Appendix A 

Site-specific Maps for Aboveground Facilities 

























Appendix B 

Construction, Reclamation, and Revegetation Plan 
Overland Pass Pipeline Project

Construction, Reclamation, and Revegetation Plan 

Prepared for:

Overland Pass Pipeline Company LLC 

Prepared by: 

November 2006 





































Appendix C 

Hydrostatic Test Plan 
OVERLAND PASS PIPELINE PROJECT 

HYDROSTATIC TEST PLAN 

DRAFT

Prepared by: 

Natural Resource Group, Inc. 

January 2007 
OVERLAND PASS PIPELINE PROJECT 

HYDROSTATIC TEST PLAN 

TABLE OF CONTENTS

Section Page

1.0 EXECUTIVE SUMMARY ................................................................................................ 1

2.0 WATER USE AND TESTING PLAN............................................................................... 5

2.1 Blacks Fork River............................................................................................................... 7

2.2.1 Water Use .............................................................................................................. 7

2.2.2 Testing ................................................................................................................... 7

2.2.3 Required Permits.................................................................................................... 8

2.2 Green River......................................................................................................................... 9

2.3.1 Water Use .............................................................................................................. 9

2.3.2 Testing ................................................................................................................... 9

2.3.3 Required Permits.................................................................................................. 11

2.3 North Platte River............................................................................................................. 11

2.4.1 Water Use ............................................................................................................ 11

2.4.2 Testing ................................................................................................................. 12

2.4.3 Required Permits.................................................................................................. 14

2.4 Laramie River ................................................................................................................... 14

2.5.1 Water Use ............................................................................................................ 14

2.5.2 Testing ................................................................................................................. 14

2.5.3 Required Permits.................................................................................................. 16

2.5 South Platte River- North Sterling Ditch .......................................................................... 16

2.6.1 Water Use ............................................................................................................ 16

2.6.2 Testing ................................................................................................................. 17

2.6.3 Required Permits.................................................................................................. 18

2.6 Private Wells..................................................................................................................... 18

2.7.1 Water Use ............................................................................................................ 18

2.7.2 Testing ................................................................................................................. 18

2.7.3 Required Permits.................................................................................................. 20

2.7 Storage Ponds ................................................................................................................... 20

2.8.1 Water Use ............................................................................................................ 20

2.8.2 Testing ................................................................................................................. 20

2.8.3 Required Permits.................................................................................................. 21

LIST OF FIGURES 

Figure 1-1 Hydrostatic Test Dewatering Schematic............................................................................. 2 

Figure 1-2 Typical Splash Pup in Waterbody...................................................................4 

Figure 1-3 In-Stream Protection for Caged Pump.............................................................5 

Figure 2-1 Hydrostatic Test Schematic of Water Sources and Transfers............................................. 6

i
APPENDICES 

Appendix A Hydrostatic Test Water Withdrawal and Discharge Location Maps 

ii
1.0 EXECUTIVE SUMMARY 

Overland Pass Pipeline Company LLC (Overland Pass) will hydrostatically test its proposed 759.82-mile 

natural gas liquids pipeline with pressurized water to ensure the system is capable of withstanding the 

operating pressure for which it was designed. Sections of the pipeline will be tested as a single segment 

utilizing water obtained from a combination of groundwater and surface water sources through specific 

agreements with landowners and land managing agencies, and in accordance with project plans and 

federal, state, and local regulations. 

The hydrostatic testing process will involve withdrawing water from an identified source to fill a test 

section, pressurizing the section to a pressure 25 percent greater than the maximum allowable operating 

pressure for a period commensurate with Title 49 Code of Federal Regulations Part 195. The water will

then be tested for potential pollutants before it is discharged back to the source waterbody or to stable

upland areas along the construction right-of-way if taken from surface water or private wells, and back to

the source if taken from water storage ponds. Discharge locations will be within 50-100 feet from the 

edge of a waterbody at either the eastern end or western end of a test section when unable to discharge

directly back to the source waterbody’s instream flow. These methods will minimize the possibility of 

introducing nuisance aquatic species into other watersheds, and minimize or eliminate depletions to the

waterbody or watershed. Test water will be discharged directly into surface waters only when authorized 

or required by Overland Pass’ National Pollutant Discharge Elimination System permits. Water will be 

discharged (as required and/or permitted) back to the source waterbody in all cases where feasible; this

will eliminate any depletions to the watersheds, but pushing the water back to its source, through the 

pipeline may increase the length of time for hydrostatic testing. In some cases, water may be sprayed on 

agricultural fields as irrigation in coordination with landowners. Energy dissipation devices, as depicted 

in Figures 1-1 and 1-2, will be used during discharges to prevent erosion, streambed scour, suspension of

sediments, and excessive streamflow. Sediment filtration bags will be used in conjunction with energy 

dissipation devices on PNG lands. Overland Pass will not add any chemicals to the hydrostatic test water. 

Overland Pass has identified potential water sources to be used for filling each pipe test section and has

been in consultation with the various agencies regarding water use. Overland Pass will continue these 

consultations, including those with the U.S. Fish and Wildlife Service (FWS) regarding water depletion 

and potential downstream impacts on threatened and endangered species if hydrostatic test water is 

removed from sensitive water resources. Hydrostatic testing will be conducted in a manner consistent

with Overland Pass’ detailed environmental plans and permit requirements. 

In order to prevent the entrainment of fish or other species of concern during hydrostatic test water 

withdrawal from waterbodies, 1⁄2 to 1 inch mesh will be used and installed around the intake hoses (see

figure 1-3). Overland Pass will continue agency consultations to determine if there are any additional 

requirements regarding this issue. Overland Pass will attempt to avoid backwater areas, slow flow areas,

and the mouths of tributary streams when determining the location for hydrostatic intake hoses in

waterbodies. 

To minimize impacts on surface waters and to prevent erosion Overland Pass plans to discharge

hydrostatic test water using a splash pup system (see figures 1-1 and 1-2). A splash pup is a smaller 

section of pipeline welded at the end of the discharge line at a 90-degree angle. Water is discharged 

through a splash pup and into a filter bag or other sediment entrapping device, which allows the water to

be sprayed onto the ground surface within the structure or back to the source waterbody’s instream flow.

Use of a splash pup is an effective means of minimizing erosion on the ground surface and dissipating 

energy to avoid increasing the turbidity of the waterbody and causing significant changes to the flow

velocity of a river. All hydrostatic testing activities will be monitored by environmental and craft

inspectors and the outflow rates adjusted if necessary so that erosion impacts will be avoided. 

1
Figure 1-1 Hydrostatic Test Dewatering Schematic 

2


The start dates for water withdrawal and hydrostatic testing are dependent on receipt of the Bureau of 

Land Management Right-of-Way Grant and project Notice to Proceed. Overland Pass currently

anticipates hydrostatic test water withdrawals to take place between November 1, 2007 and December 15, 

2007. The actual dates of withdrawal will be identified in the hydrostatic test water authorizations issued 

by the appropriate state agencies. Withdrawal rates from waterbodies will not exceed 0.5 percent of 

average monthly flow rates as identified by the U.S. Geological Survey (USGS), which is below the BLM 

recommended threshold of 5.0 percent of flow. Overland Pass will consult with the FWS and the 

appropriate state agencies to obtain approval for the timing of hydrostatic test water withdrawals. 

2.0 WATER USE AND TESTING PLAN 

Overland Pass will withdraw a maximum of approximately 37.4 million gallons (115.0 acre-feet) of water 

for hydrostatic testing of its pipeline facilities. The water will be withdrawn from the Blacks Fork River,

Green River, North Platte River, Laramie River, North Sterling Ditch of the South Platte River, private 

wells, and water storage ponds located at the existing ONEOK Bushton plant. In the event that 

withdrawals from the Blacks Fork River are too large to maintain minimum flow rates as identified by 

consulting agencies and permits, Overland Pass will obtain hydrostatic test water from the Green River

for sections 7 through 16 of Spread 1. Maps in appendix A depict the location of surface water 

withdrawal and discharge points. The pipeline testing plan will be split by construction spread and tested 

in 48 sections, as depicted in figure 2-1, Hydrostatic Test Schematic of Water Sources and Transfers. The

MP range for each construction spread is as follows: 

• Spread 1: 0.0 to 150.85 

• Spread 2: 150.85 to 285.68

• Spread 3: 285.68 to 444.20

• Spread 4: 444.20 to 598.63

• Spread 5: 598.63 to 759.82

Hydrostatic test sections have been designed to maximize the efficiency of testing activities, and will 

allow for the testing of multiple sections at once. The required amount of water from each waterbody will

be withdrawn from a single point, with single or multiple pumps. Several sections will be filled from that

water source, as outlined below. Headers will be installed on both ends of each test section, and jumper 

lines will be built between each test section to transfer water into, and out of each section (see figure 2-

1). Overland Pass will attempt to reuse hydrostatic test water from one section to the next, where 

possible. 

At the end of each successful test, water will be discharged back to the source waterbody (for Spreads 1

through 4), or at either the easternmost or westernmost end of the section into a stable upland location 

within 50-100 feet of the source waterbody using energy dissipation and filtration devices, as outlined 

above. For Spread 5 the water contained in the existing aboveground storage ponds at the existing 

ONEOK Bushton plant is groundwater taken from storage caverns, and contains some salt. Upon

completion of testing, Overland Pass will utilize a splash pup and conduct discharge activities back into 

the existing aboveground storage ponds at ONEOK’s Bushton Plant. 

5

2.1 Blacks Fork River 

2.1.1 Water Use 

A total of approximately 2.4 million gallons (7.5 acre-feet) of water will be withdrawn for hydrostatic 

testing from the Blacks Fork River at Reference MP (RMP) 41.3, within the Blacks Fork Watershed for

the hydrostatic testing of Sections 1 through 6. The maximum targeted withdrawal rate of 1000 or 3000 

GPM, dependent upon the time of withdrawal, is approximately 0.1 to 0.3 percent of the average monthly

flow based on USGS surface water flow data from 2000 through 2004 for the months of November and

December. Depending on the withdrawal rate of either 1000 or 3000 GPM, Test Sections 1 and 2 will 

require about 28.8 or 9.6 hours to fill with approximately 1,730,299 gallons of test water, while Test 

Sections 3 through 6 will require about 12.0 or 4.0 hours to fill with 717,557 gallons of test water. Of the 

total 2.4 million gallons of water required from the Blacks Fork River, the following section break downs

are proposed: 

• Section 1, approximately 490,126 gallons (MPs 0 through 12.37)* 

• Section 2, approximately 1,240,173 gallons (MPs 12.37 through 43.67)* 

• Section 3, approximately 240,506 gallons (MPs 43.67 through 49.74) 

• Section 4, approximately 217,526 gallons (MPs 49.74 through 55.23) 

• Section 5, approximately 111,338 gallons (MPs 55.23 through 58.04) 

• Section 6, approximately 148,187 gallons (MPs 58.04 through 61.78) 

*If time allows, Contractor may fill and use water from Sections 1 and 2 (490,126 + 1,240,173 = 

1,730,299 gallons) and transfer that volume to Sections 3, 4, 5, and 6 for testing. 

Each test section will require approximately 2 days for the completion of testing. If minor water leaks, air 

pockets, or stabilization problems occur, testing may take an additional day. 

2.1.2 Testing 

Test Section 1

Test Section 1 will include approximately 12.37 miles of 14-inch diameter pipe filled with approximately 

490,126 gallons of water withdrawn from the Blacks Fork River at RMP 41.3. Once the section is filled,

Overland Pass will immediately begin pressurizing the section to the required pressure of 1800 psig, then 

hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water will be

tested for potential pollutants, pushed back through pipe, and then discharged as permitted to the Blacks 

Fork River at RMP 41.3 Water will be discharged at a rate commensurate with agency consultations and 

permit requirements. 

Test Section 2

Test Section 2 will include approximately 31.3 miles of 14-inch diameter pipe filled with approximately

1,240,173 gallons of water withdrawn from the Blacks Fork River at RMP 41.3. Once the section is

filled, Overland Pass will immediately begin pressurizing the section to the required pressure of 1800 

psig, then hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water

7
will be tested for potential pollutants, pushed back through pipe, and then discharged as permitted to the 

Blacks Fork River at RMP 41.3. Water will be discharged at a rate commensurate with agency 

consultations and permit requirements. 

Test Section 3

Test Section 3 will include approximately 6.07 miles of 14-inch diameter pipe filled with approximately

240,506 gallons of water withdrawn from the Blacks Fork River at RMP 41.3. Once the section is filled,

Overland Pass will immediately begin pressurizing the section to the required pressure of 1800 psig, then 

hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water will be

tested for potential pollutants, pushed back through pipe, and then discharged as permitted to the Blacks 

Fork River at RMP 41.3. Water will be discharged at a rate commensurate with agency consultations and 

permit requirements. 

Test Section 4

Test Section 4 will include approximately 5.49 miles of 14-inch diameter pipe filled with approximately

217,526 gallons of water withdrawn from the Blacks Fork River at RMP 41.3. Once the section is filled,

Overland Pass will immediately begin pressurizing the section to the required pressure of 1800 psig, then 

hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water will be

tested for potential pollutants, pushed back through pipe, and then discharged as permitted to the Blacks 

Fork River at RMP 41.3. Water will be discharged at a rate commensurate with agency consultations and 

permit requirements. 

Test Section 5

Test Section 56 will include approximately 2.81 miles of 14-inch diameter pipe filled with approximately 

111,338 gallons of water withdrawn from the Blacks Fork River at RMP 41.3. Once the section is filled,

Overland Pass will immediately begin pressurizing the section to the required pressure of 1800 psig, then 

hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water will be

tested for potential pollutants, pushed back through pipe, and then discharged as permitted to the Blacks 

Fork River at RMP 41.3. Water will be discharged at a rate commensurate with agency consultations and 

permit requirements. 

Test Section 6

Test Section 6 will include approximately 3.74 miles of 14-inch diameter pipe filled with approximately

148,187 gallons of water withdrawn from the Blacks Fork River at RMP 41.3. Once the section is filled,

Overland Pass will immediately begin pressurizing the section to the required pressure of 1800 psig, then 

hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water will be

tested for potential pollutants, pushed back through pipe, and then discharged as permitted to the Blacks 

Fork River at RMP 41.3. Water will be discharged at a rate commensurate with agency consultations and 

permit requirements. 

2.1.3 Required Permits 

Overland Pass will contact the Wyoming State Engineer’s Office to obtain necessary permits to withdraw

water from the Blacks Fork River. The water will be discharged back to the Blacks Fork River as 

permitted, or it will be returned to an upland area within 50-100 feet of the source waterbody. A 

hydrostatic test water discharge permit will be acquired from the WDEQ prior to discharge. 

8
2.2 Green River* 

*For Sections 7-16, the Blacks Fork River will be used for hydrostatic testing withdrawal if water levels

allow. Water would then be taken from RMP 41.3 and pushed back to the Blacks Fork and discharged

into the source waterbody. If this is not possible the plan below for taking water from the Green River 

will be employed. 

2.2.1 Water Use 

A total of approximately 3.5 million gallons (10.8 acre-feet) of water will be withdrawn from the Green

River at approximate RMP 59.3 within the Upper Green - Flaming Gorge Reservoir Watershed for the

hydrostatic testing of Sections 7 through 16. The maximum targeted withdrawal rate of 1000 or 3000 

GPM, dependent upon the time of withdrawal, is less than approximately 0.01 percent of the average 

monthly flow based on USGS surface water flow data from 2000 through 2004 for the months of

November and December. Depending on the withdrawal rate of either 1000 or 3000 GPM, Test Sections 

7 through 16 will require about 58.7 or 19.6 hours to fill with approximately 3.5 million gallons of test 

water. Of the total 3.5 million gallons of water required from the Green River, the following section break 

downs are proposed: 

• Section 7, approximately 45,169 gallons (MPs 61.78 through 62.92)** 

• Section 8, approximately 42,792 gallons (MPs 62.92 through 64.0) ** 

• Section 9, approximately 91,923 gallons, (MPs 64.0 through 66.32) ** 

• Section 10, approximately 253,582 gallons (MPs 66.32 through 72.72) ** 

• Section 11, approximately 247,638 gallons (MPs 72.72 through 78.97) ** 

• Section 12, approximately 627,218 gallons (MPs 78.97 through 94.80) ** 

• Section 13, approximately 398,599 gallons (MPs 94.80 through 104.86) ** 

• Section 14, approximately 928,347 gallons (MPs 104.86 through 128.29) 

• Section 15, approximately 240,903 gallons (MPs 128.29 through 134.37) 

• Section 16, approximately 652,973 gallons (MPs 134.37 through 150.85) 

*** If time allows, Contractor may fill and use Sections 7 through 13, test these sections, then transfer the 

water (1,706,921 gallons) plus 115,302 gallons for a total of 1,822,223 gallons to Sections 14, 15, and 16

for testing. 

Each test section will require approximately 2 days for the completion of testing. If minor water leaks, air 

pockets, or stabilization problems occur, testing may take an additional day. 

2.2.2 Testing 

Test Section 7

Test Section 7 will include approximately 1.14 miles of 14-inch diameter pipe filled with approximately

45,169 gallons of water withdrawn from the Green River at RMP 59.3. Once the section is filled, 

9
Overland Pass will immediately begin pressurizing the section to the required pressure of 1800 psig, then 

hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water will be

tested for potential pollutants, pushed back through the pipe, and then discharged as permitted to the 

Green River at RMP 59.3. Water will be discharged at a rate commensurate with agency consultations

and permit requirements. 

Test Section 8

Test Section 8 will include approximately 1.08 miles of 14-inch diameter pipe filled with approximately

42,792 gallons of water at RMP 59.3. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Green River at RMP 59.3. Water 

will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 9

Test Section 9 will include approximately 2.32 miles of 14-inch diameter pipe filled with approximately

91,923 gallons of water at RMP 59.3. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Green River at RMP 59.3. Water 

will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 10

Test Section 10 will include approximately 6.4 miles of 14-inch diameter pipe filled with approximately

253,582 gallons of water at RMP 59.3. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Green River at RMP 59.3. Water 

will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 11

Test Section 11 will include approximately 6.25 miles of 14-inch diameter pipe filled with approximately 

247,638 gallons of water at RMP 59.3. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Green River at RMP 59.3. Water 

will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 12

Test Section 12 will include approximately 15.83 miles of 14-inch diameter pipe filled with

approximately 627,218 gallons of water at RMP 59.3. Once the section is filled, Overland Pass will

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, pushed back through the pipe, and then discharged as permitted to the Green River at RMP 

59.3. Water will be discharged at a rate commensurate with agency consultations and permit

requirements. 

Test Section 13

Test Section 13 will include approximately 10.06 miles of 14-inch diameter pipe filled with

approximately 398,599 gallons of water at RMP 59.3. Once the section is filled, Overland Pass will

10
immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, pushed back through the pipe, and then discharged as permitted to the Green River at RMP 

59.3. Water will be discharged at a rate commensurate with agency consultations and permit

requirements. 

Test Section 14

Test Section 14 will include approximately 23.43 miles of 14-inch diameter pipe filled with

approximately 928,347 gallons of water at RMP 59.3. Once the section is filled, Overland Pass will

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, pushed back through the pipe, and then discharged as permitted to the Green River at RMP 

59.3. Water will be discharged at a rate commensurate with agency consultations and permit

requirements. 

Test Section 15

Test Section 15 will include approximately 6.08 miles of 14-inch diameter pipe filled with approximately 

240,903 gallons of water at RMP 59.3. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Green River at RMP 59.3. Water 

will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 16

Test Section 16 will include approximately 16.48 miles of 14-inch diameter pipe filled with

approximately 652,973 gallons of water at RMP 59.3. Once the section is filled, Overland Pass will

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, pushed back through the pipe, and then discharged as permitted to the Green River at RMP 

59.3. Water will be discharged at a rate commensurate with agency consultations and permit

requirements. 

2.2.3 Required Permits 

Overland Pass will contact the Wyoming State Engineer’s Office to obtain necessary permits to withdraw

water from the Green River. The water will be discharged back to the Green River as permits allow, or it

will be returned to an upland area within 50-100 feet of the source waterbody. A hydrostatic test water 

discharge permit will be acquired from the WDEQ prior to discharge. 

2.3 North Platte River 

2.3.1 Water Use 

A total of approximately 6.8 million gallons (20.8 acre-feet) of water will be withdrawn from the North 

Platte River at approximate RMP 195.5 within the Upper North Platte Watershed for the hydrostatic 

testing of Sections 17 through 24. The maximum targeted withdrawal rate of 1000 or 3000 GPM,

dependent upon the time of withdrawal, is approximately 0.01 to 0.02 percent of the average monthly 

flow based on USGS surface water flow data from 2000 through 2004 for the months of November and

11
December. Depending on the withdrawal rate of either 1000 or 3000 GPM, Test Sections 17 through 24

will require about 113.0 or 37.7 hours to fill with approximately 6.8 million gallons of test water. Of the 

total 6.8 million gallons of water required from the North Platte River, the following section break downs 

are proposed: 

• Section 17, approximately 1,093,069 gallons (MPs 150.85 through 171.97)* 

• Section 18, approximately 1,024,235 gallons (MPs 171.97 through 191.76)* 

• Section 19, approximately 426,463 gallons, (MPs 191.76 through 200.0)* 

• Section 20, approximately 531,526 gallons (MPs 200.0 through 210.27)* 

• Section 21, approximately 897,435 gallons (MPs 210.27 through 227.61) 

• Section 22, approximately 691,449 gallons (MPs 227.61 through 240.97) 

• Section 23, approximately 984,901 gallons (MPs 240.97 through 260.0) 

• Section 24, approximately 1,128,263 gallons (MPs 260.0 through 281.8) 

* If time allows, Contractor may fill and use Sections 17 through 20, test these sections, then transfer the 

water (3,972,727 gallons) to Sections 21, 22, 23, and 24 for testing.

Each test section will require approximately 2 days for the completion of testing. If minor water leaks, air 

pockets, or stabilization problems occur, testing may take an additional day. 

2.3.2 Testing 

Test Section 17

Test Section 17 will include approximately 21.12 miles of 16-inch diameter pipe filled with

approximately 1,093,069 gallons of water withdrawn from the North Platte at RMP 195.5. Once the

section is filled, Overland Pass will immediately begin pressurizing the section to the required pressure of 

1800 psig, then hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the 

water will be tested for potential pollutants, pushed back through the pipe, and then discharged as 

permitted to the North Platte River at RMP 195.5. Water will be discharged at a rate commensurate with

agency consultations and permit requirements. 

Test Section 18

Test Section 18 will include approximately 19.79 miles of 16-inch diameter pipe filled with

approximately 1,024,235 gallons of water at RMP 195.5. Once the section is filled, Overland Pass will

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, pushed back through the pipe, and then discharged as permitted to the North Platte River at 

RMP 195.5. Water will be discharged at a rate commensurate with agency consultations and permit 

requirements. 

Test Section 19

Test Section 19 will include approximately 8.24 miles of 16-inch diameter pipe filled with approximately 

426,463 gallons of water at RMP 195.5. Once the section is filled, Overland Pass will immediately begin 

12
pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the North Platte River at RMP 195.5. 

Water will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 20

Test Section 20 will include approximately 10.27 miles of 16-inch diameter pipe filled with

approximately 531,526 gallons of water at RMP 195.5. Once the section is filled, Overland Pass will 

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, pushed back through the pipe, and then discharged as permitted to the North Platte River at 

RMP 195.5. Water will be discharged at a rate commensurate with agency consultations and permit 

requirements. 

Test Section 21

Test Section 21 will include approximately 17.34 miles of 16-inch diameter pipe filled with

approximately 897,435 gallons of water at RMP 195.5. Once the section is filled, Overland Pass will 

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, pushed back through the pipe, and then discharged as permitted to the North Platte River at 

RMP 195.5. Water will be discharged at a rate commensurate with agency consultations and permit 

requirements. 

Test Section 22

Test Section 22 will include approximately 13.36 miles of 16-inch diameter pipe filled with

approximately 691,449 gallons of water at RMP 195.5. Once the section is filled, Overland Pass will 

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, pushed back through the pipe, and then discharged as permitted to the North Platte River at 

RMP 195.5. Water will be discharged at a rate commensurate with agency consultations and permit 

requirements. 

Test Section 23

Test Section 23 will include approximately 19.03 miles of 16-inch diameter pipe filled with

approximately 984,901 gallons of water at RMP 195.5. Once the section is filled, Overland Pass will 

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, pushed back through the pipe, and then discharged as permitted to the North Platte River at 

RMP 195.5. Water will be discharged at a rate commensurate with agency consultations and permit 

requirements. 

Test Section 24

Test Section 24 will include approximately 21.8 miles of 16-inch diameter pipe filled with approximately 

1,128,263 gallons of water at RMP 195.5. Once the section is filled, Overland Pass will immediately

begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the North Platte River at RMP 195.5. 

Water will be discharged at a rate commensurate with agency consultations and permit requirements. 

13
2.3.3 Required Permits 

Overland Pass will contact the Wyoming State Engineer’s Office to obtain necessary permits to withdraw

water from the North Platte River. The water will be discharged back to the North Platte River as

permitted, or it will be returned to an upland area within 50-100 feet of the source waterbody. A 

hydrostatic test water discharge permit will be acquired from the WDEQ prior to discharge. 

2.4 Laramie River 

2.4.1 Water Use 

A total of approximately 2.5 million gallons (7.7 acre-feet) of water will be withdrawn from the Laramie 

River at approximate RMP 277.1 within the Upper Laramie Watershed for the hydrostatic testing of 

Sections 25 through 32. The maximum targeted withdrawal rate of 1000 or 3000 GPM, dependent upon

the time of year, is approximately 0.05 to 0.2 percent of the average monthly flow based on USGS surface

water flow data from 2000 through 2004 for the months of November and December. Depending on the 

withdrawal rate of either 1000 or 3000 GPM, Test Sections 25 through 32 will require about 41.7 or 13.9

hours to fill with approximately 2.5 million gallons of test water. Of the total 2.5 million gallons of water 

required from the Laramie River, the following section break downs are proposed: 

• Section 25, approximately 200,810 gallons (MPs 281.8 through 285.68)* 

• Section 26, approximately 372,120 gallons (MPs 285.68 through 292.87)** 

• Section 27, approximately 583,798 gallons (MPs 292.87 through 304.15)** 

• Section 28, approximately 168,204 gallons (MPs 304.15 through 307.4)**

• Section 29, approximately 257,223 gallons (MPs 307.4 through 312.37)**

• Section 30, approximately 371,602 gallons (MPs 312.37 through 319.55) 

• Section 31, approximately 254,636 gallons (MPs 319.55 through 324.47) 

• Section 32, approximately 293,969 gallons (MPs 324.47 through 330.15) 

* Spread 3 Contractor will fill his westerly sections from the Laramie River, using Test Section 25 to 

transfer water across Spread 2. This is required because pumping water from the North Sterling Ditch at 

elevation 4,060 ft. cannot be pumped over the 8,250 ft mountain due to the elevation difference, 

exceeding pipe pressures. 

** If time allows, Contractor may fill and use Sections 26 through 29, test these sections, then transfer the 

water (1,381,345 gallons) to Sections 30, 31, and 32 for testing. 

Each test section will require approximately 2 days for the completion of testing. If minor water leaks, air 

pockets, or stabilization problems occur, testing may take an additional day. 

2.4.2 Testing 

Test Section 25

14
Test Section 25 will include approximately 3.88 miles of 16-inch diameter pipe filled with approximately 

200,810 gallons of water withdrawn from the Laramie River at RMP 277.1. Once the section is filled, 

Overland Pass will immediately begin pressurizing the section to the required pressure of 1800 psig, then 

hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water will be

tested for potential pollutants, pushed back through the pipe, and then discharged as permitted to the 

Laramie River at RMP 277.1. Water will be discharged at a rate commensurate with agency consultations 

and permit requirements. 

Test Section 26

Test Section 26 will include approximately 7.19 miles of 16-inch diameter pipe filled with approximately 

372,120 gallons of water at RMP 277.1. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Laramie River at RMP 277.1.

Water will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 27

Test Section 27 will include approximately 11.28 miles of 16-inch diameter pipe filled with

approximately 583,798 gallons of water at RMP 277.1. Once the section is filled, Overland Pass will 

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, pushed back through the pipe, and then discharged as permitted to the Laramie River at RMP 

277.1. Water will be discharged at a rate commensurate with agency consultations and permit 

requirements. 

Test Section 28

Test Section 28 will include approximately 3.25 miles of 16-inch diameter pipe filled with approximately 

168,204 gallons of water at RMP 277.1. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Laramie River at RMP 277.1.

Water will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 29

Test Section 29 will include approximately 4.97 miles of 16-inch diameter pipe filled with approximately 

257,223 gallons of water at RMP 277.1. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Laramie River at RMP 277.1.

Water will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 30

Test Section 30 will include approximately 7.18 miles of 16-inch diameter pipe filled with approximately 

371,602 gallons of water at RMP 277.1. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1969 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Laramie River at RMP 277.1.

Water will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 31

15
Test Section 31 will include approximately 4.92 miles of 16-inch diameter pipe filled with approximately 

254,636 gallons of water at RMP 277.1. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1969 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Laramie River at RMP 277.1.

Water will be discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 32

Test Section 32 will include approximately 5.68 miles of 16-inch diameter pipe filled with approximately 

293,969 gallons of water at RMP 277.1. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1969 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants,

pushed back through the pipe, and then discharged as permitted to the Laramie River at RMP 277.1.

Water will be discharged at a rate commensurate with agency consultations and permit requirements. 

2.4.3 Required Permits 

Overland Pass will contact the Wyoming State Engineer’s Office to obtain necessary permits to withdraw

water from the Laramie River. The water will be discharged back to the Laramie River as permitted, or it 

will be returned to an upland area within 50-100 feet of the source waterbody. A hydrostatic test water 

discharge permit will be acquired from the WDEQ prior to discharge. 

2.5 South Platte River- North Sterling Ditch 

2.5.1 Water Use 

A total of approximately 5.9 million gallons (18.1 acre-feet) of water will be withdrawn from the North 

Sterling Ditch at approximate RMP 412.4 within the Middle South Platte - Sterling Watershed for the 

hydrostatic testing of Sections 33 through 38. The maximum targeted withdrawal rate of 1000 or 3000 

GPM, dependent upon the time of withdrawal, is approximately 0.01 to 0.03 percent of the average 

monthly flow based on USGS surface water flow data from 2000 through 2004 for the months of

November and December. Depending on the withdrawal rate of either 1000 or 3000 GPM, Test Sections 

33 through 38 will require about 98.4 or 32.8 hours to fill with approximately 5.9 million gallons of test 

water. Of the total 5.9 million gallons of water required from the North Sterling Ditch, the following 

section break downs are proposed: 

• Section 33, approximately 728,195 gallons (MPs 330.15 through 344.22)* 

• Section 34, approximately 896,917 gallons (MPs 344.22 through 361.55)* 

• Section 35, approximately 1,884,924 gallons (MPs 361.55 through 397.97)* 

• Section 36, approximately 939,357 gallons (MPs 397.97 through 416.12) 

• Section 37, approximately 146,467 gallons (MPs 416.12 through 418.95) 

• Section 38, approximately 1,306,818 gallons (MPs 418.95 through 444.20) 

* If time allows, Contractor may fill and use Sections 33 through 35, test these sections, then transfer the 

water (3,510,036 gallons) to Sections 36, 37, and 38 for testing. 

16
Each test section will require approximately 2 days for the completion of testing. If minor water leaks, air 

pockets, or stabilization problems occur, testing may take an additional day. 

2.5.2 Testing 

Test Section 33

Test Section 33 will include approximately 14.07 miles of 16-inch diameter pipe filled with

approximately 728,195 gallons of water from the North Sterling Ditch at RMP 412.4. Once the section is 

filled, Overland Pass will immediately begin pressurizing the section to the required pressure of 1969 

psig, then hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water

will be tested for potential pollutants, pushed back through the pipe, and then discharged as permitted to

the North Sterling Ditch at RMP 412.4. Water will be discharged at a rate commensurate with agency

consultations and permit requirements. 

Test Section 34

Test Section 34 will include approximately 17.33 miles of 16-inch diameter pipe filled with

approximately 896,917 gallons of water from the North Sterling Ditch at RMP 412.4. Once the section is 

filled, Overland Pass will immediately begin pressurizing the section to the required pressure of 1969 

psig, then hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water

will be tested for potential pollutants, pushed back through the pipe, and then discharged as permitted to

the North Sterling Ditch at RMP 412.4. Water will be discharged at a rate commensurate with agency

consultations and permit requirements. 

Test Section 35

Test Section 35 will include approximately 36.42 miles of 16-inch diameter pipe filled with

approximately 1,884,924 gallons of water from the North Sterling Ditch at RMP 412.4. Once the section

is filled, Overland Pass will immediately begin pressurizing the section to the required pressure of 1969

psig, then hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water

will be tested for potential pollutants, pushed back through the pipe, and then discharged as permitted to

the North Sterling Ditch at RMP 412.4. Water will be discharged at a rate commensurate with agency 

consultations and permit requirements. 

Test Section 36

Test Section 36 will include approximately 18.15 miles of 16-inch diameter pipe filled with

approximately 939,357 gallons of water from the North Sterling Ditch at RMP 412.4. Once the section is 

filled, Overland Pass will immediately begin pressurizing the section to the required pressure of 1969 

psig, then hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water

will be tested for potential pollutants, pushed back through the pipe, and then discharged as permitted to

the North Sterling Ditch at RMP 412.4. Water will be discharged at a rate commensurate with agency

consultations and permit requirements. 

Test Section 37

Test Section 37 will include approximately 2.83 miles of 16-inch diameter pipe filled with approximately 

146,467 gallons of water from the North Sterling Ditch at RMP 412.4. Once the section is filled, 

Overland Pass will immediately begin pressurizing the section to the required pressure of 1969 psig, then 

hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water will be

tested for potential pollutants, pushed back through the pipe, and then discharged as permitted to the 

North Sterling Ditch at RMP 412.4. Water will be discharged at a rate commensurate with agency

consultations and permit requirements. 

17
Test Section 38

Test Section 38 will include approximately 25.25 miles of 16-inch diameter pipe filled with

approximately 1,306,818 gallons of water from the North Sterling Ditch at RMP 412.4. Once the section

is filled, Overland Pass will immediately begin pressurizing the section to the required pressure of 1969

psig, then hold this pressure for an 8-hour duration. Upon satisfactory completion of the test, the water

will be tested for potential pollutants, pushed back through the pipe, and then discharged as permitted to

the North Sterling Ditch at RMP 412.4. Water will be discharged at a rate commensurate with agency

consultations and permit requirements. 

2.5.3 Required Permits 

Overland Pass will contact the Colorado State Engineer’s Office to obtain necessary permits to withdraw

water from the North Sterling Ditch. The water will be discharged back to the North Sterling Ditch as 

permitted, or it will be returned to an upland area within 50-100 feet of the source waterbody. A 

hydrostatic test water discharge permit will be acquired from the Colorado Division of Public Health and 

Environment (CDPHE) prior to discharge. 

2.6 Private Wells 

2.6.1 Water Use 

A total of approximately 8.0 million gallons (24.5 acre-feet) of water will be withdrawn from private 

wells between MPs 444.2 to 598.63 in Colorado and Kansas for the hydrostatic testing of Sections 39 

through 44. Depending on the withdrawal rate of either 1000 or 3000 GPM, Test Sections 39 through 44

will require about 133.2 or 44.4 hours to fill with approximately 8.0 million gallons of test water. Of the 

total 8.0 million gallons of water required from the private wells, the section break downs are as follows: 

• Section 39, approximately 526,350 gallons (MPs 444.2 through 454.37) 

• Section 40, approximately 1,118,947 gallons (MPs 454.37 through 475.99) 

• Section 41, approximately 1,092,034 gallons (MPs 475.99 through 497.09) 

• Section 42, approximately 2,481,143 gallons (MPs 497.09 through 545.03) 

• Section 43, approximately 2,287,062 gallons (MPs 545.03 through 589.22) 

• Section 44, approximately 487,016 gallons (MPs 589.22 through 598.63) 

Each test section will require approximately 2 days for the completion of testing. If minor water leaks, air 

pockets, or stabilization problems occur, testing may take an additional day. 

2.6.2 Testing 

The test section withdrawal MP location will change based on the exact well source locations; however,

the maximum volume will not change. If large volume wells are available and determined to have water 

rights for this temporary use, the total volume of water needed could be reduced by 50%; a minimum 

amount of 2,737,331 gallons could be used if the timing is such that sections 39, 40, and 41 can be fitted, 

tested, and moved to Section 42, tested, moved to Section 43, tested and moved to Section 44 for the final 

test. 

18
Test Section 39

Test Section 39 will include approximately 10.17 miles of 16-inch diameter pipe filled with

approximately 526,350 gallons of water. Once the section is filled, Overland Pass will immediately begin 

pressurizing the section to the required pressure of 1969 psig, then hold this pressure for an 8-hour 

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants, and

then discharged as permitted back to the source well. Water will be discharged at a rate commensurate 

with agency consultations and permit requirements. 

Test Section 40

Test Section 40 will include approximately 21.62 miles of 16-inch diameter pipe filled with

approximately 1,118,947 gallons of water. Once the section is filled, Overland Pass will immediately 

begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants, and

then discharged as permitted back to the source well. Water will be discharged at a rate commensurate 

with agency consultations and permit requirements. 

Test Section 41

Test Section 41 will include approximately 21.1 miles of 16-inch diameter pipe filled with approximately 

1,092,034 gallons of water. Once the section is filled, Overland Pass will immediately begin pressurizing

the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour duration. Upon 

satisfactory completion of the test, the water will be tested for potential pollutants, and then discharged as

permitted back to the source well. Water will be discharged at a rate commensurate with agency 

consultations and permit requirements. 

Test Section 42

Test Section 42 will include approximately 47.94 miles of 16-inch diameter pipe filled with

approximately 2,481,143 gallons of water. Once the section is filled, Overland Pass will immediately 

begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants, and

then discharged as permitted back to the source well. Water will be discharged at a rate commensurate 

with agency consultations and permit requirements. 

Test Section 43

Test Section 43 will include approximately 44.19 miles of 16-inch diameter pipe filled with

approximately 12,287,062 gallons of water. Once the section is filled, Overland Pass will immediately

begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour

duration. Upon satisfactory completion of the test, the water will be tested for potential pollutants, and

then discharged as permitted back to the source well. Water will be discharged at a rate commensurate 

with agency consultations and permit requirements. 

Test Section 44

Test Section 44 will include approximately 9.41 miles of 16-inch diameter pipe filled with approximately 

487,016 gallons of water. Once the section is filled, Overland Pass will immediately begin pressurizing

the section to the required pressure of 1800 psig, then hold this pressure for an 8-hour duration. Upon 

satisfactory completion of the test, the water will be tested for potential pollutants, and then discharged as

permitted back to the source well. Water will be discharged at a rate commensurate with agency 

consultations and permit requirements. 

19
2.6.3 Required Permits 

Overland Pass will contact the Colorado State Engineer’s Office and the Kansas Department of

Agriculture Division of Water Resources to obtain necessary permits to withdraw water. Hydrostatic test 

water discharge permits will be acquired from the CDPHE and Kansas Department of Health and 

Environment (KDHE) prior to discharge. 

2.7 Storage Ponds 

2.7.1 Water Use 

A total of approximately 8.3 million gallons (25.6 acre-feet) of water will be withdrawn from storage 

ponds at the ONEOK Bushton Plant at RMP 718.0 for the hydrostatic testing of Sections 45 through 48. 

Of the total 8.3 million gallons of water required the section break downs are as follows: 

• Section 45, approximately 1,129,298 gallons (MPs 598.63 through 620.45)* 

• Section 46, approximately 2,350,720 gallons (MPs 620.45 through 665.87)* 

• Section 47, approximately 3,142,575 gallons (MPs 665.87 through 726.59)* 

• Section 48, approximately 1,719,825 gallons (MPs 726.59 through 759.82)* 

* Since only four test sections are planned and ONEOK water is available and will be returned to the

storage ponds at Bushton, 4,862,400 gallons can be pushed to Sections 47 and 48. These sections can be 

tested and water moved to section 45 and 46. After testing of sections 45 and 46, the water will be 

returned to the storage ponds. 

Each test section will require approximately 2 days for the completion of testing. If minor water leaks, air 

pockets, or stabilization problems occur, testing may take an additional day. 

2.7.2 Testing 

Test Section 45

Test Section 45 will include approximately 21.82 miles of 16-inch diameter pipe filled with

approximately 1,129,298 gallons of water at RMP 718.0. Once the section is filled, Overland Pass will

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, and then discharged as permitted back into the source storage pond at RMP 718. Water will be 

discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 46

Test Section 46 will include approximately 45.42 miles of 16-inch diameter pipe filled with

approximately 2,350,720 gallons of water at RMP 718.0. Once the section is filled, Overland Pass will

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, and then discharged as permitted back into the source storage pond at RMP 718. Water will be 

discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 47

20
Test Section 47 will include approximately 60.72 miles of 16-inch diameter pipe filled with

approximately 3,142,575 gallons of water at RMP 718.0. Once the section is filled, Overland Pass will

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, and then discharged as permitted back into the source storage pond at RMP 718. Water will be 

discharged at a rate commensurate with agency consultations and permit requirements. 

Test Section 48

Test Section 48 will include approximately 33.23 miles of 16-inch diameter pipe filled with

approximately 1,719,825 gallons of water at RMP 718.0. Once the section is filled, Overland Pass will

immediately begin pressurizing the section to the required pressure of 1800 psig, then hold this pressure 

for an 8-hour duration. Upon satisfactory completion of the test, the water will be tested for potential

pollutants, and then discharged as permitted back into the source storage pond at RMP 718. Water will be 

discharged at a rate commensurate with agency consultations and permit requirements. 

2.7.3 Required Permits 

No permit is required to withdraw water from the storage ponds. A hydrostatic test water discharge 

permit will be acquired from the KDHE prior to discharge. 

21
HYDROSTATIC TEST PLAN 

APPENDIX A 

HYDROSTATIC TEST WATER WITHDRAWAL AND DISCHARGE LOCATION MAPS 





















































Appendix D 

Weed Management Plan 
OVERLAND PASS PIPELINE PROJECT 

WEED MANAGEMENT PLAN 

PRELIMINARY 

Prepared by: 

Natural Resource Group, Inc. 

August 2006, Rev. 2 
OVERLAND PASS PIPELINE PROJECT 

WEED MANAGEMENT PLAN 

TABLE OF CONTENTS

Section Page 

1.0 INTRODUCTION ........................................................................................................................... 1

2.0 GOALS AND OBJECTIVES.......................................................................................................... 2

3.0 NOXIOUS WEED AND INVASIVE SPECIES INVENTORY..................................................... 2

3.1 Wyoming ............................................................................................................................ 2

3.2 Colorado.............................................................................................................................. 3

3.3 Kansas ............................................................................................................................... 3

3.4 Consultations ...................................................................................................................... 3

3.5 Weed Management Areas................................................................................................... 6

4.0 NOXIOUS WEED AND INVASIVE SPECIES MANAGEMENT ............................................... 6

4.1 Identification of Problem Areas.......................................................................................... 7

4.2 Preventive Measures ........................................................................................................... 7

4.3 Treatment Methods ............................................................................................................. 8

4.4 BLM-Specific Requirements .............................................................................................. 9

4.5 Specific Requirements on the Pawnee National Grassland ................................................ 9

5.0 MONITORING................................................................................................................................ 9

6.0 HERBICIDE APPLICATION, HANDLING, SPILLS, AND CLEANUP ................................... 10

6.1 Herbicide Application and Handling ................................................................................ 10

6.2 Herbicide Spills and Cleanup............................................................................................ 11

6.3 Worker Safety and Spill Reporting................................................................................... 11

7.0 REFERENCES .............................................................................................................................. 12

List of Tables 

3.4-1 Overland Pass Pipeline Project Noxious Weed Species of Concern within the Project Area in

Wyoming ........................................................................................................................................ 3 

3.4-2 Overland Pass Pipeline Project Noxious Weed Species of Concern within the Project Area in

Colorado .......................................................................................................................................... 5 

3.4-3 Overland Pass Pipeline Project Noxious Weed Species of Concern within the Project Area in

Kansas ............................................................................................................................................. 6 

i 
Attachment List 

NOTE: Appendices to this document are intentionally not included. All available plans and attachments 

to this document can be found as part of the Draft Plan of Development found at 

www.blm.gov/wy/st/en/info/NEPA/rfodocs/overland_pipeline.html. 

A. State Laws Regarding Noxious Weeds [Provided in March 2006. To be provided again with final 

version.] 

B. Agency Correspondence [Provided in March 2006. To be provided again with final version.] 

C. Weed Survey Maps – TO BE INCLUDED WITH FINAL VERSION 

ii 
1.0 INTRODUCTION 

Noxious weed control practices for the Overland Pass Pipeline Project described in the Weed 

Management Plan (Plan) plan have been developed in consultation with the following federal land 

management agencies: 

• Bureau of Land Management (BLM), Kemmerer Field Office, Wyoming; 

• BLM, Rock Springs Field Office, Wyoming; 

• BLM, Rawlins Field Office, Wyoming; 

• U.S. Forest Service (FS), Flaming Gorge National Recreation Area, Wyoming; and 

• FS, Pawnee National Grassland, Colorado. 

Additionally, Overland Pass consulted with the County Weed and Pest Districts and Weed Control 

Supervisors for the following counties: 

• Lincoln, Wyoming 

• Sweetwater, Wyoming 

• Carbon, Wyoming 

• Albany, Wyoming 

• Laramie, Wyoming 

• Larimer, Colorado 

• Weld, Colorado 

• Morgan, Colorado 

• Logan, Colorado 

• Washington, Colorado 

• Yuma, Colorado 

• Cheyenne, Kansas 

• Rawlins, Kansas 

• Thomas, Kansas 

• Sheridan, Kansas 

• Gove, Kansas 

• Trego, Kansas 

• Ellis, Kansas 

• Russell, Kansas 

• Barton, Kansas 

• Ellsworth, Kansas 

• Rice, Kansas 

1
• McPherson, Kansas 

2.0 GOALS AND OBJECTIVES 

This Plan is intended to describe a weed management project that prescribes methods to prevent and 

control the spread of noxious weeds and other invasive species during and following construction of the 

Overland Pass Pipeline Project. Overland Pass and its Contractors will be responsible for implementing 

the methods described in this Plan. 

This Plan is applicable to the construction and operation of the proposed pipeline facilities, including the 

pipeline right-of-way, the proposed aboveground facilities, areas of extra temporary workspaces, and any 

other areas disturbed during the construction and operation of the proposed facilities. 

3.0 NOXIOUS WEED AND INVASIVE SPECIES INVENTORY 

Legally, a noxious weed is any plant officially designated by a federal, state, or county government as 

injurious to public health, agriculture, recreation, wildlife, or property (Sheley, Petroff, and Borman, 

1999). A noxious weed is also commonly defined as a plant that grows out of place (e.g., a rose can be a 

weed in a wheat field) and is "competitive, persistent, and pernicious" (James et al, 1991). Noxious 

weeds are officially designated as unwanted or undesirable. Noxious weeds are opportunistic plant 

species that readily flourish in disturbed areas, thereby preventing native plant species from establishing 

successive communities. 

Unlike “noxious species”, “invasive species" are defined as species that are non-native (or alien) to the 

ecosystem under consideration and whose introduction causes or is likely to cause economic or 

environmental harm or harm to human health. Invasive plants include not only noxious weeds, but also 

other plants that are not native to this country. The BLM considers plants invasive if they have been 

introduced into an environment where they did not evolve. As a result, they usually have no natural 

enemies to limit their reproduction and spread (Westbrooks, 1998). 

The BLM maintains a National List of Invasive Weed Species of Concern for western states that includes 

132 plant species. The BLM inventories for Colorado can be accessed at: 

http://www.co.blm.gov/botany/weedhome.htm. The BLM inventories for Wyoming can be accessed at: 

http://www.wy.blm.gov/weeds/whatis.htm. The noxious weed list for the State of Kansas can be 

accessed at: http://www.ksda.gov/Default.aspx?tabid=329. 

Not all invasive species are legally designated as noxious species. Colorado and Wyoming also maintain 

official state lists of weed species that are designated noxious species. Information on the State of 

Colorado Weed Management Program and species lists can be obtained at: 

http://www.ag.state.co.us/DPI/weeds/Weed.html. Information on the State of Wyoming Weed and Pest 

Districts and species lists can be obtained at: http://www.wyoweed.org/wp_dist.html. 

3.1 WYOMING 

Under the authority of the Wyoming Weed and Pest Control Act of 1973 (Act) (Wyoming Statute 115-

119), Wyoming has officially designated 24 plant species as noxious. Per the Act, weed control is the 

responsibility of the landowner or the owner of rights-of-way or easement. Noxious weed control is 

required at the county level. 

2
3.2 COLORADO 

Under its Colorado Weed Management Act, §§ 35-5.5-101 through 119, C.R.S. (2000), Colorado has 

officially designated 82 plant species as noxious, which are divided into three lists. Colorado State List A 

species are noxious weeds that are not common to the state and require eradication. Upon identification 

of a list A species, the State Weed Coordinator/County Weed Control Supervisor is to be notified to 

coordinate control efforts. Eighteen weed species were identified in the project area from list A. List B 

species are noxious weeds for which the state is currently developing management plans but does not 

require treatment for at this time. List C species are weed species commonly found throughout the state. 

While the state does not require treatment for species included on its Lists B and C, control of these 

species may be required at the county level. 

3.3 KANSAS 

Under the Kansas Department of Agriculture Administrative Code and Statutes, Chapter 2.--

AGRICULTURE Article 13.--WEEDS 2-1314, the treatment of noxious weeds are defined as: 

“It shall be the duty of persons, associations of persons, the secretary of transportation, the boards 

of county commissioners, the township boards, school boards, drainage boards, the governing 

body of incorporated cities, railroad companies and other transportation companies or 

corporations or their authorized agents and those supervising state-owned lands to control the 

spread of and to eradicate all weeds declared by legislative action to be noxious on all lands 

owned or supervised by them and to use such methods for that purpose and at such times as are 

approved and adopted by the Kansas department of agriculture.” 

Kansas has officially designated 17 plant species as noxious. 

3.4 CONSULTATIONS 

Through consultations with BLM and FS, the states of Wyoming, Colorado, and Kansas Departments of 

Agriculture, and the individual counties affected by the project, a list of noxious weeds of concern within 

the project area was developed and is presented in tables 3.4-1, 3.4-2, and 3.4-3. Copies of consultation 

letters, e-mail, and phone logs of conversation with the agencies are included as Attachment B of this 

Plan. 

TABLE 3.4-1 

Overland Pass Pipeline Project 

Noxious Weed Species of Concern within the Project Area in Wyoming 

Weed Species 

BLM Districts Wyoming Counties 

State List KFO RSFO RFO Lincoln 

Sweetwater Carbon Albany Laramie 

Black henbane 

Canada thistle 

Common burdock 

Common mullein 

Common Tansy 

Dalmation toadflax 

Diffuse knapweed 

Dyer's woad 

Field bindweed 

Foxtail barley 

X X X 

X X X X X X X X 

X X X X X X X X 

X X X X X X X 

X X X X X X X X 

X X X X X X X X 

X X X X X X X X 

X X X X X X X X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

3
TABLE 3.4-1 

Overland Pass Pipeline Project 

Noxious Weed Species of Concern within the Project Area in Wyoming 

Weed Species 

BLM Districts Wyoming Counties 

State List KFO RSFO RFO Lincoln 

Sweetwater Carbon Albany Laramie 

Gum weed 

Hairy goldenaster 

Halogeton 

Hoary cress (whitetop) 

Houndstongue 

Kochia 

Lady's bedstraw 

Leafy spurge 

Locoweed 

Mountain thermopsis 

Musk thistle 

Oxeye daisy 

Perennial pepperweed 

Perennial sowthistle 

Plains larkspur 

Plains pricklypear 

Plumeless thistle 

Puncturevine 

Purple loosestrife 

Quackgrass 

Russian knapweed 

Russian thistle 

Sandbur 

Salt cedar (tamarisk) 

Scotch thistle 

Skeletonleaf bursage 

Spotted knapweed 

St. Johnswort 

Viper's bugloss 

Wild licorice 

Wild oats 

Wyeth's lupine 

Yellow taodflax 

X 

X X 

X X X X X X X X 

X X X X X X X X 

X 

X 

X X X X X X X X 

X 

X 

X X X X X X X X 

X X X X X X X 

X X X X X X X X 

X X X X X X X 

X X 

X 

X X X X X X X 

X X X X X X X 

X X X X X X X 

X X X X X X X X 

X 

X X X X X X X X 

X X X X X X X 

X X X X X X X 

X X X X X X X X 

X X X X X X X 

X 

X 

X X X X X X X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

4
TABLE 3.4-2 

Overland Pass Pipeline Project 

Noxious Weed Species of Concern within the Project Area in Colorado 

Weed Species 

Colorado Counties 

State "A" 

List 

Pawnee 

National 

Grasslands Larimer Weld Morgan Logan Washington Yuma 

Absinth wormwood 

African rue 

Camelthorne 

Canada thistle 

Chinese clematis 

Common crupina 

Cypress spurge 

Dalmation toadflax 

Diffuse knapweed 

Dyer's woad 

Field bindweed 

Giant salvinia 

Hydrilla 

Hoary cress (whitetop) 

Jointed goatgrass 

Leafy spurge 

Meadow knapweed 

Mediterranean sage 

Medusahead 

Musk thistle 

Myrtle spurge 

Orange hawkweed 

Perennial pepperweed 

Plumeless thistle 

Purple loosestrife 

Rush skeletonweed 

Russian knapweed 

Salt cedar (tamarisk) 

Scotch thistle 

Sericea lespedeza 

Showy milkweed 

Silverleaf bursage 

Skeletonleaf bursage 

Spotted knapweed 

Squarrose knapweed 

Tansy ragwort 

Volunteer rye 

Woollyleaf bursage 

Yellow starthistle 

Yellow toadflax 

X X 

X 

X 

X X X X X 

X X 

X 

X 

X X X 

X X X X X 

X 

X X X X 

X 

X 

X 

X 

X X X X X 

X 

X 

X 

X X X X X 

X 

X 

X 

X X 

X X 

X 

X X X X X 

X X X 

X X 

X 

X 

X 

X X X X X 

X 

X 

X 

X 

X 

X X X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

X 

5
TABLE 3.4-3 

Overland Pass Pipeline Project 

Noxious Weed Species of Concern within the Project Area in Kansas 

Weed Species 

Kansas Counties 

State List Ellis Ellsworth 

Cheyenne, Rawlins, Thomas, Sheridan, Gove, 

Trego, Russell, Barton, Rice, McPherson 

Bull thistle 

Bur ragweed 

Canada thistle 

Common teasel 

Dalmation toadflax 

Field bindweed 

Hoary cress (whitetop) 

Johnsongrass 

Kudzu 

Leafy spurge 

Multiflora rose 

Musk thistle 

Phragmites 

Pignut 

Quackgrass 

Russian knapweed 

Salt cedar (tamarisk) 

Sericea lespedeza 

X X X 

X X X X 

X X X X 

X 

X 

X X X X 

X X X X 

X X X X 

X X X X 

X X X X 

X X X X 

X X X X 

X 

X X X X 

X X X X 

X X X X 

X 

X 

3.5 WEED MANAGEMENT AREAS 

Weed Management Areas (WMAs) are typically determined by multiple partners (e.g., federal, state, and 

local agencies, organizations, private landowners) who collectively identify the boundaries of a 

management area and work with landowners in that area to contribute to the management of a designated 

weed species. WMAs that Overland Pass consulted for the Overland Pass Pipeline Project include the 

Southeast Carbon County (Wyoming) Weed Management Area and Medicine Bow Conservation District 

Weed Management Group. WMAs are based on the location of a weed infestation or an area that is 

deemed a high priority to detect and control weeds. The parties work together to plan and budget weed 

management efforts for both long-term and seasonal needs. The Wyoming Weed and Pest Management 

Districts are currently updating their lists of noxious species and known locations; these will be compared 

with the proposed pipeline route when available. Overland Pass will consult with additional weed 

management groups, if identified. 

4.0 NOXIOUS WEED AND INVASIVE SPECIES MANAGEMENT 

The Overland Pass Pipeline Project’s weed management program is designed to: 

• identify areas supporting weeds prior to construction; 

• prevent the introduction and spread of weeds from construction equipment during 

construction; and 

• contain weed seeds and propagules by preventing segregated topsoil from being spread to 

adjacent areas or along the construction right-of-way. 

6
4.1 IDENTIFICATION OF PROBLEM AREAS 

Overland Pass will conduct surveys for weed species of concern within the project area concurrent with 

biological and botanical surveys in 2006. Maps depicting locations of the weed populations and a 

summary table identifying the weed locations by milepost will be included in Attachment C. These 

surveys will be conducted by qualified specialists. Overland Pass also identified known locations of 

weed infestations in the project area by contacting county and local weed control districts and BLM and 

FS field offices (see table 2.4-1). In addition to the areas supporting known infestations, all areas 

supporting noxious species will be delineated by the Environmental Inspectors (EI) by using color-coded 

flagging on the construction right-of-way prior to construction. The construction alignment sheets will 

identify the location of known weed infestations. Identification of existing noxious weed locations will 

alert environmental inspection and construction personnel to implement weed control measures during 

construction. 

4.2 PREVENTIVE MEASURES 

The following measures will be implemented to prevent the spread of noxious weeds. 

• Overland Pass is not planning to conduct pretreatment of noxious weeds prior to 

construction, but rather focus its efforts on containing existing weed populations (see 

Overland Pass’ agency consultation records located in Attachment B) and developing a 

long-term control plan. 

• Prior to the beginning of construction of the project, and prior to initiation of activity on 

all federal lands, all Contractor vehicles and equipment will be cleaned of soil and debris 

capable of transporting weed propagules. All contractor vehicles and equipment will be 

inspected by the EIs and may require additional cleaning if necessary prior to 

mobilization to the right-of-way. Cleaning will be conducted using methods approved by 

federal Compliance Monitors (CMs) after consultation with local environmental staff. 

• Overland Pass will install wash stations at state lines. Stations would be sited at least 

0.25 mile from perennial waterbodies. Station design and post-construction removal 

would be subject to agency approval. Stations would not be used in areas where full 

right-of-way topsoil stripping is utilized. During winter construction conditions, stations 

would utilize compressed air for weed cleaning. 

• Overland Pass may install intermediate wash stations at specified locations based on 

weed survey results, agency requirements, or other mitigating factors. 

• Areas of the right-of-way where weed infestations are identified will be clearly marked 

prior to construction. In these areas, the Contractor will conduct full right-of-way topsoil 

stripping and will stockpile cleared vegetation and segregated topsoil (see the Soil 

Stabilization and Restoration Plan for topsoil segregation requirements) along the rightof-way. The stockpiles will be maintained adjacent to the areas from which they were 

obtained to eliminate the transport of soil-borne noxious weed propagules to other areas 

along the right-of-way. During reclamation, the Contractor will return topsoil and 

vegetative material to the areas from which they were obtained. 

• The Contractor will ensure that straw bales used to construct sediment control devices or 

used as mulch applications will be certified weed free and obtained from approved 

certified sources as recommended by the County Weed and Pest Districts, Weed Control 

Supervisors, and the States of Colorado, Wyoming, and Kansas. 

7
• The Contractor will ensure that seed mixes and mulching materials utilized for 

revegetation will be certified weed free and obtained from approved certified sources as 

recommended by the States of Colorado, Wyoming, and Kansas 

4.3 TREATMENT METHODS 

Overland Pass’ objective is to assist local, county, and state noxious weed control efforts, comply with 

the requirements to prevent the spread of noxious weeds, and treat areas of the right-of-way where weed 

species form a significant portion of the vegetation community in comparison to adjacent undisturbed 

areas. Overland Pass will utilize established reclamation practices to prevent the establishment of 

noxious weeds in reclaimed construction areas and pipeline right-of-way. In the event noxious weed 

species become established in the right-of-way, Overland Pass will make good faith efforts to control 

weeds in the right-of-way and to work with adjacent landowners to prevent spread of the species to 

adjacent lands. 

Overland Pass will implement weed control measures in accordance with existing regulations and 

jurisdictional land management agency or landowner agreements and in accordance with Overland Pass’ 

construction mitigation procedures. Overland Pass intends to utilize state-certified weed control 

contractor services as recommended by the local regulatory entities. Post-construction weed control 

measures may include the application of herbicide or mechanical, and/or alternative methods. The weed 

control measure chosen will be the best method available for the time, place, and species of weed as 

mutually agreed upon by Overland Pass and the appropriate regulatory agencies. 

The Contractor will implement reclamation procedures of disturbed lands immediately following 

construction as described in the Soil Stabilization and Restoration Plan. Continuing revegetation efforts 

will ensure adequate vegetative cover to discourage the invasion of noxious weeds. In areas of severe 

weed infestation, as determined by Overland Pass’ EI(s), Overland Pass may elect to delay reclamation 

efforts and conduct intensive weed control efforts prior to implementing reclamation procedures., 

The Contractor will limit the use of fertilizer in reclaimed areas. Fertilizer will only be applied where 

specified by the jurisdictional land management agency or the property owner. 

Herbicide application is an effective means of reducing the size of weed populations. Herbicide 

applications will be conducted prior to seed maturation where possible. Applications will be controlled, 

as described in section 5.1, to minimize the impacts on the surrounding vegetation. Herbicide treatment 

methods will be based on species-specific and area-specific conditions (e.g., proximity to water, riparian 

areas, or agricultural areas, and time of year) and will be coordinated with the local counties and 

regulatory agencies. Spot herbicide applications will be the preferred option. In areas of dense 

infestation, a broader application will be used and a follow-up seeding program implemented. The timing 

of subsequent revegetation efforts will be based on the persistence of the selected herbicide. 

Mechanical methods entail the use of equipment to mow or disc weed populations. Mechanical 

treatments will be conducted prior to seed maturation where required. If such a method is used, 

subsequent seeding will be conducted to re-establish a desirable vegetative cover that will stabilize the 

soils and slow the potential re-invasion of weeds. 

Local regulatory advice will be sought for biological and alternate noxious weed control methods, which 

Overland Pass may implement through agreements with the WMAs or private landowners. 

8
4.4 BLM-SPECIFIC REQUIREMENTS 

The BLM has developed specific requirements for herbicide use on BLM-managed lands. The Final 

Environmental Impact Statement on Vegetation Treatment on BLM Lands in Thirteen Western States 

(U.S. Department of the Interior, 1991) lists 19 herbicides acceptable for use on BLM lands. Guidelines 

for the use of chemical control of vegetation on BLM lands are presented in the BLM’s Chemical Pest 

Control Manual. These guidelines require submittal of a Pesticide Use Proposal (PUP) and Pesticide 

Application Records (PARs) for the use of herbicides on BLM lands. 

The occurrence of weeds within the pipeline right-of-way will be reported to the BLM field office where 

the weeds occur. The appropriate weed control procedures, including target species, timing of control, 

method of control, and obtaining the appropriate authorizations will be determined in consultation with 

BLM personnel. Overland Pass will be responsible for providing the necessary personnel or hiring a 

Contractor to implement the weed control procedures. Overland Pass may be able to utilize cooperative 

agreements that may exist between the BLM and counties by providing the funds required for county 

personnel to implement the necessary weed control procedures. 

4.5 SPECIFIC REQUIREMENTS ON THE PAWNEE NATIONAL GRASSLAND 

Noxious weed management on PNG lands is conducted per the Noxious Weed Management Plan on the 

Arapaho and Roosevelt National Forests and Pawnee National Grassland (USDA Forest Service, 2003). 

This plan is an integrated approach to weed management and includes five components: awareness, 

prevention, inventory, treatment, and monitoring. 

The occurrence of weeds within the pipeline right-of-way on PNG lands will be reported to the PNG 

District Weed Coordinator. The appropriate weed control procedures, including target species, timing of 

control, method of control, and obtaining the appropriate authorizations will be determined in 

consultation with FS personnel. Acceptable herbicides must be listed and analyzed in a USDA Risk 

Assessment, and use of pesticides will require the submittal of a Pesticide Use Proposal Report and a 

Pesticide Use Report after application. Overland Pass will be responsible for providing the necessary 

personnel or hiring a contractor to implement the weed control procedures. 

5.0 MONITORING 

Following construction, Overland Pass will monitor the pipeline right-of-way and proposed facilities for 

weeds. In addition, Overland Pass will conduct revegetation monitoring as required by the Soil 

Stabilization and Restoration Plan. Following the end of Overland Pass’ revegetation monitoring 

program, weed infestations will be monitored as part of its operations and maintenance surveys. 

Overland Pass’ effort to reclaim areas disturbed during construction will be evaluated over a period of 5 

years. Successful reclamation performance will be based on revegetation success (e.g., cover, diversity), 

the absence of weeds or invasive plants, and the erosional stability of the construction right-of-way. 

Additionally, BLM and FS will conduct monitoring of the project area that will continue until they have 

determined revegetation is successful. 

To evaluate the success of revegetation, Overland Pass will monitor quadrants (i.e., rectangular analytical 

plots identified in the field and retrievable by GIS equipment) located in the right-of-way, and control 

quadrants located outside the right-of-way. Revegetation monitoring will occur in July during the first, 

third, and fifth years following reclamation. Plant diversity, percent cover, and other data obtained from 

the reclaimed right-of-way will be compared to vegetative data obtained from the undisturbed, naturally9
occurring vegetative populations adjacent to the right-of-way. Variation between plots will provide a 

quantitative indication of the relative success of reclamation. 

Initially, Overland Pass will conduct weed management surveys and control measures for 5 years 

following construction. In areas where weed infestations still require management, surveys and control 

measures will be implemented where problem areas still exist. The Rawlins BLM Office has recently 

revised its RMP to state that the goal of post-construction weed control is to maintain a 0 percent 

threshold for weed occurrences along new rights-of-way. Overland Pass is committed to make a good 

faith effort in meeting this objective. 

To conduct weed monitoring, Overland Pass will use a team composed of a vegetative specialist and a 

weed expert to survey annually in July. Overland Pass will consult with the appropriate regulatory 

agencies prior to initiating the surveys, to determine appropriate locations. Overland Pass will obtain 

landowner permission prior to conducting surveys. Landowners will be consulted regarding weed control 

status and implementation measures, and will be encouraged to report concerns to Overland Pass. 

Landowners can contact Overland Pass by talking with their specified land agent, calling Overland Pass, 

or by submitting an electronic comment on Overland Pass’ website. 

Overland Pass will prepare annual reclamation monitoring reports. These reports may include 

information such as: 

• a summary of the general vegetative cover and diversity between the right-of-way and the 

comparison with off right-of-way vegetation quadrants; 

• an assessment of the condition of transplants in riparian areas; 

• photographs; 

• identification of areas that require remedial action; 

• recommendations and schedule for remedial action(s); or 

• monitoring forms. 

Copies of these monitoring reports will be kept on file with Overland Pass and will be provided annually 

to appropriate agency personnel. 

6.0 HERBICIDE APPLICATION, HANDLING, SPILLS, AND CLEANUP 

6.1 HERBICIDE APPLICATION AND HANDLING 

Herbicide application will be based on information gathered from the local Weed Districts and federal 

agencies. Before application, Overland Pass or its Contractor will obtain any required permits from the 

local Weed Districts and/or the federal agencies. A licensed Contractor will perform the application in 

accordance with applicable laws and regulations. 

All herbicide applications will follow United States Environmental Protection Agency label instructions. 

Application of herbicides will be suspended when any of the following conditions exists: 

• wind velocity exceeds 6 miles per hour (mph) during application of liquid or granular 

herbicides; 

• snow or ice covers the foliage of noxious weeds; or 

10
• precipitation is occurring or is imminent. 

Vehicle-mounted sprayers (e.g., handgun, boom, injector) will be used mainly in open areas that are 

readily accessible by vehicle. Hand application methods (e.g., backpack spraying) that target individual 

plants will be used to treat small or scattered weed populations in rough terrain. Calibration checks of 

equipment will be conducted at the beginning of spraying and periodically to ensure that proper 

application rates are achieved. 

Herbicides will be transported to the project site daily with the following provisions: 

• on-site herbicide quantities will be limited where practical; 

• concentrate will be transported in approved containers only and in a manner that will 

prevent tipping or spilling, and in a compartment that is isolated from food, clothing, and 

safety equipment; 

• mixing will be conducted in an upland area and at a distance greater than 100 feet from 

open or flowing water, wetlands, greater than 200 feet from private wells and greater than 

400 feet from public wells; and 

• all herbicide equipment and containers will be inspected for leaks daily. 

6.2 HERBICIDE SPILLS AND CLEANUP 

Overland Pass is developing a Spill Preservation, Containment, and Control (SPCC) Plan that 

incorporates all reasonable precautions to be taken to avoid herbicide spills. In the event of a spill, 

cleanup will be immediate. Contractors will keep spill kits in their vehicles and in herbicide storage areas 

to allow for quick and effective response to spills. Items to be included in the spill kit are: 

• protective clothing and gloves; 

• a minimum of 20 pounds of suitable commercial adsorbent and barrier materials; 

• plastic bags and bucket; 

• shovel; 

• fiber brush and screw-in handle; 

• dust pan; 

• caution tape; and 

• detergent. 

Response to an herbicide spill will vary depending on the material spilled, and the size and location of the 

spill. The order of priorities after discovering a spill are to protect the safety of personnel and the public, 

minimize damage to the environment, and conduct cleanup and remediation activities. 

6.3 WORKER SAFETY AND SPILL REPORTING 

All herbicide Contractors will obtain and have readily available copies of the appropriate material safety 

data sheets and the herbicide labels for the herbicides used. All herbicide spills will be reported in 

accordance with applicable laws and requirements. Further information regarding spill response and 

reporting can be found in the SPCC Plan. 

11
7.0 REFERENCES 

Bauer, G. 2006. Email dated February 13, from G. Bauer (U.S. Department of Agriculture - Barton 

County, KS) to S. Donovan (Natural Resource Group, Inc.). 

Beaver, L. 2005. Telephone communication on December 27, between L. Hughes (Natural Resource 

Group, Inc.) and L. Beaver (Rice County Weed Department). 

Beesley, M. 2005. Telephone communication on December 22, between L. Hughes (Natural Resource 

Group, Inc.) and M. Beesley (Gove County Noxious Weed Department). 

Bliss, T. 2005. Telephone communication on December 27, between L. Hughes (Natural Resource Group, 

Inc.) and T. Bliss (Rawlins County Weed Department). 

Booten, T. 2006. Telephone communication on January 26, between L. Hughes (Natural Resource Group, 

Inc.) and T. Booten (Weld County Weed Division). 

Bosley, D. 2006. Telephone communication on January 25, between L. Hughes (Natural Resource Group, 

Inc.) and D. Bosley (Morgan County Coop Extension). 

Buhler, R. 2006. Telephone communication on January 25, between L. Hughes (Natural Resource Group, 

Inc.) and R. Buhler (Logan County Coop Extension). 

Bureau of Land Management - Noxious Weed Inventory for Colorado (12/2004): 

http://www.co.blm.gov/botany/weedhome.htm. 

Bureau of Land Management - Noxious Weed Inventory for Wyoming (12/2004): 

http://www.wy.blm.gov/weeds/whatis.htm. 

Cawthra, L. 2006. Telephone communication on February 6, between L. Hughes (Natural Resource 

Group, Inc.) and L. Cawthra (Albany County Weed and Pest Control District). 

Chegwidden, P. 2006. Email dated February 7, from P. Chegwidden (U.S. Department of Agriculture – 

Ellsworth County, KS) to S. Donovan (Natural Resource Group, Inc.). 

Colorado County Weed Lists (01/2006)

 http://www.ag.state.co.us/csd/weeds/mapping/counties 

Cotterman, J. 2006. Telephone communication on February 6, between L. Hughes (Natural Resource 

Group, Inc.) and J. Cotterman (Sweetwater County Weed and Pest Control District). 

Cronk, Q., and J. Fuller. 1995. Plant Invaders: The threat to natural ecosystems. Chapman & Hall. New 

York 

Fabritzius, C. 2005. Telephone communication on December 27, between L. Hughes (Natural Resource 

Group, Inc.) and C. Fabritzius (Trego County Noxious Weed Department). 

Glennon, J. 2005. Telephone communication on December 16, between K. Aarsby-Kail (Natural 

Resource Group, Inc.) and J. Glennon (Bureau of Land Management – Rock Springs Field Office). 

Hedberg, D. 2005. Telephone communication on December 27, between L. Hughes (Natural Resource 

Group, Inc.) and D. Hedberg (McPherson County Weed Department). 

Humphrey, B. 2006. Telephone communication on February 15, between K. Aarsby-Kail (Natural 

Resource Group, Inc.) and B. Humphrey (U.S. Forest Service, Pawnee National Grasslands). 

James, L., J. Evans, M. Ralphs, and R. Child, editors.1991. Noxious Range Weeds. Westview Press. 

Boulder, CO. 

12
Justeson, L. 2006. Telephone communication on February 6, between L. Hughes (Natural Resource 

Group, Inc.) and L. Justeson (Carbon County Weed and Pest Control District). 

Kansas Department of Agriculture, Article 13, Weeds 

http://www.kslegislature.org/legsrv-statutes/getStatute.do?number=289 

Kansas Department of Agriculture Noxious Weed List (01/2006) 

http://www.ksda.gov/Default.aspx?tabid=329 

Korobka, G. 2005. Telephone communication on December 27, between L. Hughes (Natural Resource 

Group, Inc.) and G. Korobka (Ellis County Weed Department). 

Kraich, R. 2006. Telephone communication on January 27, between L. Hughes (Natural Resource Group, 

Inc.) and R. Kraich (Washington County Weed Department). 

Larimer County Colorado, Regulated Weed List (8/2006) 

http://www.larimer.org/publicworks/weeds/weeds.htm 

Lewis, J. 2006. Email dated February 9, from J. Lewis (U.S. Department of Agriculture – Sweetwater 

County) to S. Donovan (Natural Resource Group, Inc.). 

MacNamee, S. 2006. Telephone communication on February 6, between L. Hughes (Natural Resource 

Group, Inc.) and S. MacNamee (Laramie County Weed and Pest Control District). 

Nield, S. 2006. Telephone communication on February 6, between L. Hughes (Natural Resource Group, 

Inc.) and S. Nield (Lincoln County Weed and Pest Control District). 

Noxious Weed List for Colorado (12/2004) 

http://www.ag.state.co.us/DPI/weeds/mapping/CommonNameList.htm 

Ptacek, K. 2005. Telephone communication on December 22, between L. Hughes (Natural Resource 

Group, Inc.) and K. Ptacek (Thomas County Weed Department). 

Purdy, L. 2005. Telephone communication on December 27, between L. Hughes (Natural Resource 

Group, Inc.) and L. Purdy (Russell County Weed Department). 

Raish, F. 2006. Telephone communication on January 25, between L. Hughes (Natural Resource Group, 

Inc.) and F. Raish (Yuma County Weed Department). 

Rules and Regulations Pertaining to the Administration and Enforcement of the Colorado Weed 

Management Act http://www.ag.state.co.us/DPI/weeds/statutes/weedrules.pdf 

Schlittenhardt, D. 2005. Telephone communication on December 27, between L. Hughes (Natural 

Resource Group, Inc.) and D. Schlittenhardt (Cheyenne County Weed Department). 

Schwarz, B. 2005. Telephone communication on December 27, between L. Hughes (Natural Resource 

Group, Inc.) and B. Schwarz (Sheridan County Weed Department). 

Seeger, K. 2005. Telephone communication on December 27, between L. Hughes (Natural Resource 

Group, Inc.) and K. Seeger (Graham County Weed Department). 

Sheets, J. 2005. Telephone communication on December 27, between L. Hughes (Natural Resource 

Group, Inc.) and J. Sheets (Barton County Weed Department). 

Sheley, R.,J. Petroff, M.. Borman, 1999. Introduction to Biology and Management of Noxious Rangeland 

Weeds, Corvallis, OR. 

Shute, T. 2005. Telephone communication on December 27, between L. Hughes (Natural Resource 

Group, Inc.) and T. Shute (Ellsworth County Weed Department). 

13
U.S. Department of Agriculture, Forest Service. 2003. Decision Notice and Finding of No Significant 

Impact on Noxious Weed Management Plan for the Arapaho and Roosevelt National Forests and 

Pawnee National Grassland. Colorado. 

U.S. Department of Agriculture, Plant Industry Division, 8 CCR 1203-19, Rules Pertaining to the 

Administration and Enforcement of the Colorado Noxious Weed Act 

http://www.ag.state.co.us/CSD/Weeds/statutes/weedrules.pdf 

U.S. Department of the Interior, 1991. Final Environmental Impact Statement on Vegetation Treatment 

on BLM Lands in Thirteen Western States. Washington, DC. 

Westbrooks, R. 1998. Invasive plants, changing the landscape of America: Fact book. Federal Interagency 

Committee for the Management of Noxious and Exotic Weeds. Washington, DC. 

Wyoming Weed and Pest Council http://www.wyoweed.org/ 

14
ATTACHMENTS 

Appendices to the Weed Management Plan intentionally not included in the 

Overland Pass EIS 
Appendix E 

Comparison of Route Alternatives 
Appendix E Comparison of Route Alternatives in the Rock Springs, Wyoming Area 

Note: In this table, route alternatives are compared from RP 27 to RP 120 to facilitate direct comparison. This area differs from the segment used for comparison in Chapter 2 between the Proposed Action 

and the Southern Energy Corridor – Copper Ridge Bypass Alternative. 

Factor Proposed Action Northern Route I-80 Route 

Southern Routes 

South A South B 

Length (miles) 93.3 miles 107.7 miles 101.5 miles 97.5 miles 98.9 miles Pumping Requirements (number of pump stations; number of pumps; hp; electrical power requirements; acreage required) 

Base Case 147.85 HP 

2,940.08 KWH 

64.66 HP 

1,285.75 KWH 

29.54 HP 

587.25 KWH 

42.48 HP 

844.6 KWH 

Valves (number; probable locations; accessibility issues) 

12 14 13 12 12 

Side-slope Construction (slope class and miles) Steep slopes = 30% or greater 

<10%: 3.38 

10% :0.76 20%: 1.52 

30%: 0 

Total: 5.66 

<10%: 12.71 

10%: 1.7 

20%: 0.11 30%: 0.13 

Total: 14.65 

<10%: 11.52 

10%: 1.14 20%: 0.98 30%: 0.38 

Total: 13.02 

<10%: 9.69 

10%: 1.81 20%: 1.78 30%: 0.09 

Total: 13.37 

<10%: 8.37 

10%: 1.43 20%: 1.67 30%: 0.09 

Total: 11.56 

Additional surface disturbance associated with side slope construction 

17 acres 45 acres 40 acres 41 acres 35 acres 

TUAs (list of anticipated EWS areas for wash crossings, road crossings, truck turnarounds, storage sites, and approximate acres) a 

Truck turnarounds: 6.5 acres Roads: 35.1 acres Waterbody <25’: 219.0 acres Waterbody 50’ > 100’: 23.0 acres 

Truck turnarounds: 9.6 acres Roads: 48.2 acres Waterbody < 25’: 104.7 acres Waterbody 50’ > 100’: 121.7 acres 

Truck turnarounds: 7.2 acres Roads: 50.9 acres Waterbody < 25’: 152.9 acres Waterbody 50’ > 100’: 36.7 acres 

Truck turnarounds: 6.5 acres Roads: 50.9 acres 

Truck turnarounds: 6.9 acres Roads: 50.9 acres 

Waterbody < 25’: 175.2 acres 

Waterbody 50’ > 100’: 32.1 acres 

Duration of construction (months; if multiple years would be required, state this clearly) 

5 months 6 months 7 months 6 months 5 months 

Number of spreads (number) 1 1 1 1 1 Workforce (number of workers) 296 326 355 326 296 Waterbody crossings Interm: 160 

Peren: 10 

Total: 170 

Interm: 76 

Peren: 53 

Total: 129 

Interm: 111 

Peren: 16 

Total: 127 

Interm: 131 

Peren: 14 

Total: 145 

Road crossings Paved: 19 

Gravel/ Dirt: 32 Paved roads to be bored; smaller, unpaved roads (e.g., gravel, dirt) to be open cut. 

Paved: 26 Gravel/ Dirt: 44 Same crossing methods as proposed action. 

Paved: 31 Gravel/ Dirt: 43 Same crossing methods as proposed action. 

Paved: 14 Gravel/ Dirt: 60 Same crossing methods as proposed action. 

Paved:16 Gravel/ Dirt: 58 Same crossing methods as proposed action. 

Foreign line crossings (number) Desktop: 15 

Actual estimated: 87 

Desktop: 17 

Actual estimated: 99 

Desktop: 15 

Actual estimated: 87 

Desktop: 12 

Actual estimated: 70 

Desktop: 13 

Actual estimated: 76 

Federal land ownership (miles; acres) 

Federal (BLM, FS, and BOR): 39.6 miles, 360.0 acres 

Federal (BLM and BOR): 57.3 miles, 520.9 acres 

Federal (BLM, FS, and BOR): 42.8 miles, 389.1 acres 

Federal (BLM, FS, and BOR): 48.2 miles, 438.1 acres 

Federal (BLM, FS, and BOR): 47.2 miles, 429.1 acres 

Access Roads Required (number) 51 70 74 74 74 

E-1 
Appendix E Comparison of Route Alternatives in the Rock Springs, Wyoming Area 

Factor Proposed Action Northern Route I-80 Route 

Southern Routes 

South A South B 

Pipe Storage / Contractor yards (number required; acres; locations) 

4-53 acres 4-53 acres 4-53 acres 4-53 acres 4-53 acres 

Hydrostatic Test water (sources and approx gallons) 

5,682,000 6,559,000 6,182,000 5,936,000 6,026,000 

OPPs Cost (installation $) $48.9 $57.9 $59.2 $53.2 $53.3 Constructability Constraints/Issues (describe) 

None More steep areas Rock Springs Cooper Ridge More steep areas 

Geological Hazards Geologic hazards such as seismic events, landslides/steep slopes, subsidence, flooding/scour, avalanches, volcanism, and expansive soils were reviewed along 

each of the alternative routes. All of the routes would encounter similar potential geological hazards and conditions as that identified along the proposed route (see EIR 7), with the exception of landslides and subsidence. The Southern “A” route would have an elevated landslide risk due to the Circle Creek Canyon 

crossing near South Baxter. The Northern route would cross several miles of active trona mining. The I-80 route would be located near mined out coal areas with known subsidence. 

Poor Reclamation Potential All routes would cross soil types with the potential for poor reclamation. Regardless of its final preferred location, Overland Pass would use industry standards to 

construct the pipeline (e.g., separating topsoil from subsoil, as necessary, to avoid soil mixing), and would implement its Soil Stabilization and Restoration Plan at 

all locations, the reclamation and restoration mitigation measures outlined in its Plan of Development for federal lands, and site-specific reclamation and 

restoration mitigation measures developed for the project. 

HCAs crossed or potentially affected (miles) 

Drinking Water: 7.95 

Ecological Areas: 7.65 

Populated Areas: 3.94 

Drinking Water: 8.33 

Ecological Areas: 3.11 

Populated Areas: 4.58 

Drinking Water: 7.95 

Ecological Areas: 3.83 

Populated Areas: 13.33 

Drinking Water: 3.26 

Ecological Areas: 7.58 

Populated Areas: 4.13 

Drinking Water: 3.26 

Ecological Areas: 7.58 

Populated Areas: 4.13 

Occupied structures within 500 feet of ROW b 

3 40 233 14 14 

Other relevant factors Route would cross an urban 

residential area and water holding ponds. 

Routes would cross high, difficult terrain 

aSee Waterbody crossings and Road crossings for number. All temporary use area (TUA) calculations are represented in acres and assume the following: 

Intermittent streams were calculated using Open-cut <25 feet wide dimensions (200 feet x 50 feet + 200 feet x 100 feet), assuming four TUAs at each crossing. Perennial streams were calculated using Open-cut 50 > 100 feet wide dimensions (250 feet x 75 feet + 250 feet x 125 feet), assuming four TUAs at each crossing. 

Road crossings were calculated using Two-lane roads dimensions (200 feet x 75 feet), assuming two TUAs at each crossing. 

Truck turnarounds were calculated using Stringing truck turnaround dimensions (100 feet x 150 feet), assuming one TUA every approximately 5 miles. 

bOccupied structures based on review of Overland Pass’ Snap Map (proposed route) and aerial photos. Not all occupied structures are residences but display potential recent activity (e.g., buildings 

related to oil and gas exploration or development activities). 

E-2 
Appendix F 

Waterbody Crossing Tables 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

Wyoming 

0.6 Roberson Ditch I <50 3B Open Cut No No 

0.8 Tributary to Hams Fork River I <50 2AB Open Cut No No 

0.9 Hams Fork River P 50 3B Open Cut No No 

1.1 Tributary to Hams Fork River b I <50 2AB Open Cut No No 

1.2 Tributary to Hams Fork River b I <50 2AB Open Cut No No 

1.5 South Side Ditch I <50 3B Open Cut No No 

1.8 Tributary to South Side Ditch I <50 3B Open Cut No No 

2.9 Tributary to Roberson Creek b I <50 3B Open Cut No No 

3.1 Roberson Creek b I <50 4A Open Cut No No 

3.5 Tributary to Roberson Creek I <50 3B Open Cut No No 

3.7 Tributary to Roberson Creek b I <50 3B Open Cut No No 

4.0 Tributary to Roberson Creek b I <50 3B Open Cut No No 

4.2 Tributary to Roberson Creek b I <50 3B Open Cut No No 

4.4 Tributary to Roberson Creek b I <50 3B Open Cut No No 

4.8 Tributary to Roberson Creek I <50 3B Open Cut No No 

5.7 Tributary to Roberson Creek b I <50 3B Open Cut No No 

5.8 Tributary to Roberson Creek b I <50 3B Open Cut No No 

6.2 Tributary to Roberson Creek I <50 3B Open Cut No No 

6.8 Tributary to Roberson Creek I <50 3B Open Cut No No 

7.1 Tributary to Roberson Creek b I <50 3B Open Cut No No 

7.2 Tributary to Roberson Creek b I <50 3B Open Cut No No 

7.3 Tributary to Roberson Creek b I <50 3B Open Cut No No 

7.5 Tributary to Roberson Creekb I <50 3B Open Cut No No 

7.8 Tributary to Roberson Creek I <50 3B Open Cut No No 

7.9 Tributary to Roberson Creek I <50 3B Open Cut No No 

8.5 Roberson Creek b I <50 4A Open Cut No No 

9.7 Tributary to Dry Muddy Creek b I <50 3B Open Cut No No 

10.3 Tributary to Dry Muddy Creek I <50 3B Open Cut No No 

10.5 Tributary to Dry Muddy Creek I <50 3B Open Cut No No 

10.9 Tributary to Dry Muddy Creek I <50 3B Open Cut No No 

12.6 Tributary to Dry Muddy Creek b I <50 3B Open Cut No No 

12.9 Tributary to Dry Muddy Creek b I <50 3B Open Cut No No 

13.8 Tributary to Dry Muddy Creek I <50 3B Open Cut No No 

13.9 Tributary to Dry Muddy Creek I <50 3B Open Cut No No 

14.1 Tributary to Dry Muddy Creek I <50 3B Open Cut No No 

14.9 Tributary to Dry Muddy Creek I <50 3B Open Cut No No 

15.4 Tributary to Dry Muddy Creek I <50 3B Open Cut No No 

15.7 Tributary to Dry Muddy Creek I <50 3B Open Cut No No 

15.8 Dry Muddy Creek I <50 3B Open Cut No No 

16.2 Tributary to Dry Muddy Creek b I <50 3B Open Cut No No 

16.9 Tributary to Dry Muddy Creek I <50 3B Open Cut No No 

17.4 Tributary to Dry Muddy Creek b I <50 3B Open Cut No No 

18.9 Blacks Fork River P >100 2AB Open Cut Fecal 

Coliform No 

20.2 Tributary to Blacks Fork River I <50 3B Open Cut No No 

20.6 Tributary to Blacks Fork River I <50 3B Open Cut No No 

21.3 Porter Hollow Draw I <50 3B Open Cut No No 

F-1 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

21.4 Porter Hollow Draw I <50 3B Open Cut No No 

22.0 Telephone Draw b I <50 3B Open Cut No No 

23.1 Tributary to Blacks Fork River I <50 3B Open Cut No No 

24.4 Tributary to Blacks Fork River I <50 3B Open Cut No No 

25.9 Tributary to Blacks Fork River I <50 3B Open Cut No No 

26.0 Tributary to Blacks Fork River I <50 3B Open Cut No No 

27.9 Tributary to Blacks Fork River b I <50 3B Open Cut No No 

28.4 Tributary to Blacks Fork River b I <50 3B Open Cut No No 

28.5 Tributary to Blacks Fork River b I <50 3B Open Cut No No 

29.4 Tributary to Spider Creek I <50 3B Open Cut No No 

30.2 Tributary to Spider Creek b I <50 3B Open Cut No No 

31.4 Tributary to Spider Creek I <50 3B Open Cut No No 

32.6 Tributary to Spider Creek b I <50 3B Open Cut No No 

34.0 Tributary to Spider Creek b I <50 3B Open Cut No No 

35.4 Tributary to Meadow Springs 

Wash b I <50 3B Open Cut No No 

35.8 Tributary to Meadow Springs 

Wash b I <50 3B Open Cut No No 

36.8 Tributary to Meadow Springs 

Wash I <50 3B Open Cut No No 

38.2 Tributary to Meadow Springs 

Wash I <50 3B Open Cut No No 

38.5 Tributary to Meadow Springs 

Wash I <50 3B Open Cut No No 

38.5 Tributary to Meadow Springs 

Wash I <50 3B Open Cut No No 

38.9 Tributary to Meadow Springs 

Wash I <50 3B Open Cut No No 

40.6 Tributary to Blacks Fork River I <50 3B Open Cut No No 

41.3 Blacks Fork River P >100 2AB Open Cut No No 

44.5 Tributary to Blacks Fork River b I <50 3B Open Cut No No 

44.9 Tributary to Blacks Fork River b I <50 3B Open Cut No No 

47.2 Tributary to Blacks Fork River I <50 3B Open Cut No No 

49.2 Tributary to Telephone Canyon I <50 3B Open Cut No No 

49.8 Tributary to Telephone Canyon I <50 3B Open Cut No No 

50.2 Tributary to Telephone Canyon I <50 3B Open Cut No No 

50.9 Tributary to Telephone Canyon I <50 3B Open Cut No No 

51.2 Telephone Canyon I <50 3B Open Cut No No 

51.5 Tributary to Telephone Canyon b I <50 3B Open Cut No No 

53.6 Tributary to Green River P <50 3B Open Cut No No 

55.7 Logan Draw b P <50 4A Open Cut No No 

55.8 Tributary to Logan Draw b P <50 4A Open Cut No No 

59.3 Green River b P 100 <x< 400 1 Open Cut No Class 1 

65.1 Tributary to Little Bitter Creek b P <100 2C Open Cut No No 

66.1 Little Bitter Creek b P <100 2C Open Cut No No 

67.9 Tributary to Rock Canyon b I <50 3B Open Cut No No 

68.2 Tributary to Rock Canyon b I <50 3B Open Cut No No 

68.6 Tributary to Rock Canyon I <50 3B Open Cut No No 

69.5 Tributary to Rock Canyon I <50 3B Open Cut No No 

69.6 Rock Canyon I <50 3B Open Cut No No 

71.5 Tributary to Sweetwater Creek I <50 3B Open Cut No No 

72.2 Tributary to Sweetwater Creek I <50 3B Open Cut No No 

F-2 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

72.9 Sweetwater Creek b I <50 3B Open Cut No No 

73.8 Unnamed Creek I <50 3B Open Cut No No 

74.3 Unnamed Creek I <50 3B Open Cut No No 

76.1 Unnamed Creek I <50 3B Open Cut No No 

76.5 Unnamed Creek I <50 3B Open Cut No No 

76.5 Unnamed Creek I <50 3B Open Cut No No 

77.2 Unnamed Creek I <50 3B Open Cut No No 

77.2 Unnamed Creek I <50 3B Open Cut No No 

77.3 Unnamed Creek b I <50 3B Open Cut No No 

77.9 Unnamed Creek b I <50 3B Open Cut No No 

77.9 Unnamed Creek b I <50 3B Open Cut No No 

78.5 Tributary to Salt Wells Creek I <50 3B Open Cut No No 

78.5 Tributary to Salt Wells Creek I <50 3B Open Cut No No 

80.0 Tributary to Salt Wells Creek b I <50 3B Open Cut No No 

80.7 Tributary to Salt Wells Creek I <50 3B Open Cut No No 

80.8 Tributary to Salt Wells Creek I <50 3B Open Cut No No 

80.9 Tributary to Salt Wells Creek I <50 3B Open Cut No No 

81.3 Tributary to Salt Wells Creek I <50 3B Open Cut No No 

81.5 Tributary to Salt Wells Creek b I <50 3B Open Cut No No 

81.6 Tributary to Salt Wells Creek I <50 3B Open Cut No No 

81.6 Tributary to Salt Wells Creek I <50 3B Open Cut No No 

82.2 Tributary to Salt Wells Creek I <50 3B Open Cut No No 

82.7 Salt Wells Creek b I <50 3B Open Cut No No 

83.0 Tributary to Salt Wells Creek b I <50 3B Open Cut No No 

83.4 Tributary to Salt Wells Creek b I <50 3B Open Cut No No 

83.5 Tributary to Salt Wells Creek b I <50 3B Open Cut No No 

83.8 Tributary to Salt Wells Creek b I <50 3B Open Cut No No 

84.1 Tributary to Salt Wells Creek b I <50 3B Open Cut No No 

84.5 Tributary to Salt Wells Creek b I <50 3B Open Cut No No 

84.7 Tributary to Salt Wells Creek b I <50 3B Open Cut No No 

84.8 Tributary to Salt Wells Creek b I <50 3B Open Cut No No 

85.2 Tributary to Cutthroat Draw I <50 3B Open Cut No No 

85.2 Tributary to Cutthroat Draw I <50 3B Open Cut No No 

85.4 Tributary to Cutthroat Draw I <50 3B Open Cut No No 

85.6 Tributary to Cutthroat Draw I <50 3B Open Cut No No 

85.7 Tributary to Cutthroat Draw I <50 3B Open Cut No No 

85.9 Tributary to Cutthroat Draw b I <50 3B Open Cut No No 

86.5 Tributary to Cutthroat Draw b I <50 3B Open Cut No No 

86.6 Tributary to Cutthroat Draw b I <50 3B Open Cut No No 

87.1 Tributary to Cutthroat Draw b I <50 3B Open Cut No No 

87.3 Tributary to Cutthroat Draw I <50 3B Open Cut No No 

87.4 Tributary to Cutthroat Draw I <50 3B Open Cut No No 

87.5 Cutthroat Draw I <50 3B Open Cut No No 

87.5 Cutthroat Draw I <50 3B Open Cut No No 

87.6 Cutthroat Draw I <50 3B Open Cut No No 

87.7 Cutthroat Draw I <50 3B Open Cut No No 

88.1 Cutthroat Draw b I <50 3B Open Cut No No 

88.9 Tributary to Black Butte Creek I <50 3B Open Cut No No 

89.3 Tributary to Black Butte Creek I <50 3B Open Cut No No 

89.6 Tributary to Black Butte Creek I <50 3B Open Cut No No 

F-3 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

90.1 Tributary to Black Butte Creek I <50 3B Open Cut No No 

90.4 Tributary to Black Butte Creek b I <50 3B Open Cut No No 

91.0 Tributary to Black Butte Creek I <50 3B Open Cut No No 

91.2 Tributary to Black Butte Creek I <50 3B Open Cut No No 

91.4 Tributary to Black Butte Creek I <50 3B Open Cut No No 

91.7 Tributary to Black Butte Creek b I <50 3B Open Cut No No 

92.2 Tributary to Black Butte Creek b I <50 3B Open Cut No No 

92.6 Tributary to Black Butte Creek b I <50 3B Open Cut No No 

92.9 Tributary to Black Butte Creek I <50 3B Open Cut No No 

93.3 Tributary to Black Butte Creek I <50 3B Open Cut No No 

93.9 Unnamed Creek b I <50 3B Open Cut No No 

95.0 Unnamed Creek b I <50 3B Open Cut No No 

97.7 Tributary to Patrick Draw I <50 3B Open Cut No No 

98.3 Tributary to Patrick Draw b I <50 3B Open Cut No No 

98.8 Tributary to Patrick Draw b I <50 3B Open Cut No No 

100.0 Tributary to Patrick Draw b I <50 3B Open Cut No No 

101.0 Tributary to Patrick Draw b I <50 3B Open Cut No No 

102.1 Patrick Draw I <50 4A Open Cut No No 

102.4 Tributary to Patrick Draw I <50 3B Open Cut No No 

103.0 Tributary to Bitter Creek b I <50 3B Open Cut No No 

103.8 Tributary to Bitter Creek I <50 3B Open Cut No No 

104.3 Tributary to Bitter Creek b I <50 3B Open Cut No No 

104.4 Tributary to Bitter Creek b I <50 3B Open Cut No No 

104.8 Tributary to Bitter Creek I <50 3B Open Cut No No 

105.0 Tributary to Bitter Creek I <50 3B Open Cut No No 

105.5 Tributary to Bitter Creek I <50 3B Open Cut No No 

105.6 Tributary to Bitter Creek b I <50 3B Open Cut No No 

106.0 Tributary to Bitter Creek b I <50 3B Open Cut No No 

106.3 Tributary to Bitter Creek I <50 3B Open Cut No No 

107.2 Bitter Creek b P <100 2AB Open Cut No No 

108.1 Tributary to Patrick Draw I <50 3B Open Cut No No 

108.4 Tributary to Patrick Draw I <50 3B Open Cut No No 

108.8 Tributary to Patrick Draw b I <50 3B Open Cut No No 

109.1 Tributary to Patrick Draw I <50 3B Open Cut No No 

109.6 Tributary to Patrick Draw I <50 3B Open Cut No No 

109.8 Tributary to Patrick Draw b I <50 3B Open Cut No No 

110.3 Tributary to Patrick Draw b I <50 3B Open Cut No No 

110.5 Tributary to Patrick Draw I <50 3B Open Cut No No 

110.8 Tributary to Patrick Draw I <50 3B Open Cut No No 

111.1 Tributary to Patrick Draw b I <50 3B Open Cut No No 

111.5 Unknown b I <50 3B Open Cut No No 

111.6 Unknown b I <50 3B Open Cut No No 

111.8 Unknown b I <50 3B Open Cut No No 

111.8 Unknown b I <50 3B Open Cut No No 

112.1 Unknown I <50 3B Open Cut No No 

113.5 Unknown I <50 3B Open Cut No No 

113.5 Unknown I <50 3B Open Cut No No 

113.7 Unknown I <50 3B Open Cut No No 

113.9 Unknown I <50 3B Open Cut No No 

114.2 Unknown I <50 3B Open Cut No No 

F-4 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

114.3 Unknown I <50 3B Open Cut No No 

114.5 Unknown b I <50 3B Open Cut No No 

115.1 Unknown I <50 3B Open Cut No No 

115.2 Unknown I <50 3B Open Cut No No 

115.2 Unknown I <50 3B Open Cut No No 

116.9 Unknown I <50 3B Open Cut No No 

117.2 Unknown I <50 3B Open Cut No No 

118.0 Unknown b I <50 3B Open Cut No No 

118.1 Unknown b I <50 3B Open Cut No No 

118.1 Unknown b I <50 3B Open Cut No No 

118.4 Unknown b I <50 3B Open Cut No No 

120.6 Unknown b I <50 3B Open Cut No No 

120.7 Unknown b I <50 3B Open Cut No No 

121.3 Unknown b I <50 3B Open Cut No No 

122.6 Unknown b I <50 3B Open Cut No No 

123.5 Unknown b I <50 3B Open Cut No No 

123.7 Unknown b I <50 3B Open Cut No No 

124.0 Unknown I <50 3B Open Cut No No 

126.0 Unknown I <50 3B Open Cut No No 

126.3 Unknown I <50 3B Open Cut No No 

126.4 Unknown b I <50 3B Open Cut No No 

127.1 Unknown I <50 3B Open Cut No No 

127.6 Unknown I <50 3B Open Cut No No 

133.1 Unknown b I <50 3B Open Cut No No 

133.5 Unknown b I <50 3B Open Cut No No 

134.0 Unknown I <50 3B Open Cut No No 

135.5 Frewen Lake b Playa 3,140 3B Open Cut No No 

138.2 Latham Draw I <50 3B Open Cut No No 

139.7 Tributary to Latham Draw b I <50 B Open Cut No No 

140.2 Tributary to Latham Draw I <50 3B Open Cut No No 

146.6 Hansen Draw I <50 4A Open Cut No No 

147.8 Tributary to Hansen Draw b I <50 3B Open Cut No No 

151.6 Tributary to Fillmore Creek I <50 3B Open Cut No No 

153.0 Fillmore Creek P < 100 3B Open Cut No No 

153.7 Tributary to Fillmore Creek b I <50 3B Open Cut No No 

155.2 Tributary to Unnamed Lake I <50 3B Open Cut No No 

155.6 Tributary to Unnamed Lake b I <50 3B Open Cut No No 

158.5 Tributary to Fillmore Creek b I <50 3B Open Cut No No 

159.0 Tributary to Fillmore Creek b I <50 3B Open Cut No No 

159.0 Tributary to Fillmore Creek b I <50 3B Open Cut No No 

159.6 Tributary to Fillmore Creek I <50 3B Open Cut No No 

160.0 Tributary to Fillmore Creek I <50 3B Open Cut No No 

160.7 Tributary to Fillmore Creek I <50 3B Open Cut No No 

161.1 Tributary to Fillmore Creek I <50 3B Open Cut No No 

161.2 Tributary to Fillmore Creek I <50 3B Open Cut No No 

162.0 Tributary to Fillmore Creek b I <50 3B Open Cut No No 

162.3 Fillmore Creek I <50 3B Open Cut No No 

162.5 Tributary to Fillmore Creek I <50 3B Open Cut No No 

163.6 Tributary to Fillmore Creek b I <50 3B Open Cut No No 

163.6 Tributary to Fillmore Creek b I <50 3B Open Cut No No 

F-5 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

164.2 Tributary to Fillmore Creek I <50 3B Open Cut No No 

164.5 Fillmore Creek I <50 3B Open Cut No No 

165.2 Tributary to Fillmore Creek I <50 3B Open Cut No No 

168.1 Separation Creek b I <50 3B Open Cut No No 

170.3 Tributary to Hadsell Draw b I <50 4A Open Cut No No 

170.5 Tributary to Hadsell Draw b I <50 4A Open Cut No No 

172.5 Hadsell Draw b I <50 4A Open Cut No No 

174.2 Tributary to Hogback Lake b I <50 3B Open Cut No No 

174.7 Tributary to Hogback Lake b I <50 3B Open Cut No No 

174.8 Tributary to Hogback Lake b I <50 3B Open Cut No No 

177.1 Sixteenmile Draw I <50 3B Open Cut No No 

177.5 Tributary to Sixteenmile Draw I <50 3B Open Cut No No 

178.4 Coal Creek I <50 3B Open Cut No No 

178.9 Coal Creek I <50 3B Open Cut No No 

179.0 Coal Creek I <50 3B Open Cut No No 

179.1 Coal Creek I <50 3B Open Cut No No 

179.2 Coal Creek I <50 3B Open Cut No No 

180.2 Tributary to Coal Creek I <50 3B Open Cut No No 

180.4 Tributary to Coal Creek I <50 3B Open Cut No No 

180.5 Tributary to Coal Creek I <50 3B Open Cut No No 

182.6 Tributary to Sugar Creek I <50 3B Open Cut No No 

183.3 Tributary to Sugar Creek I <50 3B Open Cut No No 

183.4 Tributary to Sugar Creek I <50 3B Open Cut No No 

183.6 Tributary to Sugar Creek I <50 3B Open Cut No No 

184.4 Tributary to Sugar Creek I <50 3B Open Cut No No 

186.4 Unnamed Tributary to Lake I <50 3B Open Cut No No 

186.5 Unnamed Tributary to Lake I <50 3B Open Cut No No 

187.4 Unnamed Tributary to Lake b I <50 3B Open Cut No No 

187.9 Unnamed Tributary to Lake b I <50 3B Open Cut No No 

188.4 Unnamed Tributary to Lake b I <50 3B Open Cut No No 

190.2 Unnamed Tributary to Lake I <50 3B Open Cut No No 

190.6 Lake b Playa 1,200 3B Open Cut No No 

190.9 Unnamed Tributary to Lake b I <50 3B Open Cut No No 

191.1 Unnamed Tributary to Lake I <50 3B Open Cut No No 

191.2 Unnamed Tributary to Lake I <50 3B Open Cut No No 

192.2 Unnamed Tributary to Lake b I <50 3B Open Cut No No 

193.4 Unnamed Tributary to Lake I <50 3B Open Cut No No 

195.5 North Platte River P 100 <x< 300 2AB Open Cut Selenium No 

198.2 Tributary to North Platte River b I <50 3B Open Cut No No 

198.3 Tributary to North Platte River b I <50 3B Open Cut No No 

200.2 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

202.2 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

204.8 Tributary to St. Mary’s Creek I <50 3B Open Cut No No 

205.3 Tributary to St. Mary’s Creek I <50 3B Open Cut No No 

206.1 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

207.1 Tributary to Coyote Canyon 

Creek I <50 3B Open Cut No No 

207.4 Tributary to Coyote Canyon 

Creek I <50 3B Open Cut No No 

207.9 Tributary to St. Mary’s Creek I <50 3B Open Cut No No 

208.3 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

F-6 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

208.7 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

209.0 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

209.3 Tributary to St. Mary’s Creek I <50 3B Open Cut No No 

209.6 Tributary to St. Mary’s Creek I <50 3B Open Cut No No 

209.9 Tributary to St. Mary’s Creek I <50 3B Open Cut No No 

210.1 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

210.2 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

210.5 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

210.9 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

211.4 Tributary to St. Mary’s Creek I <50 3B Open Cut No No 

211.6 Mud Springs Reservoir Pond 250 3B Open Cut No No 

211.7 Tributary to St. Mary’s Creek I <50 3B Open Cut No No 

211.8 Tributary to St. Mary’s Creek I <50 3B Open Cut No No 

212.1 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

212.3 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

212.7 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

213.0 Tributary to St. Mary’s Creek b I <50 3B Open Cut No No 

213.3 Tributary to St. Mary’s Creek I <50 3B Open Cut No No 

215.2 Martinez Springs Creek I <50 2AB Open Cut No No 

215.3 Dana Springs Creek I <50 2AB Open Cut No No 

216.5 Kinney Creek b I <50 3B Open Cut No No 

216.6 Kinney Creek b I <50 3B Open Cut No No 

217.3 Tributary to Percy Creek I <50 3B Open Cut No No 

218.7 Tributary to Percy Creek I <50 3B Open Cut No No 

219.8 Tributary to Percy Creek b I <50 3B Open Cut No No 

220.0 Tributary to Percy Creek b I <50 3B Open Cut No No 

221.4 Tributary to Percy Creek b I <50 3B Open Cut No No 

222.2 Tributary to Moody Lake I <50 3B Open Cut No No 

224.9 Unnamed Tributary to Lake I <50 3B Open Cut No No 

225.3 Unnamed Tributary to Lake I <50 3B Open Cut No No 

225.9 Unnamed Tributary to Lake I <50 3B Open Cut No No 

228.1 Medicine Bow River P >100 2AB Open Cut No No 

229.1 Tributary to Bear Creek I <50 3B Open Cut No No 

229.2 Tributary to Bear Creek I <50 3B Open Cut No No 

229.9 Tributary to Bear Creek I <50 3B Open Cut No No 

230.0 Tributary to Bear Creek I <50 3B Open Cut No No 

230.5 Tributary to Bear Creek I <50 3B Open Cut No No 

231.3 Bear Creek P <100 2AB Open Cut No No 

232.4 Wagonhound Creek P <100 2AB Open Cut No No 

234.9 Tributary to Upper Foote Creek I <50 3B Open Cut No No 

235.4 Tributary to Upper Foote Creek I <50 3B Open Cut No No 

236.9 Tributary to Upper Foote Creek I <50 3B Open Cut No No 

237.1 Tributary to Upper Foote Creek P <100 2AB Open Cut No No 

237.9 Foote Creek P <100 2AB Open Cut No No 

238.0 Foote Creek P <50 2AB Open Cut No No 

238.2 Foote Creek P <50 2AB Open Cut No No 

239.8 Rock Creek P <100 2AB Open Cut No No 

239.9 Rock Creek P <100 2AB Open Cut No No 

240.0 Rock Creek P <100 2AB Open Cut No No 

240.1 Rock Creek P <100 2AB Open Cut No No 

F-7 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

240.9 Canon Ditch P <100 3B Open Cut No No 

241.5 Tributary to Threemile Creek P <100 2AB Open Cut No No 

241.6 Threemile Creek P <100 2AB Open Cut No No 

242.1 Tributary to Threemile Creek P <100 2AB Open Cut No No 

242.4 Tributary to Threemile Creek P <100 2AB Open Cut No No 

242.5 Tributary to Threemile Creek P <100 2AB Open Cut No No 

242.6 Tributary to Threemile Creek P <100 2AB Open Cut No No 

242.6 Canon Ditch P <100 3B Open Cut No No 

242.9 Tributary to Canon Ditch P <100 3B Open Cut No No 

243.0 Three Mile Creek P <100 2AB Open Cut No No 

243.4 Seepage Creek P <100 3B Open Cut No No 

243.9 Tributary to Jimmie Creek P <100 3B Open Cut No No 

244.3 Jimmie Creek P <100 3B Open Cut No No 

244.4 Tributary to Jimmie Creek P <100 3B Open Cut No No 

245.3 Dutton Creek P <100 2AB Open Cut No No 

245.8 Dutton Creek P <100 2AB Open Cut No No 

245.9 Dutton Creek P <100 2AB Open Cut No No 

247.1 Sheep Creek P <100 3B Open Cut No No 

247.6 Tributary to Dutton Creek I <50 3B Open Cut No No 

248.4 Tributary to Cooper Creek P <100 2AB Open Cut No No 

249.1 Cooper Creek P <100 2AB Open Cut No No 

249.1 Cooper Creek P <100 2AB Open Cut No No 

249.6 Cooper Creek P <100 3B Open Cut No No 

250.1 South Fork Cooper Creek P <100 3B Open Cut No No 

251.0 Tributary to South Fork Cooper 

Creek I <50 3B Open Cut No No 

251.0 Tributary to South Fork Cooper 

Creek I <50 3B Open Cut No No 

251.4 Tributary to Fourmile Creek I <50 3B Open Cut No No 

251.6 Tributary to Fourmile Creek b I <50 3B Open Cut No No 

252.1 Tributary to Fourmile Creek b I <100 3B Open Cut No No 

252.6 Fourmile Creek P <100 3B Open Cut No No 

252.6 Fourmile Creek P <100 3B Open Cut No No 

252.7 Ditch I <50 3B Open Cut No No 

252.8 Ditch I <50 3B Open Cut No No 

253.3 Tributary to Fourmile Creek I <50 3B Open Cut No No 

253.7 Tributary to Fourmile Creek I <50 3B Open Cut No No 

254.2 Tributary to Sevenmile Creek I <50 3B Open Cut No No 

254.6 Tributary to Sevenmile Creek I <50 3B Open Cut No No 

254.8 Sevenmile Creek P <100 3B Open Cut No No 

255.1 Tributary to Sevenmile Creek I <50 3B Open Cut No No 

255.7 Tributary to Sevenmile Creek I <50 3B Open Cut No No 

255.8 Tributary to Sevenmile Creek I <50 3B Open Cut No No 

256.0 Tributary to Sevenmile Creek I <50 3B Open Cut No No 

256.2 Tributary to Sevenmile Creek I <50 3B Open Cut No No 

256.4 Tributary to Sevenmile Creek I <50 3B Open Cut No No 

257.4 Bellamy Ditch No. 1 I <50 4A Open Cut No No 

258.0 Bellamy Ditch No. 2 I <50 4A Open Cut No No 

259.2 Unnamed Tributary to Lake I <50 4A Open Cut No No 

260.1 Unnamed Tributary to Lake I <50 4A Open Cut No No 

261.1 Unnamed Tributary to Lake I <50 4A Open Cut No No 

F-8 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

262.2 Tributary to Victoria Ditch I <50 4A Open Cut No No 

262.4 Tributary to Victoria Ditch I <50 4A Open Cut No No 

262.7 Snake Ditch I <50 4A Open Cut No No 

262.9 Snake Ditch I <50 4A Open Cut No No 

263.0 Victoria Ditch I <50 4A Open Cut No No 

263.5 Little Laramie River P <100 2AB Open Cut No No 

264.0 Alsop Slough I <50 2B Open Cut No No 

264.1 Alsop Ditch I <50 2B Open Cut No No 

264.5 Browns Creek P <100 2AB Open Cut No No 

264.7 Sand Creek I <100 2AB Open Cut No No 

265.0 Tributary to Sand Creek I <50 2C Open Cut No No 

265.2 Park Ditch I <50 4A Open Cut No No 

265.3 Tributary to Park Ditch I <50 3B Open Cut No No 

265.4 Tributary to Pilger Lake I <50 3B Open Cut No No 

265.6 Tributary to Pilger Lake I <50 3B Open Cut No No 

266.7 Tributary to Poverty Flat Ditch I <50 3B Open Cut No No 

267.4 Tributary to Knadler Lake I <50 3B Open Cut No No 

267.7 Tributary to Knadler Lake I <50 3B Open Cut No No 

267.8 Tributary to Knadler Lake I <50 3B Open Cut No No 

267.9 Tributary to Knadler Lake I <50 3B Open Cut No No 

268.0 Tributary to Knadler Lake I <50 3B Open Cut No No 

268.2 Tributary to Knadler Lake I <50 3B Open Cut No No 

268.9 Tributary to Knadler Lake I <50 3B Open Cut No No 

271.3 Tributary to North Canal I <50 3B Open Cut No No 

272.6 Unknown I <50 3B Open Cut No No 

272.8 Unknown I <50 3B Open Cut No No 

272.9 Unknown I <50 3B Open Cut No No 

275.2 North Canal I <50 4A Open Cut No No 

275.8 Pioneer Canal I <50 4A Open Cut No No 

277.1 Laramie River P <100 2AB Open Cut No No 

277.7 Fivemile Creek I <50 3B Open Cut No No 

277.8 Tributary to Fivemile Creek I <50 3B Open Cut No No 

278.2 Lake Playa 250 3B Open Cut No No 

279.5 Lake Playa 250 3B Open Cut No No 

279.8 Harney Creek I <50 3B Open Cut No No 

280.4 Tributary to Harney Creek I <50 3B Open Cut No No 

280.9 Tributary to Harney Creek I <50 3B Open Cut No No 

281.4 Simpson Springs Creek I <50 4A Open Cut No No 

283.0 Tributary to Harney Creek I <50 3B Open Cut No No 

283.8 Tributary to Harney Creek I <50 3B Open Cut No No 

284.1 Tributary to Harney Creek I <50 3B Open Cut No No 

284.4 Tributary to Harney Creek I <50 3B Open Cut No No 

284.6 Tributary to Harney Creek I <50 3B Open Cut No No 

284.7 Tributary to Harney Creek I <50 3B Open Cut No No 

285.1 Tributary to Harney Creek I <50 3B Open Cut No No 

285.4 Tributary to Harney Creek I <50 3B Open Cut No No 

285.6 Tributary to Harney Creek I <50 3B Open Cut No No 

286.1 Tributary to Harney Creek I <50 3B Open Cut No No 

286.1 Tributary to Harney Creek I <50 3B Open Cut No No 

286.5 Tributary to Harney Creek I <50 3B Open Cut No No 

F-9 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

286.6 Tributary to Harney Creek I <50 3B Open Cut No No 

287.2 Tributary to Spring Creek I <50 3B Open Cut No No 

287.3 Spring Creek I <50 3B Open Cut No No 

288.0 Tributary to Spring Creek I <50 3B Open Cut No No 

288.4 Tributary to Spring Creek I <50 3B Open Cut No No 

292.4 Dale Creek P <50 2AB Open Cut No No 

292.8 Tributary to Dale Creek P <50 3B Open Cut No No 

293.5 Tributary to Dale Creek P <50 3B Open Cut No No 

294.1 Tributary to Dale Creek P <50 3B Open Cut No No 

295.0 Tributary to Dale Creek P <50 3B Open Cut No No 

295.3 c Lone Tree Creek P <50 3B Open Cut No No 

295.5 c Lone Tree Creek P <50 3B Open Cut No No 

296.7 Tributary to Lone Tree Creek P <50 3B Open Cut No No 

297.0 c Tributary to Lone Tree Creek P <50 3B Open Cut No No 

298.2 Tributary to Lone Tree Creek P <50 3B Open Cut No No 

299.3 Tributary to Lone Tree Creek P <50 3B Open Cut No No 

301.3 Tributary to Lone Tree Creek P <50 3B Open Cut No No 

304.6 Tributary to Lone Tree Creek I <50 3B Open Cut No No 

306.5 Tributary to Lone Tree Creek I <50 3B Open Cut No No 

307.0 Tributary to Lone Tree Creek I <50 3B Open Cut No No 

307.5 Lone Tree Creek P <50 2C Open Cut No No 

308.8 Tributary to Willow Creek I <50 3B Open Cut No No 

309.1 Tributary to Willow Creek I <50 3B Open Cut No No 

309.6 Tributary to Willow Creek I <50 3B Open Cut No No 

310.1 Tributary to Willow Creek I <50 3B Open Cut No No 

311.3 Tributary to Goose Creek I <50 3B Open Cut No No 

311.5 Tributary to Goose Creek I <50 3B Open Cut No No 

311.6 Tributary to Goose Creek I <50 3B Open Cut No No 

314.0 Tributary to Duck Creek I <50 3B Open Cut No No 

314.4 Tributary to Duck Creek I <50 3B Open Cut No No 

315.5 Tributary to Duck Creek I <50 3B Open Cut No No 

315.9 Tributary to Duck Creek I <50 3B Open Cut No No 

316.3 Duck Creek I <50 3B Open Cut No No 

317.1 c Brush Creek I <50 3B Open Cut No No 

317.2 c Brush Creek I <50 3B Open Cut No No 

318.4 Brush Creek P <50 3B Open Cut No No 

318.4 Brush Creek P <50 3B Open Cut No No 

318.5 Brush Creek P <50 3B Open Cut No No 

319.7 Tributary to Spotwood Creek P <50 3B Open Cut No No 

320.1 Tributary to Spotwood Creek P <50 3B Open Cut No No 

Colorado 

321.9 Tributary to Lone Tree Creek I <50 ALWW2, AG, 

RSC Open Cut No No 

322.6 Tributary to Lone Tree Creek I <50 ALWW2, AG, 

RSC Open Cut No No 

322.9 Lone Tree Creek P <50 ALWW2, AG, 

RSC Open Cut No No 

324.2 Unknown I <50 Unknown Open Cut No No 

325.8 Unknown I <50 Unknown Open Cut No No 

327.1 Unknown I <50 Unknown Open Cut No No 

 F-10 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

328.1 Tributary to Owl Creek I <50 ALWW2, AG, 

RSC Open Cut No No 

329.2 Tributary to Owl Creek I <50 ALWW2, AG, 

RSC n Open Cut No No 

330.0 Owl Creek I <50 ALWW2, AG, 

RSC Open Cut No No 

331.8 Unknown I <50 Unknown Open Cut No No 

332.6 Tributary to Cow Creek I <50 ALWW2, AG, 

RSC Open Cut No No 

332.9 Cow Creek I <50 ALWW2, AG, 

RSC Open Cut No No 

334.3 Eastman Creek I <50 ALWW2, AG, 

RSC Open Cut No No 

334.4 Eastman Creek I <50 ALWW2, AG, 

RSC Open Cut No No 

335.2 Tributary to Eastman Creek I <50 Unknown Open Cut No No 

335.3 Tributary to Eastman Creek I <50 Unknown Open Cut No No 

335.7 Tributary to Eastman Creek I <50 Unknown Open Cut No No 

335.9 Tributary to Eastman Creek I <50 Unknown Open Cut No No 

338.9 West Fork Willow Creek b I <50 ALCW2 Open Cut No No 

342.8 Tributary to West Fork Willow 

Creek I <50 ALCW2 Open Cut No No 

343.3 Willow Creek I <50 ALWW2, AG, 

RSC Open Cut No No 

344.4 c Tributary to Willow Creek b I <50 Unknown Open Cut No No 

345.7 Tributary to Willow Creek b I <50 Unknown Open Cut No No 

346.5 Tributary to Willow Creek b I <50 Unknown Open Cut No No 

349.5 Geary Creek I <50 ALCW2 Open Cut No No 

349.6 Tributary to Geary Creek I <50 ALCW2 Open Cut No No 

351.6 Tributary to Geary Creek b I <50 ALCW2 Open Cut No No 

358.3 Little Crow Creek I <50 ALCW2 Open Cut No No 

358.4 Little Crow Creek I <50 ALCW2 Open Cut No No 

361.4 Crow Creek I <50 ALWW2, AG, 

RSC Open Cut No No 

363.3 Jackson Draw I <50 ALWW2, AG, 

RSC Open Cut No No 

364.8 Lake Playa <50 Unknown Open Cut No No 

369.2 Lake Playa <250 Unknown Open Cut No No 

370.2 c Lake Playa ** Unknown Open Cut No No 

370.7 Lake Playa <250 Unknown Open Cut No No 

376.1 Lake b Playa <250 Unknown Open Cut No No 

377.7 Lake Playa <250 Unknown Open Cut No No 

379.6 Tributary to Wild Horse Creek I <50 Unknown Open Cut No No 

380.4 Tributary to Wild Horse Creek b I <50 Unknown Open Cut No No 

381.0 Tributary to Wild Horse Creek b I <50 Unknown Open Cut No No 

381.2 Tributary to Wild Horse Creek b I <50 Unknown Open Cut No No 

384.9 South Pawnee Creek I <100 ALWW2, AG, 

RSC Open Cut No No 

390.7 Unnamed I <50 Unknown Open Cut No No 

391.9 Unnamed I <50 Unknown Open Cut No No 

403.5 LF Draw I <50 ALWW2, AG, 

RSC Open Cut No No 

404.0 Tributary to LF Draw I <50 Unknown Open Cut No No 

404.2 Tributary to LF Draw I <50 Unknown Open Cut No No 

 F-11 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

408.1 Riverside Canal (abandoned) I <100 Unknown Open Cut No No 

410.3 Tributary to North Sterling Canal I <50 Unknown Open Cut No No 

411.1 Tributary to North Sterling Canal I <50 Unknown Open Cut No No 

412.3 Tributary to North Sterling Canal I <50 Unknown Open Cut No No 

412.3 Tributary to North Sterling Canal I <50 Unknown Open Cut No No 

412.6 North Sterling Canal P <100 ALWW1, RPC, 

AG Open Cut No No 

413.2 South Platte River P > 100 DS, ALWW2, 

RPC, AG HDD NO3, E. 

coli No 

413.5 Tributary to South Platte River I <50 ALWW2, AG, 

RSC Open Cut No No 

413.7 Tributary to South Platte River I <50 ALWW2, AG, 

RSC Open Cut No No 

413.8 Tributary to South Platte River I <50 ALWW2, AG, 

RSC Open Cut No No 

413.9 Tributary to South Platte River I <50 ALWW2, AG, 

RSC Open Cut No No 

414.0 Tributary to South Platte River I <50 ALWW2, AG, 

RSC Open Cut No No 

414.8 Company Ditch P <100 ALWW2, AG, 

RSC Open Cut No No 

416.0 Ditch P <100 ALWW2, AG, 

RSC Open Cut No No 

416.2 South Platte Ditch P <100 ALWW2, AG, 

RSC Open Cut No No 

416.9 Sand Hill Ditch P <100 ALWW2, AG, 

RSC Open Cut No No 

417.8 Twentymile Slough I <50 ALWW2, AG, 

RSC Open Cut No No 

424.2 Tributary to South Platte I <50 ALWW2, AG, 

RSC Open Cut No No 

426.2 Tributary to South Platte I <50 ALWW2, AG, 

RSC Open Cut No No 

426.6 Tributary to South Platte I <50 ALWW2, AG, 

RSC Open Cut No No 

427.0 Tributary to South Platte I <50 ALWW2, AG, 

RSC Open Cut No No 

427.2 Tributary to South Platte I <50 ALWW2, AG, 

RSC Open Cut No No 

428.2 Tributary to South Platte I <50 ALWW2, AG, 

RSC 2 Open Cut No No 

429.3 Unknown I <50 Unknown Open Cut No No 

447.7 Small Lake Pond <50 Unknown Open Cut No No 

447.8 Surveyor Creek I <50 Unknown Open Cut No No 

448.2 Surveyor Creek I <50 Unknown Open Cut No No 

474.0 Chief Creek P <100 ALCW1, RPC,, 

AG, DWS Open Cut No No 

476.6 Tributary to North Fork 

Republican River I <100 ALWW2, RSC, 

AG Open Cut No No 

477.3 North Fork Republican River P <100 ALCW1, RPC, 

DWS, AG Open Cut No No 

477.5 Tributary to North Fork 

Republican River I <50 ALWW2, RSC, 

AG Open Cut No No 

477.7 Tributary to North Fork 

Republican River I <50 ALWW2, RSC, 

AG Open Cut No No 

478.1 Tributary to North Fork 

Republican River I <50 ALWW2, RSC, 

AG Open Cut No No 

 F-12 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

480.4 Tributary to North Fork 

Republican River I <50 ALWW2, RSC, AG Open Cut No No 

489.8 Horse Creek I <50 Unknown Open Cut No No 

490.1 Tributary to Horse Creek I <50 Unknown Open Cut No No 

490.4 Tributary to Horse Creek I <50 Unknown Open Cut No No 

490.5 Tributary to Horse Creek I <50 Unknown Open Cut No No 

490.7 Tributary to Horse Creek I <50 Unknown Open Cut No No 

490.8 Tributary to Horse Creek I <50 Unknown Open Cut No No 

491.6 Tributary to Arikaree River I <50 Unknown Open Cut No No 

491.7 Arikaree River P > 100 ALWW1, RPC, 

AG Open Cut No No 

492.1 Tributary to Arikaree River I <50 Unknown Open Cut No No 

492.2 Tributary to Arikaree River I <50 Unknown Open Cut No No 

Kansas 

492.7 Tributary to Arikaree River I <50 GP Open Cut No No 

492.9 Tributary to Arikaree River I <50 GP Open Cut No No 

493.2 Tributary to Arikaree River I <50 GP Open Cut No No 

493.9 Tributary to Arikaree River I <50 GP Open Cut No No 

494.2 Tributary to Arikaree River I <50 GP Open Cut No No 

494.5 Tributary to Arikaree River I <50 GP Open Cut No No 

495.6 Devil's Canyon Gulch I <50 GP Open Cut No No 

499.2 Tributary to Hackberry Creek I <50 GP Open Cut No No 

500.4 Tributary to Hackberry Creek I <50 GP Open Cut No No 

501.9 Hackberry Creek I <50 GP Open Cut No No 

502.2 Tributary to Hackberry Creek I <50 GP Open Cut No No 

503.0 Tributary to Hackberry Creek I <50 GP Open Cut No No 

503.1 Tributary to Hackberry Creek I <50 GP Open Cut No No 

503.7 Tributary to Hackberry Creek I <50 GP Open Cut No No 

504.5 Tributary to Hackberry Creek I <50 GP Open Cut No No 

509.4 Cleveland Run I <50 Unknown Open Cut No No 

510.3 Cleveland Run I <50 Unknown Open Cut No No 

510.4 South Fork Republican River P > 100 

GP, S, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

512.0 Tributary to South Fork 

Republican River I <50 GP Open Cut No No 

513.0 Bluff Creek I <50 GP Open Cut No No 

513.1 Bluff Creek I <50 GP Open Cut No No 

513.3 Bluff Creek I <50 GP Open Cut No No 

514.6 Bluff Creek I <50 GP Open Cut No No 

515.5 Bluff Creek I <50 GP Open Cut No No 

515.6 Bluff Creek I <50 GP Open Cut No No 

520.3 Big Timber Creek I <50 GP Open Cut No No 

527.7 Small Lake Playa <100 Unknown Open Cut No No 

530.1 Tributary to Beaver Creek I <50 GP Open Cut No No 

531.3 Tributary to Beaver Creek I <50 GP Open Cut No No 

531.5 Little Beaver Creek I <50 GP Open Cut DO, F No 

532.0 Tributary to Beaver Creek I <50 GP Open Cut No No 

532.9 Tributary to Beaver Creek I <50 GP Open Cut No No 

533.0 Tributary to Beaver Creek I <50 GP Open Cut No No 

536.5 Tributary to Beaver Creek I <50 GP Open Cut No No 

 F-13 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

538.6 Beaver Creek P <100 GP, E, FP Open Cut DO, F No 

539.1 Tributary to Beaver Creek I <50 GP Open Cut No No 

539.6 Tributary to Beaver Creek I <50 GP Open Cut No No 

540.2 Tributary to Beaver Creek I <50 GP Open Cut No No 

542.2 Tributary to North Fork Sappa 

Creek I <50 

GP, E, Q, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

542.6 North Fork Sappa Creek I <50 

GP, E, Q, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

542.7 Tributary to North Fork Sappa 

Creek I <50 

GP, E, Q, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

548.9 Middle Fork Sappa Creek I <50 GP Open Cut No No 

549.6 Unknown I <50 GP Open Cut No No 

550.5 Unknown I <50 GP Open Cut No No 

551.4 Unknown I <50 GP Open Cut No No 

555.3 Unknown I <50 GP Open Cut No No 

555.8 Unknown I <50 GP Open Cut No No 

558.1 South Fork Sappa Creek I <50 GP Open Cut No No 

558.8 Unknown I <50 GP Open Cut No No 

561.9 Tributary to Prairie Dog Creek I <50 GP Open Cut No No 

563.0 Tributary to Prairie Dog Creek I <50 GP Open Cut No No 

563.8 Prairie Dog Creek I <50 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

563.9 Prairie Dog Creek I <50 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

563.9 Prairie Dog Creek I <50 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

564.4 Tributary to Prairie Dog Creek I <50 GP Open Cut No No 

568.2 Tributary to Solomon River I <50 GP Open Cut No No 

570.3 North Fork Solomon River I <50 GP Open Cut No No 

577.8 Tributary to Sand Creek I <50 Unknown Open Cut No No 

580.5 Tributary to Sand Creek I <50 Unknown Open Cut No No 

582.0 Tributary to Sand Creek I <50 Unknown Open Cut No No 

582.4 Tributary to Sand Creek I <50 Unknown Open Cut No No 

582.5 Sand Creek I <50 Unknown Open Cut No No 

582.7 Tributary to Sand Creek I <50 Unknown Open Cut No No 

583.1 Tributary to Sand Creek I <50 Unknown Open Cut No No 

583.8 Tributary to Sand Creek I <50 Unknown Open Cut No No 

587.0 Unknown I <50 Unknown Open Cut No No 

587.5 South Fork Solomon River I <50 GP Open Cut No No 

588.0 Unknown I <50 Unknown Open Cut No No 

588.1 Unknown I <50 Unknown Open Cut No No 

588.4 Unknown I <50 Unknown Open Cut No No 

589.2 Unknown I <50 Unknown Open Cut No No 

589.4 Unknown I <50 Unknown Open Cut No No 

589.7 Unknown I <50 Unknown Open Cut No No 

590.3 Unknown I <50 Unknown Open Cut No No 

591.6 Tributary to Midway Draw I <50 GP Open Cut No No 

 F-14 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

592.1 Tributary to Midway Draw I <50 GP Open Cut No No 

592.3 Tributary to Midway Draw I <50 GP Open Cut No No 

593.2 Tributary to Midway Draw I <50 GP Open Cut No No 

593.6 Tributary to Midway Draw I <50 GP Open Cut No No 

594.5 Tributary to Midway Draw I <50 GP Open Cut No No 

595.0 Tributary to Midway Draw I <50 GP Open Cut No No 

595.3 Tributary to Midway Draw I <50 GP Open Cut No No 

599.0 Leeds Draw I <50 Unknown Open Cut No No 

599.3 Leeds Draw I <50 Unknown Open Cut No No 

599.5 Leeds Draw I <50 Unknown Open Cut No No 

600.0 Leeds Draw I <50 Unknown Open Cut No No 

600.9 Leeds Draw I <50 Unknown Open Cut No No 

601.3 Tributary to Saline River I <50 GP Open Cut No No 

601.7 Tributary to Saline River I <50 GP Open Cut No No 

602.0 Tributary to Saline River I <50 GP Open Cut No No 

602.2 Tributary to Saline River I <50 GP Open Cut No No 

602.5 Tributary to Saline River I <50 GP Open Cut No No 

602.8 Tributary to Saline River I <50 GP Open Cut No No 

604.5 Turner Draw I <50 Unknown Open Cut No No 

605.0 Turner Draw I <50 Unknown Open Cut No No 

605.1 Turner Draw I <50 Unknown Open Cut No No 

605.6 Turner Draw I <50 Unknown Open Cut No No 

606.3 Tributary to Saline River I <50 GP Open Cut No No 

606.8 Tributary to Saline River I <50 GP Open Cut No No 

607.6 Tributary to Saline River I <50 GP Open Cut No No 

608.4 Saline River P <100 

GP, E, P, DS, 

FP, GR, IW, IR, 

LW 

Open Cut No No 

608.7 Tributary to Saline River I <50 GP Open Cut No No 

608.8 Saline River P <100 

GP, E, P, DS, 

FP, GR, IW, IR, 

LW 

Open Cut No No 

609.2 Saline River P <100 

GP, E, P, DS, 

FP, GR, IW, IR, 

LW 

Open Cut No No 

609.7 Plum Creek P <100 GP, E, FP Open Cut No No 

610.7 Tributary to Saline River I <50 GP Open Cut No No 

611.0 Tributary to Saline River I <50 GP Open Cut No No 

611.4 Tributary to Saline River I <50 GP Open Cut No No 

611.7 Tributary to Saline River I <50 GP Open Cut No No 

612.8 Coyote Creek I <50 GP, E Open Cut No No 

613.5 Tributary to Saline River I <50 GP Open Cut No No 

613.9 Tributary to Saline River I <50 GP Open Cut No No 

614.6 Tributary to Saline River I <50 GP Open Cut No No 

615.0 Tributary to Saline River I <50 GP Open Cut No No 

615.6 Tributary to Saline River I <50 GP Open Cut No No 

616.6 Tributary to Saline River I <50 GP Open Cut No No 

617.3 Tributary to Saline River I <50 GP Open Cut No No 

618.4 Trego Creek I <50 GP,E,Q Open Cut No No 

618.5 Trego Creek I <50 GP,E,Q Open Cut No No 

619.3 Trego Creek I <50 GP, E,Q Open Cut No No 

612.0 Trego Creek I <50 GP, E, Q Open Cut No No 

 F-15 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

620.2 Trego Creek I <50 GP, E, Q Open Cut No No 

620.9 Trego Creek I <50 GP, E, Q Open Cut No No 

622.2 Unknown I <50 GP Open Cut No No 

623.0 Tributary to Big Creek I <50 GP Open Cut No No 

623.6 Tributary to Big Creek I <50 GP Open Cut No No 

624.0 Tributary to Big Creek I <50 GP Open Cut No No 

625.1 Tributary to Big Creek I <50 GP Open Cut No No 

625.5 Tributary to Big Creek I <50 GP Open Cut No No 

625.9 Tributary to Big Creek I <50 GP Open Cut No No 

626.4 Tributary to Big Creek I <50 GP Open Cut No No 

626.7 Tributary to Big Creek I <50 GP Open Cut No No 

627.1 Tributary to Big Creek I <50 GP Open Cut No No 

627.9 Tributary to Big Creek I <50 GP Open Cut No No 

628.0 Tributary to Big Creek I <50 GP Open Cut No No 

628.8 Tributary to Big Creek I <50 GP Open Cut No No 

629.3 Tributary to Big Creek I <50 GP Open Cut No No 

630.1 Tributary to Big Creek I <50 GP Open Cut No No 

630.7 Tributary to Big Creek I <50 GP Open Cut No No 

631.6 Tributary to Big Creek I <50 GP Open Cut No No 

632.3 Tributary to Big Creek I <50 GP Open Cut No No 

632.9 Tributary to Big Creek I <50 GP Open Cut No No 

633.3 Tributary to Big Creek I <50 GP Open Cut No No 

634.0 Tributary to Big Creek I <50 GP Open Cut No No 

635.4 Tributary to Big Creek I <50 GP Open Cut No No 

635.5 Tributary to Big Creek I <50 GP Open Cut No No 

637.4 Big Creek P <100 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut DO No 

638.0 Unknown I <50 GP Open Cut No No 

639.2 Unknown I <50 GP Open Cut No No 

639.7 Unknown I <50 GP Open Cut No No 

640.9 Unknown I <50 GP Open Cut No No 

641.3 Unknown I <50 GP Open Cut No No 

641.7 Unknown I <50 GP Open Cut No No 

642.5 Unknown I <50 GP Open Cut No No 

643.2 Unknown I <50 GP Open Cut No No 

644.0 Unknown I <50 GP Open Cut No No 

645.7 Unknown I <50 GP Open Cut No No 

646.6 Unknown I <50 GP Open Cut No No 

647.3 Unknown I <50 GP Open Cut No No 

647.8 Unknown I <50 GP Open Cut No No 

649.2 Unknown I <50 GP Open Cut No No 

649.5 Unknown I <50 GP Open Cut No No 

650.5 Unknown I <50 GP Open Cut No No 

650.6 Unknown I <50 GP Open Cut No No 

650.9 Unknown I <50 GP Open Cut No No 

650.9 Unknown I <50 GP Open Cut No No 

651.0 Unknown I <50 GP Open Cut No No 

651.4 Unknown I <50 GP Open Cut No No 

651.8 Unknown I <50 GP Open Cut No No 

652.1 Unknown I <50 GP Open Cut No No 

 F-16 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

652.5 Unknown I <50 GP Open Cut No No 

652.8 Unknown I <50 GP Open Cut No No 

653.3 Unknown I <50 GP Open Cut No No 

653.5 Unknown I <50 GP Open Cut No No 

654.8 Unknown I <50 GP Open Cut No No 

654.0 Unknown I <50 GP Open Cut No No 

654.1 Unknown I <50 GP Open Cut No No 

654.2 Unknown I <50 GP Open Cut No No 

654.4 Unknown I <50 GP Open Cut No No 

655.9 Tributary to Lookout Hollow I <50 GP Open Cut No No 

656.1 Tributary to Lookout Hollow I <50 GP Open Cut No No 

657.4 Lookout Hollow I <50 GP Open Cut No No 

658.5 Tributary to Lookout Hollow I <50 GP Open Cut No No 

658.8 Tributary to Lookout Hollow I <50 GP Open Cut No No 

659.7 Tributary to Lookout Hollow I <50 GP Open Cut No No 

656.0 Tributary to Lookout Hollow I <50 GP Open Cut No No 

660.5 Tributary to Lookout Hollow I <50 GP Open Cut No No 

660.7 Tributary to Lookout Hollow I <50 GP Open Cut No No 

661.2 Tributary to Big Creek I <50 GP Open Cut No No 

663.2 Tributary to Big Creek I <50 GP Open Cut No No 

663.4 Tributary to Big Creek I <50 GP Open Cut No No 

664.1 Tributary to Big Creek I <50 GP Open Cut No No 

665.4 Tributary to Big Creek I <50 GP Open Cut No No 

666.5 Tributary to Big Creek I <50 GP Open Cut No No 

667.2 Tributary to Big Creek I <50 GP Open Cut No No 

667.5 Tributary to Big Creek I <50 GP Open Cut No No 

668.0 Tributary to Big Creek I <50 GP Open Cut No No 

669.3 Tributary to Big Creek I <50 GP Open Cut No No 

670.1 Tributary to Big Creek I <50 GP Open Cut No No 

670.7 Tributary to Big Creek I <50 GP Open Cut No No 

672.8 Unknown I <50 GP Open Cut No No 

673.3 Unknown I <50 GP Open Cut No No 

674.2 Unknown I <50 GP Open Cut No No 

674.4 Unknown I <50 GP Open Cut No No 

674.8 Unknown I <50 GP Open Cut No No 

675.3 Tributary to Smokey Hill River I <50 GP Open Cut No No 

676.3 Smokey Hill River P <100 GP Open Cut No No 

676.8 Tributary to Smokey Hill River I <50 GP Open Cut No No 

677.5 Tributary to Smokey Hill River I <50 GP Open Cut No No 

678.0 Tributary to Smokey Hill River I <50 GP Open Cut No No 

679.0 Tributary to Smokey Hill River I <50 GP Open Cut No No 

680.5 Tributary to Smokey Hill River I <50 GP Open Cut No No 

681.6 Tributary to Smokey Hill River I <50 GP Open Cut No No 

681.9 Unknown I <50 GP Open Cut No No 

683.1 Unknown I <50 GP Open Cut No No 

683.2 Unknown I <50 GP Open Cut No No 

683.7 Unknown I <50 GP Open Cut No No 

683.9 Unknown I <50 GP Open Cut No No 

684.3 Landon Creek I <50 GP Open Cut Selenium No 

685.0 Unknown I <50 GP Open Cut No No 

 F-17 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

686.0 Unknown I <50 GP Open Cut No No 

686.6 Unknown I <50 GP Open Cut No No 

687.5 Sellens Creek I <50 GP, E, FP Open Cut No No 

687.6 Sellens Creek I <50 GP, E, FP Open Cut No No 

687.7 Sellens Creek I <50 GP, E, FP Open Cut No No 

688.7 Sellens Creek I <50 GP, E, FP Open Cut No No 

689.7 Unknown I <50 GP Open Cut No No 

690.0 Unknown I <50 GP Open Cut No No 

690.8 Unknown I <50 GP Open Cut No No 

691.0 Unknown I <50 GP Open Cut No No 

691.2 Unknown I <50 GP Open Cut No No 

691.2 Unknown I <50 GP Open Cut No No 

691.7 Deception Creek I <50 GP Open Cut Turb., Cl, 

SO4 

No 

692.3 Unknown I <50 GP Open Cut No No 

692.6 Unknown I <50 GP Open Cut No No 

693.4 Goose Creek I <50 GP, E, FP Open Cut No No 

693.8 Goose Creek I <50 GP, E, FP Open Cut No No 

694.4 Unknown I <50 GP Open Cut No No 

694.6 Unknown I <50 GP Open Cut No No 

694.9 Unknown I <50 GP Open Cut No No 

695.6 Unknown I <50 GP Open Cut No No 

696.1 Unknown I <50 GP Open Cut No No 

696.7 Unknown I <50 GP Open Cut No No 

697.3 Unknown I <50 GP Open Cut No No 

698.0 Unknown I <50 GP Open Cut No No 

698.3 Unknown I <50 GP Open Cut No No 

699.5 Cow Creek I <50 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut Chloride No 

700.0 Cow Creek I <50 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

700.1 Cow Creek I <50 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

700.2 Cow Creek I <50 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

701.0 Cow Creek I <50 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

701.5 Cow Creek I <50 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

702.6 Unknown I <50 GP Open Cut No No 

702.8 Unknown I <50 GP Open Cut No No 

703.5 Unknown I <50 GP Open Cut No No 

703.7 Unknown I <50 GP Open Cut No No 

704.5 Unknown I <50 GP Open Cut No No 

705.6 Unknown I <50 GP Open Cut No No 

705.8 Unknown I <50 GP Open Cut No No 

706.4 Unknown I <50 GP Open Cut No No 

706.6 Unknown I <50 GP Open Cut No No 

 F-18 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

707.0 Unknown I <50 GP Open Cut No No 

708.6 Unknown I <50 GP Open Cut No No 

709.0 Unknown I <50 GP Open Cut No No 

709.5 Calf Creek I <50 GP Open Cut No No 

710.0 Calf Creek I <50 GP Open Cut No No 

710.9 Calf Creek I <50 GP Open Cut Chloride No 

711.0 Calf Creek I <50 GP Open Cut No No 

712.2 Plum Creek I <50 GP, E, FP Open Cut No No 

712.6 Plum Creek I <50 GP, E, FP Open Cut No No 

713.2 Plum Creek I <50 GP, E, FP Open Cut No No 

714.0 Plum Creek I <50 GP, E, FP Open Cut No No 

714.6 Plum Creek I <50 GP, E, FP Open Cut No No 

714.7 Plum Creek P <100 GP, E, FP Open Cut No No 

714.9 Plum Creek P <100 GP, E, FP Open Cut No No 

715.3 Plum Creek P <100 GP, E, FP Open Cut Chloride No 

715.8 Plum Creek P <100 GP, E, FP Open Cut No No 

716.7 Plum Creek I <100 GP, E, FP Open Cut No No 

717.4 Plum Creek P <100 GP, E, FP Open Cut No No 

717.4 Plum Creek P <100 GP, E, FP Open Cut No No 

717.7 Plum Creek I <100 GP, E, FP Open Cut No No 

718.0 Unknown P <100 GP Open Cut No No 

718.8 Unknown I <50 GP Open Cut No No 

720.0 Unknown I <50 GP Open Cut No No 

720.4 Lost Creek I <50 GP, E Open Cut Chloride No 

721.2 Lost Creek I <50 GP, E Open Cut No No 

722.0 Unknown I <50 GP Open Cut No No 

722.6 Unknown I <50 GP Open Cut No No 

722.8 Unknown I <50 GP Open Cut No No 

724.4 Unknown I <50 GP Open Cut No No 

725.2 Little Cow Creek P <100 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut No No 

725.9 Tributary to Little Cow Creek I <50 GP Open Cut No No 

726.1 Tributary to Little Cow Creek I <50 GP Open Cut No No 

727.3 Unknown I <50 GP Open Cut No No 

728.3 Unknown I <50 GP Open Cut No No 

728.7 Unknown I <50 GP Open Cut No No 

730.0 Owl Creek I <50 GP Open Cut Cl, Zn No 

730.0 Owl Creek I <50 GP Open Cut Cl, Zn No 

730.1 Owl Creek I <50 GP Open Cut Cl, Zn No 

731.2 Mitchell Creek I <50 GP Open Cut No No 

733.7 Tributary to Jarius Creek I <50 GP Open Cut No No 

736.8 Tributary to Dry Creek I <50 GP Open Cut No No 

737.3 Tributary to Dry Creek I <50 GP Open Cut No No 

737.6 Tributary to Dry Creek I <50 GP Open Cut No No 

738.1 Tributary to Dry Creek I <50 GP Open Cut No No 

738.5 Tributary to Dry Creek I <50 GP Open Cut No No 

738.8 Tributary to Dry Creek I <50 GP Open Cut No No 

739.4 Tributary to Dry Creek I <50 GP Open Cut No No 

 F-19 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

740.6 Little Arkansas River P <100 

GP, E, P, DS, 

FP,GR,IW,IR,L 

W 

Open Cut Cu, Cl, 

Atrazine No 

740.9 Tributary to Little Arkansas River I <50 GP Open Cut No No 

741.1 Tributary to Little Arkansas River I <50 GP Open Cut No No 

742.1 Salt Creek I <50 GP, E, P, FP Open Cut 

Cu, NH4, 

Cl, NO2, 

NO3, 

Atrazine 

No 

743.0 North Fork I <50 Unknown Open Cut No No 

743.3 Tributary to North Fork I <50 GP Open Cut No No 

743.7 Tributary to North Fork I <50 GP Open Cut No No 

744.4 Unknown I <50 GP Open Cut No No 

744.8 Unknown I <50 GP Open Cut No No 

744.9 Unknown I <50 GP Open Cut No No 

745.7 Lone Tree Creek I <50 Unknown Open Cut Cu, Cl, 

Atrazine No 

746.0 Lone Tree Creek I <50 Unknown Open Cut No No 

746.3 Lone Tree Creek I <50 Unknown Open Cut No No 

746.7 Lone Tree Creek I <50 Unknown Open Cut No No 

746.9 Lone Tree Creek I <50 Unknown Open Cut No No 

747.3 Lone Tree Creek I <50 Unknown Open Cut No No 

747.7 Lone Tree Creek I <50 Unknown Open Cut No No 

748.3 Unknown I <50 GP Open Cut No No 

748.5 Unknown I <50 GP Open Cut No No 

748.9 Unknown I <50 GP Open Cut No No 

749.3 Unknown I <50 GP Open Cut No No 

a

 State Surface Water Quality Classifications: 

The following lists indicate general surface water quality classifications, based on beneficial uses for which state standards have 

been developed. Additional regulations govern standards and antidegradation requirements. Further information is available from 

respective state water quality regulatory agencies: Wyoming Department of Environmental Quality (Cheyenne), Colorado 

Department of Public Health and Environment (Denver), and Kansas Department of Health and Environment (Topeka). 

 Wyoming: In general, the listing for a particular water indicates the “highest” use of that water; i.e., Class 3 waters generally do 

not support Class 1 or 2 uses. 

Class 1 – Outstanding Waters – In nearly every case, these are protected for all uses. 

Class 2 – Fisheries and Drinking Water 

 2AB - Support Game Fish 

 2A – No known potential for game fish, but are used as public or domestic drinking water supplies. 

 2B – Known/potential to support game fish. Drinking water uses are not attainable. 

 2C – Support nongame fish populations. 

 Class 3 – Aquatic Life Other than Fish 

 3A – Not known to support fish populations or drinking water supplies, and where not attainable. 

 3B – Tributary waters and adjacent wetlands not known to support fish populations or drinking water supplies, and 

where not attainable. 

 3C – Waters or perennial streams that do not support fish or drinking water supplies, but do support wetland 

characteristics. 

 Class 4 – Agriculture, Industry, Recreation and Wildlife 

 4A – Artificial canals and ditches that are not known to support fish populations. 

 4B – Intermittent and ephemeral stream channels that are not able to sustain aquatic life. 

 4C – All waters that have been determined to lack the potential to normally support and sustain aquatic life. 

Colorado: 

AG - Agriculture 

ALCW1 - Aquatic Life Cold Water-Class 1 

 F-20 
Table F-1 Waterbodies Crossed by the Proposed Overland Pass Pipeline Project 

Reference 

Point Waterbody Name Flow 

Approximate 

Width (feet) 

Water Quality 

Classification a 

Proposed 

Crossing 

Method 

303(d) 

Listed d ONRW e 

ALCW2 - Aquatic Life Cold Water-Class 2 

ALWW1 - Aquatic Life Warm Water-Class 1 

ALWW2 - Aquatic Life Warm Water-Class 2 

DWS - Domestic Water Source 

RPC - Recreation Primary Contact 

RSC - Recreation Secondary Contact 

Kansas: 

GP – General purpose waters 

E – Expected aquatic life use water 

P – Primary contact recreation 

Q – Secondary contact recreation 

DS – Domestic water supply use 

FP – Food procurement use 

GR – Ground water recharge 

IS – Industrial water supply use 

IR – Irrigation use 

LW – Livestock watering use 

b

 Within or adjacent to federally managed land. c

 Located within 500 feet of the pipeline crossing, but not directly impacted. d

 Impaired for stated beneficial uses; impairment listed. e

 Outstanding Natural Resource Waters; specific state water quality antidegradation policies may apply. 

 F-21 
Table F-2 Waterbodies Crossed by the Proposed Southern Energy Corridor – Copper 

Ridge Bypass Alternative Pipeline Route 

Waterbody Name Flow Approximate Width (feet) 

Tributary to Little Bitter Creek P <100 

Little Bitter Creek P <100 

Cedar Creek P <100 

Cedar Creek P <100 

Cedar Creek I <50 

Tributary to Little Bitter Creek I <50 

Tributary to Sand Wash I <50 

Coal Mine Canyon Creek I <50 

Coyote Canyon Creek I <50 

Tributary to Circle Creek I <50 

Tributary to Circle Creek I <50 

Tributary to Circle Creek I <50 

Circle Springs Draw I <50 

Tributary to Circle Creek I <50 

Circle Creek I <50 

Circle Creek I <50 

Circle Creek I <50 

Tributary to Circle Creek I <50 

Tributary to Circle Creek I <50 

Tributary to Circle Creek I <50 

Tributary to Circle Creek I <50 

Tributary to Circle Creek I <50 

Tributary to Circle Creek I <50 

Tributary to Salt Wells Creek l <50 

Tributary to Salt Wells Creek l <50 

Tributary to Salt Wells Creek l <50 

Tributary to Salt Wells Creek l <50 

Tributary to Salt Wells Creek l <50 

Tributary to Salt Wells Creek l <50 

Tributary to Salt Wells Creek l <50 

Tributary to Mail Station Draw I <50 

Tributary to Mail Station Draw I <50 

Tributary to Mail Station Draw I <50 

Tributary to Mail Station Draw I <50 

Mail Station Draw I <50 

Tributary to Mail Station Draw I <50 

Tributary to Salt Wells Creek I <50 

Blair Creek I <50 

Salt Wells Creek I <50 

Tributary to Salt Wells Creek I <50 

Tributary to Salt Wells Creek I <50 

Tributary to Salt Wells Creek I <50 

Tributary to Salt Wells Creek I <50 

Tributary to Salt Wells Creek I <50 

Tributary to Salt Wells Creek I <50 

Tributary to Salt Wells Creek I <50 

Tributary to Cutthroat Draw I <50 

Tributary to Cutthroat Draw I <50 

Tributary to Cutthroat Draw I <50 

 F-22 
Table F-2 Waterbodies Crossed by the Proposed Southern Energy Corridor – Copper 

Ridge Bypass Alternative Pipeline Route 

Waterbody Name Flow Approximate Width (feet) 

Tributary to Cutthroat Draw I <50 

Cutthroat Draw I <50 

 F-23 
Appendix G 

Special Status Species Tables 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Federal Mammals Black-footed ferret 

Mustela nigripes FE; CO-E; 

WY-NSS1; KS-E 

Suitable habitat consists of black-tailed prairie dog colonies or complexes (80 acres or greater) or White-tailed prairie dog colonies or complexes (200 acres or greater). Most litters are born in May and emerge from their nursery dens in July. 

Low. Historic occurrence along the proposed project route in Wyoming, Colorado, and Kansas. 

No. BLM 2006a; BLM 

2006b; WYNDD 2005; CNHP 2006; Derby et al. 2006; KDWP 2005; USFWS 2005; WGFD 2005c. 

Preble's meadow jumping mouse 

Zapus hudsonius preblei 

FT w/CH; CO-T 

This subspecies occurs in habitats consisting of well-developed plains riparian vegetation with dense herbaceous vegetation that include of a variety of grasses, forbs, and thick shrubs in close proximity to water. Suitable habitat can occur along stream channels, vegetated irrigation canals, ditches, and riparian and wetland areas (including wet meadows). Hibernation occurs from September-October to April-May. Nests are constructed in underground burrows. Young are born between mid-June and late July. 

Moderate. This species has been documented along the proposed project route. Suitable habitat for this species occurs in riparian habitats in Albany and Laramie counties Wyoming; and Morgan and Weld counties, Colorado. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

No. CNHP 2006; Derby 

et al. 2006; KDWP 2005; USFWS 2005. 

Gray wolf Canis lupus FT Formerly thought to be extinct in Wyoming, 

reintroduction in the Yellowstone area has lead to a viable population in that portion of the state. The gray wolf occupies a variety of habitats in that area, often associated with ungulate herds, such as elk. Pups born between March and late-April. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Wyoming, Colorado, or Kansas. The USFWS did not identify this species for analysis. 

Yes. The proposed project route does not occur within the geographic range of this species. 

USFWS 2005; NatureServe 2006. 

G-1 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Grizzly bear Ursus arctos 

horribilis 

FT; WYNSS3 Formerly a habitat generalist, the grizzly now occurs only in the montane regions of 

northwest Wyoming, where it can be found in a wide variety of habitats from open grassland plateaus to conifer forests. Cubs born between January and March. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Wyoming, Colorado, or Kansas. The USFWS did not identify this species for analysis. 

Yes. The proposed project route does not occur within the geographic range of this species. 

USFWS 2005; WGFD 2005c; NatureServe 2006. 

Birds Bald eagle Haliaeetus 

leucocephalus 

FT; CO-T; WY-NSS2; KS-T; USFSR4S 

This species typically occurs near large bodies of water that support suitable roosting and foraging habitat. Nests are commonly built in mature cottonwoods or conifers along lakes or other large bodies of water. Wyoming Breeding Season: February 1-July 31. Colorado Breeding Season: November 15 through July 31. Wyoming Winter Roosting Period: November 15 through April 30. Colorado Winter Roosting Period: November 15 through March 15. 

Moderate. This species has been documented along the proposed project route in Wyoming and Colorado. No known occurrence in the vicinity of the proposed project route in Kansas; however suitable habitat is present. 

No. BLM 2006a; BLM 

2006b; WYNDD 2005; CNHP 2006; Derby et al. 2006; KDWP 2005; Kingery 1998; NatureServe 2006; USFWS 2005; WGFD 2005d; Craig 2002; BLM 1990. 

Yellow-billed cuckoo 

Coccyzus americanus 

FC; BLMWY; WYNSS2 This species inhabits lowland deciduous woodlands, willow and alder thickets, mature cottonwood-riparian woodlands, deserted 

farmlands, and orchards. Breeding typically occurs in riparian woodlands. Breeding Season: June 1 through July 31. 

Low. This species has been documented within the vicinity of the proposed project route in Wyoming. This species and its required habitat are not found within the vicinity of the proposed project route in Colorado. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; CNHP 2006; Derby et al. 2006; USFS 2005; NatureServe 2006; Kingery 1998; USFWS 2005; WGFD 2005d. 

G-2 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Whooping crane 

Grus americana FE; CO-E; 

KS-E 

During migration, this species feeds and roosts in a variety of habitats including croplands, large and small freshwater marshes, the margins of lakes and reservoirs, and submerged sandbars in rivers. Spring and Fall migration through the Proposed project regions generally occurs from February through April and from October through November, respectively. Breeding Season: May 1 through July 31. 

Low. Occurrence of this species along the proposed project route would be limited to migrating individuals from the Arkansas-Wood Buffalo population in eastern Colorado and Kansas. Affected by water depletions to the Platte River in Colorado and Wyoming. Also affected by proposed project activities occurring during migration in Barton, McPherson, Rice, Russell, Sheridan, and Trego County, Kansas. 

No. CNHP 2006; Derby 

et al. 2006; NatureServe 2006; Kingery 1998; USFWS 2005; KDWP 2005. 

Interior least tern 

Sterna antillarum athalassos 

FE; KS-E; CO-E 

Nesting habitat consists of sparsely vegetated sandy, gravelly, or silty, beaches and sandbars within wide, unobstructed river channels or salt flats along lake shorelines and irrigation reservoirs. Nest locations are generally away from the water’s edge since nesting typically begins while river flows are high and relatively small amounts of sandy habitat is exposed. Breeding season: May 1 through August 15. 

Low. In Colorado: Adobe Creek and Nee Noshe Reservoirs, Kiowa Co., and Horse Creek Reservoir, Otero Co. Affected by water depletions to the Platte River in Wyoming and Colorado. Affected by proposed project activities occurring during migration in Barton and Rice County, Kansas. 

No. CNHP 2006; Derby 

et al. 2006; Haig and Elliot-Smith 2004; NatureServe 2006; Kingery 1998; USFWS 2005; KDWP 2005. 

G-3 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Piping plover Charadrius 

melodus circumcinctus 

FT; CO-T; KS-T 

This species inhabits open sandy areas and saline flats with little vegetation along rivers, lakes, ponds, and marshlands. It nests on sandbars and sand and gravel beaches with short, sparse vegetation along inland lakes, on natural and dredge islands in rivers, on gravel pits along rivers, and on saltencrusted bare areas on interior alkali ponds and lakes. Sparse clumps of grass or herbaceous vegetation are important habitat components. Breeding season: May 1 through August 15. 

Low. Current breeding range occurs along the Platte River, the Arkansas River, reservoirs in eastern Colorado. Affected by water depletions to the Platte River Colorado and Wyoming. Affected by proposed project activities occurring during migration in Barton and Rice County, Kansas. 

No. CNHP 2006; Derby 

et al. 2006; NatureServe 2006; Kingery 1998; USFWS 2005; KDWP 2005. 

Lesser prairie chicken 

Tympanuchus pallidicinctus 

FC; CO-T Open shortgrass prairie habitat. 

Breeding Season: April 1-September 15. 

Low. No known occurrence within the vicinity of the proposed project route in Kansas; however, potential breeding habitat occurs in Kansas south of I-70 in Trego County and in Ellis County. This species and its required habitat are not found within the vicinity of the proposed project route in Wyoming or Colorado. 

No. CNHP 2006; Derby 

et al. 2006; Kingery 1998; USFWS 2005. 

Eskimo curlew 

Numenius borealis FE; KS-E This species is a rare spring migrant that 

feeds and rests in burned-over prairies, agricultural areas, and marshes. In Kansas, Eskimo Curlews were formerly a regular spring transient through the eastern half of the state. In Kansas, Eskimo Curlews were formerly a regular spring transient through the eastern half of the state. They are now considered extirpated from Kansas. Breeding Season: June 1 through August 15. 

Extremely Low. This species was not identified by the USFWS for analysis. This species and its required habitat are not found within the proposed project vicinity in Wyoming or Colorado. Occurrence in Kansas would be limited to accidental migrants. 

Yes. There is no known historic occurrence within counties crossed by the proposed project route. 

CNHP 2006; Derby et al. 2006; NatureServe 2006; Kingery 1998; USFWS 2005; KDWP 2005. 

G-4 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Mexican spotted owl 

Strix occidentalis FT; CO-SOC Occurs in moderately closed (>50% canopy 

cover) and steep (>40% grade) in portions of the Rocky Mountain west. Critical habitat has been designated in Weld County, Colorado. Breeding Season: April 1 through August 31. 

None. This species and its required habitat are not found within the proposed project vicinity in Wyoming, Colorado, or Kansas. 

Yes. CNHP 2006; Derby 

et al. 2006; Kingery 1998; USFWS 2005. 

Amphibians Wyoming toad Bufo baxteri FE, WYNSS1 This species inhabits floodplains, ponds, and small seepage lakes in shortgrass 

communities of the Laramie Basin. Requires some deep soft soil for burrowing. Breeding occurs in May through August. 

Low. An historic observation of this species was documented along the proposed project route in Laramie River Valley in Albany County, WY. This species and its required habitat are not found within the vicinity of the proposed project route in Colorado or Kansas. 

No. USFWS 2005; 

Cerovski et al. 2004; Keinath et al. 2003. 

Fish Bonytail Gilia elegans FE; CO E; 

USFS-R4S 

This rare species occur in larger river channels of Green, Colorado, Yampa, and Gilia Rivers in Colorado River drainage. This species primarily occupies pools and eddies rather than areas with swift current. Spawning typically occurs in June and July. 

Low. Critical habitat and historic occurrence in the Green River. 

No. USFWS 1990, 

1993; Woodling 1985. 

Colorado pikeminnow 

Ptychocheilus lucius 

FE; CO-E This species occurs in big, deep-water 

riverine habitats at a variety of depths and velocities over silt, sand, gravel, and boulder substrates. Spawning occurs in run, eddy, and pool habitats in from June through August. Young fish primarily inhabit shallow, backwater areas over silt and sand bottoms. 

Low. Critical habitat and known occurrence in the Green River. 

No. FWS 1993; 

Woodling 1985. 

G-5 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Humpback chub 

Gilia cypha FE; CO E; 

USFS-R4S 

This species occupies a variety of riverine habitats including in deep water pools riffles and eddies over silt, sand, boulder, and bedrock substrate. Spawning typically occur after the highest spring flows when water temperatures approach 68oF. 

Young fish utilize shallow areas in backwaters, eddies, and runs. 

Low. Critical habitat and known occurrence in the Green River. 

No. Lee et al. 1980; 

FWS 1993; Woodling 1985. 

Razorback sucker 

Xyrauchen texanus 

FE; CO-E; USFS-R4S 

This species is found in backwaters, eddies, pools, and flat-water areas in the main channel. Sand or silt substrates with low water velocity are preferred. Spawning occurs over mixed substrate in the spring with rising water levels and increasing temperatures ranging from 48o to 63oF. 

Young fish utilize quiet, shallow backwaters and river margins. 

Low. Critical habitat and known occurrence in the Green River. 

No. FWS 1993; 

Woodling 1985. 

Pallid sturgeon 

Scaphirhynchus albus 

FE; KS-E It inhabits bottom areas of large turbid 

rivers that have strong current and a firm sandy substrate. They also may be found along sandbars and behind wing dikes. Spawning period: April through August. 

Low. Known occurrence in the Platte River below the Elk River confluence. 

No. GPNC 2005b. 

Arkansas darter 

Etheostoma cragini 

FC; KS-T Species is found in clear streams with low 

current, sandy substrates, and abundant aquatic vegetation. 

None. Found in tributaries of the Arkansas River 

Yes. Although this species occurs in KS, it does not occur in any portion of the project area as proposed (USFWS 12/13/05). 

FWS 2005; Woodling 1985 

Arkansas river shiner 

Notropis girardi FT; KS-E Species is found in wide, shallow rivers 

and streams with sandy bottoms. 

None. Presently restricted to tributaries of the Arkansas River drainage in Kansas. 

Yes. FWS; KDWP 

website 

G-6 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Topeka shiner 

Notropis topeka FE; KS-T This species inhabits pool and run areas 

in the headwaters of small prairie streams with high water quality and cool temperatures. These streams generally exhibit intermittent flow during summer; however pools are maintained by spring or groundwater percolation. The substrate of these occupied streams consist mainly of clean gravel, however bedrock and clay hardpan overlain by a thin silt layer are not uncommon. Spawning period: late spring and summer. 

None. Restricted to a few scattered tributaries to the Missouri and Mississippi rivers and the Flint Hills in Kansas. 

Yes. KDWP 2004; 

Bessken 1997; Cross 1967; Pflieger 1975; KDWP website. 

Plants Colorado butterfly plant 

Gaura neomexicana ssp. coloradensis 

FT This subspecies is a short-lived, perennial 

herb endemic to moist soils in mesic or wet meadows of floodplain areas in southeastern Wyoming, northcentral Colorado, and extreme western Nebraska. This early to mid-seral stage species occurs primarily in habitats created and maintained by streams active within their floodplains, with vegetation that is relatively open and not overly dense or overgrown. It is also found on subirrigated, alluvial soils of drainage bottoms surrounded by mixed grass prairie. Elevation: 5800 to 6400 feet. Flowering period: late June to early October. 

High. Laramie County, WY, and Weld County, CO. Regional endemic of the North and South Platte watersheds of Wyoming, northeast Colorado, and adjoining Nebraska. It occupies riparian habitats with at least seasonal water flow. Critical habitat present, surveys required. 

No. Critical and Suitable habitat for this species is present within the project area. Surveys will be conducted for this species. 

Fertig et al. 1994; Keinath et al. 2003; Humphrey 2005b; BLM 2006b; BLM 2002; Derby et al. 2006. 

Blowout penstemon 

Penstemon haydenii 

FE This species occurs on steep, northwestfacing slopes of active, blowout sand dunes 

with sparse vegetative cover. Flowering period: May through June. Elevation: 6,680-7,440 feet. 

Low. Endemic to sand dunes south of Ferris Mountains in Carbon County, WY. 

No. If suitable habitat is encountered along pipeline, surveys will be conducted. 

Fertig 2000; BLM 2006b; BLM 2002; Derby et al. 2006; Humphrey 2005b. 

G-7 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Ute ladies'tresses 

Spiranthes diluvialis 

FT ; USFSR4S This perennial, terrestrial orchid grows in moist to very wet meadows along streams or 

in abandoned stream meanders that still retain ample ground water. It also occurs near springs, seeps, and lakeshores. Elevational: 4265-5249 feet. Flowering period: late July through August. 

Moderate. Moist soils and wet meadows in WY counties, and Morgan and Weld counties, CO 

No. Suitable habitat for this species is present within the project area. Surveys will be conducted for this species. 

BLM 2002; Fertig 2000; Humphrey 2005b. 

Western prairie fringed orchid 

Platanthera praeclara 

FT Occurs in mesic upland tallgrass prairie, wetmesic tallgrass prairie, and sedge meadows. 

Also known from prairies and swales in dune complexes that are fed by shallow underground water. Flowering period: June through July 

None Yes. USDA 2007; HullSieg and Bjugstad 

1994. 

BLM Mammals Fringed myotis 

Myotis thysanodes BLM-WY; 

WY-NSS2; USFS-R2S 

This species primarily inhabits coniferous forests, woodland-chaparral, and basinprairie shrublands, but have been documented in spruce-fir habitats. Roost sites include caves, abandoned mines, rock crevices, and buildings. Pups born between May and July. 

Low. This species has been documented in the vicinity of the proposed project route in Wyoming. No roosts or maternity colonies are known to occur on the PNG; however, suitable habitat is present. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; CNHP 2006; Derby et al. 2006; USFS 2005; WGFD 2005c; Ellison 2003. 

Long-eared myotis 

Myotis evotis BLM-WY; 

WY-NSS2 

Conifer and deciduous forests, caves and mines. Found in conifer forests, especially ponderosa pine. Forage over water holes and possible openings in conifer forests. Roosts in caves, buildings, and mines. Pups born between May and August. 

Moderate. This species has been documented along the proposed project route in Wyoming. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; Cerovski et al. 2004; WGFD 2005c; Ellison 2003. 

G-8 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Spotted bat Euderma 

maculatum 

BLM-WY; WY-NSS2; USFS-R4S 

Cliff roosting, generally near perennial water and in a variety of habitats (including desert, shrub-steppe, and evergreen forest). Pups born between May and July. 

Low. No known occurrence in the vicinity of the proposed project route in Wyoming; however, suitable habitat is present. 

No. WYNDD 2005; 

Derby et al. 2006; Cerovski et al. 2004; CDOW 2006; CDOW no date; CNHP 2005; WGFD 2005c; Ellison 2003. 

Townsend's big-eared bat 

Plecotus townsendii 

BLM-WY; WY-NSS2; CO-SOC; KS-SINC; USFS-R4S 

This species inhabits dry coniferous forests, juniper woodlands, deciduous forests, basins, desert shrublands, and grasslands. Roost sites typically include caves and abandoned mines, but rock outcrops and buildings also will be used. Pups born between May and July. 

Low. This species has been documented in the vicinity of the proposed project route in Wyoming. No known occurrence in the vicinity of the proposed project route in Colorado or Kansas; however, suitable habitat is present. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; CNHP 2006; USFS 2005; CDOW 2006; CDOW no date; Derby et al. 2006; KDWP 2005; KSNHD 2005; WGFD 2005c; Ellison 2003. 

Pygmy rabbit Brachylagus 

idahoensis 

BLM –WY Basin prairie and riparian shrub. Two key 

habitat components include relatively dense/tall sagebrush compared to the surrounding landscape and deep soils. Breeding period extends from spring to early summer. 

Moderate. This species has been documented along the proposed project route in Wyoming. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Cervoski et al. 2004; Derby et al. 2006; NatureServe 2006. 

Swift fox Vulpes velox BLM-WY 

CO-SOC; USFS-R2S; 

This species is found in short-, mid-, and mixed grass prairies with gently rolling hills. Den sites are typically located on flat areas or along slopes or ridges that provide a good view. Dens are typically on sites dominated by blue grama or buffalo grass. Young are born in late March, April, or early May. 

Moderate. This species has been documented along the proposed project route in Colorado, and in the vicinity of the proposed project route in Wyoming. This species is widespread on the PNG. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; CDOW no date, CDOW 2006. CNHP 2006; Derby et al. 2006; USFS 2005. 

G-9 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

White-tailed prairie dog 

Cynomys leucurus BLM-WY This species occupies basin-prairie and 

mountain-foothill shrublands, sagebrushgrasslands, barren and overgrazed areas, and agricultural areas. Young are born between March and midJune. 

Moderate. This species has been documented along the proposed project route in Wyoming. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; CNHP 2006; USFS 2005; Derby et al. 2006; NatureServe 2006. 

Black-tailed prairie dog 

Cynomys ludovicianus 

BLM-WY; USFS-R2S; CO-SOC 

This species Inhabits short-grass or mixed grasslands that contain suitable upland soil types for constructing burrow systems. Young are born between April and mid-June. 

High. This species has been documented along the proposed project route in Colorado. Numerous active colonies have been documented on the PNG. 

No. CNHP 2006; USFS 

2005; CDOW 2005; CDOW no date; Derby et al. 2006; USFWS 2005; NatureServe 2006. 

Idaho pocket gopher 

Thomomys idahoensis 

BLM-WY Shallow stony soils. 

Young born between March and mid-June. 

Low. No known occurrence of this species in the vicinity of the proposed project route in Wyoming; however, suitable habitat is present. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; NatureServe 2006. 

Wyoming pocket gopher 

Thomomys clusius BLM-WY Meadows with loose soil. 

Dry upland areas (ridgetops, etc.) characterized by loose, gravel-like soil. Endemic to Wyoming, they are often observed near Bidger’s Pass. Young born between March and Mid-June. 

Moderate. This species has been documented along the proposed project route in Wyoming. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; NatureServe 2006. 

G-10 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Birds Burrowing owl Athene cunicularia BLM-WY 

USFS-R2S;; CO-T 

This species nests in non-riparian habitats including abandoned burrows of prairie dogs, ground squirrels, foxes, and badgers in grassland, open shrubland, and woodland communities. Wyoming Breeding Season: February 1 through July 31 Colorado Breeding Season: April 1 through October 31. 

High. This species has been documented along the proposed project route in Wyoming and Colorado. This species has been documented on all Breeding Bird Survey routes within the PNG. 

No. BLM 2002; BLM 

2006b; WYNND 2005; CDOW 2005; CNHP 2006; USFS 2005; Derby et al 2006; Kingery 1998; Craig 2002; BLM 1990. 

Mountain plover 

Charadrius montanus 

BLM-WY; USFS-R2S; USFS-R4S; CO-SOC; KS-SINC 

Habitat for this species includes shortgrass prairie where grazing is intensive, or in areas of fallow or burned fields, dry mudflats, or active prairie dog colonies. Areas of flat bare ground (>30%) appears to be the most prominent characteristic of suitable breeding habitat. Breeding season: March 15 through July 31. 

High. This species was documented along the proposed project route in Wyoming and Colorado. No known occurrences in the vicinity of the proposed project route in Kansas; however suitable habitat is present. Occurrence surveys conducted on the PNG in the mid 1990’s show widespread breeding use of the PNG. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; CNHP 2006; CDOW 2005; Derby et al. 2006; USFS 2005; NatureServe 2006; KDWP 2005; Kingery 1998; KSNHD 2005. 

Brewer's sparrow 

Spizella breweri BLM-WY; 

USFS-R2S 

Sagebrush foothills and medium-height sagebrush in basins. Also, mountain mahogany hills. Breeding Season: May 15 through July 31. 

High. This species was documented along the proposed project route in Wyoming. This species has been documented on all Breeding Bird Survey routes within the PNG. 

No. BLM 2006a; BLM 

2006b; BLM 2002; WYNDD 2005; USFS 2005; Derby et al. 2006; Kingery 1998. 

G-11 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Ferruginous hawk 

Buteo regalis BLM-WY; 

CO-SOC; USFS-R2S; KS-SINC 

This species occurs in open semi-arid habitats including basin-prairie shrubland, mountainfoothills, badlands, and grassland. Nest sites include trees, ledges, and rock outcrops in sagebrush valleys and rolling grassland habitat. Wyoming Breeding Season: February 1 through July 31. Colorado Breeding Season: February 15 through July 15. 

High. This species was documented along the proposed project route in Wyoming and Colorado. No known occurrences in the vicinity of the proposed project route in Kansas; however suitable habitat is present. There is known nesting and occurrence on the PNG. 

No. BLM 2002; BLM 

2006a; BLM 2006b; USFS 2005; WGFD 2005; CDOW 2005; CNHP 2006; WYNDD 2005; Derby et al. 2006; KDWP 2005; Kingery 1998; KSNHD 2005; Craig 2002; BLM 1990. 

Loggerhead shrike 

Lanius ludovicianus 

BLM-WY; USFS-R2S 

This species typically inhabits open riparian areas, agricultural areas, grasslands, and shrublands (especially semidesert shrublands). Nest sites usually occur in isolated trees or large shrubs. Breeding Season: April 1 through June 30. 

High. This species was documented along the proposed project route in Wyoming. This species has been documented on the PNG on all Breeding Bird Survey routes. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; CNHP 2006; CDOW 2006; Derby et al. 2006; USFS 2005; NatureServe 2006; Kingery 1998; Yosev, 1996. 

Long-billed curlew 

Numenius americanus 

BLM-WY; CO-SOC; USFS-R2S; KS-SINC 

Grasslands, plains, foothills, wet meadows. Breeding Season: March 15 through August 1. 

Moderate. This species was documented along the proposed project route in Wyoming and Colorado. No known occurrences in the vicinity of the proposed project route in Kansas; however suitable habitat is present. Incidental observations on the PNG. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; CNHP 2006; CDOW 2006; Derby et al. 2006; USFS 2005; NatureServe 2006; KDWP 2005; Kingery 1998; KSNHD 2005. 

G-12 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Northern goshawk 

Accipiter gentiles BLM-WY; 

USFS-R4S 

This species occupies mature, closedcanopied coniferous and aspen forests habitats. This species nests open older-aged class coniferous forests and aspen stands. Breeding Season: April 15 through August 31. 

Moderate. This species was documented within the vicinity of the proposed project route in Wyoming. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; NatureServe 2006. 

Golden eagle Aquila chrysaetos BLM-WY; 

KS-SINC 

This species occurs in a variety of habitats including grassland, pinyon-juniper woodland, coniferous and deciduous forests, shrubland, and rock outcrop. Nest sites are usually on located on cliffs and occasionally in large trees in open habitats. Wyoming Breeding Season: February 1 through July 15. Colorado Breeding Season: December 1 through July 15. 

High. This species was documented along the proposed project route in Wyoming. No known occurrences in the vicinity of the proposed project route in Kansas; however suitable habitat is present. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; NatureServe 2006; KDWP 2005; KSNHD 2005; BLM 1990; Craig 2002. 

Peregrine falcon 

Falco peregrinus BLM-WY; 

USFS-R4S; KS-E 

This species is found over a wide variety of habitats, but are generally located near open water or marshes that support high concentration of shorebirds or waterfowl. Nest sites occur on tall steep-walled cliffs, bridges, or buildings. Preferred foraging habitat includes lakes, rivers, and wet meadows. Breeding season: February 1 through July 31. 

Moderate. This species was documented along the proposed project route in Wyoming. No known occurrence in the vicinity of the proposed project route in Kansas and Colorado; however, suitable breeding habitat is present 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; CNHP 2006; Derby et al. 2006; USFS 2005; KDWP 2005; Kingery 1998; BLM 1990. 

Sage sparrow Amphispiza belli BLM-WY Sagebrush, basin prairie shrub, mountain 

foothill shrub. Breeding Season: April 1 through July 31. 

Moderate. This species was documented along the proposed project route in Wyoming. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; Martin et al 1998. 

G-13 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Sage thrasher Oreoscoptes 

montanus 

BLM-WY Sagebrush, basin prairie shrub, mountain 

foothill shrub and greasewood. Breeding Season: April 1 through August 31. 

Moderate. This species was documented along the proposed project route in Wyoming. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; Reynolds 1999. 

Trumpeter swan 

Cygnus buccinator BLM-WY; 

USFS-R4S; WY-NSS2 

Lakes, ponds, rivers. Breeding Season: This species does not breed within or near the proposed project route. 

Low. Limited to migrant habitat use. 

No. Potential occurrence limited to migrant individuals. 

BLM 2006c. Mitchell 1994; WGFD 2005d. 

White-faced ibis 

Plegadis chihi BLM-WY They occur in wet meadows, marsh edges, 

and reservoir shorelines. Breeding Season: May 1-August 31 

Moderate. This species has been documented along the proposed project route in Wyoming. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; NatureServe 2006. 

Greater sagegrouse Centrocercus urophasianus BLM-WY; USFS-R4S; 

CO-SOC; WY-NSS2 

The sage grouse is a sagebrush obligate species. Lek sites are generally located in open areas such as broad ridges, grassy areas, and disturbed sites, adjacent to suitable nesting habitat. Nesting occurs within sagebrush stands with adequate height and canopy cover, and food source. Breeding Season: February 1 through July 31. 

High. This species has been documented in the vicinity of the proposed project route. 18 leks have been documented within one mile of the proposed project route. This species and its required habitat are not found within the vicinity of the proposed project route in Colorado. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; WGFD 2005; CNHP 2006; CDOW 2006; Derby et al. 2006; KDWP 2005; Kingery 1998; WGFD 2005d; BLM 1990. 

G-14 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Columbian sharp-tailed grouse 

Tympanuchus phasianellus columbianus 

BLM-WY Native bunchgrass and shrub-steppe 

communities. In western Idaho, preferred big sagebrush habitats with moderate vegetative cover, high plant species diversity, and high structural diversity; in general selected vegetative communities that were least modified by livestock grazing. Deciduous shrubs are critical for winter food and escape cover. Bunchgrasses and perennial forbs are important components of nesting and broodrearing habitat. Breeding Season: March 1 through July 31. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Wyoming. 

Yes. The proposed project route occurs outside of the known geographic range for this species. 

BLM 2002; NatureServe 2006; WYNDD 2005, WGFD 2006a; WGFD 2006b. 

Baird's sparrow 

Ammodramus bairdii 

BLM-WY Ungrazed or lightly grazed mixed-grass 

prairie, wet meadows, local pockets of tallgrass prairie, and some disturbed habitats. Prairie with scattered low bushes and matted vegetation. Breeding Season: This species is not known to breed within or near the proposed project route. 

Low. No known occurrence of this species occurs within the vicinity of the proposed project route in Wyoming; however suitable habitat is present. Isolated breeding records of this species in Laramie County, Wyoming. 

Yes. Occurrence would be limited to accidental migrants. 

BLM 2002; Derby et al. 2006; Keinath 2003; NatureServe 2006; Green 2002; WYNDD 2005, . 

Reptiles Midget faded rattlesnake 

Crotalus viridis concolor 

BLM-WY; CO-SOC 

This species inhabits rock outcrops in the sagebrush communities. Live young are born in late summer or early fall 

Moderate. This species has been documented along the proposed project route in Wyoming. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Cerovski et al. 2004; Derby et al. 2006; CNHP 2006; CDOW 2006; CDOW no date; NatureServe 2006. 

G-15 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Amphibians Western boreal toad 

Bufo boreas boreas 

CO-E; BLMWY; WYNSS2 This species typically occupies damp conditions in the vicinity of marshes, wet meadows, streams, beaver ponds, kettle 

ponds, and lakes. Breeds in still to slow moving waters. Breeding occurs in May through August depending on elevation. 

Moderate. This species has been documented along the proposed project route in Wyoming. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; Cerovski et al. 2004; USFWS 2005; USFS 2005; CDOW 2006; CDOW no date; Keinath et al. 2003. 

Northern leopard frog 

Rana pipiens BLM-WY; 

CO-SOC. 

This species inhabits marshes, ponds, beaver ponds, lakes, reservoirs, streams, and irrigation ditches. Breeding occurs in March through midSeptember. 

High. This species has been documented along the proposed project route in Wyoming. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; Cerovski et al. 2004; USFS 2005; CDOW 2006; CDOW no date. 

Great Basin spadefoot toad 

Spea intermontana BLM-WY This species inhabits pinon-juniper 

woodlands, sagebrush, and semi-desert shrubland. This species uses both permanent and temporary water sources for breeding. Breeding occurs in May through July. 

High. This species has been documented along the proposed project route in Wyoming. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; Cerovski et al. 2004. 

Spotted frog Rana pretiosa BLM-WY Ponds, sloughs, small streams. 

Breeding occurs between March and May, as winter thaw permits. 

Low. No known occurrence in the vicinity of the proposed project route in Wyoming; however, suitable habitat is present. 

No. BLM 2002; BLM 

2006a; BLM 2006b; WYNDD 2005; Derby et al. 2006; Cerovski et al. 2004; NatureServe 2006. 

G-16 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Fish Bluehead sucker 

Catostomus discobolus 

BLM-WY; WYGFNSS1 

This species is found in a variety of fluvial habitats, ranging from cold, clear trout streams to warm, turbid streams, with moderate-to-fast velocity. This species prefers areas with riffles over a rocky substrate. Spawning occurs in late spring or early summer. 

High. Known occurrence in Hams Fork River, Blacks Fork River, and Green River in Wyoming. 

No. Baxter and Simon 

1970; Lee et al. 1980; Woodling 1985; WYNDD 2005. 

Flannelmouth sucker 

Catostomus latipinnis 

BLM-WY; WYGFNSS1 

This species inhabits large streams and rivers in all habitat types including riffles, runs, pools, eddies, and backwaters. This species also enters mouths of small tributary streams. Spawning occurs in spring and early summer on riffles with coarse gravel bottoms. 

High. Known occurrence in Hams Fork River, Blacks Fork River, Green River, and Bitter Creek in Wyoming. 

No. FWS 1993; 

Woodling 1985. 

Leatherside chub 

Gila copei BLM –WY; 

WYGFNSS1 

Found in pools of clear, cool streams of the Bonneville Basin and the Upper Snake River drainage, including the Bear River (Uinta County). Spawning occurs in late summer. 

Moderate. Potential occurrence in the Green River and Bear Creek in Wyoming. 

No. WYNDD 2005; 

Baxter and Simon (1970). 

Roundtail chub 

Gila robusta BLM-WY; 

WY-NSS1 

This species inhabits pools, eddies, runs, and ruffles in moderate to large rivers. Spawns in spring and early summer. 

Moderate. Known occurrence in Hams Fork and Blacks Fork rivers. 

No. Karp and Tyus 

1990; Woodling 1985; WYNDD 2005. 

Colorado cutthroat trout 

Oncorhynchus clarki pleuriticus 

BLM-WY; USFS-R4S 

Clear mountain streams within the Colorado River Basin (NRG SSP). 

None. Yes. Surveys not 

required by NRG SSP. 

WYNDD 2005. 

Bonneville cutthroat trout 

Oncorhynchus clarki utah 

BLM-WY Clear mountain streams within the Bear 

River Basin (NRG SSP). 

None. Yes. Surveys not 

required by NRG SSP. 

WYNDD 2005. 

Fine-spotted Snake River cutthroat trout 

Oncorhynchus clarki spp. 

BLM-WY Clear fast water within the Snake River 

Basin (NRG SSP). 

None. Yes. Surveys not 

required by NRG SSP. 

WYNDD 2005. 

G-17 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Plants Laramie columbine 

Aquilegia laramiensis 

BLM -WY Crevices of granite boulders and cliffs. 

Elevation: 6,400-8,000 feet elevation. Flowering period: June through August. 

Moderate. No. Suitable habitat 

for this species is present within the project area. Surveys will be conducted for this species. 

BLM 2006b; BLM 2002. 

Nelson's milkvetch 

Astragalus nelsonianus 

BLM-WY It occupies alkaline, often seleniferous, clay 

flats, shale bluffs and gullies, pebbly slopes, and volcanic cinders. Known occurrences are found primarily in sparsely vegetated sagebrush and cushion plant communities. Elevation: 5200-7600 feet. Flowering Period: Late May/August 

High. Potential habitat present. Known from basins and foothills of Carbon, Natrona, and Sweetwater counties, Wyoming, with one population in Colorado. This species has been documented within the project area. 

No. Known occurrences and suitable habitat for this species is present within the project area. Surveys will be conducted for this species. 

Spackman et al. 1997; BLM 2002; BLM 2006b; Keinath et al. 2003. 

Trelease's racemose milkvetch 

Astragalus racemosus var. treleasei 

BLM-WY Occurs mainly on outwash flats and fluted 

Badlands slopes derived from shale. Elevation: 6,500-8,200 feet Flowering period: Mid-June through July 

Moderate. No. Suitable habitat 

for this species is present within the project area. Surveys will be conducted for this species. 

Derby et al. 2006; BLM 2002. 

Cedar Rim thistle 

Cirsium aridum BLM -WY Barren, chalky hills, gravelly slopes, and fine 

textured, sandy-shaley draws. Elevation: 6,700 – 7,200 feet Flowering period: June through August. 

Moderate. Species endemic to Wind River and Green River Basins, Fremont and Sublette Cos., WY. One area of potential habitat within project area based on WYNND model. 

No. Suitable habitat present within the project area. Surveys will be conducted for this species. 

BLM 2002; BLM 2006b; Derby et al. 2006. 

G-18 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Ownbey's thistle 

Cirsium ownbeyi BLM-WY Sparsely vegetated shaley slopes in juniper, 

sagebrush, and riparian communities. Elevation: 5500-6200 feet. Flowering period June-August/July through September. 

Moderate. No. Suitable habitat 

for this species is present within the project area. Known occurrence adjacent to the project area. Surveys will be conducted for this species. 

BLM 2002; Derby et al. 2006; Keinath et al. 2003 

Large-fruited bladderpod 

Lesquerella macrocarpa 

BLM-WY Restricted to the Great Divide and Green 

River basins of Wyoming. It occurs in sparsely vegetated (Atriplex gardneri-Elymus elymoides) communities on barren, finetextured clays and shales, often with gypsum or bentonite, on low hills knolls, and colluvial fans. Elevation: 7200-7700 feet. Flowering Period: Mid May through July 

High. This species has been documented within the project area. 

No. Known occurrences and suitable habitat for this species is present within the project area. Surveys will be conducted for this species. 

BLM 2002; Keinath et al. 2003; Derby et al. 2006. 

Prostrate bladderpod 

Lesquerella prostrata 

BLM-WY Slopes and rims of whitish to reddish or gray 

limey clays and soft sandstones with a surface layer of fine gravel, or else on limestone. Elevation: 7200-7700 feet. Flowering period: Mid April-late June/early June through early July. 

Moderate. No. Suitable habitat 

is present within the project area. 

BLM 2002; Derby et al. 2006. 

G-19 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Gibbens' beardtongue 

Penstemon gibbensii 

BLM-WY This species is found in sparsely vegetated 

shale or sandy-clay slopes of the Brown's Park Formation. Associated vegetation includes piñon-juniper woodland, sagebrush, or salt desert shrub communities. Elevation: 5,500-7,700 feet. Flowering period: June through September. 

Moderate. This species could occur within potentially suitable habitat along the project route in Sweetwater and Carbon Counties, Wyoming. 

No. Suitable habitat present within the project area. Surveys will be conducted for this species. 

BLM 2002; Fertig 1994; Derby et al. 2006; BLM 2006b; Spackman et al. 1997. 

Tufted twinpod 

Physaria condensata 

BLM-WY Sparsely-vegetated shale slopes and ridges. 

Elevation: 6500-7000 feet. Flowering period: May-June/June through July. 

High. Suitable habitat present. No. Suitable habitat 

for this species is present within the project area. Known occurrence adjacent to the project area. Surveys will be conducted for this species. 

Keinath et al. 2003, Derby et al. 2006; BLM 2002. 

Persistent sepal yellowcress 

Rorippa calycina BLM -WY Riverbanks and shorelines usually on sandy 

soils near high- water lines. Elevation: 3660-6800 feet. Flowering period: May through August. 

High. Potential habitat present. This species has been documented within the project area. 

No. Known occurrences and suitable habitat for this species is present within the project area. Surveys will be conducted for this species. 

BLM 2006b; BLM 2002; Keinath et al. 2003, Derby et al. 2006. 

Laramie false sagebrush 

Sphaeromeria symplex 

BLM -WY Cushion plant communities on rocky 

limestone ridges and gentle slopes. Elevation: 7,500 – 8,600 feet Flowering period: May through August. 

Moderate. No. Suitable habitat 

for this species is present within the project area. Surveys will be conducted for this species. 

BLM 2006b; BLM 2002; Keinath et al. 2003; Derby et al. 2006. 

G-20 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Green River greenthread 

Thelesperma caespitosum 

BLM -WY; USFS- R4S 

White shale slopes and ridges of Green River Formation. Elevation: 6300 feet. Flowering period: May through June 

High. This species has been documented within the project corridor. 

No. Suitable habitat present within the project area. Surveys will be conducted for this species. 

BLM 2002; BLM 2006a; WYNDD 2005; Derby et al. 2006; Goodrich 2006. 

Meadow pussytoes 

Antennaria arcuata 

BLM-WY Moist meadows, seeps, or springs 

surrounded by sagebrush grassland. Elevation: 4950-7900 feet. Flowering period July through September. 

None. Yes. Known 

occurrences in WY are in Sweetwater River Valley, southern Wind River Range, and northern Green River Basin which are outside of the project area. 

BLM 2002; Derby et al. 2006. 

Mystery wormwood 

Artemisia biennis var. diffusa 

BLM-WY Clay flats and playas. 

Elevation: 6500 feet. Flowering period: August-September. 

None. Yes. BLM (RS) 

direction: No surveys required. 

Derby et al. 2006; BLM 2002. 

Starveling milkvetch 

Astragalus jejunus var. jejunus 

BLM-WY Dry, barren ridges and bluffs of shale, 

sandstone, clay, or cobblestones. Elevation: 6000-7100 feet. Flowering period: May through July. 

None. Yes. BLM (RS) 

direction: no surveys required for this species. 

Derby et al. 2006; BLM 2002. 

G-21 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Precocious milkvetch 

Astragalus proimanthus 

BLM-WY Cushion plant communities on rocky, clay 

soils mixed with shale on summits and slopes of white shale hills. Elevation: 6800-7200 feet. Flowering period: May through June/June through July. 

None. Yes. Species is 

narrowly endemic to the bluffs of Henry’s Fork River and vicinity of McKinnon in the southern Green River Basin (an area comprising <320 acres). This area is outside of the project area. 

Derby et al. 2006; BLM 2002. 

Small rockcress 

Boechera pusilla BLM-WY Cracks and crevices in sparsely vegetated 

granite-pegmatite outcrops surrounded by sagebrush grassland. Elevation: 8000-8100 feet. Flowering period: May through June/June through July. 

None. Yes. Endemic to 

the south Wind River Range, Fremont Co., WY (outside project area). 

Derby et al. 2006; BLM 2002. 

Wyoming Tansymustard 

Descurainia torulosa 

BLM-WY Sparsely vegetated sandy slopes at base of 

cliffs of volcanic breccia or sandstone. Elevation: 8300-10,000 feet. Flowering period: July through September. 

None. Yes. Elevational 

range of this species exceeds those present within the project area. 

Keinath et al. 2003; BLM 2002; Derby et al. 2006. 

Weber's scarlet-gilia 

Ipomopsis aggregate ssp. Weberi 

BLM-WY; FS-R2S 

Openings in coniferous forests and scrub oak woodlands. Elevation: 8,500-9,500 feet. Flowering period: June through August 

None. Yes. Elevational 

range of this species exceeds those present within the project area. 

Keinath et al. 2003; BLM 2002; Derby et al. 2006. 

G-22 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Entire-leaved peppergrass 

Lepidium integrifolium var. integrifolium 

BLM-WY Wet meadows associated with low-elevation 

riparian habitat of foothills and valley bottoms, at margins where salt accumulates. Elevation: 6170-6790 feet. Flowering period: Mid June-early July/late June through August. 

None. Yes. In WY, known 

only from the southern Overthrust Belt in Lincoln and Uinta counties, in the Bear River watershed (Outside of the project area) 

Derby et al. 2006; BLM 2002. 

Western bladderpod 

Lesquerella multiceps 

BLM-WY Dry gravelly limestone ridges and slopes with 

thin pockets of soil. Elevation: 8600 feet. Flowering period: May through July/June through early August. 

None. Yes. In Wyoming, 

known only from the Overthrust Belt in Lincoln County from montane to subalpine elevations which is outside of the project area. 

Derby et al. 2006; BLM 2002. 

Stemless beardtongue 

Penstemon acaulis var. acaulis 

BLM-WY; USFS-R4S 

Cushion plant communities on semi-barren rocky ridges and slopes. Elevation: 5900-7200 feet. Flowering period: Mid May-late June/mid June-mid July. 

None. Yes. Narrow 

endemic in southwestern Sweetwater County, known from only 3 occurrences in the vicinity of McKinnon, WY (outside project area). 

Fertig 1994; BLM 2002; Spackman et al. 1997; Derby et al. 2006. 

Opal phlox Phlox opalensis BLM-WY Clay slopes and ridges. 

 Elevation: 6700-6900 feet. Flowering period: May through June. 

None. Yes. BLM (RS) 

direction: No surveys required for this species. 

Derby et al. 2006. 

G-23 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Beaver Rim phlox 

Phlox pungens BLY-WY Sparsely vegetated slopes on sandstone, 

siltstone, or limestone substrates. Elevation: 6000-7400 feet. Flowering period: May through June. 

None. Yes. This species is 

endemic to Wind River Basin (Freemont Co., WY) which is outside of the project area 

Derby et al. 2006; BLM 2002. 

Dorn’s twinpod 

Physaria dornii BLM-WY Dry, calcareous-shaley slopes and ridges 

with mountain mahogany and rabbitbrush. Elevation: 6500-7200 feet. Flowering period: May-June/June-July. 

None. Yes. Endemic to 

Rock Creek Ridge area (outside project area). 

Keinath et al. 2003; BLM 2002; Derby et al. 2006. 

Uinta greenthread 

Thlelsperma pubescens 

BLM-WY Sparsely vegetated benches and ridges on 

coarse, cobbly soils of Bishop Conglomerate. Elevation: 8100-8900 feet. Flowering period: July through August. 

None. Yes. BLM (RS) 

direction: No surveys required for this species. 

Derby et al. 2006; BLM 2002. 

Cedar Mountain Easter Daisy 

Townsendia microcephala 

BLM-WY Rocky slopes of Bishop Conglomerate. 

Elevation: 8500 feet. Flowering period: May through July. 

None. Yes. Elevational 

range of this species exceeds those present within the project area. 

Derby et al. 2006; BLM 2002. 

G-24 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

USFS Mammals North American wolverine 

Gulo gulo USFS-R4S This species is found in tundra, boreal 

forests, and coniferous forests of western mountains. Habitat includes large, sparsely inhabited areas with an adequate prey base. Young born between January and April. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Wyoming. 

Yes. The proposed project route does not occur within the geographic range of this species. 

NatureServe 2006; USFS 2006. 

Canada lynx Lynx Canadensis USFS R4S; 

WY-NSS1 

Northern coniferous forests are the preferred habitat of the lynx. Uneven-aged stands with relatively open canopies and well-developed understories are ideal. Young born between May and July. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Wyoming, Colorado, or Kansas. The USFWS did not identify this species for analysis. 

Yes. The proposed project route does not occur within the geographic range of this species. 

NatureServe 2006; Cerovski et al. 2004; WGFD 2005c; NatureServe 2006. 

Birds Cassin's sparrow 

Aimophila cassini USFS-R2S Open grassland and short-grass plains with 

scattered bushes or shrubs, sagebrush, mesquite or yucca. May nest in grasses, in patches of ground cactus, at the base of shrubs, or in the lower branches of bushes or cacti. Breeding Season: May 1 through July 15 

Moderate. This species has been documented on all Breeding Bird Survey routes within the PNG. 

No. Derby et al 2006; 

USFS 2005; CNHP 2006; Dunning et al. 1999; Kingery 1998. 

McCown’s longspur 

Calcarius mccownii 

USFS-R2S Sparsely vegetated shortgrass prairie. Within 

Colorado, this species primarily breeds in northern Weld and northeastern Larimer counties. Breeding Season: March 15 through October 15 

High. This species has been documented on all Breeding Bird Survey and along the proposed project route routes within the PNG. 

No. NatureServe 2006; 

USFS 2005; CNHP 2006; With 1944; Derby et al 2006; Kingery 1998. 

Chestnutcollard longspur 

Calcarius ornatus USFS-R2S Medium height grass, especially meadows 

around pools. Breeding Season: May 1 through August 15 

Moderate. This species has been documented on the PNG on four of the five Breeding Bird Survey routes 

No. CNHP 2006; USFS 

2005; Derby et al. 2006; Kingery 1998. 

G-25 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Northern harrier 

Circus cyaneus USFS-R2S This species inhabits open fields, native and 

non-native grasslands, agricultural lands, and marshes. Nest sites occur on the dry or elevated ground in a variety of habitats from grasslands to marshes, with abundant ground cover such as tall reeds, cattails, shrubs, and grasses. For breeding and hunting in these habitats, the birds select areas with dense cover (e.g., swales, draws, fencerows, and canal banks). Breeding season February 1 through July 31. 

Low. Common year- round residents on the PNG. Not known to nest on the PNG. 

No. CNHP 2006; CDOW 

2006; Derby et al. 2006; USFS 2005; NatureServe 2006; Kingery 1998. . 

Grasshopper sparrow 

Ammodramus savannarum 

USFS-R2S “Mid-grass” prairie, tall-grass prairie, hay 

meadows, and open savanna. Known to nest throughout the eastern plains of Colorado with highest concentrations in Phillips, Sedgewick, Logan, Washington, and northern Yuma counties; along the Arkansas River in Kiowa, Prowers, and Bent counties; and on the Comanche National Grassland. Breeding Season: April 15 through September 15. 

Moderate. Fairly common summer resident on the PNG. This species has been documented on all Breeding Bird Survey routes on the PNG. 

No. CNHP 2006; Derby 

et al. 2006; USFS 2005; Kingery 1998. 

Black tern Chlidonias niger USFS-R2S; 

KS-SINC. 

Ponds, lakes, reservoirs, and marshes. The Kansas status and range of the Black Tern is statewide during migration; nesting has been confirmed at Cheyenne Bottoms and Quivira National Wildlife Refuges. Breeding Season: June 1 through August 15. 

Moderate. Known to breed in isolated patches in Colorado. Fairly common summer resident with limited nesting habitat on the PNG. No known occurrence in the vicinity of the proposed project route in Kansas; however, potential breeding habitat is present. 

No. USFS 2005; CNHP 

2006; Derby et al 2006; KDWP 2005; KSNHD 2005; Kingery 1998. 

G-26 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Boreal owl Aegolius funereus USFS-R4S Yes. USFS 2006. Flammulated owl 

Otus flammeoulus USFS-R4S Ponderosa pine or Douglas fir forests in the 

Ashley National Forest. Stream pediment, stream canyon, glacial canyon, limestone plateau, and limestone hill landtype associations make up nearly all the suitable habitat for this species in the Ashley National Forest. Breeding Season: May 1 through October 1.

 None. This species and its required habitat are not found within the proposed project vicinity in Wyoming. 

Yes. USFS 2006; 

NatureServe 2006. 

Great gray owl 

Strix nebulosa USFS-R4S Conifer or conifer/hardwood forest. Occurs in 

mixed conifer on the Ashley National Forest. Uses older stick nests constructed by other species. Breeding Season: May 1 through August 15. 

None. This species and its required habitat are not found within the proposed project vicinity in Wyoming. 

Yes USFS 2006; 

NatureServe 2006. 

Three-toed woodpecker 

Picoides tridactylus 

USFS-R4S Coniferous or mixed confer forests. Occurs 

in Douglas fir, spruce/fir, and mixed conifer on the Ashley National Forest. Breeding Season: May1 through July 31 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Wyoming. 

Yes. The proposed project route does not occur within the geographic range of this species. 

USFS 2006; Natureserve 2006. 

Amphibians Columbia spotted frog 

Rana luteiuentris USFS-R4S This species inhabitas ponds, sloughs, and 

small streams in the foothills and montane zones. Deposits eggs in late May through June. 

None. Yes. This is not 

known to occur in the Green River portion of the Ashley NF. 

Cervoski et al. 2004 

G-27 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Plants Dwarf milkweed 

Asclepias uncialis USFS-R2S Grassy hills, escarpments, and mesas in 

semi-arid shortgrass prairie. Elevation: 4000-6500 feet Flowering period: Late April-May/ June-early July. 

Moderate. Surveys required by USFS. No surveys required by the BLM. 

No. Suitable habitat for this species is present within the project area. Surveys will be conducted for this species. 

NRG 2006; Derby et al. 2006. 

Prairie moonwort 

Botrychium campestre 

USFS-R2S Dry, gravelly hillsides, often occurring with 

little bluestem. Elevation: 3700-10,800 feet in Colorado. Flowering period: Leaves appear in early spring, spores produced from spring-July. 

Moderate No. Suitable habitat 

present on PNG. 

NRG 2006; Derby et al. 2006. 

Wyoming feverfew 

Parthenium alpinum 

Former USFS-R2S 

This species is a mat-forming perennial herb that occurs along stony ridges and low hills, often dominated by cushion plant communities. Elevation: 5400-5800 feet. Flowering period: May. 

High. It is known in Colorado from occurrences in Weld County. 

No. Suitable habitat for this species is present within the project area. Surveys will be conducted for this species. 

Derby et al. 2006. 

Graham columbine 

Aquilegia grahamii USFS- R4S Sandy drip lines in hanging gardens of 

shaded canyons in Weber sandstone. Elevation: 7600 feet. Flowering period: June through July. 

None. Yes. No suitable 

habitat found within the project area. 

Atwood et al. 1991. 

Petiolate wormwood 

Artemisia campestris petiolata 

USFS- R4S Ponderosa pine-lodgepole pineArctostaphylos communities. 

Elevation: 8900 feet. Flowering period: July through August. 

None. Yes. Elevational 

range of this species exceeds those present within the project area. 

Atwood et al. 1991. 

G-28 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Dainty moonwort 

Botrychium crenulatum 

USFS- R4S This species is found in marshy areas and 

adjacent to springs. Elevation: 8000 feet. Fronds mature June through July. 

None. Yes. Known from 

Cache, Juab, Summit, and Wasatch counties in Utah (outside the project area). 

Atwood et al. 1991. 

Slender moonwort 

Botrychium lineare USFS- R4S This species is found in meadows, woodlands, 

and on shelves on limestone cliffs. Elevation: 4900-6600 feet. Spores mature late June through July. 

None. Yes. Known from 

Salt Lake County in Utah (outside the project area). 

Atwood et al. 1991. 

sandhill goosefoot 

Chenopodium cycloides 

USFS-R2S Sandy soils on dunes and stabilized sand in 

blowouts. Elevation: 4000-5500 feet in Colorado. Flowering period: July through August/August through September. 

None. Yes. No suitable 

habitat found within the project area. 

NRG 2006; Derby et al. 2006. 

Brownie ladyslipper 

Cypripedium fasciculatum 

USFS- R4S This species is found growing in the duff layer 

of spruce-fir and lodgepole pine forests. Elevation: 8000-9000 feet. Flowering period: June through July. 

None. Yes. Elevational 

range of this species exceeds those present within the project area. 

Atwood et al. 1991. 

Untermann daisy 

Erigeron untermannii 

USFS- R4S This species is found in P-J, mountain 

mahogany, limber and bristlecone pine, and sagebrush communities on calcareous shales and sandstones. Elevation: 7000-9400 feet. Flowering period: May through June. 

None. Yes. Endemic to 

Utah in Duchesne County (outside the project area). 

Atwood et al. 1991. 

Goodrich stickleaf 

Mentzelia goodrichii 

USFS- R4S This species is found on steep, white, marly 

calciferous shales of the Green River Formation. Elevation: 8100-8800 feet. Flowering period: July through August. 

None. Yes. Endemic to 

southern Duchesne County, Utah (outside the project area). 

Atwood et al. 1991. 

G-29 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Arctic poppy Papaver radicatum 

var. pygmaeum 

USFS- R4S This species is found in rock outcrops in 

alpine tundra communities. Elevation: 11,100-12,800 feet. Flowering period: July through August. 

None. Yes. Elevational 

range of this species exceeds those present within the project area. 

Atwood et al. 1991. 

State Status Mammals Northern pocket gopher 

Thomomys talpoides 

CO-SOC Found in different habitat types including 

agricultural and pasture lands, semidesert shrublands, and grasslands at lower elevations upwards into alpine tundra. This species is common in a variety of habitats above about 1,525 m (5,000 ft) in elevation. Young born between March and mid-June. 

Low. No known occurrence of this species within the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

No. CNHP 2006; CDOW 

2006; CDOW no date; Derby et al. 2006; NatureServe 2006. 

Franklin’s ground squirrel 

Spermophilus franklinii 

KS-SINC Associated with the zone where tallgrass 

prairie and deciduous forest come into contact. It prefers the sheltered cover of dense grasses, weedy fields and wastelands, and shrubby forest edges. Young are born in May or June. 

Low. No known occurrence within the vicinity of the proposed project route in Kansas; however, limited suitable habitat is present. 

No. KDWP 2005; 

KSNHD 2005; NatureServe 2006. 

Long-legged myotis 

Myotis volans WY-NSS2 Found in conifer and deciduous forests. 

Roosts include tree and rock crevices, snags and buildings. Pups born between May and August. 

Moderate. This species has been documented along the proposed project route in Wyoming. 

No. WYNDD 2005; 

Derby et al. 2006; Cerovski et al. 2004; WGFD 2005c; Ellison 2003. 

G-30 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Pallid bat Antrozous pallidus WY-NSS2; 

KS-SINC 

Generally found in desert and grassland habitats. Roosts in small crevices in buildings, rocks and other open places. Pups born between May and July. 

Moderate. This species has been documented along the proposed project route in Wyoming. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

No. WYNDD 2005; 

Derby et al. 2006; Cerovski et al. 2004; KDWP 2005; KSNHD 2005; WGFD 2005c; KSNHD 2005; Ellison 2003. 

Eastern spotted skunk 

Spilogale putorius KS-T w/CH This species prefer forest edge and upland 

grassland prairie, especially if rock outcrops and shrubs are present. Their dens are located below ground in grassy banks, rocky crevices or along fence rows, as well as above ground in hay stacks, woodpiles, brushy heaps, hollow logs, and abandoned buildings or outbuildings. Young are born in May or June. 

Moderate. The species is known to occur along the proposed project route in Kansas. Designated critical habitat occurs in three counties crossed by the proposed route. 

No. KDWP 2005; 

KSNHD 2005; KDWP 2006. 

Northern myotis 

Myotis septentrionalis 

WY-NSS2 The northern myotis primarily inhabits forested 

regions. In Wyoming, it can be found in wooded riparian zones in badlands and prairies to higher elevation conifer and deciduous woodlands. During summer, it roosts in crevices and cavities of trees, under loose bark, and occasionally in buildings. During winter, it usually hibernates in caves and abandoned mines. This species does not reproduce within or near the proposed project route. 

None. This species and its required habitat are not found within the proposed project vicinity in Wyoming. 

Yes. The proposed project route does not occur within the geographic range of this species. 

WGFD 2005b; WYNDD 2005; Derby et al. 2006; Cervoski et al 2004; WGFD 2005c. 

G-31 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Kit fox Vulpes macrotis CO-SOC This species inhabits semidesert shrubland 

and margins of pinon-juniper woodlands, saltbruxh, shadscale, sagebrush, and greasewood are commonly found. Appears to rely heavily on lagomorphs as a staple diet but wil also feed on ground-nesting birds, reptiles, and insects. Only one small population is known to occur in Colorado, near Delta, CO. Pups are born in February or March. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

Yes. The proposed project route does not occur within the geographic range of this species. 

CNHP 2006; Derby et al. 2006; CDOW no date; CDOW 2005. 

Birds Snowy plover Charadrius 

alexandrinus 

KS-T; COSOC This species inhabits open alkaline flats, mudflats, sandy shorelines, sandbars with 

little vegetation along rivers, lakes, ponds, and marshlands. Nesting often occurs on white saline flats. Breeding season: May 1 through August 15. 

Low. No known occurrences in the proposed project vicinity in Colorado or Kansas; however, suitable breeding habitat is present. 

No. CNHP 2006; CDOW 

2006; Derby et al. 2006; KDWP 2005; Kingery 1998. 

Black Rail Laterallus 

jamaicensis 

KS-SINC Wet meadows or meadows near marshes. 

While it may use cattails and similar habitats, shallow wetlands with short dense vegetation is preferred. The major threat to the Black Rail is the disappearance of small shallow wetlands. Breeding Season: April 1 through May 31. 

Low. No known occurrences within the vicinity of the proposed project route in Kansas; however, suitable breeding habitat is present. 

No. KDWP2005; 

KSNHD 2005; Eddleman 1994. 

G-32 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Short-eared owl 

Asio flammeus KS-SINC Short-eared owls nest in prairies, marshes, 

fallow fields, and grain fields. Nests are often in wheatfields or alfalfa fields. They are shallow scrapes lined with vegetation and feathers and are often placed at the base of a tall weed. These nests are often destroyed either by farming operations or by predators. Breeding Season: This species is not known to breed in the proposed project vicinity. 

Moderate. No known occurrences within the vicinity of the proposed project route; however, suitable wintering habitat is present. . It is a transient and an irregular or local winter resident throughout Kansas. Most records of occurrence are from October 16 to April 15, but a few may occur at any time in proper habitat. 

No. KDWP 2005; 

KSNHD 2005; Kingery 1998. 

Bobolink Dolichonyx 

oryzivorus 

KS-SINC The Bobolink prefers tall grasslands such as 

wet meadows, hayfields, and moist tallgrass prairie. Migrants frequently visit alfalfa fields. They nest on the ground in a shallow depression made of grasses and weed stems. Breeding Season: May 1 through July 31. 

Low. No known occurrence within the vicinity of the proposed project route in Kansas; however, suitable breeding habitat is present. This species casually occurs in western Kansas, where it may possibly breed very locally. Nesting has been confirmed from Barton, Cloud, and Stafford counties. 

No. KDWP 2005; 

KSNHD 2005; Kingery 1998; Martin and Gavin 1995. 

Common loon Gavia immer WY-NSS1 Lakes above 6,000 feet. Lower elevations 

during migration. Nests next to water, frequently on an island. Breeding Season: This species does not breed within the vicinity of the proposed project route. 

Low. This species was documented in the vicinity of the proposed project route in Wyoming. 

Yes. Occurrence would be limited to migrants. 

Cerovski et al. 2004; McIntyre et al. 1997; WYNND 2005; WGFD 2005d. 

G-33 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Plains sharptailed grouse Tympanuchus phasianellus 

jamesii 

CO-E Occurs in Gambel oak and other shrublands 

lacking conifers. Croplands and riparian areas are also used, especially in fall and winter. Leks are located in wet meadows, ridges and knolls, or recently burned areas. Rare to uncommon resident in Douglas County. Breeding Season: March 1 through July 31. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Wyoming. 

Yes. The proposed project route occurs outside of the known geographic range for this species. 

CDOW no date; CNHP 2006; CDOW 2005; Mitchell et al. 2002; Kingery 1998. 

Greater sandhill crane 

Grus Canadensis tabida 

CO-SOC Migrants occur on mudflats around 

reservoirs, in moist meadows, and in agricultural areas. Breeding birds are found in parks with grassy hummocks and watercourses, beaver ponds, and natural ponds lined with willows or aspens. In Colorado, abundant spring and fall migrant in the San Luis Valley. Abundant in fall Routte County. Migrant, primarily in spring, in western valleys from Montrose County northward and east to Eagle and Gunnison counties. Breeding Season: May 1 through July 31. 

Low. Occurrence would be limited to accidental migrants in Colorado. 

Yes. Known distribution outside the vicinity of proposed project route in Colorado. Occurrence would be limited to accidental migrants. 

CNHP 2006; CDOW 2006; Derby et al. 2006; CDOW no date; Kingery 1998. 

Whip-poor-will Camprimulgus 

vociferus 

KS-SINC Woodlands. The Whip-poor-will is a locally 

common transient and summer resident in the eastern part of the state. They have been recorded to occur from April 3 to October 14. Breeding Season: June 1 through July 31. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Kansas. 

Yes. Breeding is limited to the eastern part of Kansas. Occurrence would be limited to accidental migrants. 

KDWP 2005; KSNHD 2005; Kingery 1998; 

G-34 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Chihuahuan raven 

Corvus cryptoleucus 

KS-SINC Arid areas, particularly desert and scrubby 

grasslands. In Kansas, their breeding range formerly encompassed the western part of Kansas along the Colorado border eastward to as far as Ford, Kearny, Finney, and Gray counties. Breeding Season: April 1 through July 31. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Kansas. 

Yes. Breeding is limited to the eastern part of Kansas. Occurrence would be limited to accidental migrants. 

KDWP 2005; KSNHD 2005; Kingery 1998; Bernarz and Raitt 2002. 

Curve-billed Thrasher 

Toxostoma curvirostre 

KS-SINC During the Summer, restricted to arid parts of 

the southwest, usually in sandsage grasslands and usually near a cholla cactus. In the winter, they wander and have been reported in barnyards, windbreaks, cemeteries, and brushy ravines. Breeding Season: May 1 through July 31. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Kansas. 

Yes. KDWP 2005; 

KSNHD 2005; Kingery 1998; Tweit 1996. 

Cerulean warbler 

Dendroica cerulean 

KS-SINC The Cerulean Warbler can be found in 

mature, deciduous trees along rivers. Breeding Season: This species is not known to breed within the vicinity of the proposed project route. 

Low. No known occurrence within the vicinity of the proposed project route; however, suitable foraging habitat is present. In the western part of Kansas, they might be found in shelter belts, along rivers, or in towns mainly in the canopies of trees. 

Yes. Occurrence would be limited to accidental migrants. 

KDWP 2005; KSNHD 2005; Kingery 1998; Hammel 2000. 

Yellowthroated warbler 

Dendroica dominica 

KS-SINC The Yellow-throated Warbler is confined 

mostly to riverine forests, particularly in southeastern Kansas. It prefers tall sycamores for nesting and foraging. Breeding Season: This species does not breed within the vicinity of the proposed project route. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Kansas. 

Yes. Occurrence would be limited to accidental migrants. 

KDWP 2005; KSNHD 2005; Kingery 1998; Hall 1996. 

G-35 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Reptiles Glossy snake Arizona elegans KS-SINC Dry, open, sandy areas. The range of the 

Glossy Snake is in western Kansas, southwest of a line from Cheyenne, Rice, and Harvey counties. Eggs hatch in late summer or early fall. Not all adult females are reproductive every year; perhaps female reproduction is biennial at most. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

No. KDWP2005; 

KSNHD 2005; NatureServe 2006. 

Western hognose snake 

Heterodon nasicus KS-SINC Grassland or sand prairie in the western twothirds of Kansas reaching its peak 

abundance on the High Plains. Lays clutch in June through July. Females may oviposit in alternate years. Sexually mature in second year. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

No. KDWP2005; 

KSNHD 2005; NatureServe 2006. 

Common garter snake 

Thamnophis sirtalis CO-SOC In Colorado, the common garter snake 

inhabits marshes, ponds, and the edges of streams. For the most part, it is restricted to aquatic, wetland, and riparian habitats along the floodplains of streams. Occurs in northeastern Colorado along the South Platte River and its tributaries at elevations below 6,000 feet (1,830 m) and in the North Fork Republican River drainage in Yuma County at about 3,500–3,600 feet (1,065–1,100 m). Gives birth in July or August. Sexually mature in 1-2 years. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

No. Derby et al. 2006; 

CNHP 2006; CDOW 2006; CDOW no date; NatureServe 2006. 

G-36 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Eastern hognose snake 

Heterodon platirhinos 

KS-SINC Forested areas of eastern Kansas to the 

open prairies along the Colorado border. It prefers sandy areas and is most common along valleys of rivers and in the eastern tier of counties. Most of Kansas is not optimal habitat for this snake and populations of this species in Kansas are probably somewhat isolated. Lays clutch in May-August. Eggs hatch in 39­65 days. Usually sexually mature in 2nd year. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

No. KDWP2005; 

KSNHD 2005; NatureServe 2006. 

Yellow mud turtle 

Kinosternon flavescens 

CO-SOC Typical habitat in Colorado includes 

permanent and intermittent streams, permanent ponds, isolated temporary ponds and rain pools far from permanent water, irrigation ditches, soggy fields, and the surrounding grasslands and sandhills. Occurs in eastern Colorado in the Republican, Arkansas, and Cimarron River drainages at elevations below 5,000 feet (1,525 m). Known to occur in southeastern Colorado at about 3,800–5,000 feet (1,160– 1,525 m). Young are born early-June to mid-July. 

Moderate. This species has been documented along the proposed project route in Colorado. 

No. Derby et al. 2006; 

CNHP 2006; CDOW 2006; CDOW no date; NatureServe 2006. 

G-37 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Amphibians Northern cricket frog 

Aeris crepitans CO-SOC In Colorado, the northern cricket frog occurs 

along the sunny, muddy, or marshy gently sloping edges of permanent or semipermanent ponds, reservoirs, and streams, and along irrigation ditches, in pastures, and in sand-hill country. It is known from the North Fork and South Fork of the Republican River in Yuma County (about 3,500–3,600 feet [1,070–1,100 m]) and perhaps also from the South Platte River drainage in Weld and Morgan counties. Lays clutch of up to a few hundred eggs in spring or summer. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

No. Derby et al. 2006; 

CNHP 2006; CDOW 2006; CDOW no date; NatureServe 2006. 

Plains leopard frog 

Rana blairi CO-SOC The plains leopard frog inhabits the margins 

of streams, natural and artificial ponds, reservoirs, creek pools, irrigation ditches, and other bodies of water in plains grassland, sandhills, stream valleys, or canyon bottoms. Occurs in the Great Plains portion of the Arkansas River drainage in southeastern Colorado and in the Republican River drainage in northeastern Colorado at elevations principally below 5,000 feet (1,525 m) but reaching 6,000 feet (1,830 m) in the southwestern portions of Las Animas and Pueblo counties. Clutch of up to a few thousand eggs in spring, summer, or early fall, often after heavy rains. Larvae from early clutches metamorphose in summer; those from late clutches may overwinter and metamorphose the following spring. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

No. Derby et al. 2006; 

CNHP 2006; CDOW 2006; CDOW no date; NatureServe 2006. 

G-38 
Table G-1 Analysis of Special Status Species 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Fish Plains minnow 

Hybognathus placitus 

CO-E; KSSINC This species is most commonly associated with shallow areas in 

intermittent and perennial streams. They are able to tolerate variable habitat conditions including dewatered reaches. Spawn May through July. 

Moderate to high. Potential occurrence in the South Platte and Republican rivers in Colorado and Republican River in Kansas. 

No Woodling 1985 

Brassy minnow 

Hybognathus hankinsoni 

CO-T; KSSINC This species occurs in a variety of habitats including shallow streams and pools. 

Spawn in the spring. 

Moderate to high. Potential occurrence in the South Platte, Republican, and Aikaree rivers in Colorado and Republican River in Kansas. 

No. Woodling 1985 

Orangethroat darter 

Etheostoma spectable 

CO SOC This species is found in shallow riffles or 

runs over sand-gravel substrates. Spawning probably occurs in March through May. 

Moderate. Known occurrence in the North Fork Republican River and Chief Creek. 

No. Swigle 2006; 

Woodling 1985 

Stonecat Noturus flavus CO SOC This species is found in swift portions of 

riffles and runs near woody debris, cobbles, or sand-gravel substrates. Spawns in June through August. 

Low. Known occurrence in the Republican River drainage. 

No Swigle 2006; 

Woodling 1985 

Suckermouth minnow 

Phenacobius mirabalis 

CO-E Species is usually found in riffle areas of 

warm prairie streams of all sizes. Spawning suspected to occur in April through August. 

Moderate. Potential occurrence in the South Platte and Republican rivers. 

No. Woodling 1985 

Arkansas River speckled cub 

Macrhybopsis tetranema 

KS-E This species prefers shallow channels of 

permanently flowing streams with clean fine sand. 

None. Present distribution restricted to lower portions of Arkansas River basin in Kansas. 

Yes. KDWP website 

G-39 
Table G-1 Analysis of Special Status Species 

1 Status Definitions: 

FE= Federal Endangered FT= Federal Threatened FTw/CH= Federal Threatened with Critical Habitat FC= Federal Candidate CO-E= Colorado Endangered CO-T= Colorado Threatened CO-SOC= Colorado Species of Concern KS-E= Kansas Endangered 

2 Species occurrence analyzed for states where they have status. 

Common 

Name Scientific Name Status 1 Habitat Association Potential for Occurrence 2 

Eliminate from 

Detailed Analysis Reference 

Flathead chub 

Platygobio gracilis 

KS-T This species occurs from the Rio Grande 

to the Arctic Circle in small creeks and the largest rivers that have turbid fluctuating water levels and unstable sand bottoms. This species relies on flood flows to spawn successfully. Spawning occurs after water levels have subsided after peak flows, when water temperatures are warmer and substrate is more stable. Spawning period: March 15 through 

June 15. 

None. In Colorado, existing populations occur in the Arkansas River Basin. Occurrence in Kansas restricted to the Republican and Cimarron rivers. 

Yes. GPNC 2005b; 

KWPD website. 

Invertebrates Cylindrical papershell 

Anodontoides ferussacianus 

KS-SINC These mussels can occur in impoundments 

and streams and can utilize a wide range of substrates from silt to rubble. In Kansas, known only from the Smoky Hill River. They may occur in the lower Republican and lower Solomon rivers. 

Moderate. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is crossed. 

No. KDWP2005; 

KSNHD 2005. 

Wabash pigtoe mussel 

Fusconaia flava KS-SINC This mussel is an obligate riverine species 

that prefers gravel substrates and moderate currents. Fish hosts include crappies and bluegill. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Yes. The proposed project route occurs outside of the known geographic range for this species. 

KDWP2005; KSNHD 2005. 

KS-T= Kansas Threatened KS-T w/CH= Kansas Threatened with Critical Habitat KS-SINC= Kansas Species in Need of Conservation WY-NSS1= Wyoming Critically Imperiled Species WY-NSS2= Wyoming Imperiled Species BLM-WY = Wyoming BLM sensitive. USFS-R2S = USFS Region 2/Pawnee National Grassland sensitive species USFS-R4S = USFS Region 4/Ashley National Forest sensitive species PNG- Pawnee National Grassland 

G-40 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Federal Mammals Black-footed ferret 

Mustela nigripes FE; CO-E; 

WY-NSS1; KS-E 

Low. Historic occurrence within the vicinity of the proposed project route. Prairie dog towns in WY counties 

Low. Historic occurrence within the vicinity of the proposed project route. Prairie dog towns in Morgan, Washington, and Weld counties, Colorado. 

Low. Historic occurrence within the vicinity of the proposed project route; no known occurrence in Kansas since 1957. 

Preble's meadow jumping mouse 

Zapus hudsonius preblei 

FT; CO-T Moderate. This species has been 

documented along the proposed project route. Riparian habitats in Albany and Laramie counties Wyoming. Designated critical habitat occurs outside of the proposed project vicinity. 

Moderate. This species has been documented along the proposed project route. Riparian habitats in Morgan and Weld counties, Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Birds Bald eagle Haliaeetus 

leucocephalus 

FT; CO-T; WY-NSS2; KS-T 

Moderate. This species has been documented along the proposed project route in Wyoming. 

Moderate. This species has been documented along the proposed project route in Colorado. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable breeding habitat is present. 

Yellow-billed cuckoo 

Coccyzus americanus 

FC; BLM-WY; WY-NSS2 

Low. This species has been documented within the vicinity of proposed project route in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Whooping crane 

Grus americana FE; CO-E; 

KS-E 

Low. Affected by water depletions to the Platte River in Wyoming. 

Low. Occurrence of this species along the proposed project route would be limited to migrating individuals from the ArkansasWood Buffalo population in eastern Colorado and Kansas. Affected by water depletions to the Platte River in Colorado. 

Low. Occurrence of this species along the proposed project route would be limited to migrating individuals from the Arkansas-Wood Buffalo population in Kansas. Also affected by proposed project activities occurring during migration in Barton, McPherson, Rice, Russell, Sheridan, and Trego County, Kansas. 

G-41 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Interior least tern 

Sterna antillarum athalassos 

FE; KS-E; CO-E 

None. Affected by water depletions to the Platte River in Wyoming and Colorado 

Low. In Colorado: Adobe Creek and Nee Noshe Reservoirs, Kiowa Co., and Horse Creek Reservoir, Otero Co. Affected by water depletions to the Platte River in Wyoming and Colorado 

None. In Kansas: Quivira National Wildlife Refuge (Stafford Co.) and on Cimarron River in Meade Co.; none documented on Arkansas River or Missouri River in Kansas. Affected by proposed project activities occurring during migration in Barton and Rice County, Kansas. 

Piping plover Charadrius 

melodus circumcinctus 

FT; CO-T; KST Low. Affected by water depletions to the Platte River in Wyoming. Low. Current breeding range occurs along the Platte River, the Arkansas River, 

reservoirs in eastern Colorado. Affected by water depletions to the Platte River Colorado. 

Low. Affected by proposed project activities occurring during migration in Barton and Rice County, Kansas. 

Lesser prairie chicken 

Tympanuchus pallidicinctus 

FC; CO-T None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Colorado. 

Low. No known occurrence within the vicinity of the proposed project route in Kansas; however, potential breeding habitat occurs in Kansas south of I-70 in Trego County and in Ellis County. 

Amphibians Wyoming toad Bufo baxteri FE, WY-NSS1 Low. An historic observation of this 

species was documented along the proposed project route in Laramie River Valley in Albany County, Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Fish Bonytail Gilia elegans FE; CO E; 

USFS-R4S 

Low. Critical habitat and historic occurrence in the Green River. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Colorado Pikeminnow 

Plychocheilus lucius 

FE; CO-E Low. Critical habitat and historic 

occurrence in the Green River. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Humpback chub 

Gilia cypha FE; CO E; 

USFS-R4S 

Low. Critical habitat and historic occurrence in the Green River. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

G-42 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Razorback sucker 

Xyrauchen texanus 

FE; CO-E; USFS-R4S 

Low. Critical habitat and historic occurrence in the Green River. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Pallid Sturgeon Scaphirhynchus 

albus 

FE; KS-E None. This species and its required 

habitat are not found within the proposed project vicinity in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

Low. Known occurrence in the Platte River below the Elk River confluence. 

Plants Colorado butterfly plant 

Gaura neomexicana ssp. coloradensis 

FT High. Critical and Suitable habitat for 

this species is present within the project area. 

High. Critical and Suitable habitat for this species is present within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Blowout penstemon 

Penstemon haydenii 

FE Low. Endemic to sand dunes south of 

Ferris Mountains in Carbon County, WY. Potential habitat may be present in the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Ute ladies'tresses 

Spiranthes diluvialis 

FT ; USFSR4S Moderate. Suitable habitat for this species is present within the project 

area. 

Moderate. Suitable habitat for this species is present within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Western prairie fringed orchid 

Platanthera praeclara 

FT Moderate. Suitable habitat for this 

species is present within the project area. 

Moderate. Suitable habitat for this species is present within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

BLM Mammals Fringed myotis Myotis 

thysanodes 

BLM-WY; WY-NSS2; USFS-R2S 

Low. This species has been documented in the vicinity of the proposed project route. 

Low. No roosts or maternity colonies are known to occur on the PNG; however, suitable habitat is present on the PNG. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Long-eared myotis 

Myotis evotis BLM-WY; 

WY-NSS2 

Moderate. This species has been documented along the proposed project route. 

Low. No known occurrence within the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Spotted bat Euderma 

maculatum 

BLM-WY; USFS-R4S; WY-NSS2 

Low. No known occurrence in the vicinity of the proposed project route in Wyoming; however, suitable habitat is present. 

Low. No known occurrence within the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

G-43 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Townsend's big-eared bat 

Plecotus townsendii 

BLM-WY; USFS-R4S WY-NSS2; CO-SOC; KSSINC 

Low. This species has been documented within the vicinity of the proposed project route in Wyoming. 

Low. No known occurrence within the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

Low. No known occurrence within the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

Pygmy rabbit Brachylagus 

idahoensis 

BLM –WY Moderate. This species has been 

documented within the vicinity of the proposed project route. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Swift fox Vulpes velox CO-SOC; 

USFS-R2S; BLM-WY 

Moderate. This species has been documented within the vicinity of the proposed project route. 

High. This species has been documented within the vicinity of the proposed project route in Colorado. This species has been documented and is widespread on the PNG. 

Moderate. No known occurrences in the proposed project vicinity in Kansas; however, suitable breeding habitat is present. 

White-tailed prairie dog 

Cynomys leucurus 

BLM-WY Moderate. This species has been 

documented within the vicinity of the proposed project route in Wyoming. 

Moderate. This species has been documented within the vicinity of the proposed project route in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Black-tailed prairie dog 

Cynomys ludovicianus 

BLM-WY; USFS-R2S; CO-SOC 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Wyoming. 

High. This species has been documented along the proposed project route in Colorado. Numerous active colonies have been documented on the PNG. 

Moderate. No known occurrences in the proposed project vicinity in Kansas; however, suitable breeding habitat is present. 

Idaho pocket gopher 

Thomomys idahoensis 

BLM-WY Low. No known occurrence of this 

species within the vicinity of the proposed project route in Wyoming; however, suitable habitat is present. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Wyoming pocket gopher 

Thomomys clusius 

BLM –WY Moderate. This species has been 

documented along the proposed project route in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Birds Burrowing owl Athene 

cunicularia 

USFS-R2S; BLM-WY; COT 

High. This species has been documented along the proposed project route in Wyoming. 

High. This species has been documented along the proposed project route in Colorado. This species has been documented on all Breeding Bird Survey routes on the PNG. 

Moderate. No known occurrences in the proposed project vicinity in Kansas; however, suitable breeding habitat is present. 

G-44 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Mountain plover 

Charadrius montanus 

BLM-WY; COSOC; USFSR2; KS-SINC High. This species was documented within the proposed project corridor in Wyoming High. This species was documented within the proposed project corridor in Colorado. Occurrence surveys conducted on the PNG 

in the mid 1990’s show widespread use of the PNG by this species for both nesting and foraging. 

Moderate. No known occurrences along the proposed project route in Kansas; however, suitable breeding habitat is present. 

Brewer's sparrow 

Spizella breweri BLM-WY; 

USFS-R2S 

High. This species was documented along the proposed project route in Wyoming. 

High. This species was documented along the proposed project route in Colorado. This species has been documented on all Breeding Bird Survey routes on the PNG. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Ferruginous hawk 

Buteo regalis CO-SOC; 

BLM-WY; USFS-R2S; KS-SINC 

High. This species was documented along the proposed project route in Wyoming. 

High. This species was documented along the proposed project route in Colorado. Known nesting and occurrence on the PNG. 

Moderate. No known occurrences along the proposed project route in Kansas; however, suitable breeding habitat is present. 

Loggerhead shrike 

Lanius ludovicianus 

BLM-WY; USFS-R2S 

High. This species was documented along the proposed project route in Wyoming. The BLM identified this species for detailed analysis. 

High. This species has been documented on the PNG on all Breeding Bird Survey routes. 

Moderate. No known occurrences in the proposed project vicinity in Kansas; however, suitable breeding habitat is present. 

Long-billed curlew 

Numenius americanus 

CO-SOC; BLM-WY; USFS-R2S; KS-SINC 

Moderate. This species was documented along the proposed project route in Wyoming. 

Low. This species was documented along the proposed project route in Colorado. Incidental observations on the PNG. 

Low. No known occurrences along the proposed project route in Kansas; however, suitable breeding habitat is present. 

Northern goshawk 

Accipiter gentiles 

BLM-WY; USFS-R4S 

Moderate. This species was documented within the proposed project are in Wyoming. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Colorado. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Kansas. 

Golden eagle Aquila 

chrysaetos 

BLM-WY; KS-SINC 

High. This species was documented along the proposed project route in Wyoming. 

Moderate. No known occurrences along the proposed project route in Colorado; however, suitable breeding habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable foraging habitat is present. 

Peregrine falcon 

Falco peregrinus 

KS-E; BLMWY; USFSR4S Moderate. This species was documented along the proposed project route in Wyoming. Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable foraging habitat 

is present. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable foraging habitat is present. 

G-45 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Sage sparrow Amphispiza belli BLM-WY Moderate. This species was 

documented along the proposed project route in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Sage thrasher Oreoscoptes 

montanus 

BLM-WY Moderate. This species was 

documented along the proposed project route in Wyoming. 

Low. No known occurrences in the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Trumpeter swan 

Cygnus buccinator 

BLM-WY; WY-NSS2 

Low. Limited to migrant habitat use. None. This species and its required habitat 

are not found within the vicinity of the proposed project route in Colorado. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Kansas. 

White-faced ibis 

Plegadis chihi BLM-WY Moderate. This species has been 

documented along the proposed project route in Wyoming. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable breeding habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable breeding habitat is present. 

Greater sagegrouse Centrocercus urophasianus CO-SOC; BLM-WY; 

WY-NSS2; USFS-R4S 

High. This species has been documented within the vicinity of the proposed project route. 18 leks have been documented within 1 mile of the proposed project route. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Kansas. 

Reptiles Midget faded rattlesnake 

Crotalus viridis concolor 

BLM-WY; COSOC Moderate. This species has been documented along the proposed 

project route in Wyoming. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Amphibians Western boreal toad 

Bufo boreas boreas 

CO-E; BLMWY; WYNSS2 Moderate. This species has been documented along the proposed project route in Wyoming. Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Great Basin spadefoot toad 

Spea intermontana 

BLM-WY High. This species has been 

documented along the proposed project route in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Spotted frog Ranus pretiosa BLM-WY Low. No known occurrence in the 

vicinity of the proposed project route in Wyoming; however, suitable habitat is present. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

G-46 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Northern leopard frog 

Rana pipiens BLM-WY; 

USFS-R2S; CO-SOC. 

High. This species has been documented along the proposed project route in Wyoming. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Fish Bluehead sucker 

Catostomus discobolus 

BLM-WY; WYGF-NSS1 

High. Known occurrence in Hams Fork River, Blacks Fork River, and Green River in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Flannelmouth sucker 

Catostomus latipinnis 

BLM-WY; WYGF-NSS1 

High. Known occurrence in Hams Fork River, Blacks Fork River, Green River, and Bitter Creek in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Leatherside chub 

Gila copei BLM-WY; 

WYGF-NSS1 

Moderate. Potential occurrence in the Green River and Bear Creek in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Roundtail chub Gila robusta BLM-WY; 

WY-NSS1 

Moderate. Known occurrence in Hams Fork and Blacks Fork rivers in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Plants Laramie columbine 

Aquilegia laramiensis 

BLM -WY Moderate. Suitable habitat for this 

species is present within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Nelson's milkvetch 

Astragalus nelsonianus 

BLM-WY High. Potential habitat present. 

Known from basins and foothills of Carbon, Natrona, and Sweetwater counties, Wyoming, with one population in Colorado. This species has been documented within the project area. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Trelease's racemose milkvetch 

Astragalus racemosus var. treleasei 

BLM-WY Moderate. Suitable habitat for this 

species is present within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

G-47 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Cedar Rim thistle 

Cirsium aridum BLM -WY Low. One area of potential habitat 

within project area based on WYNND model. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Ownbey's thistle 

Cirsium ownbeyi 

BLM-WY Moderate. Suitable habitat for this 

species is present within the project area. Known occurrence adjacent to the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Large-fruited bladderpod 

Lesquerella macrocarpa 

BLM-WY High. This species has been 

documented within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Prostrate bladderpod 

Lesquerella prostrata 

BLM-WY Moderate. Suitable habitat is present 

within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Gibbens' beardtongue 

Penstemon gibbensii 

BLM-WY Moderate. This species could occur 

within potentially suitable habitat along the project route in Sweetwater and Carbon Counties, Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Tufted twinpod Physaria 

condensata 

BLM-WY High. Suitable habitat for this species 

is present within the project area. Known occurrence adjacent to the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Persistent sepal yellowcress 

Rorippa calycina 

BLM -WY High. Known occurrences and suitable 

habitat for this species is present within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Laramie false sagebrush 

Sphaeromeria symplex 

BLM -WY Moderate. Suitable habitat for this 

species is present within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Green River greenthread 

Thelesperma caespitosum 

USFS- R4S; BLM -WY 

High. This species has been documented within the project corridor. Suitable habitat present within the project area 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

G-48 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

USFS Birds Cassin's sparrow 

Aimophila cassini 

USFS-R2S Moderate. No known occurrences in 

the proposed project vicinity in Wyoming; however, suitable breeding habitat is present. 

Moderate. This species has been documented on all Breeding Bird Survey routes on the PNG. 

Moderate. No known occurrences in the proposed project vicinity in Kansas; however, suitable breeding habitat is present. 

McCown’s longspur 

Calcarius mccownii 

USFS-R2S Moderate. This species was 

documented along the proposed project route in Wyoming. 

High. This species has been documented within the proposed project corridor in Colorado. This species has been documented on all Breeding Bird Survey routes on the PNG. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Chestnutcollard longspur Calcarius ornatus USFS-R2S Low. No known occurrences in the proposed project vicinity in Wyoming; 

however, suitable breeding habitat is present. 

Moderate. This species was documented along the proposed project route in Colorado. This species has been documented on the PNG on four of the five Breeding Bird Survey routes. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Northern harrier Circus cyaneus USFS-R2S Low. No known occurrence in the 

vicinity of the proposed project route in Wyoming; however, suitable year round habitat is present. 

Low. Common year- round residents on the PNG. Not known to nest on the PNG. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable year round habitat is present. 

Grasshopper sparrow 

Ammodramus savannarum 

USFS-R2S Low. This species has been 

documented within the vicinity of proposed project route in Wyoming. 

Moderate. Fairly common summer resident on the PNG. This species has been documented on all Breeding Bird Survey routes on the PNG. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Black tern Chlidonias niger USFS-R2S; 

KS-SINC. 

Low. No known occurrences in the proposed project vicinity in Wyoming; however, suitable breeding habitat is present. 

Moderate. Known to breed in isolated patches in Colorado. Fairly common summer resident with limited nesting habitat on the PNG. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, potential breeding habitat is present. 

Plants Dwarf milkweed Asclepias 

uncialis 

USFS-R2S None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

Moderate. Suitable habitat for this species is present within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

G-49 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Prairie moonwort 

Botrychium campestre 

USFS-R2S None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

Moderate. Suitable habitat present on PNG. None. This species and its required 

habitat are not found within the proposed project vicinity in Kansas. 

Wyoming feverfew 

Parthenium alpinum 

Former USFS-R2S 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Wyoming. 

High. Potential habitat present. Known from occurrences in Weld County, Colorado. This species has been documented within the project area. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

State Status Mammals Northern pocket gopher 

Thomomys talpoides 

CO-SOC Moderate. This species has been 

documented along the proposed project route in Wyoming. 

Low. No known occurrence of this species has been documented within the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Franklin’s ground squirrel 

Spermophilus franklinii 

KS-SINC None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

Low. No known occurrence within the vicinity of the proposed project route; however, limited suitable habitat is present. 

Long-legged myotis 

Myotis volans WY-NSS2 Moderate. This species has been 

documented along the proposed project route. 

Low. No known occurrence within the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Pallid bat Antrozous 

pallidus 

WY-NSS2; KS-SINC 

Moderate. This species has been documented within the vicinity of the proposed project route. 

Low. No known occurrence within the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Eastern spotted skunk 

Spilogale putorius 

KS-T None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

Moderate. The species is known to occur along the proposed project route in Kansas. Designated critical habitat occurs in three counties crossed by the proposed route. 

G-50 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Birds Snowy plover Charadrius 

alexandrinus 

KS-T; COSOC Low. No known occurrences in the proposed project vicinity in Wyoming; 

however, suitable breeding habitat is present. 

Low. No known occurrences in the proposed project vicinity in Colorado; however, suitable breeding habitat is present. 

Low. No known occurrences in the proposed project vicinity in Kansas; however, suitable breeding habitat is present. 

Black Rail Laterallus 

jamaicensis 

KS-SINC None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

None. This species and its required habitat are not found within the vicinity of the proposed project route in Colorado. 

Low. No known occurrences within the vicinity of the proposed project route; however, suitable breeding habitat is present. 

Short-eared owl Asio flammeus KS-SINC Low. No known occurrences in the 

proposed project vicinity in Wyoming; however, suitable breeding habitat is present. 

Low. No known occurrences in the proposed project vicinity in Colorado; however, suitable breeding habitat is present. 

Moderate. No known occurrences within the vicinity of the proposed project route;; however, suitable wintering habitat is present. . It is a transient and an irregular or local winter resident throughout Kansas. Most records of occurrence are from October 16 to April 15, but a few may occur at any time in proper habitat. 

Bobolink Dolichonyx 

oryzivorus 

KS-SINC Low. No known occurrence within the 

vicinity of the proposed project route in Wyoming; however, suitable breeding habitat is present. 

Low. No known occurrence within the vicinity of the proposed project route in Colorado; however, suitable breeding habitat is present. 

Low. No known occurrence within the vicinity of the proposed project route; however, suitable breeding habitat is present. This species casually occurs in western Kansas, where it may possibly breed very locally. Nesting has been confirmed from Barton, Cloud, and Stafford counties. 

Reptiles Glossy snake Arizona elegans KS-SINC None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

Western hognose snake 

Heterodon nasicus 

KS-SINC Low. No known occurrence in the 

vicinity of the proposed project route in Wyoming; however, suitable habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

G-51 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Common garter snake 

Thamnophis sirtalis 

CO-SOC Low. No known occurrence in the 

vicinity of the proposed project route in Wyoming; however, suitable habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

Eastern hognose snake 

Heterodon platirhinos 

KS-SINC Low. No known occurrence in the 

vicinity of the proposed project route in Wyoming; however, suitable habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

Yellow mud turtle 

Kinosternon flavescens 

CO-SOC None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

Moderate. This species has been documented along the proposed project route in Colorado. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

Amphibians Northern cricket frog 

Aeris crepitans CO-SOC None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

Plains leopard frog 

Rana blairi CO-SOC None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

Low. No known occurrence in the vicinity of the proposed project route in Colorado; however, suitable habitat is present. 

Low. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is present. 

Fish Plains minnow Hybognathus 

placitus 

CO-E; KSSINC Low. No known occurrence in the vicinity of the proposed project route in 

Wyoming; however, suitable habitat is present. 

Moderate to high. Potential for occurrence in the South Platte and Republican rivers in Colorado. 

Moderate to High. Potential for occurrence in the Republican river in Kansas. 

Brassy minnow Hybognathus 

hankinsoni 

CO-T; KSSINC None. This species and its required habitat are not found within the vicinity 

of the proposed project route in Wyoming. 

Moderate to high. Potential for occurrence in the South Platte and Republican rivers in Colorado. 

Moderate to High. Potential for occurrence in the Republican river in Kansas. 

Orangethroat darter 

Etheostoma spectable 

CO-SOC None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

Moderate. Known occurrence in the North Fork Republican River and Chief Creek. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

G-52 
Table G-2 Special Status Species Potential for Occurrence by State for the Overland Pass Pipeline Project 

Common Name Scientific Name Status 

Potential for Occurrence 

Wyoming Colorado Kansas 

Stonecat Noturus flavus CO-SOC None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

Low. Known occurrence in the Republican River drainage. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Suckermouth minnow 

Phenacobius mirabilis 

CO-E None. This species and its required 

habitat are not found within the vicinity of the proposed project route in Wyoming. 

Moderate. Potential occurrence in the South Platte and Republican Rivers. 

None. This species and its required habitat are not found within the proposed project vicinity in Kansas. 

Invertebrates Cylindrical papershell 

Anodontoides ferussacianus 

KS-SINC None. This species and its required 

habitat are not found within the proposed project vicinity in Wyoming. 

None. This species and its required habitat are not found within the proposed project vicinity in Colorado. 

Moderate. No known occurrence in the vicinity of the proposed project route in Kansas; however, suitable habitat is crossed. 

FE= Federal Endangered FT= Federal Threatened FC= Federal Candidate CO-E= Colorado Endangered CO-T= Colorado Threatened CO-SOC= Colorado Species of Concern KS-E= Kansas Endangered KS-T= Kansas Threatened 

KS-SINC= Kansas Species in Need of Conservation WY-NSS1= Wyoming Critically Imperiled Species WY-NSS2= Wyoming Imperiled Species BLM-WY = Wyoming BLM sensitive. USFS-R2S = USFS Region 2 sensitive species USFS-R4S = USFS Region 4 sensitive species PNG- Pawnee National Grasslands 

G-53 
Appendix H 

BLM Cultural Resources Protection Procedures 
PROGRAM OBJECTIVES 

The BLM has developed a cultural resources program designed to inventory, evaluate, and manage 

cultural resources on BLM-administered public land and in areas of BLM responsibility. The BLM 

management of cultural resources (archaeological, historic, and socio-cultural properties) is in accordance 

with the provisions of the National Historic Preservation Act (NHPA) of 1966, as amended, and other 

applicable legislation. 

IDENTIFICATION OF CULTURAL RESOURCES 

The BLM requires cultural resource inventories for actions with federal responsibility that include surface 

disturbance as a part of the action. The purpose of inventories is to identify cultural resources prior to any 

ground disturbing activity. This way, sites can be protected through project redesign or other mitigation 

measures prior to any threat of disturbance. Numerous laws and regulations mandate this policy. All 

portions of the proposed Overland Pass Pipeline, access roads, temporary use areas, and storage yards 

have been inventoried to Class III standards. 

Class III intensive field surveys are conducted by professionals thorough pedestrian survey of an entire 

target area. The intent of a Class III inventory is to locate and record all historic properties and is 

consistent with standards in the Secretary of the Interior’s Standards and Guidelines for Archaeology and 

Historic Preservation (48 FR 44716). Class III inventories conform to the prevailing professional survey 

standards for the region involved, provided that the regional standards meet or exceed the Secretary’s 

Standards and Guidelines. Because Class III survey is designed to produce a total inventory of the 

cultural properties observable within the target area, once it has been completed no further survey work 

should be needed in the target area as long as the current standards are met. Areas with a high 

probability of containing buried cultural materials or known cultural materials may require additional 

work of professional monitoring and/or data recovery excavations. Areas that require additional work are 

analyzed on a case-by-case basis, depending on the proposed action and the types of cultural resources 

present in the project area. 

BLM JURISDICTION ON PRIVATELY OWNED AND/OR SPLIT ESTATE 

LANDS (INCLUDING THE CHECKERBOARD LAND PATTERN) 

Survey 

The BLM frequently authorizes permits and rights-of-way, or provides approvals for actions on Federal 

lands in which portions of the overall project may take place on non-Federal lands or the Federal action 

may have contingent or cumulative effects on non-Federal lands. Before the BLM can authorize (through 

permit, license, etc.) any project which may adversely affect significant cultural resources (i.e., historic 

properties), the BLM has the legal responsibility to take into account the effects of its actions on these 

resources. In order for the BLM to fully consider the effects of its actions, it also has the responsibility to 

gather the information necessary to know what cultural resources may be affected, evaluate the resources 

for eligibility for inclusion in the National Register of Historic Places, and mitigate adverse affects to 

historic properties where possible. 

If a project requires the use of federally owned surface lands as well as privately owned surface lands, 

there are two authorities that require federal agencies to apply the same NHPA Section 106 compliance 

standards to private lands as they do to federal lands. The regulations at 36 CFR, Part 800.4(b) require 

the Federal agency to "take the steps necessary to identify historic properties within the area of potential 

H-1 
effect." That this includes both Federal and nonfederal lands is implicit throughout the statute and the 

regulations, since the regulatory definition of "area of potential effect” is "the geographic area or areas 

within which an undertaking may directly or indirectly cause changes in the character or use of historic 

properties" [36 CFR, Part 800.16(d)]. It makes no distinction between Federal and nonfederal lands. 

More explicit, however, is Executive Order No. 11593, entitled "Protection and Enhancement of the 

Cultural Environment." Under the EO, Section 1(3) it states that all Federal agencies: "...in consultation 

with the Advisory Council on Historic Preservation, institute procedures to assure that Federal plans and 

programs contribute to the preservation and enhancement of non-federally owned sites, structures and 

objects of historical, architectural, or archaeological significance." The BLM's responsibility for 

inventory, evaluation, and protection of cultural properties on lands outside BLM administrative 

jurisdiction is limited according to the degree to which the Field Manager's decisions determine or control 

the location of surface-disturbing activities on those lands. 

BLM makes this policy known to project proponents, who in turn are responsible for providing all of the 

information the BLM requires for making informed decisions. If cultural resource data is lacking from 

private lands so that the BLM authorized officer cannot make an informed decision, the BLM cannot 

allow the undertaking to proceed. Thus, it is the responsibility of the project proponent to acquire the 

appropriate information. 

Within the checkerboard land pattern that encompasses much of the planning area, Wyoming BLM has 

set forth the policy that the entire project area, if it covers any federal lands, must be inventoried. The 

reasoning for this is that the distances between federal ownership and private ownership are so short, that 

the potential for the federal portion to not dictate the placement of the project on private is remote. 

Split estate lands are defined as those lands where surface ownership transferred to private landowners 

from the Federal government but the mineral rights were retained by the Federal government. These 

situations arose either through patent under the 1914 amendment to the Homestead Act or purchase under 

the Stock-raising Act of 1916. Each of these Acts also allowed for the Federal government to "reenter 

and occupy so much of the surface...as may be required for all purposes reasonably incident to the mining 

or removal of coal or other minerals." At the time of purchase, the buyer agreed to these terms. Since 

completing compliance of the NHPA Section 106 process is required of a Federal agency by statute and 

regulation prior to the Federal action, and then being able to complete that process is a purpose reasonably 

incident to the extraction of the minerals. 

Site Management 

As stated above, BLM has multiple authorities for requiring cultural resource inventories on private lands. 

This jurisdiction only holds forth with federal undertakings. Cultural resources that are located on private 

lands are recorded for the permanent record and appropriate mitigation measures are applied, in 

consultation with the private landowner. This jurisdiction comes from the requirement that the federal 

agency must take into account its effects on all historic properties. Once the federal undertaking has been 

fully processed, the federal responsibility for an historic property is completed. The historic property 

remains under the ownership of the landowner, thus BLM has no control over the historic property 

outside of the venue of a federal undertaking. 

H-2 
EVALUATION OF CULTURAL RESOURCE SITES 

Criterion for Eligibility 

The BLM evaluates the significance of cultural resources identified during inventory in consultation with 

the Wyoming SHPO to determine if the resources are eligible for inclusion in the National Register of 

Historic Places (NRHP). Cultural resource properties may be considered eligible for listing in the 

National Register if they meet one or more of the following criteria identified in 36 CFR 60.4: 

• Criterion A: An historic property is associated with an event or events that have made a 

significant contribution to the broad patterns of America’s History.

• Criterion B: An historic property is associated with the lives of persons significant to our past. 

• Criterion C: An historic property embodies the distinctive characteristics of a type, period, or 

method of construction, or represents the work of a master, or possesses high artistic value or 

represents a significant and distinguishable entity whose components may lack individual 

distinction. 

• Criterion D: An historic property has yielded or may be likely to yield information important in 

prehistory or history. 

To facilitate evaluation of cultural resource values in Wyoming, the BLM has devised guidelines for 

determining the eligibility of archaeological and historical sites and historic trails (BLM Manual 

8110.32). The guidelines supplement the National Register criteria for evaluation (36 CFR 60.4) and 

provide consistency across all BLM jurisdictions. Application of the guidelines ensures that significant 

cultural resources are recognized and managed accordingly. 

Aspects of Integrity 

Integrity is the ability of a property to convey its significance. To be listed in the National Register of 

Historic Places, a property must not only be shown to be significant under the National Register criteria, 

but it also must have integrity. The evaluation of integrity is sometimes a subjective judgment, but it 

must always be grounded in an understanding of a property’s physical features and how they relate to its 

significance. 

Historic properties either retain integrity (this is, convey their significance) or they do not. Within the 

concept of integrity, the National Register criteria recognize seven aspects or qualities that, in various 

combinations, define integrity. 

To retain historic integrity a property will always possess several, and usually most, of the aspects. The 

retention of specific aspects of integrity is paramount for a property to convey its significance. 

Determining which of these aspects are most important to a particular property requires knowing why, 

where, and when the property is significant. 

• Location: The place where the historic property was constructed or the place where the historic 

event occurred. 

• Design: The combination of elements that create the form, plan, space, structure, and style of a 

property. 

H-3 
• Setting: The physical environment of an historic property. 

• Materials: The physical elements that were combined or deposited during a particular period of 

time and in a particular pattern or configuration to form an historic property. 

• Workmanship: The physical evidence of the crafts of a particular culture or people during any 

given period in history or prehistory. 

• Feeling: The property’s expression of the aesthetic or historic sense of a particular period of 

time. 

• Association: The direct link between an important historic event or person and an historic 

property. 

Contributing and Non-Contributing to NRHP Eligibility 

Properties that encompass large areas can be deemed to have contributing and non-contributing portions. 

Contributing portions are seen to retain integrity of the values for which the property is considered 

eligible for the NRHP. Non-contributing portions are identified portions of the property which are not 

deemed to retain the integrity of values which would render the property eligible for the NRHP. The 

determination of contributing versus non-contributing portions of an eligible property can be made at any 

time after adequate evaluation has been conducted. 

Historic trails including the Overland and Cherokee, the Rawlins to Fort Washakie Freight Road, and the 

Rawlins to Baggs Freight Road, are considered eligible for the National Register under Criterion A. 

However, some portions of the trails no longer retain the aspects of integrity necessary for eligibility. As 

there have been no encompassing inventories of entire trails within the RMPPA, portions of trails are 

evaluated to determine if they contribute to the eligibility of the property on a case-by-case basis. Trail 

segments are evaluated pursuant to the National Register criteria of integrity (location, design, setting, 

materials, workmanship, feeling, and association). If a predominance of criteria are met, the segment will 

be considered contributing to the properties’ overall NRHP eligibility. 

Determinations of Effect 

Once the eligibility of an historic property has been determined, the BLM must then determine the effects 

a proposed undertaking may have on a cultural resource. Standard measures for reducing effects are to be 

considered part of the project design. Determination of effect must be made after standard treatment 

measures and best management practices have been integrated into the project design. The final project 

design must incorporate all agreed upon treatment measures and be included in the Conditions of 

Approval or components of the Surface Use Plan, Plan of Operations, or Plan of Development. 

No Historic Properties Affected If no cultural resource sites eligible for listing in the NRHP are present 

in the proposed project area, there are historic properties present but the undertaking will have no effect 

upon them, or a proposed project will not be visible from an historic property or there is no contrast 

between the project and the setting, the BLM will find that the undertaking has no potential to affect 

historic properties. 

No Historic Properties Adversely Affected If a proposed project will cause effects to an historic 

property, but the effects will not diminish the aspects of integrity nor the characteristics that make the 

property eligible for listing in the National Register of Historic Places, only non-contributing portions of 

H-4 
historic properties will be affected, or if setting is an important aspect of integrity for an historic property 

and the project will cause a weak contrast, the BLM will find that the undertaking has no potential to 

adversely affect historic properties. 

Historic Properties Adversely Affected An adverse effect is found when an undertaking may alter, 

directly, or indirectly, any of the characteristics of an historic property that qualify the property for 

inclusion in the national Register in a manner that would diminish the integrity of the property’s location, 

design, setting, materials, workmanship, feeling, or association. Consideration shall be given to all 

qualifying characteristics of a historic property, including those that may have been identified subsequent 

to the original evaluation of the property’s eligibility for the National Register. Adverse effects may 

include reasonably foreseeable effects cause by the undertaking that may occur later in time, be farther 

removed in distance, or be cumulative. 

Consultation 

SHPO Consultation 

According to the Programmatic Agreement between the Advisory Council on Historic Preservation 

(ACHP) and the BLM, the BLM is required to consult with State Historic Preservation Officers (SHPOs) 

on eligibility and effects to each cultural property. The Wyoming BLM and Wyoming SHPO have 

developed a Protocol for consultation that serves to streamline the process and reduce consultation time 

frames from the guidelines set forth in the 36 CFR 800 regulations. The BLM has coordinated with 

Colorado and Kansas SHPOs as to the nature of consultation for this project and will follow the 

guidelines set forth in the 36 CFR 800 regulations. Determination of effects to sites follows the criteria 

outlined in 36 CFR 800.5. 

Native American Consultation 

In addition to consultation with the SHPO offices, the BLM conducts Native American Consultation in 

compliance with Section 106 of the NHPA, the American Indian Religious Freedom Act of 1978, and 

Executive Order No. 13007. The BLM has created a process for conducting Native American 

consultation for federal undertakings, as described in BLM Manual 8120 and BLM Manual H-8120-1. 

The BLM has worked extensively with tribes who have traditional ties to the region to establish a 

protocol for consultation. Consultation with Native American tribes is ongoing during the planning 

process. Determinations of eligibility and effects the project may have on sites are determined by the 

BLM in consultation with tribal representatives. The likelihood of inadvertently affecting a TCP or 

sacred site is low because of the established protocols BLM has developed with tribal representatives. 

Interested Parties 

The BLM will solicit such input through the public participation opportunities afforded by BLM’s land 

use planning and environmental review processes established under the National Environmental Policy 

Act (NEPA) of 1969 and the Federal Land Policy and Management Act (FLPMA) of 1976, and in 

accordance with regulations at 43 CFR Part 1610.3. Interested parties shall be invited to participate in the 

Section 106 consultation process if they have a demonstrated interest in a BLM action. Such interested 

parties may include, but are not limited to, local governments, grantees, permittees, owners of affected 

lands or land surfaces, Indian tribes, and other interested parties determined jointly by BLM and SHPOs. 

In making determinations of effect, BLM may request comments of interested parties. When BLM makes 

a determination of adverse effect, they will request comments of interested parties. BLM will maintain 

lists of interested parties based on their identified interests. 

H-5 
BLM and SHPOs will consult to identify invited concurring parties based on their demonstrated interest 

and level of participation. Invited concurring parties will be provided the opportunity to sign a 

Memorandum of Agreement or Programmatic Agreement. Refusal by an invited concurring party to sign 

an agreement will not invalidate the agreement. 

MANAGEMENT OF CULTURAL RESOURCES 

Within the framework described above, the BLM has developed protective measures to minimize adverse 

effects (as defined in 36 CFR 800.5[1]) on significant cultural resource values. Protective measures are 

used in response to the proposed actions of BLM programs involving surface disturbance. These 

measures include cultural resource inventories, evaluation of cultural resources located during inventory, 

setting assessments where applicable, Best Management Practices and mitigation of potential adverse 

impacts on significant cultural resources. 

A setting assessment is used to determine what physical features of a proposed undertaking will be visible 

from a historic property for which setting is an important aspect of integrity. Visibility of undertakings 

will vary. The scale of visual analysis should be commensurate with the scale of the undertaking. In the 

majority of cases, undertakings will not be seen beyond three miles; pipelines, fiber-optic and other 

ground level disturbance will not likely be seen beyond a mile. In rare cases, undertakings may be seen 

beyond five miles if they are unusually large or are skylined on the horizon, such as wind turbines and 

communication towers. 

A setting assessment can also be used to determine whether a proposed undertaking will introduce audible 

elements to the historic property where setting is an important aspect of integrity. These proposed 

undertakings may include compressor stations, pumping stations, or wind turbines. An assessment of the 

existing audible elements will be documented and then the BLM archaeologist will work with the project 

proponent to ensure new audible elements do not result in an adverse effect. Best management practices 

and mitigation measures will be utilized to achieve this goal. 

Best Management Practices 

In situations where a proposed undertaking has the potential to affect the physical integrity of an historic 

property, there are numerous measures that can be applied to reduce or eliminate the effects. BLM 

archaeologists work with the contracting archaeologist and the project proponent to determine which 

practice would best suit the needs of all parties. Application of BMPs is dependent upon the nature of the 

undertaking, and the nature of the historic property. 

Avoidance Avoidance, through modification of the proposed undertaking, is the primary and preferred 

measure used to protect cultural resources. This can be accomplished at the project planning stage. 

Monitoring In situations where avoidance of adverse affects is not feasible, or there is a determination of 

no adverse effects, but the potential remains for there to be adverse effects through inadvertent discovery, 

a BLM permitted archaeologist will monitor construction activities. The presence of a monitor is to 

ensure that buried cultural materials are immediately identified and that construction activities in that area 

are halted to avoid further impacts to the site. Prior to BLM authorization of the project, the project 

proponent submits a discovery plan to the BLM for review which outlines the way in which cultural 

resources will be treated and the responsibilities of the project proponent. This plan is reviewed by BLM 

archaeologists and submitted to SHPO for concurrence. In the case where monitoring results in a 

discovery situation, the discovery plan is enacted. Depending on the nature of the discovery the project 

may be allowed to proceed, redesigned, or data recovery may be required. 

H-6 
Standard Measures to Reduce Visual Contrast When a proposed project is found to be within the 

contributing setting of an historic property, an assessment of potential impacts is conducted through 

viewshed analyses, on-site inspection, and photo inspection. For historic trails such as the Cherokee 

Trail, Overland Trail, Rawlins to Fort Washakie Road and Rawlins to Baggs Road, protection measures 

would be carried out similarly to other historic properties if any project were found to be located within 1⁄4 

mile of a contributing portion of the historic trail. When a proposed project is outside of the 1⁄4 mile 

buffer of the trail, but found to be within the viewshed that contributes to NRHP eligibility, analyses of 

potential impacts to the integrity of the setting would be carried out in the same way as other properties 

where setting is an aspect of integrity. Best management practices used to ensure that the contributing 

viewshed of historic properties are not adversely affected include: 

• Develop coordinated road and pipeline systems. 

• Use low profile facilities. 

• Proper sighting and location to maximize the use of topography and vegetation to screen 

development. Design projects to blend with topographic forms and existing vegetation patterns. 

• Use environmental coloration or advance camouflage techniques to break up visual intrusion of 

facilities that cannot be completely hidden. 

• Use broken linear patterns for road developments to screen roads as much as possible. This can 

include feathering or blending of the edges of linear rights-of-way to break up the linearity. 

• Design linear facilities to run parallel to key observation points rather than perpendicular. 

Mitigation 

Mitigation measures are determined by the types of proposed actions, the nature of the potential effect 

and the qualities of the historic property that render it eligible for NRHP listing. Mitigation measures are 

applied when best management practices will not reduce or minimize adverse effects. Mitigation may 

include data recovery, HABS/HAER documentation, or other agreed upon measures. Consultation with 

the Wyoming SHPO and the ACHP is required when proposed actions are expected to adversely affect 

properties eligible for the National Register and mitigation is determined to be the best course of action. 

Data Recovery There are two times during a project that data recovery may be implemented. The first 

is when it is determined prior to project construction that there will be an adverse effect to an NRHP 

eligible property. The project proponent, the BLM, and the SHPO work together to develop a data 

recovery plan which will mitigate the adverse effects. The second is after a discovery situation when it is 

determined that the project has already adversely impacted an historic property. Again, the project 

proponent, BLM authorized officer, and SHPO work to develop a plan that mitigates all effects of the 

construction. Data recovery in itself is a destructive process, thus it must be carried out in a way to 

successfully retrieve all pertinent information from the site. 

HABS/HAER (Historic American Buildings Survey/Historic American Engineering Record) 

HABS/HAER documentation as a mitigation measure may be implemented if no other mitigation 

measure would adequately minimize the adverse effect. This documentation includes large format 

photography, drawings, and research of the property to document all aspects of the property prior to 

adverse effects. 

H-7 
Agreement Documents In situations where data recovery or HABS/HAER documentation is not 

appropriate to mitigate adverse effects or multiple historic properties will be affected by a single 

undertaking, the BLM will work with the SHPO and the project proponent to develop an agreement 

document. Depending on the nature of the undertaking, this may result in a Memorandum of Agreement 

(MOA) or a Programmatic Agreement (PA). The agreement document will outline the manner in which 

adverse effects will be mitigated, and the roles and responsibilities of each signatory. The agreement 

document stays in effect until all measures have been completed to the satisfaction of all parties. 

CULTURAL RESOURCE LAWS AND REGULATIONS 

American Antiquities Act of 1906—provides for permits to authorize scholarly use of properties, for 

misdemeanor-level penalties to control unauthorized use, and for presidential designation of outstanding 

properties as national monuments for long-term preservation. 

National Historic Preservation Act of 1966— 

• Section 106 directs all federal agencies to take into account effects of their undertakings (actions 

and authorizations) on properties included in or eligible for the NRHP. 

• Section 110 sets inventory, nomination, protection, and preservation responsibilities for federally 

owned cultural properties. Section 110(c) requires each federal agency to designate a 

Preservation Officer to coordinate activities under the act. 

American Indian Religious Freedom Act of 1978—establishes the policy of the United States to protect 

and preserve for the American Indian, Eskimo, Aleut, and Native Hawaiian the inherent right of freedom 

to believe, express, and exercise their traditional religions. Federal agencies are directed to evaluate their 

policies and procedures to determine if changes are needed to ensure that such rights and freedoms are not 

disrupted by agency practices. 

Archaeological Resources Protection Act of 1979—provides felony-level penalties for the unauthorized 

excavation, removal, damage, alteration, defacement, or the attempted unauthorized removal, damage, 

alteration, or defacement of any archaeological resource, more than 100 years of age, found on public 

lands or Indian lands. The act also prohibits the sale, purchase, exchange, transportation, receipt, or 

offering of any archaeological resource obtained from public lands or Indian lands. 

Native American Graves Protection and Repatriation Act of 1990—requires Native American 

consultation for the excavation and/or removal of “cultural items” including human remains, funerary 

objects, sacred objects, and objects of cultural patrimony. Consultation is also required if “cultural items” 

are discovered during land use activities. 

Executive Order No. 13007: Indian Sacred Sites—establishes access to and ceremonial use of Indian 

sacred sites by Indian religious practitioners on federal lands. The federal agencies shall avoid adversely 

affecting the physical integrity of such sacred sites and maintain confidentiality of said sites. 

H-8 
Appendix I 

Cultural Resources Site Summary Tables By State 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48LN3639 Historic Roberson Ditch Pipeline Not Eligible No Further Work No Effect Private 48LN947/ 48SW6034 

Historic Hams Fork Cutoff 

Trail 

Pipeline Eligible No Further Work No Adverse Effect Private, BLM 

48LN2327 Historic Oregon Short Line 

Railroad [OSLR] 

Pipeline Eligible No Further Work No Adverse Effect Private 

48LN3634 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48LN3640 Historic South Side Ditch Pipeline Not Eligible No Further Work No Effect Private 48LN3635 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48LN2204 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48LN3636 Prehistoric Far And Lithic 

Scatter 

Pipeline Not Eligible No Further Work No Effect Private 

48LN3637 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48LN4406 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48LN4407 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN4408 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48LN3631 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN4409 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN3627 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48LN3629 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN3630 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN659 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48LN530 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48LN650 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48LN617 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48LN529 Prehistoric Lithic Scatter Pipeline Non-Contributing 

Portion Of Eligible Site 

Monitor No Adverse Effect BLM 

48LN3623 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN1673 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN3624 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN4410 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 

I-1 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48LN1778 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN3641 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN616 Prehistoric Open Camp Pipeline Eligible Avoid Or Mitigate No Adverse Effect BLM 48LN3700 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48LN946 Historic Blacks Fork Cutoff 

Trail 

Pipeline Eligible No Further Work No Adverse Effect BLM 

48LN3701 Prehistoric Open Camp Pipeline Eligible Fence And Monitor No Effect BLM 48LN626 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN3642 Prehistoric Open Camp Pipeline Eligible Avoid Or Mitigate No Adverse Effect BLM 48LN2308 Historic Historic Debris Pipeline Not Eligible No Further Work No Effect Private 48LN1190 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48LN1062 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48LN65 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48LN2307 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48LN706 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect State 48UT122/ 48LN269 

MultiComponent Historic Debris/Prehistoric 

Habitation 

Pipeline Non-Contributing 

Portion Of Eligible Site 

Monitor No Adverse Effect Private, State, and 

BLM 

48LN710/ 48SW3371 

MultiComponent Open Camp/Historic Debris Pipeline Eligible Neck/Fence/Monitor No Adverse Effect State 

48SW2521 Prehistoric Open Camp Pipeline Eligible Neck/Fence/Monitor No Adverse Effect Private And State 48SW1560 Prehistoric Open Camp Pipeline Eligible Neck/Fence/Monitor Adverse Effect Private and BLM 48SW7227 Prehistoric Lithic Landscape Pipeline Not Eligible No Further Work No Effect BLM 48SW6357 Historic Union Pacific 

Railroad Segment 

Pipeline Eligible No Further Work No Adverse Effect BLM 

48SW7964 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW1612 Prehistoric Open Camp Pipeline Eligible Fence And Monitor No Adverse Effect Private 48SW1610 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW7221 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private, BLM 48SW827 Historic Oregon Trail Pipeline Eligible No Further Work No Adverse Effect Private, BLM 48SW1705 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 

I-2 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48SW1023 Prehistoric Open Camp Pipeline Eligible Neck/Fence/Monitor No Adverse Effect Private, BLM 48SW1052 Prehistoric Camp And Lithic 

Scatter 

Pipeline Not Eligible No Further Work No Effect Private 

48SW16588 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW1053 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW9831 MultiComponent Lithic Scatter And Historic Debris Pipeline Not Eligible No Further Work No Effect Private 48SW16589 Prehistoric Open Camp And 

Lithic Scatter 

Pipeline Not Eligible No Further Work No Effect Private 

48SW7219 Prehistoric Lithic Scatter And 

Fcr 

Pipeline Not Eligible No Further Work No Effect Private 

48SW7369 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW989 Prehistoric Lithic And Far 

Scatter 

Pipeline Eligible Monitor No Adverse Effect Private, BLM 

48SW10519 MultiComponent Open Camp And Historic Debris Pipeline Not Eligible No Further Work No Effect Private 48SW6637 Prehistoric Open Camp Pipeline Eligible Fence And Monitor No Adverse Effect Private 48SW10520 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW3389 Prehistoric Open Camp Pipeline Eligible Fence And Monitor No Adverse Effect BLM 48SW10521 Prehistoric Open Camp Pipeline Eligible No Further Work No Adverse Effect BLM 48SW3388 Prehistoric Lithic And Far 

Scatter 

Pipeline Not Eligible No Further Work No Effect BLM 

48SW10522 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW10523 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW16590 Prehistoric Lithic Scater Pipeline Not Eligible No Further Work No Effect Private 48SW6634 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW16591 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW6631 Prehistoric Lithic Scatter Pipeline Eligible Fence And Monitor No Adverse Effect BLM 48SW10524 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW9196 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48SW12018 MultiComponent Lithic Scatter And Historic Debris Pipeline Not Eligible No Further Work No Effect Private 

I-3 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48SW8211 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48SW10526 Prehistoric Open Camp Pipeline Eligible Neck/Monitor/Fence No Adverse Effect BLM 48SW1649 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW8212 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW16592 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW8976 Historic Bryan To Browns 

Park Wagon Road 

Pipeline Eligible No Further Work No Adverse Effect Private 

48SW1653 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect State 48SW1656 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48LN757 MultiComponent Lithic Scatter/Historic Debris Access Road Not Eligible No Further Work No Effect Private 48LN760 MultiComponent Lithic Scatter/Historic Camp Access Road Eligible No Further Work No Adverse Effect BLM 48LN3541 Prehistoric Lithic Scatter Access Road Not Eligible No Further Work No Effect BLM 48LN3542 MultiComponent Lithic Scatter/Historic Isolated Resource Access Road Not Eligible No Further Work No Effect BLM 48LN4411 Prehistoric Lithic Scatter Access Road Not Eligible No Further Work No Effect Private IR-KLB-001 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect IR-EES-01 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect BLM IR-KLB-002 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect BLM IR-JB-101 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect BLM IR-3.4 Historic Isolated Resource Access Road Not Eligible No Further Work No Effect BLM IR-4.6 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect Private IR-KKB-25 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect Private IR-3.5 Historic Isolated Resource Access Road Not Eligible No Further Work No Effect BLM IR-1.7 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-MC1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-9.0 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-14.5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-17.6 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-17.9 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect 

I-4 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

IR-19.0 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-20.4 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-KLB-003 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-CG-2 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-24.0 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-24.8 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-24.9 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-JL-3 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-CJK-1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-MEC-1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-32.7 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-34.8 MultiComponent Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-34.9 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-35.3 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-35.5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-36.9 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-40.5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-40.6 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-41.5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect State 48SW15864 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW1226_72 Historic Overland Trail 

Segment 

Pipeline Eligible Avoid, Mitigate 

Visual Impact 

No Effect; Adverse Effect To Setting 

BLM/ Private 

48SW15863 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW15861 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW1226_73 48SW1226_121 48SW1226_74 

Historic Overland Trail 

Segment 

Pipeline Eligible Avoid, Mitigate 

Visual Impact 

No Effect; Adverse Effect To Setting 

BLM/ Private 

48SW6879 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48SW16620 Historic Homestead Pipeline Not Eligible No Further Work No Effect Private 48SW4164 Historic Vernal-Green River Pipeline Eligible No Further Work No Adverse Effect Private 

I-5 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

Freight Road 

48SW3734 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 49SW16621 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW16622 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW16623 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW16624 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW16625 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW3865 Historic Browns Park/Rock 

Springs Road 

Pipeline Eligible No Further Work No Adverse Effect BLM 

48SW10752 Historic Rock Springs To 

Hiawatha Freight Road 

Pipeline Eligible No Further Work No Adverse Effect BLM 

49SW15703 Historic Telephone Line Pipeline Eligible No Further Work No Adverse Effect BLM 48SW3319 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW16626 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW13914 Prehistoric Lithic Scatter Pipeline Eligible Avoid Or Mitigate No Effect BLM 48SW12421 Historic Wagon Road Pipeline Not Eligible No Further Work No Effect BLM 48SW1226_61 Historic Overland Trail 

Segment 

Pipeline Contributing Segment 

Of Eligible Resource 

Avoid, Restrict The Construction Corridor To The Permanent Row, Fence, And Monitor 

No Effect; Adverse Effect To Setting 

Private 

48SW16627 Prehistoric Lithic Scatter Pipeline Eligible Fence/Monitor No Adverse Effect BLM 48SW2398 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW16628 Prehistoric Open Camp Pipeline Eligible No Further Work No Effect Private 48SW2397 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48SW1226_132 Historic Overland Trail 

Segment 

Pipeline Eligible Avoid/Fence/ 

Monitor 

No Effect; Adverse Effect To Setting 

BLM 

48SW11395 Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW1226_62 Historic Overland Trail 

Segment 

Pipeline Eligible No Further Work No Adverse Effect BLM 

I-6 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48SW16629 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW16630 Prehistoric Lithic Scatter Pipeline Eligible Avoid/Neck/Fence/ 

Monitor 

No Effect Private 

48SW15897 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW15891 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW16631 Prehistoric Open Camp Access Road Not Eligible No Further Work No Effect Private 48SW11576 Prehistoric Open Camp Access Road Not Eligible No Further Work No Effect BLM 48SW6360 Historic Railroad Camp Pipe Yard Not Eligible No Further Work No Effect Private IR-LF-2 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect Private IR-LF-3 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect Private IR-KKB-31 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-46A-1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-48A-1 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-53.9 MultiComponent Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-54.1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-56.9 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-59.7 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect State IR-62.8 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-KKB-32 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-BH-13 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-MA-12 MultiComponent Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-BH-1A Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-72.7 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-MA-11 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-73.4 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-78.3 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-79.6 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-82.5 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private 

I-7 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

IR-82.6 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-84.5 MultiComponent Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-85.1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-85.3 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-85.5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-89.2 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-89.8 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-93.2 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-93.3 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-97.6 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-102.9 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-105.8 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-106.8 MultiComponent Isolated Resource Pipeline Not Eligible No Further Work No Effect Private 48SW13982 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW15896 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW15890 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW2690 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW15893 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW15894 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW15895 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48SW3339 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW4155 Prehistoric Lithic Scatter Pipeline Eligible, NonContributing Portion Fence/Monitor No Adverse Effect Private 48SW9804 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW5156 Prehistoric Open Camp Pipeline Eligible, NonContributing Portion Fence/Monitor No Adverse Effect Private/BLM 48SW5157 Prehistoric Open Camp Pipeline Eligible, Contributing 

Portion 

Avoid No Effect State 

48SW12160 Multi- Lithic Scatter/Historic Pipeline Not Eligible No Further Work No Effect Private 

I-8 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

Component Debris Scatter 

48SW6357 Historic Union Pacific 

Railroad Segment 

Pipeline Eligible, Contributing 

Portion 

Bore/Fence/Monitor No Adverse Effect Private 

48SW12319 Historic Historic Culvert 

Related to UPRR Mainline 

Pipeline Eligible Fence/Monitor No Effect Private 

48SW12385 Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW5602 Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW13108 Prehistoric Open Camp Pipeline Eligible, Contributing 

Portion 

Avoid No Effect BLM 

48SW13106 Prehistoric Open Camp Pipeline Eligible Fence/Monitor No Adverse Effect BLM 48SW13105 Prehistoric Open Camp Pipeline Eligible Avoid No Effect BLM 48SW16633 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW16634 MultiComponent Lithic Scatter/Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW10277/ CR5739 

Historic Baggs-Wamsutter 

Road 

Pipeline Not Eligible No Further Work No Effect BLM 

48SW10057 MultiComponent Open Camp/ Historic Debris Scatter Pipeline Eligible, Non- Contributing Portion Fence/Monitor No Adverse Effect Private 48CR2036 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR2039 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR2040 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48CR1527 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48CR5512 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR8296 Historic Historic Debris 

Scatter 

Pipeline Not Eligible No Further Work No Effect Private 

48SW16635 Prehistoric Open Camp Pipeline Eligible Avoid/Fence/ 

Monitor 

No Effect BLM 

48SW911 Prehistoric Lithic Scatter Pipeline Eligible, NonContributing Portion Fence/Monitor No Adverse Effect BLM 48SW1029 Prehistoric Open Camp Pipeline Eligible Avoid No Effect BLM 48SW6790 Prehistoric Open Camp Pipeline Eligible No Further Work No Adverse Effect Private 

I-9 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48SW6357 Historic Union Pacific 

Railroad Segment 

Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect BLM 

48SW11371 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48SW1027 MultiComponent Open Camp/Historic Debris Scatter Pipeline Eligible, Non- Contributing Portion Fence/Monitor No Adverse Effect Private 48SW1028 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48SW891 MultiComponent Open Camp/Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR7310 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect State 48CR7309 Prehistoric Open Camp Pipeline Eligible Fence/Monitor No Effect State 48CR8727 MultiComponent Lithic Scatter/Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR7308 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48CR7311 Historic Union Pacific 

Railroad Segment 

Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48CR4328 Historic Union Pacific 

Railroad Segment 

Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48CR7307 MultiComponent Open Camp/Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR6986 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48CR6488 MultiComponent Open Camp/Historic Debris Scatter Pipeline Eligible, Contributing Portion Neck/Fence/ Mitigate/Monitor Adverse Effect BLM 48CR6485 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR40 MultiComponent Open Camp/Historic Debris Scatter Pipeline Eligible, Non- Contributing Portion Fence/Monitor No Adverse Effect BLM 48CR3648 Historic Rawlins To Baggs 

Stage Road 

Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48CR41 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48CR6484 Prehistoric Hearth Feature Pipeline Not Eligible No Further Work No Effect Private 48CR2181 Historic City Of Rawlins 

Wood Water Pipe 

Pipeline Eligible Monitor Unknown Effect Private 

48CR644 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 

I-10 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48CR8241 Historic Historic Debris 

Scatter 

Pipeline Not Eligible No Further Work No Effect BLM 

48CR6566 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48CR1234 Prehistoric Open Camp Pipeline Eligible Avoid/Neck/Fence/ 

Monitor 

No Effect BLM 

48CR4008 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect State 48CR8730 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48CR984 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48CR983 Prehistoric Open Camp Pipeline Eligible Fence/Monitor No Adverse Effect State 48CR5534 Historic Historic Fort Steele 

To Laramie Wagon Road 

Pipeline Not Eligible No Further Work No Effect Private 

48CR1191 Historic Lincoln Highway Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private/BLM 48CR629 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48CR630 Prehistoric Stone Circle, Tcp Pipeline Eligible Avoid No Effect BLM 48CR8732 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48CR8243 Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect Private 48CR8244 Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR631 MultiComponent Open Camp/Historic Debris Scatter Pipeline Eligible, Non- Contributing Portion Fence/Monitor No Adverse Effect BLM/ Private 48CR6914 Historic Saratoga And 

Encampment Railroad 

Pipeline Not Eligible No Further Work No Effect Private 

48CR8245 Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect Private 48CR1191 Historic Lincoln Highway Pipeline Eligible, Contributing 

Portion 

Neck/Fence/Mitigat e 

Adverse Effect Private 

48CR8733 Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect Private 48CR632 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48CR1233 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect State 48CR1191 Historic Lincoln Highway Pipeline Eligible, Contributing 

Portion 

Fence/Monitor No Effect State 

I-11 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48CR1191 Historic Lincoln Highway Pipeline Eligible, NonContributing Portion Monitor No Effect State 48CR1191 Historic Lincoln Highway Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 48CR1191 Historic Lincoln Highway Pipeline Eligible, NonContributing Portion No Further Work No Effect Private 48CR1191 Historic Lincoln Highway Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect BLM 48CR1191 Historic Lincoln Highway Pipeline Eligible, Contributing 

Portion 

Bore/Fence/Monitor No Adverse Effect BLM 

48CR1232 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48CR7189 Historic Road From Elk 

Mountain to UPRR 

Pipeline Not Eligible No Further Work No Effect BLM/ Private 

48CR3917 Prehistoric Stone Circle Pipeline Eligible Fence/Monitor No Effect Private 48CR648 Prehistoric Open Camp Pipeline Eligible, NonContributing Portion Fence/Monitor No Adverse Effect BLM/ Private 48CR1231 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM 48CR8247 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48CR3918 Prehistoric Lithic Scatter Pipeline Eligible, NonContributing Portion Fence/Monitor No Adverse Effect Private 48CR8734 Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR8735 MultiComponent Lithic Scatter/Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR3920 Prehistoric Open Camp Pipeline Eligible No Further Work No Effect Private/BLM 48CR4493 Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect Private 48CR932 Historic Overland Trail 

Segment 

Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48CR8736 Historic Historic 

Hearth/Debris Scatter 

Pipeline Not Eligible No Further Work No Effect Private 

48CR652 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect Private 48CR3927 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48CR8737 Multi- Lithic Scatter/Historic Pipeline Not Eligible No Further Work No Effect Private 

I-12 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

Component Debris Scatter And 

Structure 

48CR1229 Prehistoric Open Camp Pipeline Eligible Avoid/Fence/ 

Monitor 

No Adverse Effect Private 

48CR932 Historic Overland Trail 

Segment 

Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48CR5834 Prehistoric Foot Creek Rim Tcp Pipeline Eligible Monitor No Adverse Effect BLM 48CR5579 Prehistoric Tcp-Foote Creek 

Rim Arch District 

Pipeline Eligible Monitor No Adverse Effect BLM 

48CR6885 Historic Canon Ditch Pipeline Not Eligible No Further Work No Effect Private 48CR6885 Historic Canon Ditch Pipeline Not Eligible No Further Work No Effect Private 48CR6885 Historic Canon Ditch Pipeline Not Eligible No Further Work No Effect Private 48CR932 Historic Overland Trail 

Segment 

Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48AB18 Prehistoric Open Camp Pipeline Eligible Mitigate/Monitor Adverse Effect Private 48AB321 Prehistoric Lithic Landscape Pipeline Not Eligible No Further Work No Effect BLM 48AB1180 Historic Homestead Pipeline Not Eligible No Further Work No Effect Private 48AB157 Historic Overland Trail 

Segment 

Pipeline Eligible, Contributing 

Portion 

Neck/Fence/Monitor No Effect State/ Private 

48AB1444 Historic Cairn Pipeline Not Eligible No Further Work No Effect Private 48AB17 Historic Stone Arrangement Pipeline Not Eligible No Further Work No Effect Private 48AB19 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48AB1424 Historic Ranch Pipeline Not Eligible No Further Work No Effect Private 48AB354 Historic Lodgepole Creek 

Trail 

Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48AB619 Historic Laramie, Hahn's 

Peak, Pacific Railroad 

Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48AB835 Historic Pioneer Canal Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 48AB744 MultiComponent Historic Cellar/Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 

I-13 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48AB1225 Historic Laramie Valley 

Railroad Grade 

Pipeline Eligible Bore/Fence/Monitor No Adverse Effect Private 

48AB357 Historic Union Pacific 

Railroad Segment 

Pipeline Eligible, NonContributing Portion No Further Work No Effect Private 

48AB152 Historic Lincoln Highway Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 48AB1423 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48AB404 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48AB1760 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48AB165 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48AB152 Historic Lincoln Highway Pipeline Eligible, NonContributing Portion No Further Work No Adverse Effect Private 48AB357 Historic Union Pacific 

Railroad Segment 

Pipeline Eligible, NonContributing Portion No Further Work No Effect BLM 

48AB1761 Historic Dug Out Feature And 

Debris Scatter 

Pipeline Not Eligible No Further Work No Effect Private 

48AB167 Historic Buford Cemetery Pipeline Not Eligible Avoid/Fence/ 

Monitor 

No Effect Private 

48LA2827 Historic Prospect Pit Pipeline Not Eligible No Further Work No Effect State 48LA2828 Historic Prospect Pit Pipeline Not Eligible No Further Work No Effect Private 48LA207 Prehistoric Hunting Blinds Pipeline Eligible Avoid/Fence/ 

Monitor 

No Effect Private 

48LA3 Historic Debris Scatter Pipeline Not Eligible No Further Work No Effect Private 48LA2976 Historic Cairn And Debris 

Scatter 

Pipeline Not Eligible No Further Work No Effect Private 

48LA331 Historic Stone Wall Pipeline Not Eligible No Further Work No Effect Private 48CR1399 Historic Union Pacific 

Railroad Segment 

Pipeline Eligible, NonContributing Portion No Further Work No Effect BLM 

48CR633 Prehistoric Open Camp Access Road Not Eligible No Further Work No Effect BLM 48CR4524 Prehistoric Open Camp Access Road Eligible, NonContributing Portion No Further Work No Adverse Effect Private/ BLM 48CR8726 Historic Foundation And 

Debris Scatter 

Access Road Not Eligible No Further Work No Effect BLM 

I-14 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48SW10856 Prehistoric Open Camp Access Road Eligible, NonContributing Portion Fence No Effect BLM 48CR8728 Prehistoric Open Camp Access Road Not Eligible No Further Work No Effect Private 48CR7327 MultiComponent Open Camp/Historic Debris Scatter Access Road Eligible, Non- Contributing Portion Avoid No Effect BLM 48CR1191 Historic Lincoln Highway Access Road Eligible, Contributing 

Portion 

Fence No Adverse Effect Private 

48CR4328 Historic Union Pacific 

Railroad Segment 

Access Road Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48CR7311 Historic Union Pacific 

Railroad Segment 

Access Road Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48CR1191 Historic Lincoln Highway Access Road Eligible, NonContributing Portion No Further Work No Adverse Effect BLM 48CR4328 Historic Union Pacific 

Railroad Segment 

Access Road Eligible, NonContributing Portion No Further Work No Adverse Effect BLM 

48SW6357 Historic Union Pacific 

Railroad Segment 

Access Road Eligible, NonContributing Portion No Further Work No Adverse Effect Private 

48CR1191/48S W1834 

Historic Lincoln Highway Access Road Eligible, NonContributing Portion No Further Work No Adverse Effect Private/ BLM 

48CR4328/48S W6357 

Historic Union Pacific 

Railroad Segment 

Access Road Eligible, NonContributing Portion No Further Work No Adverse Effect BLM 

IR-RDRD-1 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect Private IR-MD-100 MultiComponent Isolated Resource Access Road Not Eligible No Further Work No Effect Private IR-NB-3 Historic Isolated Resource Access Road Not Eligible No Further Work No Effect Private IR-NB-2 Historic Isolated Resource Access Road Not Eligible No Further Work No Effect Private IR-NB-1 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect Private IR-MD-101 Historic Isolated Resource Access Road Not Eligible No Further Work No Effect Private IR-NB-4 MultiComponent Isolated Resource Access Road Not Eligible No Further Work No Effect BLM IR-114.6 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-MC-10 Prehistoric Isolated Resource Access Road Not Eligible No Further Work No Effect BLM IR-129.4 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private 

I-15 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

IR-S-130.0A1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-S-130.0A2 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-S-130.0A3 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-MC-132 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-135.1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-136.0 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-138.1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-138.5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-139.9 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-140.1 MultiComponent Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-143.5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-147.2-NB Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-148.8 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-KKB-4 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-BH-11 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-152.3 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect State IR-ARF-4 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-ARF-5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-ARF-6 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-157.9 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-MRM-100 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-MRM-101 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-DS-5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-160.2 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-160.3 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-ARF-1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-ARF-2 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-MD-1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-161.1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private 

I-16 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

IR-SDR-21 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-KD-3 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-KKB-2 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-165.4 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-BH-7 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-BH-8 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-BH-9 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-170.0 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-KKB-1A Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-BH-6 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-BH-5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-BH-4 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-BH-3 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-BH-2 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-JB-1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-SDR-2 MultiComponent Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-BH-1 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-KD-1 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-LF-1 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-SDR-100 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-GFC-1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-JB-4 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-JB-5 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect BLM IR-JL-1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-SLP-1 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect State IR-MA-01 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-MJR-1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-MA-2 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-JB-1A Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private 

I-17 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

IR-286.0 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-287.0 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-288.0 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-288.8 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-294.4-A Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect State IR-294.4-B Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect State IR-SDR-1 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-296.9 Prehistoric Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-NC-2 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect Private IR-303.6 Historic Isolated Resource Pipeline Not Eligible No Further Work No Effect State 48SW8210 Prehistoric Open Camp Pipeline Not Eligible No Further Work No Effect BLM/ Private 48LN2374 Prehistoric Lithic Scatter Access Road Not Eligible No Further Work No Effect BLM 48LN2375 Prehistoric Lithic Scatter Access Road Not Eligible No Further Work No Effect BLM 48LN3539 Prehistoric Lithic Scatter Access Road Not Eligible No Further Work No Effect BLM 48SW16623 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect BLM 48SW16666 Prehistoric Lithic Scatter Pipeline Not Eligible No Further Work No Effect Private 48SW468 Prehistoric Open Camp Access Road Eligible Avoid No Adverse Effect BLM 48SW11614 Prehistoric Open Camp Access Road Eligible Fence No Adverse Effect BLM 48SW14000 Prehistoric Open Camp Access Road Eligible Avoid No Adverse Effect BLM 48SW14005 Prehistoric Open Camp Access Road Eligible Avoid No Adverse Effect BLM 48SW14006 Prehistoric Open Camp Access Road Eligible Avoid No Adverse Effect BLM 48SW12421 Historic Road To Black 

Buttes 

Access Road Not Eligible No Further Work No Effect BLM/ Private 

48CR8771 Historic Debris Scatter Access Road Not Eligible No Further Work No Effect BLM 48SW2386 Prehistoric Lithic Scatter Access Road Not Eligible No Further Work No Effect Private 48SW6357 Historic Union Pacific 

Railroad Segment 

Access Road Eligible/NonContributing Portion No Further Work No Adverse Effect Private 

48SW1834 Historic Lincoln Highway Access Road Eligible/NonContributing Portion No Further Work Destroyed Private 48CR7327 MultiComponent Open Camp/Debris Scatter Access Road Eligible/Non- Contributing Portion No Further Work No Adverse Effect BLM 

I-18 
Table I-1 Cultural Resources Located During the Class III Inventories of the Wyoming Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

48SW6167 Historic Debris Scatter Access Road Not Eligible No Further Work No Effect Private 48SW6174 Prehistoric Open Camp Access Road Eligible/NonContributing Portion Fencing And Monitoring No Adverse Effect Private 48CR621 Prehistoric Open Camp Access Road Eligible/NonContributing Portion Fencing And Monitoring No Adverse Effect BLM 48CR559 Prehistoric Open Camp Access Road Not Eligible No Further Work No Effect BLM 48CR7185 Prehistoric Open Camp Access Road Eligible/ Contributing 

Portion 

Avoid No Adverse Effect BLM/ Private 

48CR991 Historic Debris Scatter Access Road Not Eligible No Further Work No Effect BLM 48CR3648 Historic Rawlins To Baggs 

Stage Road 

Access Road Eligible/NonContributing Portion No Further Work No Adverse Effect BLM 

48CR1191 Historic Lincoln Highway Access Road Eligible/NonContributing Portion No Further Work Destroyed BLM 48CR4328 Historic Union Pacific 

Railroad Segment (Northern Grade) 

Access Road Eligible/NonContributing Portion No Further Work Destroyed BLM 

48CR4328 Historic Union Pacific 

Railroad Segment (Middle Grade) 

Access Road Eligible/NonContributing Portion No Further Work No Adverse Effect BLM 

48CR4328 Historic Union Pacific 

Railroad Segment (Southern GradeModern Alignment) 

Access Road Eligible/NonContributing Portion No Further Work No Adverse Effect BLM 

48CR7068 Historic Homestead / Debris 

Scatter 

Access Road Not Eligible No Further Work No Adverse Effect BLM 

48AB543 Historic Monument Road Access Road Eligible/ Contributing 

Portion 

No Further Work No Adverse Effect Private 

48AB357 Historic Union Pacific 

Railroad Segment 

Access Road Eligible/NonContributing Portion No Further Work No Adverse Effect Private 

48AB357 Historic Union Pacific 

Railroad Segment 

Pipeline Eligible/NonContributing Portion No Further Work No Adverse Effect Private 

48AB357 Historic Union Pacific 

Railroad Segment 

Pipeline Eligible/NonContributing Portion No Further Work No Adverse Effect BLM 

I-19 
Table I-2 Cultural Resources Located During the Class III Inventories of the Colorado Segment of the OPP Corridor 

Site 

Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

5LO66.1 Historic South Platte Ditch Pipeline Eligible Bore Private 5LO309.2 Historic North Sterling Canal Pipeline Eligible Bore Private 5LO346.2 Historic Union Pacific Railroad – 

Julesburg to LaSalle Branch 

Pipeline Eligible segment of 

officially eligible site 

Bore Private 

5LO442 Historic Beaver Creek to Sterling 

Transmission Line 

Pipeline Not eligible No further work Private 

5LO479.1 Historic U. S. Highway 6 Pipeline Eligible Bore State of Colorado 

ROW through Private 

5LO588 Historic Lutin Residence Pipeline, ATWS Not eligible No further work Private 5LO593.1 Historic Davis Brothers Ditch 

(Company Ditch) 

Pipeline Eligible Bore Private 

5LO594.1 Historic Prewitt Drain and Seepage 

Ditch 

Pipeline Eligible Bore Private 

5LO617.1 Historic South Platte Extension Ditch 

(Sand Hill Ditch) 

Pipeline Eligible Bore Private 

5MR563.3 Historic Riverside Canal Pipeline Eligible segment of 

officially eligible site 

Bore Private 

5MR868 Historic Camp Pipeline Not eligible No further work Private 5WL399 Prehistoric Lithic scatter Pipeline Eligible Avoid Alternate route 

avoids site 

USFS – PNG 

5WL402 Prehistoric Lithic procurement/tool 

manufacture 

Pipeline Not eligible No further work Private 

5WL403 Historic 

Prehistoric 

Kaohn Homestead Lithic scatter 

Pipeline Eligible 

Not eligible 

Avoid No further work 

Alternate route avoids site 

USFS – PNG 

5WL404 Historic Gottlob Fritz Homestead Pipeline Eligible No further work USFS – PNG 5WL405 Historic Drucker Homestead Pipeline Eligible Avoid Alternate route 

avoids site 

USFS – PNG 

5WL406 Prehistoric Artifact scatter/Bluff View/ 

Rattlesnake Ridge Site 

Pipeline Officially eligible Avoid Alternate route 

avoids site 

USFS - PNG 

5WL407 Historic 

Prehistoric 

Macomber Homestead Prehistoric artifact scatter 

Pipeline Officially not 

eligible 

No further work USFS – PNG 

I-20 
Table I-2 Cultural Resources Located During the Class III Inventories of the Colorado Segment of the OPP Corridor 

Site 

Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

5WL1066.1 Historic Burlington & Missouri 

Valley/Chicago, Burlington & Quincy/Burlington Northern RR 

Pipeline Eligible segment of 

officially eligible site 

Bore USFS – PNG 

5WL1066.2 Historic Burlington & Missouri 

Valley/Chicago, Burlington & Quincy/Burlington Northern RR 

Pipeline Eligible segment of 

officially eligible site 

Bore Private 

5WL1093 Prehistoric Tested cobbles/lithic scatter Pipeline Not eligible No further work Private 5WL1506 Prehistoric Artifact scatter/camp Pipeline Officially not 

eligible 

No further work USFS – PNG 

5WL1744 Historic 

Prehistoric 

Jesse Gardner Homestead Prehistoric isolated find 

Pipeline Officially not 

eligible 

No further work Private 

5WL1969.3 7 

Historic Union Pacific Railroad Pipeline Officially eligible Bore Union Pacific 

ROW through State of Colorado 

5WL2947.4 Historic Denver Pacific Railroad Pipeline Officially eligible Bore State of Colorado 5WL2947.6 Historic Union Pacific Railroad Access Road Officially eligible No further work Union Pacific 

ROW through Private 

5WL2956.2 Historic Colorado Railroad/Colorado 

& Southern Railroad – Dixon to Cheyenne 

Pipeline Officially eligible Bore Burlington 

Northern ROW through State of Colorado 

5WL3989 Prehistoric 

Historic 

Prehistoric artifact scatter and historic artifact scatter 

Pipeline, ATWS Officially not 

eligible 

No further work Private 

5WL3996 Prehistoric Artifact scatter None Officially not 

eligible 

No further work USFS – PNG 

5WL4777 Prehistoric Artifact scatter Pipeline Eligible Avoid Alternate route 

avoids site 

State of Colorado 

5WL4784 Historic Artifact scatter Pipeline Officially not 

eligible 

No further work USFS – PNG 

I-21 
Table I-2 Cultural Resources Located During the Class III Inventories of the Colorado Segment of the OPP Corridor 

Site 

Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

5WL5118 Historic Artifact scatter Pipeline Not eligible No further work City of Fort 

Collins 

5WL5119 Historic Richard Lilly Homestead None Eligible No further work Private 5WL5120 Historic Artifact scatter None Not eligible No further work Private 5WL5124 Prehistoric Artifact scatter None Not eligible No further work Private 5WL5125 Historic Ashmun Homestead None Not eligible No further work Private 5WL5134 Historic Artifact scatter None Not eligible No further work Private 5WL5135 Prehistoric Artifact scatter None Not eligible No further work Private 5WL5136 Prehistoric Artifact scatter Pipeline Eligible Avoid Alternate route 

avoids site 

Private 

5WL5143 Historic Bowles Homestead None Eligible No further work Private 5WL5145 Historic James Dean Homestead Pipeline Eligible No further work USFS - PNG 5WL5149 Historic Cohen Homestead Pipeline Not eligible No further work Private 5WL5151 Prehistoric Lithic procurement/lithic 

reduction 

Pipeline Not eligible No further work Private 

5WL5152 Prehistoric Lithic procurement/lithic 

scatter 

Pipeline Eligible Avoid Alternate route 

avoids site 

Private 

5WL5156 Prehistoric Lithic scatter Pipeline Not eligible No further work USFS – PNG 5WL5158 Historic Residential Pipeline, 

ATWS1 

Eligible Avoid Alternate route 

avoids site2 

Private 

5WL5159 Prehistoric Lithic scatter Pipeline Not eligible No further work Private 5WL5161 Historic Shaw Homestead Pipeline Not eligible No further work Private 5WL5162 Prehistoric Artifact scatter Pipeline Not eligible No further work Private 5WL5163 Historic William R. Lemmons 

Homestead 

None Eligible No further work Private 

5WL5164 Historic Possible residence None Not eligible No further work Private 5WL5166.1 Historic Road Pipeline Not eligible No further work USFS – PNG 5WN184 Prehistoric Lithic scatter None Not eligible No further work Private 5WN189 Historic Artifact scatter None Not eligible No further work Private 5WN190 Prehistoric Artifact scatter None Not eligible No further work Private 5WN191 Historic Bussear Homestead Pipeline Not eligible No further work Private 5WN192 Historic Artifact scatter Pipeline Not eligible No further work Private 

I-22 
Table I-2 Cultural Resources Located During the Class III Inventories of the Colorado Segment of the OPP Corridor 

Site 

Number Culture Site Type or Name Project Facility 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural Work Land Owner 

5WN197 Historic Farm complex None Not eligible No further work Private 5YM43 Historic Chicken coop None Officially not 

eligible 

No further work Private 

5YM44 Prehistoric Open camp Pipeline Not eligible No further work Private 5YM63 Prehistoric Lithic scatter None Not eligible No further work Private 5YM64 Prehistoric Lithic scatter Pipeline Not eligible No further work Private 5YM245.1 Historic DeArmond Irrigation Ditch 

No. 1 

Pipeline Not eligible No further work State of Colorado 

5YM246.1 Historic Road Pipeline Not eligible No further work State of Colorado 5YM247.1 Historic Eckley to Wray Road Pipeline Not eligible No further work Private 5YM259.1 Historic Chicago, Burlington & 

Quincy Railroad – Chicago to Denver Line 

Pipeline Eligible Bore Burlington 

Northern ROW through State of Colorado 

1ATWS identified on site after submission of inventory report. 2Alternate route inventoried to avoid site after submission of inventory report; will be reported on in an addendum report.

I-23 
Table I-3 Cultural Resources Located During the Class III Inventories of the Kansas Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility1, 2 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural 

Work 

Land 

Owner 

14CN00103 Historic Agrarian Pipeline Not Eligible No further work Private 14CN00104 Prehistoric Probable Kill Pipeline Unevaluated No further work Avoided by 

reroute 

Private 

14CN00102 Prehistoric Lithic Scatter/ Camp Pipeline Unevaluated No further work Avoided by 

reroute 

Private 

14RW00102 Prehistoric Lithic Scatter/ Camp Pipeline Not Eligible No further work Private 14RW00101 Historic Machinery dump Pipeline Not Eligible No further work Private 14RW00103 Prehistoric Camp Pipeline Not Eligible No further work Private 14RW00104 Historic Domestic Pipeline Unevaluated No further work Avoided by 

reroute 

Private 

14SD00111 Historic Domestic/ Agrarian Pipeline Not Eligible No further work Private 14SD00106 Historic Domestic/ Dump Pipeline Not Eligible No further work Private 14SD00105 Historic/ 

Prehistoric 

Artifact Scatter Pipeline/ ATWS 

4A0C5 

Not Eligible No further work Private 

14SD00107 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 14SD00108 / 14SD00109 

Prehistoric Lithic Scatter Pipeline Eligible Avoid or Data 

Recovery 

Data Recovery 

Private 

14SD00112 Prehistoric Lithic Scatter Pipeline/ 

Wakeeney Pump Station 2, Alt 1 and 2/ ATWS 4DCE2 and 424B7 

Not Eligible No further work Private 

14SD00102 Prehistoric Camp/Workshop Pipeline/ ATWS 

4DCE4 

Eligible Avoid or Data 

Recovery 

Data Recovery 

Private 

14SD00103 Prehistoric Lithic Scatter Pipeline Eligible Avoid or Data 

Recovery 

Data Recovery 

Private 

14SD00104 Prehistoric Lithic Scatter Pipeline/ ATWS 

4DCE6 

Eligible Avoid or Data 

Recovery 

Data Recovery 

Private 

I-24 
Table I-3 Cultural Resources Located During the Class III Inventories of the Kansas Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility1, 2 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural 

Work 

Land 

Owner 

14SD00110 Prehistoric Lithic Scatter Pipeline/ ATWS 

4EB66, 4EB67, 4EC5C, 4EC5D, 4CE5F, and 4EC5E 

Not Eligible No further work Private 

14SD00428 Historic/ 

Prehistoric 

Domestic/Camp/ Workshop 

Pipeline/ ATWS 4EC60 

Eligible No further work 

along approved alternate route 

Private 

14SD00452 Prehistoric Camp/Lithic 

Workshop 

Pipeline/ ATWS 4EC61 

Not Eligible No further work Private 

14SD00101 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 14GO00101 Prehistoric Lithic Scatter Pipeline/ ATWS 

4DCE8 

Not Eligible No further work Private 

14GO00102 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 14GO00301 Prehistoric Workshop Pipeline Not Eligible No further work Private 14TO00101 Historic/ 

Prehistoric 

Domestic/ Lithic Scatter 

Pipeline Not Eligible No further work Private 

14TO00306 Prehistoric Quarry/Workshop Pipeline Eligible Avoid or Data 

Recovery 

Data Recovery 

Private 

14TO00317 Prehistoric Quarry/Workshop/ 

Possible Camp 

Pipeline/ ATWS 49C8D (11222006) 

Not Eligible No further work Private 

14TO00314 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 14TO00102 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 14TO00112 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 14TO00113 Prehistoric Isolated Find Pipeline Not Eligible No further work Private 14TO00103 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 14TO00107 Prehistoric Lithic Scatter Pipeline/ ATWS 

4DCCA and 4DC7A 

Not Eligible No further work Private 

14TO00111 Historic Domestic/ Agrarian Pipeline Not Eligible No further work Private 14TO00108 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 14TO00110 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 

I-25 
Table I-3 Cultural Resources Located During the Class III Inventories of the Kansas Segment of the OPP Corridor 

Site Number Culture Site Type or Name Project Facility1, 2 

NRHP 

Recommendation 

Management 

Recommendations 

Status of 

Cultural 

Work 

Land 

Owner 

14TO00109 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 14RU00101 Prehistoric Lithic Scatter Pipeline Not Eligible No further work Private 14BT00101 Historic Domestic/ Agrarian Pipeline/ ATWS 

4E4E6 

Not Eligible No further work Private 

14BT00103 Historic Domestic Pipeline Not Eligible No further work Private 14BT00102 Historic Domestic Pipeline Not Eligible No further work Private 14RC00313 Prehistoric Village Pipeline Not Eligible No further work Private 14SD00421 Prehistoric Camp Abandoned 

Alternate Route 

Unevaluated No further work Abandoned 

Alternate Route 

Private 

14SD00426 Prehistoric Camp Abandoned 

Alternate Route 

Unevaluated No further work Abandoned 

Alternate Route 

Private 

14SD00431 Prehistoric Camp Abandoned 

Alternate Route 

Unevaluated No further work Abandoned 

Alternate Route 

Private 

14SD00432 Prehistoric Camp Abandoned 

Alternate Route 

Unevaluated No further work Abandoned 

Alternate Route 

Private 

14SD00433 Prehistoric Camp/ Lithic Scatter Pipeline/ ATWS 

4EC36, 4EC37, and 4EC3B 

Not Eligible (approved route only) 

No further work within approved route 

Private 

14TH00101 Prehistoric Lithic Scatter GEM Pipe yard Not Eligible No further work Private 1"Pipeline" refers to the 75-foot construction corridor. 2"ATWS" refers to an additional temporary workspace required for pipeline construction. 

I-26 
Appendix J 

Risk Assessment 
APPENDIX J 

Environmental Fate and Effects of Natural Gas Liquid Releases 

When natural gas is removed from the ground, it is compositionally different than what is transported 

through natural gas transmission systems and ultimately used as an energy source for end users for home 

heating and cooking, and industrial energy. When removed from the ground, the mixture is predominately 

methane, but also includes heavier hydrocarbons and inert gases. Although the mixture can vary greatly, a 

typical natural gas stream may include 85 percent methane, 10 percent heavier hydrocarbons called 

natural gas liquids (NGLs), and 5 percent inert gases. NGLs usually are removed from natural gas during 

processing. Lighter ends, including propane and butane may be removed, stored and shipped separately. 

Alternatively, the operator may simply ship raw NGLs to a NGL plant for separation. 

NGLs exist in fields as constituents of natural gas but are recovered separately as liquids. NGL should not 

be confused with natural gas, which is composed primarily of methane. NGL molecules liquefy more 

readily than methane. Overland Pass NGLs are composed of 53 percent ethane, 25 percent propane, 

14 percent butane (normal and iso-), with smaller amounts (4 percent) of (iso) pentane, and pentane plus 

hexane and heptane (sometimes referred to as natural gasoline or plant condensate) (Table J-1). NGL is 

denser than natural gas and becomes combustible at different concentrations than methane. 

. 

Table J-1. Composition of Overland Pass Pipeline NGLs 

Component Liquid Volume Percent 

Methane 0.36 

Ethane 53.16 

Propane 25.75 

Butanes 13.50 

Pentanes 4.42 

Hexanes + 2.61 

BTEX 0.12 

Carbon dioxide 0.11 

Note: Specific gravity is 0.446 

NGLs have a variety of different uses, including enhancing oil recovery in oil wells, providing raw materials 

for oil refineries or petrochemical plants, and as sources of energy. They can also be used in many 

applications, such as: 

• Ethane is primarily used for the production of plastics. 

• Propane is typically used for heating purposes, gas grills, lanterns etc, but can also be used in the 

production of plastics. 

• Butanes and natural gasoline are primarily used for motor gasoline blending 

Properties and Hazards 

Ethane (C2H6) exists as a colorless, odorless gas at ambient pressure and temperature. It is heavier than 

air and may concentrate in low-lying areas. Although ethane is not considered highly toxic it can replace 

oxygen molecules and cause asphyxiation. 

Propane (C3H8) also exists as a gas at ambient pressure and temperature, but is heavier than air with 

1.52 specific gravity as a vapor at 1 atmosphere and 60o F. (air = 1.0). Liquid Propane is lighter than 

water. It is about one-half as heavy as an equal volume of water. 

Butane (C4H10) exists in both gaseous and liquid forms at ambient pressure and temperature, being less 

stable than propane in a gaseous form. Butane is heavier than air and heavier than propane. Its main use 

J-1 
these days is industrial as a chemical feedstock (mostly after conversion to iso-butane), and is otherwise 

more waste than product. 

Heavier NGLs (C5H12+), such as pentanes, hexanes, heptanes exist as liquids at ambient pressure and 

temperature and are shipped in liquid form. Heavier NGLs often are used as a diluent for shipping crude 

oil via pipeline; it reduces the viscosity of heavier crude oils. 

Once released into the environment, NGLs are volatilized and quickly evaporate. NGLs are not generally 

toxic; however, as the gas takes the place of air, it becomes a simple asphyxiant and can cause 

suffocation from lack of oxygen. Hydrocarbon liquids shipped via pipelines generally have vapors that are 

heavier than air and that will collect in low or enclosed areas. These vapors are simple asphyxiants in that 

they will displace oxygen and create an oxygen-deficient atmosphere in those areas. NGLs are relatively 

non-toxic below the lower explosive limits (e.g., 30,000 ppm for ethane). Direct exposure to NGLs can 

result in frostbite to the skin and headache or nausea if inhaled. In addition, an accidental release of NGL, 

while in transport, may result in the following hazards: 

• POOL FIRES - Upon release, heavier NGLs are flammable and, therefore, pose the hazard of 

thermal radiation. 

• FIREBALLS - A large, pressurized release of a liquefied hydrocarbon such as propane or butane 

may burn in the form of a fireball, which grows larger and also moves upwards. Thermal radiation 

is the related hazard. 

• VAPOR CLOUD FIRES - Upon release, propane or butane can form a vapor cloud that spreads 

horizontally. If little or no wind is present and atmospheric conditions are very stable, the 

spreading cloud mixes slowly with oxygen. It can burst into flames if ignited and flash back to the 

source of the release. Thermal radiation is the hazard. 

• VAPOR CLOUD EXPLOSIONS - NGL vapor clouds are potentially explosive both in unconfined 

and confined situations. The hazard of such an explosion generally results from building damage 

or breaking windows. 

Table J-2 provides a summary of the general chemical characteristics of NGLs. 

Table J-2 Summary of Properties and Hazards

 Ethane n-Butane Propane Pentane+ 

Formula C2H6 C4H10 C3H8 C5H12 

Family Hydrocarbon Hydrocarbon Hydrocarbon Hydrocarbon 

Appearance liquid Colorless Colorless colorless colorless 

Appearance vapor Foggy in Foggy in Foggy in Foggy in 

concentration concentration concentration concentration 

Odor Odorless Virtually odorless Odorless Odorless 

Main hazard Flammable Flammable Flammable Flammable 

BP@ATP -88.6°C -0.5°C -42.1°C °C 

Flash point -135°C -60°0C -105°C °C 

Flammable limits 3.0-12.5% 1.9-9.0% 2.1-9.5% % 

(LEL – UEL) 

Auto-ignition 515°C 405°C 450°C °C 

TLVa No TLV 800 ppm critical effect 2500 ppm critical 600 ppm critical 

narcosis effect simple effects irritation and 

asphyxiant narcosis 

Odor threshold Odorless 5000 ppm Odorless Odorless 

Reaction-air No reaction No reaction No reaction No reaction 

Reaction - water No dangerous No dangerous No dangerous No dangerous 

reaction reaction reaction* reaction* 

a

ACGIH 

*may form solid hydrates, insoluble. 

J-2 
Environmental Fate 

Accidental releases of NGLs can occur during pipeline transport. Media distribution calculations according 

to Mackay Level 1 (1992) show that in the event of an accidental release of NGLs all of the material will 

end up in the air compartment due to the volatility of the hydrocarbons (API 2000). 

Aerobic biodegradation of ethane is greater than 65% after 35 days (ZoBell 1963). API Robust Summary 

of Information on Petroleum Gases (2000) notes that ethane, propane and butane can be used by bacteria 

as carbon sources. When released into water, most of the NGLs will float to the surface where they will 

evaporate. 

Evaporation will be the primary mechanism of loss for NGLs, rapidly reducing exposure and toxicity. 

Dissolution of NGLs in water is not a significant process (i.e., NGS are negligibly water soluble). 

Photodegradation of NGLs increases with greater solar intensity. It can be a significant controlling factor, 

especially of lighter products and constituents; but it will be less important during cloudy days and winter 

months. 

Overall, the environmental fate of released NGLs is controlled by many confounding factors. Major factors 

affecting the environmental fate include spill volume, type of product, dispersal rate of the product, terrain, 

and weather. In the event of a leak, NGLs released from the pipeline would begin to vaporize, the gases 

would percolate through the soil and sediments, and then dissipate into the atmosphere. Only that 

component of the NGL stream that does not readily volatilize at atmospheric pressure (approximately 2 to 

4 percent of the NGL) would remain to potentially migrate through the overlying surface materials and 

enter the groundwater. Once released, the physical environment largely dictates the environmental 

persistence of the spilled material. Generally, NGLs evaporate quickly and releases would be expected to 

rapidly dissipate. 

Environmental Effects 

If released into the environment, NGLs pose a range of risks to the environment and to human 

populations. NGLs shipped via pipelines generally have vapors that are heavier than air and that will 

collect in low or enclosed areas. These vapors are simple asphyxiants in that they will displace oxygen 

and create an oxygen-deficient atmosphere in those areas. 

Hydrocarbon vapors are flammable or combustible, although different hydrocarbon liquids have different 

flash points (the temperatures at which sufficient flammable vapors are emitted) and flammable ranges 

(the range of vapor concentration in air expressed as a percentage by volume). This potential for 

flammability is likely the most serious threat to human health and the environment. 

NGLs released to the environment may cause adverse biological effects on birds and mammals via 

inhalation exposure from highly volatile compounds. Acute toxic effects include narcotic effects, and 

possible death. While releases of NGLs may have an immediate and direct effect on wildlife populations, 

the potential for physical and toxicological effects attenuates quickly as the volume of material diminishes. 

In mammals, high molecular weight alkanes are considered virtually nontoxic. Overall, NGLs have rapid 

rates of evaporation and low environmental persistence, thus the primary hazard from NGLs is considered 

to be acute, not chronic, airborne toxicity. Short-term impacts to vegetation in the area of a release may be 

possible. Aquatic toxicity of petroleum gases is not applicable. 

Rats exposed to various concentrations of propane in air showed signs of central nervous system 

depression, intoxication and death. Recovery from a non-lethal exposure was rapid. The calculated effect 

concentration (EC50) was 280,000 ppm (504,996 mg/m3

 (Clark & Tinson 1962). A similar study with 

isobutene resulted in an EC50 of 200,000 ppm (475,444 mg/m3). Hydrocarbons that volatilize into the 

atmosphere are broken down into smaller compounds by photodegradation and photo-oxidation 

J-3 
The behavioral responses of terrestrial wildlife may help reduce potential adverse effects. Many birds and 

mammals are mobile and will avoid leak areas. The greatest environmental impact of an NGL spill is the 

potential for fire and the resulting short-term ecological devastation. 

Additional information regarding the fate of NGL and specific NGL components if accidentally released into 

the environment, including groundwater, can also be found in sections 4.3.4.1 and 4.3.4.2 of the 

Environmental Assessment for the Mid-America Pipeline Company, LLC (MAPL) Western Expansion 

Project. This Environmental Assessment was prepared by the BLM in 2005. The BLM’s Environmental 

Assessment concluded that “a release from an NGL pipeline would result in the evaporation of most, if not 

all, of the liquids on the surface of the ground or in the vadose zone above the water table. Under certain 

conditions it would be possible for a very small portion of the release to reach the water table. Because of 

their slight solubility in water, contamination from NGLs would be limited to a few parts-per-million. These 

concentrations would be further reduced by diffusion and natural attenuation further reducing the risk to 

potential receptors.” This Environmental Assessment is available at 

http://www.nm.blm.gov/nmso/mid_am_pipeline/mid_am_pipeline.htm. 

Assessment of Worst Case Scenario 

As noted, in the event of a pipeline rupture NGLS will mostly volatilize and quickly dissipate, thereby 

minimizing the potential impacts to both humans and ecological receptors. The product contains 0.12% 

benzene, which, if enough material is spilled, could impact aquatic organisms or humans ingesting 

drinking water from the contaminated source. The potential for impacts was investigated by evaluating a 

conservative scenario whereby a complete pipeline rupture is assumed to dump the entire spilled product 

directly into the water. Mixing is assumed to be immediate and complete and the aquatic organisms and 

humans are assumed to live in and drink water containing the estimated benzene concentration from that 

location. Acute and chronic exposure of organisms and ingestion of water by humans are examined. 

The pipeline throughput is assumed to be 150,000 bpd. Two stream flows were evaluated; moderate 

(100 cfs) and high (1000 cfs). In addition, two occurrences were evaluated; 

• Complete rupture of the pipeline, and 

• 1% leak. 

Benzene concentrations were estimated assuming: 

• All of the spilled product from the leak or rupture goes into the water 

• Benzene is completely solubilized in the water column 

Acute Chronic Drinking Water 

Rupture Time: 1-hour 1-hour 1-hour 

Averaging Time: 0-hours 168-hours (7-day) 24-hours 

Toxicity Value: 7.4 mg/L 1.4 mg/L 0.005 mg/L 

If 6,250 barrels of product are spilled to a moderate flow stream the potential benzene concentrations at 

that location will be at a level seven times the acute toxicity threshold. Concentrations would rapidly drop 

as the plume moves downstream. The occurrence interval for this scenario is greater than every 

50,000 years. All other predicted water concentrations would be below the acute toxicity threshold in water 

(Table J-3). No long-term or chronic impacts would be expected (Table J-4); however, if the spill occurred 

directly into a drinking water source, the potential benzene concentration could exceed the corresponding 

MCL, if it is assumed that at least 62.5 barrels are spilled into the water (Table J-5). Based on the 

occurrence interval, the likelihood of an impact to drinking water is very low. 

J-4 
Table J-3 Comparison of the Acute Toxicity Threshold for Aquatic Life with Estimated 

Benzene Concentrations following Pipeline Rupture or Leak to Streams 

Throughput – 

150,000 bpd 

Stream 

Flow Rate 

(cfs) 

Benzene 

Acute 

Toxicity 

Threshold 

(mg/L) 

Scenarioa Projected 

Occurrence 

Intervalc 

(# yrs between spills) 

Complete rupture 

(6250 barrels) 

1% Leak 

(62.5 barrels) 

(mg/L) (mg/L) 

Complete 

Rupture 

1% 

Leak 

Moderate Flow 

Stream 

100 7.4 52b 0.5 51,496 23,303 

High Flow 

Stream 

1000 7.4 5 0.1 9,363 4,237 

a Estimated proportion of benzene in the NGL is 0.12 percent, and is assumed to be entirely water solubilized in the event of a spill. 

The resulting concentration was calculated by multiplying 0.12 percent of the total amount of petroleum product released in 1 hour 

divided by projected stream flow volume. The model assumes uniform mixing conditions. 

b Shading indicates concentrations greater than the acute toxicity threshold for aquatic species. c

 Projected occurrence interval based on historical data from OPS hazardous liquids database. 

Table J-4 Chronic Toxicity Threshold for Aquatic Life Compared with Estimated Benzene 

Concentrations following Pipeline Rupture or Leak to Streams

Throughput – 

150,000 bpd 

Stream 

Flow 

Rate 

(cfs) 

Benzene 

Chronic 

Toxicity 

Thresholda 

(mg/L) 

Scenariob 

Projected Occurrence 

Intervalc 

(# yrs between spills) 

Complete 

rupture 

(19,563 barrels) 

1% Leak 

(221 barrels) 

(mg/L) (mg/L) 

Complete 

Rupture 1% Leak 

Moderate Flow 

Stream 

100 1.4 1.0 0.56 189,600 51,496 

High Flow 

Stream 

1000 1.4 0.1 0.06 34,473 9,363 

a The chronic toxicity value for benzene is based on a 7-day chronic toxicity value of 1.4 mg/L for trout. Exposure concentrations were 

estimated over a 7-day period since the chronic toxicity value was based on a 7-day exposure. b Estimated proportion of benzene in the petroleum product is 0.12 percent, and is assumed to be entirely water solubilized in the 

event of a spill. The resulting concentration was calculated by multiplying 0.12 percent of the maximum amount of petroleum 

product divided by 7 days of stream flow volume. The model assumes uniform mixing conditions. c

 Projected occurrence interval based on historical data from OPS hazardous liquids database. 

Table J-5 Human Drinking Water Standard Compared with Estimated Benzene 

Concentrations following Pipeline Rupture or Leak to Streams 

Throughput – 

150,000 bpd 

Stream 

Flow Rate 

(cfs) 

Benzene 

MCL 

(mg/L) 

Scenarioa Projected 

Occurrence 

Intervalc 

(# yrs between spills) 

Complete 

Rupture 

(6250 barrels) 

1% Leak 

(62.5 barrels) 

(mg/L) (mg/L) Complete 

Rupture 

1% 

Leak 

Moderate Flow 

Stream 

100 0.005 2.2b 0.02 51,496 23,303 

High Flow 

Stream 

1000 0.005 0.02 0.002 9,363 4,237 

a Estimated proportion of benzene in the petroleum product is 0.12 percent, and is assumed to be entirely water solubilized in the 

event of a spill. The resulting concentration was calculated by multiplying 0.12 percent of the amount of petroleum product 

released in 1 hour during a pipeline rupture by 24 hours of stream flow. b Shading indicates concentrations that could exceed the maximum containment level (MCL) for drinking water (0.005 mg/L). c

 Projected occurrence interval based on historical data from OPS hazardous liquids database. 

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References: 

American Petroleum Institute 2000. Robust Summary of Information on Petroleum Gases. 15 August 2000. 

Clark D.G. and Tinson, D.J. 1982. Acute Inhalation Toxicity of some Halogenated and Non-Halogenated 

Hydrocarbons. Human Toxicol. Vol. 1, pp 239-247 

Mackay, D, Paterson, S., & Shiu, W. Y.1992. Generic Models for Evaluating the Regional Fate of Chemicals. 

Chemosphere, 24, 695-717 

ZoBell C.E. 1963. The occurence, effects and fate of oil polluting the sea. Int. J. Air Wat. poll. Pergamon Press 

Vol. 7, pp 173-198. 

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