominate the view and be the major focus of viewer attention. However, KMG would determine facility 

locations and surface disturbance requirements on a site-specific basis using topographic features to minimize 

visual contrast (see Visual Resource protection measures in Appendix A). Consequently, the Optimal 

Recovery Alternative would meet VRM Class IV objectives. 

DEIS 4-109 July 2010
Approximately 10,314 acres of disturbance under the Optimal Recovery Alternative would occur on Tribal 

Lands for which BLM VRM classifications do not apply. This disturbance would involve the construction of new 

well pads, twin wells on existing pads, access roads, electric power lines, and pipeline ROWs. Given the 

increased disturbance under this alternative and assuming implementation of the measures discussed for the 

Proposed Action Alternative, development under the Optimal Recovery Alternative would impact visual 

contrast on Tribal Lands. 

4.12.4.2 Mitigation Measures and Mitigation Effectiveness 

Mitigation measures and mitigation effectiveness would be the same as for the Proposed Action Alternative. 

4.12.4.3 Residual Impacts 

Residual impacts would be the same, but proportionally higher, as those for the Proposed Action Alternative. 

4.12.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Short-term visual contrasts as viewed from the White River may occur during the river boating season when 

boaters may be able to see drill rigs, lights, and well pads. During project operations, production facilities, well 

pads, pipelines, and roads would provide visual impacts. These short-term view impacts would be temporary 

until facilities are removed and reclamation of the landscape matures. Long-term impacts would result from 

permanent landform modifications. 

4.12.6 Irreversible/Irretrievable Commitment of Resources 

Development activities that alter the landscape reduce visual quality for a period of time. Visual impacts due to 

construction of production facilities, pipelines, roads, and transmission lines would be irretrievable during the 

operational life of the project, but would be reversible following removal of the facilities and successful 

reclamation. 

DEIS 4-110 July 2010
4.13 Water Resources 

The primary issues for water and associated resources include the potential for adverse effects on water 

quantity and quality, as well as potential encroachments on floodplains, and disturbance of wetlands, riparian 

areas, and Waters of the U.S. Impacts could occur from spills or leaks; from increased sedimentation and 

salinity derived from construction disturbance; from water consumption and temporary withdrawals; from 

drilling and completion activities and hydraulic fracturing; from the handling and disposal of produced water; or 

from vegetation removal and fill placement in floodplains, wetlands, or riparian areas. 

Implementing the ACEPMs (Appendix A) throughout the GNBPA would reduce impacts to water resources 

and associated features such as floodplains, riparian zones, and wetlands. KMG and other interested 

stakeholders have cooperatively developed Reasonable and Prudent Practices for Stabilization (RAPPS) 

(Horizon Environmental Services 2004). This document identifies a number of practices that would control 

erosion and sedimentation associated with stormwater runoff from oil and gas exploration, production 

processing, treatment, and transmission activities. For all alternatives, KMG would implement selected 

practices to control stormwater runoff associated with project development and operations. In addition, KMG 

would develop site-specific stormwater pollution prevention plans for all construction locations that exceed 

5 acres in size. Examples of such facilities would include compressor sites, gas processing facilities, and large 

produced-water evaporation facilities. KMG will employ industry BMPs to control stormwater runoff, including 

appropriate measures to prevent disturbed sediments from reaching the White River drainage during 

precipitation events. Further environmental measures that would prevent or reduce impacts to water resources 

are listed in Appendix A. 

In addition, agency BMPs for oil and gas development are recommended in the Gold Book (USDOI and 

USDA 2007), and are encouraged in Onshore Oil and Gas Order Number 1. BLM surface management 

stipulations for the planning area and associated leases further address surface disturbance with respect to 

water and associated resources based on the BLM RMP applicable at the time the leases were generated. 

These stipulations generally restrict disturbance or occupancy in the GNBPA on BLM-administered lands 

within floodplains, within or near riparian areas and wetlands, public water reserves, and along portions of the 

White and Green rivers. On BLM-administered lands, in accordance with the Utah BLM Riparian Policy, no 

new surface disturbing activities would occur within 100 meters of riparian areas unless it can be shown that: 

a) there are not practical alternatives, b) all long-term impacts can be fully mitigated, or c) the activity will 

benefit and enhance the riparian area. 

Compliance with Gold Book standards for oil and gas development, unless otherwise specified, is a formal 

management decision for soil and water resources within the BLM Vernal planning area (BLM 2008b). In 

addition, the BLM has made a formal management decision to implement intensive management and 

construction measures to reduce sediment and salinity production on important watersheds, and to reduce 

water quality degradation of the Green River, White River, and their tributaries within the Vernal planning area 

(BLM 2008b). During review of APDs, other reasonable measures to minimize impacts could be specified by 

the BLM in accordance with the CFR, Title 43, Subpart 3101.1-2. For example, relocation of proposed facilities 

by up to 200 meters would be deemed consistent with lease rights. 

These management provisions apply where the BLM administers the land surface. The ESA, NEPA, and other 

requirements also apply to split-estate lands, where the surface lands are not federally-owned but the 

underlying oil and gas are federal. 

On Tribal surface lands, and on state- or privately-owned surface lands within the GNBPA, the management of 

streams, floodplains, and riparian areas may differ from BLM management decisions, stipulations, and lease 

terms. The selection and implementation of resource protection measures by the BLM might not extend to 

Tribal, state, or private surfaces within the GNBPA. On Indian Tribal and allotted oil and gas leases, the BIA is 

considered to be the SMA. The BIA, the State of Utah, or private landowners would determine site-specific 

measures for water resources on lands they manage. On state lands, for example, USITLA manages oil and 

DEIS 4-111 July 2010
gas disturbance according to the regulatory program administered by UDOGM (Bonner 2008). UDOGM 

primarily administers water resources environmental measures on oil and gas leases through Utah 

Administrative Code Rule R649-3, “Drilling and Operating Practices,” and an associated environmental 

handbook (Utah Administrative Code 2008b, Hunt 1996). 

For all project alternatives, any existing or additional water resources measures would reflect applicable 

guidelines and programs of the agencies (e.g., BLM, BIA, UDOGM, USEPA) based on surface ownership, 

agency resource management roles, and interagency agreements. Nationwide requirements, such as 

EO 11988 (Floodplain Management), EO 11990 (Protection of Wetlands), and relevant sections of the CWA 

and ESA, would apply throughout the GNBPA. The following impact assessments are based on these 

considerations. 

4.13.1 No Action Alternative 

Under the No Action Alternative, approved development of wells and infrastructure would continue under the 

provisions of BLM resource planning and recent NEPA decisions in parts of the GNBPA. The nature and 

extent of these approved wellfield developments are described in Chapter 2.0 for the No Action Alternative. 

Resource protection would be provided by mitigation under those existing NEPA assessments and lease 

stipulations already in force. In addition, the potential for impacts to water resources would be reduced where 

activities adhere to overall federal and state rules and guidelines, such as the Gold Book (USDOI and 

USDA 2007), the Clean Water Act, and others as described in Chapter 2.0. 

Under the authority and conditions stated in existing NEPA decision documents for the area, operators are 

exercising their valid lease rights to extract natural gas from the subsurface in order to increase its sale and 

delivery. In combination with the aforementioned authorizations, additional state and fee wells (i.e., non-NEPA 

approved actions) result in a total of approximately 1,102 wells remaining to be drilled in the GNBPA. The 

following text outlines requirements within several of the existing NEPA documents for lands administered by 

the BLM within the GNBPA to minimize and mitigate for direct and indirect impacts to water resources. 

• No new development would occur in the White River floodplain, or in associated wetland or riparian 

zones within the White River Corridor. 

• No refueling or lubricating would take place within 100 feet of wetlands and other waterbodies or 

drainages. 

• Hazardous materials, chemicals, fuels, etc., would not be stored within 100 feet of wetlands or surface 

waters. 

• The operator would adhere to the current Gold Book guidance including site-specific designs 

minimizing/eliminating possible leakages or spills into the drainage systems and requiring the use of 

containment structures, as appropriate. 

• No drilling would take place from new or existing well pads within the 100-year floodplain of the White 

River Corridor. 

• No new roads would be built in the White River corridor. 

• Surface-disturbing activities within the 100-year floodplains of Coyote Wash and Red Wash would be 

considered on a site-specific basis. 

These provisions were developed in NEPA actions for federally-administered lands within other gas field 

project areas that overlap the GNBPA. Their application to Indian Trust Lands or to state and private lands 

within the GNBPA may not be required. However, additional regulations, such as the CWA and EO 11988, 

apply to all water and associated resources within the GNBPA regardless of surface ownership. 

DEIS 4-112 July 2010
4.13.1.1 Impacts to Surface Water 

Watershed Areas

Under the No Action Alternative, new disturbance in the GNBPA would occupy approximately 4,702 acres, and 

total disturbance (existing plus No Action) would occupy 12,468 acres. Further details regarding surface 

disturbance associated with the No Action Alternative are presented in Chapter 2.0. 

Based on existing disturbance, and assuming that these new disturbed areas would be spaced consistently 

across the major watersheds within the GNBPA, portions of these watersheds would be affected as 

approximated in Table 4.13-1. 

Table 4.13-1 New and Existing Surface Disturbance in Major Watersheds, No Action Alternative 

Area Estimated Percent of Estimated Percent of 

Overall within New Overall Area Total Overall Area 

Area GNBPA Disturbance New Disturbance Total 

Stream or River Drainage (acres) (acres) (acres) Disturbance (acres) Disturbance 

Agency Draw-Willow Creek 98,560 16,512 477 0.48 996 1.01 

Bitter Creek 254,720 10,880 314 0.12 740 0.29 

Cottonwood Wash 45,440 39,744 1,148 2.53 3,873 8.52 

Coyote Wash 145,920 19,520 564 0.39 1,208 0.83 

Sand Wash 45,440 21,568 623 1.37 3,346 7.36 

White River1 3,276,800 51,328 1,482 0.05 2,089 0.06 

1

 Excludes named tributary areas already listed in the table. 

As shown in Table 4.13-1, surface disturbance-related activities under the No Action Alternative would affect a 

relatively small incremental total within these watersheds. Additional watersheds have comparatively small 

areas within the GNBPA. These include Lower Pariette Draw (approximately 2,432 acres) and Pelican Lake – 

Green River (approximately 832 acres). These two drainages have overall areas of approximately 

131,200 acres and 83,840 acres, respectively. Under the No Action Alternative, a total of 0.05 percent or less 

of either watershed would be disturbed. Watershed effects described above would contribute to the existing 

disturbances already occurring in these watersheds. The overall extent of existing disturbance in the GNBPA 

was approved in previous NEPA documents. Additional project disturbance generally would occur in 

downstream locations within the watersheds, nearer the mouths of all of the drainages except Willow Creek. 

As a result, those surface water impacts that do occur are likely to have greater effects on downstream 

resources than they would if project activities and protective measures were further upstream in the 

watersheds. 

Surface Water Uses and Flows 

Impacts to surface water quantity could result from uses of surface water and hydraulically connected 

groundwater for project construction and operation. Most water uses would be for well drilling and completion. 

To the extent possible, fresh water withdrawals would be minimized by use of recycled water for new well 

completions. Additional volumes would be consumed for construction dust control and for domestic supplies at 

mancamps and compressor stations. 

As described in Section 2.5.3.4, fresh water for well drilling and completion purposes generally would be 

obtained from commercial suppliers. Water supplies would be obtained mainly from groundwater wells, and 

possibly by small surface water withdrawals from the Green River. These supplies would be provided by 

commercial sources that retain existing or temporary rights in the area, as described in Chapter 2.0. Most of 

the wells that would be used for water supplies are located on the Green River floodplain near Ouray (Utah 

DEIS 4-113 July 2010
Division of Water Rights 2009). Surface water sources are not likely to be needed for the No Action 

Alternative, but some available commercial sources have historically made withdrawals from the Green River. 

Based on water use estimates for well drilling and completion, plus other demands for dust control, 

mancamps, and compressor stations, approximately 525 to 550 acre-feet of water would be required per year 

under the No Action Alternative over approximately 5 years. If half of this originated from recycled water, 

approximately 270 acre-feet per year of new withdrawals would be required. If water recycling is employed as 

planned, and approximately 225 acre-feet per year would be primarily obtained from groundwater as described 

in Chapter 2.0, then approximately 45 acre-feet per year may be needed from surface water withdrawals for 

the No Action Alternative. Under those circumstances, withdrawals likely would be made from the Green River 

at the Deseret Generation point-of-diversion (approximately 3 miles south of Jensen, Utah), or at another 

point-of-diversion temporarily approved by the Utah Division of Water Rights. Under the existing Deseret 

Generation water right 49-225, up to 15 cubic feet per second could be withdrawn from the river (Utah Division 

of Water Rights 2009). This represents less than 2 percent of the smallest daily flow recorded by the USGS at 

the Jensen gage in the last 20 years (806 cubic feet per second, or approximately 1,600 acre-feet per day). 

Based on this, no impacts from surface water withdrawals are anticipated from the No Action Alternative. 

In accordance with the Vernal RMP (BLM 2008b), public water reserves would be protected during agency 

reviews and inspections of proposed site-specific well pad and access road locations. Therefore, impacts to 

Public Water Reserves (PWRs) would be avoided. Two BLM PWRs are located in the extreme southwestern 

GNBPA. These are in Section 35, Township 10 South, Range 20 East, and in Section 7, T11S, R21E. A third 

is located just south of the GNBPA, along upper Cottonwood Wash in Section 21, T11S, R21E. As described 

in Section 2.3, site-specific construction and drilling notification are required. The water sources at these 

locations may be comprised of surface water, groundwater wells, or springs. Site-specific permit reviews would 

require avoidance or mitigation of the resources involved. 

Streamflows also could be adversely affected by groundwater pumping in cases where supply wells were 

hydraulically connected to streams through near-surface aquifer zones. These conditions are most likely to 

occur along the riparian corridors of perennial and intermittent stream reaches. In such cases, groundwater 

drawdown caused by pumping wells would reduce baseflows in nearby stream reaches. Resulting impacts 

generally would be the same as those described above for surface water withdrawals. 

Surface Water Quality

Impacts to surface water quality would result from increased runoff and accelerated erosion, and from leaks or 

ruptures of produced water pipelines if they occur. These factors would result from construction of well pads, 

access roads, cross-country pipelines, and compressor stations. Adherence to BMPs during the drilling 

program and subsequent operations would minimize water quality impacts from runoff and erosion sources. 

Implementation of Gold Book guidelines would reduce accelerated erosion and sedimentation where roads 

and pipelines cross streams and at other project components. Plan provisions also address road drainage and 

maintenance. These provisions would help minimize water quality impacts from accelerated erosion, but 

impacts would still occur. Based on site visits and descriptions, well pads would be flat-surfaced and have 

outer cut-and-fill slopes. Vehicle traffic and rain splash would accelerate erosion on flat pad surfaces, and 

accelerated sheet and rill erosion would occur on cut-and-fill slopes. Similar processes would occur on access 

roads. As a result, there would be some increases in runoff and accelerated erosion. 

Stabilization of road crossings and drainage features, along with revegetation and stabilization of cuts-and-fills, 

would help control water quality impacts from accelerated erosion. However, revegetation efforts in the 

GNBPA are expected to have only limited success. Most well pads would be separated from stream channels 

by intervening undisturbed land surfaces. These would somewhat buffer channel systems from sediment 

delivery. However, the access roads would hydrologically connect eroding surfaces to streams, and would act 

as sediment sources themselves. As a result, some increases in flow turbidity, sediment loads, and salinity 

would occur in surface waters from additional disturbance. These adverse effects are likely to occur in the 

White River and its major tributaries within the GNBPA, and may extend downstream into the Green River. 

DEIS 4-114 July 2010
The magnitudes of these impacts would depend on the implementation, success, and maintenance of control 

measures. 

As described in Section 3.13, these effects already are issues of concern in the GNBPA. Natural causes and 

activities well outside the GNBPA are contributors to these existing conditions. Coyote Wash, Bitter Creek, and 

Willow Creek already have been noted for elevated concentrations of total dissolved solids, as mentioned in 

Chapter 3.0. Estimates of accelerated erosion, sedimentation, and salinity effects could be made for the No 

Action Alternative and other alternatives, but these would be of little value without further data collections and 

detailed analyses to compare results to background conditions. Existing data limit the reliable quantification of 

accelerated erosion, sediment yield, and salinity impacts on water quality from any project alternative. 

Using estimates based on existing NEPA documents accompanied by UDOGM data, less than 5 percent of 

the lower White River basin area between Bonanza and Ouray (1,100 square miles) currently is disturbed by 

oil and gas activity. The proportion of disturbance may be greater within individual subwatersheds, as indicated 

in Table 4.13-1 and subsequent tables. Based on Table 4.13-1 (which indicates generally small incremental 

disturbance distributed in the watersheds), as well as the proposed measures in the drilling and operating 

plans and the existing background conditions in the region, overall water quality impacts from accelerated 

erosion and sedimentation are not anticipated to substantially affect existing beneficial uses of surface water. 

The largest incremental disturbances under the No Action Alternative would occur in the Cottonwood Wash 

and Sand Wash watersheds. This primarily is due to their comparatively smaller overall areas, and 

comparatively larger areas within the GNBPA. As indicated in Chapter 3.0, these streams do not exhibit 

perennial flows, and support secondary recreation such as wading, warmwater game fish and aquatic life, and 

agricultural uses such as livestock watering. The beneficial uses of these streams may be adversely affected 

by water quality impacts from the No Action Alternative, but overall impacts in the GNBPA are not expected to 

be significant. 

Within the lower White River basin, quantitative salinity or sedimentation impacts from additional disturbance 

under the No Action Alternative are not readily distinguished from the variations already represented in the 

historical record (Section 3.13.1.3). The salinity of surface water resources, as measured by electrical 

conductivity, is likely to increase a small amount due to increases in runoff and sediment yield from disturbed 

land surfaces. Increases from this source are not anticipated to substantially affect existing beneficial uses. In 

general, the magnitude and distribution of project features are such that water quality effects from runoff, 

erosion, and sedimentation essentially would result from limited non-point sources. Implementation of 

ACEPMs (Appendix A) and Gold Book practices would reduce these impacts. 

However, the potential does exist for adverse water quality effects from more site-specific sources. These 

include spills of chemicals, seepage of produced water or drilling fluids from leaky pits, water pipeline leaks or 

ruptures, leaks or spills during equipment parking and refueling, and produced water leaking from abandoned 

wells. The concentrations of total dissolved solids, as well as other contaminants, could enter surface waters 

through these mechanisms. Depending on the amount of a release and its transport to and within a receiving 

stream, these water quality impacts may or may not be significant. Most of these impacts would be avoided by 

constructing containment berms and by implementing spill prevention and countermeasure programs as 

proposed. 

In addition, compliance with Utah Rule 649-3-24 (Plugging and Abandonment of Wells) would avoid or mitigate 

water quality impacts from saline well seepage on state or private lands. On BLM lands and split-estate lands, 

compliance with approval procedures and reporting requirements for well plugging and abandonment 

according to Onshore Oil and Gas Order Number 1, the Gold Book, and Sundry Notices and Reports on Wells 

Form 3160-5 would avoid or mitigate water quality impacts from saline well seepage. Along streams, 

floodplains, and riparian areas outside BLM or state management, drilling activities and pipelines may 

contribute to water quality impacts. 

DEIS 4-115 July 2010
If an unburied pipeline carrying saline water ruptured or leaked profusely into a stream channel or on a 

floodplain, substantial adverse impacts would occur to water and/or sediment quality. If impacts did occur, 

most would be temporary but could be extensive. Where pipelines would cross BLM surface lands, compliance 

with planning goals and objectives for soil and water resources and Appendix B (Hydraulic Considerations for 

Pipelines Crossing Stream Channels) of the approved BLM Vernal RMP (BLM 2008b) would avoid or mitigate 

the potential for water quality impacts from pipeline leaks or ruptures. If leaks or ruptures of pipelines carrying 

saline water or other liquids occurred at inadequate stream crossings located outside BLM jurisdiction, 

substantial water quality impacts could occur. 

Runoff and Flood Hydrology 

Impacts to runoff and flood hydrology would be minimal under the No Action Alternative, since watershed 

disturbance would be comparatively minor (Table 4.13-1). There would be some increase in runoff volume, 

and drainages would respond somewhat faster to precipitation or snowmelt. These effects would result from 

increasing the extent of impervious surfaces by building well pads, access roads, camps, and other features. 

In addition, road ditches would act as conduits for runoff. Given the relatively small storm precipitation amounts 

(Table 3.13-3) and the anticipated portions of watershed disturbance, changes in runoff and streamflow 

patterns are expected to be minimal and local. Based on Table 4.13-1, impacts could be most noticeable in 

the Cottonwood Wash and Sand Wash watersheds. By its nature in the region, the timing of runoff would 

remain short and seasonal. 

Potential impacts from project components on the hydraulics of large floods are discussed under the next 

section, Floodplains, Wetlands, and Waters of the U.S. 

4.13.1.2 Impacts to Floodplains, Wetlands, and Waters of the U.S. 

Floodplain Conveyance

Under the No Action Alternative, impacts to floodplain conveyance would be controlled through implementation 

of provisions specified in previous NEPA decisions and applicable state and local government requirements. 

As stated in Chapter 2.0, Alternative-specific Activities, well pads and related disturbance within the respective 

project boundaries of the Bonanza Area EA and the Chapita Wells-Stagecoach Area EIS would be avoided or 

excluded from the 100-year floodplain within the White River Corridor. Existing BLM planning stipulations 

contain similar provisions for other active floodplains along Bitter Creek and the Green and White rivers 

(BLM 2008b). 

Figure 3.13-3 illustrates all floodplains within the GNBPA. Many of these areas are related to ephemeral and 

intermittent tributaries of the White River, and typically are as extensive and flood-prone as the Bitter Creek 

floodplain. Other than timing considerations for recreation, no restrictions on the type or extent of disturbance 

within floodplains are defined for the No Action Alternative, aside from the previous NEPA project provisions 

and restrictions that would be applied on BLM-administered lands through applicable BLM planning decisions 

and stipulations. If surface disturbance or occupancy of floodplains occurred elsewhere within the GNBPA, 

impacts to flood conveyance and other resource values could result. 

Under the No Action Alternative, impacts to floodplains may occur on Indian Trust Lands, or on state- or 

privately-owned lands within the GNBPA. Potential disturbance could involve construction of new well pads, 

access roads, or pipelines as described in Chapter 2.0. Based on proximity to the White River, the greatest 

potential for floodplain disturbance would result from additional development at existing or new well pads in 

Sections 1 through 6 of T9S, R21E, as shown by comparing Figures 2.4-1 and 3.13.-3. Disturbance also 

could occur at more scattered well pad locations further west, in floodplains along the White and Green rivers. 

Under the No Action Alternative, approximately 130 approved wells could be located on 100-year floodplains 

within the GNBPA but outside the BLM surface management area. Assuming that these would be constructed 

as new well pads that occupy 2.5 acres each, approximately 325 acres could be disturbed on 100-year 

floodplains under the No Action Alternative. This would represent approximately 3 percent of the 100-year 

DEIS 4-116 July 2010
floodplains mapped in the GNBPA. Additional floodplain acreage associated with new access roads may be 

disturbed as well. 

Flow areas could be constricted by the placement of well pads, construction/production facilities, or access 

roads in floodplains. Constrictions may reduce the capacity of the floodplain to convey flood flows, sediment, 

and other debris under flood conditions. In addition, undersized culverts, bridges, or fords along access roads 

would constrict flood flows if these features were built. In general, flow constrictions along Cottonwood Wash, 

Sand Wash, Coyote Wash, Willow Creek, and other tributaries of the White River would increase flow 

velocities at the sites where they occurred. Similar effects could occur on the White River, Green River, and 

Bitter Creek floodplains, depending on land management provisions. Slower velocities and increased 

floodwater surface elevations generally would occur upstream of floodplain constrictions if they occurred. 

Consequently, these hydraulic effects would increase the risk of flood-related damages at the site of the 

constriction and locally upstream. If flood-borne debris were to strike project features or collect on them, 

additional damages may result. Implementation of Gold Book standards and management decisions for 

floodplains and riparian resources, as set forth in the BLM Vernal RMP (BLM 2008b), would avoid these 

impacts on BLM-administered land. 

Wetlands and Waters of the U.S.

Riparian resources would be affected as a result of road and pipeline crossings constructed under the No 

Action alternative. Such impacts were previously identified in earlier NEPA documents. As described for the 

selected alternative under the Bonanza Area EA, no direct impacts would occur to wetlands or Waters of the 

U.S. within that project area. However, indirect impacts to the White River floodplain, wetlands, or riparian 

zones could occur due to increased runoff and erosion from additional surface disturbance (BLM 2006b). As 

described for the selected alternative of the Love Unit EA, approximately 20 acres would be disturbed along 

Cottonwood Wash (16 acres) and Sand Wash (4 acres) as a result of surface activities (BLM 2006c). As 

described for the selected alternative of the Chapita Wells-Stagecoach Area EIS, EOG would directly and/or 

indirectly impact various tributary floodplains but not the White River Corridor (BLM 2008d). 

Impacts would occur from construction activities occurring within floodplains or in wetlands, riparian areas, or 

Waters of the U.S. that are not administered by the BLM. Approximately 325 acres could be disturbed on 

100-year floodplains or riparian areas under the No Action Alternative. Additional disturbance from access 

roads on floodplains also would occur. Construction may increase erosion and sedimentation, and modify the 

floodplain surface as well as channel beds and banks. These effects may create indirect impacts on nearby 

riparian vegetation or directly affect habitat for wildlife and endangered fisheries. Other degradation of natural 

and beneficial functions served by floodplains also may occur. As described above and in the Bonanza Area 

EA (BLM 2006b) and the Chapita Wells-Stagecoach Area EIS (BLM 2008d), the No Action Alternative may 

adversely impact water quality, and these impacts may adversely affect wildlife and plant species further 

downstream. 

4.13.1.3 Impacts to Groundwater 

Groundwater exists in shallow unconsolidated alluvium along rivers, ephemeral washes, and in deeper 

bedrock formations beneath the GNBPA. Potential impacts to shallow alluvial groundwater resources include 

contamination during drilling of new wells, spills of fuels or produced fluids from well pads, surface pipelines, 

and compressor stations. 

Shallow groundwater underlying the well field has been used for oil and gas activities. Based on available well 

logs (Utah Division of Water Rights 2009), shallow groundwater overlain by porous sediments occurs within 

the alluvial deposits along the White and Green rivers. Depths to waterbearing zones range from 

approximately 35 to 65 feet, and these typically are overlain by non-restrictive sands or silts (Utah Division of 

Water Rights 2009). Historically, groundwater withdrawals for wellfield activities have been made from these 

relatively shallow zones from wells owned by commercial suppliers. As described in Chapter 2.0, a similar 

approach to water supply would be used for the No Action Alternative. Pumping effects on the alluvial aquifer 

DEIS 4-117 July 2010
and adjoining streams may take the form of temporary, local declines in water table elevations and channel 

flows. Based on the relatively small amount of demand (roughly 250 acre-feet per year from various wells), 

such effects are not expected to be substantial. 

Seepage or spills of produced water or drilling fluids from pits could adversely affect water resources in areas 

of shallow groundwater on floodplains or riparian areas. Environmental management of oil and gas 

development on USITLA lands is conducted in compliance with UDOGM regulations (Bonner 2008). If drilling 

were to take place on lands administered by the state, compliance with Utah Rule 649-3-16 and associated 

measures would reduce or prevent potential impacts to water resources from pits containing produced water 

or drilling fluids. This state regulation governs the location, construction, and abandonment of pits and sumps 

so as to contain fluids and not contaminate waters and soils. In other state guidelines, pits would not be 

allowed in a drainage or floodplain of flowing or intermittent streams (Hunt 1996). Pits would require lining if 

selected ranking criteria were met (Hunt 1996). In addition, pit contents are required to meet UDOGM chemical 

criteria prior to abandonment, or be removed. Perforation or ripping of pit liners is not normally conducted, and 

is only allowed under state regulations if levels of total dissolved solids and total petroleum hydrocarbons meet 

appropriate state requirements and would not pollute waters (Kierst 2009). Burial of pit liners and materials in 

place, with subsequent backfilling and site reclamation, is normally done on upland sites in the region. This is 

by far the dominant pit location and abandonment approach in the area (Hackford 2008). 

Where BLM administers the land surface, compliance with BLM management decisions to protect floodplains 

and riparian areas generally would prevent development pits from being located in those areas (BLM 2008b). 

In cases where drilling may be allowed in BLM floodplains or riparian areas, compliance with provisions in 

management decision RIP-2 of the Vernal RMP (BLM 2008b) would reduce impacts. 

In adherence to BLM On-Shore Order #2 (43 CFR 3164.1), groundwater is protected during drilling and 

operation by sealing the well bore from any surrounding aquifers. 

BLM Onshore Order #2, Section B: Casing and Cementing Requirements: 

“The proposed casing and cementing programs shall be conducted as approved to protect and/or 

isolate all usable water zones, lost circulation zones, abnormally pressured zones, and any 

prospectively valuable deposits of minerals. Any isolating medium other than cement shall receive 

approval prior to use. The casing setting depth shall be calculated to position the casing seat opposite 

a competent formation which will contain the maximum pressure to which it will be exposed during 

normal drilling operations. Determination of casing setting depth shall be based on all relevant factors, 

including: presence/absence of hydrocarbons; fracture gradients; usable water zones; formation 

pressures; lost circulation zones; other minerals; or other unusual characteristics. All indications of 

usable water shall be reported.” 

Upper productive aquifers also are protected by the State of Utah, Administrative Rule R649-3-9, Drilling and 

Operating Practices, Protection of Upper Productive Strata: “No well shall be deepened for the purpose of 

producing oil or gas from a lower stratum until all upper productive strata are protected, either permanently by 

casing and cementing or temporarily through the use of tubing and packer, to the satisfaction of the division.” 

Well plugging would be conducted in accordance with Gold Book procedures for sundry notices and approvals 

(USDOI and USDA 2007) and Utah Administrative Code, Rule R-649-3-24 (Utah Administrative Code 2008b). 

All evaporation ponds already have been constructed, and no additional ponds are anticipated for the No 

Action or any other alternative. Therefore, impacts from saline produced water or seepage from deep aquifers 

would be avoided. By implementing environmental measures and complying with agency regulations, 

procedures, and guidelines, impacts to shallow groundwater resources and adjoining surface waters would be 

reduced or avoided. 

DEIS 4-118 July 2010
Water in the deeper consolidated aquifers generally is high in dissolved solids. The water quality generally 

becomes poorer and much higher in dissolved solids with depth. Groundwater in the Green River Formation 

beneath the GNBPA is most likely very high in dissolved solids (>3,000 mg/l) and, for the most part, usable for 

industrial purposes (Holmes and Kimball 1987). BLM (Onshore Order No. 2) considers any groundwater from 

fresh (<1,000 mg/l) to moderately saline (<10,000 mg/l) as usable water, which is to be protected. The use of 

state-of-the-art drilling and completion techniques would make contamination of any deeper groundwater 

zones unlikely. 

Under the No Action Alternative, KMG would continue management of produced water through evaporation, 

injection, or recycling (Section 2.4.2.5). Almost all of the produced water in excess of the 7,500-BWPD 

disposal capacity of existing evaporation ponds will be injected into existing disposal wells. As discussed in 

Section 3.13.3.2, KMG currently is using the Birds Nest aquifer for injection of most of this produced water. 

According to KMG, injection of an estimated 16,000,000 bbl of water into the Birds Nest aquifer since 1994 has 

resulted in an area of the aquifer containing injected water that is approximately 170 acres in size. KMG is 

injecting smaller volumes of produced water into the lower Green River Formation and the upper Wasatch 

Formation. Injection of produced water in the GNBPA is regulated by the USEPA (Section 2.5.5.1) under the 

UIC program, which provides for the protection of underground sources of drinking water (USDWs). Assuming 

compliance with UIC program regulatory requirements, impacts to groundwater under the No Action 

Alternative are not anticipated other than an increase in storage within saline aquifers. 

4.13.2 Proposed Action Alternative 

Under the Proposed Action Alternative, 3,675 wells would be constructed at an approximate rate of 358 wells 

per year over a 10-year timeframe, including associated infrastructure (e.g., compressor stations, gathering 

pipelines, access roads). KMG would implement oil and gas development using ACEPMs including interim and 

final reclamation as well as road design and construction standards. A summary of ACEPMs can be found in 

Appendix A.

4.13.2.1 Impacts to Surface Water 

Watershed Areas 

Under the Proposed Action Alternative, new disturbance in the GNBPA would be 12,658 acres, and total area 

for the existing plus No Action plus Proposed Action disturbance would be 25,125 acres. Pipelines would be 

constructed to transport gas and produced water. Most pipelines would be laid on the land surface, but some 

would be buried. Further details about surface disturbance associated with the Proposed Action are presented 

in Chapter 2.0. 

Assuming that disturbed areas would be spaced consistently across the major watersheds, portions of these 

watersheds would be incrementally affected as approximated in Table 4.13-2. The overall extent of existing 

disturbance on BLM-managed lands in the GNBPA was analyzed in previous NEPA documents. 

Table 4.13-2 Previously Authorized and New Surface Disturbance in Major

Action Alternative 

Watersheds, Proposed 

Estimated Percent of Estimated Percent of 

Overall Area within New Overall Area, Total Overall Area 

Area GNBPA Disturbance New Disturbance Total 

Stream or River Drainage (acres) (acres) (acres) Disturbance (acres) Disturbance 

Agency Draw-Willow Creek 98,560 16,512 1,284 1.30 2,279 2.31 

Bitter Creek 254,720 10,880 856 0.33 1,586 0.62 

Cottonwood Wash 45,440 39,744 3,090 6.80 6,963 15.32 

Coyote Wash 145,920 19,520 1,518 1.04 2,726 1.87 

DEIS 4-119 July 2010
Table 4.13-2 Previously Authorized and New Surface Disturbance in Major Watersheds, Proposed 

Action Alternative 

Estimated Percent of Estimated Percent of 

Overall Area within New Overall Area, Total Overall Area 

Area GNBPA Disturbance New Disturbance Total 

Stream or River Drainage (acres) (acres) (acres) Disturbance (acres) Disturbance 

Sand Wash 45,440 21,568 1,677 3.69 5,022 11.05 

White River1 3,276,800 51,328 3,990 0.12 6,079 0.19 

4-120

1

 Excludes named tributary areas already listed in the table. 

Under the Proposed Action, a total of well under 0.5 percent of either the Lower Pariette Draw or the Pelican 

Lake – Green River watersheds would be disturbed. Additional project disturbance generally would occur in 

downstream locations within the White River watershed. As a result, those surface water impacts that do occur 

are likely to have greater effects on downstream resources. 

Surface Water Uses and Flows 

Under the Proposed Action, impacts to surface water quantities from fresh-water withdrawals would be similar 

to those described for the No Action Alternative. Based on water use estimates for well drilling and completion, 

plus other demands for dust control, mancamps, and compressor stations, roughly 750 to 800 acre-feet of 

water would be required per year during development of the Proposed Action over approximately 10 years. If 

half of this originated from recycled water, approximately 390 acre-feet per year of new withdrawals would be 

required. If water recycling is employed as planned, and approximately 225 acre-feet per year primarily would 

be obtained from groundwater as described in Chapter 2.0, then approximately 165 acre-feet per year may be 

needed from the Green River for the Proposed Action. The lowest daily flow in the Green River in the past 

20 years has been about 10 times the amount that the Proposed Action may need annually from the river. 

Following reasoning similar to that of the No Action Alternative, no impacts from surface water withdrawals are 

anticipated from the Proposed Action. 

Surface Water Quality

The types of impacts to surface water quality would be similar to those described for the No Action Alternative. 

The proposed ACEPMs (Appendix A) and implementation of practices to achieve BLM goals, objectives, and 

management decisions in the Vernal RMP would reduce the severity and extent of these impacts on 

BLM-administered lands. 

Some increases in flow turbidity, sediment loads, and salinity would occur in surface waters from additional 

disturbance. The magnitudes of these impacts would depend on the implementation, success, and 

maintenance of the proposed control measures. Similar to that described for the No Action Alternative, the 

salinity of surface water is likely to increase somewhat due to increases in sediment yield from naturally 

occurring saline land surfaces. Salinity increases from this source are not anticipated to substantially affect 

existing beneficial uses. Similar to the No Action Alternative, under the Proposed Action the largest 

incremental disturbances would occur in the Cottonwood Wash and Sand Wash watersheds. This primarily is 

due to their comparatively smaller overall areas, and comparatively larger areas within the GNBPA. Streams in 

these watersheds are not perennial. Locally, the beneficial uses of these streams may be adversely affected 

by water quality impacts from the Proposed Action, but overall impacts in the GNBPA would be limited. 

If there were substantial spills of chemicals, seepage of produced water or drilling fluids from leaky pits, water 

pipeline leaks or ruptures, leaks or spills during equipment parking and refueling, or produced water leaking 

from pipelines or abandoned wells, these sources could have adverse effects on surface water quality. 

Depending on the amount of a release and its transport to and within a receiving stream, these adverse 

impacts could be severe. In compliance with regulations, impacts would be avoided by constructing 

DEIS July 2010
containment berms and implementing spill prevention and countermeasure programs according to SPCCPs as 

described in Section 2.5.6, Hazardous Materials and Solid Waste. Impacts from pit seepage would be reduced 

as discussed under the No Action Alternative. In addition, the ACEPMs (Appendix A) include locating 

emergency spill response equipment near the White River. With booms, other equipment, and trained 

personnel in the area, the severity of surface water impacts would be reduced. If impacts did occur, most 

would be localized and temporary. However, if an unburied pipeline carrying saline water ruptured or leaked 

profusely into a stream channel or on a floodplain, severe adverse impacts would occur to water and/or 

sediment quality. As stated in Appendix A, except for existing pipelines and projects previously approved, 

KMG would bury gas pipelines associated with new and future construction within 100-year floodplains. KMG 

would utilize the applicable USFWS BMPs for work in Utah streams where pipelines or roads cross a stream. 

Additionally, KMG would utilize BLM Hydraulic Considerations for Pipeline Crossings of Stream Channels, as 

prepared by the BLM Utah State Office and presented in the Vernal RMP (BLM 2008b). By implementing 

these practices, KMG substantially would reduce the potential for spills or leaks from pipelines at stream 

crossings. 

As with the No Action Alternative, if drilling were to take place on floodplains or riparian areas regulated by the 

state, compliance with Utah Rule 649-3-16 and associated ranking criteria (Hunt 1996) would reduce potential 

impacts to water resources from pits containing produced water or drilling fluids. In addition, compliance with 

Utah Rule 649-3-24 (Plugging and Abandonment of Wells) would avoid or mitigate water quality impacts from 

saline well seepage on state or private lands. On floodplains and riparian areas outside BLM or state 

management, drilling activities and pipelines may cause water quality impacts. 

Runoff and Flood Hydrology 

Under the Proposed Action, impacts to runoff and flood hydrology would be similar in nature to those 

described for the No Action Alternative. The magnitude of these impacts would be more substantial, and they 

would be more extensive due to the greater area of disturbance associated with the Proposed Action 

(Table 4.13-2). Because of the potential for closely spaced roads and well pads, local hydrologic impacts could 

be substantial. These adverse impacts, which would consist of locally greater runoff and shorter response 

times, would be most likely to occur in small subwatersheds where project components were concentrated 

near streams. Based on Table 4.13-2, impacts to runoff and flood hydrology could be more extensive in the 

Cottonwood Wash and Sand Wash watersheds. 

4.13.2.2 Impacts to Floodplains, Wetlands, and Waters of the U.S. 

Floodplain Conveyance

Under the Proposed Action, impacts to floodplain conveyance would be similar in nature to those described 

for the No Action Alternative. The magnitude of these impacts would be more substantial, and they would 

be more extensive due to the greater area of disturbance associated with the Proposed Action (Table 4.13-2). 

Impacts would occur from construction activities occurring within floodplains that are not administered by the 

BLM. As stated in Section 2.6.2.2, analysis of infill drilling and multiple-well pads for the Proposed Action 

assumes that vertical wells would be drilled at all locations. Under the Proposed Action, approximately 

115 wells could be located within project acreage distributed on 100-year floodplains outside the BLM surface 

management area. Assuming that these would be constructed as new well pads that occupy 2.5 acres each, 

approximately 288 acres could be disturbed on 100-year floodplains under the Proposed Action. Additional 

disturbance from access roads on tribal floodplains also would occur. Impacts would be the same as described 

for the No Action Alternative, but would be more extensive. The Proposed Action would incrementally disturb 

approximately 2.6 percent of the 100-year floodplains mapped in the GNBPA. 

The severity of impacts would depend on their location and the nearby features in the affected floodplain. If 

impacts occurred, they would be most severe if located along the lower reaches of streams, or near 

confluences between larger tributaries. Depending on their severity, floodplain and stream channel 

modifications could create long-term erosion and sedimentation impacts within the watershed, since drainage 

systems adjust to large disturbances and instabilities over several decades or more. 

DEIS 4-121 July 2010
Wetlands and Waters of the U.S.

As summarized in Chapter 2.0, Section 4.13.1.1 Current Management Actions, and in the Vernal RMP, the 

BLM restricts surface disturbance or occupancy in riparian habitats. Based on these policies and the 

implementation of ACEPMs, impacts to wetlands would be largely avoided on BLM-administered lands under 

the Proposed Action Alternative. Exemptions to these policies may be granted if there are no practical 

alternatives, or if potential impacts could be fully mitigated. 

If exemptions are granted, potential construction impacts may include, but are not limited to, clearing of all 

vegetation, topsoil handling during construction and restoration, and potential temporary disturbance of 

subsurface hydrology. Potential post-construction impacts may include alteration of vegetation composition 

resulting from the establishment of noxious weeds and invasive plant species. 

If exemptions are granted, KMG would apply appropriate wetland construction procedures as defined in the 

BLM Gold Book to ensure successful mitigation. These procedures may include, but are not limited to, 

expedited construction in and around wetlands, restoration of wetlands to their approximate original 

configurations and contours, permanently stabilizing upland areas near wetlands as soon as possible following 

disturbance, and periodically inspecting the on-site activities during and after construction to ensure that 

impacts to wetlands are fully mitigated. In addition, KMG would implement interim and final reclamation 

techniques as defined in the Reclamation Plan (Appendix E) and the Integrated Weed Management Plan 

(Appendix J) to stabilize the growth media, reduce soil erosion, and prevent the establishment and spread of 

noxious weeds and invasive species. 

Compliance with the BLM RMP management decisions and implementation of environmental measures would 

reduce impacts on BLM-administered lands. If wetlands or riparian areas were disturbed elsewhere in the 

GNBPA, mitigation would be difficult due to the arid climate and presence of invasive species. In such cases, 

long-term impacts to these resources and their habitat values could occur. 

Under the Proposed Action, surface disturbance activities could directly impact waterbodies such as Bitter 

Creek, Cottonwood Wash, Sand Wash, Coyote Wash, Willow Creek, and the White River. Construction 

impacts may include erosion and sedimentation of stream channels, the introduction of contaminants into flows 

and/or existing channel sediments, or other water quality impacts as discussed previously. Cuts-and-fills at 

streams associated with access road crossings, buried pipeline crossings, or other project features may affect 

the extent and cross-sectional geometry of Waters of the U.S. The extent of impacts would depend on 

presence of water at the time of construction, channel crossing methods, erosion controls during construction, 

and the subsequent success of reclamation and stabilization. To minimize impacts at stream crossings, KMG 

would apply appropriate waterbody construction procedures on BLM-administered lands as defined in the BLM 

Gold Book. In addition, the implementation of RAPPS (Horizon Environmental Services 2004) and 

environmental measures described in Appendix A would reduce impacts to Waters of the U.S. on lands within 

the GNBPA that are not administered by BLM. No impacts associated with operational activities are 

anticipated, unless maintenance activities are required in or near streams. In such cases, the impacts and 

mitigation measures would be similar to those described for construction activities. 

4.13.2.3 Impacts to Groundwater 

Under the Proposed Action Alternative, drinking water sources from shallow groundwater aquifers have the 

potential to be impacted by drilling activities and would be protected through proper completion of oil and gas 

wells. On federal leases, usable groundwater resources would be protected during drilling in accordance with 

BLM Onshore Oil and Gas Order No. 2, which requires that all formations containing usable quality water 

(≤10,000 mg/L total dissolved solids) be isolated and protected utilizing cement. For an existing lease overlying 

a DWSPZ, a COA would be attached to an approved APD requiring the lessee/operator to contact the public 

water system manager to determine any zoning ordinances, best management or pollution prevention 

measures or physical controls that may be required within the protection zone. 

DEIS 4-122 July 2010
Containment structures would be constructed around all tank batteries consistent with USEPA’s SPCC 

regulations. In accordance with the Notice to Lessees NTL-3A, all spills or leakages must be reported 

immediately by the operator to the BLM. 

Application of stipulations and lease notices and adherence to the above guidance, regulations, Onshore Oil 

and Gas Orders, and COAs effectively would eliminate, reduce, or mitigate potential impacts to usable 

groundwater sources. 

Assuming that groundwater withdrawals would not be continuous and that supply wells would be separated 

geographically within the GNBPA or surrounding area, potential impacts on local or regional groundwater 

supplies would be minimal. Drawdown effects on the White or Green rivers may occur if more substantial 

pumping rates occurred nearby. If they occurred, these effects would be temporary and relatively small in 

comparison to river flows. 

The primary difference between the No Action Alternative and the Proposed Action is the number of disposal 

wells to be installed. This alternative includes the installation of 3,675 new wellbores and the installation of 

15 disposal wells, to be used in conjunction with 5 existing disposal wells. Injection of produced water in the 

GNBPA (Tribal and non-Tribal lands) is administered by the USEPA UIC Program (USEPA 2002a,b). This 

program provides for the permitting of injection wells in a manner that will prevent pollution and damage to any 

USDW. 

The 15 new injection wells to be installed under the Proposed Action would be completed into the Birds Nest 

aquifer within an area of the aquifer currently being used for subsurface disposal of produced water. In this 

area, aquifer water quality is poor, ranging from 18,600 to 66,300 mg/l. As discussed in Section 2.6.2.6, 

approximately 29,500 BWPD of produced water would be generated under the Proposed Action, most of 

which would be disposed of by injection into the subsurface. The new injection wells would be permitted by the 

USEPA, which is the authorizing regulatory agency for the UIC program on lands defined as “Indian Country” 

(18 USC 1151); the entire GNBPA is within Indian Country. Disposal of produced water under the UIC 

program is a highly regulated activity that provides for the protection of USDWs. Assuming compliance with 

UIC program regulatory requirements, injection of produced water under the Proposed Action Alternative is not 

anticipated to impact other USDWs in the GNBPA. Due to the increased volume of produced water to be 

injected relative to the No Action Alternative, the portion of the aquifer containing injected water would be 

expected to increase in size. However, injection activity can only take place where pre-existing groundwater 

quality (TDS greater than 10,000 mg/l) precludes other uses of the water. 

While most produced water would be re-injected into the subsurface, water that cannot be re-injected because 

the quality is lower than the groundwater in the aquifer, would be trucked to existing water disposal and 

treatment facilities. Water disposal facilities include both KMG and commercially operated wells and 

evaporation ponds. 

Produced water may be used for hydraulic fracturing as described in Section 2.4.2.4, Produced Water 

Disposal. Hydraulic fracturing (“hydrofrac-ing”) is a technique used by the oil and gas industry to improve the 

production efficiency of a formation. The hydraulic fracturing process uses high hydraulic pressures to initiate a 

fracture. A hydraulically induced fracture acts as a conduit in the formation that allows the oil or natural gas to 

travel more freely from the rock pores to the production well that can bring it to the surface (USEPA 2008b). 

The USEPA conducted a study that assesses the potential for contamination of USDWs from the injection of 

hydraulic fracturing fluids into other industrial wells. The USEPA collected and assessed real world 

observations and empirical data, and also evaluated the theoretical potential for hydraulic fracturing to affect 

USDWs. Based on the information collected and reviewed, the USEPA concluded that the injection of 

hydraulic fracturing fluids into wells posed little or no threat to USDWs (USEPA 2004). Recently, Congress has 

requested that the USEPA conduct a peer-reviewed, scientific study of the relationship between hydraulic 

fractioning and USDWs. 

DEIS 4-123 July 2010
Within the GNBPA, drilling standard operating procedures specify that “no chemicals subject to reporting under 

SARA Title III in an amount equal to or greater than 10,000 pounds will be used, produced, stored, 

transported, or disposed of annually in association with the drilling, testing, or completing of this well. 

Furthermore, no extremely hazardous substances, as defined in 40 CFR 355, in threshold planning quantities, 

will be used, produced, stored, transported, or disposed of in association with the drilling, testing, or completing 

of this well.” 

Based on these findings and assuming project compliance with regulatory requirements, impacts to 

groundwater resources would be reduced or mitigated. 

4.13.2.4 Mitigation and Mitigation Effectiveness 

In addition to the successful implementation of Standard Operating Procedures and the adherence to 

provisions of permits approved by appropriate reviewing and authorizing agencies, the following additional 

mitigation measures for the Proposed Action, in addition to the VEG-1 mitigation measure (Section 4.11.2.2), 

would be required by the BLM to prevent or reduce impacts to water resources: 

WATER-1 Where the development of new wells in 100-year floodplains is unavoidable, closed-loop 

circulation systems for drilling fluids would be used. 

WATER-2 Well density would be limited to no less than 40-acre spacing surface density within 0.5 mile of 

floodplains (including the floodplain) of major drainages (Sand Wash, Cottonwood Wash, Bitter 

Creek, White River, and Green River) and within occupied threatened and endangered plant 

habitat. This mitigation measure would be applied only if there is a demonstrated need (i.e., 

only if other mitigations do not adequately mitigate impacts). 

WATER-3 Construction of new compression would not occur within 0.5 mile of floodplains (including the 

floodplain) of major drainages (Sand Wash, Cottonwood Wash, Bitter Creek, White River, and 

Green River) and within occupied threatened and endangered plant habitat. This mitigation 

measure would be applied only if there is a demonstrated need (i.e., only if other mitigations do 

not adequately mitigate impacts). 

WATER-4 Any pits used to store drilling fluids or produced water on or within 300 feet of wetlands, riparian 

areas, floodplains, or channels with defined bed and banks would be lined with clay or a 

restrictive synthetic material. After use, any lined pits would be abandoned in accordance with 

appropriate SMA regulations and guidance. 

WATER-5 Storage and parking locations for hazardous materials, lubricants, fuel tanks or trucks, and 

refueling activities would be a minimum distance of 100 feet from wetlands, riparian areas, and 

channels with defined bed and banks. Such materials storage or refueling activities would be 

outside the 100-year floodplains of the White River, Green River, Bitter Creek, Cottonwood 

Wash, Coyote Wash, and Sand Wash. 

WATER-6 Flow monitors would be installed on produced water pipelines to detect possible leaks. 

WATER-7 Any pipeline conveying produced water or other industrial liquid across the White River, Green 

River, Bitter Creek, Cottonwood Wash, Coyote Wash, or Sand Wash would be provided with 

shut-off valves immediately outside the 100-year floodplain on both sides of the crossing. 

Where implemented by SMAs, mitigation measures WATER-1 through WATER-3 and VEG-1 would limit 

disturbance to floodplain resources along the major perennial waterways within the GNBPA. This would be 

effective in preventing or reducing impacts to endangered fisheries habitat and impacts from changes to flood 

hydraulics and flood damages. These measures also would help maintain visual resource and recreational 

values. In addition to the ACEPMs (Appendix A), Gold Book practices, and Vernal RMP provisions where 

DEIS 4-124 July 2010
SMAs implemented the remaining WATER mitigation measures, they would help prevent or reduce impacts to 

water quality from pipeline leaks or ruptures and from other sources of spills or seepage. If SMAs or owners 

did not implement these mitigation measures, then impacts to floodplains, wetlands, riparian areas, and other 

water resources would occur as previously described. 

4.13.2.5 Residual Impacts 

Surface Water

Residual impacts to surface water resources primarily would consist of ongoing turbidity and sedimentation 

effects from accelerated erosion. These impacts are expected to be slight with respect to background 

conditions in the region. 

Floodplains, Wetlands, and Waters of the U.S.

With respect to these features, impacts from surface disturbance would be reduced based on existing BLM 

management decisions, the ACEPMs, additional mitigation measures recommended here in Section 4.13.2, 

and recommended additional mitigation measure VEG-1. If waivers or exceptions to these provisions are 

allowed, then impacts would occur as described previously. 

Groundwater

Residual groundwater impacts would consist of increased aquifer storage due to the injection of produced 

water into saline aquifers. These impacts would not affect groundwater quality because the produced water is 

of similar quality to the naturally occurring groundwater in the aquifer. 

4.13.3 Resource Protection Alternative 

The Resource Protection Alternative would be similar to the Proposed Action, but places a limit on the 

maximum number of new well pad locations to 1 pad per 40 acres (maximum of 16 well pads per section). 

Based on proposed activities identified in Section 2.5, 3,675 new wellbores would be constructed at a rate of 

358 wells per year over a 10-year timeframe, including associated infrastructures (e.g., compressor stations, 

gathering pipelines, access roads). KMG would implement development using environmental protection 

measures consistent with the ACEPMs (Appendix A) and the Reclamation Plan (Appendix E). In addition, 

KMG would restrict disturbance along floodplains and near the White River and its major tributaries, as 

discussed below under impacts to floodplain values. 

4.13.3.1 Impacts to Surface Water 

Watershed Areas 

Under the Resource Protection Alternative, new surface disturbance in the GNBPA would be 8,147 acres, 

and the total area disturbed for the existing, No Action, and Resource Protection Alternative would be 

20,615 acres. Further details about surface disturbance associated with the Resource Protection Alternative 

are presented in Chapter 2.0. 

Assuming that these disturbed areas would be spaced consistently across the major watersheds, portions of 

these watersheds would be incrementally affected as approximated in Table 4.13-3. The overall extent of 

existing disturbance on BLM-managed lands in the GNBPA was analyzed in previous NEPA documents. 

DEIS 4-125 July 2010
Table 4.13-3 Previously Authorized and New Surface Disturbance in Major 

Protective Alternative 

Watersheds, Resource 

Estimated Percent of Estimated Percent of 

Overall Area within New Overall Area Total Overall Area 

Area GNBPA Disturbance New Disturbance Total 

Stream or River Drainage (acres) (acres) (acres) Disturbance (acres) Disturbance 

Agency Draw-Willow Creek 98,560 16,512 826 0.84 1,822 1.85 

Bitter Creek 254,720 10,880 544 0.21 1,284 0.50 

Cottonwood Wash 45,440 39,774 1,989 4.38 5,862 12.90 

Coyote Wash 145,920 19,520 977 0.67 2,185 1.50 

Sand Wash 45,440 21,568 1,079 2.38 4,425 9.74 

White River1 3,276,800 51,328 2,569 0.08 4,657 0.14 

1

 Excludes named tributary areas already listed in the table. 

Under the Resource Protection Alternative, a total of well under 0.5 percent of either the Lower Pariette Draw 

or the Pelican Lake – Green River watersheds would be disturbed. Additional project disturbance generally 

would occur in downstream locations within the White River watershed. As a result, those surface water 

impacts that do occur are likely to have greater effects on downstream resources. 

Surface Water Uses and Flows

Under the Resource Protection Alternative, impacts to surface water quantities from fresh-water withdrawals 

would be similar to those described for the Proposed Action. Water demands would be similar to those for the 

Proposed Action; roughly 750 to 800 acre-feet of water would be required per year of development over 

approximately 10 years. If half of this originated from recycled water, approximately 390 acre-feet per year of 

new withdrawals would be required. Similar to the Proposed Action, little or no impacts would occur. 

Surface Water Quality

The types of impacts to surface water quality would be similar to those described for the Proposed Action. 

However, they may be reduced for the Resource Protection Alternative due to the restrictions on locating 

infield drilling and multi-well pad development with respect to the White River and related floodplain areas, as 

described for this alternative in Chapter 2.0. This approach would provide buffer zones between project 

developments and the river and related floodplains. The buffer zones would help prevent sediment or other 

substances carried in runoff from disturbed areas from reaching the White River and its major tributaries. 

ACEPMs (Appendix A) and implementation of SPCC plans as described in Section 2.5.6, Hazardous 

Materials and Solid Waste, would reduce or avoid the potential for adverse water quality impacts under the 

Resource Protection Alternative. However, if there were substantial spills of chemicals, seepage of produced 

water from leaky pits, water pipeline ruptures, or spills during equipment parking and refueling, surface water 

quality impacts generally would be similar to those of the Proposed Action. Since the hydrologic system is 

interconnected throughout the GNBPA, substantial adverse impacts could occur under such circumstances 

with the Resource Protection Alternative. Because of this, the additional mitigation measures recommended 

for the Proposed Action also would be recommended for the Resource Protection Alternative. 

Runoff and Flood Hydrology 

Under the Resource Protection Alternative, impacts to runoff and flood hydrology would be similar in nature to 

those described for the No Action Alternative or the Proposed Action. Due to the greater number of well pads 

and roads for this alternative, the magnitude and extent of these impacts would be more substantial than those 

under the No Action Alternative. Because of the wider spacing of roads and well pads under this alternative, 

the magnitude and extent of local hydrologic impacts would be less than for the Proposed Action. 

DEIS 4-126 July 2010
4.13.3.2 Impacts to Floodplain Values, Wetlands, and Waters of the U.S. 

Under the Resource Protection Alternative as stated in Section 2.7.2 (Alternative-specific Activities), the infill 

well pads would be avoided in the following locations: 1) the viewshed (i.e., line-of-sight up to 0.5 mile along 

both sides of the river) of the White River corridor, outside of the Uintah and Ouray Reservation; 2) areas 

within 600 feet of the White River within the Uintah and Ouray Indian Reservation boundary; and 3) areas 

within the 100-year floodplain of the White River and 5 miles up major tributaries. 

Because of these provisions within this alternative, impacts related to surface disturbance in 100-year 

floodplains, riparian or wetland areas, and Waters of the U.S. would be considerably less extensive than for 

the Proposed Action. Essentially, no incremental disturbance would occur to these areas under the Resource 

Protection Alternative. Beyond the areas where well pad development would be avoided (described above), 

the anticipated impacts in riparian zones, wetlands, and Waters of the U.S. would be the same as those 

described for the Proposed Action. Similarly, additional mitigation measures for the Resource Protection 

Alternative would be the same as those recommended for the Proposed Action. 

4.13.3.3 Impacts to Groundwater 

The Resource Protection Alternative proposes the installation of 3,675 production wells, the same as the 

Proposed Action. However, this alternative dictates surface spacing at 1 pad per 40 acres (16 per section). To 

improve production, the hydro-frac process would be used. This hydraulic fracturing technique uses the 

injection of high pressure water, possibly as a mixture with sand or high viscosity gel. Injection cracks apart the 

producing formation, essentially increasing porosity to increase production. Impacts to groundwater would be 

similar to those from the Proposed Action. 

4.13.3.4 Mitigation and Mitigation Effectiveness 

Additional recommended mitigation measures and their effectiveness for the Resource Protection Alternative 

would be the same as those described for the Proposed Action. 

4.13.3.5 Residual Impacts 

Surface Water

Similar to the Proposed Action, residual impacts to surface water resources primarily would consist of ongoing 

turbidity and sedimentation effects from accelerated erosion. These residual impacts would be less than those 

from the Proposed Action, due to limitations on disturbance under this alternative. 

Floodplains, Wetlands, and Waters of the U.S.

Residual impacts to these features under the Resource Protection Alternative would be less than those 

described for the Proposed Action, due to disturbance restrictions in floodplains and associated riparian zones. 

Groundwater

Residual groundwater impacts for the Resource Protection Alternative would be the same as for the Proposed 

Action. 

4.13.4 Optimal Recovery Alternative 

Under the Optimal Recovery Alternative, 13,446 new wellbores would be constructed at a rate of 672 wells per 

year over a 20-year timeframe, including associated infrastructures (e.g., compressor stations, gathering 

pipelines, access roads). This alternative is designed to maximize recovery of the gas resource by increasing 

the number of wellbores to achieve 10-acre surface and downhole spacing throughout the GNBPA. KMG 

would implement development using environmental protection measures consistent with the ACEPMs 

(Appendix A) and the Reclamation Plan (Appendix E). 

DEIS 4-127 July 2010
4.13.4.1 Impacts to Surface Water 

Watershed Areas 

Under the Optimal Recovery Alternative, new surface disturbance in the GNBPA would be 42,620 acres. The 

total area disturbed for the existing, No Action, and Optimal Recovery Alternative would be 55,088 acres. 

Further details about surface disturbance associated with the Optimal Recovery Alternative are presented in 

Chapter 2.0. 

Assuming that these disturbed areas would be spaced consistently across the major watersheds, portions of 

these watersheds would be incrementally affected as approximated in Table 4.13-4. The overall extent of 

existing disturbance on BLM-managed lands in the GNBPA was analyzed in previous NEPA documents. 

Table 4.13-4 Previously Authorized and New Surface Disturbance in Major 

Recovery Alternative 

Watersheds, Optimal 

Overall Area 

Area within 

GNBPA 

Estimated 

New 

Disturbance 

Percent of 

Overall Area 

New 

Estimated 

Total 

Disturbance 

Percent of 

Overall Area 

Total 

Stream or River Drainage (acres) (acres) (acres) Disturbance (acres) Disturbance 

Agency Draw-Willow Creek 98,560 16,512 4,322 4.39 5,318 5.40 

Bitter Creek 254,720 10,880 2,848 1.12 3,588 1.41 

Cottonwood Wash 45,440 39,774 10,404 22.90 14,277 31.42 

Coyote Wash 145,920 19,520 5,110 3.50 6,318 4.33 

Sand Wash 45,440 21,568 5,646 12.42 8,991 19.79 

1 White River 3,276,800 51,328 13,346 0.41 15,525 0.47 

1

 Excludes named tributary areas already listed in the table. 

Under the Optimal Recovery Alternative, a total of less than 1 percent of either the Lower Pariette Draw or the 

Pelican Lake – Green River watersheds would be disturbed. Additional project disturbance generally would 

occur in downstream locations within the White River watershed. As a result, those surface water impacts that 

do occur are likely to have greater effects on downstream resources. 

Surface Water Uses and Flows

Under the Optimal Recovery Alternative, impacts to surface water quantities from fresh-water withdrawals 

would be similar to those described for the Proposed Action. Total water demands of approximately 1,875 to 

1,925 acre-feet of water would be required per year of development over approximately 20 years. If half of this 

originated from recycled water, approximately 950 acre-feet per year of new withdrawals would be required. 

The amount of water withdrawn under this alternative likely would involve about 225 acre-feet per year from 

wells in the Green River alluvium as described in Chapter 2.0, and about 725 acre-feet per year from surface 

water sources. Surface water withdrawals would represent approximately 8 percent of the existing water right 

(9,400 acre-feet per year) held by the Deseret Generation and Transmission Cooperative for diversion from 

the Green River near Jensen, Utah (Utah Division of Water Rights 2009). Since the maximum allowable 

diversion rate under this right is 15 cubic feet per second, and river flows are substantially greater (as 

described under the No Action Alternative), no impacts to surface water flows are anticipated. 

Surface Water Quality

Impacts to surface water quality generally would be similar to those described for the Proposed Action, but 

would have substantially greater extent and magnitude due to the increased development under this 

alternative. 

DEIS 4-128 July 2010
Runoff and Flood Hydrology 

Under the Optimal Recovery Alternative, impacts to runoff and flood hydrology would be similar in nature to 

those described for the No Action Alternative or the Proposed Action. The magnitude of these impacts would 

be much more substantial, and they would be much more extensive, due to the greater area of disturbance 

associated with this alternative (Table 4.13-4) in comparison to the other alternatives. 

4.13.4.2 Impacts to Floodplains, Wetlands, and Waters of the U.S. 

Under the Optimal Recovery Alternative as stated in Section 2.8.2 (Alternative-specific Activities), the infill well 

pads would be excluded from the following locations: 1) the viewshed (i.e., line-of-sight up to 0.5 mile along 

both sides of the river) of the White River corridor, outside of the Uintah and Ouray Reservation; and 2) areas 

within 600 feet of the White River within the Uintah and Ouray Indian Reservation boundary. Under the 

Optimal Recovery Alternative, impacts to floodplains, wetlands, and Waters of the U.S. would be similar in 

nature to those described for the Proposed Action; however, the magnitude of these impacts would be more 

substantial and extensive due to the greater area of disturbance associated with this alternative 

(Table 4.13-4). Under the Optimal Recovery Alternative, approximately 1,510 acres of additional well pads 

would be located within 100-year floodplains in the GNBPA. This represents an incremental disturbance of 

approximately 14 percent. Additional disturbance from access roads in 100-year floodplains may occur. The 

additional mitigation measures recommended for floodplains and Waters of the U.S. under the Proposed 

Action also would apply to the Optimal Recovery Alternative. 

4.13.4.3 Impacts to Groundwater 

This alternative allows for a 10-acre surface spacing of wells. A total of 13,446 new wells would be installed, at 

the rate of approximately 672 wells per year, and up to 25 injection wells would be installed. To improve 

production, the hydrofrac-ing process would be used. As the well spacing is small, there would be a potential 

for interaction of fractures created for adjacent wells. Potential impacts to shallow groundwater would be 

avoided or reduced by compliance with regulatory programs, ACEPMs, and SMA guidelines as discussed for 

the No Action Alternative and the Proposed Action. Deeper aquifer zones may become more permeable, but 

water availability and quality for most beneficial uses would not be affected. Produced-water volumes and 

related management activities would increase, including injection of produced water into saline aquifers. 

4.13.4.4 Mitigation and Mitigation Effectiveness 

Additional recommended mitigation measures and their effectiveness for the Optimal Recovery Alternative 

would be the same as those described for the Proposed Action. 

4.13.4.5 Residual Impacts 

Surface Water

Similar to the Proposed Action, residual impacts to surface water resources primarily would consist of ongoing 

turbidity and sedimentation effects from accelerated erosion. These residual impacts would be greater than 

those of the Proposed Action, due to the greater amount of disturbance under this alternative. 

Floodplains, Wetlands, and Waters of the U.S.

Residual impacts to these features under the Optimal Recovery Alternative would be the same as those 

described for the Proposed Action. 

Groundwater

As with the Proposed Action, residual groundwater impacts for the Optimal Recovery Alternative would consist 

of increased aquifer storage due to the injection of produced water into saline aquifers. There would be 

potential for the larger volume of produced water from the Optimal Recovery Alternative to exceed the capacity 

of saline aquifers in the GNBPA. 

DEIS 4-129 July 2010
4.13.5 Relationship between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Project development may create impacts to existing beneficial uses of water (notably agriculture and aquatic 

life support) by making withdrawals and by adversely affecting runoff water quality. Assuming that reclamation 

success would be limited in the GNBPA, long-term water quality would be reduced by increased salinity, 

sediment, and turbidity in runoff. Little or no long-term impacts to the current or future beneficial uses of 

groundwater are anticipated. 

Floodplain hydrology and other resource values of floodplains, riparian areas and wetlands, and Waters of the 

U.S. could be adversely affected for the long term by project development. The severity of impacts would 

depend on the application of SMA provisions controlling the numbers and locations of well pads and roads 

within these resource features. If surface managers limited disturbance of these resource features, then 

long-term impacts would be avoided. However, if floodplain encroachments were commonly allowed or if 

riparian areas and wetlands were disturbed by project activities, then long-term impacts to these resources 

would result. Due to the nature of project features (i.e., well pad fills), these impacts would be permanent from 

a human perspective. 

4.13.6 Irreversible/Irretrievable Commitment of Resources 

4.13.6.1 Surface Water Resources 

Irreversible impacts to surface water are not anticipated since environmental measures, including reclamation, 

would mitigate effects on water quantity and quality over time. Irretrievable impacts to surface water quantity 

and quality would occur during project development, operations, and reclamation. These impacts would result 

from water consumption and reductions in water quality from salinity and sedimentation. 

4.13.6.2 Floodplains, Wetlands, and Waters of the U.S. 

Irreversible and irretrievable losses of floodplains, riparian areas, and wetlands would occur if additional well 

pads or roads were developed in these areas. 

4.13.6.3 Groundwater Resources 

No irreversible or irretrievable groundwater impacts are anticipated. 

 

DEIS 4-130 July 2010
4.14 Wilderness Characteristics 

The proposed project and alternatives have the potential to impact non-WSA lands identified by the BLM as 

having wilderness characteristics. In addition, the proposed project and alternatives have the potential to 

impact lands with wilderness characteristics that the BLM has determined to be managed as natural areas to 

protect, preserve, and maintain wilderness characteristics. 

4.14.1 No Action Alternative 

Under the No Action Alternative, drilling and completion of development wells and associated infrastructure 

would continue under the authority and COAs of existing NEPA document decisions. Resource protection 

would be provided by mitigation as required under those previous NEPA documents, lease stipulations, and 

site-specific reviews. Under the No Action Alternative, 4,702 acres of new surface disturbance would occur 

from oil and gas related activities already approved within the GNBPA. This represents approximately 

2.9 percent of the GNBPA. 

4.14.1.1 Impacts on Wilderness Characteristics 

BLM White River Natural Area

Under the No Action Alternative, no surface disturbance would occur within the BLM White River natural area, 

which is managed under a NSO stipulation (BLM 2008b). Because no surface disturbance would occur in the 

natural area, the wilderness characteristics would continue to be protected, preserved, and maintained as 

specified in the Vernal RMP (BLM 2008b). 

Non-WSA Lands with Wilderness Characteristics

In addition to the existing surface disturbance from seven producing wells and ancillary facilities on leased 

lands within the White River non-WSA lands with wilderness characteristics within the GNBPA, approximately 

81 acres of new disturbance would occur under the No Action Alternative. This represents approximately 

2.9 percent of the 2,786 acres of non-WSA lands with wilderness characteristics within the GNBPA but outside 

of the BLM White River natural area. The direct impact of this surface disturbance would be the elimination of 

wilderness characteristics on 81 acres of non-WSA land within the GNBPA. The indirect impact of this 

disturbance would be the loss of naturalness and degradation of solitude and primitive recreation opportunities 

on portions of the White River non-WSA lands with wilderness characteristics, depending upon the location 

and distribution of the lands actually disturbed under this alternative. 

Under this alternative, impacts to wilderness characteristics would continue throughout the life of the 

alternative until final reclamation is complete. Until such time, the anticipated development under the No Action 

Alternative would cause the loss of naturalness and the degradation of solitude and primitive recreation 

opportunities on portions of the non-WSA lands with wilderness characteristics within the GNBPA. 

4.14.2 Proposed Action Alternative 

Under the Proposed Action Alternative, operators would drill 3,675 wellbores at a rate of 358 wells per year 

over a 10-year timeframe, including construction of associated infrastructure (e.g., compressor stations, 

gathering pipelines, access roads). Construction of the proposed wells, pipelines, access roads, and ancillary 

facilities under the Proposed Action would disturb approximately 12,658 acres throughout the GNBPA. This 

represents approximately 7.8 percent of the GNBPA. 

4.14.2.1 Impacts to Wilderness Characteristics 

BLM White River Natural Area

Under the Proposed Action Alternative, no surface disturbance would occur within the BLM White River natural 

area because the BLM manages this area under a NSO stipulation. For this reason, the wilderness 

DEIS 4-131 July 2010
characteristics of the area would continue to be protected, preserved, and maintained as specified in the 

Vernal RMP (BLM 2008b). 

Non-WSA Lands with Wilderness Characteristics

Well pad development under the Proposed Action would occur on up to 20-acre surface spacing. This would 

directly disturb approximately 217 acres (7.8 percent) of the 2,786 acres of non-WSA lands with wilderness 

characteristics within the GNBPA but outside the BLM White River natural area. Wilderness characteristics 

(naturalness, solitude, and primitive recreation opportunities) would be foregone on that acreage due to the 

surface disturbance and ongoing activities associated with development under this alternative. The indirect 

impact of this disturbance would be the loss of naturalness and the degradation of solitude and primitive 

recreation opportunities on portions of the White River non-WSA lands with wilderness characteristics, 

depending upon the location and distribution of the lands actually disturbed under this alternative. 

Impacts to wilderness characteristics would continue throughout the life of the project until final reclamation is 

complete. Until such time, the anticipated development under the Proposed Action Alternative would cause the 

loss of naturalness and degradation of solitude and primitive recreation opportunities on portions of the 

non-WSA lands with wilderness characteristics within the GNBPA. 

4.14.2.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Proposed Action Alternative. 

4.14.2.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for this 

alternative. 

4.14.3 Resource Protection Alternative 

The Resource Protection Alternative would be similar to the Proposed Action Alternative except that there 

would be a limit to the maximum number of new well pad locations of 1 pad per 40 acres (maximum of 16 well 

pads per section). Under this alternative, 3,675 new wellbores would be drilled at a rate of 358 wells per year 

over a 10-year timeframe, including construction of associated infrastructure (e.g., compressor stations, 

gathering pipelines, access roads). Construction of the proposed wells, pipelines, access roads, and ancillary 

facilities under the Resource Protection Alternative would disturb approximately 8,147 acres. This represents 

approximately 5.0 percent of the GNBPA. 

4.14.3.1 Impacts to Wilderness Characteristics 

BLM White River Natural Area

Under the Resource Protection Alternative, no surface disturbance would occur within the BLM White River 

natural area because the BLM manages this area under a NSO stipulation. For this reason, the wilderness 

characteristics of the area would continue to be protected, preserved, and maintained as specified in the 

Vernal RMP (BLM 2008b). 

Non-WSA Lands with Wilderness Characteristics

Well pad development under the Resource Protection Alternative would occur at 40-acre surface spacing. This 

would directly disturb approximately 139 acres (5.0 percent) of the 2,786 acres of non-WSA lands with 

wilderness characteristics within the GNBPA but outside the BLM White River natural area. Wilderness 

characteristics (naturalness, solitude, and primitive recreation opportunities) would be foregone on this 

acreage due to the surface disturbance and ongoing activities associated with development under this 

alternative. The indirect impact of this disturbance would be the loss of naturalness and the degradation of 

DEIS 4-132 July 2010
solitude and primitive recreation opportunities on portions of the White River non-WSA lands with wilderness 

characteristics, depending on the location and distribution of the lands actually disturbed under this alternative. 

Impacts to wilderness characteristics would continue throughout the life of the project until final reclamation is 

complete. Until such time, the anticipated development under the Resource Protection Alternative would cause 

the loss of naturalness and degradation of solitude and primitive recreation opportunities on portions of the 

non-WSA lands with wilderness characteristics within the GNBPA. 

4.14.3.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Resource Protection Alternative. 

4.14.3.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for this 

alternative. 

4.14.4 Optimal Recovery Alternative 

Under the Optimal Recovery Alternative, operators would drill 13,446 wellbores at a rate of 672 wells per year 

over a 20-year timeframe, including construction of associated infrastructure (e.g., compressor stations, 

gathering pipelines, access roads). This alternative is designed to maximize recovery of the gas resource by 

increasing the number of wellbores to achieve 10-acre surface and downhole spacing throughout the GNBPA. 

Construction of the proposed wells, pipelines, access roads, and ancillary facilities under the Optimal 

Recovery Alternative would disturb approximately 42,620 acres. This represents approximately 26 percent of 

the GNBPA. 

4.14.4.1 Impacts to Wilderness Characteristics 

BLM White River Natural Area

Under the Optimal Recovery Alternative, no surface disturbance would occur within the BLM White River 

natural area because the BLM manages this area under a NSO stipulation. For this reason, the wilderness 

characteristics of the area would continue to be protected, preserved, and maintained as specified in the 

Vernal RMP (BLM 2008b). 

Non-WSA Lands with Wilderness Characteristics

Under the Optimal Alternative, well pad development would occur on 10-acre surface spacing. This would 

directly disturb 724 acres (26 percent) of the 2,786 acres of non-WSA lands with wilderness characteristics 

within the GNBPA but outside the BLM White River natural area. Wilderness characteristics (naturalness, 

solitude, and primitive recreation opportunities) would be foregone on this acreage due to the surface 

disturbance and ongoing activities associated with this alternative. The indirect impact of this disturbance likely 

would be the loss of naturalness and the degradation of solitude and primitive recreation opportunities on the 

remainder of the White River non-WSA lands with wilderness characteristics within the GNBPA. 

Impacts to wilderness characteristics would continue throughout the life of the project until final reclamation is 

complete. Until such time, the anticipated development under the Optimal Recovery Alternative would cause 

the loss of naturalness and degradation of solitude and primitive recreation opportunities on all (2,786 acres) of 

the non-WSA lands with wilderness characteristics within the GNBPA. 

4.14.4.2 Mitigation and Mitigation Effectiveness 

No mitigation measures have been identified for the Optimal Recovery Alternative. 

DEIS 4-133 July 2010
4.14.4.3 Residual Impacts 

As there is no proposed mitigation, residual impacts would be the same as impacts previously identified for this 

alternative. 

4.14.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of Long-term Productivity 

Many of the aboveground facilities that potentially would impact short-term use of non-WSA lands with 

wilderness characteristics would be removed in the long term and the land reclaimed. 

4.14.6 Irreversible/Irretrievable Commitment of Resources 

There would be an irretrievable loss of wilderness characteristics on the White River non-WSA lands with 

wilderness characteristics on up to 2,786 acres for up to 150 years. When reclamation is successful, impacts 

on wilderness characteristics would be reversed. 

DEIS 4-134 July 2010
4.15 Wildlife and Fisheries Resources 

The primary issues related to wildlife, fisheries, and special status species include disruption of big game 

movements and cumulative loss of habitat, loss or alteration of native habitats, increased habitat 

fragmentation, animal displacement, direct loss of wildlife, and impacts associated with water management. In 

addition, primary issues related to special status species, especially greater sage-grouse would include 

impacts that could further lead to their decline and possible extirpation from the GNBPA. 

4.15.1 No Action Alternative 

Under the No Action Alternative, drilling and completion of development wells and infrastructure would 

continue under the authority and COAs of existing NEPA decision documents. Resource protection would be 

provided by mitigation under those previous NEPA documents, lease stipulations, and site-specific reviews. 

Including state and fee wells (i.e., non-NEPA disclosed actions), the BLM estimates that as of October 2007, 

a total of approximately 1,102 wells remain to be drilled in the GNBPA. Development of the 1,102 new wells 

under the No Action Alternative would result in the long-term surface disturbance (at least 10 years for 

herbaceous-dominated plant communities and 25 to 50 years for shrub species) of approximately 4,702 acres. 

Habitat effects would continue until successful reclamation is completed and vegetation becomes 

re-established. 

The following text outlines requirements within several of the existing NEPA documents to minimize and 

mitigate for direct and indirect impacts to wildlife and fisheries resources. Mitigation for greater sage-grouse as 

stated in existing NEPA documents is presented in Section 4.15.1.1 under Special Status Wildlife Species 

Impacts. 

• Prior to any project-related surface disturbance, all locations proposed for surface disturbance would 

be examined by a wildlife biologist and botanist approved by the applicable SMA to determine if any 

federally threatened or endangered species are present. If present and prior to initiating any surface 

disturbance activities, the SMA and the USFWS would implement appropriate avoidance measures. 

• Prior to any construction between January 1 and August 31, all precipitous areas and treed areas 

within 0.5 mile of proposed construction sites would be surveyed for the presence of raptor nests. 

• If occupied raptor nests were found, construction, drilling, and completion would not occur within 

species-specific buffer radii during the species-specific active nesting season, unless topographic or 

vegetative characteristics obscured visual and auditory impacts from the nest. If surveys identify raptor 

nests in the GNBPA, species-specific buffer radii and timing restrictions would be applied as directed 

by the AO. No permanent facilities would be constructed within 0.25 mile of the nest site. 

• Reserve pits would be netted, where deemed necessary and appropriate, to reduce the potential for 

access by migratory birds and other wildlife species. 

• Where feasible, well pads, access roads, pipelines, and other facilities or infrastructure would be 

located so as to conceal them from raptor nests by considering topographical or vegetative screening 

features. 

• As necessary in areas having high bird concentrations, operators would adhere to Gold Book 

guidance for the protection of migratory bird species by installing nets and/or flags over reserve pits. 

• For the Chapita Wells-Stagecoach Area EIS, EOG committed to conduct interim and final reclamation 

for surface disturbances and to follow many SOPs commonly used for natural gas development 

projects within the Uinta Basin (BLM 2008d). 

• A closed loop reserve system and leak detection or self-contained mud system would be installed in 

drainages, areas of shallow groundwater, and/or floodplains. 

DEIS 4-135 July 2010
4.15.1.1 Impacts to Terrestrial Wildlife 

Impacts to wildlife resources under the No Action Alternative include surface disturbance or alteration of native 

habitats, increased habitat fragmentation, animal displacement, changes in species composition, and direct 

loss of wildlife. The severity of these effects on terrestrial wildlife species depend on factors such as the 

sensitivity of the species, seasonal use patterns, type and timing of project activity, and physical parameters 

(e.g., topography, cover, forage, climate). 

Species Effects

Game Species. Potential direct impacts to big game species (e.g., mule deer, pronghorn, elk) from wellfield 

development include the incremental long-term surface disturbance of potential foraging habitat within the 

GNBPA (Table 4.15-1). Pronghorn are the most abundant big game species within the GNBPA; therefore, 

direct impacts to pronghorn would be more pronounced than direct impacts to mule deer and elk. Current 

declines of the pronghorn population in the project region appear to be related to habitat loss associated with 

extensive wellfield development activities and prolonged drought, which has limited the number of surviving 

fawns (BLM 2005; UDWR 2008b). Elsewhere, other natural factors also appear to influence pronghorn 

populations, most importantly winter conditions, availability and quality of forage, and availability of water. 

Competition with other herbivores, particularly sheep, cattle, and horses, also can influence pronghorn 

populations (BLM 2005). 

Table 4.15-1 Long-term Surface Disturbance of Big Game Habitat, No Action Alternative 

Species Habitat1

Total Habitat Within 

GNBPA (acres) 

Estimated Surface 

Disturbance (acres)2 

Pronghorn Year-long Crucial 132,109 3,813

Year-long Substantial 2,310 67

Mule deer Year-long Crucial 19,156 553 

Winter Substantial 2,352 68

Elk Winter Substantial 312 9

Rocky Mountain bighorn sheep Year-long Crucial 27,069 781 

Bison Year-long Crucial 117,993 3,046

1

 Habitat designated by UDWR. Elk and mule deer data taken from the Vernal RMP (BLM 2008b). 

2

 Due to the programmatic nature of this EIS, actual disturbance values were not available; therefore, a quantitative assessment was 

calculated as a percentage of habitat type within the GNBPA multiplied by the new surface disturbance for the No Action Alternative 

(4,702 acres). 

No direct impacts to Rocky Mountain bighorn sheep or bison would be expected due to the lack of animals 

present within the GNBPA. However, impacts to UDWR designated habitat may occur, which could potentially 

limit future reintroduction efforts within the GNBPA. 

Indirect impacts to big game species include increased habitat fragmentation effects as a result of increased 

noise levels and human presence, dispersal of noxious and invasive weed species, and dust effects from 

unpaved road traffic. These effects are discussed under Habitat Fragmentation. Given the conservative 

estimate that adjacent habitats are at, or near, carrying capacity, and the current drought conditions and 

human development activities in the project region, displacement of wildlife species (e.g., big game) from 

ongoing wellfield activities have resulted in an unquantifiable reduction in wildlife populations. 

Direct and indirect effects to small game species (i.e., upland game birds, waterfowl, small game mammals) 

under the No Action Alternative are the same as those discussed above for big game species. Direct impacts 

include the incremental long-term surface disturbance of wildlife habitat. Indirect impacts include increased 

DEIS 4-136 July 2010
noise and human presence, dispersion of noxious and invasive weed species, and dust effects from unpaved 

road traffic. These effects are discussed under Habitat Fragmentation. 

Non-game Species. Development of the 1,102 new wells under the No Action Alternative would result in 

direct impacts to non-game species, including the long-term disturbance of approximately 4,700 acres of 

habitat (excluding developed areas). It is assumed that habitat loss would result in direct losses of smaller, less 

mobile species (e.g., small mammals, reptiles, amphibians, invertebrates), nest or burrow abandonment, and 

loss of eggs or young as a result of crushing from vehicles and equipment at the time of wellfield development. 

Indirect impacts, including increased noise levels and human presence, dispersal of noxious weed species, 

and dust effects from unpaved road traffic, would continue during ongoing operations under this alternative. 

In the event that workover and maintenance activities were to occur during the breeding season for migratory 

passerine and songbird species (April 1 through July 31), potential impacts could result in the abandonment of 

a nest site or territory or the loss of eggs or young, resulting in the loss of productivity for the breeding season. 

Loss of an active nest site, incubating adults, eggs, or young would violate the MBTA and potentially could 

affect populations of important migratory bird species that may occur within the wellfield area (Appendix I). 

A number of breeding raptor species have been documented within the GNBPA. Prominent nesting raptors 

that have been documented within the GNBPA include golden eagle and red-tailed hawk. Other raptor species 

(e.g., prairie falcon, great-horned owl, burrowing owl) also occur within the GNBPA. Direct impacts to raptors 

as a result of the No Action Alternative include the long-term surface disturbance of approximately 4,700 acres 

of potential breeding and foraging habitat (excluding developed areas). The effects of ongoing wellfield 

operations under this alternative include indirect impacts such as increased noise levels and human presence, 

dispersal of noxious and invasive weed species, and dust effects from unpaved road traffic. All of these 

impacts contribute to an overall reduction in habitat quality for wildlife species. However, the degree of these 

potential impacts depends on a number of variables including the location of the nest site, the species’ relative 

sensitivity, breeding phenology, and possible topographic shielding. Indirect effects to wildlife species are 

discussed under Habitat Fragmentation. 

In addition, the effects of the current drought (and subsequent decline in the prey base) relative to the effects 

of human activity and well operations on raptor nesting in the wellfield cannot be distinguished until the prey 

base recovers. However, evidence of the sensitivity of these species to human activity and noise in the vicinity 

of active nest sites (USFWS 2002f) suggests a much lower likelihood of reoccupation relative to undeveloped 

habitats. Because the GNBPA currently is being developed, it is unlikely that other currently inactive nests 

would become active until project reclamation has been completed and vegetation communities have become 

re-established. However, future use of nest sites would be strongly influenced by quality of foraging and 

nesting habitat, and prey abundance as prey populations recover from prolonged drought and disease. 

No protection measures for breeding raptor species have been identified for workover and maintenance 

activities under the No Action Alternative. Consequently, if these activities were to occur during the raptor 

breeding season (January 1 through August 31), impacts would include the abandonment of a nest site or 

territory or the loss of eggs or young, resulting in the loss of productivity for the breeding season. These losses 

would violate the MBTA. 

Other impacts to raptors in the area could occur as a result of electrical powerlines associated with wellfield 

operations. These impacts include an increase in the collision and electrocution hazards for migrating and 

foraging raptors. However, ROW grants issued by the BLM require that the energy developer use raptor 

protection devices. These measures minimize potential collision and electrocution hazards to migrating and 

foraging raptors. 

Habitat Fragmentation

Considerable research has been conducted on the effects on wildlife populations of habitat fragmentation 

caused by a variety of human activities, including oil and gas development. Habitat fragmentation from oil and 

DEIS 4-137 July 2010
gas construction and operation has resulted in the direct loss of potential habitat from the development of 

roads, well pads, pipelines, and electrical powerlines under the No Action Alternative. Other fragmentation 

effects such as increased noise, elevated human presence, dispersal of noxious and invasive weed species, 

and dust deposition from unpaved road traffic would extend beyond the boundaries of the wellfield facilities. 

These effects result in overall changes in habitat quality, habitat loss, increased animal displacement, 

reductions in local wildlife populations, and changes in species composition. However, the severity of these 

effects on terrestrial wildlife depends on factors such as sensitivity of the species, seasonal use, type and 

timing of project activities, and physical parameters (e.g., topography, cover, forage, climate). The following 

section examines the effects to various groups of species relative to available literature. 

Qualification of Fragmentation Impacts

General Habitat. Roads alter the temperature, humidity, sunlight intensity, moisture content of surrounding 

soils, and vegetation composition (Vaillancourt 1995). As a result, vegetation adjacent to the roads is dissimilar 

to surrounding vegetation, as measured by species composition, abundance, dust, and amount of bare soil 

and litter. Baker and Dillon (2000) summarized the effects on vegetation at a variety of sites and concluded the 

average depth-of-edge for vegetation effects was 200 feet (60 meters). Gelbard and Belnap (2003) showed 

that desert shrub communities located near maintained gravel and paved roads contained a large amount of 

exotic species, while plant communities near primitive, two-track roads were less disrupted compared to 

surrounding native vegetation. Within the GNBPA, unpaved roads have been constructed and are maintained. 

Based on the literature (Gelbard and Belnap 2003; Baker and Dillon 2000), vegetation community composition 

would be expected to be altered for approximately 165 to 200 feet (50 to 60 meters) away from the roadsides, 

despite reclamation with native seed mixtures. 

Big Game. Displacement of big game, as a result of direct habitat loss and indirect reduction in habitat quality, 

has been widely documented (Irwin and Peek 1983; Lyon 1983, 1979; Rost and Bailey 1979; Ward 1976). Big 

game species tend to move away from areas of human activity and roads, reducing habitat utilization near the 

disturbance areas (Cole et al. 1997; Sawyer et al. 2006). Displacement distances are strongly influenced by 

the level and timing of human activity, topography, and the presence of vegetation (Cole et al. 1997; Lyon 

1979), presumably due to noise attenuation and visual cover. Displacement of big game is greatest for heavily 

traveled secondary and dirt roads. Most research has focused on displacement distances for elk and deer. 

Displacement distances indicate the distance from the road’s centerline where animal densities are less than 

in surrounding areas (i.e., under-utilized habitat). In most circumstances, elk were not observed to habituate to 

human activities. Deer and pronghorn appear to be more tolerant of human activities than elk. For deer, 

displacement distances ranged from 330 feet to 0.6 mile (100 to 1,000 meters), depending on the presence of 

vegetative cover (Ward 1976). For evaluation purposes, 660 feet (200 meters) was the most common 

displacement distance used for deer, especially in areas with minimal vegetative cover. Deer and pronghorn 

have been observed to habituate to vehicles and displacement distances decreased when traffic was 

predictable, moving at constant speeds, and was not associated with out-of-vehicle activities (Ward 1976). 

However, traffic within the GNBPA is characterized by slow moving traffic, vehicles that stop, and out of 

vehicle activity, thus, acclimation by big game is not anticipated. In addition, big game may experience 

increased mortality rates due to increased public access (Cole et al. 1997). Vehicular traffic may injure or kill 

individuals, and local populations may experience higher levels of hunting and poaching pressure due to 

improved public access (Cole et al. 1997). 

Upland Game Birds. Fragmentation effects on upland game birds have been shown to negatively impact 

populations. Chukar, mourning dove, and wild turkey may experience increased mortality rates due to 

increased public access (Holbrook and Vaughan 1985). Vehicular traffic may injure or kill individuals, and local 

populations may experience higher levels of hunting and poaching pressure due to improved public access 

(Holbrook and Vaughan 1985). However, these species are relatively tolerant of human activity and are likely 

to occupy suitable habitat in reasonably close proximity to roads and well pads. Fragmentation impacts to 

greater sage-grouse are discussed under Special Status Wildlife Species Impacts. 

DEIS 4-138 July 2010
Raptors. Fragmentation effects for raptor species can result in the loss or alteration in habitat, reduction in 

prey base, and increased human disturbance. The loss of native habitat to human development has resulted in 

declines of hawks and eagles throughout the West (Boeker and Ray 1971; Schmutz 1984). In some cases, 

habitat changes have not reduced numbers of raptors but have resulted in shifts in species composition 

(Harlow and Bloom 1987). Impacts to small mammal populations due to habitat loss and fragmentation can 

result in a reduced prey base for raptors, resulting in lower raptor densities. Thompson et al. (1982) and 

Woffinden and Murphy (1989) found that golden eagles and ferruginous hawks had lowered nesting success 

where native vegetation had been lost and was unable to support jackrabbit (prey) populations. Furthermore, 

the increased road network associated with the project would lead to greater public access. As a result, raptors 

may be disturbed from nests and roosts, thereby leading to displacement and reduced nesting success 

(Holmes et al. 1993; Postovit and Postovit 1987; Stalmaster and Newman 1978). Noise levels and human 

activity also can preclude otherwise acceptable raptor habitat from use (USFWS 2002f). As with big game, 

vehicles that stop cause greater levels of disturbance to raptors than continuously moving vehicles (Holmes et 

al. 1993; White and Thurow 1985). 

Other Non-game Birds. Effects of high levels of daily traffic (less than 10,000 vehicles per day) on bird 

densities located near paved roads is well documented (Reijnen et al. 1997, 1996, 1995; Reijnen and 

Foppen 1995). These studies showed a reduction in bird densities from approximately 130 to 9,200 feet (40 to 

2,800 meters) in forested habitats and approximately 70 to 11,600 feet (20 to 3,500 meters) in grassland 

habitats, depending on species and traffic volume (LaGory et al. 2001; Reijnen et al. 1997). In grassland 

habitats, Reijnen et al. (1996) determined that densities were reduced at distances ranging from approximately 

70 to 5,600 feet (20 to 1,700 meters) along paved roads that received 5,000 vehicles per day on average. 

Seven of 12 species in this study showed a significant negative relationship in population density of more than 

10 percent reduction in bird density within 330 feet (100 meters) of the road (density reduction within 330 feet 

ranged from 12 to 56 percent). Only 2 of the 12 species showed any further reduction in density greater than 

330 feet (100 meters) from a road (Reijnen et al. 1996). Relative to the No Action oil and gas field 

development, a study in west-central Wyoming by Ingelfinger and Anderson (2004) on the effects of natural 

gas development on passerine birds within sagebrush-steppe habitat showed a 60 percent reduction in 

densities of sagebrush obligate species (Brewer's sparrow, sage sparrow, sage thrasher) that occur within 

330 feet (100 meters) of both paved and unpaved roads, while horned lark population densities increased 

slightly within the 330-foot area. Horned larks are grassland species that commonly are observed foraging for 

windblown seed along dirt roadways and other disturbance areas. The average daily traffic volume within the 

study area ranged from 11 and 444 vehicles per day (Ingelfinger and Anderson 2004). Overall, reductions in 

bird population densities from roads in both open grasslands and woodlands are attributed to a reduction in 

habitat quality produced by elevated noise levels (Reijnen et al. 1997, 1995). Although visual stimuli in open 

landscapes may add to density effects at relatively short distances, the effects of noise appear to be the most 

critical factor since breeding birds of open grasslands (threshold noise range of 43 to 60 decibels on the 

A-weighted scale [dBA]) and woodlands (threshold noise range of 36 to 58 dBA) respond very similarly to 

disturbance by traffic volume (Reijnen et al. 1997). Reijnen et al. (1996) determined a threshold effect for bird 

species to be 47 dBA, while a New Mexico study in a pinyon-juniper community found that effects of gas well 

compressor noise on bird populations were strongest in areas where noise levels were greater than 50 dBA. 

However, moderate noise levels (40 to 50 dBA) also showed some effect on bird densities in this study 

(LaGory et al. 2001). For this analysis, a threshold of 45 dBA is used to address impacts to wildlife species 

(e.g., non-game birds). 

Special Status Wildlife Species Impacts

The following impact assessments focus on special status wildlife species, which include those species 

federally listed as threatened, endangered, proposed and/or candidate, as well as BLM sensitive and State of 

Utah species of concern that potentially occur within the GNBPA. These species are identified in Section 3.15, 

Special Status Wildlife Species. 

Black-footed Ferret. Implementation of the No Action Alternative would result in impacts to white-tailed prairie 

dog colonies. Black-footed ferrets prey and feed almost exclusively on prairie dogs (Clark et al. 1988). The 

DEIS 4-139 July 2010
northeastern portion of the GNBPA is adjacent to the western boundary of the Coyote Basin Reintroduction 

Primary Management Zone (PMZ). The Coyote Basin population was reintroduced in eastern Utah and 

western Colorado in 1999, and is designated as a non-essential, experimental population; equivalent to 

“proposed” status for the purposes of Section 7 consultation under Section 10(j) of the Endangered Species 

Act (63 FR 52823, October 1, 1998). The GNBPA and surrounding areas are within the Northeastern Utah 

Experimental Population Sub-Area for black-footed ferrets, which includes all of Uintah and Duchesne 

counties. Black-footed ferrets recently have been observed outside of the PMZ with one unconfirmed 

observation within the GNBPA in Kennedy Wash and one credible observation on Tribal Land west of Fantasy 

Canyon (Maxfield 2009). 

Authorized development under the No Action Alternative may involve construction within white-tailed prairie 

dog colonies, which may reduce the extent of habitats or degrade the overall quality of black-footed ferret 

habitats. These habitats have the potential to support ferrets and may be important for future expansion of 

their territories. Direct impacts to ferrets from authorized activities under the No Action Alternative may include 

further fragmentation of prairie dog colonies within the GNBPA. Fragmentation limits the dispersal of individual 

prairie dogs and increases the density of individuals within each smaller colony (Johnson and Collinge 2004). 

Higher densities within colonies may lead to increased incidence of plague in both prairie dog and black-footed 

ferret populations. Plague outbreaks may lead to the direct loss of individuals or populations. Additional roads 

within the GNBPA and increased vehicle traffic may result in additional mortality of prey and possibly direct 

loss of individual ferrets. Ground disturbing activities also reduce available forage for prey species. 

Reclamation in the Uinta Basin is difficult and slow with a high likelihood for the introduction and spread of 

noxious weeds and invasive species. Invasive species may reduce the overall quality of forage for prairie dogs 

and ultimately may limit prairie dog populations and the expansion of occupied ferret habitats. However, 

impacts to prairie dog colonies outside of the PMZ, due to the small scattered colonies, have a low potential to 

result in direct loss of ferrets. Black-footed ferrets are dependent upon prairie dog colonies for their survival, 

and loss of prairie dog habitat within the GNBPA may indirectly impact black-footed ferrets. 

Fringed Myotis, Spotted Bat, Townsend Big-eared Bat. Sensitive bat species have not been documented 

within the GNBPA. One Townsend big-eared bat was collected from the Ouray National Wildlife Refuge near 

the GNBPA in 2005. Inventories for these species have not been conducted within the GNBPA and distribution 

information is limited within the GNBPA. Potentially suitable habitats are present and therefore, these species 

are likely to occur within the GNBPA. 

Authorized development under the No Action Alternative may result in direct impacts. The surface disturbance 

of pinyon-juniper woodlands, grasslands, riparian, and shrubland foraging habitats would occur as a result of 

the No Action Alternative. These impacts also are likely to include noise from construction activities, vehicle 

traffic, and increased human presence. Many bat species are easily disturbed by noise and human presence 

(Oliver 2000). These species are especially sensitive to disturbance during roosting, maternity, and parturition. 

Abandonment of roost sites may occur due to increased human presence and noise disturbance (Oliver 2000). 

Roost sites typically are associated with rugged rocky terrain, cliff and crevice habitats, and abandoned mines 

or buildings. Cliff and crevice habitats are typically not disturbed by construction; however, development in the 

vicinity of these habitats is likely. Other common impacts from construction and development activities that 

may affect sensitive bat species and other wildlife species are discussed under Habitat Fragmentation. 

White-tailed Prairie Dog. Implementation of the No Action Alternative would result in 4,258 acres of 

disturbance to occupied and potential white-tailed prairie dog habitat (salt-desert shrubland, sagebrush 

shrubland, grassland, agriculture, and barren) within the GNBPA. Authorized developments are likely to 

include construction of well pads, roads, facilities, and pipelines. These activities would be placed outside of 

prairie dog colonies where possible. Due to the scattered distribution of the species, avoidance of all burrows 

is often impractical. As a result, direct mortality of individuals likely would occur from increased vehicular traffic 

in and near colonies. 

DEIS 4-140 July 2010
Additional impacts to white-tailed prairie dogs are likely to occur due to difficulties with reclamation in the Uinta 

Basin. Construction activities have the potential to introduce and spread noxious weeds and invasive species. 

Invasive species may reduce the overall quality of forage for prairie dogs and ultimately may limit prairie dog 

populations. Other common impacts from construction and development activities that may affect white-tailed 

prairie dogs and other wildlife species are discussed under Habitat Fragmentation. 

Bald Eagle. No bald eagles nests have been documented within the GNBPA. Potentially suitable habitats for 

nesting, roosting, and foraging are present within the GNBPA, and the species is frequently observed along 

the Green River and occasionally the White River during the winter. Winter roosts have been documented 

within 0.5 mile of the GNBPA within the riparian corridor along the Green and White rivers. Authorized 

development under the No Action Alternative is anticipated to be very low within suitable bald eagle nesting 

and roosting habitats. Consequently, no direct impacts other than loss of foraging habitat are anticipated. Due 

to the minor authorized disturbance relative to available foraging habitat, impacts to bald eagles are 

anticipated to be minor. Other common impacts from construction and development activities that may affect 

bald eagles and other raptor species are discussed under Habitat Fragmentation (Raptors). 

Burrowing Owl. Direct impacts to burrowing owls as a result of the No Action Alternative include the loss of 

nesting and foraging habitat and the potential for disturbance to nesting locations. Burrowing owls utilize 

white-tailed prairie dog burrows for nesting sites and impacts to prairie dog colonies have a high potential to 

cause direct and indirect impacts to burrowing owls. Potential impacts to burrowing owls are likely to occur as 

a result of removal of prairie dog habitat. Other common impacts from construction and development activities 

that may affect burrowing owls and other raptor species are discussed under Habitat Fragmentation (Raptors). 

Ferruginous Hawk. No ferruginous hawk nests have been documented by UDWR within the GNBPA 

(Maxfield 2009), although suitable habitat is present throughout the GNBPA and ferruginous hawks are likely 

to utilize the GNBPA’s habitats for nesting and foraging. Potential impacts to ferruginous hawks and other 

raptor species are discussed under Habitat Fragmentation (Raptors). 

Short-eared Owl. No short-eared owl nests have been documented within the GNBPA. This species has 

been observed in Cottonwood Wash and likely nests within the GNBPA. Potential impacts to short-eared owls 

and other raptor species are discussed under Habitat Fragmentation (Raptors). 

Grasshopper Sparrow. No grasshopper sparrows have been documented in the GNBPA (BLM 2008c), 

although suitable habitat is present throughout the Uinta Basin and the GNBPA. Authorized developments 

under the No Action Alternative likely will result in direct impacts to the species such as potential habitat loss or 

potential death of individuals. 

Additional indirect impacts to grasshopper sparrows are likely to occur due to difficulties with reclamation in the 

Uinta Basin. Construction activities have the potential to introduce and spread noxious weeds and invasive 

species. Invasive species may reduce the overall quality of potential habitat. Other common impacts from 

construction and development activities that may affect grasshopper sparrows and other wildlife species are 

discussed under Habitat Fragmentation. Activities authorized under the No Action Alternative are likely to 

impact the grasshopper sparrow; however, due to the limited available habitat and lack of documented 

occurrences, these impacts are anticipated to be minor. 

Greater Sage-grouse. Due to the current level of development under the No Action Alternative and ongoing 

drought within the Uinta Basin, it is assumed that habitat conditions for greater sage-grouse within the GNBPA 

are not ideal. Therefore, impacts to the East Bench population under the No Action Alternative may lead to the 

further decline of the population. As presented in Section 3.15, Wildlife and Fisheries Resources, the Vernal 

RMP (BLM 2008b) requires a 0.25-mile NSO around active leks and a 2-mile timing restriction buffer around 

active leks during the breeding season (March 1 to June 15) to protect greater sage-grouse leks from surface 

disturbance. In addition, the following text outlines several requirements stated in existing NEPA documents to 

minimize and mitigate for direct and indirect impacts to greater sage-grouse under the No Action Alternative. 

DEIS 4-141 July 2010
• In order to protect greater sage-grouse and their habitat, prior to any construction between March 15 

and May 15, all sagebrush habitats within a 2-mile radius of proposed construction sites would be 

surveyed for the presence of greater sage-grouse leks. If leks were located, surface disturbance 

would not occur within a 2-mile radii buffer during the breeding/nesting season (March 15 to May 15). 

• “Squat” tanks (low-profile tanks) would be installed on locations within the identified 2-mile buffer of 

greater sage-grouse leks to reduce the visibility of perching predators (raptors). 

• All proposed well locations within sagebrush habitat would be surveyed for leks/nesting areas from 

March 15 to June 30. 

• No permanent facilities would be allowed within 1,000 feet of a new or known lek/nesting area. 

For greater sage-grouse in Utah, UDWR has designated three habitat categories (nesting, brooding, and 

winter) based on vegetation type, height, and composition. Table 4.15-2 presents the total estimated acres of 

long-term surface disturbance to greater sage-grouse habitat within the GNBPA under the No Action 

Alternative. 

Table 4.15-2 Long-term Surface Disturbance of Greater Sage-grouse Habitat, No Action Alternative 

1 Lek Buffer/Habitat Type

Total Habitat Within GNBPA 

(acres) 

Estimated Surface Disturbance 

(acres)2

0.25 Mile Lek Buffer (NSO) 491 14 

2.0 Mile Lek Buffer 15,318 442 

Nesting Habitat 23,380 675 

Brooding Habitat 61,744 1,782 

Winter Habitat 46,969 1,350 

1 Lek buffers taken from the Vernal RMP (BLM 2008b). Habitat types provided by UDWR. 

2 Due to the programmatic nature of this EIS, actual disturbance values were not available; therefore, a quantitative assessment was 

calculated as a percentage of each lek buffer/habitat within the GNBPA multiplied by the new surface disturbance for the No Action 

Alternative (4,702 acres). 

Direct impacts to greater sage-grouse include the incremental long-term surface disturbance near lek sites and 

to nesting, brooding, and wintering habitats. Indirect impacts to greater sage-grouse include increased habitat 

fragmentation effects as a result of increased noise levels and human presence, dispersal of noxious weeds 

and invasive plant species, and dust effects from unpaved road traffic. Additional indirect impacts include 

increased collision potential associated with powerlines and vehicle traffic as well as increased predation by 

raptors, corvids, and coyotes. 

Recent studies on greater sage-grouse have shown that oil and gas development can negatively impact 

populations as a result of increased noise and increased human disturbance (Walker et al. 2007; 

Holloran 2005). Greater sage-grouse have been observed to abandon lek sites in areas with increased road 

development (Walker et al. 2007; Holloran 2005; Braun 1986). Brooding female greater sage-grouse in 

Canada were shown to avoid areas with increased levels of visible oil wells, and chick survival decreased as 

oil well densities within 0.6 miles (1 km) of brooding locations increased (Aldridge 2005). In western Wyoming, 

brooding female greater sage-grouse avoided producing gas wells during the early brood-rearing period 

(Holloran 2005).Compared to hens near undisturbed leks, greater sage-grouse hens that used leks within 

approximately 2 miles of oil and gas development moved further away from leks to nesting areas and had 

lower nest initiation rates (Lyon and Anderson 2003). Connelly et al. (2000) recommends that energy-related 

facilities be located more than 2 miles (3.2 km) from active lek sites under ideal habitat conditions, 3 miles 

(5 km) when habitat conditions are not ideal, and 11 miles (18 km) when sage-grouse populations are 

migratory. Furthermore, greater sage-grouse hens that utilized nesting habitats further from roads had greater 

brood survivorship than those hens utilizing habitat near roads (Lyon and Anderson 2003). Recent research in 

DEIS 4-142 July 2010
Wyoming has shown that greater sage-grouse also may be negatively influenced within or near winter habitats 

by coal-bed natural gas development. Doherty et al. (2008) found that hens avoided wintering areas with 

coal-bed natural gas development, and were 30 percent less likely to use an area with coal-bed natural gas 

development even if it contained suitable habitat. Research also has shown that, as a result of increased food 

sources associated within oil and gas developments (e.g., road kill, litter, etc.), population levels of predators, 

especially corvids, generally increases over time unless deterrents are used on gas field-related structures 

(Andren 1992; Avery and Genchi 2004). 

As presented in Section 3.15, Wildlife and Fisheries Resources, greater sage-grouse have the lowest 

reproduction potential of any upland game bird species. Therefore, increased predation, especially during the 

nesting/brooding season, may dramatically influence populations over time. This impact is magnified due to 

the already low population level of greater sage-grouse in the East Bench population. Implementation of the 

requirements stated in the existing NEPA documents to minimize and mitigate impacts to greater sage-grouse 

under the No Action Alternative generally would not be sufficient to protect the East Bench population. Greater 

sage-grouse habitat within the GNBPA has been identified as critical to the persistence of this population, 

especially in the East Bench and Middle Bench areas (Maxfield 2009). The population of greater sage-grouse 

in the East Bench and Middle Bench areas (estimated 50 to 60 individuals) has experienced a drastic decline 

over the last 10 years and currently is at the lowest population level recorded in over 25 years (Maxfield 2009). 

Further development under the No Action Alternative is likely to have population level impacts and may 

contribute to the further decline of the East Bench population of greater sage-grouse. 

Lewis’ Woodpecker. Direct impacts to the Lewis’ woodpecker may occur as a result of the No Action 

Alternative. Construction activities in forested riparian habitats during the nesting season have the potential to 

cause direct mortality, loss of nests, and disturbance to nesting birds. Potential indirect impacts to Lewis’ 

woodpecker would be similar to those discussed under Other Non-game Birds. 

Long-billed Curlew. Direct impacts to the long-billed curlew may occur as a result of the No Action 

Alternative. Construction activities in grassland habitats during nesting season have the potential to cause 

direct mortality, loss of nests, and disturbance to nesting birds. Potential indirect impacts to long-billed curlew 

would be similar to those discussed under Other Non-game Birds. 

Western Yellow-billed Cuckoo. Direct impacts to the western yellow-billed cuckoo may occur as a result of 

the No Action Alternative. Potential indirect impacts would be similar to those discussed under Other Nongame Birds. Construction activities in forested riparian habitats during nesting season have the potential to 

cause direct mortality, loss of nests, and disturbance to nesting birds. Potential indirect impacts to this species 

would be similar to those discussed under Other Non-game Birds. 

Corn Snake and Smooth Greensnake. Direct impacts associated with the No Action Alternative may result in 

the direct loss of individual snakes. These species are known to occur within the GNBPA and suitable habitats 

are present. Potential indirect impacts to these species are outlined under Non-game Species. 

4.15.1.2 Impacts to Fisheries Resources 

Under the No Action Alternative, potential impacts to fisheries resources include erosion and sedimentation 

from existing surface disturbance, water depletion of the Green and White rivers from previously authorized oil 

and gas activities and other land uses, and the potential for a leak or spill of contaminants from facilities or 

activities within these watersheds. 

Erosion and sedimentation may impact aquatic habitats by increasing sediment load. Increase of fine inorganic 

sediment in rivers and streams may impact fish spawning, fish rearing, and feeding behavior (USEPA 2003). 

Sediment deposition may bury and suffocate fish eggs and larvae affecting spawning and rearing while 

reduced visibility created by sediment load may inhibit the ability of fish to see prey impacting feeding behavior 

(USEPA 2003). Physiological impacts such as gill clogging and the ingestion of large quantities of sediment 

cause illness, reduced growth, and eventual death (USEPA 2003). Due to existing surface disturbance, 

DEIS 4-143 July 2010
ongoing projects, and poor reclamation success of previously disturbed areas, increased erosion and 

subsequent sediment yield are likely to occur within these watersheds. 

Water depletion also may affect aquatic habitats and fisheries resources within these watersheds. Water 

requirements for drilling, hydrostatic testing, dust abatement, and other project activities would be acquired 

from permitted sources. These sources may include direct withdrawals from the Green and White rivers, 

municipal sources, and local supply wells. Existing authorized water usage would directly and indirectly 

consume water from the Green and White rivers and ultimately cause reductions in flow within the Colorado 

River Basin. Under the No Action Alternative, water depletions are anticipated to be approximately 

2,270 acre-feet over the next 5 to 6 years until these projects are complete. Many fish species are sensitive to 

water depletions and a reduction in surface flow (USFWS 2002b,c,d,e). 

Activities within or adjacent to the 100-year floodplains of the Green and White rivers or within drainages 

leading to these rivers may increase the potential for a release of contaminants into these drainages. Leaks or 

spills of contaminants may lead to habitat degradation and mortality of fish. 

Special Status Fish Species Impacts

Colorado River Endangered Fish. The Colorado River endangered fish species (i.e., Colorado pikeminnow, 

razorback sucker, humpback chub, and bonytail) are affected by activities that deplete or degrade the flow of 

downstream waters of the Upper Colorado River Basin. 

The portions of the Green and White rivers that occur within the GNBPA provide habitat elements required by 

the Colorado River endangered fish. Direct impacts to these species include the erosion and sedimentation 

associated with nearby surface disturbance, the potential for spills or release of contaminants, entrainment in 

pumping equipment (i.e., pumps, hoses, etc.), and consumptive water use. In addition, the increased potential 

for release of natural gas condensate, hydrocarbons, or other toxic substances into the Green or White rivers 

or into tributary streams or drainages may cause direct mortality of individuals. Construction activities in 

proximity to these aquatic resources authorized under the No Action Alternative require special construction 

practices and spill prevention measures for projects that have the potential to impact the Green and White 

rivers. Therefore, the potential for direct and indirect impacts to sensitive fish species are reduced. Adverse 

impacts to sensitive fish species as a result of the No Action Alternative are anticipated to be minor. 

Under the No Action Alternative, water would be obtained for drilling, hydrostatic testing, and dust abatement 

from permitted sources. The permitted water sources include the Green and White rivers, local water supply 

wells, or municipal sources through existing approved permits. Water depletions (approximately 

2,270 acre-feet over the next 5 to 6 years until these project are complete) from the Upper Colorado River 

Basin are considered an adverse effect to the Colorado River endangered fish. 

The Recovery and Implementation Program (RIP) for endangered fish species in the Upper Colorado River 

Basin was established in 1988 to mitigate for water depletion impacts to these endangered fish species. Under 

the RIP, any water depletions from tributary waters within the Colorado River drainage are considered to 

jeopardize the continued existence of these fish species. To ensure the survival and recovery of listed fish 

species, any single incremental withdrawal of 100 acre-feet (annual average) or more would require the water 

user to make a payment to the USFWS Upper Colorado River Endangered Fish Recovery Program. 

Bluehead Sucker, Flannelmouth Sucker, and Roundtail Chub. Direct impacts to the bluehead sucker, 

flannelmouth sucker, and roundtail chub may occur as a result of the No Action Alternative. Potential direct 

impacts to these species are limited to the depletion of water within the Upper Colorado River Basin and the 

increased potential for release of natural gas condensate, hydrocarbons, or other toxic substances. Releases 

of toxic substances into the Green or White rivers or into tributary streams or drainages may cause direct 

mortality of individuals. Indirect impacts to the species may include an increase in sediment loading due to 

increased erosion. Indirect impacts may reduce the quality of habitat and may reduce the ability of habitats to 

support populations. 

DEIS 4-144 July 2010
Construction activities in proximity to aquatic resources authorized under the No Action Alternative require 

special construction practices and spill prevention measures for projects that have the potential to impact the 

Green and White rivers. Therefore, the potential for direct and indirect impacts to sensitive fish species are 

reduced. Adverse impacts to sensitive fish species as a result of the No Action Alternative are anticipated to be 

minor. 

4.15.2 Proposed Action Alternative 

Under the Proposed Action Alternative, KMG proposes to construct and operate 3,675 wells at a rate of 

358 wells per year over a 10-year timeframe, including associated infrastructures (e.g., compressor stations, 

gathering pipelines, access roads). KMG would implement development using environmental protection 

measures consistent with the ACEPMs (Appendix A) and the Reclamation Plan (Appendix E). 

4.15.2.1 Impacts to Terrestrial Wildlife 

As discussed for the No Action Alternative, impacts to wildlife resources under the Proposed Action would 

include the surface disturbance or alteration of native habitats, increased habitat fragmentation, animal 

displacement, changes in species composition, and direct loss of wildlife. The severity of these effects on 

terrestrial wildlife would depend on factors such as the sensitivity of the species, seasonal use patterns, type 

and timing of project activity, and physical parameters (e.g., topography, cover, forage, and climate). Assuming 

a maximum development of 3,675 wells, this alternative would result in the long-term surface disturbance (at 

least 10 years for herbaceous-dominated plant communities and 25 to 50 years for shrub species) of 

approximately 12,652 acres of potential wildlife habitat (excluding developed areas; Table 4.11-2) until 

successful reclamation is completed and vegetation becomes re-established. New habitat disturbance from 

well drilling would occur incrementally throughout the GNBPA over a 10-year period. 

Under the Proposed Action, fragmentation effects would result from the long-term surface disturbance of 

approximately 12,652 acres of wildlife habitat. Indirect effects from human presence, dispersal of noxious and 

invasive weeds, and dust effects from unpaved road traffic would further reduce habitat quality and utilization 

in the GNBPA. In addition, it is anticipated that noise generated by drilling activities exceeds 45 dBA (a general 

threshold for wildlife avoidance) within 1,175 feet of drill pads under the Proposed Action Alternative. 

Collectively, these effects would result in overall changes in habitat quality, habitat loss, increased animal 

displacement, reductions in local wildlife populations, and changes in species composition until the economic 

life of the project is complete and native vegetation has become re-established. However, the severity of these 

effects on terrestrial wildlife would depend on factors such as sensitivity of the species, seasonal use, type and 

timing of project activities, and physical parameters (e.g., topography, cover, forage, climate). 

Species Effects

Game Species. Potential direct impacts to big game species (e.g., mule deer, pronghorn, elk) from wellfield 

development include the incremental long-term surface disturbance of potential foraging habitat within the 

GNBPA (Table 4.15-3). As discussed under the No Action Alternative, pronghorn populations within the 

GNBPA have declined in recent years due to habitat loss and fragmentation associated with field development 

and prolonged drought. Therefore, further development activities under the Proposed Action would contribute 

to the decline of pronghorn within the GNBPA as habitat loss and fragmentation impacts would increase. At 

this level of development (20-acre surface spacing of well pads), pronghorn likely would move to areas of less 

development and may abandon areas of low quality habitat (e.g., areas with low quality forage, invasive 

weeds, limited water sources, high human activity) within the GNBPA. No direct impacts to Rocky Mountain 

bighorn sheep or bison would be expected due to the lack of animals present within the GNBPA. However, 

impacts to UDWR designated habitat may occur, which could potentially limit future reintroduction efforts within 

the GNBPA. 

DEIS 4-145 July 2010
Table 4.15-3 Long-term Surface Disturbance of Big Game Habitat, Proposed Action 

Total Habitat Within Estimated Surface 

Species Habitat1 GNBPA (acres) Disturbance (acres)2

Pronghorn Year-long Crucial 132,109 10,264 

Year-long Substantial 2,310 179

Mule deer Year-long Crucial 19,156 1,488 

Winter Substantial 2,352 183 

Elk Winter Substantial 312 24

Rocky Mountain bighorn sheep Year-long Crucial 27,069 2,103 

Bison Year-long Crucial 117,993 9,168

1

 Habitat designated by UDWR. Elk and mule deer data taken from the Vernal RMP (BLM 2008b). 

2

 Due to the programmatic nature of this EIS, actual disturbance values were not available; therefore, a quantitative assessment was 

calculated as a percentage of habitat type within the GNBPA multiplied by the proposed new surface disturbance for the Proposed Action 

Alternative (12,658 acres). 

Indirect impacts to big game species would include increased habitat fragmentation impacts as a result of 

increased noise levels and human presence, dispersal of noxious and invasive weed species, and dust effects 

from unpaved road traffic. Given the conservative estimate that adjacent habitats are at or near carrying 

capacity, and the current drought conditions and human development activities in the project region, 

displacement of wildlife species (e.g., big game) as a result of the proposed development would create some 

unquantifiable reduction in wildlife populations. Additional impacts to big game under the Proposed Action 

would include the potential loss of water sources and the abandonment of habitat improvement areas, such as 

areas with guzzlers installed or areas reseeded to enhance wildlife habitat. Development immediately adjacent 

to or within habitat improvement areas may deter big game species from utilizing these areas. 

Direct and indirect effects to small game species (i.e., upland game birds, waterfowl, small game mammals) 

within the GNBPA would be the same as discussed above for big game species. Impacts would result in the 

incremental long-term surface disturbance of approximately 12,652 acres of potential wildlife habitat, increased 

noise levels and human presence, dispersal of noxious and invasive weed species, and dust effects from 

unpaved road traffic. These effects are discussed under Habitat Fragmentation. 

Non-game Species. Direct impacts to non-game species from the development of 3,675 wells would result in 

the long-term surface disturbance (at least 10 years for herbaceous-dominated plant communities and 25 to 

50 years for shrub species) of approximately 12,652 acres of potential wildlife habitat (excluding developed 

areas) until successful reclamation is completed and vegetation becomes re-established. Impacts also could 

result in mortalities of less mobile species (e.g., small mammals, reptiles, amphibians, invertebrates), nest 

abandonment, and loss of eggs or young as a result of crushing from vehicles and equipment. Indirect impacts 

would include increased noise levels and human presence, dispersal of noxious weeds, and dust effects from 

unpaved road traffic. These effects are discussed below and under Habitat Fragmentation. Assuming that 

adjacent habitats are at or near carrying capacity, and given the current drought conditions and human 

development activities in the project region, displacement of wildlife species from the GNBPA would result in 

an unquantifiable reduction in wildlife populations. It is likely that certain species would not be able to persist 

within the GNBPA under the Proposed Action level of development. Species that require large tracts of 

unbroken habitat such as sagebrush obligate species may not be able to complete their life functions and 

populations would experience declines. Other species such as horned larks, corvids, deer mice, and some 

species of snakes may benefit from the level of development under the Proposed Action as more edges and 

habitat diversity would be created, increasing food and cover. 

Impacts to breeding migratory bird species could result in the abandonment of a nest site or territory, or the 

loss of eggs or young, if project activities were to occur during the breeding season (April 1 through July 31 for 

DEIS 4-146 July 2010
passerine species or January 1 through August 31 for raptor species). Loss of an active nest site, incubating 

adults, eggs, or young would violate the MBTA and, in the case of the golden eagle, would violate the Bald and 

Golden Eagle Protection Act. In addition, the actions described above would not be in compliance with 

EO 13186. Loss of an active nest site potentially could affect populations of important migratory bird species 

that may occur within the GNBPA (Appendix I). KMG has committed to installing bird exclusion devices that 

prevent the perching and entry of migratory birds on or into its new fired vessel exhaust stacks. KMG 

completed retrofitting approximately 1,014 existing stacks in 2007. 

As discussed for the No Action Alternative, a number of breeding raptor species have been documented within 

the GNBPA. Prominent nesting raptors that have been documented within the GNBPA include golden eagle 

and red-tailed hawk. Other raptor species (e.g., prairie falcon, great-horned owl, burrowing owl) also occur 

within the GNBPA. Potential direct impacts to raptors would result from the long-term surface disturbance of 

approximately 12,652 acres of potential breeding and foraging habitat (excluding developed areas). If present 

in or adjacent to the GNBPA, breeding raptors could abandon breeding territories, nest sites, or lose eggs or 

young as a result of project development and production activities. As discussed above, loss of an active nest 

site, incubating adults, eggs, or young would violate the MBTA and potentially could affect populations of 

important migratory bird species that may occur within the GNBPA. Development also would result in indirect 

impacts from habitat fragmentation effects such as increased noise levels and human presence, dispersal of 

noxious and invasive weed species, and dust effects from unpaved road traffic. However, the degree of these 

potential impacts would depend on a number of variables including the location of the nest site, the species’ 

relative sensitivity, breeding phenology, and possible topographic shielding. As discussed in Section 3.15, 

Wildlife and Fisheries Resources, a total of 110 raptor nest sites have been identified within the GNBPA. Direct 

and indirect impacts would result in a reduction in habitat suitability and overall carrying capacity for raptors in 

the GNBPA if wells were constructed within 0.5 mile of an active raptor nest (0.25 mile for prairie falcon, 

burrowing owl, great-horned owl, long-eared owl, and short-eared owl). 

Raptor nests would be identified and protected in accordance with KMG’s ACEPMs (Appendix A) and the 

BMPs for raptors and their associated habitats in Utah provided as an appendix to the Vernal RMP 

(BLM 2008b). Nest surveys would be conducted by a BLM or BLM-approved biologist within 0.5 mile of 

planned disturbance areas prior to surface disturbing activities. If a nest is found, the BLM would do activity 

status surveys during the breeding season. If an active (occupied) nest is discovered, no new construction or 

surface disturbing activities would occur within 0.25 or 0.5 mile, depending on the species. If an unoccupied 

nest is discovered, a survey would be conducted prior to surface disturbing activities to make sure the nest 

hasn’t become active between the time of discovery and construction. Surface-disturbing activities, occurring 

outside of the breeding season (seasonal buffer) but within the spatial buffer, would be allowed during a 

minimum 3-year nest monitoring period (BLM 2008b). The 3-year nest occupancy monitoring requirement 

should be viewed as a minimum time period during those years of optimal raptor nesting conditions. During 

sub-optimal raptor nesting years (when nesting habitat may be affected by drought, low prey base populations, 

fire, or other events), the monitoring standard should be increased to allow raptors the opportunity to re-occupy 

nesting sites when conditions are favorable. However, development of wellsites within 0.5 mile of occupied 

nests outside the breeding season, and development within 0.5 mile of inactive nests during the breeding 

season, likely would decrease the nest site’s suitability and potentially preclude use of the nest site because of 

increased activity and noise. Future use of nest sites would be strongly influenced by quality of foraging and 

nesting habitat, and prey abundance as prey populations recover from prolonged drought and disease. 

No protection measures for breeding raptors or other migratory bird species have been identified for workover 

and maintenance activities under the Proposed Action. Consequently, if these activities were to occur during 

the breeding season (January 1 through August 31 for raptors, April 1 through July 31 for migratory birds), 

impacts would include the abandonment of a nest site or territory or the loss of eggs or young. Bird losses 

would violate the MBTA and, in the case of the golden eagle, would violate the Bald and Golden Eagle 

Protection Act. In addition, the actions described above would not be in compliance with EO 13186. Loss of an 

active nest site potentially could affect raptor populations and important migratory bird species that may occur 

within the GNBPA (Appendix I). Potential impacts from the installation of electrical powerlines would be low, 

DEIS 4-147 July 2010
based on the ACEPMs (Appendix A) to use raptor proofing designs as outlined in Mitigating Bird Collision 

with Powerlines (Avian Power Line Interaction Committee [APLIC] 1994) and Suggested Practice for Raptor 

Protection on Powerlines (APLIC 2006). These measures would minimize the potential for powerline collisions 

and raptor electrocution. 

Habitat Fragmentation

Under the Proposed Action, fragmentation effects would result from the long-term surface disturbance of 

wildlife habitat. Indirect effects from human presence, dispersal of noxious and invasive weeds, and dust 

effects from unpaved road traffic would further reduce habitat quality and utilization in the GNBPA. In addition, 

it is anticipated that noise generated by drilling activities exceeds 45 dBA (a general threshold for wildlife 

avoidance) within 1,175 feet of drill pads under the Proposed Action Alternative. Collectively these effects 

would result in overall changes in habitat quality, habitat loss, increased animal displacement, reductions in 

local wildlife populations, and changes in species composition until the end of the economic life of the wellfield 

is reached and native vegetation has become re-established. However, the severity of these effects on 

terrestrial wildlife would depend on factors such as sensitivity of the species, seasonal use, type and timing of 

project activities, and physical parameters (e.g., topography, cover, forage, climate). 

Fragmentation impacts to wildlife habitat, big game, upland game birds, raptors, and other non-game species 

(including migratory birds) would be similar in nature to but greater in amount than those described under the 

No Action Alternative. This is due to an additional 7,729 acres of disturbance to wildlife habitat associated with 

the development (construction and operation) of 3,675 wells drilled from a maximum of 3,041 new well pads 

placed at up to 20-acre surface spacing within the GNBPA. Fragmentation impacts would be greater than 

under the No Action Alternative due to the additional 760 miles of access roads, resulting in the disturbance of 

4,147 acres of wildlife habitat. Other linear facilities (e.g., pipelines, powerlines, etc.) would account for an 

additional 1,414 miles (722 acres) of wildlife habitat disturbance, which would further increase fragmentation 

impacts. 

Special Status Wildlife Species Impacts 

Black-footed Ferret. In addition to potential impacts to the black-footed ferret associated with the No Action 

Alternative, additional impacts may be caused by implementation of the Proposed Action Alternative. Due to 

the potential rare occurrence of black-footed ferrets within the GNBPA, direct impacts are not anticipated. 

However, under the Proposed Action Alternative, additional impacts to white-tailed prairie dog colonies are 

likely to occur. These impacts may include disturbance to additional white-tailed prairie dog colonies due to the 

increased surface disturbance of 12,652 acres of wildlife habitat (excluding developed areas) associated with 

the Proposed Action Alternative. This may lead to indirect impacts to black-footed ferrets if white-tailed prairie 

dog populations decline as a result of the Proposed Action. These impacts are anticipated to be minor and 

localized and are not likely to affect the success of the reintroduction efforts or the re-establishment of the 

black-footed ferret within the Uinta Basin east of the GNBPA. 

Big Free-tailed Bat, Fringed Myotis, Spotted Bat, Townsend’s Big-eared Bat. In addition to the impacts 

associated with the No Action Alternative, the additional 12,652 acres of habitat disturbance (excluding 

developed areas) associated with the Proposed Action Alternative may increase direct impacts to sensitive bat 

species from noise from construction activities, vehicle traffic, and increased human presence. Additional 

surface disturbance in pinyon-juniper woodlands, grasslands, riparian, and shrubland foraging habitats would 

occur as a result of the Proposed Action Alternative. 

White-tailed Prairie Dog. In addition to the impacts associated with the No Action Alternative, an additional 

11,644 acres of disturbance to occupied and potential white-tailed prairie dog habitat (salt-desert shrubland, 

sagebrush shrubland, grassland, agriculture, and barren) associated with the Proposed Action Alternative 

would result in increased direct impacts to white-tailed prairie dog colonies. Increased direct mortality of 

individuals also would occur as a result of increased vehicular traffic in and near prairie dog colonies. In 

addition, indirect impacts similar to those identified under Non-game Species are likely to occur. 

DEIS 4-148 July 2010
Bald Eagle, Lewis’ Woodpecker, and Western Yellow-billed Cuckoo. Impacts to bald eagle, Lewis’ 

woodpecker, and western yellow-billed cuckoo under the Proposed Action Alternative would be identical to 

those outlined under the No Action Alternative, except for 12,652 acres of additional surface disturbance, 

including 189 acres of riparian habitat potentially impacted by the Proposed Action. In addition, indirect 

impacts similar to those identified under Non-game Species are likely to occur. 

Burrowing Owl. Due to KMG conducting raptor nest inventories prior to construction during nesting season, 

and the ACEPM to use the appropriate seasonal and spatial buffers in the USFWS Utah Field Office 2002 

guidelines for raptor protection, direct impacts to burrowing owls as a result of the Proposed Action Alternative 

would be avoided. However, additional surface disturbance may result in the loss of nesting and foraging 

habitat within white-tailed prairie dog colonies and the potential for disturbance to nesting locations. Indirect 

impacts from construction and development activities that may affect burrowing owls and other raptor species 

are discussed under Non-game Species and Habitat Fragmentation. 

Ferruginous Hawk. Potential impacts to ferruginous hawks and other raptor species are similar to those 

described under Non-game Species and Habitat Fragmentation. Due to KMG conducting raptor nest 

inventories prior to construction during nesting season and the ACEPM to use the appropriate seasonal and 

spatial buffers in the USFWS Utah Field Office 2002 guidelines for raptor protection, direct impacts to 

ferruginous hawks would be avoided. Increased surface disturbance within potential nesting and foraging 

habitat could indirectly impact the ferruginous hawk by disturbing foraging habitat and potential nest locations. 

Grasshopper Sparrow. In addition to impacts identified under the No Action Alternative, potential direct 

impacts to the grasshopper sparrow as a result of the Proposed Action would be similar in nature but 

expressed to a greater extent under the Proposed Action due to an additional 12,652 acres of habitat 

disturbance, including 1,246 acres of disturbance to grassland habitat. Indirect impacts to the species would 

be similar to those outlined above under Non-game Species. 

Greater Sage-grouse. As stated under the No Action Alternative, it is assumed that habitat conditions for 

greater sage-grouse within the GNBPA are not ideal, and therefore, impacts to the East Bench population may 

lead to the further decline of the population. Under the Proposed Action Alternative, the following protection 

measures from the Vernal RMP (BLM 2008b) would be implemented to mitigate and minimize impacts to 

greater sage-grouse: 

• No surface-disturbing activities would be allowed within 0.25 miles of active greater sage-grouse leks 

year round; 

• No permanent facilities or structures would be constructed within 2 miles of greater sage-grouse leks 

when possible; 

• No surface-disturbing activities would occur within 2 miles of active greater sage-grouse leks from 

March 1 through June 15; and 

• Within 0.5 mile of known active leks, the best available technology would be used to reduce noise 

(e.g., installation of multi-cylinder pumps, hospital sound-reducing mufflers, and placement of exhaust 

systems). 

Under the Proposed Action Alternative, up to 32 wells per section (20-acre surface spacing) is proposed for a 

maximum of 3,675 well bores within the GNBPA. Table 4.15-4 presents the long-term surface disturbance 

associated with the Proposed Action Alternative within greater sage-grouse habitat. 

DEIS 4-149 July 2010
Table 4.15-4 Long-term Surface Disturbance of Greater Sage-grouse Habitat, Proposed Action 

1 Lek Buffer/Habitat Type

Total Habitat Within GNBPA 

(acres) 

Estimated Surface Disturbance 

(acres)2

0.25 Mile Lek Buffer (NSO) 491 0 

2.0 Mile Lek Buffer 15,318 1,190 

Nesting Habitat 23,380 1,817 

Brooding Habitat 61,744 4,797 

Winter Habitat 46,969 3,649 

1 Lek buffers taken from the Vernal RMP (BLM 2008b). Habitat type provided by UDWR. 

2 Due to the programmatic nature of this EIS, actual disturbance values were not available; therefore, a quantitative assessment was 

calculated as a percentage of each lek buffer/habitat within the GNBPA multiplied by the proposed new surface disturbance for the 

Proposed Action Alternative (12,658 acres). 

Impacts under the Proposed Action Alternative would be similar in nature to the No Action Alternative, but 

magnified due to the increased number of well pads, miles of access roads, and miles of other linear facilities 

(e.g., powerlines, pipelines). Direct impacts to greater sage-grouse would include the incremental long-term 

surface disturbance near lek sites and to nesting, brooding, and wintering habitats. Based on the relatively 

high well density proposed under the Proposed Action, greater sage-grouse may abandon certain areas of the 

GNBPA due to loss and/or alteration of habitat as a result of field development activities. Indirect impacts to 

greater sage-grouse would include increased habitat fragmentation due to increased noise levels and human 

presence, dispersal of noxious weeds and invasive plant species, and dust effects from unpaved road traffic. 

Additional indirect impacts would include increased collision potential associated with powerlines and vehicle 

traffic, as well as increased predation by raptors, corvids, and coyotes. 

Similar to the No Action Alternative, implementation of the requirements within the Vernal RMP to minimize 

and mitigate impacts to greater sage-grouse under the Proposed Action Alternative generally would not be 

sufficient to protect the East Bench population, especially at the well densities proposed. As presented under 

the No Action Alternative, recent research (published since the release of the BLM Vernal RMP) has shown 

that measures such as those in the Vernal RMP are not sufficient to maintain greater sage-grouse populations, 

especially smaller, isolated populations. Adherence to the seasonal and spatial restrictions in the Vernal RMP 

would have minimal success, as these restrictions are more suitable for smaller field development projects. 

Therefore, implementation of the Proposed Action Alternative likely would have population level impacts and 

may contribute to the loss of the East Bench population of greater sage-grouse. 

Long-billed Curlew and Short-eared Owl. Impacts to the long-billed curlew and short-eared owl may occur 

as a result of the Proposed Action Alternative due to the additional surface disturbance of 12,652 acres, 

including 1,246 acres of grassland habitat. Indirect impacts would be similar to those discussed under Habitat 

Fragmentation. 

Corn Snake and Smooth Greensnake. In addition to impacts to the sensitive snake species associated with 

the No Action Alternative, additional surface disturbance associated with the Proposed Action Alternative may 

increase the potential for direct impacts including the loss of individuals. In addition, disturbance associated 

with the Proposed Action Alternative may increase impacts to these species by reducing available habitats, 

increasing fragmentation of habitats, and potentially reducing the ability of these habitats to support prey 

species. Potential indirect impacts common to all wildlife species are outlined under Impacts to Terrestrial 

Wildlife. 

4.15.2.2 Impacts to Fisheries Resources 

Impacts to fisheries resources under the Proposed Action Alternative would be similar to those previously 

discussed under the No Action Alternative. However, the Proposed Action would result in approximately 

DEIS 4-150 July 2010
12,658 acres of surface disturbance and may increase the potential for erosion and sedimentation above 

current levels. In addition, drilling and completion activities and other development activities associated with 

the Proposed Action would result in a total estimated consumption of approximately 7,571 acre-feet of water 

from the Colorado River Basin over the construction phase of the project or 757 acre-feet per year. Although 

authorized water usage would come from commercial sources such as water services, power plants, and 

supply wells, consumptive water uses ultimately deplete the flow within the Colorado River Basin. 

Due to the increase in surface disturbance associated with the Proposed Action, there is an increased 

likelihood of additional sediment yield. KMG would adhere to the Storm Water Management Plan prepared for 

this project to minimize the potential effects of erosion and sedimentation. Furthermore, KMG proposes 

ACEPMs to reduce erosion. These measures include implementation of proper ditching techniques, mulching, 

prompt reclamation, and construction of check dams in appropriate places (Appendix A). Additional wells and 

facilities associated with the Proposed Action also may increase the potential for a leak or spill of 

contaminants. 

Increased activities in the vicinity of the Green and White rivers or within drainages leading to these rivers may 

increase the potential for a release of contaminants into these drainages. KMG would adhere to the SPCCP 

developed for the project. Adherence to the plan would reduce the likelihood of a spill. In the event of a spill, 

KMG would follow cleanup protocols outlined in the SPCCP. KMG also has committed to following the USFWS 

BMPs for work in Utah streams where pipelines or roads cross a stream. 

Special Status Fish Species Impacts

Colorado River Endangered Fish, Bluehead Sucker, Flannelmouth Sucker, and Roundtail Chub. In 

addition to impacts outlined under the No Action Alternative, impacts to the Colorado River endangered fish 

and sensitive fish species as a result of the Proposed Action Alternative may include increased erosion and 

sedimentation associated with the additional surface disturbance. Additional water would be used for drilling 

and construction activities. Additional pipelines, storage, and transportation of hydrocarbons and toxic 

substances would increase the potential for a release that could reach the Green or White rivers. Consumptive 

water use associated with this alternative would result in depletions of approximately 7,571 acre-feet of water 

or 757 acre-feet per year from the Colorado River Basin. Water depletions of the Colorado River Basin are 

considered an adverse impact to listed fish species. 

The RIP for Endangered Fish Species in the Upper Colorado River Basin was established January, 22, 1988, 

to mitigate for water depletion impacts to federally endangered fish species. Under the RIP, any water 

depletions from tributary waters within the Colorado River Drainage are considered to jeopardize the continued 

existence of these fish species. In 1993, a Section 7 agreement was implemented that identifies actions 

currently required to recover these species. Included in this agreement, any single incremental withdrawal of 

100 acre-feet (annual average) or more would require the water user to make a payment to the USFWS Upper 

Colorado River Endangered Fish Recovery Program. The fee is intended to be a reasonable and prudent 

alternative to avoid jeopardy to the endangered fish by depletion of the Upper Colorado River Basin. The fee 

would be applied to the annual average depletion from the Green River aquifer. Depletions for this project 

would exceed 100 acre-feet annually and would require payment to the RIP. 

Similar to the Colorado River fish, the above-mentioned water depletion impacts also could affect the 

flannelmouth sucker, bluehead sucker, and roundtail chub, but would not likely result in a loss of viability, nor 

cause a trend towards federal listing of these species. It should be noted that some depletion-related impacts 

to these species would be reduced as a result of project mitigation. Specifically, KMG has committed to 

adhering to multiple USFWS and UDWR recommended protection measures to reduce impacts to special 

status fish species (Appendix A). 

KMG also has agreed to pay the USFWS RIP’s depletion fee for water depletions of 100 acre-feet per year or 

more. Based on KMG’s proposed water sources including both historic and post-January 22, 1988, water 

sources, approximately 210.4 acre-feet per year from post-January 22, 1988, sources would be assessed a 

DEIS 4-151 July 2010
fee of $18.99 per acre-foot per year (USFWS 2009b), for a one-time total fee of $3,995.50. The remaining 

546.6 acre-feet per year would be obtained from a historic water source that does not require a fee 

(USFWS 2009b). 

4.15.2.3 Mitigation and Mitigation Effectiveness 

The following mitigation measures are recommended to further minimize project-related impacts to wildlife and 

special status wildlife and fish species: 

WFM-1 Dirt ramps would be built and maintained at an angle not to exceed 45 degrees every 150 to 

200 feet along open pipeline trenches to reduce habitat fragmentation and increase accessibility of 

small animals (mammals, reptiles, amphibians) to adjacent habitats. 

WFM-2 On level or gently sloping ground (5 percent slope or less), surface pipelines (4 inches or greater in 

diameter) would be elevated a minimum of 6 inches above the ground to allow passage of small 

animals beneath the pipe. This ground clearance would be achieved by placing the pipeline on 

blocks at intervals of 150 or 200 feet. 

WFM-3 Tree removal within pinyon-juniper habitat would occur outside of the nesting season for migratory 

birds (April 1 to July 31). 

WFM-4 Reserve pits would be closed (drained and filled-in) no more than 90 days after well construction is 

complete in order to minimize migratory bird exposure for potentially toxic drilling fluids. 

WFM-5 An infiltration gallery (which typically consists of buried perforated pipes that collect water) would be 

constructed in a USFWS approved location for off-channel pumping activities that take place in the 

White or Green rivers. The construction of the infiltration gallery potentially would be subject to 

additional NEPA analyses. 

WFM-6 Pumps located in the channel of the White or Green rivers would be shut off between 2200 and 

0200 hours unless water is being drawn from an infiltration gallery or water well above high flows. 

WFM-7 All pump intakes would be screened with 3/32-inch mesh material. 

SSS-2 Development activity would be avoided within 660 feet of white-tailed prairie dog colonies. If not 

possible, development would be designed in coordination with the BLM to minimize impacts to 

active colonies. 

Mitigation measures WFM-1 and WFM-2 would be effective in allowing passage for small mammals, reptiles, 

and amphibians along pipeline trenches as well as under surface pipelines. This would be effective in reducing 

overall fragmentation impacts to smaller, less mobile wildlife. 

Mitigation measures WFM-3 and WFM-4 would be effective in reducing overall impacts to migratory bird 

species that may be found within the GNBPA. Within the GNBPA, a majority of the BCC and PIF migratory 

bird species rely extensively on pinyon-juniper habitats for nesting and foraging. Not allowing disturbance 

within this habitat during the breeding season would greatly reduce impacts to breeding migratory bird species. 

Mitigation measure WFM-4 would minimize the exposure time migratory birds have with potentially toxic 

drilling fluids in reserve pits. As a result, this mitigation measure would reduce mortalities to migratory birds. 

Mitigation measures WFM-5, WFM-6, and WFM-7 would add protective measures to KMG’s existing ACEPM 

for threatened and endangered fish species. These measures would avoid entrainment of threatened and 

endangered fish and larvae during pumping activities in the Green and White rivers. Mitigation measure 

WFM-6 would protect the midnight peak of larval drift. 

DEIS 4-152 July 2010
Mitigation measure SSS-2 would reduce impacts to white-tailed prairie dog colonies within the GNBPA. 

Avoiding disturbance to active colonies would reduce direct mortalities to individuals and reduce habitat 

fragmentation; thereby, allowing the colony to maintain connectivity with surrounding colonies. 

4.15.2.4 Residual Impacts 

Assuming a maximum development of 3,675 wells, there would be a long-term surface disturbance of 

approximately 12,652 acres of wildlife habitat (excluding areas identified as already developed). Habitat 

disturbance would occur incrementally over the estimated 10-year field development period. 

Habitat reductions for wildlife species, including special status species, would occur in the following habitat 

types: grassland (1,246 acres), sagebrush shrubland (4,548 acres), barren (490 acres), riparian (189 acres), 

agriculture (81 acres), salt-desert shrubland (5,279 acres), cliff/canyon (593 acres), and pinyon-juniper 

(225 acres). There would be a corresponding reduction in wildlife populations within these habitat types over 

the long-term, until reclamation is complete and native vegetation has become re-established (at least 

10 years for herbaceous-dominated plant communities and 25 to 50 years for shrub species). However, the 

severity of these reductions would depend on factors such as sensitivity of the species, seasonal use, type and 

timing of project activities, and physical parameters (e.g., topography, cover, forage, and climate). 

Nesting losses for important migratory bird species (Appendix I) and special status migratory bird species 

would be minimized through mitigation measure WFM-3. However, impacts to ground nesting migratory birds 

during the breeding season may result in the abandonment of a nest site or territory or the loss of eggs or 

young and may lead to a loss of productivity for the breeding season. 

Active raptor nests would be protected by seasonal and spatial constraints on a year-by-year basis in 

accordance with the ACEPMs for the project (Appendix A) and BMPs for raptors and their associated habitats 

in Utah, which are provided as an appendix to the Vernal RMP (BLM 2008b). Project development within the 

vicinity of inactive nests (0.5 mile or less) likely would result in a reduction of habitat suitability and may 

preclude future use of nest sites as well densities increase. Future use by raptors also would be influenced by 

the quality of foraging and nesting habitat as well as recovery of the prey base from prolonged drought. 

Potential impacts to wildlife species, particularly raptors and migratory bird species, may occur as a result of 

continued workover activities within the GNBPA. 

Greater Sage-grouse

Implementation of the greater sage-grouse protection measures presented in the Vernal RMP would be 

partially effective in reducing impacts to greater sage-grouse. However, due to the level of development under 

the Proposed Action, there would be a potential for loss of the East Bench population of greater sage-grouse. 

Colorado River Endangered Fish

Up to 7,571 acre-feet (757 acre-feet per year for 10 years) would be withdrawn from the White and Green 

rivers and would represent depletions of these rivers. A portion of this depletion (210.4 acre-feet) requires 

payment to the USFWS Upper Colorado River Endangered Fish Recovery Program. In order to offset potential 

water depletion impacts from project development, KMG would provide a one-time contribution to this program 

in the amount of $18.99 per acre-feet per year for a total of $3,995.50. 

4.15.3 Resource Protection Alternative 

The Resource Protection Alternative would be similar to the Proposed Action, but places a limit on the 

maximum number of new well pad locations to 1 pad per 40 acres (maximum of 16 well pads per section). 

Based on proposed activities identified in Chapter 2.0, 3,675 new wellbores would be constructed at a rate of 

358 wells per year over a 10-year timeframe, including associated infrastructures (e.g., compressor stations, 

DEIS 4-153 July 2010
gathering pipelines, access roads). KMG would implement environmental protection measures consistent with 

the ACEPMs (Appendix A) and the Reclamation Plan (Appendix E). 

4.15.3.1 Impacts to Terrestrial Wildlife 

Wildlife habitat surface disturbance (excluding developed areas; Table 4.11-3) would be approximately 

8,143 acres or 4,509 acres less than under the Proposed Action. The 8,143 acres would consist of 

approximately 3,437 acres of salt-desert shrubland; 2,961 acres of sagebrush shrubland; 53 acres of 

agriculture; 147 acres of pinyon-juniper woodland; 319 acres of barren; 29 acres of riparian; 811 acres of 

grassland; and 386 acres of cliff/canyon habitat. 

Under the Resource Protection Alternative, direct impacts would result from the long-term surface disturbance 

of approximately 8,143 acres of wildlife habitat (excluding developed areas). However, due to the limited 

number of well pads, direct impacts would be reduced compared to the Propose Action. Indirect effects from 

human presence, dispersal of noxious and invasive weeds, and dust effects from unpaved road traffic would 

reduce habitat quality and utilization in the GNBPA. However, similar to direct impacts, indirect impacts would 

be reduced compared to the Proposed Action. In addition, it is anticipated that noise generated by drilling 

activities would exceed 45 dBA (a general threshold for wildlife avoidance) within 1,175 feet of drill pads under 

the Resource Protection Alternative. Collectively, these effects would result in overall changes in habitat 

quality, habitat loss, increased animal displacement, reductions in local wildlife populations, and changes in 

species composition until the economic life of the project is complete and native vegetation has become 

re-established. However, the severity of these impacts on terrestrial wildlife would be less than the Proposed 

Action and would depend on factors such as sensitivity of the species, seasonal use, type and timing of project 

activities, and physical parameters (e.g., topography, cover, forage, climate). 

Species Effects

Game Species. Potential direct impacts to big game species (e.g., mule deer, pronghorn, elk) from wellfield 

development include the incremental long-term surface disturbance of potential foraging habitat within the 

GNBPA (Table 4.15-5). Impacts to pronghorn would be less than under the Proposed Action due to 

4,509 acres less of habitat disturbance associated with fewer well pads at 40-acre spacing. This level of 

disturbance would have much less of an impact to pronghorn and would limit fragmentation impacts compared 

to the Proposed Action. Pronghorn likely would continue to occupy their current habitats within the GNBPA. No 

direct impacts to Rocky Mountain bighorn sheep or bison would be expected due to the lack of animals 

present within the GNBPA. However, impacts to UDWR designated habitat may occur, which could potentially 

limit future reintroduction efforts within the GNBPA. 

Table 4.15-5 Long-term Surface Disturbance of Big Game Habitat, Resource Protection Alternative

Species Habitat1

Total Habitat Within 

GNBPA (acres) 

Estimated Surface 

Disturbance (acres)

2

Pronghorn Year-long Crucial 132,109 6,607

Year-long Substantial 2,310 116

Mule deer Year-long Crucial 19,156 958 

Winter Substantial 2,352 118 

Elk Winter Substantial 312 16

Rocky Mountain bighorn sheep Year-long Crucial 27,069 1,354 

Bison Year-long Crucial 117,993 5,901

1

 Habitat designated by UDWR. Elk and mule deer data taken from the Vernal RMP (BLM 2008b). 

2

 Due to the programmatic nature of this EIS, actual disturbance values were not available; therefore, a quantitative assessment was calculated as a 

percentage of habitat type within the GNBPA multiplied by the proposed new surface disturbance for the Resource Protection Alternative 

(8,147 acres). 

DEIS 4-154 July 2010
Indirect impacts to big game species under the Resource Protection Alternative would be less than discussed 

under the Proposed Action due to the reduction in the total number of well pads and the number of well pads 

per section; therefore reducing the total amount of surface disturbance within the various big game habitats. 

Direct and indirect impacts to small game species (i.e., upland game birds, waterfowl, small game mammals) 

within the GNBPA would be the same as discussed above for big game species. Impacts would result in the 

incremental long-term surface disturbance of approximately 8,143 acres of potential wildlife habitat (excluding 

developed areas). However, due to the decrease in the number of well pads as compared to the Proposed 

Action, impacts to small game would be less than those associated with the Proposed Action. 

Non-game Species. Direct impacts to nongame species generally would be the same as under the Proposed 

Action except for the acres of habitat impacted. Under the Resource Protection Alternative, the development of 

3,675 wells would result in the long-term disturbance (at least 10 years for herbaceous-dominated plant 

communities and 25 to 50 years for shrub species) of approximately 8,143 acres of habitat (excluding 

developed areas). Indirect impacts would be the same as discussed above for big game and small game 

species. 

As discussed for the No Action, a number of breeding raptor species have been documented within the 

GNBPA. Potential direct impacts to raptors would result from the long-term surface disturbance of 

approximately 8,143 acres of potential breeding and foraging habitat (excluding developed areas). A total of 

110 raptor nest sites have been identified within the GNBPA. Direct and indirect impacts would result in a 

reduction in habitat suitability and overall carrying capacity for raptors in the GNBPA. These impacts would be 

similar to but less severe in nature under the Resource Protection Alternative due to a reduced number of new 

well pads compared to the Proposed Action. In addition, raptor nests would be identified and protected in 

accordance with KMG’s ACEPMs (Appendix A) and the BMPs for raptors and their associated habitats in 

Utah provided as an appendix to the Vernal RMP (BLM 2008b). 

Impacts to breeding migratory bird species could result in the abandonment of a nest site or territory, or the 

loss of eggs or young, if project activities were to occur during the breeding season (April 1 through July 31 for 

passerine species or January 1 through August 31 for raptor species). Loss of an active nest site, incubating 

adults, eggs, or young would violate the MBTA and, in the case of the golden eagle, would violate the Bald and 

Golden Eagle Protection Act. In addition, the actions described above would not be in compliance with 

EO 13186. Loss of an active nest site potentially could affect populations of important migratory bird species 

that may occur within the GNBPA (Appendix I). Applicant-committed measures to avoid bird losses 

associated with exhaust stacks would be the same as those discussed under the Proposed Action. 

Like the Proposed Action, workover and maintenance could occur at any time during the breeding season, and 

consequently, there would be a risk of nest abandonment or loss of eggs and young if these activities occurred 

near an active nest. ACEPMs to avoid raptor electrocution would be the same as those discussed under the 

Proposed Action. 

Habitat Fragmentation

The pattern of habitat fragmentation from roads and wells generally would be the same as that identified under 

the Proposed Action; however, this alternative would only consist of 1,484 new single well pads and 594 miles 

of new access roads. This would result in an overall decrease in fragmentation effects compared to the 

Proposed Action. Noise and indirect development effects within the GNBPA also would be lower because the 

Resource Protection Alternative limits surface disturbance to a maximum of 16 well pads per section 

compared to as many as 32 well pads per section under the Proposed Action. 

Special Status Wildlife Species Impacts

Black-footed Ferret, White-tailed Prairie Dog. Direct impacts to the black-footed ferret and white-tailed 

prairie dog would be similar to those discussed under the Proposed Action except for 4,063 acres less 

DEIS 4-155 July 2010
disturbance to occupied and potential white-tailed prairie dog habitat within the GNBPA. Indirect impacts would 

be the same as the Proposed Action Alternative, but to a lesser extent due to reduced habitat disturbance and 

fragmentation associated with the Resource Protection Alternative. As a result, the Resource Protection 

Alternative “may affect, but is not likely to adversely affect” the black-footed ferret. 

Big Free-tailed Bat, Fringed Myotis, Spotted Bat, Townsend’s Big-eared Bat. Direct impacts to sensitive 

bat species would be similar to those discussed under the Proposed Action except for 4,511 acres less 

disturbance to potential habitat within the GNBPA. Indirect impacts would be the same as the Proposed Action 

Alternative, but to a lesser extent due to reduced habitat disturbance and fragmentation associated with the 

Resource Protection Alternative. 

Bald Eagle, Lewis’ Woodpecker, Western Yellow-billed Cuckoo. Direct impacts to these three bird species 

would be similar to those discussed under the Proposed Action except for 4,511 acres less disturbance to 

potential habitat, including 160 acres of riparian habitat, within the GNBPA. Indirect impacts would be the 

same as the Proposed Action Alternative, but to a lesser extent due to reduced habitat disturbance and 

fragmentation associated with the Resource Protection Alternative. Therefore, the Resource Protection 

Alternative “may affect, but is not likely to adversely affect” the western yellow-billed cuckoo. 

Burrowing Owl. Direct impacts to the burrowing owl would be similar to those discussed under the Proposed 

Action except for 4,063 acres less disturbance to potential habitat within the GNBPA. Indirect impacts would 

be the same as the Proposed Action Alternative, but to a lesser extent due to reduced habitat disturbance and 

fragmentation associated with the Resource Protection Alternative. 

Ferruginous Hawk. Direct impacts to the ferruginous hawk would be similar to those discussed under the 

Proposed Action except for 4,511 acres less disturbance to potential habitat within the GNBPA. Indirect 

impacts would be the same as the Proposed Action Alternative, but to a lesser extent due to reduced habitat 

disturbance and fragmentation associated with the Resource Protection Alternative. 

Greater Sage-grouse. As stated under the No Action Alternative, it is assumed that habitat conditions for 

greater sage-grouse within the GNBPA are not ideal, and therefore, impacts to the East Bench population may 

lead to the further decline of the population. Under the Resource Protection Alternative, the same protection 

measures identified under the Proposed Action would be implemented to mitigate and minimize impacts to 

greater sage-grouse. 

Under the Resource Protection Alternative, development of up to 16 well pads per section (40-acre spacing) is 

proposed from a maximum of 1,484 well pads within the GNBPA. Table 4.15-6 presents the long-term surface 

disturbance associated with the Resource Protection Alternative within greater sage-grouse habitat. 

Table 4.15-6 Long-term Surface Disturbance of Greater Sage-grouse Habitat, Resource 

Alternative 

Protection 

1 Lek Buffer/Habitat Type

Total Habitat Within GNBPA 

(acres) 

Estimated Surface Disturbance 

(acres)2

0.25 Mile Lek Buffer (NSO) 491 0 

2.0 Mile Lek Buffer 15,318 766 

Nesting Habitat 23,380 1,169 

Brooding Habitat 61,744 3,088 

Winter Habitat 46,969 2,349 

1 Lek buffers taken from the Vernal RMP (BLM 2008b). Habitat type provided by UDWR. 

2 Due to the programmatic nature of this EIS, actual disturbance values were not available; therefore, a quantitative assessment was 

calculated as a percentage of each lek buffer/habitat within the GNBPA multiplied by the proposed new surface disturbance for the 

Resource Protection Alternative (8,147 acres). 

DEIS 4-156 July 2010
Impacts under the Resource Protection Alternative would be similar in nature to the Proposed Action 

Alternative, but to a lesser extent due to the fewer number of well pads, miles of access roads, and miles of 

other linear facilities (e.g., powerlines, pipelines). Direct impacts to greater sage-grouse would include the 

incremental long-term surface disturbance near lek sites and to nesting, brooding, and wintering habitats. 

Based on the proposed well pad density under the Resource Protection Alternative, greater sage-grouse may 

abandon certain areas of the GNBPA due to loss and/or alteration of habitat as a result of field development 

activities. Indirect impacts to greater sage-grouse would be the same as described under the Proposed Action 

Alternative. 

Similar to the Proposed Action Alternative, implementation of the requirements within the BLM Vernal RMP to 

minimize and mitigate impacts to greater sage-grouse under the Resource Protection Alternative generally 

would not be sufficient to protect the East Bench population, even at the reduced well pad densities proposed. 

As presented under the Proposed Action Alternative, recent research (published since the release of the BLM 

Vernal RMP) has shown that measures such as those listed in the Vernal RMP are not sufficient to maintain 

greater sage-grouse populations, especially smaller, isolated populations. Adherence to the seasonal and 

spatial restrictions in the Vernal RMP would have minimal success as these restrictions are more suitable for 

smaller field development projects. Therefore, implementation of the Resource Protection Alternative likely 

would have population level impacts and may contribute to the further decline of the East Bench population of 

greater sage-grouse. 

Grasshopper Sparrow, Long-billed Curlew, Short-eared Owl. Direct impacts to these three bird species 

would be similar to those discussed under the Proposed Action except for 3,864 acres less disturbance to 

potential habitat (grassland, sagebrush, salt-desert shrubland) within the GNBPA. Indirect impacts would be 

the same as the Proposed Action Alternative, but to a lesser extent due to reduced habitat disturbance and 

fragmentation associated with the Resource Protection Alternative. 

Corn Snake and Smooth Greensnake. Direct and indirect impacts to these two snake species would be 

similar to those discussed under the Proposed Action Alternative except for 4,511 acres less disturbance to 

potential habitat within the GNBPA. 

4.15.3.2 Impacts to Fisheries Resources 

Impacts to fisheries resources under the Resource Protection Alternative would be similar to the Proposed 

Action. Implementation of the Resource Protection Alternative would result in approximately 8,147 acres of 

surface disturbance. Therefore, due to the reduced ground disturbance under the Resource Protection 

Alternative, sediment load and spill potential impacts would be reduced proportionally. Although the amount of 

ground disturbance is reduced in the Resource Protection Alternative, the number of wells and subsequent 

water consumption would be similar to the Proposed Action. 

Special Status Fish Species Impacts

Direct and indirect impacts to special status fish species under the Resource Protection Alternative are similar 

to the impacts described under the Proposed Action Alternative. Proposed development under the Resource 

Protection Alternative has less associated surface disturbance than the Proposed Action Alternative and, 

therefore, reduces the erosion potential. Consumptive water use associated with this alternative would result in 

depletions of approximately 7,571 acre-feet of water, or 757 acre-feet per year, from the Colorado River Basin 

over the life of the project. Water depletions within the Colorado River Basin are considered an adverse impact 

to listed fish species. 

4.15.3.3 Mitigation and Mitigation Effectiveness 

In addition to the mitigation measure described under the Proposed Action Alternative, the following mitigation 

measures are recommended to further minimize project-related impacts to special status wildlife species, 

specifically greater sage-grouse: 

DEIS 4-157 July 2010
SSS-3 No surface disturbing activities would be allowed within 0.5 mile of active greater sage-grouse leks 

year round. 

SSS-4 Prior to siting new well pads within 2 miles of an active greater sage-grouse lek, habitat mapping 

(using available soils and vegetation data, National Agriculture Imagery Program imagery, and field 

verification) to determine areas of suitable greater sage-grouse habitat would be conducted, in 

coordination with UDWR and the BLM. Once this data is available, it would be used to determine an 

appropriate surface development pattern that would result in no net population-level impacts from 

the proposed project. 

Once an appropriate surface development pattern has been identified, the following mitigation measures 

would be applied as appropriate. 

SSS-5 No surface disturbing activities would occur within 2 miles of an active greater sage-grouse lek 

during the breeding season (February 15 through June 15). Outside of the breeding season, 

existing roads and facilities would be utilized to the extent possible, and any new development 

would be located as far away from the lek as possible. 

SSS-6 Within 2 miles of an active greater sage-grouse lek during the breeding season (February 15 

through June 15), construction and operational activities would be avoided at dawn (sunrise to 

9:00 a.m.) and dusk (5:00 p.m. to sunset) when birds are likely to be on a lek. 

SSS-7 Within 2 miles of an active greater sage-grouse lek, the best available technology (e.g., installation 

of multi-cylinder pumps, hospital sound reducing mufflers or other sound reducing devices, and 

placement of exhaust systems) would be installed as appropriate to reduce noise levels at, or direct 

noise away from, active greater sage-grouse leks. The reduction of noise levels would be reduced to 

dBA levels established in ongoing and future studies regarding noise impacts to greater sagegrouse. 

SSS-8 Tanks for wells within 2 miles of an active greater sage-grouse lek would be located out of line-ofsight of the lek, or would be squat tanks. Off-site tanks or central tank batteries would be considered 

where technically and administratively feasible. 

SSS-9 Roads within 2 miles of an active greater sage-grouse lek would be constructed to the minimum 

standard and width possible to meet safety concerns. In addition, road maintenance activities during 

the greater sage-grouse breeding season (between February 15 and June 15) would be minimized. 

SSS-10 Mats would be utilized where feasible, instead of traditional pad construction, to minimize the 

disturbance to greater sage-grouse habitat. 

SSS-11 Within 2 miles of an active greater sage-grouse lek, interim reclamation seed mixes would be 

designed to provide habitat for greater sage-grouse. 

The East Bench greater sage-grouse telemetry studies would continue, through coordination between the 

BLM, UDWR, and KMG, to help determine the effectiveness of the mitigation measures listed above. 

Mitigation measures SSS-3 through SSS-11 would be effective in reducing impacts to greater sage-grouse 

habitat (nesting, brooding, and wintering) by minimizing impacts associated with development and operation 

activities within 2 miles of an active lek. Mitigation measure SSS-3 would prohibit any surface disturbing 

activities year round within 0.5 mile of an active greater sage-grouse lek, thus creating an expanded area of 

NSO around active leks. Mitigation measures SSS-4 and SSS-5 would only allow surface disturbing activities 

within 2 miles of an active lek that would result in no net population level impacts to greater sage-grouse. 

Mitigation measures SSS-6, SSS-7, and SSS-9 would reduce indirect greater sage-grouse impacts associated 

DEIS 4-158 July 2010
with human presence and noise. Mitigation measure SSS-8, along with KMG’s ACEPM of installing raptor 

deterring devices on powerlines, would reduce impacts (predation) on greater sage-grouse by limiting new 

perches for foraging raptors (i.e., hawks, eagles, falcons) and corvids (i.e., crows, ravens, magpies). Mitigation 

measure SSS-10 and SSS-11 would reduce impacts to greater sage-grouse habitat and promote restoration of 

suitable greater sage-grouse habitat through reclamation. 

4.15.3.4 Residual Impacts 

Residual impacts to wildlife species, including all special status species except greater sage-grouse, would be 

the same as under the Proposed Action except for the amount of habitat disturbed. Assuming a maximum 

development of 3,675 wells, there would be a long-term surface disturbance of approximately 8,143 acres of 

wildlife habitat (excluding areas identified as already developed). Habitat disturbance would occur 

incrementally over the estimated 10-year field development period. 

Habitat reductions for wildlife species, including special status species, would occur in the following habitat 

types: grassland (811 acres), sagebrush shrubland (2,961 acres), barren (319 acres), riparian (29 acres), 

agriculture (53 acres), salt-desert shrubland (3,437 acres), cliff/canyon (386 acres), and pinyon-juniper 

(147 acres). There would be a corresponding reduction in wildlife populations within these habitat types over 

the long-term, until reclamation is complete and native vegetation has become re-established (at least 

10 years for herbaceous-dominated plant communities and 25 to 50 years for shrub species). However, the 

severity of these reductions would depend on factors such as sensitivity of the species, seasonal use, type and 

timing of project activities, and physical parameters (e.g., topography, cover, forage, and climate). 

Greater Sage-grouse

Implementation of SSS-3 through SSS-11 would be effective in reducing impacts to the East Bench population 

of greater sage-grouse. Therefore, no residual impacts to greater sage-grouse would occur as a result of the 

Resource Protection Alternative. 

Colorado River Endangered Fish

Residual impacts to endangered fish species would be the same as discussed under the Proposed Action. 

4.15.4 Optimal Recovery Alternative 

Under the Optimal Recovery Alternative, 13,446 wellbores would be constructed at a rate of 672 wells per year 

over a 20-year timeframe, including associated infrastructures (e.g., compressor stations, gathering pipelines, 

access roads). This alternative is designed to maximize recovery of the gas resource by increasing the number 

of wellbores to achieve 10-acre surface and downhole spacing throughout the GNBPA. KMG would implement 

development using environmental protection measures consistent with the ACEPMs (Appendix A) and the 

Reclamation Plan (Appendix E). 

4.15.4.1 Impacts to Terrestrial Wildlife 

Long-term wildlife habitat surface disturbance (excluding developed areas; Table 4.11-4) would be 

approximately 42,598 acres or 29,946 acres more than under the Proposed Action. The 42,598 acres would 

consist of approximately 17,775 acres of salt-desert shrubland; 1,997 acres of cliff/canyon habitat; 

15,313 acres of sagebrush shrubland; 637 acres of riparian; 758 acres of pinyon-juniper woodland; 

1,650 acres of barren; 4,194 acres of grassland; and 274 acres of agriculture habitat. 

Under the Optimal Recovery Alternative, direct impacts would result from the long-term habitat disturbance of 

approximately 42,598 acres of wildlife habitat (excluding developed areas). Indirect effects from human 

presence, dispersal of noxious and invasive weeds, and dust effects from unpaved road traffic would further 

reduce habitat quality and utilization in the GNBPA. In addition, it is anticipated that noise generated by drilling 

activities exceeds 45 dBA (a general threshold for wildlife avoidance) within 1,175 feet of drill pads under the 

DEIS 4-159 July 2010
Optimal Recovery Alternative. Collectively, these effects would result in overall changes in habitat quality, 

habitat loss, increased animal displacement, reductions in local wildlife populations, and changes in species 

composition until the economic life of the project is complete and native vegetation has become re-established. 

However, the severity of these effects on terrestrial wildlife would depend on factors such as sensitivity of the 

species, seasonal use, type and timing of project activities, and physical parameters (e.g., topography, cover, 

forage, climate). 

Species Effects

Game Species. Potential direct impacts to big game species (e.g., mule deer, pronghorn, elk) from wellfield 

development include the incremental long-term surface disturbance of potential foraging habitat within the 

GNBPA (Table 4.15-7). It is likely that impacts from such high well density would result in the abandonment of 

suitable habitat in the GNBPA by big game species. No direct impacts to Rocky Mountain bighorn sheep or 

bison would be expected due to the lack of animals present within the GNBPA. However, impacts to UDWR 

designated habitat would occur, which would greatly limit or possibly prevent future reintroduction efforts within 

the GNBPA. 

Table 4.15-7 Long-term Surface Disturbance of Big Game Habitat, Optimal Recovery Alternative 

Total Habitat Within Estimated Surface 

Species Habitat1 GNBPA (acres) Disturbance (acres)2

Pronghorn Year-long Crucial 132,109 34,562 

Year-long Substantial 2,310 604

Mule deer Year-long Crucial 19,156 5,011 

Winter Substantial 2,352 615 

Winter Substantial 312 82

Rocky Mountain bighorn sheep Year-long Crucial 27,069 7,082 

Bison Year-long Crucial 117,993 30,869

1

 Habitat designated by UDWR. Elk and mule deer taken from the Vernal RMP (BLM 2008b). 

2

 Due to the programmatic nature of this EIS, actual disturbance values were not available; therefore, a quantitative assessment was 

calculated as a percentage of habitat type within the GNBPA multiplied by the proposed new surface disturbance for the Optimal 

Recovery Alternative (42,620 acres). 

Indirect impacts to big game species under the Optimal Recovery Alternative would be more severe than 

those associated with the Proposed Action due to the increase in well pad density. These impacts likely would 

lead to abandonment of the GNBPA by big game species. 

Direct and indirect impacts to small game species (i.e., upland game birds, waterfowl, small game mammals) 

within the GNBPA would be the same as discussed above for big game species. Direct impacts would result in 

the incremental long-term surface disturbance of approximately 42,598 acres of potential wildlife habitat 

(excluding developed areas). However, similar to big game, well density of this magnitude likely would lead to 

the abandonment of the GNBPA by small game species. 

Non-game Species. Direct impacts to nongame species generally would be the same as under the Proposed 

Action but expressed to a greater extent due to the additional surface disturbance associated with this 

alternative. Under the Optimal Recovery Alternative, the development of 13,446 wells would result in the 

long-term disturbance (at least 10 years for herbaceous-dominated plant communities and 25 to 50 years for 

shrub species) of approximately 42,598 acres of habitat (excluding developed areas). Indirect impacts would 

be the same as discussed above for game species. 

As discussed for the No Action Alternative, a number of breeding raptor species have been documented within 

the GNBPA. Potential direct impacts to raptors would result from the long-term surface disturbance of 

DEIS 4-160 July 2010
approximately 42,598 acres of potential breeding and foraging habitat (excluding developed areas). A total of 

110 raptor nest sites have been identified within the GNBPA. Direct and indirect impacts would result in a 

reduction in habitat suitability and overall carrying capacity for raptors in the GNBPA. Due to the high density of 

well pads, it is unlikely that any of the 110 raptor nests would ever be active in the future, despite KMG 

implementing their raptor nest ACEPMs (Appendix A) and the BLM’s BMPs for raptors and their associated 

habitats in Utah (BLM 2008b). 

Impacts to breeding migratory bird species could result in the abandonment of a nest site or territory, or the 

loss of eggs or young, if project activities were to occur during the breeding season (April 1 through July 31 for 

passerine species or January 1 through August 31 for raptor species). Loss of an active nest site, incubating 

adults, eggs, or young would violate the MBTA and, in the case of the golden eagle, would violate the Bald and 

Golden Eagle Protection Act. In addition, the actions described above would not be in compliance with 

EO 13186. Loss of an active nest site potentially could affect populations of important migratory bird species 

that may occur within the GNBPA (Appendix I). However, due to high density of well pads, it is likely that few 

bird species (other than tolerant species such as horned larks, ravens, and magpies) would be able to persist 

within the GNBPA. ACEPMs to avoid bird losses associated with exhaust stacks would be the same as 

discussed under the Proposed Action. 

Like the Proposed Action, workover and maintenance could occur at any time during the breeding season, and 

consequently, there would be a high risk of nest abandonment or loss of eggs and young if these activities, 

especially at such intense levels of development, occurred near an active nest. Applicant-committed measures 

to avoid raptor electrocution under the Optimal Recovery Alternative are the same as those discussed under 

the Proposed Action. 

Habitat Fragmentation

The pattern of habitat fragmentation from roads and wells generally would be the same as that identified under 

the Proposed Action; however, this alternative would consist of an additional 12,812 new single well pads and 

1,627 miles of new access roads. This would cause a large overall increase in fragmentation effects and likely 

would make the GNBPA inhabitable for many wildlife species. Noise and indirect development effects within 

the GNBPA also would increase because the Optimal Recovery Alternative is designed to maximize recovery 

of the gas resource by increasing the number of well pads to achieve a 10-acre surface spacing. 

Special Status Wildlife Species Impacts

Black-footed Ferret, White-tailed Prairie Dog. Direct impacts to the black-footed ferret and white-tailed 

prairie dog would be similar to those discussed under the Proposed Action except for an additional 

27,562 acres of disturbance to occupied and potential white-tailed prairie dog habitat within the GNBPA. 

Indirect impacts to these two species would be the same as the Proposed Action Alternative but expressed in 

greater extent due to the additional habitat disturbance and fragmentation associated with the Optimal 

Recovery Alternative. Due to such intense levels of development under the Optimal Recovery Alternative, it 

would be unlikely that these two species would persist within the GNBPA. 

Big Free-tailed Bat, Fringed Myotis, Spotted Bat, Townsend’s Big-eared Bat. Direct and indirect impacts 

to these three sensitive bat species would be similar to those discussed under the Proposed Action Alternative 

except for an additional 29,962 acres of disturbance to potential habitat associated with the Optimal Recovery 

Alternative. Due to such intense levels of development under the Optimal Recovery Alternative, it would be 

unlikely that these three bat species would persist within the GNBPA. 

Bald Eagle, Lewis’ Woodpecker, Western Yellow-billed Cuckoo. Direct impacts to these three species 

would be similar to those discussed under the Proposed Action except for an additional 29,962 acres of 

disturbance to potential habitat, including 448 acres of riparian habitat within the GNBPA. Indirect impacts to 

these three species would be the same as the Proposed Action Alternative but expressed in greater extent 

due to additional habitat disturbance and fragmentation associated with the Optimal Recovery Alternative. Due 

DEIS 4-161 July 2010
to such intense levels of development under the Optimal Recovery Alternative, it would be unlikely that these 

three bird species would persist within the GNBPA. 

Burrowing Owl. Direct impacts to the burrowing owl would be similar to those discussed under the Proposed 

Action except for an additional 27,562 acres of disturbance to potential burrowing owl habitat within the 

GNBPA. Indirect impacts to the burrowing owl would be the same as the Proposed Action but expressed in 

greater extent due to the additional habitat disturbance and fragmentation associated with the Optimal 

Recovery Alternative. Due to such intense levels of development, KMG’s raptor nest ACEPMs and the BLM’s 

BMPs for raptors and their associated habitats in Utah would not be sufficient to protect breeding raptors under 

the Optimal Recovery Alternative due to the unlikelihood of burrowing owls utilizing the GNBPA for nesting and 

foraging. 

Ferruginous Hawk. Direct impacts to the ferruginous hawk would be similar to those discussed under the 

Proposed Action Alternative except for an additional 29,962 acres of disturbance to potential ferruginous hawk 

habitat within the GNBPA. Indirect impacts to the ferruginous hawk would be the same as the Proposed Action 

but expressed in greater extent due to the additional habitat disturbance and fragmentation associated with the 

Optimal Recovery Alternative. Due to such intense levels of development, KMG’s raptor nest ACEPMs and the 

BLM’s BMPs for raptors and their associated habitats in Utah would not be sufficient under the Optimal 

Recovery Alternative due to the unlikelihood of ferruginous hawks utilizing the GNBPA for nesting and 

foraging. 

Greater Sage-grouse. As stated under the No Action Alternative, it is assumed that habitat conditions for 

greater sage-grouse within the GNBPA are not ideal, and therefore, impacts to the East Bench population may 

lead to the further decline of the population. Under the Optimal Recovery Alternative, the same protection 

measures identified under the Proposed Action would be implemented to mitigate and minimize impacts to 

greater sage-grouse. 

Under the Optimal Recovery Alternative, development of up to 64 well pads per section (10-acre surface 

spacing) is proposed for a maximum of 12,812 new well pads within the GNBPA. Table 4.15-8 presents the 

long-term surface disturbance associated with the Optimal Recovery Alternative within greater sage-grouse 

habitat. 

Table 4.15-8 Long-term Surface Disturbance of Greater Sage-grouse Habitat, Optimal Recovery 

Alternative 

1 Lek Buffer/Habitat Type

Total Habitat Within GNBPA 

(acres) 

Estimated Surface Disturbance 

(acres)2

0.25 Mile Lek Buffer (NSO) 491 0 

2.0 Mile Lek Buffer 15,318 4,007 

Nesting Habitat 23,380 6,117 

Brooding Habitat 61,744 16,153 

Winter Habitat 46,969 12,228 

1 Lek buffers taken from the Vernal RMP (BLM 2008b). Habitat types provided by UDWR. 

2 Due to the programmatic nature of this EIS, actual disturbance values were not available; therefore, a quantitative assessment was 

calculated as a percentage of each lek buffer/habitat within the GNBPA multiplied by the proposed new surface disturbance for the 

Optimal Recovery Alternative (42,620 acres). 

Impacts under the Optimal Recovery Alternative would be similar in nature to the Proposed Action Alternative 

but greatly magnified due to the increased number of well pads, miles of access roads, and miles of other 

linear facilities (e.g., powerlines, pipelines). Direct impacts to greater sage-grouse would include the 

incremental long-term surface disturbance near lek sites and to nesting, brooding, and wintering habitats. 

DEIS 4-162 July 2010
Based on the extremely high well pad density proposed under the Optimal Recovery Alternative, greater 

sage-grouse would almost certainly abandon the GNBPA due to loss and/or alteration of habitat. 

Similar to the Proposed Action Alternative, implementation of the requirements in the Vernal RMP to minimize 

and mitigate impacts to greater sage-grouse would not be sufficient to protect the East Bench population, 

especially at the well pad densities proposed under the Optimal Recovery Alternative. Adherence to the 

seasonal and spatial restrictions in the Vernal RMP would not be successful in preventing the decline of 

greater sage-grouse in the East Bench population. The Vernal RMP restrictions are more suitable for smaller 

field development projects and would not sufficiently address impacts from development scenarios such as the 

Optimal Recovery Alternative. Therefore, implementation of the Optimal Recovery Alternative likely would 

have population level impacts and likely would contribute to the loss of the East Bench population of greater 

sage-grouse. 

Grasshopper Sparrow, Long-billed Curlew, and Short-eared Owl. Direct impacts to these three bird 

species would be similar to those discussed under the Proposed Action Alternative except for an additional 

26,209 acres of disturbance to grassland, sagebrush, and salt-desert shrubland habitats within the GNBPA. 

Indirect impacts to these species would be the same as the Proposed Action but expressed to a greater extent 

due to the additional habitat disturbance and fragmentation associated with the Optimal Recovery Alternative. 

Due to such intense levels of development under the Optimal Recovery Alternative, it would be unlikely that 

these three bird species would persist within the GNBPA. 

Corn Snake and Smooth Greensnake. Direct and indirect impacts to these two snake species would be 

similar to those discussed under the Proposed Action Alternative except for an additional 29,962 acres of 

disturbance to potential habitat within the GNBPA. Due to such intense levels of development under the 

Optimal Recovery Alternative, it would be unlikely that these two snake species would persist within the 

GNBPA. 

4.15.4.2 Impacts to Fisheries Resources 

The Optimal Recovery Alternative would result in approximately 42,620 acres of surface disturbance. Due to 

the increase in surface disturbance, an increase in erosion and sediment yield would be anticipated. In 

addition, the increase in number of wells would increase the potential for spills. Under the Optimal Recovery 

Alternative, water consumption would increase proportionally and approximately 27,700 acre-feet, or 

1,385 acre-feet per year, would be consumed during the life of the project (approximately 20 years). 

Special Status Fish Species Impacts

In addition to impacts outlined under the No Action Alternative, impacts to the Colorado River endangered fish 

and the special status fish species as a result of the Optimal Recovery Alternative may include increased 

erosion and sedimentation associated with the additional 42,620 acres of surface disturbance. Additional water 

would be used for drilling and construction and construction activities. This additional water use would 

constitute a large depletion each year for the duration of drilling activities. Additional pipelines, storage, and 

transportation of hydrocarbons and toxic substances increase the potential for a release that could reach the 

Green or White rivers. Consumptive water use associated with this alternative would result in depletions of 

approximately 27,700 acre-feet, or 1,385 acre-feet per year, of water from the Colorado River Basin over the 

life of the project. Water depletions of the Colorado River Basin are considered an adverse impact to listed fish 

species. 

4.15.4.3 Mitigation and Mitigation Effectiveness 

Mitigation measures would be the same as described under the Proposed Action Alternative. However, 

mitigation measures WFM-1, WFM-2, WFM-3, and SSS-2 generally would not be sufficient to mitigate for 

impacts to wildlife species at the level of development proposed under the Optimal Recovery Alternative. 

Development activities under this alternative would be at such intense levels that a majority of wildlife species 

DEIS 4-163 July 2010
would not be able to persist within the GNBPA and therefore, any level of proposed mitigation would be 

ineffective. 

Mitigation effectiveness for WFM-4, WFM-5, WFM-6, and WFM-7 would be the same as described under the 

Proposed Action Alternative. 

4.15.4.4 Residual Impacts 

Residual impacts to wildlife species, including special status species, would be the same as described for the 

Proposed Action Alternative, but expressed to a greater extent due to the additional surface disturbance 

associated with the Optimal Recovery Alternative. Assuming a maximum development of 13,446 wells, there 

would be a long-term surface disturbance of approximately 42,598 acres of wildlife habitat (excluding areas 

identified as already developed). Habitat disturbance would occur incrementally over the estimated 20-year 

field development period. 

Habitat reductions for wildlife species, including special status species, would occur in the following habitat 

types: grassland (4,194 acres), sagebrush shrubland (15,313 acres), barren (1,650 acres), riparian (637 

acres), agriculture (274 acres), salt-desert shrubland (17,775 acres), cliff/canyon (1,997 acres), and pinyonjuniper (758 acres). There would be a corresponding reduction in wildlife populations within these habitat types 

over the long term, until reclamation is complete and native vegetation has become re-established (at least 

10 years for herbaceous-dominated plant communities and 25 to 50 years for shrub species). However, the 

severity of these reductions would depend on factors such as sensitivity of the species, seasonal use, type and 

timing of project activities, and physical parameters (e.g., topography, cover, forage, and climate). Due to the 

level of development proposed under the Optimal Recovery Alternative, many wildlife and special status 

species would not be able to persist within the GNBPA. 

Big game species such as mule deer, pronghorn, and elk likely would abandon the GNBPA due to the intense 

level of development under the Optimal Recovery Alternative. Big game generally would move to suitable 

habitats adjacent to the GNBPA. However, if adjacent habitats are at carrying capacity, an unquantifiable 

reduction in big game populations may occur. Impacts to Rocky Mountain bighorn sheep and bison habitat 

likely would limit or possibly prevent future reintroduction efforts due to the intense level of development under 

the Optimal Recovery Alternative. 

Nesting losses for important migratory bird species (Appendix I) and special status migratory bird species 

likely would occur as a result of impacts associated with development under the Optimal Recovery Alternative. 

Mitigation measure WFM-3 would not be sufficient in reducing impacts to these species. Due to the intense 

levels of development proposed under the Optimal Recovery Alternative, it is unlikely that bird species (other 

than tolerant species such as horned larks, ravens, and magpies) would be able to persist within the GNBPA. 

Active raptor nests would be protected by seasonal and spatial constraints on a year-by-year basis in 

accordance with the ACEPMs for the project (Appendix A) and BMPs for raptors and their associated habitats 

in Utah, which are provided as an appendix to the Vernal RMP (BLM 2008b). However, under the Optimal 

Recovery Alternative, such levels of development likely would reduce and possibly eliminate raptors from 

nesting within the GNBPA. 

Potential impacts to wildlife species, particularly raptors and migratory bird species, may occur as a result of 

continued workover activities within the GNBPA. However, due to the level of development proposed under 

the Optimal Recovery Alternative, most raptors and migratory bird species would not persist within the 

GNBPA, and only tolerant species such as horned larks, ravens, and magpies would continue to occupy the 

GNBPA. 

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DEIS 4-165 July 2010

Greater Sage-grouse

Implementation of the greater sage-grouse protection measures presented in the Vernal RMP would be 

partially effective in reducing impacts to greater sage-grouse. However, due to the level of development under 

the Optimal Recovery Alternative, there would be a potential for loss of the East Bench population of greater 

sage-grouse. 

Colorado River Endangered Fish

Up to 27,700 acre-feet (1,385 acre-feet per year for 20 years) would be withdrawn from the White and Green 

rivers and would represent depletions of these rivers. Depletions from the Green and White rivers require a 

payment to the USFWS Upper Colorado River Endangered Fish Recovery Program in order to offset potential 

water depletion impacts from project development. 

4.15.5 Relationship Between Local Short-term Uses of the Human Environment and 

Maintenance and Enhancement of the Long-term Productivity 

Long-term impacts associated with wildlife resources, including special status species, would consist of habitat 

removal and disturbance activities over an area of 12,652 acres for the Proposed Action; 8,143 acres for the 

Resource Protection Alternative; and 42,598 acres for the Optimal Recovery Alternative. This would minimize 

use by wildlife and special status species. Additionally, short-term impacts associated with increased human 

presence and noise within the GNBPA could displace animals from suitable cover, foraging, and breeding 

sites. 

Long-term water withdrawal from the White River and Green River alluvium would represent a minor long-term 

(life of project) habitat reduction for listed fish species in the White and Green rivers. This would be subject to 

payments to the USFWS Upper Colorado River Endangered Fish Recovery Program. 

4.15.6 Irreversible/Irretrievable Commitment of Resources 

No irreversible commitments are anticipated for Wildlife Resources. A total of 12,652 acres of wildlife habitat 

(excluding developed areas) for the Proposed Action; 8,143 acres for the Resource Protection Alternative; and 

42,598 acres for the Optimal Recovery Alternative would be incrementally lost during operations, an 

irretrievable commitment of this resource. However, this land would be subsequently revegetated. 

Consumptive water use and water depletions of up to 7,571 acre-feet from the Colorado River Basin for the 

Proposed Action and Resource Protection alternatives and 27,700 acre-feet for the Optimal Recovery 

Alternative would constitute an irreversible and irretrievable commitment for fisheries. 

A total of 12,652 acres of special status wildlife species habitat for the Proposed Action; 8,143 acres for the 

Resource Protection Alternative; and 42,598 acres for the Optimal Recovery Alternative would be 

incrementally lost during operations, an irretrievable commitment of this resource. This land would be 

subsequently revegetated.