U.S. Department of the Interior

U.S. Geological Survey

Open-File Report 2014-1062

Prepared in cooperation with the Bureau of Land Management 

Groundwater and Surface-Water Resources in the 

Bureau of Land Management Moab Master Leasing Plan 

Area and Adjacent Areas, Grand and San Juan Counties, 

Utah, and Mesa and Montrose Counties, Colorado
Cover photo: 

Large photo, looking west from Green River Overlook, Canyonlands National 

Park Island in the Sky District, April 2013.

Small photo, looking south from Wooden Shoe Arch Overlook, Canyonlands 

National Park Needles District, April 2013.
Groundwater and Surface-Water 

Resources in the Bureau of Land 

Management Moab Master Leasing Plan 

Area and Adjacent Areas, Grand and 

San Juan Counties, Utah, and Mesa and 

Montrose Counties, Colorado 

By Melissa D. Masbruch and Christopher L. Shope 

Prepared in cooperation with the Bureau of Land Management 

Open-File Report 2014–1062 

U.S. Department of the Interior

U.S. Geological Survey
U.S. Department of the Interior

SALLY JEWELL, Secretary

U.S. Geological Survey

Suzette M. Kimball, Acting Director

U.S. Geological Survey, Reston, Virginia: 2014

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Suggested citation:

Masbruch, M.D., and Shope, C.L., 2014, Groundwater and surface-water resources in the Bureau of Land Management Moab Master Leasing Plan area and adjacent areas, Grand and San Juan Counties, Utah, and Mesa and 

Mon-trose Counties, Colorado: U.S. Geological Survey Open-File Report 2014-1062, 85 p. http://dx.doi.org/10.3133/

ofr20141062.

ISSN 2331-1258
iii

Contents

Abstract...........................................................................................................................................................1

Introduction ....................................................................................................................................................2

Purpose and Scope ..............................................................................................................................2

General Description of the Study Area .............................................................................................2

Previous Investigations .......................................................................................................................4

Geology ...........................................................................................................................................................5

Hydrogeologic Characterization .................................................................................................................6

Unconsolidated Aquifers.....................................................................................................................8

Mesaverde Aquifer...............................................................................................................................8

Mancos Confining Unit ........................................................................................................................9

Dakota Aquifer.......................................................................................................................................9

Brushy Basin Confining Unit ...............................................................................................................9

Morrison Aquifer...................................................................................................................................9

Tidwell-Summerville Confining Unit ................................................................................................10

Entrada Aquifer...................................................................................................................................10

Dewey Bridge Confining Unit ...........................................................................................................11

Glen Canyon Group Aquifer ..............................................................................................................11

Lower Mesozoic Confining Unit .......................................................................................................12

Cutler Formation Aquifer ...................................................................................................................12

Upper Paleozoic Confining Unit .......................................................................................................12

Lower Paleozoic Aquifer System .....................................................................................................13

Surface-Water Resources .........................................................................................................................13

Perennial Streams and Rivers ..........................................................................................................13

Ephemeral or Intermittent Streams ................................................................................................15

Surface-Water Data ...........................................................................................................................15

Daily Streamflow Statistics .....................................................................................................15

General Streamflow Classification ................................................................................24

Surface-Water Quality .......................................................................................................................26

Groundwater.................................................................................................................................................30

Springs .................................................................................................................................................30

Wells ..................................................................................................................................................30

Water Levels ..............................................................................................................................30

Potential Recharge Areas .................................................................................................................69

Groundwater Budget .........................................................................................................................69

Recharge.....................................................................................................................................69

Direct Infiltration of Precipitation ..................................................................................73

Seepage From Streams and Irrigation Water .............................................................73

Subsurface Inflow ...........................................................................................................73

Discharge....................................................................................................................................74

Seepage to Streams.........................................................................................................74

Evapotranspiration ...........................................................................................................74

Springs and Seeps ...........................................................................................................74
iv

Well Withdrawals and Groundwater Use ....................................................................75

Subsurface Outflow .........................................................................................................75

Groundwater Quality .........................................................................................................................77

Lower Paleozoic Aquifer System ............................................................................................77

Cutler Formation Aquifer ..........................................................................................................77

Glen Canyon Group Aquifer .....................................................................................................79

Entrada Aquifer..........................................................................................................................79

Morrison Aquifer........................................................................................................................79

Dakota Aquifer ...........................................................................................................................79

Mesaverde Aquifer ...................................................................................................................79

Unconsolidated Aquifers..........................................................................................................79

Brines and Saline Groundwater.......................................................................................................80

Future Work ..................................................................................................................................................80

Summary .......................................................................................................................................................80

References Cited .........................................................................................................................................82

Figures

1. Map showing location of the study area and Moab Master Leasing Plan area, Utah

and Colorado ..................................................................................................................................3

2. Map showing location of surface-water sites within the study area reported in the

National Water Information System database .......................................................................14

3. Map showing location of U.S. Geological Survey streamgages used to compute daily

streamflow statistics within the study area and associated group classification ...........23

4. Hydrographs showing daily stream discharge statistics of representative streams

for each of the six stream groups within the study area ......................................................24

5. Hydrographs showing mean annual surface-water discharge, grouped by stream

classification ................................................................................................................................27

6. Map showing mean field-measured specific conductance for surface-water sites

within the study area ..................................................................................................................29

7. Map showing location of spring sites within the study area reported in the National

Water Information System database .......................................................................................31

8. Map showing location of wells within the study area reported in the National Water

Information System database ...................................................................................................32

9. Map showing mean discharge for springs reported in the National Water Information

System database within the study area ..................................................................................38

10. Map showing mean water-level altitude for wells reported in the National Water

Information System database within the study area .............................................................63

11. Map showing location of wells within the study area that have long-term water-level

records reported in the National Water Information System database .............................64

12. Hydrographs of wells with long-term water-level records within the study area ................65

13. Map showing distribution of hydrologic soil characteristics and areas with more

than 8 inches of winter precipitation within the study area .................................................70
v

14. Map showing locations of previous groundwater studies with estimated groundwater budget components .........................................................................................................71

15. Map showing use of groundwater from well withdrawals throughout the study area 

as reported by the Utah Division of Water Rights ..................................................................76

16. Map showing mean field-measured specific conductance of groundwater from 

springs and wells within the study area ..................................................................................78

Tables

1. Principal aquifers and confining units within the study area, Utah and Colorado .................7

2. Streamgage and surface-water sites that have more than location data reported in 

the National Water Information System database within the study area, Utah 

and Colorado ................................................................................................................................16

3. Streamgages with daily discharge data from the National Water Information System 

database used to estimate streamflow statistics within the study area, Utah and 

Colorado ........................................................................................................................................21

4. Spring sites with discharge and (or) water-quality data as reported in the National 

Water Information System database, within the study area, Utah and Colorado ............33

5. Well sites with water-level and (or) water-quality data as reported in the National 

Water Information System database, within the study area, Utah and Colorado ............39

6. Summary of previously reported estimates of groundwater-budget components for 

Moab-Spanish Valley and parts of the Paradox Basin ..........................................................72
vi

Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows:

°F=(1.8×°C)+32

In this report, specific conductance is reported in microsiemens per centimeter (μS/cm).

*Transmissivity: The standard unit for transmissivity is cubic foot per day per square foot times 

foot of aquifer thickness [(ft3/d)/ft2]ft. In this report, the mathematically reduced form, foot 

squared per day (ft2/d), is used for convenience.

Datums

Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 

(NGVD 29).

Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).

Altitude, as used in this report, refers to distance above the vertical datum. 

Conversion Factors and Datums 

SI to Inch/Pound

Multiply By To obtain

Length

inch (in.) 2.54 centimeter (cm)

foot (ft) 0.3048 meter (m)

mile (mi) 1.609 kilometer (km)

Area

acre 0.004047 square kilometer (km2)

square mile (mi2) 2.590 square kilometer (km2) 

Volume

acre-foot (acre-ft) 1,233 cubic meter (m3) 

Flow rate

gallon per minute (gal/min) 0.06309 liter per second (L/s)

cubic foot per second (ft3/s) 0.02832 cubic meter per second (m3/s)

acre-foot per year (acre-ft/yr) 1,233 cubic meter per year (m3/yr)

Radioactivity

picocurie per liter (pCi/L) 0.037 becquerel per liter (Bq/L) 

Transmissivity*

foot squared per day (ft2/d) 0.09290 meter squared per day (m2/d)
Groundwater and Surface-Water Resources in the Bureau 

of Land Management Moab Master Leasing Plan Area and 

Adjacent Areas, Grand and San Juan Counties, Utah, and 

Mesa and Montrose Counties, Colorado

By Melissa D. Masbruch and Christopher L. Shope

Rivers) integrate the regional hydrologic partitioning of a very 

large contributing area and, therefore, the hydrographs for 

these streams are much more smooth and consistent. Several 

streams throughout the study area are considered impaired and 

do not meet the standards set by the Environmental Protection 

Agency for specific designated-use classifications.

Limited data are available to quantitatively estimate the 

large-scale regional groundwater budget for the study area. 

Previous studies have estimated groundwater budgets for 

areas in and adjacent to the current study area, namely MoabSpanish Valley and parts of the Paradox Basin. Most groundwater recharge to the study area originates as infiltration of 

precipitation from upland areas and is further enhanced in 

areas covered with sandy soils or in areas where the bedrock 

is highly fractured. Additional groundwater recharge occurs as 

seepage from streams and irrigation water, and as subsurface 

inflow, both vertically between aquifers and as lateral movement into the study area. Groundwater discharge occurs as 

seepage to streams, evapotranspiration, to springs and seeps, 

well withdrawals; and as subsurface outflow, both vertically 

between aquifers and as lateral movement out of the study area 

across its defined boundaries. Groundwater use in the study 

area was determined using data from the Utah Division of 

Water Rights. Most wells in the study area are categorized as 

having multiple uses.

Mean specific-conductance values for groundwater from 

wells and springs in the study area range from 101 to 220,000 

microsiemens per centimeter at 25° C (μS/cm); most of the 

wells or springs have mean specific-conductance values of less 

than or equal to 1,000 μS/cm. Previously reported total dissolved-solids concentrations, specific conductances, and other 

groundwater-quality data for each of the principal aquifers 

indicate relative freshwater throughout the study area, except 

within the lower aquifer system and areas in contact with the 

Paradox Member of the Hermosa Formation evaporites.

There is limited information on the resource availability 

of brines and saline groundwater in the study area. Total 

dissolved-solids concentrations typically are high (greater than 

Abstract

The Bureau of Land Management (BLM) Canyon Country 

District Office is preparing a leasing plan known as the Moab 

Master Leasing Plan (Moab MLP) for oil, gas, and potash 

mineral rights in an area encompassing 946,469 acres in southeastern Utah. The BLM has identified water resources as being 

potentially affected by oil, gas, and potash development and 

has requested that the U.S. Geological Survey prepare a summary of existing water-resources information for the Moab 

MLP area. This report includes a summary and synthesis of 

previous and ongoing investigations conducted in the Moab 

MLP and adjacent areas in Utah and Colorado from the early 

1930s through the late 2000s.

Eight principal aquifers and six confining units were 

identified within the study area. Permeability is a function of 

both the primary permeability from interstitial pore connectivity and secondary permeability created by karst features or 

faults and fractures. Vertical hydraulic connection generally 

is restricted to strongly folded and fractured zones, which are 

concentrated along steeply dipping monoclines and in narrow 

regions encompassing igneous and salt intrusive masses. Several studies have identified both an upper and lower aquifer 

system separated by the Pennsylvanian age Paradox Member 

of the Hermosa Formation evaporite, which is considered 

a confining unit and is present throughout large parts of the 

study area.

Surface-water resources of the study area are dominated 

by the Colorado River. Several perennial and ephemeral or 

intermittent tributaries join the Colorado River as it flows 

from northeast to southwest across the study area. An annual 

spring snowmelt and runoff event dominates the hydrology 

of streams draining mountainous parts of the study area, and 

most perennial streams in the study area are snowmelt-dominated. A bimodal distribution is observed in hydrographs from 

some sites with a late-spring snowmelt-runoff peak followed 

by smaller peaks of shorter duration during the late summer. 

The large regional streams (Colorado, Green, and Dolores 
2 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

35,000 milligrams per liter) in groundwater from, or in contact 

with, the Paradox Member of the Hermosa Formation. Total 

dissolved-solids concentrations also are high in groundwater 

samples collected from the lower aquifer system. Because the 

Paradox Member of the Hermosa Formation is considered 

a barrier to vertical groundwater flow, most of the brine and 

saline groundwater resources are restricted to the lower aquifer 

system.

Introduction

The Bureau of Land Management (BLM) Canyon Country 

District Office is preparing a leasing plan known as the Moab 

Master Leasing Plan (Moab MLP) for oil, gas, and potash 

mineral rights in an area encompassing 946,469 acres in Grand 

and San Juan Counties in southeastern Utah. The BLM has 

received recent expressions of interest to lease about 120,000 

acres of BLM land for oil and gas exploration. Additionally, 

the BLM has received 170 potash mining permit applications 

covering 350,000 acres. This planning effort may lead to 

amendments to area resource management plans. An environmental impact statement (EIS) will be prepared to analyze 

development scenarios and land use plan alternatives with 

varying mitigation levels for mineral leasing. The BLM has 

identified water resources as being potentially affected by oil, 

gas, and potash development and has requested that the U.S. 

Geological Survey (USGS) prepare a summary of existing 

water-resources information for the Moab MLP area.

Purpose and Scope

The purpose of this report is to present a summary of the 

hydrogeology and existing water resources within the Moab 

MLP and adjacent areas. The report provides information 

that will assist the BLM in developing leasing configurations, 

addressing resource conflicts, and developing mitigation 

strategies for the Moab MLP area, and will serve as the basis 

for analysis of water-resource issues in the EIS. This report 

includes a summary and synthesis of previous and ongoing 

investigations conducted in the Moab MLP and adjacent areas 

from the early 1930s through the late 2000s.

The data compilation and summary are divided into several 

major parts including: (1) a description of the hydrogeology 

of the area with focus on the major aquifers, confining units, 

and geologic structures that may affect groundwater flow; (2) 

an assessment of surface-water resources including flow and 

general water-quality data, and a summary of streams identified as impaired with respect to water quality under the Clean 

Water Act; (3) an assessment of spring locations, discharge, 

and water-quality data; (4) an assessment of groundwater 

resources including potential recharge areas, water-level data, 

water-quality data, groundwater-use data, and summary of 

groundwater budget estimates for the area; and (5) an assessment of brackish groundwater as a potential water resource for 

use in potash development.

General Description of the Study Area

The Moab MLP area is located in southeastern Utah in the 

Upper Colorado River Basin (UCRB; fig. 1). The Moab MLP 

area surrounds two National Parks and is home to some of the 

most iconic natural scenery on the Colorado Plateau. About 2 

million people per year visit the area to participate in a wide 

variety of recreational activities (Bureau of Land Management, 2012). Additionally, the area has a high potential for 

the development of oil, gas, and potash production, which has 

steadily increased in the planning area during recent years 

(Bureau of Land Management, 2012).

The Moab MLP area includes approximately 946,469 

acres in southeastern Utah, encompassing 526,784 acres in 

Grand County and 419,685 acres in San Juan County (fig. 1). 

Nearly 783,000 acres of public lands are included within the 

Moab MLP area. The Moab MLP area is south of Interstate 

70 and surrounds Arches National Park. The Green River and 

Canyonlands National Park form the western boundary of the 

Moab MLP area. South of the city of Moab, the planning area 

extends between Canyonlands National Park and U.S. Route 

191, to just north of the Abajo Mountains and Monticello, 

Utah.

For the purposes of the hydrogeologic assessment presented in this report, the study area was extended beyond the 

boundaries of the Moab MLP area to the watershed boundaries 

that contribute water to the Moab MLP area (fig. 1). Inclusion of the surrounding watersheds in the study area provides 

a more complete analysis of water resources and movement 

of water near and through the Moab MLP area. The study 

area is bounded by the Book Cliffs on the north, the La Sal 

Mountains and Uncompahgre Plateau on the east, the Abajo 

Mountains on the south, and the Green River on the west. It 

includes all of Arches National Park and parts of Canyonlands 

National Park.

The study area is located entirely within the Canyonlands 

section of the Colorado Plateaus physiographic province 

(Fenneman, 1931; Fenneman and Johnson, 1946; Freethey 

and Cordy, 1991). The Canyonlands section encompasses the 

Green and Colorado Rivers and is dissected by numerous deep 

canyons dividing the Mesozoic aquifers into subregionally 

drained systems (Freethey and Cordy, 1991). The Canyonlands 

section is characterized by young to mature plateaus and large 

topographic relief. Although the 12,000-mi2 Paradox Basin 

is not a definable physiographic feature, it is described as an 

area of the Colorado Plateaus that is underlain by a sequence 

of Pennsylvanian-age evaporites dominated by halite bedding 

(Hite and Lohman, 1973), and occurs in areas throughout the 

southeastern part of the study area (fig. 1).

The study area has a diverse climate because of the variation in altitude and the orographic effect of mountains on the 

movement of air masses and storms. Pacific air masses and 

storm events dominate the regional weather from October 

through April, and warm moisture-laden air masses from the 

Gulf of Mexico are frequent occurrences throughout the summer. The summer monsoonal storm events are less frequent, 
Introduction 3

Figure 1. Location of the study area and Moab Master Leasing Plan area, Utah and Colorado. UTAH COLORADO

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY

DOLORES COUNTY

SAN MIGUEL COUNTY

MONTROSE

COUNTY

Colorado River

Colorado River

Green River

Dolores River

Salt Wash

Professor Creek

Onion Creek

Castle Creek

Placer Creek

Mill Creek

Kane Springs Creek

Indian

Creek

70

70

191

313

128

279

211

Green

River

Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book Cliffs

Uncompahgre Plateau

Castle Valley

Moab-Spanish Valley

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Island in 

the Sky

The

Needles

Moab Master Leasing Plan area

National Park

Study area boundary

Paradox Basin boundary

EXPLANATION

40

50

50

40

666

70

76

15

80

70

15

25

25

Denver

U T A H C O L O R A D O

Salt Lake

City

Study

area
4 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

although more intense, than the Pacific storms. Land-surface 

altitudes exceed 4,900 ft throughout much of the Colorado 

Plateaus province. Deep incised canyons, escarpments, and 

benches have resulted from differential erosion of variabledensity stratigraphic layers and typically parallel structural 

features (Weir and others, 1983). Land-surface altitudes in 

the study area range from 3,800 ft near the Colorado and 

Green Rivers to 12,700 ft in the La Sal Mountains. Mean 

annual precipitation ranges from a minimum of about 6 in. at 

Green River, Utah, to about 30 in. in the La Sal Mountains 

(Blanchard, 1990; Steiger and Susong, 1997).

The mean annual temperature near Moab (altitude 4,000 ft) 

is 13.3 °C, and ranges from -7.8 °C in January to 36.8 °C in 

July based on 124 years of records (Western Regional Climate 

Center, various dates). The mean annual temperature in the La 

Sal Mountains at an altitude of 9,560 ft is about 4 °C (Natural 

Resources Conservation Service, various dates).

Evaporation constitutes the bulk of consumptive water use 

(Weir and others, 1983), which includes water loss through 

vegetative transpiration and evaporation from land, vegetation, 

and water surfaces. The annual potential evapotranspiration 

rate for the Moab-Monticello area is about 40 in., and ranges 

from 25 in. near the higher mountain peaks to 55 in. at lower 

altitudes (Weir and others, 1983). These estimates of potential water loss may constitute a much greater estimate than 

actual water loss because soil moisture is nearly continuously 

deficient in arid and semiarid environments that occur in the 

canyons and valleys throughout the study area (Weir and others, 1983).

Two major regional streams, the Green River and the Colorado River, originate beyond the boundaries of the study area 

to the north and the northeast, respectively (fig. 1). The Green 

River joins the Colorado River in Canyonlands National Park 

on the western border of the study area. There are no major 

perennial tributaries to the Green River in the study area. 

There are, however, a number of ephemeral or intermittent 

tributaries that are discussed further in section, “Surface-Water 

Resources.” Several perennial and ephemeral or intermittent 

tributaries drain the areas of the Book Cliffs, Arches National 

Park, the La Sal Mountains and intervening mesas, and the 

Abajo Mountains entering the Colorado River upstream of 

its confluence with the Green River. The perennial tributaries from upstream to downstream include the Dolores River, 

Onion Creek, Professor Creek, Castle Creek, Salt Wash, Mill 

Creek, Kane Springs Creek, and Indian Creek (fig. 1).

Numerous springs and seeps occur throughout the study 

area; however, many of these springs have significant uncertainty associated with them in terms of location, discharge 

magnitude, and temporal variability. The springs are discussed 

further in section, “Groundwater.”

Previous Investigations

A number of hydrogeologic studies have been done in the 

UCRB and the study area. Jobin (1962) identified and characterized the transmissive capacity of the Colorado Plateau 

sedimentary aquifers in a study that focused on determining 

ore-bearing mineral distribution, in particular uranium deposits. Freethey and Cordy (1991) described the hydrogeology of 

the Mesozoic aquifers in the UCRB, and concluded that the 

southern region of the UCRB has the largest potential for the 

development of groundwater resources. Although the thickness of Mesozoic rocks in the southern region of the UCRB 

(less than 5,000 ft) is less than thicknesses in the northern 

region of the UCRB (greater than 5,000 ft), 50–75 percent of 

this Mesozoic rock thickness in the southern UCRB is aquifer 

material, indicating that only 25–50 percent of less than 

5,000 ft needs to be penetrated to tap the aquifers, decreasing 

groundwater-withdrawal costs (Freethey and Cordy, 1991). 

Geldon (2003) later described the hydrologic properties and 

groundwater-flow systems of the deeper Paleozoic aquifers in 

the UCRB.

More focused investigations of the hydrogeology within 

the Paradox Basin of southeastern Utah also include parts 

of the Moab MLP area. Baker (1933) described the general 

geology, water resources, and the potential for oil production 

in a number of sections of the Moab-Monticello area. One 

of the earliest recorded hydrologic reconnaissance studies 

in the Green River-Moab area was done by Thomas (1952). 

Hunt (1958) focused on the structural and igneous geology 

of the La Sal Mountains and described and characterized a 

number of local water resources. The Quaternary stratigraphy 

and the physiographic development of the La Sal Mountains 

were further described by Richmond (1962). Irons and others 

(1965) and Price and Arnow (1974) examined the geohydrology and water resources of the UCRB from Green River to 

Monticello, Utah. Feltis (1966) analyzed the bedrock hydrology from approximately 50 groundwater wells in the Green 

River-Moab area, where he described both the occurrence and 

quality of water in eastern Utah bedrock aquifers. Hanshaw 

and Hill (1969) developed a potentiometric-surface map for 

the Paradox Basin from regional hydrologic interpretations 

and water-quality analysis for five aquifers ranging from Mississippian to Permian age. Regional springs were inventoried 

and characterized by Mundorff (1971) and Sumsion and Bolke 

(1972). Thackston and others (1981) described groundwater 

circulation and flow patterns throughout the western Paradox 

Basin. Rush and others (1982) assessed the regional hydrology of the Green River-Moab area northwest of the Colorado 

River in the northwestern part of the Paradox Basin as a 

potential isolation source for high-level radioactive waste. 

Rush and others (1982) used existing data and a number of 

additional field measurements to describe hydrologic flow 

systems throughout the area. Weir and others (1983) examined 

the surface water and groundwater hydrology of the medial 

part of the Paradox Basin in Grand and San Juan Counties in 

the Moab-Monticello area, focusing on the eastern flank of the 

Colorado River. Although Weir and others (1983) primarily 

used existing data, they also incorporated supplemental measurements and reconnaissance into their findings. Eisinger and 

Lowe (1999) provided a summary of groundwater resources 

and the hydrogeology of Grand County, Utah, from previously 
Geology 5

published literature. Additionally, Eisinger and Lowe (1999) 

developed a number of structural-contour maps describing the 

depth to and thickness of aquifers and fracture orientations of 

bedrock discontinuities.

Several studies have examined the hydrogeologic units 

of localized areas—in particular, the Salt Valley Anticline 

northwest of the Colorado River. These studies provide the 

results of borehole construction, monitoring, and hydrologic 

interpretation in support of the goal of potentially defining a 

high-level nuclear waste repository. Price (1959) described the 

drilling and testing of a production well in Arches National 

Park. Hite and Lohman (1973), Gard (1976), and Hite (1977) 

described Salt Valley anticlinal areas. Rush and others (1980) 

characterized hydraulic test results in three wells within the 

Salt Valley Anticline of the Paradox Basin in Grand County, 

and generated site-specific hydrogeophysical data and interpretations for the Paradox Member of the Hermosa Formation. 

Wollitz and others (1982) characterized hydraulic test results 

in six additional wells not described by Rush and others 

(1980) within the Salt Valley Anticline of the Paradox Basin in 

Grand County.

Several other studies focused specifically on the Moab 

and Spanish Valleys in the medial part of the Paradox Basin, 

southeast of the Colorado River. Sumsion (1971) examined the 

geology and water resources of Moab and Spanish Valleys and 

surrounding areas, providing an estimate of average annual 

water yield, quantifying the amount of groundwater available 

for beneficial use, and evaluating the effect of use on groundwater storage. Eychaner (1977) developed a digital model of 

the same area using data from Sumsion (1971) to investigate 

the effects of a proposed area of artificial recharge near what is 

now Ken’s Lake, and increased well withdrawals for irrigation. Blanchard (1990) provided a reconnaissance of groundwater conditions in the bedrock aquifers of Grand County and 

parts of San Juan County, with emphasis on bedrock aquifers 

in the Mill Creek-Spanish Valley area. Steiger and Susong 

(1997) presented a map of recharge areas and groundwaterquality data for the Spanish Valley area. Kovacs (2000) 

developed a numerical groundwater-flow model to investigate 

the effects of increased well withdrawals in an unincorporated 

area of Moab and Spanish Valleys at the request of the Grand 

Water and Sewer Service Agency. Gardner (2004) investigated 

the hydrogeology and groundwater conditions within the Scott 

M. Matheson Wetlands Preserve, located between Moab and 

the Colorado River, using a suite of environmental tracers to 

characterize the valley-fill aquifer at the downgradient part 

of Moab Valley. Lowe and others (2007) summarized the 

geology, groundwater conditions, and groundwater quality in 

Moab and Spanish Valleys in order to determine the potential effects of projected increases in septic-tank systems on 

water quality in the valley-fill aquifer, including modifying 

the numerical groundwater-flow model developed by Kovacs 

(2000).

Geology

The geologic setting and history of the study area is preserved in rocks and geologic structures that span more than 1 

billion years (Geldon, 2003). Rocks and sediments exposed in 

the study area are Paleozoic to Quaternary in age; Mesozoicage sedimentary rocks, however, dominate the study area. 

Archean- and Proterozoic-age granitic and metamorphic rocks 

underlie the study area (Geldon, 2003).

During Cambrian through Early Mississippian time, the 

entire Colorado Plateau received only thin marine sediments 

as a result of occasional advancements of the Cordilleran seas 

to the west (Hanshaw and Hill, 1969) including the Leadville 

Limestone and equivalents, the Ouray Limestone, the Elbert 

Formation Limestones, and the Lynch Dolomite (Geldon, 

2003). These sedimentary rocks consisting of limestone, 

fine-grained clastics, and interbedded evaporites have been 

observed (Jobin, 1962), although minimal exposures have 

been discussed in previous studies. Some of the sandstone layers (such as the McCracken Sandstone Member of the Elbert 

Formation), mixed with limestone and dolomitic layers, have 

been penetrated by oil wells in southeastern Utah (Wengerd, 

1955). From Late Mississippian through the Pennsylvanian 

and into the Early Permian, the crustal stability of the region 

ended with the Ancestral Rockies orogeny (Hanshaw and Hill, 

1969). The Ancestral Rocky Mountains formed and compressive tectonic forces caused uplifts and downwarps throughout 

the Colorado Plateau (Hanshaw and Hill, 1969). Adjacent to 

the uplift, a large north-south basin (Paradox Basin) developed 

throughout the Pennsylvanian and continued to subside and 

receive the thick evaporitic deposits of the Hermosa Formation (Hanshaw and Hill, 1969). As subsidence decreased, 

thick Permian shales and sandstones from the eastern uplift 

spread across the basin. The deposits are interfingered with 

sandstones derived from the west, and a few Permian limestone beds occur in the central and western part of the Paradox Basin (Hanshaw and Hill, 1969). Late Permian age units 

include the extensive Cutler Formation—an assemblage of red 

to white-bedded, interbedded mudstone, siltstone, sandstone, 

and conglomerates that includes the White Rim and Cedar 

Mesa Sandstones (Rush and others, 1982).

The Triassic Period sediments are characterized by classic 

red-bed deposits. Present-day salt anticlines began to develop 

during the Triassic (Hanshaw and Hill, 1969). The basal unit 

of Triassic age is the Moenkopi Formation, which is composed of shaly siltstones and sandstones that locally contain 

gypsum beds representative of a marginal marine environment 

(Eisinger and Lowe, 1999). A persistent unconformity exists, 

separating the Middle and Lower Triassic Moenkopi Formation from the Upper Triassic Chinle Formation (Freethey and 

Cordy, 1991). The Chinle Formation is a widespread, thin, 

poorly-sorted stratum of sandstone, siltstone, limestone, and 

conglomeratic sandstone representative of flood-plain and 

fluvial environments (Freethey and Cordy, 1991; Eisinger and 

Lowe, 1999).
6 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Upper Triassic and Lower Jurassic deposits consist predominantly of eolian sandstones and fluvio-lacustrine sandstones and shale (Hanshaw and Hill, 1969) represented by the 

Glen Canyon Group, the San Rafael Group, the Summerville 

Formation, and the Morrison Formation. The basal formation of the Glen Canyon Group is the Late Triassic- or Early 

Jurassic-age Wingate sandstone that extends over most of 

the Colorado Plateau. This predominantly eolian sandstone 

is highly cross-bedded and relatively well sorted (Baker and 

others, 1936). Overlying the Wingate Sandstone within the 

Glen Canyon Group is the Late Triassic- to Early Jurassic-age 

Kayenta Formation, predominantly composed of relatively 

uniform grain size from lenticular channel sandstone, siltstone, 

and mudstone deposition (Rush and others, 1982). The uppermost member of the Glen Canyon Group is the Early Jurassic 

age, thick eolian Navajo Sandstone, which extends over much 

of southeastern Utah (Jobin, 1962).

Because of a substantial unconformity, the Middle Jurassic age San Rafael Group overlies the Navajo Sandstone. The 

basal Carmel Formation of the San Rafael Group consists of 

silty sandstones and sometimes is classified as the Dewey 

Bridge Member of either the Carmel Formation (Lowe and 

others, 2007) or the Entrada Sandstone (Rush and others, 

1982; Freethey and Cordy, 1991). Overlying the Dewey 

Bridge Member is the orange-to-white, cross-bedded, finegrained Slick Rock Member of the Entrada Sandstone, followed by the white, cross-bedded, fine-grained Moab Member 

of the Curtis Formation (Rush and others, 1982). The Summerville Formation and the Tidwell Member of the Morrison 

Formation consist of siltstone, interbedded sandstone, and 

minor chert (Lowe and others, 2007). The Late Jurassic Morrison Formation also includes the Salt Wash Member, which 

consists of lenticular sandstones and mudstones with thin 

limestone laminates (Rush and others, 1982), and the Brushy 

Basin Member, a variegated mudstone of bentonite origin, 

with siltstone, sandstone, and conglomerate (Rush and others, 

1982).

The Cretaceous Period was a time of thick marine shale 

deposition, although non-marine sandstone is present at both 

the beginning and the end of the period (Hanshaw and Hill, 

1969). Overlying the Morrison Formation is the Early Cretaceous Burro Canyon Formation, which consists of sandstone 

and conglomerate, with minor beds of mudstone (Lowe and 

others, 2007). The Burro Canyon Formation and the Dakota 

Sandstone are separated by the Upper and Lower Cretaceous 

Unconformity (Freethey and Cordy, 1991). The Dakota Sandstone consists of inter-bedded sandstone and conglomerate 

with mudstone, carbonaceous shale, coal, and claystone (Lowe 

and others, 2007). Overlying the Dakota Sandstone is the 

Mancos Shale, a fissile, marine-derived, dark-gray shale (Rush 

and others, 1982). The Mancos Shale is gradational with and 

laterally interfingers the overlying Mesaverde Group, which 

consists of sandstones with thin coal seams and shale (Rush 

and others, 1982).

Tertiary sediments in the study area are predominantly 

fluvial or lacustrine, depending on the geographic location; 

many of the Tertiary sediments, however, are absent because 

of erosive features (Hanshaw and Hill, 1969). Between the 

Cretaceous and Tertiary Periods, the Laramide orogeny caused 

extensive folding and faulting, creating many of the regional 

tectonic features (Hanshaw and Hill, 1969). As Pennsylvanian-age salt layers were buried beneath younger Mesozoic 

and Tertiary sedimentary deposits, the increase in overlying 

pressure caused plastic salt deformation and the evaporites 

deformed into a series of alternating northwest-trending, saltcored anticlines and depositional synclines (Blanchard, 1990). 

As subsequent uplift and erosion of the Colorado Plateau continued through the Tertiary Period, this allowed surface water 

and groundwater to come into contact with, and dissolve, the 

salt layers from the core of the anticlines (Doelling and others, 

2002; Gutierrez, 2004; Lowe and others, 2007). The overlying rock strata collapsed as the dissolved salt was removed by 

groundwater. Paradox Valley and Moab-Spanish Valley represent two of these collapsed salt anticline features. The collapse 

occurred along high-angle normal faults along the margins 

of the valley; one such example is the Moab Fault, which has 

a maximum offset of about 1,000 ft, and an average offset 

of about 650 ft (Lowe and others, 2007). During the Tertiary 

Period, the La Sal and Abajo Mountains also were formed as 

intrusive igneous rocks that were injected through and into 

the surrounding older deposits, causing uplift and doming of 

the strata along the flanks of the mountains (Sumsion, 1971; 

Stokes, 1986; Blanchard, 1990).

Quaternary-age deposits typically are deposited as thin 

layers over bedrock and along stream channels, or as thicker 

valley fill in the collapsed salt-anticline depressions (Sumsion, 

1971; Eisinger and Lowe, 1999). The unconsolidated sediments consist of alluvial stream, alluvial fan, mass-movement 

(including glacial till), and eolian-sand deposits (Steiger and 

Susong, 1997; Lowe and others, 2007), and are discontinuous 

and scattered throughout the study area.

Hydrogeologic Characterization

Based on studies by Rush and others (1982), Weir and 

others (1983), Freethey and Cordy (1991), Geldon (2003), 

and Lowe and others (2007), eight principal aquifers and six 

confining units were identified in the study area (table 1). Generally, the aquifers can be split into four types: (1) limestone 

aquifers of marine origin, (2) sandstone aquifers of eolian 

and marine origin, (3) sandstone and conglomerate aquifers 

of fluvial origin, and (4) valley-fill aquifers in unconsolidated 

deposits. The permeability is a function of both the primary 

permeability from interstitial pore connectivity and secondary 

permeability created by karst features or faults and fractures. 

Vertical hydraulic connection generally is restricted to strongly 

folded and fractured zones, which are concentrated along 

steeply dipping monoclines and in narrow regions encompassing igneous and salt intrusive masses (Jobin, 1962). Several studies (Rush and others, 1982; Weir and others, 1983; 
Hydrogeologic Characterization 7

Table 1. Principal aquifers and confining units within the study area, Utah and Colorado. 

[Abbreviations: ft, feet; ft2/d, squared feet per day; NR, not reported; <, less than] 

Erathem System or series Hydrogeologic unit Thickness

(ft)

Reported transmissivity range 

(ft2/d)

Upper aquifer system

Cenozoic

Unconsolidated aquifers

Quarternary Unconsolidated deposits Range unknown 197–72,7501,2

Mesozoic

Mesaverde aquifer

Tertiary Wasatch Formation 0–1,6003 NR

Upper Cretaceous Mesaverde Group 0–3,0004 < 504

Mancos confining unit

Upper Cretaceous Mancos Shale 0–4,0004 NR

Dakota aquifer

Upper Cretaceous Dakota Sandstone

0–3004 10–1504,5

Lower Cretaceous Burro Canyon Formation

Brushy Basin confining unit

Upper Jurassic Brushy Basin Member of the Morrison Formation 0–4004 NR

Morrison aquifer

Upper Jurassic Salt Wash Member of the Morrison Formation 0–4004 20–554,5

Tidwell-Summerville confining unit

Middle Jurassic Tidwell Member of the Morrison Formation

0–4004 NR

Middle Jurassic Summerville Formation

Entrada aquifer

Middle Jurassic Moab Member of the Curtis Formation

0–4004 < 50–5004,5

Middle Jurassic Slick Rock Member of the Entrada Sandstone

Dewey Bridge confining unit

Middle Jurassic Dewey Bridge Member of the Carmel Formation/Entrada Sandstone 0–1504 NR

Glen Canyon Group aquifer

Lower Jurassic-Upper Triassic Navajo Sandstone

0–1,0004

0–6,0001,5,6

Lower Jurassic-Upper Triassic Kayenta Formation 20–555,6

Lower Jurassic-Upper Triassic Wingate Sandstone 40–1505,6

Lower Mesozoic confining unit

Upper Trassic Chinle Formation

0–1,0007 NR

Middle-Lower Triassic Moenkopi Formation

Paleozoic

Cutler Formation aquifer

Permian White Rim Sandstone 0–4007 0.01–6,0007

Permian Cedar Mesa Sandstone

0–10,0007 0.0005–10,0007

Middle Pennsylvanian Honaker Trail Member of the Hermosa Formation

Upper Paleozoic confining unit

Middle Pennsylvanian Paradox Member of the Hermosa Formation 0–6,0007

0.001–507

Middle-Lower Pennsylvanian Pinkerton Trail Member of the Hermosa Formation and Molas Formation 0–2007

Lower aquifer

system

Lower Paleozoic aquifer system

Mississippian Leadville Limestone and equivalents, specifically the Redwall Limestone

0–1,8007 0.008–47,0007

Devonian Ouray Limestone

Devonian Elbert Formation Limestone and McCraken Sandstone Member of the 

Elbert Formation

Cambrian Lynch Dolomite

1

Sumsion, 1971. 2Lowe and others, 2007. 3Eisinger and Lowe, 1999. 4Freethey and Cordy, 1991. 5Jobin, 1962. 6Blanchard, 1990. 7Geldon, 2003.
8 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Blanchard, 1990; Eisinger and Lowe, 1999) have identified 

both an upper and lower aquifer system separated by the 

Pennsylvanian age Paradox Member of the Hermosa Formation, an evaporite that is considered to be a confining unit. 

The principal aquifers and confining units have varied in their 

aggregated classification between studies and are not considered laterally or vertically homogeneous. Additionally, aquifer 

information throughout the study area is not equally available 

or explicitly characterized for all geologic units (Eisinger and 

Lowe, 1999).

Unconsolidated Aquifers

The unconsolidated aquifers consist of unconsolidated 

Quaternary-age deposits and typically are deposited as a thin 

layer over bedrock or as valley fill in the structural collapsed 

salt-anticline depressions (Sumsion, 1971; Eisinger and 

Lowe, 1999). The unconsolidated sediments are composed of 

stream, alluvial fan, mass-movement (including glacial till), 

and eolian-sand deposits (Steiger and Susong, 1997; Lowe 

and others, 2007), and are scattered throughout the study 

area. These unconsolidated deposits generally are composed 

of interbedded and lenticular deposits of sand, silt, and clay, 

with a wide range in physical and hydrologic characteristics 

(Eisinger and Lowe, 1999). Outside of the Moab-Spanish Valley and Castle Valley structural anticlines, little information on 

unconsolidated deposit thicknesses is available (Eisinger and 

Lowe, 1999). In Moab-Spanish Valley, the average saturated 

thickness of the unconsolidated aquifer is 70 ft, with a maximum thickness of about 300 ft (Sumsion, 1971; Lowe and 

others, 2007).

The valley-fill unconsolidated aquifers in Moab-Spanish 

and Castle Valleys are classified as low to highly transmissive 

(Lowe and others, 2007). Sumsion (1971) evaluated water 

yield and transmissivity for more than 200 wells ranging in 

depth from 30 to 300 ft throughout Moab-Spanish Valley. 

Well yields ranged from 8 to 1,000 gal/min, and transmissivities ranged from 1,600 to 13,900 ft2

/d, with an average of 

6,000 ft2/d (Sumsion, 1971). Based on the results of pumping 

tests in valley fill in other areas of Utah, however, Sumsion 

(1971) believed that a more realistic average value for the 

transmissivity of the unconsolidated aquifer in Moab-Spanish 

Valley was about 10,000 ft2/d. Lowe and others (2007) estimated transmissivities from 32 wells, including those estimated by Sumsion (1971), to range from 197 to 72,750 ft2

/d, 

with an average transmissivity of 6,956 ft2/d. Because there 

are no continuous layers of low-permeability materials within 

the valley-fill deposits, the unconsolidated aquifer in MoabSpanish Valley is considered unconfined throughout most of 

the valley (Sumsion, 1971) and is likely in direct hydraulic 

connection with the underlying Glen Canyon Group aquifer. 

Transmissivities and other aquifer characteristics likely are 

similar in other unconsolidated aquifers throughout the area.

The primary source of recharge to the unconsolidated aquifer in Moab-Spanish Valley occurs as subsurface inflow from 

the Glen Canyon Group aquifer along the northeastern side 

of the valley from groundwater that is sourced in the La Sal 

Mountains (Sumsion, 1971). Lesser amounts of recharge to 

the unconsolidated aquifer occur as infiltration of precipitation 

that falls directly on the valley-fill deposits or from seepage 

from Ken’s Lake and Pack Creek (Sumsion, 1971; Eychaner, 

1977; Steiger and Susong, 1997). For Castle Valley, most of 

the recharge to the unconsolidated aquifer is from seepage 

from Castle and Placer Creeks, which originate in the La Sal 

Mountains. Lesser amounts of recharge are from infiltration 

of precipitation that falls directly on the valley-fill deposits, 

as seepage of irrigation water, or as inflow from the Cutler 

Formation aquifer along the southwestern side of the valley 

(Snyder, 1996). Discharge from the unconsolidated aquifer 

in Moab-Spanish Valley is to springs and wells, as seepage to 

reaches of Mill and Pack Creeks, as evapotranspiration in the 

Scott M. Matheson Wetlands Preserve, and as seepage to the 

Colorado River (Sumsion, 1971; Blanchard, 1990). Discharge 

from the unconsolidated aquifer in Castle Valley occurs to 

wells, evapotranspiration, as seepage to lower Castle Creek, 

and as seepage to the Colorado River (Snyder, 1996). In 

both valleys, groundwater flow generally is to the northwest 

towards the Colorado River.

The unconsolidated aquifers are an important groundwater source for the relatively populous areas of Moab-Spanish 

Valley and Castle Valley within Grand County (Eisinger and 

Lowe, 1999). Groundwater from these deposits is used primarily for irrigation, with lesser amounts allocated to domestic 

water supply (Steiger and Susong, 1997).

Mesaverde Aquifer

The Mesaverde aquifer consists of units of the Upper Cretaceous Mesaverde Group and the Tertiary Wasatch Formation, 

which form the Book Cliffs in the northern part of the study 

area (Freethey and Cordy, 1991; Eisinger and Lowe, 1999). 

The Mesaverde Group is composed of sandstones and mudstones interbedded with shale and coal beds, and the Wasatch 

Formation is composed of deposits ranging from coarse conglomerate to fine sandstone with shale and mudstone (Rush 

and others, 1982; Eisinger and Lowe, 1999). The Mesaverde 

Group ranges in thickness from 0 to 3,000 ft within the study 

area (Freethey and Cordy, 1991). The Wasatch Formation 

ranges in thickness from 0 to 1,600 ft within the study area 

(Eisinger and Lowe, 1999). The Mesaverde aquifer crops 

out extensively along its southern terminus in central Grand 

County, Utah, between the Green and Colorado Rivers to the 

north of the Interstate-70 corridor (Freethey and Cordy, 1991; 

Hintze and others, 2000; Stoeser and others, 2005).

The Mesaverde aquifer is classified as having low permeability. Freethey and Cordy (1991) estimated transmissivities of the Mesaverde Group of less than 50 ft2

/d. Although 

Freethey and Cordy (1991) classify the Mesaverde Group as 

an aquifer, Blanchard (1990) and Eisinger and Lowe (1999) 

classify it as a confining unit. Transmissivities of the Wasatch 
Hydrogeologic Characterization 9

Formation in this area have not been reported; however, it 

generally is reported as having low permeability (Eisinger and 

Lowe, 1999).

Recharge to the Mesaverde aquifer is likely from the 

infiltration of precipitation on local outcrops. Discharge from 

the aquifer occurs to evapotranspiration, and to springs and 

seeps. Discharge from seeps and springs located north of the 

Book Cliffs typically ranges from less than 1 to 20 gal/min 

(Blanchard, 1990).

Potentiometric contours for the Mesaverde aquifer indicate 

groundwater flow through the aquifer within the study area 

generally is to the southwest from the Book Cliffs towards the 

Green and Colorado Rivers (Freethey and Cordy, 1991).

Mancos Confining Unit

The Mancos confining unit consists of the Upper Cretaceous Mancos Shale, a marine-derived shale, mudstone, and 

claystone (Freethey and Cordy, 1991). Both the lower and 

upper contacts of the Mancos Shale are gradational and interfingering with the Dakota aquifer below and the Mesaverde 

Group above (Freethey and Cordy, 1991; Lowe and others, 

2007). The Mancos confining unit ranges in thickness from 0 

to 4,000 ft within the study area, and thickness increases from 

south to north (Freethey and Cordy, 1991). The Mancos confining unit crops out extensively along its southern terminus in 

central Grand County, Utah, between the Green and Colorado 

Rivers along the Interstate-70 corridor (Freethey and Cordy, 

1991; Hintze and others, 2000; Stoeser and others, 2005). The 

Mancos confining unit is considered to have very low permeability and is a barrier to both horizontal and vertical groundwater movement (Freethey and Cordy, 1991; Lowe and others, 

2007); however, there are no reported values of transmissivity 

or hydraulic conductivity for the unit.

Dakota Aquifer

The Dakota aquifer consists of the Cretaceous Burro Canyon Formation overlain by the Dakota Sandstone. The Burro 

Canyon Formation is composed of sandstone and conglomerate, interbedded with mudstone (Lowe and others, 2007). The 

Dakota Sandstone is composed of sandstone and conglomerate, interbedded with mudstone, carbonaceous shale, coal, and 

claystone (Lowe and others, 2007). The Dakota aquifer ranges 

in thickness from 0 to 300 ft within the study area, and thickness generally increases from east to west and west to east 

towards western Grand County, Utah (Freethey and Cordy, 

1991). The Dakota aquifer crops out along its southern terminus through central Grand County, Utah, and along the flanks 

of the La Sal and Abajo Mountains and the Uncompahgre 

Plateau (Freethey and Cordy, 1991; Hintze and others, 2000; 

Stoeser and others, 2005).

The Dakota aquifer is classified as low to moderately 

transmissive, except where faulted or fractured and the 

transmissivity is increased (Lowe and others, 2007). Jobin 

(1962) estimated transmissivities ranging from 55 to 150 

ft2/d, although Freethey and Cordy (1991) estimated slightly 

decreased transmissivities ranging from 10 to 50 ft2/d.

Recharge to the Dakota aquifer is likely from the infiltration of precipitation on local outcrops. Discharge from 

the aquifer occurs to evapotranspiration, springs, and flowing wells that typically discharge at less than 1 gal/min 

(Blanchard, 1990). Seeps and springs along the flanks of the 

La Sal Mountains show large variations in discharge rates that 

can average as much as 18 gal/min (Weir and others, 1983). 

Discharge to the underlying Morrison aquifer also may occur 

in areas where the Brushy Basin confining unit is not present 

between the Dakota and Morrison aquifers.

Potentiometric contours for the Dakota aquifer indicate 

that groundwater flow through the aquifer within the study 

area generally is to the west-southwest from north-central 

Grand County, Utah, towards the Colorado River (Freethey 

and Cordy, 1991). Because the Dakota aquifer is not contiguous east of the Colorado River, groundwater-flow directions 

are not well defined but likely are towards localized discharge 

areas.

Brushy Basin Confining Unit

The Brushy Basin confining unit separates the Morison and 

Dakota aquifers, and consists of the Brushy Basin Member of 

the Morrison Formation, a variegated bentonitic mudstone, 

claystone, and siltstone with discontinuous lenses of conglomerate and sandstone (Freethey and Cordy, 1991; Lowe 

and others, 2007). The Brushy Basin confining unit ranges in 

thickness from 0 to 400 ft within the study area, and thickness increases from north to south and east to west (Freethey 

and Cordy, 1991). The Brushy Basin confining unit crops out 

locally along its southern terminus in central Grand County, 

Utah, and along the flanks of the La Sal and Abajo Mountains and the Uncompahgre Plateau (Freethey and Cordy, 

1991; Hintze and others, 2000; Stoeser and others, 2005). The 

Brushy Basin confining unit is considered to have very low 

permeability, and is a barrier to groundwater movement (Lowe 

and others, 2007); however, there are no reported values of 

transmissivity or hydraulic conductivity for the unit.

Morrison Aquifer

The Upper Jurassic Morrison aquifer consists of the Salt 

Wash Member of the Morrison Formation. The Salt Wash 

Member is a well-sorted, fine- to medium-grained, fluvial 

cross-bedded sandstone, with occasional conglomeratic 

sandstone interbedded with mudstone (Sumsion, 1971; Lowe 

and others, 2007). The Morrison aquifer ranges in thickness from 0 to 400 ft within the study area, and thickness 

generally increases from northeast to southwest (Freethey 

and Cordy, 1991). The Morrison aquifer crops out along its 

southern terminus through central Grand County, Utah, and 

along the flanks of the La Sal and Abajo Mountains and the 
10 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Uncompahgre Plateau (Freethey and Cordy, 1991; Hintze and 

others, 2000; Stoeser and others, 2005).

The Morrison aquifer is classified as having a relatively low 

transmissivity. Jobin (1962) estimated transmissivities ranging 

from 20 to 55 ft2/d, and Freethey and Cordy (1991) estimated 

transmissivities of less than 50 ft2/d.

Recharge to the Morrison aquifer is likely from infiltration from precipitation that falls locally on areas where the 

aquifer crops out, where there is no intervening confining unit 

between overlying aquifers and the Morrison aquifer, or where 

the aquifer is mantled by unconsolidated deposits (Blanchard, 

1990; Freethey and Cordy, 1991). Discharge from the aquifer 

occurs to evapotranspiration, and seeps, springs, and flowing wells that typically discharge at less than 1 gal/min and 

are slightly saline (Blanchard, 1990; Lowe and others, 2007). 

Additionally, the Morrison Formation contains large quantities 

of uranium, and the groundwater can contain high concentrations of radionuclides (Blanchard, 1990). Discharge also may 

occur to the underlying Entrada aquifer in areas where the 

Tidwell-Summerville confining unit is not present between the 

Morrison and Entrada aquifers.

Potentiometric contours for the Morrison aquifer indicate 

that groundwater flow through the aquifer within the study 

area generally is to the south from the Book Cliffs towards 

the Colorado River (Freethey and Cordy, 1991). Because the 

Morrison aquifer is not contiguous east of the Colorado River, 

groundwater-flow directions are not well defined but are likely 

towards localized discharge areas.

Tidwell-Summerville Confining Unit

The Tidwell-Summerville confining unit consists of the 

Middle Jurassic-age Summerville Formation and the Tidwell 

Member of the Morrison Formation (Rush and others, 1982; 

Lowe and others, 2007), and separates the Entrada and Morrison aquifers. The units are composed of shale and siltstone 

interbedded with sandstone and chert (Eisinger and Lowe, 

1999; Lowe and others, 2007). The Tidwell-Summerville 

confining unit ranges in thickness from 0 to 400 ft within the 

study area and is present in two areas (1) across the northwestern part of Grand County, Utah, where thickness increases 

from east to west; and (2) across the eastern part of the study 

area, where thickness increases from west to east (Freethey 

and Cordy, 1991). The unit is missing through the central part 

of the study area near the Colorado River (Freethey and Cordy, 

1991). The Tidwell-Summerville confining unit crops out 

locally along its southern terminus in western Grand County, 

Utah, and along the flanks of the La Sal and Abajo Mountains and the Uncompahgre Plateau (Freethey and Cordy, 

1991; Hintze and others, 2000; Stoeser and others, 2005). The 

Tidwell-Summerville confining unit is considered to have 

very low permeability and is a barrier to vertical groundwater 

movement (Lowe and others, 2007); however, there are no 

reported values of transmissivity or hydraulic conductivity for 

the unit.

Entrada Aquifer

The Middle Jurassic-age Entrada aquifer, sometimes 

referred to as the San Rafael Group, consists of the Slick Rock 

Member of the Entrada Sandstone and the Moab Member of 

the Curtis Formation (Rush and others, 1982; Lowe and others, 2007). The Slick Rock Member of the Entrada Sandstone 

is a well-sorted, very fine- to medium-grained, cross-bedded 

sandstone of eolian or possibly shallow marine origin (Lowe 

and others, 2007). The Moab Member of the Curtis Formation is a well-sorted, medium- to fine-grained, cross-bedded, 

eolian sandstone (Lowe and others, 2007). The Entrada aquifer 

ranges in thickness from 0 to 400 ft within the study area, 

and thickness generally increases from northeast to southwest 

(Freethey and Cordy, 1991). The Entrada aquifer crops out 

along its southern terminus through central Grand County, 

Utah, and along the flanks of the La Sal Mountains and 

Uncompahgre Plateau (Freethey and Cordy, 1991; Hintze and 

others, 2000; Stoeser and others, 2005).

Both units of the Entrada aquifer are classified as being 

moderately transmissive. Jobin (1962) and Blanchard (1990) 

estimated transmissivities ranging from 50 to about 150 ft2/d 

in the central part of the study area. Freethey and Cordy 

(1991) estimated transmissivities ranging from less than 50 to 

500 ft2/d for the aquifer within the study area.

Recharge to the Entrada aquifer likely is from infiltration of 

precipitation that falls locally on areas where the aquifer crops 

out, where there is no intervening confining unit between 

overlying aquifers and the Entrada aquifer, or where the aquifer is mantled by unconsolidated deposits (Blanchard, 1990; 

Freethey and Cordy, 1991). Discharge from the aquifer occurs 

to evapotranspiration, numerous seeps and springs, and wells. 

The Dewey Bridge Member of the Carmel Formation, which 

underlies the Entrada aquifer, commonly acts as a confining 

unit and, therefore, discharge from the aquifer commonly 

occurs as seeps and springs at the lower contact with the finergrained Dewey Bridge Member of the Carmel Formation or at 

contacts between cross-bed sets where the vertical hydraulic 

conductivity is decreased (Blanchard, 1990). Discharge also 

may occur to the underlying Glen Canyon Group aquifer in 

areas where the Dewey Bridge Member of the Carmel Formation is not present between the Entrada aquifer and the Glen 

Canyon Group aquifer, such as in the eastern and southern 

parts of the study area (Freethey and Cordy, 1991). Blanchard 

(1990) inventoried several springs and seeps and one flowing well in the Entrada Aquifer; the springs and seeps yielded 

discharges of 0.1 to 11.1 gal/min, and discharge from the well 

was about 15 gal/min.

Potentiometric contours from the Entrada aquifer (Freethey 

and Cordy, 1991) indicate groundwater flow through the aquifer within the study area generally is to the south and southwest from the Book Cliffs towards the Colorado and Green 

Rivers. Because the Entrada aquifer is not contiguous east of 

the Colorado River, groundwater-flow directions are not well 

defined but are likely towards localized discharge areas.
Hydrogeologic Characterization 11

Dewey Bridge Confining Unit

The Dewey Bridge confining unit consists of the Dewey 

Bridge Member of the Carmel Formation/Entrada Sandstone 

(Rush and others, 1982; Lowe and others, 2007), and separates 

the Glen Canyon Group and Entrada aquifers. The Dewey 

Bridge Member is composed of sandstone and siltstone with 

contorted bedding (Rush and others, 1982). The Dewey Bridge 

confining unit only occurs across the north and northwest parts 

of Grand County, Utah, where it ranges in thickness from 0 to 

150 ft, with thickness increasing from east to west (Freethey 

and Cordy, 1991). The Dewey Bridge confining unit crops out 

locally along the Green River in northwestern Grand County, 

Utah (Freethey and Cordy, 1991). The Dewey Bridge confining unit is considered to have very low permeability and is a 

barrier to vertical groundwater movement (Blanchard, 1990; 

Lowe and others, 2007); however, there are no reported values 

of transmissivity or hydraulic conductivity for the unit.

Glen Canyon Group Aquifer

The Glen Canyon Group aquifer consists of the Lower 

Jurassic- to Upper Triassic-age Wingate Sandstone, Kayenta 

Formation, and Navajo Sandstone (Rush and others, 1982; 

Blanchard, 1990; Freethey and Cordy, 1991; Lowe and others, 2007). The Wingate Sandstone is a well-sorted, very 

fine- to medium-grained, calcareous, massively bedded, wellcemented, cross-bedded, eolian sandstone (Sumsion, 1971; 

Lowe and others, 2007). The Wingate Sandstone typically is 

observed as abrupt, high, desert-varnished cliff outcrops in 

the southern half of Grand County (Eisinger and Lowe, 1999). 

The Kayenta Formation is a very fine- to coarse-grained, 

locally conglomeratic, fluvial sandstone, siltstone, and shale 

(Sumsion, 1971; Lowe and others, 2007). The Navajo Sandstone is a well-rounded, well-sorted, fine- to medium-grained, 

cross-bedded eolian sandstone (Sumsion, 1971; Lowe and others, 2007). The Navajo Sandstone is weakly cemented silica or 

calcium carbonates and contains thin lenticular beds of sandy 

limestone (Sumsion, 1971). The Navajo sandstone outcrops 

are extensively observed throughout the study area as cliffs 

and domes (Sumsion, 1971). The Glen Canyon Group aquifer 

ranges in thickness from 0 to 1,000 ft within the study area, 

and thickness generally increases from south to north and east 

to west (Freethey and Cordy, 1991). The Glen Canyon Group 

aquifer crops out extensively to the north, northeast, east, and 

southeast of the confluence of the Green and Colorado Rivers 

(Freethey and Cordy, 1991; Hintze and others, 2000; Stoeser 

and others, 2005).

All three units in the Glen Canyon Group aquifer are 

classified as being moderately transmissive, which is further enhanced where fractures exist. Transmissivities of the 

aquifer range from less than 50 to 6,000 ft2/d (Sumsion, 1971; 

Freethey and Cordy, 1991). Because the Kayenta Formation 

has many seams of interbedded silt and clay and large amounts 

of cementing material that reduce the transmissive properties 

of the unit, it functions as a confining unit in some areas of 

the Colorado Plateau (Freethey and Cordy, 1991). The lithology and fracturing of the Kayenta Formation, however, have 

a direct influence on the hydraulic connection between the 

Navajo Sandstone and the Wingate Sandstone. For example, 

in the Mill Creek-Spanish Valley area, the Kayenta Formation is predominantly sandstone and, therefore, provides a 

direct hydraulic connection between the Navajo Sandstone and 

Wingate Sandstone (Blanchard, 1990). Transmissivities for the 

Kayenta Formation and the Wingate Sandstone were estimated 

as 20–55 ft2/d and 40–150 ft2/d, respectively (Jobin, 1962; 

Blanchard, 1990). The Wingate Sandstone was observed to 

yield moderate quantities of water where it is highly fractured 

(Sumsion, 1971). The thick, well-sorted Navajo Sandstone is 

highly permeable, and the transmissivity values are among the 

greatest in the Colorado Plateau (Jobin, 1962). Transmissivities for the Navajo Sandstone were estimated to range from 

0 ft2/d to the east, where the Navajo pinches out, to as much 

as 700 ft2/d in the thick stratum to the southwest (Jobin, 1962; 

Blanchard, 1990). Sumsion (1971) estimated transmissivities between 1,200 and 1,500 ft2

/d in areas where the Navajo 

Sandstone is relatively unfractured, and as much as 6,000 

ft2/d in areas where the Navajo Sandstone is highly fractured 

from wells near Moab. These transmissivities for the Navajo 

Sandstone are similar to more recently reported transmissivities from aquifer tests in other areas of the Navajo Sandstone 

(Heilweil and others, 2000).

Recharge to the Glen Canyon Group aquifer primarily 

occurs as infiltration from precipitation, mainly in the form 

of snow, in the upland areas (Blanchard, 1990; Freethey and 

Cordy, 1991; Steiger and Susong, 1997). Recharge to the 

aquifer is enhanced in areas where the formations are covered 

by shallow deposits of eolian sand or sandy soil, where the 

formations are highly fractured, or where younger sedimentary deposits, such as the Entrada Sandstone, directly overlie 

the Navajo Sandstone without an intervening confining unit 

(Blanchard, 1990; Steiger and Susong, 1997). Recharge also 

can occur from the infiltration of surface water where perennial streams, such as Mill Creek, traverse the Navajo Sandstone (Steiger and Susong, 1997). All three units of the aquifer 

are highly faulted and fractured, especially along the flanks of 

the La Sal and Abajo Mountains and the Uncompahgre Plateau 

(Blanchard, 1990; Freethey and Cordy, 1991). Discharge from 

the aquifer occurs to numerous seeps and springs, to streams, 

to evapotranspiration, to wells, as vertical flow into overlying 

or underlying units, and as lateral flow across the study-area 

boundaries. Spring discharge from the Wingate Sandstone is 

reported as 10 to 240 gal/min in Grand County (Blanchard, 

1990). Spring discharge from the Navajo Sandstone ranges 

from less than 5 to more than 300 gal/min, and well yields 

of as much as 2,000 gal/min have been observed (Blanchard, 

1990). Because the Navajo Sandstone is the most shallow and 

permeable unit in the Glen Canyon Group, it is the source of 

water for most groundwater wells drilled in southern Grand 

County.
12 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Potentiometric contours for the Glen Canyon Group aquifer 

(Freethey and Cordy, 1991) indicate that groundwater flow 

through the aquifer within the study area generally is (1) 

towards the west from the Uncompahgre Plateau to the Dolores River; (2) towards the east, north, and west from the La Sal 

Mountains to the Dolores and Colorado Rivers; (3) towards 

the northeast and then north from the Abajo Mountains to the 

Colorado River; and (4) towards the southwest through the 

western part of Grand County, Utah, to the Green River.

Lower Mesozoic Confining Unit

The Lower Mesozoic confining unit consists of the Moenkopi Formation, a brown shale, mudstone, arkosic sandstone, 

and conglomerate, with local beds of gypsum (Rush and 

others, 1982), and the Chinle Formation, which comprises 

reddish siltstone, sandstone, mudstone, and conglomerates 

(Rush and others, 1982). The Lower Mesozoic confining unit 

separates the Cutler Formation and Glen Canyon Group aquifers. The Lower Mesozoic confining unit ranges in thickness 

from 0 to 1,000 ft in the study area, and thickness generally 

increases from south to north and east to west (Freethey and 

Cordy, 1991). The Moenkopi and Chinle Formations crop 

out locally along the Colorado and Green Rivers and other 

various washes in the study area, and more extensively in 

southeastern Mesa County, Colorado (Freethey and Cordy, 

1991; Hintze and others, 2000; Stoeser and others, 2005). The 

Lower Mesozoic confining unit is considered to have very low 

permeability and is a barrier to groundwater movement except 

where jointed, faulted, or fractured (Lowe and others, 2007); 

however, there are no reported values of transmissivity or 

hydraulic conductivity for the unit.

Cutler Formation Aquifer

The Cutler Formation aquifer consists of the Honaker Trail 

Member of the Hermosa Formation, and the Cedar Mesa and 

White Rim Sandstones of the Cutler Formation. The Middle 

Pennsylvanian-age Honaker Trail Member of the Hermosa 

Formation consists of gray, cyclically alternating limestone, 

sandstone, and shale (Baars, 2000). The Permian-age Cutler 

Formation is a thick, predominantly red arkosic sandstone and 

conglomerate interfingered with siltstone and mudstone (Rush 

and others, 1982), and is sometimes classified as a confining 

unit (Rush and others, 1982; Blanchard, 1990). Eisinger and 

Lowe (1999) and Geldon (2003), however, noted that locally 

important sections of the formation, especially the Cedar Mesa 

and White Rim Sandstones are very permeable. Jobin (1962) 

stated that, at some locations, the aquifer is known for a high 

and relatively uniform permeability, most likely caused by the 

stability and duration of the dune-forming environment. The 

Honaker Trail Member of the Hermosa Formation together 

with the Cedar Mesa Sandstone range in thickness from 0 to 

10,000 ft, with the thickest sections occurring in the center 

of the study area (Geldon, 2003). The White Rim Sandstone 

ranges in thickness from 0 to 400 ft and occurs mainly in the 

center of the study area (Geldon, 2003). The various units of 

the aquifer crop out extensively within Canyonlands National 

Park, especially in the Needles District and around the rim of 

the Island in the Sky District, and locally in other parts of the 

study area, such as along the lower parts of Indian Creek, to 

the northeast of Castle Valley, and along parts of the Dolores 

River in Colorado (Hintze and others, 2000; Stoeser and others, 2005).

The Cutler Formation aquifer transmits water through a 

variety of ways, depending on the lithology. The Cedar Mesa 

and White Rim Sandstones have intergranular and fracture 

permeability, although the Honaker Trail Member of the 

Hermosa Formation has little intergranular permeability and 

transmits water mainly through fractures and solution channels (Geldon, 2003). Transmissivities for the Honaker Trail 

Member of the Hermosa Formation together with the Cedar 

Mesa Sandstone range from 0.0005 to 10,000 ft2/d, depending 

on thickness, lithology, and development of fractures and solution channels (Geldon, 2003). Transmissivities for the White 

Rim Sandstone range from 0.01 to 6,000 ft2/d, depending on 

cementation and, to a lesser degree, on fracturing (Geldon, 

2003). Transmissivities are greatest along uplifted areas where 

secondary openings increase and cementation decreases (Geldon, 2003).

Recharge to the Cutler Formation aquifer primarily occurs 

as infiltration from precipitation in the upland areas (Geldon, 

2003). Recharge to the aquifer is enhanced in areas where the 

formations are covered by shallow deposits of eolian sand 

or sandy soil or where the formations are highly fractured 

(Geldon, 2003). Discharge from the aquifer within the study 

area occurs to numerous seeps and springs; to some reaches of 

the Dolores, Green, and Colorado Rivers; to wells; or as subsurface outflow. Discharge from outcrops of the Cedar Mesa 

and White Rim Sandstones are observed within Canyonlands 

National Park in the form of springs and seeps that generally are concentrated at the base of these units (Sumsion and 

Bolke, 1972; Huntoon, 1979). Discharge from these springs 

and seeps generally is only a few gallons per minute (Sumsion 

and Bolke, 1972; Huntoon, 1979; Eisinger and Lowe, 1999). 

Sumsion and Bolke (1972) describe three wells drilled into the 

White Rim Sandstone in the Island in the Sky District of Canyonlands National Park that had yields between 40 and 100 

gal/min and several other wells completed in the Cedar Mesa 

Sandstone located within the Needles District of Canyonlands 

National Park. Blanchard (1990) reported that undifferentiated units of the Cutler Formation were the source of water for 

about 30 groundwater wells on the southwestern side of Castle 

Valley.

Upper Paleozoic Confining Unit

The Upper Paleozoic confining unit consists of the Molas 

Formation overlain by the Pinkerton Trail and Paradox Members of the Hermosa Formation (Rush and others, 1982; Weir 
Surface-Water Resources 13

and others, 1983; Hintze and others, 2000), and separates the 

Lower Paleozoic aquifer system from the Cutler Formation 

aquifer. The Molas Formation consists of interbedded red 

siltstone, sandstone, limestone, and shale (Rush and others, 

1982). The Pinkerton Trail Member of the Hermosa Formation consists of interbedded limestone, dolomite, shale, and 

anhydrite (Rush and others, 1982). The Paradox Member of 

the Hermosa Formation consists mostly of bedded salts (Rush 

and others, 1982). The Molas Formation and the Pinkerton 

Trail Member of the Hermosa Formation range in thickness 

from 0 to 200 ft within the study area, and thickness generally 

increases from north to south (Geldon, 2003). The Paradox 

Member of the Hermosa Formation ranges in thickness from 0 

to 6,000 ft in the study area, and thickness generally increases 

from the north, east, and west (Geldon, 2003). The Paradox 

Member of the Hermosa Formation crops out in isolated areas 

in salt valleys and along salt-dissolution deformed bedrock, 

such as Salt Valley and Castle Valley. These outcrops generally are classified as the Paradox Member caprock, which is 

the residue left after the salt is dissolved (Doelling and others, 

2002). The Paradox Member of the Hermosa Formation also 

crops out locally along the Green and Colorado Rivers near 

their confluence (Baars, 2000; Hintze and others, 2000). 

Transmissivities of the various units range from 0.001 to 

50 ft2/d and depend primarily on the lithology and the development of fractures and solution channels (Geldon, 2003).

Lower Paleozoic Aquifer System

The Lower Paleozoic aquifer system consists of the Lynch 

Dolomite overlain by the Elbert Formation Limestone and 

McCracken Sandstone Member of the Elbert Formation, the 

Ouray Limestone, and the Leadville Limestone and its equivalents, specifically the Redwall Limestone (Rush and others, 

1982; Weir and others, 1983). Thicknesses of the various units 

range from 0 to 800 ft throughout the study area, and generally 

increase from north to south and east to west throughout the 

study area (Geldon, 2003). The Lower Paleozoic aquifer system has a maximum thickness of 1,800 ft in the southernmost 

parts of the study area near the confluence of the Green and 

Colorado Rivers (Geldon, 2003). The Lower Paleozoic aquifer 

system does not crop out within the study area but it is laterally continuous to areas outside of the study area (Doelling 

and others, 2002; Doelling, 2004; Gualtieri, 2004; Witkind, 

2004; Stoeser and others, 2005).

The Lower Paleozoic aquifer system transmits water 

mostly through secondary features such as fractures, joints, 

faults, and solution channels or caverns (Hood and Danielson, 

1981; Geldon, 2003). Transmissivities of the various units 

range from 0.008 to 47,000 ft2/d and depend primarily on the 

lithology and the degree of fracturing and solution channeling 

(Geldon, 2003). The Redwall Limestone has been reported 

to have some of the greatest hydraulic-conductivity values 

in the region (Weir and others, 1983). The Lower Paleozoic 

aquifer system is an important source of groundwater in some 

locations, particularly in San Juan County (Gloyn and others, 

1995; Lowe, 1996). In most areas of Grand County, however, 

the top of the Lower Paleozoic aquifer system occurs at a 

depth between about 3,900 and 13,000 ft below land surface 

and, therefore, is too deep to provide an economically viable 

source of groundwater (Rush and others, 1982; Eisinger and 

Lowe, 1999).

Potentiometric contours (Rush and others, 1982; Weir 

and others, 1983) indicate that groundwater flow through 

the Lower Paleozoic aquifer system in the study area generally is towards the south and west. Because the Lower 

Paleozoic aquifer system does not crop out within the study 

area, recharge to the aquifer primarily is from precipitation 

on outcrops outside of the study area, which enters the study 

area as lateral subsurface inflow (Rush and others, 1982; Weir 

and others, 1983; Geldon, 2003). Regional discharge from 

the Lower Paleozoic aquifer system also occurs outside the 

study area, and has been observed as discharge to the Colorado River in Marble and Grand Canyons southwest of the 

Paradox Basin (Weir and others, 1983). Discharge from the 

Lower Paleozoic aquifer system in the study area is mainly 

to lateral subsurface outflow and well withdrawals. Although 

some water may possibly migrate upward, it is assumed that 

the evaporitic deposits that overlie the aquifer (Upper Paleozoic confining unit, discussed in section, “Upper Paleozoic 

Confining Unit”) form a relatively impermeable confining unit 

that prohibits upward flow (Rush and others, 1982; Weir and 

others, 1983).

Surface-Water Resources

Surface-water resources of the study area are dominated 

by the Colorado River. Numerous perennial and ephemeral 

or intermittent tributaries join the Colorado River as it flows 

from northeast to southwest across the study area, draining the 

surrounding upland areas of the Book Cliffs, Arches National 

Park, the La Sal Mountains, and the Abajo Mountains (fig. 

2). The Green River is the largest perennial tributary to the 

Colorado River in the study area. The Green River flows south 

into the study area, joining the Colorado River in Canyonlands 

National Park.

Perennial Streams and Rivers

The sole perennial stream to the northwest of the Colorado 

River in the study area is Salt Wash, which drains the eastern 

part of Arches National Park and surrounding areas. The Dolores River enters the Colorado River immediately northeast of 

the Moab MLP area. Numerous perennial streams are located 

to the southeast of the Colorado River between the Dolores River and the confluence of the Colorado River and the 

Green River. Several of these streams originate on the northwestern slope of the La Sal Mountains and lowland mesas, 

subsequently incising through several collapsed salt anticline 
14 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Figure 2. Location of surface-water sites within the study area reported in the National Water Information System database. COLORADO UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY

DOLORES COUNTY

SAN MIGUEL COUNTY

MONTROSE

COUNTY

Colorado River

Colorado River

Green River

Dolores River

Salt Wash

Professor Creek

Onion Creek

Castle Creek

Placer Creek

Mill Creek

Kane Springs Creek

Indian

Creek

Bitter

Creek

Westwater

Creek

Cottonwood

Wash

Nash Wash

Salt

Creek

Cottonwood

Creek

North

Hatch Wash

East Canyon Wash

Pack Creek

Salt Creek

Roc Creek

Mesa Creek

Calamity Creek

Wash

West

Creek

Sagers

Bartlett

Wash

Dry

Wash

Thompson Wash

Tenmile Wash

70

70

191

313

128

279

211

Green

River

Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book Cliffs

Uncompahgre Plateau

Castle Valley

Moab-Spanish Valley

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Island in 

the Sky

The

Needles

Mineral Canyon

Hell Roaring Canyon

Spring Canyon

Taylor Canyon

Moab Master Leasing Plan area

National Park

Study area boundary

Surface-water site reported in 

the National Water Information 

System (NWIS) database

EXPLANATION
Surface-Water Resources 15

valleys in the Castle Valley area. These streams include Onion 

Creek, Professor Creek, and Castle Creek. Farther southeast, 

Pack Creek joins with its largest tributary, Mill Creek, both of 

which originate on the western slope of the La Sal Mountains 

and flow through or adjacent to Moab-Spanish Valley, ultimately reaching the Colorado River near Moab, Utah (Sumsion, 1971). It should be noted, however, that all streamflow 

from Pack Creek upstream of the springs near Moab City Park 

is diverted for irrigation purposes throughout Moab-Spanish 

Valley (Sumsion, 1971). Kane Springs Creek and its primary 

tributaries, Hatch Wash and East Canyon Wash, flow westerly and northwesterly from the southern La Sal Mountains 

and the mesa-dominated area between the La Sal and Abajo 

Mountains. Kane Springs Creek is intermittent upstream of 

U.S. Route 191, and perennial downstream of U.S. Route 191. 

Indian Creek and Salt Creek drain the northern slope of the 

Abajo Mountains predominantly during spring and early summer periods of increased runoff (Weir and others, 1983). The 

Indian Creek headwaters are largely diverted south through 

an aqueduct to Blanding, Utah (south of the study area), and 

are used predominantly for public-water supply. The remaining Indian Creek discharge is appropriated for irrigation on 

ranches throughout the Indian Creek drainage system (Weir 

and others, 1983).

Ephemeral or Intermittent Streams 

To the east of the Green River, there are numerous ephemeral or intermittent tributaries including Dry Wash, Tenmile 

Wash, Spring Canyon, Hell Roaring Canyon, Mineral Canyon, 

and Taylor Canyon, which drain the area between U.S. Route 

191 and the Green River. To the northwest of the Colorado 

River, there are numerous ephemeral or intermittent tributaries 

including Bitter Creek, Westwater Creek, Cottonwood Wash, 

and Sagers Wash, which originate in the Book Cliffs; and Salt 

Wash, which drains the southwestern part of Arches National 

Park. Many of these drainages exhibit short segments of minor 

perennial flow, although the remainder of streamflow displays 

short-term snowmelt driven and infrequent storm-runoff 

response.

Surface-Water Data

Surface-water discharge and water-quality data were 

obtained from the USGS National Water Information System 

(NWIS) database (available at http://waterdata.usgs.gov/nwis). 

While other unpublished surface-water data may exist from 

other agencies, only USGS data are discussed in the following 

sections. 

Within the study area, there are 133 surface-water sites 

reported in NWIS (fig. 2; table 2). Although most of the sites 

are located in Utah, 36 are in western Colorado. There were 46 

sites with as many as 2,697 instantaneous discharge measurements, 41 sites with between 1 and 94 peak-flow measurements, and 99 sites with as many as 2,983 water-quality 

records. Typically, discharge is measured when water-quality 

samples are collected.

Out of the 133 surface-water sites reported in NWIS, 3 

are at the Moab Slough Pond, which is classified as a lake. 

Thirteen of the sites have only location data, with no associated discharge or water-quality data. A total of 77 surfacewater sites have between 1 and 159 instantaneous discharge 

measurements. Ten surface-water sites have only annual peak 

streamflow data. The remaining 31 surface-water sites are 

USGS streamgage sites, which have continuous streamflow 

records for varying periods of time (table 3).

Daily Streamflow Statistics

Streamflow statistics often are used to assess the long-term 

availability of surface-water resources within a study area. 

There are 31 current (2013) and historical USGS streamgages 

(table 3) located throughout the study area that have continuous data over a period of record that can be used to develop 

streamflow statistics that characterize the variability in 

surface-water resources. The streamflow statistics include the 

mean daily discharge and the maximum and minimum daily 

discharge. These values were computed from daily discharge 

data collected at each site over the entire period of record for 

that site. Individual measurements distributed throughout the 

area of interest over an extended period of time provide information on the spatial variability and temporal trends of the 

water resources. Within the study area, however, sample locations are sparse and processes affecting streamflow, such as 

altitude or geology, are highly variable. Under these circumstances, it is preferable to estimate the mean daily discharge 

over an extended period of record bounded by the measurement uncertainty, expressed as the minimum and maximum 

daily discharge.

Streams in the study area are divided into six groups. The 

groups are (1) perennial streams with maximum daily discharges of less than 10 ft3

/s, (2) perennial streams with maximum daily discharges between 10 and 100 ft3

/s, (3) ephemeral or intermittent streams with maximum daily discharges 

between 10 and 100 ft3

/s, (4) perennial streams with maximum 

daily discharges between 100.1 and 1,000 ft3/s, (5) ephemeral or intermittent streams with maximum daily discharges 

between 100.1 and 1,000 ft3/s, and (6) perennial streams with 

maximum daily discharges greater than 10,000 ft3/s. The distribution of streamgage locations for each group classification 

is presented in figure 3.

Most streamgages are located east of the Colorado River 

between the Dolores River and Mill Creek tributaries (fig. 3). 

Streams are classified based on the mean daily discharge 

measured at a streamgage as either perennial or ephemeral/

intermittent. This classification, however, may vary both along 

the reach and throughout the year. To show the variation in 

daily discharge statistics over the period of record, two representative stream hydrographs for each of the six groups are 

provided in figure 4.
16 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Discharge data? (Y/N) Field parameters (temperature, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace metals? (Y/N) Link to NWIS website USGS 09163530 Colorado River below Colorado-Utah state line 39.08831747 -109.1009454 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_ no=09163530&agency_cd=USGS&

USGS 09163570 Hay Press C ab Fruita Res #3, nr Glade Park, CO. 38.8508166 -108.7828793 8,990

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_ no=09163570&agency_cd=USGS&

USGS 09163675 Cottonwood Wash at I-70, near Cisco, Utah 39.08165184 -109.2176153 NR

Y

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09163675&agency_cd=USGS&

USGS 09179000 Roc Creek near Uranium, CO. 38.435266 -108.922883 5,200

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09179000&agency_cd=USGS&

USGS 09179200 Salt Creek near Gateway, CO 38.5330428 -108.9709404 5,220

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=09179200&agency_cd=USGS&

USGS 09179500 Dolores River at Gateway, CO. 38.6813734 -108.9803867 4,548

Y

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09179500&agency_cd=USGS&

USGS 09180000 Dolores River near Cisco, UT 38.79720805 -109.1951142 4,165

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=09180000&agency_cd=USGS&

USGS 09180500 Colorado River near Cisco, UT 38.81054095 -109.2934493 4,090

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=09180500&agency_cd=USGS&

USGS 09180920 Onion Creek above Onion C bridge nr Moab, UT 38.69693046 -109.2551154 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=09180920&agency_cd=USGS&

USGS 09180970 Onion Creek below Onion Crk bridge nr Moab, UT 38.70637365 -109.3151161 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=09180970&agency_cd=USGS&

USGS 09181000 Onion Creek near Moab, Utah 38.724984 -109.345117 4,120

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09181000&agency_cd=USGS&

USGS 09181500 Professor Creek near Moab, UT 38.72915 -109.375672 4,070

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09181500&agency_cd=USGS&

USGS 09182000 Castle Creek above diversions, near Moab, Utah 38.5927639 -109.2656708 7,070

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09182000&agency_cd=USGS&

USGS 09182400 Castle Creek below Castle Valley near Moab, UT 38.6738712 -109.4501174 4,120

Y

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09182400&agency_cd=USGS&

USGS 09182500 Castle Creek near Moab, Utah 38.67914895 -109.4492841 4,060

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=09182500&agency_cd=USGS&

USGS 09182880 Colorado River at highway bridge nr Moab, UT 38.6038705 -109.5778956 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=09182880&agency_cd=USGS&

USGS 09182900 Courthouse Wash at Arches hwy cross nr Moab, UT 38.648592 -109.599285 4,100

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09182900&agency_cd=USGS&

USGS 09183000 Courthouse Wash near Moab, Utah 38.61275926 -109.5798402 3,980

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09183000&agency_cd=USGS&

USGS 09183210 Colorado R above Mill Creek near Moab, Utah 38.57525984 -109.5787286 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=09183210&agency_cd=USGS&

USGS 09183500 Mill Creek at Sheley Tunnel, near Moab, UT 38.4830403 -109.4040043 5,500

Y

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09183500&agency_cd=USGS&

USGS 09183600 Mill Creek below Sheley Tunnel, near Moab, UT 38.48571796 -109.4111044 5,341

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09183600&agency_cd=USGS&

USGS 09184000 Mill Creek near Moab, UT 38.56220477 -109.5140057 4,240

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09184000&agency_cd=USGS&

Table 2. Streamgage and surface-water sites that have more than location data reported in the National Water Information System database within the study area, Utah and Colorado. 
Surface-Water Resources 17

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land

surface

altitude,

in feet

Discharge

data?

(Y/N)

Field

parameters

(temperature, 

pH, Sp. C.)? (Y/N)

Major

ions?

(Y/N)

Trace

metals?

(Y/N)

Link to NWIS website

USGS 09184500 Pack Creek at M4 Ranch, nr Moab, Utah 38.436097 -109.354837 6,140 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09184500&agency_cd=USGS&

USGS 09185000 Pack Creek near Moab, Utah 38.540261 -109.500672 NR Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09185000&agency_cd=USGS&

USGS 09185500 Hatch Wash near La Sal, Utah 38.24332 -109.440114 5,500 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09185500&agency_cd=USGS&

USGS 09185800 Indian Creek Tunnel near Monticello, Utah 37.8411046 -109.5054004 9,120 Y Y N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09185800&agency_cd=USGS&

USGS 09186000 Indian Creek near Monticello, Utah 37.844438 -109.518734 8,700 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09186000&agency_cd=USGS&

USGS 09186500* Indian C ab Cottonwood Creek, nr Monticello, UT 37.9722137 -109.5192888 6,290 Y Y N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09186500&agency_cd=USGS&

USGS 09187000* Cottonwood Creek near Monticello, Utah 38.062489 -109.574288 5,340 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09187000&agency_cd=USGS&

USGS 09187500* Indian Creek abv Harts Draw, nr Monticello, UT 38.151655 -109.625675 4,920 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09187500&agency_cd=USGS&

USGS 09187550* Indian Creek blw Bogus Pocket, nr Monticello, UT 38.1516546 -109.6256753 4,920 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=09187550&agency_cd=USGS&

USGS 09187650 Salt Cr at Canyonlands Natl Park nr Monitcello, UT 38.118071 -109.752845 5,000 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09187650&agency_cd=USGS&

USGS 09316000 Browns Wash near Green River, Utah 38.98608294 -110.1298576 4,085 Y Y N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09316000&agency_cd=USGS&

USGS 09316100 FloyWash@highway bridge 6&50 near Green 

River,UT

38.92330555 -109.9423497 NR Y Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=09316100&agency_cd=USGS&

USGS 381145109525201 Colo. R. abv Green R. Confluence 38.1958611 -109.8811111 3,870 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381145109525201&agency_cd=USGS&

USGS 381354109495201 (d-29-19)33dca Colorado R. at the loop 38.23177778 -109.8311944 3,880 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381354109495201&agency_cd=USGS&

USGS 381741109465901 (d-29-19)12bdc Indian Creek at mouth near Moab 38.29480556 -109.7831944 3,950 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381741109465901&agency_cd=USGS&

USGS 382042109224201 (d-28-23)22cdd Muleshoe Creek 3 upstream 38.3449722 -109.3783611 5,800 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382042109224201&agency_cd=USGS&

USGS 382046109225801 (d-28-23)22ccd Muleshoe Creek 2 at mining area 38.3460833 -109.3828611 5,720 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382046109225801&agency_cd=USGS&

USGS 382048109230801 (d-28-23)21dda Muleshoe Creek 1 downstream 38.34677778 -109.3855833 5,680 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382048109230801&agency_cd=USGS&

USGS 382208109462701 (d-28-19)13acb Colorado R. at Lathrop Canyon 38.36888889 -109.7741667 3,950 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382208109462701&agency_cd=USGS&

USGS 382319109582801 Holman Can. Pond, rm 28.1 nr Mineral Bottom 38.38859437 -109.975125 NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382319109582801&agency_cd=USGS&

USGS 382328109470401 Lathrup Canyon no.4 Sog Springs nr. Moab, Utah 38.39109579 -109.7851196 4,800 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382328109470401&agency_cd=USGS&

USGS 382432109490201 Lathrup Canyon no. 1 Upper Wash, nr. Moab, Utah 38.40887305 -109.8178982 4,800 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382432109490201&agency_cd=USGS&

Table 2. Streamgage and surface-water sites that have more than location data reported in the National Water Information System database within the study area, Utah and Colorado.—Continued 
18 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Discharge data? (Y/N) Field parameters (temperature, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace metals? (Y/N) Link to NWIS website USGS 382433109485901 Lathrup Canyon no.3 mine shaft pool nr. Moab, UT 38.4091508 -109.8170648 4,800

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382433109485901&agency_cd=USGS&

USGS 382434109485801 Lathrup Canyon no.2,Mine Shaft Seep nr. Moab, UT 38.4094286 -109.816787 4,800

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382434109485801&agency_cd=USGS&

USGS 382500108540702 Yellowjacket Canyon (bl Sand Canyon)(Moqui nw qu 38.41665536 -108.9026039 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382500108540702&agency_cd=USGS&

USGS 382613108501800 Dolores R ab Mesa C nr Uravan, CO 38.4369329 -108.8389908 NR

N

Y

N

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382613108501800&agency_cd=USGS&

USGS 382632108523001 Rock Creek dup1 38.44221066 -108.8756587 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382632108523001&agency_cd=USGS&

USGS 382702108480101 South Fork Mesa Creek Red Canyon quad 38.45054389 -108.800934 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382702108480101&agency_cd=USGS&

USGS 382704108475301 South Fork Mesa Creek 38.45109944 -108.7987118 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382704108475301&agency_cd=USGS&

USGS 382714108514900 Roc C at mouth nr Uravan, CO 38.4538772 -108.8642695 NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382714108514900&agency_cd=USGS&

USGS 382737109452101* (d-27-20)18aab Colorado R. at Gooseneck 38.4602222 -109.75575 3,960

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382737109452101&agency_cd=USGS&

USGS 382800108481401 North Fork Mesa Creek (lower) 38.46665484 -108.8045454 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382800108481401&agency_cd=USGS&

USGS 382948108473701 North Fork Mesa Creek (Red Canyon) 38.4966545 -108.7942674 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382948108473701&agency_cd=USGS&

USGS 382955108473101 North Fork Mesa Creek Red Canyon quad 38.49859895 -108.7926007 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382955108473101&agency_cd=USGS&

USGS 382955108473102 N.F. Mesa Creek ab mine (Red Canyon quad) 38.49859895 -108.7926007 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382955108473102&agency_cd=USGS&

USGS 383006108585501 Salt Creek site number 1 38.5016545 -108.9826072 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383006108585501&agency_cd=USGS&

USGS 383015109392301* (d-26-20)36aab Colorado River at JL Eddy 38.50416667 -109.6563889 3,950

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383015109392301&agency_cd=USGS&

USGS 383158108533301 Blue Creek at mouth near Gateway 38.53276504 -108.8931599 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383158108533301&agency_cd=USGS&

USGS 383203108581001 Salt Creek below Sinbad Valley near Gateway Colo 38.5341539 -108.970107 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383203108581001&agency_cd=USGS&

USGS 383226108573001 Salt Creek site number 7- 38.54054269 -108.9589956 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383226108573001&agency_cd=USGS&

USGS 383247108570401 Salt Creek site number 8 38.5463759 -108.9517732 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383247108570401&agency_cd=USGS&

USGS 383256109354801 (d-26-21)10ccc Colorado River at King's Bottom 38.5488333 -109.5966667 3,950

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383256109354801&agency_cd=USGS&

USGS 383312108561801 Salt Creek site number 10 38.5533202 -108.938995 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383312108561801&agency_cd=USGS&

USGS 383328108555201 Salt Creek site number 2 38.55776459 -108.9317726 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383328108555201&agency_cd=USGS&

Table 2. Streamgage and surface-water sites that have more than location data reported in the National Water Information System database within the study area, Utah and Colorado.—Continued 
Surface-Water Resources 19

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land

surface

altitude,

in feet

Discharge

data?

(Y/N)

Field

parameters

(temperature, 

pH, Sp. C.)? (Y/N)

Major

ions?

(Y/N)

Trace

metals?

(Y/N)

Link to NWIS website

USGS 383342108551001 Salt Creek site number 14 38.5616534 -108.9201056 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383342108551001&agency_cd=USGS&

USGS 383420109334001 Mill Creek at 500 west, Moab, UT 38.5722044 -109.561784 3,985 Y Y N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383420109334001&agency_cd=USGS&

USGS 383427109341501 (d-26-21) 2bda Mill Creek nr mouth 38.5740833 -109.5708889 3,960 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383427109341501&agency_cd=USGS&

USGS 383454109343001 Moab Slough pond 1 38.58164865 -109.575673 3,860 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383454109343001&agency_cd=USGS&

USGS 383502109343901 Moab Slough pond 2 38.5838708 -109.5781731 3,860 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383502109343901&agency_cd=USGS&

USGS 383525109344101 Moab slough pond 3 38.5902596 -109.5787288 3,860 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383525109344101&agency_cd=USGS&

USGS 383619108501201 Mesa Creek at mouth near Uravan 38.6052637 -108.8373252 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383619108501201&agency_cd=USGS&

USGS 383712110000501* Spring Canyon, rm 67.5 at Bowknot Bend of Green R. 38.6199794 -110.0020706 NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383712110000501&agency_cd=USGS&

USGS 383714108514601 Roc Creek at mouth near Uravan 38.6205412 -108.8634374 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383714108514601&agency_cd=USGS&

USGS 383942109300401 (d-25-22) 5ada Colorado R. blw Salt Wash Rapids 38.66166667 -109.5011111 4,000 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383942109300401&agency_cd=USGS&

USGS 384025109295201* (d-24-22)33bcc Salt Wash at mouth nr Moab, UT 38.67377778 -109.4978889 4,000 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384025109295201&agency_cd=USGS&

USGS 384029109292701 (d-24-22)33acc Colorado R abv Salt Wash nr Moab 38.6748611 -109.4909722 4,000 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384029109292701&agency_cd=USGS&

USGS 384050108585201 Dolores River at Gateway 38.68054009 -108.9817756 NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384050108585201&agency_cd=USGS&

USGS 384051108584601 Dolores River @ Gateway 38.68081786 -108.9801089 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384051108584601&agency_cd=USGS&

USGS 384052108582101 West Creek at Dolores 38.68109564 -108.9731642 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384052108582101&agency_cd=USGS&

USGS 384124109144501 Onion Creek seep site number 1 38.68998609 -109.2465042 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384124109144501&agency_cd=USGS&

USGS 384139109150101 Onion Creek site number 3 38.69415277 -109.2509487 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384139109150101&agency_cd=USGS&

USGS 384146109151001 Onion Creek site number 5 38.69609716 -109.2534487 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384146109151001&agency_cd=USGS&

USGS 384152109161801 Onion Creek site number 8 38.69776344 -109.2723378 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384152109161801&agency_cd=USGS&

USGS 384155109163301 Onion Creek site number 10 38.69859669 -109.2765046 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384155109163301&agency_cd=USGS&

USGS 384201109171801 Onion Creek site number 12 38.7002631 -109.2890047 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384201109171801&agency_cd=USGS&

USGS 384203108564201 204 lower West Creek 38.7008175 -108.9456634 NR Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384203108564201&agency_cd=USGS&

Table 2. Streamgage and surface-water sites that have more than location data reported in the National Water Information System database within the study area, Utah and Colorado.—Continued 
20 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Discharge data? (Y/N) Field parameters (temperature, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace metals? (Y/N) Link to NWIS website USGS 384218109190101 Onion Creek site number 19 38.7049847 -109.3176162 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384218109190101&agency_cd=USGS&

USGS 384219109181101 Onion Creek site number 15 38.70526278 -109.3037271 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384219109181101&agency_cd=USGS&

USGS 384225109183001 Onion Creek site number 17 38.7069293 -109.309005 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384225109183001&agency_cd=USGS&

USGS 384248109222101 (d-24-23)16dad Professor Creek at hwy 128 38.71327778 -109.3724167 4,120

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384248109222101&agency_cd=USGS&

USGS 384253109194201 Onion Creek site number 22 38.71470666 -109.3290052 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384253109194201&agency_cd=USGS&

USGS 384314109202401 Onion Creek site number 24 38.7205397 -109.340672 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384314109202401&agency_cd=USGS&

USGS 384329108542201 West Creek @ Ute Creek q 38.72470598 -108.9067732 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384329108542201&agency_cd=USGS&

USGS 384341109205501 Onion Creek Seep site number 26 38.72803949 -109.3492833 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384341109205501&agency_cd=USGS&

USGS 384345109205301 Onion Creek site number 26 38.7291506 -109.3487278 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384345109205301&agency_cd=USGS&

USGS 384357109212001 Onion Creek site #28 38.73248376 -109.3562279 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384357109212001&agency_cd=USGS&

USGS 384408109214001 Onion Creek seep site number 30 38.73553918 -109.3617835 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384408109214001&agency_cd=USGS&

USGS 384458108541501 West Creek near North Fork 38.74942776 -108.9048289 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384458108541501&agency_cd=USGS&

USGS 384527108462701 West Creek below Pansy Gulch near Gateway, CO 38.75748339 -108.7748237 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384527108462701&agency_cd=USGS&

USGS 384532108540201 North Fork @ mouth s 38.7588722 -108.9012176 NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384532108540201&agency_cd=USGS&

USGS 384613108490400 West C nr mouth nr Gateway, CO 38.77026115 -108.8184365 NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384613108490400&agency_cd=USGS&

USGS 385948110083801 drain no.1 near Green River, UT 38.99677778 -110.1438611 NR

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385948110083801&agency_cd=USGS&

USGS 390135110082301 East-Side Canal at mouth nr Green River, UT 39.0265 -110.1397222 NR

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=390135110082301&agency_cd=USGS&

USGS 390212109323401 Nash Wash near Thompson, Utah 39.0366411 -109.5434565 5,000

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=390212109323401&agency_cd=USGS&

USGS 390214110084901 ditch no. 3 near Green River, UT 39.03719444 -110.1470278 NR

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=390214110084901&agency_cd=USGS&

USGS 390446110082401 East-Side Canal at head nr Green River, UT 39.0794722 -110.1398611 NR

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=390446110082401&agency_cd=USGS&

USGS 390828109242201 Cottonwood Wash near Cisco, Utah 39.141088 -109.4067885 5,080

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=390828109242201&agency_cd=USGS&

USGS 391455109140401 Westwater Wash near Harley Dome, Utah 39.24859 -109.235119 4,900

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=391455109140401&agency_cd=USGS&

* Denotes sites that are loacted in the Moab Master Leasing Plan area.

Table 2. Streamgage and surface-water sites that have more than location data reported in the National Water Information System database within the study area, Utah and Colorado.—Continued 
Surface-Water Resources 21

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Altitude of 

gage, 

in feet

Period of record

Group 

classification1 Link to NWIS website

USGS 09163570 Hay Press c ab Fruita Res #3, nr Glade Park, CO 38.850817 -108.782879 8,990 1983-04-01 to 

1988-03-31

1 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09163570&agency_cd=USGS&

USGS 09180920 Onion Creek above Onion C Bridge nr Moab, UT 38.69693 -109.255115 NR 1979-08-17 to 

1981-10-19

1 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09180920&agency_cd=USGS&

USGS 09180970 Onion Creek below Onion Crk Bridge nr Moab, UT 38.706374 -109.315116 NR 1979-08-16 to 

1981-10-08

2 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09180970&agency_cd=USGS&

USGS 09182200 Castle Creek below Castleton near Moab, UT 38.612485 -109.332338 5,600 1992-04-03 to 

2001-09-30

2 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09182200&agency_cd=USGS&

USGS 09182400 Castle Creek below Castle Valley near Moab, UT 38.673871 -109.450117 4,120 1992-04-03 to 

2012-10-14 

2 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09182400&agency_cd=USGS&

USGS 09183600 Mill Creek below Sheley Tunnel, near Moab, UT 38.485718 -109.411104 5,341 2003-10-01 to 

2012-10-30

2 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09183600&agency_cd=USGS&

USGS 09184500 Pack Creek at M4 Ranch, nr Moab, Utah 38.436097 -109.354837 6,140 1954-10-01 to 

1959-09-30 

2 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09184500&agency_cd=USGS&

USGS 09185000 Pack Creek near Moab, Utah 38.540261 -109.500672 NR 1954-10-01 to 

1959-09-30 

2 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09185000&agency_cd=USGS&

USGS 09182000 Castle Creek above diversions, near Moab, Utah 38.592764 -109.265671 7,070 1950-07-11 to 

1975-10-07 

3 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09182000&agency_cd=USGS&

USGS 09185800 Indian Creek Tunnel near Monticello, Utah 37.841105 -109.5054 9,120 1957-10-01 to 

1980-09-30

3 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09185800&agency_cd=USGS&

USGS 09186000 Indian Creek near Monticello, Utah 37.844438 -109.518734 8,700 1949-10-01 to 

1957-09-30

3 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09186000&agency_cd=USGS&

USGS 09187000 Cottonwood Creek near Monticello, Utah 38.062489 -109.574288 5,340 1949-10-01 to 

1957-09-30

3 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09187000&agency_cd=USGS&

USGS 09316100 Floywash@highway Bridge 6&50 near Green River,UT 38.923306 -109.94235 NR 1983-04-15 to 

1986-09-30

3 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09316100&agency_cd=USGS&

USGS 09163675 Cottonwood Wash at I-70, near Cisco, Utah 39.081652 -109.217615 NR 1983-04-13 to 

1986-09-30

4 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09163675&agency_cd=USGS&

USGS 09179200 Salt Creek near Gateway, CO 38.533043 -108.97094 5,220 1979-09-01 to 

1985-09-30 

4 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09179200&agency_cd=USGS&

USGS 09183500 Mill Creek at Sheley Tunnel, near Moab, UT 38.48304 -109.404004 5,500 1954-10-01 to 

2012-12-02

4 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09183500&agency_cd=USGS&

USGS 09184000 Mill Creek near Moab, UT 38.562205 -109.514006 4,240 1949-07-01 to 

1993-10-25

4 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09184000&agency_cd=USGS&

USGS 09187550 Indian Creek blw Bogus Pocket, nr Monticello, UT 38.151655 -109.625675 4,920 1983-04-01 to 

1988-03-02

4 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09187550&agency_cd=USGS&

USGS 09179000 Roc Creek near Uranium, CO. 38.435266 -108.922883 5,200 1944-08-01 to 

1952-09-30

5 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09179000&agency_cd=USGS&

USGS 09181000 Onion Creek near Moab, Utah 38.724984 -109.345117 4,120 1950-06-29 to 

1955-09-30

5 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09181000&agency_cd=USGS&

USGS 09181500 Professor Creek near Moab, UT 38.72915 -109.375672 4,070 1950-07-01 to 

1953-09-30

5 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09181500&agency_cd=USGS&

Table 3. Streamgages with daily discharge data from the National Water Information System database used to estimate streamflow statistics within the study area, Utah and Colorado. 
22 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Altitude of gage, in feet Period of record Group classifica- tion1 Link to NWIS website USGS 09182500 Castle Creek near Moab, Utah 38.679149 -109.449284 4,060 1950-07-10 to 1958-09-30

5 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09182500&agency_cd=USGS&

USGS 09182900 Courthouse Wash at Arches hwy cross nr Moab, UT 38.648592 -109.599285 4,100 1958-10-01 to 

1966-07-15

5 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09182900&agency_cd=USGS&

USGS 09183000 Courthouse Wash near Moab, Utah 38.612759 -109.57984 3,980 1949-10-01 to 

1989-09-30

5 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09183000&agency_cd=USGS&

USGS 09185500 Hatch Wash near La Sal, Utah 38.24332 -109.440114 5,500 1950-08-01 to 

1971-09-30

5 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09185500&agency_cd=USGS&

USGS 09186500 Indian C ab Cottonwood Creek, nr Monticello, UT 37.972214 -109.519289 6,290 1949-10-01 to 

1991-10-07

5 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09186500&agency_cd=USGS&

USGS 09187500 Indian Creek abv Harts Draw, nr Monticello, UT 38.151655 -109.625675 4,920 1949-10-01 to 

1984-01-31

5 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09187500&agency_cd=USGS&

USGS 09316000 Browns Wash near Green River, Utah 38.986083 -110.129858 4,085 1949-03-01 to 

1968-09-30

5 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09316000&agency_cd=USGS&

USGS 09179500 Dolores River at Gateway, CO. 38.681373 -108.980387 4,548 1936-10-01 to 

1954-09-30

6 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09179500&agency_cd=USGS&

USGS 09180000 Dolores River near Cisco, UT 38.797208 -109.195114 4,165 1950-12-01 to 

2012-10-29

6 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09180000&agency_cd=USGS&

USGS 09180500 Colorado River near Cisco, UT 38.810541 -109.293449 4,090 1913-10-01 to 

2012-10-18

6 http://waterdata.usgs.gov/nwis/inventory/?site_

no=09180500&agency_cd=USGS&

1Group classification based on the following stream characteristics: 

1 Low discharge perennial streams with maximum daily discharges of less than 10 cfs. 2 Moderate discharge perennial streams with maximum daily discharges between 10 and 100 cfs. 3 Moderate discharge ephemeral or intermittent streams with maximum daily discharges between 10 and 100 cfs. 4 High discharge perennial streams with maximum daily discharges between 100.1 and 1,000 cfs. 5 High discharge ephemeral or intermittent streams with maximum daily discharges between 100.1 and 1,000 cfs. 6 Very high discharge perennial streams with maximum daily discharges greater than 10,000 cfs. 

Table 3. Streamgages with daily discharge data from the National Water Information System database used to estimate streamflow statistics within the study area, Utah and Colorado.—Continued 
Surface-Water Resources 23

Figure 3. Location of U.S. Geological Survey streamgages used to compute daily streamflow statistics within the study area and 

associated group classification.

COLORADO

UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY DOLORES COUNTY

SAN MIGUEL COUNTY

MONTROSE

COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book

Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Moab Master Leasing Plan area

National Park

Study area boundary

Surface-water site—Groupings 

based on maximum daily 

discharge; Number refers to U.S. 

Geological Survey site number

09179000

09172000

Group 1

Group 2

Group 3

Group 4

Group 5

Group 6

EXPLANATION

09163675

09316000

09316100

09163570

09180500

09180000

09179500

09179200

09179000 09184500

09182000

09182200

09182400

09180920 09180970

09185500

09187000

09186500

09186000

09185800

09187550

09187500

09183600 09183500

09185000

09184000

09183000

09182900

09182500

09181500 09181000
24 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

General Streamflow Classification

An annual spring snowmelt and runoff event dominates 

the hydrology of streams draining mountainous parts of the 

study area, and most of the perennial streams within the study 

area are considered to be snowmelt-dominated. Hydrographs 

for snowmelt-dominated streams such as Hay Press Creek 

(USGS site number 09163570) or Mill Creek at Sheley Tunnel (USGS site number 09183500) show a well-defined peak 

that lasts several weeks during the spring to early summer 

(generally, Julian days 91 through 211; fig. 4). Many of the 

gaged streams also are perennial for most of the period of the 

record, such as Castle Creek (USGS site number 09182400) 

or Mill Creek near Moab (USGS site number 09184000; fig. 

4). If the minimum daily flow decreases to zero, however, the 

stream is considered ephemeral/intermittent at that location. 

The hydrographs for streamgage sites on Indian Creek (USGS 

site number 09186000) and Cottonwood Creek (USGS site 

number 09187000) show this ephemeral/intermittent pattern 

(fig. 4).

Figure 4. Hydrographs showing daily stream discharge statistics of representative streams for each of the six stream groups within 

the study area.

1 31 61 91 121 151 181 211 241 271 301 331 361 1 31 61 91 121 151 181 211 241 271 301 331 361

Discharge, in cubic feet per second

Julian day

0.01

0.1

1

10

100

0.01

0.1

1

10

100

0.01

0.1

1

10

USGS site number and name:

09187000 COTTONWOOD CREEK NEAR MONTICELLO, UTAH

Group 3-Ephemeral or intermittent streams between 10 and 100 cubic feet per second

Calculation period - 10/1/1949 through 9/30/1957

USGS site number and name:

09186000 INDIAN CREEK NEAR MOTICELLO, UTAH

Group 3-Ephemeral or intermittent streams between 10 and 100 cubic feet per second

Calculation period - 10/1/1949 through 9/30/1957

USGS site number and name:

09184500 PACK CREEK AT M4 RANCH, NR MOAB, UTAH

Group 2-Perennial streams between 10 and 100 cubic feet per second

Calculation period - 10/1/1954 through 9/30/1959

USGS site number and name:

09163570 HAY PRESS C AB FRUITA RES #3, NR GLADE PARK, CO.

Group 1-Perennial streams less than 10 cubic feet per second

Calculation period - 10/1/1983 through 9/30/1988

USGS site number and name:

09180920 ONION CREEK ABOVE ONION C BRIDGE NR MOAB, UT

Group 1-Perennial streams less than 10 cubic feet per second

Calculation period - 10/1/1978 through 9/30/1982

USGS site number and name:

09182400 CASTLE CREEK BELOW CASTLE VALLEY NEAR MOAB, UT

Group 2-Perennial streams between 10 and 100 cubic feet per second

Calculation period - 10/1/1991 through 9/30/2011

Mean daily discharge

Minimum/maximum daily discharge
Surface-Water Resources 25

The timing of the peak snowmelt runoff at a streamgage 

will vary in time because of year-to-year variations in snowpack depth and air temperature, which control the rate of 

spring snowmelt (Clow, 2010). Higher-altitude locations 

generally are underlain by fractured volcanics with secondary 

permeability that increases subsurface infiltration and groundwater recharge, as opposed to rapid surficial runoff (Gardner 

and others, 2010). Examples of this behavior are Pack Creek 

(USGS site number 09184500) and Indian Creek (USGS site 

number 09186000; fig. 4).

A bimodal distribution is observed in hydrographs from 

some sites with a late-spring snowmelt-runoff peak followed 

by smaller peaks of shorter duration during the late summer, 

such as Cottonwood Creek (USGS site number 09187000), 

Courthouse Wash (USGS site number 09183000), and Hatch 

Wash (USGS site number 09185500; fig. 4). The rapid and 

intense (flashy) response to monsoonally-derived precipitation 

events (generally occurring on Julian days 181 through 301) 

is typical of watersheds where semi-impermeable slickrock 

sandstone is prevalent. In these areas, high rainfall intensities 

can lead to excess overland flow.

Discharge, in cubic feet per second

Julian day

1

10

100

1,000

10,000

100,000

0.01

0.1

1

10

100

1,000

0.01

0.1

1

10

100

1,000

1 31 61 91 121 151 181 211 241 271 301 331 361 1 31 61 91 121 151 181 211 241 271 301 331 361

USGS site number and name:

09180000 DOLORES RIVER NEAR CISCO, UT

Group 6-Perennial streams greater than 10,000 cubic feet per second

Calculation period - 10/1/1986 through 9/30/2012

USGS site number and name:

09180500 COLORADO RIVER NEAR CISCO, UT

Group 6-Perennial streams greater than 10,000 cubic feet per second

Calculation period - 10/1/1913 through 9/30/2012

USGS site number and name:

09185500 HATCH WASH NEAR LA SAL, UTAH

Group 5-Ephemeral or intermittent streams between 100.1 and 1,000 cubic feet per second

Calculation period - 10/1/1949 through 9/30/1971

USGS site number and name:

09183000 COURTHOUSE WASH NEAR MOAB, UT

Group 5-Ephemeral or intermittent streams between 100.1 and 1,000 cubic feet per second

Calculation period - 10/1/1949 through 9/30/1989

USGS site number and name:

09183500 MILL CREEK AT SHELEY TUNNEL, NEAR MOAB, UT

Group 4-Perennial streams between 100.1 and 1,000 cubic feet per second

Calculation period - 10/1/1954 through 9/30/2012

USGS site number and name:

09184000 MILL CREEK NEAR MOAB, UT

Group 4-Perennial streams between 100.1 and 1,000 cubic feet per second

Calculation period - 10/1/1981 through 9/30/1993

Mean daily discharge

Minimum/maximum daily discharge

Figure 4. Hydrographs showing daily stream discharge statistics of representative streams for each of the six stream groups within 

the study area.—Continued 
26 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

The very large regional streams include the Colorado 

River, the Green River, and the Dolores River. These rivers 

integrate local streamflow variations caused by local meteorological conditions, event-based variations, and complex 

topography of very large contributing areas. The hydrographs 

for these streams, therefore, are much more smooth and 

consistent, as indicated by the Colorado River (USGS site 

number 09180500) or the Dolores River (USGS site number 

09180000) hydrographs (fig. 4). These hydrographs show 

a clear late spring snowmelt-runoff peak, and less flashy 

response to subsequent precipitation events than some of the 

smaller streams.

The mean daily discharge and the maximum and minimum 

daily discharge for the period of record provide information 

on the stream type, flow duration, and range of discharge that 

has been observed at the streamgage. Additional information 

on streamflow can be obtained by examining mean annual 

discharge. The mean annual discharge for each of the 31 

locations with long-term statistics, arranged into the six group 

classifications, is shown in figure 5. In general, the larger and 

(or) perennial streams show less variation in mean annual 

discharge than the smaller and (or) ephemeral/intermittent 

streams.

Surface-Water Quality

Water-quality samples were collected by the USGS from 

the streamgages and surface-water sampling sites within the 

study area during a variety of previous and ongoing investigations. At 99 of the streamgages and sampling sites, stream 

discharge and (or) field parameters were measured, and (or) 

water samples were collected and analyzed for varying suites 

of parameters (table 2). As many as 501 individual parameters have been measured, including physical stream parameters, hydrologic conditions, water quality, and biological 

constituents.

Each of the streamgages and sampling sites were sampled 

between 1 and 2,983 times over the period of record for the 

site, with an average of 65 samples collected per site. A total 

of 6,444 water-quality samples were collected within the study 

area. Most samples (67 percent) were collected at the Dolores 

River near Cisco (USGS site number 09180000) and Colorado 

River near Cisco (USGS site number 09180500) streamgages.

Specific conductance provides a spatial indicator of the 

relative difference in total dissolved solids between locations that can be used to infer general water quality. Specific 

conductance is essentially a surrogate for total dissolved solids 

because conductance is highly dependent on the amount of 

dissolved solids in the water. As a general rule of thumb, 

specific conductance can be converted to concentrations of 

total dissolved solids by multiplying the conductance by 

0.65 (Hem, 1985). The measured mean values of specific 

conductance from streamgages and surface-water sampling 

sites within the study area are shown in figure 6. Mean 

specific-conductance values were calculated as the mean of 

all specific-conductance measurements made at each surfacewater streamgage or sampling site; the number of measurements and period of record are highly variable from site to 

site. Eight sites in Salt Creek, a tributary of the Dolores River, 

had 8 of the 10 greatest mean specific-conductance measurements, ranging from slightly greater than 12,000 μS/cm up 

to about 141,000 μS/cm. The other two locations with mean 

specific-conductance values greater than 10,000 μS/cm were 

Professor Creek at Highway 128, near Moab, Utah (USGS 

site number 384248109222101), and Lathrop Canyon No. 2 

(USGS site number 382434109485801) located north of the 

confluence of the Green and Colorado Rivers in Canyonlands 

National Park. These results are consistent with previous 

investigations that identify the effects of regional salt anticlines on salinity loading (Weir and others, 1983).

Because the regional surface-water resources are 

an extremely limited and valuable resource, pollutants that cause restrictions on use can be detrimental. 

The Clean Water Act Amendments of 1977 (available at 

http://www.epa.gov/npdes/pubs/cwatxt.txt, accessed June 3, 

2013) require states to establish and maintain water-quality 

standards that are designed to protect, restore, and preserve the 

quality of water throughout the state. When the water-quality 

standards are not maintained in a water body for the designated use classification, section 303(d) of the Clean Water Act 

requires the state to place the water body on a list of impaired 

waters and to prepare a plan to restore the water quality. The 

plan of study is based on the total maximum daily load, which 

establishes the maximum amount of the pollutant in a specific 

water body to maintain the designated beneficial use. Several 

streams throughout the study area are considered impaired for 

specific designated-use classifications (available at http://www.

epa.gov/waters/ir/index.html accessed on November 8, 2013). 

Based on the reporting cycle for 2010, the EPA has reported 

that the Colorado River is impaired with respect to selenium. 

Mill Creek, Onion Creek, Pack Creek, and the Dolores River 

are impaired with respect to total dissolved solids. Additionally, Mill Creek, Onion Creek, and Pack Creek are impaired 

with respect to temperature, and the Dolores River is impaired 

with respect to iron. Finally, Castle Creek, Westwater Creek, 

and Cottonwood Wash are impaired with respect to benthic 

macroinvertebrates bioassessments.
Surface-Water Resources 27

Figure 5. Hydrographs showing mean annual surface-water discharge, grouped by stream classification.

USGS site number and name:

09182000 CASTLE CREEK ABOVE 

DIVERSIONS, NEAR MOAB, UTAH 

USGS site number and name:

09180970 ONION CREEK BELOW 

ONION CRK BRIDGE NR MOAB, 

UT 

USGS site number and name:

09163570 HAY PRESS C AB FRUITA 

RES #3, NR GLADE PARK, CO 

USGS site number and name:

09185800 INDIAN CREEK TUNNEL 

NEAR MONTICELLO, UTAH 

USGS site number and name:

09182200 CASTLE CREEK 

BELOW CASTLETON NEAR 

MOAB, UT 

USGS site number and name:

09180920 ONION CREEK ABOVE ONION

CRK BRIDGE NR MOAB, UT 

USGS site number and name:

09186000 INDIAN CREEK NEAR 

MONTICELLO, UTAH 

USGS site number and name:

09182400 CASTLE CREEK BELOW 

CASTLE VALLEY NEAR MOAB, UT 

USGS site number and name:

09185000 PACK CREEK NEAR 

MOAB, UTAH 

USGS site number and name:

09187000 COTTONWOOD CREEK 

NEAR MONTICELLO, UTAH 

USGS site number and name:

09183600 MILL CREEK BELOW 

SHELEY TUNNEL, NEAR MOAB, 

UT 

USGS site number and name:

09316100 FLOYWASH@HIGHWAY 

BRIDGE 6&50 NEAR GREEN RIVER, 

UT 

USGS site number and name:

09184500 PACK CREEK AT M4 

RANCH NR MOAB, UT 

0.01

0.1

1

10

0.01

0.1

1

10

0.01

0.1

1

10

Group 3-Ephemeral or intermittent streams between 10 and 100 cubic feet per second 

Group 2-Perennial streams between 10 and 100 cubic feet per second 

Group 1-Perennial streams less than 10 cubic feet per second 

19101920193019401950196019701980199020002010

Mean annual discharge, in cubic feet per second
28 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Figure 5. Hydrographs showing mean annual surface-water discharge, grouped by stream classification.—Continued 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000

2010

Mean annual discharge, in cubic feet per second

0.01

0.1

1

10

100

1,000

10,000

100,000

0.01

0.1

1

10

100

0.01

0.1

1

10

100

USGS site number and name:

09182900 COURTHOUSE WASH 

AT ARCHES HWY CROSS NR MOAB, UT 

USGS site number and name:

09184000 MILL CREEK NEAR 

MOAB, UT 

USGS site number and name:

09185500 HATCH WASH NEAR LA SAL, UTAH 

USGS site number and name:

09187550 INDIAN CREEK BLW 

BOGUS POCKET, NR MONTICELLO, UT 

USGS site number and name:

09180500 COLORADO RIVER 

NEAR CISCO, UT 

USGS site number and name:

9187500 INDIAN CREEK ABV HARTS 

DRAW, NR MONTICELLO, UT 

USGS site number and name:

09183500 MILL CREEK AT 

SHELEY TUNNEL, NEAR MOAB, UT 

USGS site number and name:

09180000 DOLORES RIVER NEAR 

CISCO, UT 

USGS site number and name:

09179000 ROC CREEK NEAR 

URANIUM, CO. 

USGS site number and name:

09179200 SALT CREEK NEAR 

GATEWAY, CO 

USGS site number and name:

09179500 DOLORES RIVER AT 

GATEWAY, CO. 

USGS site number and name:

09181500 PROFESSOR CREEK 

NEAR MOAB, UT 

USGS site number and name:

09163675 COTTONWOOD WASH 

AT I-70, NEAR CISCO, UTAH 

USGS site number and name:

09181000 ONION CREEK 

NEAR MOAB, UTAH 

USGS site number and name:

09316000 BROWNS WASH NEAR 

GREEN RIVER, UTAH 

USGS site number and name:

09183000 COURTHOUSE WASH 

NEAR MOAB, UT 

USGS site number and name:

09182500 CASTLE CREEK 

NEAR MOAB, UTAH 

USGS site number and name:

09186500 INDIAN C AB COTTONWOOD 

CREEK, NR MONTICELLO, UT 

Group 6-Perennial streams greater than 10,000 cubic feet per second 

Group 5-Ephemeral or intermittent streams between 100.1 and 1,000 cubic feet per second 

Group 4-Perennial streams between 100.1 and 1,000 cubic feet per second 

USGS site number and name:

09183500 MILL CREEK AT 

SHELEY TUNNEL, NEAR MOAB, UT 
Surface-Water Resources 29

Figure 6. Mean field-measured specific conductance for surface-water sites within the study area. COLORADO UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY

DOLORES COUNTY

SAN MIGUEL COUNTY

MONTROSE COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River

Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Moab Master Leasing Plan area

National Park

Study area boundary

Mean, field-measured specific 

conductance for surface-water 

sites, in microsiemens per 

centimeter at 25 degrees 

Celsuis—Size indicates value, 

color indicates number of samples

EXPLANATION

0 to 500

501 to 1,000

1,001 to 5,000

5,001 to 10,000

10,001 to 50,000

50,001 to 100,000

100,001 to 141,000

1 to 5

6 to 10

11 to 50

51 to 100

101 to 500

501 to 1,000

1,000 to 1,788
30 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Groundwater

Data for springs and wells within the study area were 

obtained from the USGS NWIS database (available at 

http://waterdata.usgs.gov/nwis), and include location information; discharge data for springs; water-level and total depth 

data for wells; and selected field parameters, major ions, and 

trace metals. While other unpublished groundwater data may 

exist from other agencies, only USGS data are discussed in 

the following sections. Within the study area, there are 216 

springs (fig. 7) and 1,062 wells (fig. 8) reported in NWIS. 

Most of these reported sites, however, have no data associated 

with them in NWIS other than location.

Springs 

Of the 216 springs reported in the NWIS database for the 

study area (fig. 7), 129 have no discharge or water-quality 

data associated with them. Of the remaining 87 springs, 64 

have at least 1 discharge measurement; 65 have reported field 

measurements of temperature, pH, and (or) specific conductance; 65 have reported major ion concentrations; and 61 have 

reported concentrations of trace metals, including iron, manganese, arsenic, selenium, and (or) uranium (table 4). Links 

to the NWIS database are provided in table 4 for sites with 

discharge and (or) water-quality data. Although few of the 

reported springs are present within the Moab MLP area, large 

parts of the Moab MLP area are upgradient of springs that are 

important water resources, especially springs in Canyonlands 

and Arches National Parks. Groundwater withdrawals within 

the Moab MLP area, therefore, potentially could affect discharge to these downgradient springs.

The mean discharge for the 64 springs with available 

discharge data within the study area is shown in figure 9. 

Mean discharge was calculated as the mean of all discharge 

measurements made at each spring; the number of measurements and period of record are highly variable from spring 

to spring. Mean spring discharge within the study area varies 

widely between less than 1 and 371 gal/min. The largest 

reported mean spring discharges are in Moab-Spanish Valley, and on the western flank of the La Sal Mountains. Most 

springs within the study area have mean discharges of less 

than 10 gal/min.

Wells

Of the 1,062 wells reported in the NWIS database for the 

study area (fig. 8), 590 have no water-level or water-quality 

data associated with them. Of the remaining 472 wells, 417 

have at least 1 water-level measurement; 115 have reported 

field measurements of temperature, pH, and (or) specific 

conductance; 109 have reported major ion concentrations; and 

77 have reported concentrations of trace metals, including 

iron, manganese, arsenic, selenium, and (or) uranium (table 

5). Links to the NWIS database are provided in table 5 for 

wells with water-level and (or) water-quality data. Although 

a number of the reported wells are located within the Moab 

MLP area, there are no data other than location reported in the 

NWIS database for most of these wells.

Water Levels

Mean water-level altitudes for 417 wells within the study 

area are shown in figure 10. Mean water-level altitudes were 

calculated as the mean of all water-level measurements made 

at each well; the number of measurements and period of 

record are highly variable from well to well. Mean waterlevel altitudes range from 2,500 to 8,500 ft within the study 

area. The water-level altitudes generally indicate a regional 

hydraulic gradient, or groundwater flow potential, towards the 

Colorado River, with local gradients showing groundwater 

movement towards small surface-water drainage features.

The locations of 20 wells with long-term (20 years or 

greater) water-level records in the study area are shown in 

figure 11. Hydrographs of the water levels in these wells are 

shown in figure 12. Wells 1, 2, 4, 5, 7, and 15 are completed 

in unconsolidated aquifers; wells 6, 8, and 10 are completed 

in the Glen Canyon Group aquifer; and aquifers of completion 

are unknown for wells 3, 9, 11, 12, 13, 14, 16, 17, 18, 19, and 

20.

Seasonally, water levels are higher in the spring and lower 

in the autumn, which can be seen in hydrographs of wells that 

were measured more than once annually (for example, wells 

7 and 9 from 1971 to 1982 on fig 12). Water levels generally 

declined from the late 1960s to the late 1970s (for example, 

wells 1, 7, and 9 on fig. 12), corresponding to a period of 

below-average precipitation in the area (Burden and others, 

2011, fig. 40). Water levels in the 1980s show a large rise 

(for example, wells 1, 6, 7, 8, 9, and 17 on fig. 12), which 

corresponds to an increase in precipitation to near-average 

or above-average conditions in the mid- to late 1980s (Burden and others, 2011, fig. 40). Water levels generally rose or 

remained constant in the 1990s (for example, wells 1, 2, 6, 7, 

8, and 9 on fig. 12), followed by a decline from the early to 

mid-2000s (for example, wells 6, 7, 8, 9, and 17 on fig. 12), 

corresponding to a slight decrease in precipitation (Burden and 

others, 2011, fig. 40). Since the mid-2000s, water levels have 

remained relatively constant (for example, wells 1, 2, 5, 7, 8, 

9, and 10 on fig. 12).
Groundwater 31

Figure 7. Location of spring sites within the study area reported in the National Water Information System database. COLORADO UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY

DOLORES COUNTY

SAN MIGUEL COUNTY

MONTROSE COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River

Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book

Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Moab Master Leasing Plan area

National Park

Study area boundary

Spring site—From the National 

Water Infomation System (NWIS) 

database for which location 

infomation is the only available 

data

Spring site—From the National 

Water Information System (NWIS) 

database for which there are 

discharge and (or) water-quality 

data

EXPLANATION
32 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Figure 8. Location of wells within the study area reported in the National Water Information System database. COLORADO UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY

DOLORES COUNTY

SAN MIGUEL COUNTY

MONTROSE COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book

Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Moab Master Leasing Plan area

National Park

Study area boundary

Well site—From the National Water 

Infomation System (NWIS) 

database for which location 

infomation is the only available 

data

Well site—From the National Water 

Information System (NWIS) 

database for which there are 

water-level and (or) water-quality 

data

EXPLANATION
Groundwater 33

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Discharge 

data? 

(Y/N)

Field parameters 

(temperature, 

pH, Sp. C.)? (Y/N)

Major 

ions? 

(Y/N)

Trace 

metals? 

(Y/N)

Link to NWIS website

USGS 375802109323001* (D-32-22)30dba-S1 37.96721 -109.54234 7,100 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375802109323001&agency_cd=USGS&

USGS 375831109211001 (D-32-23)24ccc-S1 37.97527 -109.35345 6,850 N N Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375831109211001&agency_cd=USGS&

USGS 380646109494701 (D-31-19) 4adc-S1 38.11277 -109.83040 5,400 Y N N Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=380646109494701&agency_cd=USGS&

USGS 380655109451501 (D-31-20) 6ada-S1 38.11527 -109.75484 5,020 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=380655109451501&agency_cd=USGS&

USGS 380658109490701 (D-31-19) 3bda-S1 38.11610 -109.81929 5,270 Y Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380658109490701&agency_cd=USGS&

USGS 380728109492801 T(D-30-19)34cac-S1 38.12443 -109.82512 5,200 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=380728109492801&agency_cd=USGS&

USGS 380742109460201 (D-30-19)31cdd-S1 38.12832 -109.76790 5,030 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=380742109460201&agency_cd=USGS&

USGS 380830109492501 (D-30-19)27cdd-S1 38.14165 -109.82429 5,180 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=380830109492501&agency_cd=USGS&

USGS 380835109473001 (D-30-19)25cdc-S1 38.14304 -109.79235 5,060 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=380835109473001&agency_cd=USGS&

USGS 380850109485501 (D-30-19)26cbc-S1 38.14721 -109.81596 5,080 Y Y N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380850109485501&agency_cd=USGS&

USGS 380924109451001 (D-30-20)20cdd-S1 38.15665 -109.75346 4,936 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380924109451001&agency_cd=USGS&

USGS 380950109475601 (D-30-19)22add-S1 38.16388 -109.79957 4,950 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=380950109475601&agency_cd=USGS&

USGS 381041109490701 (D-30-19)15adc-S1 38.17804 -109.81929 4,780 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381041109490701&agency_cd=USGS&

USGS 381110109482101 (D-30-19)14aab-S1 38.18610 -109.80651 4,780 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381110109482101&agency_cd=USGS&

USGS 381122109502001 (D-30-19) 9dbd-S1 38.18943 -109.83957 4,750 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381122109502001&agency_cd=USGS&

USGS 381138109471101 (D-30-19)12acb-S1 38.19388 -109.78707 4,730 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381138109471101&agency_cd=USGS&

USGS 381331109474901 T(D-29-19)36bbc-S1 38.22526 -109.79762 4,390 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381331109474901&agency_cd=USGS&

USGS 381914109201101 (D-28-23)36dba-S1 38.32054 -109.33706 6,300 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381914109201101&agency_cd=USGS&

USGS 382041109210201 (D-28-23)23ddb-S1 38.34471 -109.35122 6,170 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382041109210201&agency_cd=USGS&

USGS 382330109272001* (D-28-22) 1cab-S1 38.39165 -109.45623 5,130 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382330109272001&agency_cd=USGS&

USGS 382357109531901 (D-28-18) 1abc-S1 38.39915 -109.88929 5,920 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382357109531901&agency_cd=USGS&

Table 4. Spring sites with discharge and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado. 
34 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Discharge data? (Y/N) Field parameters (temperature, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace metals? (Y/N) Link to NWIS website USGS 382400109210001 (D-28-23) 3ad -S1 38.39999 -109.35067 NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382400109210001&agency_cd=USGS&

USGS 382417109574801 (D-27-18)32dcb-S1 38.40471 -109.96401 4,240

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382417109574801&agency_cd=USGS&

USGS 382430109254501 (D-27-23)31dbc-S1 38.40832 -109.42984 5,320

Y

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382430109254501&agency_cd=USGS&

USGS 382500109200001 (D-27-24)19c -S1 38.41665 -109.33400 NR

N

N

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382500109200001&agency_cd=USGS&

USGS 382505109561801 (D-27-18)27ccb-S1 38.41804 -109.93901 4,640

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382505109561801&agency_cd=USGS&

USGS 382543109193101 (D-27-24)30bbc-S1 38.42860 -109.32595 6,700

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382543109193101&agency_cd=USGS&

USGS 382558109201901 (D-27-23)24dcc-S1 38.43276 -109.33928 6,400

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382558109201901&agency_cd=USGS&

USGS 382630109502001 (D-27-19)21bdc-S1 38.44165 -109.83957 5,680

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382630109502001&agency_cd=USGS&

USGS 382633109492801 (D-27-19)22bbc-S1 38.44248 -109.82512 5,680

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382633109492801&agency_cd=USGS&

USGS 382700109270001 (D-27-23)17a -S1 38.44998 -109.45067 NR

N

N

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382700109270001&agency_cd=USGS&

USGS 382707110002301 R(D-27-17)13dba-S1 38.45193 -110.00707 3,990

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382707110002301&agency_cd=USGS&

USGS 382713109555001 (D-27-18)15bdc-S1 38.45359 -109.93123 4,890

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382713109555001&agency_cd=USGS&

USGS 383023109212501 (D-26-23)26dcc-S1 38.50637 -109.35762 7,440

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383023109212501&agency_cd=USGS&

USGS 383107109162301 (D-26-24)28aba-S1 38.51860 -109.27373 9,370

Y

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383107109162301&agency_cd=USGS&

USGS 383149109284601 (D-26-22)22aad-S1 38.53082 -109.47928 4,580

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383149109284601&agency_cd=USGS&

USGS 383156109284201 (D-26-22)22aaa-S1 38.53248 -109.47984 4,580

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383156109284201&agency_cd=USGS&

USGS 383203109280001 (D-26-22)14acc-S1 38.54248 -109.46845 4,660

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383203109280001&agency_cd=USGS&

USGS 383206109292401 (D-26-22)15cdc-S1 38.53498 -109.49067 4,480

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383206109292401&agency_cd=USGS&

USGS 383213109293301 (D-26-22)15cca-S1 38.53693 -109.49317 4,480

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383213109293301&agency_cd=USGS&

USGS 383254109291201 (D-26-22)15cbb-S1 38.54832 -109.48734 4,460

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383254109291201&agency_cd=USGS&

USGS 383309109322001 (D-26-22) 7cca-S1 38.55248 -109.53956 4,240

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383309109322001&agency_cd=USGS&

Table 4. Spring sites with discharge and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 35

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Discharge 

data? 

(Y/N)

Field parameters 

(temperature, 

pH, Sp. C.)? (Y/N)

Major 

ions? 

(Y/N)

Trace 

metals? 

(Y/N)

Link to NWIS website

USGS 383351109232801 (D-26-23) 3ccc-S1 38.56415 -109.39178 5,600 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383351109232801&agency_cd=USGS&

USGS 383534109334001 (D-25-21)35aaa-S1 38.59276 -109.56178 4,080 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383534109334001&agency_cd=USGS&

USGS 383607109342801 (D-25-21)26bdc-S1 38.60193 -109.57512 4,040 Y Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383607109342801&agency_cd=USGS&

USGS 383610109341601 (D-25-21)26bdd-S1 38.60276 -109.57178 4,000 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383610109341601&agency_cd=USGS&

USGS 383610109342201 (D-25-21)26bdc-S2 38.60276 -109.57345 4,040 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383610109342201&agency_cd=USGS&

USGS 383824109555801* (D-25-18) 9ddc-S1 38.63998 -109.93346 5,040 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383824109555801&agency_cd=USGS&

USGS 383955109373001 (D-25-21) 5abb-S1 38.66526 -109.62567 4,240 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383955109373001&agency_cd=USGS&

USGS 383957109380301 (D-25-21) 5bbb-S1 38.66581 -109.63484 4,240 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383957109380301&agency_cd=USGS&

USGS 383957109390101* (D-25-21) 6bba-S1 38.66581 -109.65095 4,320 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383957109390101&agency_cd=USGS&

USGS 384020109340601 (D-24-22) 8aba-S1 38.67220 -109.56901 4,360 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384020109340601&agency_cd=USGS&

USGS 384025109385701 (D-24-21)31dab-S1 38.67359 -109.64984 4,240 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384025109385701&agency_cd=USGS&

USGS 384155109312001 (D-24-22) 6bdc-S1 38.69859 -109.52290 4,500 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384155109312001&agency_cd=USGS&

USGS 384157109162301 (D-24-24)21ddb-S1 38.69915 -109.27373 4,960 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384157109162301&agency_cd=USGS&

USGS 384157109162302 (D-24-24)21dbb-S2 38.69915 -109.27373 5,200 N N Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384157109162302&agency_cd=USGS&

USGS 384158109113001 (D-24-25)20cac-S1 38.69943 -109.19234 5,430 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384158109113001&agency_cd=USGS&

USGS 384203109373901 (D-24-21)20cad-S1 38.69998 -109.62818 4,640 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384203109373901&agency_cd=USGS&

USGS 384215109172201 Little Salt Spring near 38.70415 -109.29012 NR N N Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384215109172201&agency_cd=USGS&

USGS 384340109361301 (D-24-21)30cad-S1 38.72776 -109.60429 4,310 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384340109361301&agency_cd=USGS&

USGS 384354109480801* (D-24-19)10dcd-S1 38.73164 -109.80290 4,720 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384354109480801&agency_cd=USGS&

USGS 384355109353501 (D-24-21)31bda-S1 38.73192 -109.59373 4,240 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384355109353501&agency_cd=USGS&

USGS 384357109354701 (D-24-21)31bba-S1 38.73248 -109.59706 4,340 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384357109354701&agency_cd=USGS&

Table 4. Spring sites with discharge and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
36 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Discharge data? (Y/N) Field parameters (temperature, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace metals? (Y/N) Link to NWIS website USGS 384443109580201* (D-24-18) 7aaa-S1 38.74525 -109.96790 4,400

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384439109563901&agency_cd=USGS&

USGS 384544109434201* (D-23-20)32dca-S1 38.76220 -109.72901 4,580

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384544109434201&agency_cd=USGS&

USGS 384736109334201 (D-23-21)23dad-S1 38.79331 -109.56234 4,520

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384736109334201&agency_cd=USGS&

USGS 384813109304701* (D-23-22)17cab-S1 38.80359 -109.51373 4,660

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384813109304701&agency_cd=USGS&

USGS 384900109203001* (D-23-23)11dbc-S1 38.81665 -109.34234 4,420

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384900109203001&agency_cd=USGS&

USGS 384903109191201* (D-23-23)12dba-S1 38.81748 -109.32067 4,240

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384903109191201&agency_cd=USGS&

USGS 384908109174501 (D-23-24) 8cbb-S1 38.81887 -109.29650 4,155

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384908109174501&agency_cd=USGS&

USGS 385109109364801* (D-22-21)32aac-S1 38.85248 -109.61401 4,700

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385109109364801&agency_cd=USGS&

USGS 385314109114901 (D-22-25)18cdb-S1 38.88721 -109.19761 4,520

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385314109114901&agency_cd=USGS&

USGS 385433109060701 (D-22-25)12bda-S1 38.90915 -109.10261 5,720

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385433109060701&agency_cd=USGS&

USGS 385627109131201 (D-21-24)36bbc-S1 38.94082 -109.22067 4,200

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385627109131201&agency_cd=USGS&

USGS 385631109133301 (D-21-24)35aab-S1 38.94193 -109.22650 4,200

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385631109133301&agency_cd=USGS&

USGS 385958110082301 (D-21-16)10dbd-S1 Seep 38.99947 -110.13972 4,060

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385958110082301&agency_cd=USGS&

USGS 390239109432201 (D-20-20)28bbb-S1 39.04414 -109.72346 5,760

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=390239109432201&agency_cd=USGS&

USGS 382756108522001 NB04901833DAC 38.46554 -108.87288 4,750

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382756108522001&agency_cd=USGS&

USGS 383131108584701 042 Sinbad Spring 38.52527 -108.98039 NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383131108584701&agency_cd=USGS&

USGS 383135108584701 Salt Springs at Sinbad Valley, CO site 1a 38.52638 -108.98039 NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383135108584701&agency_cd=USGS&

USGS 383135108584702 Salt Springs at Sinbad Valley, CO site 1b 38.52638 -108.98039 NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383135108584702&agency_cd=USGS&

USGS 383326108384801 NB05001634BCB1 38.55721 -108.64732 9,180

N

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383326108384801&agency_cd=USGS&

USGS 383521108385301 NB05001622BBC1 38.58915 -108.64871 9,300

N

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383521108385301&agency_cd=USGS&

USGS 383655109021001 001 Willow Spring 38.61526 -109.03678 NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383655109021001&agency_cd=USGS&

Table 4. Spring sites with discharge and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 37

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Discharge 

data? 

(Y/N)

Field parameters 

(temperature, 

pH, Sp. C.)? (Y/N)

Major 

ions? 

(Y/N)

Trace 

metals? 

(Y/N)

Link to NWIS website

USGS 384502108494501 SC01510218ADC1 38.75054 -108.82983 NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384502108494501&agency_cd=USGS&

USGS 385334108542901 SC01310127DAD1 38.89276 -108.90872 8,630 N Y N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385334108542901&agency_cd=USGS&

USGS 385420108442701 SC01310224DCA1 38.90554 -108.74149 NR N N Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385420108442701&agency_cd=USGS&

* Denotes sites that are loacted in the Moab Master Leasing Plan area.

Table 4. Spring sites with discharge and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
38 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Figure 9. Mean discharge for springs reported in the National Water Information System database within the study area. COLORADO UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY

DOLORES COUNTY

SAN MIGUEL COUNTY

MONTROSE COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book

Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Moab Master Leasing Plan area

National Park

Study area boundary

Mean spring discharge, in 

gallons per minute

0.1 to 1

1.1 to 5

5.1 to 10

10.1 to 50

50.1 to 100

100.1 to 200

Greater than 200

EXPLANATION
Groundwater 39

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 375642109105001 (D-32-25)33cdd- 1 37.94499306 -109.1812233 6,750 NR 147 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375642109105001&agency_cd=USGS&

USGS 375801109080000 (D-32-25)25cbb- 1 37.96693721 -109.1339999 6,820 NR 169 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375801109080000&agency_cd=USGS&

USGS 375804109082300 (D-32-25)26adc- 1 37.96777057 -109.140389 6,795 NR 240 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375804109082300&agency_cd=USGS&

USGS 375804109093000 (D-32-25)27adc- 1 37.96777063 -109.1590005 6,765 NR 145 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375804109093000&agency_cd=USGS&

USGS 375809109165500 (D-32-24)28ada- 1 37.96915961 -109.2826146 6,880 NR 150 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375809109165500&agency_cd=USGS&

USGS 375816109151200 (D-32-24)26bad- 1 37.97110418 -109.2540026 6,860 NR 210 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375816109151200&agency_cd=USGS&

USGS 375825109085700 (D-32-25)26bab- 1 37.97360391 -109.1498336 6,740 NR 145 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375825109085700&agency_cd=USGS&

USGS 375827109154201 (D-32-24)26bbb- 1 37.97415965 -109.2623362 6,840 90 90 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375827109154201&agency_cd=USGS&

USGS 375830109133200 (D-32-25)18ccc- 1 37.97499298 -109.2262241 6,815 NR 200 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375830109133200&agency_cd=USGS&

USGS 375902109190400 (D-32-24)20bcb- 1 37.98388144 -109.3184491 7,005 NR 210 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375902109190400&agency_cd=USGS&

USGS 375903109155801 (D-32-24)22adb- 1 37.98415949 -109.2667807 6,910 1,620 1,595 Y Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375903109155801&agency_cd=USGS&

USGS 375913109190700 (D-32-24)19aad- 1 37.98693695 -109.3192824 7,020 NR 210 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=375913109190700&agency_cd=USGS&

USGS 380000109150501 (D-32-24)11abc- 1 37.99999269 -109.2520579 6,720 175 175 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380000109150501&agency_cd=USGS&

USGS 380006109084101 (D-32-25)14baa- 1 38.00165937 -109.1453889 6,880 225 220 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380006109084101&agency_cd=USGS&

USGS 380034109260701* (D-32-23) 7dbb- 1 38.00943595 -109.4359527 6,310 NR 275 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380034109260701&agency_cd=USGS&

USGS 380244109202201 (D-31-23)36dac- 1 38.0455469 -109.3401156 6,080 NR 402 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380244109202201&agency_cd=USGS&

USGS 380307109253101* (D-31-23)32bbd- 1 38.05193515 -109.4259515 6,200 1,545 1,480 Y Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380307109253101&agency_cd=USGS&

USGS 380356109195801 (D-31-24)30bca- 1 38.06554656 -109.3334484 6,040 NR 190 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380356109195801&agency_cd=USGS&

USGS 380402109213301* (D-31-23)26abd- 1 38.06721303 -109.3598381 6,060 NR 220 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380402109213301&agency_cd=USGS&

USGS 380425109204201 (D-31-23)24dbc- 1 38.07360188 -109.3456709 5,980 NR 164 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380425109204201&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado. 
40 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 380435109212901* (D-31-23)23add- 1 38.07637952 -109.3587267 6,020 156 154

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380435109212901&agency_cd=USGS&

USGS 380445109142701 (D-31-24)24bdb- 1 38.07915796 -109.2415011 5,960 1,200 365

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380445109142701&agency_cd=USGS&

USGS 380542109252201* (D-31-23)17bbd- 1 38.09498984 -109.4234504 6,240 NR 350

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380542109252201&agency_cd=USGS&

USGS 380552109234201* (D-31-23) 9ddd- 1 38.09776775 -109.3956718 6,195 NR 352

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380552109234201&agency_cd=USGS&

USGS 380613109141501 (D-31-24) 7daa- 1 38.10360199 -109.2381674 5,980 1,100 220

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380613109141501&agency_cd=USGS&

USGS 380632109221301* (D-31-23) 2ccc- 1 38.10887881 -109.3709487 6,070 NR 275

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380632109221301&agency_cd=USGS&

USGS 380649109112601 (D-31-25) 5dda- 1 38.113602 -109.1912219 6,360 NR 280

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380649109112601&agency_cd=USGS&

USGS 380730109251301* (D-31-23) 5baa- 1 38.12498925 -109.4209497 6,210 NR 420

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380730109251301&agency_cd=USGS&

USGS 380804109190301 (D-30-24)32ccd- 1 38.13443424 -109.3181691 5,840 NR 300

N

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380804109190301&agency_cd=USGS&

USGS 380812109152501 (D-30-24)35bac- 1 38.13665685 -109.2576119 6,160 NR 700

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380812109152501&agency_cd=USGS&

USGS 380835109473002 (D-30-19)25cdc- 1 38.14304298 -109.7923453 5,080 NR 77

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380835109473002&agency_cd=USGS&

USGS 380850109463501 (D-30-20)30cba- 1 38.14720977 -109.777067 5,020 NR 52

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=380850109463501&agency_cd=USGS&

USGS 380857109164001 (D-30-24)27cba- 1 38.14915647 -109.2784456 5,970 NR 1,800

N

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380857109164001&agency_cd=USGS&

USGS 380906109194601 (D-30-24)30bda- 1 38.15165605 -109.3301135 5,830 NR 185

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380906109194601&agency_cd=USGS&

USGS 380922109334601* (D-30-21)25aaa- 1 38.15609908 -109.563452 6,340 NR 200

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380922109334601&agency_cd=USGS&

USGS 380924109210001 (D-30-23)25bba- 1 38.1566558 -109.3506695 5,988 NR 350

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380924109210001&agency_cd=USGS&

USGS 380940109443501 (D-30-20)20dac- 1 38.16109885 -109.7437325 4,940 NR 65

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=380940109443501&agency_cd=USGS&

USGS 380946109162101 (D-30-24)22caa- 1 38.16276737 -109.2731675 5,990 NR 500

Y

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380946109162101&agency_cd=USGS&

USGS 380951109162401 (D-30-24)22bdd- 1 38.16415623 -109.2740008 6,000 NR 500

Y

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380951109162401&agency_cd=USGS&

USGS 380959109234201* (D-30-23)22bcb- 1 38.1663775 -109.3956704 5,870 NR 300

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=380959109234201&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 41

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 380959109445001 (D-30-20)20aca- 1 38.16637661 -109.7478992 5,000 NR 78 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=380959109445001&agency_cd=USGS&

USGS 381034109274501* (D-30-22)13cab- 1 38.17633333 -109.4624722 6,020 373 373 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381034109274501&agency_cd=USGS&

USGS 381035109162901 (D-30-24)15caa- 1 38.17637822 -109.2753896 6,099 NR 8,861 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381035109162901&agency_cd=USGS&

USGS 381043109253200* (D-30-23)17bdc- 1 38.17859924 -109.4262265 6,200 NR 375 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381043109253200&agency_cd=USGS&

USGS 381050109251301* (D-30-23)17acb- 1 38.18054369 -109.4209485 5,900 NR 300 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381050109251301&agency_cd=USGS&

USGS 381100109152801 (D-30-24)14bad- 1 38.18332266 -109.2584446 6,732 NR 9,022 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381100109152801&agency_cd=USGS&

USGS 381100109170001 (D-30-24)16aax- 1 38.18332247 -109.2840008 6,218 NR 9,120 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381100109170001&agency_cd=USGS&

USGS 381125109140101 (D-30-24)12dab- 1 38.19026715 -109.2342774 6,320 NR 670 Y Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381125109140101&agency_cd=USGS&

USGS 381137109245001* (D-30-23) 8ada- 1 38.19359903 -109.4145592 5,860 NR 355 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381137109245001&agency_cd=USGS&

USGS 381140109222501 (D-30-23)10add- 1 38.19443266 -109.3742805 5,712 NR 47 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381140109222501&agency_cd=USGS&

USGS 381142109171301 (D-30-24) 9acd- 1 38.19498889 -109.2876118 6,259 NR 8,848 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381142109171301&agency_cd=USGS&

USGS 381146109173001 (D-30-24) 9bac- 1 38.19609994 -109.2923341 6,294 NR 9,533 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381146109173001&agency_cd=USGS&

USGS 381247109230001* (D-30-23) 3bac- 1 38.21304333 -109.3840026 5,680 NR 300 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381247109230001&agency_cd=USGS&

USGS 381256109253801* T(D-29-23)32ccc- 1 38.21554292 -109.4278924 5,810 NR 275 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381256109253801&agency_cd=USGS&

USGS 381322109235801* T(D-29-23)33dbb- 1 38.22276523 -109.4001138 5,670 NR 133 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381322109235801&agency_cd=USGS&

USGS 381329109240001* T(D-29-23)33aca- 1 38.22470963 -109.4006694 5,690 NR 178 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381329109240001&agency_cd=USGS&

USGS 381430109260001* (D-29-23)31bac- 1 38.24165345 -109.434003 5,600 NR NR Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381430109260001&agency_cd=USGS&

USGS 381452109240801* (D-29-23)28cbd- 1 38.2477647 -109.4028912 5,880 NR 350 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381452109240801&agency_cd=USGS&

USGS 381502109313101* (D-29-22)30add- 1 38.25054173 -109.5259491 6,000 NR 325 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381502109313101&agency_cd=USGS&

USGS 381534109263101* (D-29-22)24ddb- 1 38.25943089 -109.4426142 5,720 NR 425 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381534109263101&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
42 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 381600109244501* (D-29-23)20caa- 1 38.2666533 -109.4131692 5,920 NR 425

N

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381600109244501&agency_cd=USGS&

USGS 381634109393401* (D-29-21)18bdx- 1 38.27609763 -109.6601181 6,196 NR 7,256

N

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381634109393401&agency_cd=USGS&

USGS 381700109190801 (D-29-24)18bab- 1 38.28332068 -109.3195566 6,415 NR 126

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381700109190801&agency_cd=USGS&

USGS 381707109175501 (D-29-24)17aax- 1 38.2852653 -109.2992785 6,600 NR 2,190

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381707109175501&agency_cd=USGS&

USGS 381721109163301 (D-29-24) 9ddd- 1 38.28915437 -109.2765003 6,660 175 175

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381721109163301&agency_cd=USGS&

USGS 381735109155001 (D-29-24)10cda- 1 38.29304335 -109.2645558 6,730 585 575

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381735109155001&agency_cd=USGS&

USGS 381745109154401 (D-29-24)10acc- 1 38.29582112 -109.2628891 6,765 100 100

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381745109154401&agency_cd=USGS&

USGS 381747109155001 (D-29-24)10caa- 1 38.29637666 -109.2645558 6,750 535 535

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381747109155001&agency_cd=USGS&

USGS 381800109153001 (D-29-24)10aab- 1 38.2999878 -109.2590002 6,820 NR 186

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381800109153001&agency_cd=USGS&

USGS 381806109185801 (D-29-24) 7aba- 1 38.3016539 -109.316779 6,570 NR 620

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381806109185801&agency_cd=USGS&

USGS 381807109161501 (D-29-24)10bba- 1 38.30193211 -109.2715005 6,770 180 180

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381807109161501&agency_cd=USGS&

USGS 381820109435501* (D-29-20) 4cba- 1 38.30554192 -109.7326192 4,585 NR 5,076

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=381820109435501&agency_cd=USGS&

USGS 381829109173701 (D-29-24) 5daa- 1 38.30804296 -109.2942787 6,650 NR NR

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381829109173701&agency_cd=USGS&

USGS 381830109240801* (D-29-23) 4cba- 1 38.30831968 -109.4028916 5,920 828 828

Y

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381830109240801&agency_cd=USGS&

USGS 381842109241001 (D-29-23) 4bca- 1 38.31165298 -109.4034472 5,940 NR 712

N

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381842109241001&agency_cd=USGS&

USGS 381852109184601 (D-29-24) 6aad- 1 38.31443162 -109.3134458 6,520 NR 215

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381852109184601&agency_cd=USGS&

USGS 381857109182101 (D-29-24) 5bab- 1 38.31582056 -109.3065013 6,560 215 215

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381857109182101&agency_cd=USGS&

USGS 381900109254201* (D-28-23)31dcc- 1 38.31665268 -109.4290032 5,800 NR 280

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381900109254201&agency_cd=USGS&

USGS 381906109170401 (D-28-24)33cdc- 1 38.31832076 -109.2851121 6,780 NR 410

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381906109170401&agency_cd=USGS&

USGS 381935109254501* (D-28-23)31acb- 1 38.3263748 -109.4298367 5,880 NR 925

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381935109254501&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 43

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 381938109254701* (D-28-23)31abc- 1 38.32720812 -109.4303922 5,880 830 827 Y Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=381938109254701&agency_cd=USGS&

USGS 382041109254601 (D-28-23)19dcc- 1 38.34470796 -109.4301146 5,580 NR 450 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382041109254601&agency_cd=USGS&

USGS 382055109355501* (D-28-21)22cac- 1 38.34859636 -109.5992836 5,998 NR 8,518 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382055109355501&agency_cd=USGS&

USGS 382138109250001 (D-28-23)17cdb- 1 38.36054128 -109.4173367 5,749 NR 8,450 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382138109250001&agency_cd=USGS&

USGS 382140109515601 (D-28-19)18dca- 1 38.3610956 -109.8662333 6,264 NR 7,193 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382140109515601&agency_cd=USGS&

USGS 382230109285601* (D-28-22)10ddb- 1 38.37498487 -109.4828932 5,211 NR 7,853 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382230109285601&agency_cd=USGS&

USGS 382321109270201 (D-28-22) 1cdb- 1 38.38915174 -109.4512262 5,120 NR 180 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382321109270201&agency_cd=USGS&

USGS 382321109373701* (D-28-21) 5dcd- 1 38.38915142 -109.6276172 5,600 NR NR Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382321109373701&agency_cd=USGS&

USGS 382343109265301 (D-28-22) 1caa- 1 38.39526282 -109.4487263 5,110 NR 114 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382343109265301&agency_cd=USGS&

USGS 382350109214201 (D-28-23) 2bcd- 1 38.39720823 -109.3623365 6,850 NR 10,516 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382350109214201&agency_cd=USGS&

USGS 382618109213201 (D-27-23)23caa- 1 38.43831903 -109.3595591 6,080 105 105 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382618109213201&agency_cd=USGS&

USGS 382621109214001 (D-27-23)23cab- 1 38.43915233 -109.3617814 6,040 NR 84 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382621109214001&agency_cd=USGS&

USGS 382655109310001* (D-27-22)17ddb- 1 38.44859498 -109.5173382 5,290 NR 7,874 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382655109310001&agency_cd=USGS&

USGS 382757109235601 (D-27-23) 9cac- 1 38.46581829 -109.3995597 5,280 NR 96 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382757109235601&agency_cd=USGS&

USGS 382814108554401 NB04900931BBB 38.4705437 -108.9295496 5,892 NR 28 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382814108554401&agency_cd=USGS&

USGS 382829109550701 (D-27-18)10aaa- 1 38.47470484 -109.9192893 4,240 585 585 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382829109550701&agency_cd=USGS&

USGS 382829109565401 (D-27-18) 9bab- 1 38.47470469 -109.9490124 4,170 NR 585 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382829109565401&agency_cd=USGS&

USGS 382834109270701 (D-27-22) 1cdd- 1 38.47609529 -109.4526157 4,920 NR 310 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382834109270701&agency_cd=USGS&

USGS 382840109274300 (D-27-22) 2dbd- 1 38.47776182 -109.4626157 4,940 NR 315 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382840109274300&agency_cd=USGS&

USGS 382840109355001* (D-27-21) 3cdc- 1 38.47776128 -109.5978945 4,300 NR 6,354 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382840109355001&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
44 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 382910109270701 (D-27-22) 1bda- 1 38.48609519 -109.4526157 4,880 NR 192

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382910109270701&agency_cd=USGS&

USGS 382918109272001 (D-27-22) 1bbd- 1 38.48831735 -109.4562269 4,840 250 250

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382918109272001&agency_cd=USGS&

USGS 382921109265801 (D-27-22) 1abb- 1 38.48915075 -109.4501157 4,860 NR 315

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382921109265801&agency_cd=USGS&

USGS 382924109273301 (D-27-22) 1bbb- 1 38.48998395 -109.459838 4,820 NR 350

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382924109273301&agency_cd=USGS&

USGS 382948109280601 (D-26-22)35dbb- 1 38.49665043 -109.4690047 4,760 186 186

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382948109280601&agency_cd=USGS&

USGS 382951109273501 (D-26-22)35daa- 3 38.49748387 -109.4603936 4,755 192 192

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382951109273501&agency_cd=USGS&

USGS 382952109252701 (D-27-23) 6dad- 1 38.49776211 -109.4248379 5,060 NR 455

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382952109252701&agency_cd=USGS&

USGS 382952109280101 (D-26-22)35bdd- 1 38.49776154 -109.4676158 4,750 140 140

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382952109280101&agency_cd=USGS&

USGS 382953109274801 (D-26-22)35acd- 1 38.49803937 -109.4640047 4,760 210 210

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382953109274801&agency_cd=USGS&

USGS 382953109274802 (D-26-22)35acd- 2 38.49803937 -109.4640047 4,760 185 185

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382953109274802&agency_cd=USGS&

USGS 382954109274201 (D-26-22)35adc- 1 38.49831716 -109.462338 4,760 173 173

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382954109274201&agency_cd=USGS&

USGS 382955109280401 (D-26-22)35bdd- 2 38.49859486 -109.4684492 4,740 NR 247

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=382955109280401&agency_cd=USGS&

USGS 382956109273401 (D-26-22)35daa- 1 38.49887274 -109.4601158 4,780 NR 170

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382956109273401&agency_cd=USGS&

USGS 382957109281501 (D-26-22)35bdd- 3 38.49915037 -109.4715048 4,740 NR 250

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=382957109281501&agency_cd=USGS&

USGS 383001109273401 (D-26-22)35ada- 1 38.50026162 -109.4601158 4,740 185 185

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383001109273401&agency_cd=USGS&

USGS 383001109281501 (D-26-22)35bdb- 1 38.50026147 -109.4715048 4,740 295 295

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383001109281501&agency_cd=USGS&

USGS 383005109280901 (D-26-22)35bda- 1 38.50137259 -109.4698381 4,720 336 336

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383005109280901&agency_cd=USGS&

USGS 383006109275201 (D-26-22)35abd- 1 38.50165043 -109.4651159 4,730 205 205

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383006109275201&agency_cd=USGS&

USGS 383006109275401 (D-26-22)35abd- 2 38.50165042 -109.4656714 4,730 182 182

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383006109275401&agency_cd=USGS&

USGS 383010109281901 (D-26-22)35bac- 1 38.50276144 -109.4717826 4,710 151 150

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383010109281901&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 45

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 383014109281801 (D-26-22)35bab- 1 38.50387253 -109.4723381 4,710 288 288 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383014109281801&agency_cd=USGS&

USGS 383022109283801 (D-26-22)26ccc- 1 38.50609465 -109.4778937 4,700 120 120 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383022109283801&agency_cd=USGS&

USGS 383028109335201* (D-26-22)26ddb- 3 38.5077609 -109.5651165 4,740 200 200 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383028109335201&agency_cd=USGS&

USGS 383030109274901 (D-26-22)26ddb- 1 38.50831704 -109.4642826 4,720 210 210 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383030109274901&agency_cd=USGS&

USGS 383031109275101 (D-26-22)26dca- 1 38.50859481 -109.4648382 4,720 190 190 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383031109275101&agency_cd=USGS&

USGS 383032109274001 (D-26-22)26dda- 1 38.50887262 -109.4617826 4,740 220 220 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383032109274001&agency_cd=USGS&

USGS 383032109274500 (D-26-22)26ddb- 2 38.5088726 -109.4631715 4,740 250 250 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383032109274500&agency_cd=USGS&

USGS 383032109274901 (D-26-22)26dbd- 1 38.50887259 -109.4642826 4,710 210 210 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383032109274901&agency_cd=USGS&

USGS 383032109283100 (D-26-22)26cbc- 1 38.50887243 -109.4759493 4,680 209 209 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383032109283100&agency_cd=USGS&

USGS 383034109280501 (D-26-22)26dbc- 1 38.50998364 -109.467616 4,700 235 235 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383034109280501&agency_cd=USGS&

USGS 383036109281001 (D-26-22)26baa- 1 38.50998361 -109.470116 4,750 180 180 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383036109281001&agency_cd=USGS&

USGS 383043109282401 (D-26-22)26cba- 1 38.51241667 -109.4739722 4,650 250 250 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383043109282401&agency_cd=USGS&

USGS 383047109275201 (D-26-22)26acd- 1 38.5130392 -109.465116 4,740 NR NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383047109275201&agency_cd=USGS&

USGS 383049109285201 (D-26-22)27adc- 1 38.51359452 -109.4817827 4,630 132 132 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383049109285201&agency_cd=USGS&

USGS 383052109285701 (D-26-22)28adb- 1 38.51442783 -109.4831716 4,635 130 130 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383052109285701&agency_cd=USGS&

USGS 383104109284701 (D-26-22)27aad- 1 38.51776116 -109.4803939 4,605 81 80 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383104109284701&agency_cd=USGS&

USGS 383109109285501 (D-26-22)27aaa- 1 38.51915001 -109.4826161 4,610 300 300 Y Y N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383109109285501&agency_cd=USGS&

USGS 383111109300901 (D-26-22)16cdb- 1 38.5197053 -109.5031718 4,450 40 40 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383111109300901&agency_cd=USGS&

USGS 383113109281201 (D-26-22)23cdd- 1 38.52081681 -109.4717828 4,680 174 174 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383113109281201&agency_cd=USGS&

USGS 383113109285301 (D-26-22)22ddc- 1 38.52026113 -109.4812272 4,590 237 237 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383113109285301&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
46 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 383115109295701 (D-26-22)21ddc- 1 38.52081641 -109.4998384 4,650 200 200

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383115109295701&agency_cd=USGS&

USGS 383116109290101 (D-26-22)22dcd- 1 38.52109441 -109.4842828 4,580 70 70

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383116109290101&agency_cd=USGS&

USGS 383117109294001 (D-26-22)22ccc- 2 38.52137203 -109.4951162 4,620 200 200

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383117109294001&agency_cd=USGS&

USGS 383117109294601 (D-26-22)22ccc- 1 38.52137201 -109.4967829 4,640 220 220

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383117109294601&agency_cd=USGS&

USGS 383117109295501 (D-26-22)21ddc- 2 38.52137197 -109.4992829 4,640 300 300

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383117109295501&agency_cd=USGS&

USGS 383118109283301 (D-26-22)23ccb- 2 38.52165007 -109.476505 4,560 NR 110

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383118109283301&agency_cd=USGS&

USGS 383118109283701 (D-26-22)23ccc- 1 38.52165005 -109.4776161 4,610 104 104

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383118109283701&agency_cd=USGS&

USGS 383118109293701 (D-26-22)22bca- 1 38.52164982 -109.4942829 4,500 216 216

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383118109293701&agency_cd=USGS&

USGS 383119109290701 (D-26-22)22dcb- 1 38.52192771 -109.4859495 4,580 130 130

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383119109290701&agency_cd=USGS&

USGS 383123109295702 (D-26-22)21dda- 1 38.52303861 -109.4998385 4,600 240 240

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383123109295702&agency_cd=USGS&

USGS 383124109301601 (D-26-22)20dac- 1 38.52331636 -109.5051163 4,680 420 420

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383124109301601&agency_cd=USGS&

USGS 383124109303501 (D-26-22)20dbd- 1 38.52331635 -109.5103941 4,840 400 400

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383124109303501&agency_cd=USGS&

USGS 383125109292201 (D-26-22)22cad- 1 38.5235943 -109.4901162 4,570 69 69

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383125109292201&agency_cd=USGS&

USGS 383127109290401 (D-26-22)22dbd- 1 38.52414992 -109.4851162 4,570 126 126

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383127109290401&agency_cd=USGS&

USGS 383129109284001 (D-26-22)22dad- 1 38.52470556 -109.4784495 4,600 110 110

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383129109284001&agency_cd=USGS&

USGS 383129109293401 (D-26-22)22cbd- 1 38.52470535 -109.4934496 4,570 72 72

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383129109293401&agency_cd=USGS&

USGS 383130109293201 (D-26-22)22cbd- 2 38.52498313 -109.492894 4,555 119 119

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383130109293201&agency_cd=USGS&

USGS 383132109293301 (D-26-22)22cba- 2 38.52553868 -109.4931718 4,510 80 72

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383132109293301&agency_cd=USGS&

USGS 383132109294901 (D-26-22)21daa- 1 38.52553861 -109.4976163 4,580 57 57

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383132109294901&agency_cd=USGS&

USGS 383132109294902 (D-26-22)21daa- 3 38.52553861 -109.4976163 4,580 57 57

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383132109294902&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 47

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 383133109293901 (D-26-22)22cab- 1 38.52581643 -109.4948385 4,600 125 125 Y Y N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383133109293901&agency_cd=USGS&

USGS 383133109294201 (D-26-22)22cbb- 1 38.52581642 -109.4956718 4,560 87 87 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383133109294201&agency_cd=USGS&

USGS 383134109293501 (D-26-22)22cba- 1 38.52609422 -109.4937274 4,550 81 81 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383134109293501&agency_cd=USGS&

USGS 383134109295401 (D-26-22)21daa- 4 38.52609414 -109.4990052 4,560 137 137 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383134109295401&agency_cd=USGS&

USGS 383134109295701 (D-26-22)21dba- 1 38.52609413 -109.4998385 4,570 65 65 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383134109295701&agency_cd=USGS&

USGS 383134109295702 (D-26-22)21dba- 2 38.52609413 -109.4998385 4,570 75 75 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383134109295702&agency_cd=USGS&

USGS 383134109301501 (D-26-22)21cbb- 1 38.52609411 -109.5048385 4,560 280 280 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383134109301501&agency_cd=USGS&

USGS 383135109295001 (D-26-22)21daa- 2 38.52637193 -109.4978941 4,560 72 72 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383135109295001&agency_cd=USGS&

USGS 383135109302701 (D-26-22)20daa- 1 38.52637188 -109.5081719 4,600 175 175 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383135109302701&agency_cd=USGS&

USGS 383135109370101* (D-25-23)20add- 1 38.52637161 -109.6176171 5,040 400 400 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383135109370101&agency_cd=USGS&

USGS 383136108584001 Salt Cr above unnamed 

spring nr Sinbad Valley, CO

38.52665406 -108.9784406 NR NR NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383136108584001&agency_cd=USGS&

USGS 383136109304601 (D-26-22)20acb- 1 38.52664964 -109.5134497 4,600 240 240 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383136109304601&agency_cd=USGS&

USGS 383139109303301 (D-26-22)20adc- 1 38.52748297 -109.5098386 4,600 152 150 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383139109303301&agency_cd=USGS&

USGS 383140109295401 (D-26-22)21acd- 1 38.52776079 -109.4990052 4,540 60 60 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383140109295401&agency_cd=USGS&

USGS 383141109303801 (D-26-22)20dba- 1 38.52803852 -109.5112275 4,610 190 190 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383141109303801&agency_cd=USGS&

USGS 383143109294501 (D-26-22)22bcc- 2 38.52859415 -109.4965052 4,490 75 75 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383143109294501&agency_cd=USGS&

USGS 383143109304101 (D-26-22)20acd- 3 38.52859406 -109.5120608 4,600 280 214 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383143109304101&agency_cd=USGS&

USGS 383145109295201 (D-26-22)21adb- 2 38.52914967 -109.4984496 4,510 65 65 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383145109295201&agency_cd=USGS&

USGS 383145109300101 (D-26-22)21acb- 1 38.52914964 -109.5009497 4,530 NR 65 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383145109300101&agency_cd=USGS&

USGS 383146109285401 (D-26-22)22adb- 1 38.52942768 -109.4823384 4,561 59 59 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383146109285401&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
48 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 383146109301201 (D-26-22)21bbb- 3 38.52942741 -109.5040052 4,480 260 260

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383146109301201&agency_cd=USGS&

USGS 383147109301401 (D-26-22)21acb- 2 38.52970518 -109.5045608 4,540 196 196

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383147109301401&agency_cd=USGS&

USGS 383147109304201 (D-26-22)20acd- 2 38.52970516 -109.5123386 4,590 153 153

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383147109304201&agency_cd=USGS&

USGS 383148109291001 (D-26-22)22acb- 1 38.52998316 -109.4867829 4,500 70 70

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383148109291001&agency_cd=USGS&

USGS 383148109291100 (D-26-22)22acb- 2 38.52998316 -109.4870607 4,500 120 102

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383148109291100&agency_cd=USGS&

USGS 383148109295501 (D-26-22)21aca- 1 38.52998299 -109.499283 4,510 63 63

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383148109295501&agency_cd=USGS&

USGS 383148109303701 (D-26-22)20acd- 1 38.52998294 -109.5109497 4,580 NR 133

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383148109303701&agency_cd=USGS&

USGS 383149109290801 (D-26-22)22abc- 1 38.53053868 -109.4890052 4,520 80 80

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383149109290801&agency_cd=USGS&

USGS 383149109295301 (D-26-22)21adb- 1 38.53026077 -109.4987274 4,510 56 56

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383149109295301&agency_cd=USGS&

USGS 383150109295601 (D-26-22)21aca- 2 38.53053853 -109.4995608 4,500 63 63

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383150109295601&agency_cd=USGS&

USGS 383152109295801 (D-26-22)21aac- 2 38.53109407 -109.5001163 4,520 195 195

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383152109295801&agency_cd=USGS&

USGS 383153109300501 (D-26-22)21bad- 1 38.53137183 -109.5020608 4,500 62 62

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383153109300501&agency_cd=USGS&

USGS 383153109300701 (D-26-22)21abd- 2 38.53137183 -109.5026164 4,480 213 213

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383153109300701&agency_cd=USGS&

USGS 383154109302601 (D-26-22)20ada- 3 38.53164959 -109.5078942 4,540 136 136

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383154109302601&agency_cd=USGS&

USGS 383154109302801 (D-26-22)20ada- 1 38.53164959 -109.5084497 4,550 NR 113

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383154109302801&agency_cd=USGS&

USGS 383155109284801 (D-26-22)22aac- 1 38.53192768 -109.4806718 4,570 270 238

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383155109284801&agency_cd=USGS&

USGS 383155109301801 (D-26-22)21bbc- 1 38.53192737 -109.5056719 4,500 71 71

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383155109301801&agency_cd=USGS&

USGS 383156109294301 (D-26-22)22bbc- 1 38.53220523 -109.4959497 4,490 188 188

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383156109294301&agency_cd=USGS&

USGS 383157109295301 (D-26-22)21ada- 1 38.53248297 -109.4987275 4,480 180 180

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383157109295301&agency_cd=USGS&

USGS 383157109301101 (D-26-22)21bbb- 2 38.53248293 -109.5037275 4,500 225 225

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383157109301101&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 49

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 383158109194301 (D-22-23)25bac- 1 38.53276319 -109.3292821 4,220 NR NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383158109194301&agency_cd=USGS&

USGS 383158109282401 (D-26-22)23bba- 1 38.5327611 -109.4740051 4,640 450 450 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383158109282401&agency_cd=USGS&

USGS 383158109290101 (D-26-22)20aba- 2 38.53276095 -109.4842829 4,565 140 140 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383158109290101&agency_cd=USGS&

USGS 383158109300301 (D-26-22)21baa- 1 38.53276071 -109.5015053 4,480 55 55 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383158109300301&agency_cd=USGS&

USGS 383158109302901 (D-26-22)20aab- 1 38.53276069 -109.5087275 4,520 200 190 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383158109302901&agency_cd=USGS&

USGS 383159109300501 (D-26-22)21aba- 1 38.53303848 -109.5020608 4,480 136 136 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383159109300501&agency_cd=USGS&

USGS 383159109300801 (D-26-22)21bab- 1 38.53303848 -109.5028942 4,490 54 54 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383159109300801&agency_cd=USGS&

USGS 383201109295301 (D-26-22)16ddd- 3 38.53275 -109.4996389 4,480 65 65 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383201109295301&agency_cd=USGS&

USGS 383201109300301 (D-26-22)21baa- 2 38.53359403 -109.5015053 4,480 66 66 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383201109300301&agency_cd=USGS&

USGS 383202109285101 (D-26-22)22aab- 1 38.53387209 -109.4815052 4,580 106 100 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383202109285101&agency_cd=USGS&

USGS 383203109284201 (D-26-22)22daa- 1 38.5341499 -109.4790051 4,600 200 200 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383203109284201&agency_cd=USGS&

USGS 383203109285001 (D-26-22)22aab- 2 38.53414987 -109.4812274 4,580 222 222 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383203109285001&agency_cd=USGS&

USGS 383203109301501 (D-26-22)21bbb- 1 38.53414957 -109.5048386 4,470 NR 32 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383203109301501&agency_cd=USGS&

USGS 383204109294901 (D-26-22)16ddd- 1 38.5344274 -109.4976164 4,470 254 254 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383204109294901&agency_cd=USGS&

USGS 383205109291901 (D-26-22)15cdd- 1 38.5347053 -109.489283 4,560 105 105 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383205109291901&agency_cd=USGS&

USGS 383206109300901 (D-26-22)16cdc- 1 38.5349829 -109.503172 4,470 65 65 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383206109300901&agency_cd=USGS&

USGS 383206109301801 (D-26-22)16ccc- 1 38.53498289 -109.505672 4,450 NR 78 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383206109301801&agency_cd=USGS&

USGS 383206109303501 (D-26-22)20aaa- 1 38.53498288 -109.5103942 4,482 75 75 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383206109303501&agency_cd=USGS&

USGS 383209109285401 (D-26-22)15ddc- 1 38.5358165 -109.4823385 4,600 325 325 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383209109285401&agency_cd=USGS&

USGS 383209109292401 (D-26-22)15bdb- 1 38.53581638 -109.4906719 4,620 160 160 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383209109292401&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
50 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 383209109300501 (D-26-22)16ccd- 1 38.53581623 -109.5020608 4,460 40 40

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383209109300501&agency_cd=USGS&

USGS 383209109300801 (D-26-22)16bdb- 1 38.53581623 -109.5028942 4,360 75 75

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383209109300801&agency_cd=USGS&

USGS 383212109301001 (D-26-22)16ccb- 2 38.53664955 -109.5034498 4,450 51 51

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383212109301001&agency_cd=USGS&

USGS 383214109295101 (D-26-22)16dca- 1 38.53720514 -109.498172 4,440 69 69

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383214109295101&agency_cd=USGS&

USGS 383215109285701 (D-26-22)15dca- 1 38.53748314 -109.4831719 4,600 185 181

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383215109285701&agency_cd=USGS&

USGS 383215109293401 (D-26-22)15cca- 1 38.53748299 -109.4934497 4,480 119 119

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383215109293401&agency_cd=USGS&

USGS 383219109283101 (D-26-22)14cdb- 1 38.53859434 -109.4759496 4,780 320 320

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383219109283101&agency_cd=USGS&

USGS 383223109284701 (D-26-22)15dab- 2 38.53998313 -109.481783 4,655 300 300

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383223109284701&agency_cd=USGS&

USGS 383223109291501 (D-26-22)15cad- 1 38.53970526 -109.4881719 4,580 108 108

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383223109291501&agency_cd=USGS&

USGS 383223109304701 (D-26-22)17dbc- 1 38.53970504 -109.5137276 4,450 153 153

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383223109304701&agency_cd=USGS&

USGS 383224109284701 (D-26-22)15daa- 2 38.53998315 -109.4803941 4,660 300 300

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383224109284701&agency_cd=USGS&

USGS 383224109290501 (D-26-22)15dab- 1 38.53998308 -109.4853941 4,680 NR 187

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383224109290501&agency_cd=USGS&

USGS 383224109291601 (D-26-22)15caa- 2 38.53998303 -109.4884497 4,580 103 103

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383224109291601&agency_cd=USGS&

USGS 383225109295401 (D-26-22)16dab- 1 38.54026065 -109.4990053 4,440 110 110

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383225109295401&agency_cd=USGS&

USGS 383226109310001 (D-26-22)17cad- 2 38.54053835 -109.5173388 4,480 100 100

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383226109310001&agency_cd=USGS&

USGS 383227109283001 (D-26-22)14cba- 1 38.54081654 -109.4756719 4,820 460 460

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383227109283001&agency_cd=USGS&

USGS 383227109291801 (D-26-22)15caa- 1 38.54081635 -109.4890053 4,560 130 115

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383227109291801&agency_cd=USGS&

USGS 383228109284101 (D-26-22)15daa- 1 38.54109427 -109.4787274 4,800 265 265

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383228109284101&agency_cd=USGS&

USGS 383228109294401 (D-26-22)15cbb- 1 38.54109402 -109.4962275 4,480 305 150

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383228109294401&agency_cd=USGS&

USGS 383230109300101 (D-26-22)16acc- 1 38.5416495 -109.5009498 4,400 75 75

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383230109300101&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 51

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 383231109295001 (D-26-22)16add- 3 38.54192732 -109.4978942 4,520 120 120 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383231109295001&agency_cd=USGS&

USGS 383231109295701 (D-26-22)16acd- 1 38.54192729 -109.4998387 4,450 100 100 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383231109295701&agency_cd=USGS&

USGS 383232109294401 (D-26-22)15bcc- 1 38.54220512 -109.4962276 4,520 60 60 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383232109294401&agency_cd=USGS&

USGS 383232109294701 (D-26-22)16add- 1 38.5422051 -109.4970609 4,500 50 50 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383232109294701&agency_cd=USGS&

USGS 383232109310901 (D-26-22)17cab- 1 38.54220499 -109.5198388 4,420 170 170 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383232109310901&agency_cd=USGS&

USGS 383233109295200 (D-26-22)16add- 2 38.54248286 -109.4984498 4,460 NR 81 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383233109295200&agency_cd=USGS&

USGS 383235109290701 (D-26-22)15acc- 1 38.54303859 -109.4859497 4,600 200 200 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383235109290701&agency_cd=USGS&

USGS 383235109294101 (D-26-22)15bcc- 2 38.54303845 -109.4953942 4,520 140 140 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383235109294101&agency_cd=USGS&

USGS 383235109305001 (D-26-22)17dbb- 2 38.54303833 -109.5142832 4,422 50 50 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383235109305001&agency_cd=USGS&

USGS 383235109311401 (D-26-22)17dba- 1 38.54303831 -109.5212277 4,400 197 197 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383235109311401&agency_cd=USGS&

USGS 383237109291400 (D-26-22)15bda- 1 38.54359411 -109.4878942 4,630 140 140 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383237109291400&agency_cd=USGS&

USGS 383237109303201 (D-26-22)17adc- 1 38.54359389 -109.509561 4,380 36 36 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383237109303201&agency_cd=USGS&

USGS 383237109305601 (D-26-22)17bdd- 1 38.54359387 -109.5162277 4,390 83 83 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383237109305601&agency_cd=USGS&

USGS 383238109294901 (D-26-22)16ada- 1 38.54387174 -109.4976165 4,500 NR 26 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383238109294901&agency_cd=USGS&

USGS 383238109302501 (D-26-22)17add- 1 38.54387167 -109.5076165 4,360 NR NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383238109302501&agency_cd=USGS&

USGS 383238109303401 (D-26-22)17adc- 2 38.54387167 -109.5101166 4,380 69 69 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383238109303401&agency_cd=USGS&

USGS 383239109303901 (D-26-22)17acd- 1 38.54414944 -109.5115055 4,380 108 108 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383239109303901&agency_cd=USGS&

USGS 383240109302401 (D-26-22)17aad- 2 38.54442722 -109.5073388 4,360 80 80 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383240109302401&agency_cd=USGS&

USGS 383241109290901 (D-26-22)15acb- 1 38.54470523 -109.4865053 4,660 270 270 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383241109290901&agency_cd=USGS&

USGS 383242109304701 (D-26-22)17acc- 1 38.54498275 -109.5137277 4,380 206 206 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383242109304701&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
52 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 383244109302201 (D-26-22)17ada- 3 38.54553832 -109.5067832 4,310 42 42

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383244109302201&agency_cd=USGS&

USGS 383244109304901 (D-26-22)17acb- 1 38.5455383 -109.5142833 4,370 154 154

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383244109304901&agency_cd=USGS&

USGS 383245109302401 (D-26-22)17ada- 2 38.5458161 -109.5073388 4,310 42 42

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383245109302401&agency_cd=USGS&

USGS 383248109302801 (D-26-22)17adb- 1 38.54664942 -109.5084499 4,320 42 42

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383248109302801&agency_cd=USGS&

USGS 383249109302501 (D-26-22)17ada- 1 38.54692719 -109.5076166 4,340 201 201

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383249109302501&agency_cd=USGS&

USGS 383249109302901 (D-26-22)17aac- 4 38.54692719 -109.5087277 4,340 42 42

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383249109302901&agency_cd=USGS&

USGS 383250109302501 (D-26-22)17aad- 1 38.54720497 -109.5076166 4,340 40 40

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383250109302501&agency_cd=USGS&

USGS 383251109303001 (D-26-22)17aac- 2 38.54748274 -109.5090055 4,310 45 45

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383251109303001&agency_cd=USGS&

USGS 383252109314801 (D-26-22)18abd- 1 38.54776044 -109.5306723 4,400 280 280

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383252109314801&agency_cd=USGS&

USGS 383253109303201 (D-26-22)17aac- 1 38.54803829 -109.509561 4,420 42 42

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383253109303201&agency_cd=USGS&

USGS 383253109304701 (D-26-22)17abc- 1 38.54803827 -109.5137277 4,300 123 116

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383253109304701&agency_cd=USGS&

USGS 383253109310801 (D-26-22)17bac- 1 38.54803825 -109.5195611 4,330 220 220

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383253109310801&agency_cd=USGS&

USGS 383254109294101 (D-26-22)15bbb- 1 38.54831617 -109.4953943 4,560 400 250

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383254109294101&agency_cd=USGS&

USGS 383254109303601 (D-26-22)17aac- 3 38.54831606 -109.5106722 4,310 33 33

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383254109303601&agency_cd=USGS&

USGS 383256109304101 (D-26-22)17aba- 2 38.5488716 -109.5120611 4,300 63 58

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383256109304101&agency_cd=USGS&

USGS 383258109300001 (D-26-22) 9ddc- 1 38.54942719 -109.5006721 4,600 NR NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383258109300001&agency_cd=USGS&

USGS 383258109303701 (D-26-22)17aba- 1 38.54942715 -109.51095 4,320 120 120

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383258109303701&agency_cd=USGS&

USGS 383258109303801 (D-26-22)17aba- 3 38.54942715 -109.5112277 4,310 100 100

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383258109303801&agency_cd=USGS&

USGS 383259109303001 (D-26-22)17aab- 1 38.54970493 -109.5090055 4,400 140 140

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383259109303001&agency_cd=USGS&

USGS 383259109304601 (D-26-22)17abb- 1 38.54970492 -109.51345 4,290 42 42

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383259109304601&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 53

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 383300109302301 (D-26-22)17aaa- 2 38.54998272 -109.507061 4,460 180 180 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383300109302301&agency_cd=USGS&

USGS 383301109353001* (D-26-21)10cdc- 1 38.55026018 -109.5923395 3,960 100 100 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383301109353001&agency_cd=USGS&

USGS 383302109310101 (D-26-22) 8cdc- 3 38.55053823 -109.5176167 4,260 42 42 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383302109310101&agency_cd=USGS&

USGS 383304109305101 (D-26-22) 8cdd- 2 38.55109379 -109.5148389 4,260 115 115 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383304109305101&agency_cd=USGS&

USGS 383305109311801 (D-26-22) 8ccd- 1 38.55137153 -109.522339 4,240 54 54 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383305109311801&agency_cd=USGS&

USGS 383305109314701 (D-26-22) 7dcd- 1 38.5513715 -109.5303946 4,275 45 45 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383305109314701&agency_cd=USGS&

USGS 383308109203801 (D-26-23)12ccb- 1 38.5522073 -109.3445601 4,460 1,100 1,100 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383308109203801&agency_cd=USGS&

USGS 383309109230601 (D-26-23)10ccb- 2 38.55248445 -109.3856714 6,880 445 445 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383309109230601&agency_cd=USGS&

USGS 383309109302601 (D-26-22) 8dda- 2 38.55248268 -109.5078944 4,440 200 188 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383309109302601&agency_cd=USGS&

USGS 383309109310201 (D-26-22) 8cdc- 1 38.55248265 -109.5178945 4,250 41 38 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383309109310201&agency_cd=USGS&

USGS 383309109313001 (D-26-22) 7dda- 1 38.55248262 -109.5256723 4,230 80 80 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383309109313001&agency_cd=USGS&

USGS 383310109305201 (D-26-22) 8dcb- 1 38.55276043 -109.5151167 4,280 105 105 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383310109305201&agency_cd=USGS&

USGS 383311109310001 (D-26-22) 8cca- 1 38.5530382 -109.5173389 4,220 33 31 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383311109310001&agency_cd=USGS&

USGS 383312109313100 (D-26-22) 7ddb- 3 38.55331593 -109.5278946 4,200 130 129 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383312109313100&agency_cd=USGS&

USGS 383312109313601 (D-26-22) 7ddb- 1 38.55331593 -109.527339 4,210 91 91 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383312109313601&agency_cd=USGS&

USGS 383313109332101 (D-26-21) 1cbb- 1 38.55359359 -109.5565059 4,020 62 62 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383313109332101&agency_cd=USGS&

USGS 383314109312200 (D-26-22) 8ccc- 1 38.5538715 -109.5234501 4,235 117 117 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383314109312200&agency_cd=USGS&

USGS 383315109312201 (D-26-22) 8cbc- 4 38.55414927 -109.5234501 4,210 34 34 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383315109312201&agency_cd=USGS&

USGS 383315109312301 (D-26-22) 8cbc- 2 38.55414927 -109.5237279 4,210 58 58 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383315109312301&agency_cd=USGS&

USGS 383315109312302 (D-26-22) 8cbc- 3 38.55414927 -109.5237279 4,210 145 101 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383315109312302&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
54 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 383315109315601 (D-26-22) 7dbc- 4 38.55414923 -109.5328946 4,200 65 65

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383315109315601&agency_cd=USGS&

USGS 383315109320401 (D-26-22) 7cad- 1 38.55414923 -109.5351169 4,200 NR 31

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383315109320401&agency_cd=USGS&

USGS 383315109320801 (D-26-22) 7cac- 1 38.55414922 -109.536228 4,215 NR 42

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383315109320801&agency_cd=USGS&

USGS 383316109302101 (D-26-22) 8dda- 1 38.55442711 -109.5065055 4,460 150 150

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383316109302101&agency_cd=USGS&

USGS 383316109314001 (D-26-22) 7dbd- 2 38.55442703 -109.5284502 4,195 120 44

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383316109314001&agency_cd=USGS&

USGS 383316109314901 (D-26-22) 7dbd- 1 38.55442702 -109.5309502 4,200 45 45

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383316109314901&agency_cd=USGS&

USGS 383316109315301 (D-26-22) 7dbc- 3 38.55442701 -109.5320613 4,200 NR 57

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383316109315301&agency_cd=USGS&

USGS 383317109322801 (D-26-22) 8cbc- 1 38.55470475 -109.5417836 4,200 70 48

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383317109322801&agency_cd=USGS&

USGS 383317109330401 (D-26-21) 1dbb- 2 38.55470471 -109.5517837 4,000 28 28

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383317109330401&agency_cd=USGS&

USGS 383319109315301 (D-26-22) 7dbc- 1 38.55526033 -109.5320613 4,175 NR 50

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383319109315301&agency_cd=USGS&

USGS 383319109315801 (D-26-22) 7dbc- 2 38.55526033 -109.5334502 4,175 NR 47

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383319109315801&agency_cd=USGS&

USGS 383319109323101 (D-26-22) 7cbc- 1 38.55526029 -109.5426169 4,180 NR 70

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383319109323101&agency_cd=USGS&

USGS 383321109203901 (D-26-23)12cca- 1 38.55581838 -109.3448379 7,460 1,100 1,100

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383321109203901&agency_cd=USGS&

USGS 383322109311201 (D-26-22) 8cba- 2 38.5560937 -109.5206723 4,240 75 75

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383322109311201&agency_cd=USGS&

USGS 383323109310901 (D-26-22) 8cba- 1 38.55637148 -109.519839 4,240 50 50

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383323109310901&agency_cd=USGS&

USGS 383323109321501 (D-26-22) 7cab- 1 38.55637141 -109.5381725 4,160 NR 50

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383323109321501&agency_cd=USGS&

USGS 383325109302001 (D-26-22) 8daa- 1 38.55692708 -109.5062278 4,520 460 460

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383325109302001&agency_cd=USGS&

USGS 383326109304401 (D-26-22) 8dbb- 1 38.55720483 -109.5128945 4,520 460 460

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383326109304401&agency_cd=USGS&

USGS 383327109303101 (D-26-22) 8dac- 1 38.55770484 -109.5093389 4,528 465 460

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383327109303101&agency_cd=USGS&

USGS 383327109320801 (D-26-22) 7cab- 2 38.55748251 -109.536228 4,160 NR 47

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383327109320801&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 55

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 383327109321201 (D-26-22) 7bdc- 1 38.55748251 -109.5373391 4,140 NR 47 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383327109321201&agency_cd=USGS&

USGS 383327109324201 (D-26-21)12dab- 1 38.55748247 -109.5456725 4,150 105 100 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383327109324201&agency_cd=USGS&

USGS 383329109321501 (D-26-22) 7bdc- 2 38.55803805 -109.5381725 4,125 NR 53 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383329109321501&agency_cd=USGS&

USGS 383329109322401 (D-26-22) 7bcc- 1 38.55803804 -109.5406725 4,130 NR 50 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383329109322401&agency_cd=USGS&

USGS 383337109314301 (D-26-22) 7aca- 2 38.56026028 -109.5292836 4,160 NR 222 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383337109314301&agency_cd=USGS&

USGS 383340109314301 (D-26-22) 7aca- 1 38.5610936 -109.5292836 4,160 NR 245 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383340109314301&agency_cd=USGS&

USGS 383342109201401 (D-26-23)12aba- 1 38.56165179 -109.3378934 7,690 450 450 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383342109201401&agency_cd=USGS&

USGS 383344109310001 (D-26-22) 8bad- 1 38.56220475 -109.517339 4,240 640 610 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383344109310001&agency_cd=USGS&

USGS 383344109320601 (D-26-22) 7bad- 1 38.56220467 -109.5356725 4,125 NR 80 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383344109320601&agency_cd=USGS&

USGS 383346109322201 (D-26-22) 7bbd- 1 38.5627602 -109.540117 4,110 NR 59 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383346109322201&agency_cd=USGS&

USGS 383355109321601 (D-26-22) 6ccd- 1 38.56526018 -109.5384504 4,180 100 NR Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383355109321601&agency_cd=USGS&

USGS 383357109324501 (D-26-21) 1ddc- 1 38.56581569 -109.546506 4,030 80 80 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383357109324501&agency_cd=USGS&

USGS 383357109330501 (D-26-21) 1dcc- 2 38.56581566 -109.5520616 4,045 60 60 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383357109330501&agency_cd=USGS&

USGS 383403109330301 (D-26-21) 1dbb- 3 38.57130556 -109.5518889 4,025 56 56 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383403109330301&agency_cd=USGS&

USGS 383405109324201 (D-26-21) 1ddb- 1 38.56803788 -109.5456727 4,060 30 30 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383405109324201&agency_cd=USGS&

USGS 383409109323001 (D-26-22) 6cbc- 2 38.569149 -109.5423393 4,075 NR 85 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383409109323001&agency_cd=USGS&

USGS 383410109333801 (D-26-21) 1cbc- 1 38.56942668 -109.5612284 4,035 50 50 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383410109333801&agency_cd=USGS&

USGS 383412109322901 (D-26-22) 6cbc- 1 38.56998232 -109.5420616 4,080 NR 46 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383412109322901&agency_cd=USGS&

USGS 383415109324701 (D-26-21) 1dba- 1 38.57081562 -109.5470616 3,990 40 40 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383415109324701&agency_cd=USGS&

USGS 383415109324702 (D-26-21) 1dab- 2 38.57081562 -109.5470616 3,990 42 42 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383415109324702&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
56 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 383415109324703 (D-26-21) 1dab- 1 38.57081562 -109.5470616 3,990 59 59

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383415109324703&agency_cd=USGS&

USGS 383416109322801 (D-26-22) 6cbb- 1 38.57109342 -109.5417838 4,080 30 30

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383416109322801&agency_cd=USGS&

USGS 383416109323001 (D-26-22) 6cba- 1 38.57109341 -109.5423393 4,090 128 128

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383416109323001&agency_cd=USGS&

USGS 383417109325101 (D-26-21) 1dbb- 1 38.57137116 -109.5481727 4,035 37 37

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383417109325101&agency_cd=USGS&

USGS 383418109322501 (D-26-22) 6cbb- 3 38.57164897 -109.5409505 4,100 93 93

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383418109322501&agency_cd=USGS&

USGS 383419109322701 (D-26-22) 6cbb- 2 38.57192674 -109.541506 4,090 30 30

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383419109322701&agency_cd=USGS&

USGS 383419109325101 (D-26-21) 1dba- 3 38.57192671 -109.5481727 4,050 87 87

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383419109325101&agency_cd=USGS&

USGS 383420109321901 (D-26-22) 6cba- 2 38.57220453 -109.5392838 4,110 59 59

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383420109321901&agency_cd=USGS&

USGS 383423109330501 (D-26-21) 1caa- 1 38.57063889 -109.5512778 4,025 85 84

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383423109330501&agency_cd=USGS&

USGS 383427109325001 (D-26-21) 1aca- 1 38.5741489 -109.547895 4,030 NR 60

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383427109325001&agency_cd=USGS&

USGS 383427109330901 (D-26-21) 1bda- 2 38.57414888 -109.5531728 4,005 NR 60

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383427109330901&agency_cd=USGS&

USGS 383431109323701 (D-26-21) 1ada- 1 38.57526002 -109.5442839 4,070 NR 43

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383431109323701&agency_cd=USGS&

USGS 383433109331801 (D-26-21) 1bac- 1 38.57581551 -109.5556729 3,990 NR 44

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383433109331801&agency_cd=USGS&

USGS 383434109331001 (D-26-21) 1bad- 1 38.57609329 -109.5534506 3,995 NR 51

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383434109331001&agency_cd=USGS&

USGS 383435109332201 (D-26-21) 1bbd- 1 38.57637105 -109.556784 3,935 156 156

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383435109332201&agency_cd=USGS&

USGS 383436109323201 (D-26-21) 1aad- 1 38.57664889 -109.542895 4,160 115 115

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383436109323201&agency_cd=USGS&

USGS 383436109325501 (D-26-21) 1abd- 1 38.57664886 -109.5492839 4,030 NR 47

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383436109325501&agency_cd=USGS&

USGS 383436109331501 (D-26-21) 1bac- 2 38.57664883 -109.5548395 4,005 56 56

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383436109331501&agency_cd=USGS&

USGS 383439109273001 (D-26-22) 1bbb- 1 38.5774831 -109.4590055 5,160 117 117

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383439109273001&agency_cd=USGS&

USGS 383442109322601 (D-26-22) 6bbb- 1 38.57831555 -109.5412283 4,320 51 51

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383442109322601&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 57

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 383444109333201 (D-26-21) 1bbb- 1 38.578871 -109.5595618 3,980 NR 48 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383444109333201&agency_cd=USGS&

USGS 383445109332101 (D-26-21) 1bab- 1 38.57914879 -109.5565062 3,990 NR 48 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383445109332101&agency_cd=USGS&

USGS 383445109333601 (D-26-21) 1bbb- 2 38.57914877 -109.5606729 3,980 NR 40 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383445109333601&agency_cd=USGS&

USGS 383446109343201 (D-25-21)35ccd- 1 38.57942646 -109.5762286 3,960 74 74 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383446109343201&agency_cd=USGS&

USGS 383448109325001 (D-26-21) 1dba- 2 38.57998215 -109.5478951 4,030 41 41 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383448109325001&agency_cd=USGS&

USGS 383449109330001 (D-25-21)36dcc- 1 38.58025991 -109.5506729 4,035 60 60 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383449109330001&agency_cd=USGS&

USGS 383452109331301 (D-25-21)36cdc- 1 38.58109322 -109.554284 3,990 89 89 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383452109331301&agency_cd=USGS&

USGS 383456109331201 (D-25-21)36cda- 1 38.58220431 -109.5540062 4,000 84 84 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383456109331201&agency_cd=USGS&

USGS 383457109335601 (D-25-21)35dca- 3 38.58248202 -109.5662286 3,920 72 72 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383457109335601&agency_cd=USGS&

USGS 383459109332701 (D-25-21)36cbd- 1 38.58303761 -109.558173 3,985 NR 85 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383459109332701&agency_cd=USGS&

USGS 383500109331101 (D-25-21)36cac- 1 38.58331541 -109.5537285 3,995 NR 90 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383500109331101&agency_cd=USGS&

USGS 383501109440501* (D-25-20)32dbc- 1 38.5835922 -109.7353967 5,240 NR 225 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383501109440501&agency_cd=USGS&

USGS 383502109333301 (D-25-21)36cbc- 1 38.58387092 -109.5598397 4,000 65 65 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383502109333301&agency_cd=USGS&

USGS 383504109335501 (D-25-21)35dac- 1 38.58442644 -109.5659508 3,960 45 45 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383504109335501&agency_cd=USGS&

USGS 383508109400400* (D-25-21)36cba- 1 38.58553697 -109.6684517 4,800 NR 106 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383508109400400&agency_cd=USGS&

USGS 383510109333901 (D-25-21)35daa- 1 38.58609311 -109.5615064 3,980 57 57 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383510109333901&agency_cd=USGS&

USGS 383510109335601 (D-25-21)35dab- 1 38.58611111 -109.5655556 3,980 86 86 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383510109335601&agency_cd=USGS&

USGS 383525109353801 (D-25-21)35bbd- 1 38.59025952 -109.5945622 3,965 NR 5,345 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383525109353801&agency_cd=USGS&

USGS 383532109343901 (D-25-21)35bbb- 1 38.59220403 -109.5781732 3,955 10 10 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383532109343901&agency_cd=USGS&

USGS 383536109405600* (D-25-21)35baa- 1 38.5933145 -109.6828964 4,880 NR 141 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383536109405600&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
58 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 383539109340901 (D-25-21)26dcc- 1 38.5941485 -109.5698399 3,920 55 55

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383539109340901&agency_cd=USGS&

USGS 383542109143001 (D-25-24)26ccd- 1 38.59498637 -109.2423372 8,080 35 35

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383542109143001&agency_cd=USGS&

USGS 383543109184001 (D-25-24)30cda- 1 38.59526314 -109.3117823 6,120 236 236

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383543109184001&agency_cd=USGS&

USGS 383547109345201 (D-25-22)27dda- 1 38.59637061 -109.5817844 3,950 10 10

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383547109345201&agency_cd=USGS&

USGS 383607109355201 (D-25-21)28add- 1 38.60192597 -109.5984513 3,990 67 67

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383607109355201&agency_cd=USGS&

USGS 383609109190901 (D-25-23)25adc- 1 38.60248519 -109.3198379 5,920 150 150

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383609109190901&agency_cd=USGS&

USGS 383611108591301 NB05001016ADB 38.6030415 -108.9876084 5,465 NR 17

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383611108591301&agency_cd=USGS&

USGS 383613109360801 (D-25-21)28adb- 1 38.60359258 -109.6028958 4,060 114 114

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383613109360801&agency_cd=USGS&

USGS 383651109595201 R(D-27-17)12abd- 1 38.47220446 -109.9984583 4,000 523 500

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383651109595201&agency_cd=USGS&

USGS 383652110034001 (D-25-17)20daa- 1 38.61442398 -110.0617946 4,611 7,225 185

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383652110034001&agency_cd=USGS&

USGS 383655109364001 (D-25-21)21bdc- 1 38.61525899 -109.6117849 4,080 172 172

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383655109364001&agency_cd=USGS&

USGS 383655109425501* (D-25-20)21dbb- 1 38.61525825 -109.7159526 5,080 NR NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383655109425501&agency_cd=USGS&

USGS 383656109493301* (D-25-19)21db 38.61553557 -109.8265104 NR 910 910

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383656109493301&agency_cd=USGS&

USGS 383658109360601 (D-25-21)28dab- 1 38.61609238 -109.6023404 4,080 130 130

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383658109360601&agency_cd=USGS&

USGS 383701109370001 (D-25-21)20add- 2 38.61692559 -109.6173406 4,120 123 123

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383701109370001&agency_cd=USGS&

USGS 383701109434301* (D-25-21)20add- 1 38.61692479 -109.729286 4,120 117 117

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383701109434301&agency_cd=USGS&

USGS 383704109232901 (D-25-23)20adb- 1 38.61776164 -109.3920608 5,020 230 230

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383704109232901&agency_cd=USGS&

USGS 383720109294700 (D-26-22)21bba- 1 38.62220421 -109.4970618 5,300 67 67

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383720109294700&agency_cd=USGS&

USGS 383752109234001 (D-25-23)20aba- 1 38.63109482 -109.3951165 4,920 175 175

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383752109234001&agency_cd=USGS&

USGS 383815109250501 (D-25-23)18baa- 1 38.63748323 -109.4187279 4,800 166 166

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383815109250501&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 59

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 383818109233801 (D-25-23) 8dcd- 1 38.638317 -109.394561 4,750 260 260 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383818109233801&agency_cd=USGS&

USGS 383818109233802 (D-25-23) 8dcd- 2 38.638317 -109.394561 4,750 85 85 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383818109233802&agency_cd=USGS&

USGS 383826109242701 (D-25-23) 8adb- 1 38.64053895 -109.4081723 4,640 126 126 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383826109242701&agency_cd=USGS&

USGS 383827109242701 (D-25-23) 7dda- 2 38.64081673 -109.4081723 4,640 105 105 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383827109242701&agency_cd=USGS&

USGS 383827109242801 (D-25-23) 7dda- 3 38.64081672 -109.40845 4,640 217 203 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383827109242801&agency_cd=USGS&

USGS 383828109232501 (D-25-23) 8dda- 1 38.64109482 -109.3909499 4,770 156 156 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383828109232501&agency_cd=USGS&

USGS 383828109242601 (D-25-23) 7dda- 1 38.64109451 -109.4078945 4,640 102 102 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383828109242601&agency_cd=USGS&

USGS 383829109310801 (D-25-22) 7dad- 1 38.64137044 -109.5195622 4,560 139 139 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383829109310801&agency_cd=USGS&

USGS 383842109235401 (D-25-23) 8bdc- 1 38.64498353 -109.3990055 4,660 NR NR Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383842109235401&agency_cd=USGS&

USGS 383852109232901 (D-25-23) 8adb- 2 38.64776141 -109.3920611 4,750 140 116 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383852109232901&agency_cd=USGS&

USGS 383855109253701 (D-25-22)12add- 1 38.64859409 -109.427617 4,600 233 233 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383855109253701&agency_cd=USGS&

USGS 383856109253901 (D-25-22)12aad- 1 38.64887185 -109.4281725 4,600 233 233 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=383856109253901&agency_cd=USGS&

USGS 383902109254401 (D-25-22)12aab- 1 38.65053848 -109.4295614 4,560 198 198 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383902109254401&agency_cd=USGS&

USGS 383912109190001 (D-25-23) 1ddd- 1 38.65331832 -109.3173382 5,180 100 100 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=383912109190001&agency_cd=USGS&

USGS 384014109292200* (D-26-22)22cdc- 1 38.67053714 -109.4901178 4,595 197 197 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384014109292200&agency_cd=USGS&

USGS 384025108580001 4 38.67359578 -108.9673306 NR NR NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384025108580001&agency_cd=USGS&

USGS 384026108575701 NB05101922ADB 38.67387355 -108.9664972 4,595 NR 140 Y Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384026108575701&agency_cd=USGS&

USGS 384026108584701 NB05101922BCB 38.67387355 -108.9803866 4,720 NR 100 N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384026108584701&agency_cd=USGS&

USGS 384040108583501 2 38.67776237 -108.9770532 NR NR NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384040108583501&agency_cd=USGS&

USGS 384046109412601* (D-24-20)34daa- 1 38.67942373 -109.6912311 4,540 315 315 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384046109412601&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
60 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 384055108583101 No information in the station header file dup 1 38.68192896 -108.975942 NR NR NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384055108583101&agency_cd=USGS&

USGS 384055108583201 3 38.68192896 -108.9762199 NR NR NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384055108583201&agency_cd=USGS&

USGS 384055109421701* (D-24-20)23cda- 1 38.68192353 -109.7053979 4,400 NR NR

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384055109421701&agency_cd=USGS&

USGS 384112109462201* (D-24-19)36bba- 1 38.68664511 -109.7734546 4,880 NR NR

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384112109462201&agency_cd=USGS&

USGS 384137109525101 (D-24-18)25dba- 1 38.6935892 -109.8815129 5,300 604 604

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384137109525101&agency_cd=USGS&

USGS 384149109400901* (D-24-20)25bca- 1 38.69690278 -109.6692917 4,351 880 NR

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384149109400901&agency_cd=USGS&

USGS 384149109400902* (D-24-20)25bca- 2 38.69690278 -109.6692917 4,351 880 NR

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384149109400902&agency_cd=USGS&

USGS 384205109221001 (D-24-23)22cbb- 1 38.70137256 -109.3701167 4,200 62 62

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384205109221001&agency_cd=USGS&

USGS 384211109452401* (D-24-20)19ccd- 1 38.70303363 -109.7573433 4,880 665 665

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384211109452401&agency_cd=USGS&

USGS 384228109454401* (D-24-20)19caa- 1 38.70775573 -109.7628991 4,680 NR NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384228109454401&agency_cd=USGS&

USGS 384247109355501 (D-25-21)35ddc- 1 38.5794265 -109.5676174 3,920 NR NR

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384247109355501&agency_cd=USGS&

USGS 384249109420201* (D-24-20)22bad- 1 38.71358955 -109.7012317 4,410 NR 52

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384249109420201&agency_cd=USGS&

USGS 384251109420101* (D-24-20)22bac- 2 38.7141451 -109.7009539 4,410 70 70

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384251109420101&agency_cd=USGS&

USGS 384441109491401* (D-24-19) 9aba- 1 38.74469922 -109.8212344 4,800 285 285

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384441109491401&agency_cd=USGS&

USGS 384447109201701 (D-24-23) 2acd- 1 38.74637294 -109.3387277 4,160 137 137

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384447109201701&agency_cd=USGS&

USGS 384531108470501 SC01510301ACC 38.75859449 -108.7853797 6,230 NR 47

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384531108470501&agency_cd=USGS&

USGS 384632108522501 5 38.77553894 -108.874272 NR NR NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384632108522501&agency_cd=USGS&

USGS 384654109353601 (D-23-21)27bcd- 1 38.78164515 -109.5940091 5,200 900 900

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384654109353601&agency_cd=USGS&

USGS 384750109122701 (D-23-24)13aab- 1 38.79738889 -109.2061667 4,195 402 402

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=384750109122701&agency_cd=USGS&

USGS 384832110021701* (D-23-17)15cba- 1 38.80886421 -110.0387405 4,280 9,523 2,896

N

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384832110021701&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 61

[Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] 

Source

agency

Site

number Station Name

Latitude,

in decimal

degrees

Longitude,

in decimal

degrees

Land 

surface 

altitude, 

in feet

Hole 

depth, 

in feet below

land 

surface

Well 

depth, in 

feet below land 

surface

Waterlevel data? 

(Y/N)

Field parameters 

(temperature, pH, 

Sp. C.)? 

(Y/N)

Major 

ions? (Y/N)

Trace metals? (Y/N) Link to NWIS website

USGS 384832110035801* (D-23-17)17dbc- 1 38.80886427 -110.0667971 4,280 8,764 8,748 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384832110035801&agency_cd=USGS&

USGS 384855110034101* (D-23-17)17ada- 1 38.81525301 -110.0620748 4,340 8,876 8,811 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=384855110034101&agency_cd=USGS&

USGS 385033109440101* (D-23-20) 5bcb- 1 38.84247443 -109.7342892 4,464 529 491 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385033109440101&agency_cd=USGS&

USGS 385034109435901* (D-23-20) 5bca- 1 38.84275221 -109.7337337 4,464 420 420 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385034109435901&agency_cd=USGS&

USGS 385035109441401* (D-23-20) 5bbb- 2 38.8430299 -109.7379004 4,469 450 448 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385035109441401&agency_cd=USGS&

USGS 385036109441501* (D-23-20) 5bbb- 1 38.84330767 -109.7381782 4,469 573 524 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385036109441501&agency_cd=USGS&

USGS 385037109440901* (D-23-20) 5bbc- 1 38.84358547 -109.7365115 4,466 527 486 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385037109440901&agency_cd=USGS&

USGS 385038109440601* (D-23-20) 5bbc- 2 38.84386325 -109.7356782 4,466 438 436 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385038109440601&agency_cd=USGS&

USGS 385120109174401 (D-22-24)29cbc- 1 38.85554114 -109.2962271 4,150 160 160 Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385120109174401&agency_cd=USGS&

USGS 385123110020101 (D-22-17)34bda- 1 38.85636307 -110.0342963 4,320 10,293 2,896 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385123110020101&agency_cd=USGS&

USGS 385153109232701 (D-22-23)29ada- 1 38.86470461 -109.3915068 4,380 NR NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385153109232701&agency_cd=USGS&

USGS 385230110064401 (D-22-16)25bbc- 1 38.87497407 -110.1129109 4,120 9,508 2,896 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385230110064401&agency_cd=USGS&

USGS 385554110074701 (D-22-16) 2bbd- 1 38.93163963 -110.1304124 4,067 5,896 2,896 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385554110074701&agency_cd=USGS&

USGS 385616109244701 (D-21-23)31acc- 1 38.93775892 -109.41373 4,445 NR NR Y N N N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385616109244701&agency_cd=USGS&

USGS 385619110080601 (D-21-16)34dda- 1 38.93858397 -110.1356905 4,056 2,627 905 Y Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385619110080601&agency_cd=USGS&

USGS 385732110002201 (D-21-17)26adc- 1 38.95886044 -110.0067958 4,470 11,895 905 N Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385732110002201&agency_cd=USGS&

USGS 385736108454901 046 KROFT 38.95998298 -108.7642671 NR NR NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385736108454901&agency_cd=USGS&

USGS 385751108522001 Potholes rec site 38.9641505 -108.8728822 NR NR NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385751108522001&agency_cd=USGS&

USGS 385913108451501 047 HUDSON 38.98692729 -108.7548222 NR NR NR N Y Y Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385913108451501&agency_cd=USGS&

USGS 385913109441801 (D-21-20)17bcc- 1 38.98691446 -109.7390132 5,200 2,896 2,896 Y Y Y N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385913109441801&agency_cd=USGS&

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
62 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area [Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83). Vertical coordinate information is referenced to the National Geodetic Vertical Datum of 1929 (NGVD 29). Abbreviations: Y, yes; N, no; Sp. C., specific conductance; NWIS, National Water Information System; USGS, U.S. Geological Survey; NR, not reported] Source agency Site number Station Name Latitude, in decimal degrees Longitude, in decimal degrees Land surface altitude, in feet Hole depth, in feet below land surface Well depth, in feet be- low land surface Water- level data? (Y/N) Field pa- rameters (tempera- ture, pH, Sp. C.)? (Y/N) Major ions? (Y/N) Trace met- als? (Y/N) Link to NWIS website USGS 385939108442601 045 FULLER 38.9941494 -108.7412106 NR NR NR

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385939108442601&agency_cd=USGS&

USGS 385947110083301 (D-21-16)10dcb- 1 Wel 38.99644444 -110.1425833 4,060 NR NR

Y

Y

Y

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385947110083301&agency_cd=USGS&

USGS 385948110083601 (D-21-16)10cda- 1 Wel 38.99661111 -110.1431944 4,060 NR 12

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385948110083601&agency_cd=USGS&

USGS 385952110084401 (D-21-16)10cdb- 1 Wel 38.99763889 -110.1456389 4,060 8 8

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=385952110084401&agency_cd=USGS&

USGS 385958110082401 (D-21-16)10dbd- 1 Wel 38.99952778 -110.1399167 4,060 NR 10

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385958110082401&agency_cd=USGS&

USGS 385958110082601 (D-21-16)10dbd- 2 Wel 38.99947222 -110.1404167 4,060 NR 12

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=385958110082601&agency_cd=USGS&

USGS 390035109204701 (D-21-23) 2bcd- 1 39.00970587 -109.347062 4,542 NR NR

Y

N

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=390035109204701&agency_cd=USGS&

USGS 390222110083101 (D-20-16)32adc- 1 Wel 39.03958333 -110.1418611 4,060 11 11

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=390222110083101&agency_cd=USGS&

USGS 390222110084101 (D-20-16)32acd- 1 Wel 39.03955556 -110.1447222 4,060 9 9

Y

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=390222110084101&agency_cd=USGS&

USGS 390224110084801 (D-20-16)32acc- 1 Wel 39.03986111 -110.1466667 4,060 13 13

Y

Y

N

N http://waterdata.usgs.gov/nwis/inventory/?site_

no=390224110084801&agency_cd=USGS&

USGS 390513109060601 (D-20-25)12bab- 1 39.08688889 -109.1018333 4,310 325 325

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=390513109060601&agency_cd=USGS&

USGS 390710109370301 (D-19-21)29dbc- 1 39.11941518 -109.6181823 6,420 NR 4,760

N

Y

Y

Y http://waterdata.usgs.gov/nwis/inventory/?site_

no=390710109370301&agency_cd=USGS&

* Denotes sites that are loacted in the Moab Master Leasing Plan area.

Table 5. Well sites with water-level and (or) water-quality data as reported in the National Water Information System database, within the study area, Utah and Colorado.—Continued 
Groundwater 63

Figure 10. Mean water-level altitude for wells reported in the National Water Information System database within the study area. COLORADO UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY DOLORES COUNTY

MONTROSE COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book

Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Moab Master Leasing Plan area

National Park

Study area boundary

Mean water-level altitude, in 

feet

2,500 to 4,000

4,001 to 4,500

4,501 to 5,000

5,001 to 5,500

5,501 to 6,000

6,001 to 6,500

6,501 to 8,500

EXPLANATION
64 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Figure 11. Location of wells within the study area that have long-term water-level records reported in the National Water Information 

System database. Corresponding hydrographs are shown in figure 12.

COLORADO

UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY DOLORES COUNTY

MONTROSE COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book

Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Moab Master Leasing Plan area

National Park

Study area boundary

Observation well with 

corresponding hydrograph, 

color coded by aquifer of 

completion— Number refers to 

hydrograph in figure 12

Unconsolidated aquifer

Glen Canyon Group aquifer

Aquifer of completion unknown

EXPLANATION

20

1

2

3

4,5 6

7

8

9

10

11

12

13 14

15

16

17

18

19

20
Groundwater 65

Figure 12. Hydrographs of wells with long-term water-level records within the study area. Depth to groundwater below land surface, in feet 1935 1940 1945 1950 1955 1960 1965 1970 1975 1980 1985

199019952000200520102015

4

5

6

7

8

9

10

11

12

13

14

10

15

20

25

30

35

40

45

9

10

11

12

13

14

15

12

14

16

18

20

22

24

26

28

10

11

12

13

14

15

16

17

18

19

20

21

22

23

Site number: 383423109330501

Well depth: 84 feet

Land surface altitude: 4,025 feet

Aquifer of completion: Unconsolidated aquifer

Site number: 383403109330301

Well depth: 56 feet

Land surface altitude: 4,025 feet

Aquifer of completion: Unconsolidated aquifer

Site number: 384247109355501

Well depth: unknown

Land surface altitude: 3,920 feet

Aquifer of completion: unknown

Site number: 383539109340901

Well depth: 55 feet

Land surface altitude: 3,920 feet

Aquifer of completion: Unconsolidated aquifer

Site number: 384251109420101

Well depth: 70 feet

Land surface altitude: 4,410 feet

Aquifer of completion: Unconsolidated aquifer

1

2

3

4

5

Numbers to the right of the hydrographs correspond to the well numbers in figure 11. 
66 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Figure 12. Hydrographs of wells with long-term water-level records within the study area.—Continued Depth to groundwater below land surface, in feet 1935 1940 1945 1950 1955 1960 1965 1970 1975 1980 1985 1990 1995

2000200520102015

6

7

Site number: 383202109285101

Well depth: 100 feet

Land surface altitude: 4,580 feet

Aquifer of completion: Glen Canyon Group aquifer

Site number: 383133109293901

Well depth: 125 feet

Land surface altitude: 4,600 feet

Aquifer of completion: Unconsolidated aquifer

15

20

25

30

35

40

10

20

30

40

50

60

8

70

5

10

15

20

25

30

35

40

45

10

20

30

40

50

60

70

80

Site number: 383158109282401

Well depth: 450 feet

Land surface altitude: 4,640 feet

Aquifer of completion: Glen Canyon Group aquifer

Site number: 383109109285501

Well depth: 300 feet

Land surface altitude: 4,610 feet

Aquifer of completion: unknown

9

10 10

12

14

16

18

20

22

24

Site number: 383129109284001

Well depth: 110 feet

Land surface altitude: 4,600 feet

Aquifer of completion: Glen Canyon Group aquifer

Numbers to the right of the hydrographs correspond to the well numbers in figure 11. 
Groundwater 67

Figure 12. Hydrographs of wells with long-term water-level records within the study area.—Continued Depth to groundwater below land surface, in feet

40

45

50

55

60

65

70

30

40

50

60

70

80

90

100

105

110

115

120

125

130

135

140

90

95

100

105

110

115

0

2

4

6

8

10

12

14

16

18

20

Site number: 381800109153001

Well depth: 186 feet

Land surface altitude: 6,820 feet

Aquifer of completion: Unconsolidated aquifer

Site number: 381829109173701

Well depth: unknown

Land surface altitude: 6,650 feet

Aquifer of completion: unknown

Site number: 381806109185801

Well depth: 620 feet

Land surface altitude: 6,570 feet

Aquifer of completion: unknown

Site number: 383030109274901

Well depth: 210 feet

Land surface altitude: 4,720 feet

Aquifer of completion: unkown

Site number: 383118109283301

Well depth: 110 feet

Land surface altitude: 4,560 feet

Aquifer of completion: unknown

19351940194519501955196019651970197519801985199019952000200520102015

15

14

13

12

11

Numbers to the right of the hydrographs correspond to the well numbers in figure 11. 
68 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Figure 12. Hydrographs of wells with long-term water-level records within the study area.—Continued Depth to groundwater below land surface, in feet

16

17

18

19

Site number: 381322109235801

Well depth: 133 feet

Land surface altitude: 5,670 feet

Aquifer of completion: unknown

Site number: 380435109212901

Well depth: 154 feet

Land surface altitude: 6,020 feet

Aquifer of completion: unknown

20

220

225

230

235

240

245

66

67

68

69

70

71

72

73

74

75

76

27

29

31

33

35

37

39

41

99

100

101

102

103

104

63

64

65

66

67

68

69

70

Site number: 381502109313101

Well depth: 325 feet

Land surface altitude: 6,000 feet

Aquifer of completion: unknown

Site number: 381329109240001

Well depth: 178 feet

Land surface altitude: 5,690 feet

Aquifer of completion: unknown

Site number: 380425109204201

Well depth: 164 feet

Land surface altitude: 5,980 feet

Aquifer of completion: unknown

19351940194519501955196019651970197519801985199019952000200520102015

Numbers to the right of the hydrographs correspond to the well numbers in figure 11. 
Groundwater 69

Potential Recharge Areas

Potential recharge areas are determined based on climate, 

geology, topography, and hydrology. The quantity of recharge 

depends on several factors, including the amount and timing 

of precipitation, hydrologic properties of soils and unconsolidated deposits, and surface exposures and fracturing of 

consolidated rocks. Precipitation is the dominant source of 

recharge to aquifers within the study area. Recharge to consolidated-rock aquifers occurs during prolonged wet surface 

conditions and, therefore, winter precipitation generally determines the amount of water that will recharge these aquifers 

(Hood and Patterson, 1984; Freethey and Cordy, 1991; Steiger 

and Susong, 1997). Winter precipitation within the study area 

generally is in the form of snow, which melts slowly, extending the period of runoff and increasing infiltration (Danielson 

and Hood, 1984; Steiger and Susong, 1997). Danielson and 

Hood (1984) showed that areas with more than 8 in. of winter 

(October to April) precipitation likely contribute recharge to 

aquifers. Hydrologic properties of soils and unconsolidated 

deposits control how rapidly water infiltrates the surface and 

recharges underlying aquifers. Generally, sandy soils, which 

are common throughout the study area, facilitate faster infiltration rates than clay-rich soils. Areas covered with sandy soils 

enhance recharge by providing storage where precipitation can 

quickly infiltrate into underlying aquifers instead of running 

off into stream channels (Steiger and Susong, 1997). Fractured areas also enhance recharge as the near-surface fractures 

provide pathways for water to rapidly infiltrate and recharge 

the aquifer.

Datasets of precipitation and soil characteristics were used 

to determine potential recharge areas within the study area. 

Average annual winter precipitation was calculated using the 

30-year (1971–2000) average monthly precipitation 800-m 

grids from the Parameter-elevation Regressions on Independent Slopes Model (PRISM) climate mapping system (Daly 

and others, 1994). Soil characteristics were identified using the 

1:250,000-scale State Soil Geographic (STATSGO) database 

(Schwarz and Alexander, 1995).

The hydrologic soil characteristics as defined in the 

STATSGO database (Schwarz and Alexander, 1995) and areas 

where mean annual winter precipitation is greater than 8 in. 

are shown in figure 13. The descriptions for the four hydrologic soil-characteristic codes from the STATSGO database 

are as follows (Schwarz and Alexander, 1995):

1. High infiltration rates, deep soils, well-drained to 

excessively-drained sands and gravels.

2. Moderate infiltration rates, deep to moderately deep, 

moderately well- and well-drained soils with moderately coarse textures.

3. Slow infiltration rates, soils with layers impeding 

downward movement of water, or soils with moderately fine or fine textures.

4. Very slow infiltration rates, soils are clayey, have a 

high water table, or are shallow to an impervious 

layer (includes some areas denoted as pits, rock outcrops, terrace escarpments, and urban lands that were 

not previously assigned a hydrologic characteristics 

code in the original state databases).

Recharge is enhanced in areas where winter precipitation is 

greater than 8 in., including the upland areas of the Abajo 

and La Sal Mountains, the Uncompahgre Plateau, and the 

Book Cliffs (fig. 13). Recharge also is likely to be enhanced 

in areas where the soil-characteristic code is 1 or 2, which 

denotes high–to-moderate infiltration rates through the soil. 

These areas are mainly in the valleys that are covered with 

unconsolidated deposits (for example, Moab-Spanish and 

Castle Valleys), in areas along some of the larger streams (for 

example, Indian Creek and the Colorado River), and in many 

of the upland areas, such as the Abajo and La Sal Mountains. 

Although many of the sandstone outcrops within the study 

area are classified with a low soil-characteristic code of 4, 

recharge to these units locally will be enhanced in areas where 

the outcrops are highly fractured.

Groundwater Budget

Limited data are available to quantitatively estimate the 

large-scale regional groundwater budget for the study area. 

Some previous studies, however, have estimated groundwater 

budgets for areas within and adjacent to the current study area, 

namely Moab-Spanish Valley and parts of the Paradox Basin 

(fig. 14). Various components of the groundwater budget for 

Moab-Spanish Valley have been estimated in several previous 

studies (Sumsion, 1971; Eychaner, 1977; Kovacs, 2000; Gardner, 2004; Lowe and others, 2007). Rush and others (1982) 

provide an estimated groundwater budget for the upper aquifer 

system (aquifers above the Upper Paleozoic Confining Unit) 

for the Green River-Moab area of the Paradox Basin. Likewise, Weir and others (1983) provide an estimated groundwater budget for the upper aquifer system for the Moab-Monticello area of the Paradox Basin. These two studies cover a 

large part of the current study area, however, they extend only 

as far east as the crest of the La Sal Mountains, and include 

areas to the west of the Green River that are outside the current study area. Estimates of groundwater-budget components 

for Moab-Spanish Valley and parts of the Paradox Basin are 

summarized in table 6.

Recharge

Most groundwater recharge to the study area originates as 

infiltration of precipitation from upland areas where precipitation quantities are the greatest (Rush and others, 1982; Weir 

and others, 1983; Blanchard, 1990; Freethey and Cordy, 1991; 

Steiger and Susong, 1997; Eisinger and Lowe, 1999). Additional groundwater recharge occurs as seepage from streams 

and irrigation water (Sumsion, 1971; Weir and others, 1983; 
70 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Figure 13. Distribution of hydrologic soil characteristics and areas with more than 8 inches of winter precipitation within the study 

area.

COLORADO

UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY

DOLORES COUNTY

MONTROSE COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book

Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Castle Valley

Moab-Spanish Valley

Hydrologic soil characteristic 

code from the State Soil Geographic (STATSGO) Database 

(Schwarz and Alexander, 1995)

1 High infiltration rates

2 Moderate infiltration rates

3 Slow infiltration rates

4 Very slow infiltration rates

Area with more than 8 inches of 

winter precipitation

Moab Master Leasing Plan area 

boundary

National Park

Study area boundary

EXPLANATION
Groundwater 71

Figure 14. Locations of previous groundwater studies with estimated groundwater-budget components. COLORADO UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY DOLORES COUNTY

MONTROSE COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book

Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Moab Master Leasing 

Plan area

National Park

Study area boundary

Moab-Spanish Valley 

study area boundary

Paradox Basin study 

area boundary

EXPLANATION
72 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Table 6. Summary of previously reported estimates of groundwater-budget components for Moab-Spanish Valley and parts of the 

Paradox Basin.

[All values reported in acre-feet per year, rounded to two significant digits]

Moab-Spanish Valley

Publication or source of data

Sumsion

(1971)

Eychaner

(1977)1

Kovacs 

(2000)2

Gardner

(2004)3

Lowe and 

others

(2007)1

Total

Recharge

Precipitation

Inflow (from infiltration of precipitation over La Sal Mountains and 

adjacent upland areas)

14,000 13,000 13,000 — 13,000 13,000 to 14,000

Infiltration of direct precipitation over valley — 560 730 — 730 560 to 730

Seepage from Ken's Lake — — 3,300 — 3,200 3,200 to 3,300

Infiltration of water from Pack Creek — 330 — — — 330

Total recharge 14,000 14,000 17,000 — 17,000 14,000 to 17,000

Discharge

Seepage to streams (Mill and Pack Creeks) — 1,300 1,200 — 1,100 1,100 to 1,300

Evapotranspiration (Scott M. Matheson Wetlands Preserve) 3,000 2,200 — 2,500 to 3,700 — 2,200 to 3,700

Withdrawals from wells/springs (net) 3,300 2,000 6,400 — 6,400 2,000 to 6,4004

Seepage to Colorado River 8,000 8,300 9,5005 110 to 1,500 9,2005 110 to 9,500

Total discharge 14,000 14,000 17,000 — 17,000 14,000 to 17,000

Paradox Basin

Publication or source of data

Rush and others 

(1982) Green 

River-Moab 

Area

Weir and others 

(1983) MoabMonticello 

Area

Total

Recharge

Infiltration of precipitation and runoff 16,000 120,000 140,000

Infiltration of regional streamflow (Green and Colorado Rivers) 0 0 0

Subsurface inflow unknown unknown unknown

Total recharge 110,0006 120,000 230,000

Discharge

Evapotranspiration 24,000 32,000 56,000

Springflow 410 4,100 4,500

Seepage to regional streams (Green and Colorado Rivers) 81,000 200,000 280,000

Withdrawals from wells minor 4,900 4,900

Subsurface outflow very small probably small small

Total discharge 110,000 240,000 350,000

1

Estimates are from numerical model results.

2

As reported in Lowe and others (2007), p. 28 and Table 5.

3

Estimates for Scott M. Matheson Wetlands Preserve only.

4

Difference due to increased well withdrawals in the late 1990s (Loughlin Water Associates, LLC, 2010).

5

Estimate may include evapotranspiration from Scott M. Matheson Wetlands Preserve, but unclear in the reports.

6

In report, total recharge was assumed to equal total discharge. 
Groundwater 73

Freethey and Cordy, 1991; Steiger and Susong, 1997; Eisinger 

and Lowe, 1999) and as subsurface inflow, both between 

aquifers (Sumsion, 1971; Eisinger and Lowe, 1999) and 

as lateral movement into the study area across its defined 

boundaries (Rush and others, 1982; Weir and others, 1983; 

Freethey and Cordy, 1991). Previous estimates of total groundwater recharge to Moab-Spanish Valley range from 14,000 

to 17,000 acre-ft/yr (Sumsion, 1971; Eychaner, 1977; Downs 

and Kovacs, 2000; Lowe and others, 2007; table 6). Previous 

estimates of total groundwater recharge to the upper aquifer 

system of the Paradox Basin are about 230,000 acre-ft/yr 

(Rush and others, 1982; Weir and others, 1983; table 6).

Direct Infiltration of Precipitation

The La Sal and Abajo Mountains and adjacent upland areas 

are a dominant source of recharge to the primary consolidatedrock aquifers of the upper groundwater system because the 

talus covered, fractured, and upturned high mountain slopes 

readily absorb snowmelt and precipitation (Weir and others, 

1983; Blanchard, 1990). The Book Cliffs and areas to the 

north of the study area also receive a substantial amount of 

precipitation (about 15.7–27.6 in/yr) and provide a considerable source of groundwater recharge to the northern parts of 

the study area (Rush and others, 1982). Likewise, the Uncompahgre Plateau receives a substantial amount of precipitation (more than 8 in/yr of winter precipitation), and provides 

a source of groundwater recharge to the eastern part of the 

study area (Freethey and Cordy, 1991). Recharge from direct 

infiltration of precipitation to the consolidated-rock aquifers 

is enhanced where the rocks are (1) highly fractured, such as 

occurs along the flanks of the Abajo and La Sal Mountains, 

or along the margins of the collapsed salt anticlines, such as 

Moab-Spanish Valley and Castle Valley (Steiger and Susong, 

1997; Lowe and others, 2007); or (2) where the rock is covered by shallow deposits of sandy soil that provide storage 

where precipitation can quickly infiltrate and then move into 

the underlying rock rather than run off into stream channels (Blanchard, 1990; Freethey and Cordy, 1991; Steiger 

and Susong, 1997). Direct infiltration of precipitation also 

accounts for a small part of recharge to the unconsolidated 

(valley-fill) aquifers (Eychaner, 1977; Steiger and Susong, 

1997; Lowe and others, 2007).

Seepage From Streams and Irrigation Water 

Recharge to the consolidated-rock aquifers of the upper 

groundwater system also occurs along stream channels where 

deep infiltration is most likely (Blanchard, 1990; Weir and 

others, 1983; Freethey and Cordy, 1991; Steiger and Susong, 

1997; Eisinger and Lowe, 1999). Seepage from streams and 

stream-derived irrigation water also is an important source of 

recharge to the unconsolidated aquifers in Moab-Spanish and 

Castle Valleys (Sumsion, 1971; Steiger and Susong, 1997; 

Eisinger and Lowe, 1999). In Moab-Spanish Valley, groundwater recharge occurs to the unconsolidated aquifers from 

the infiltration of water diverted from Pack Creek used as 

irrigation (Sumsion, 1971; Eychaner, 1977), and as seepage 

of water from Ken’s Lake (Kovacs, 2000; Lowe and others, 

2007), which is sourced from a diversion of Mill Creek. The 

primary source of recharge to the unconsolidated aquifer of 

Castle Valley is from stream seepage and infiltration of Castle 

and Placer Creeks (Eisinger and Lowe, 1999).

Subsurface Inflow 

Subsurface inflow of groundwater across the study-area 

boundary is the primary source of groundwater recharge to the 

Lower Paleozoic aquifer system (Rush and others, 1982; Weir 

and others, 1983; Freethey and Cordy, 1991). Recharge to the 

aquifer is from precipitation on outcrops outside of the study 

area (Rush and others, 1982; Weir and others, 1983). The lowpermeability evaporite deposits of the Paradox Member of the 

Hermosa Formation (Upper Paleozoic confining unit) likely 

limit or prevent vertical flow and, therefore, recharge from the 

upper aquifer system to the Lower Paleozoic aquifer system. 

Recharge from subsurface inflow of groundwater across the 

study-area boundary is likely very minor for the upper aquifer 

system within the study area (Rush and others, 1982; Weir and 

others, 1983).

Recharge from the subsurface inflow of groundwater 

between aquifers accounts for most of the groundwater 

recharge to Moab-Spanish Valley. Previous studies in MoabSpanish Valley estimated that recharge to the unconsolidated 

aquifer is predominantly from subsurface inflow of groundwater from the the Glen Canyon Group aquifer along the 

northeast side of the valley. Sumsion (1971) assumed that 

groundwater recharge to the valley through the Glen Canyon 

Group aquifer equaled the sum of discharge to the Colorado 

River, evapotranspiration within the Scott M. Matheson 

Wetlands Preserve, discharge to springs, and well withdrawals. Recharge estimates from subsequent studies by Eychaner 

(1977), Kovacs (2000), and Lowe and others (2007) were 

based on Sumsion’s estimates. Gardner (2004) concluded that 

Sumsion (1971) may have significantly overestimated discharge to the Colorado River and, consequently, recharge from 

subsurface inflow to Moab-Spanish Valley. Smaller quantities of groundwater recharge to the unconsolidated aquifer in 

Spanish Valley also occur as subsurface inflow from adjacent, 

fractured consolidated-rock aquifers, specifically from the 

Cutler Formation aquifer along the southwest side of the valley (Snyder, 1996; Eisinger and Lowe, 1999). Recharge from 

groundwater inflow between aquifers also can occur between 

the consolidated-rock aquifers of the upper aquifer system, 

where intervening confining units are missing, and vertical 

groundwater gradients are present (Rush and others, 1982; 

Weir and others, 1983; Blanchard, 1990; Freethey and Cordy, 

1991).
74 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Discharge

Groundwater discharge occurs as seepage to streams 

(including the Colorado and Green Rivers), evapotranspiration, to springs and seeps, well withdrawals (Sumsion, 1971; 

Blanchard, 1990; Rush and others, 1982; Weir and others, 

1983; Freethey and Cordy, 1991); and as subsurface outflow, 

both between aquifers (Sumsion, 1971; Eisinger and Lowe, 

1999) and as lateral movement into the study area across its 

defined boundaries (Rush and others, 1982; Weir and others, 1983; Freethey and Cordy, 1991). Previous estimates of 

total groundwater discharge from Moab-Spanish Valley range 

from 14,000 to 17,000 acre-ft/yr (Sumsion, 1971; Eychaner, 

1977; Kovacs, 2000; Lowe and others, 2007; table 6). Previous estimates of total groundwater discharge from the upper 

aquifer system of the Paradox Basin are about 350,000 acre-ft/

yr (Rush and others, 1982; Weir and others, 1983; table 6).

Seepage to Streams

The Green and Colorado Rivers are the terminal groundwater-discharge locations for water within the study area, and 

discharge to these rivers represents the largest component 

of groundwater discharge (table 6). Rush and others (1982) 

estimated groundwater discharge to the Green River between 

Green River, Utah, and the confluence with the Colorado 

River of approximately 823 acre-ft/yr per mile of underlying aquifer, and groundwater discharge to the Colorado River 

between Cisco, Utah, and the confluence with the Green River 

of approximately 3,705 acre-ft/yr per mile of underlying aquifer. The length of underlying aquifer in this study was calculated as the straight-line distance of a river segment (Rush and 

others, 1982, table 1). Based on these rates, Rush and others 

(1982) and Weir and others (1983) estimated groundwater 

discharge to the Green and Colorado Rivers of about 280,000 

acre-ft/yr; these estimates, however, include discharge from 

aquifers on the northwest side of the Green River, which is 

outside the current study area, and excludes discharge to the 

Colorado River upstream of the Dolores River (fig. 14).

Groundwater discharge directly to the Green and Colorado 

Rivers for the study area can be estimated by multiplying the 

aquifer distance (length of underlying aquifer) by the rates calculated in Rush and others (1982). Using the assumption that 

the approximate aquifer distance that each river crosses is the 

straight-line distance for a particular river segment (Rush and 

others, 1982, table 9), the aquifer distances that the Green and 

the Colorado Rivers cross within the study area are approximately 69 and 75 mi, respectively. Assuming that discharge on 

either side of the Green River is approximately equal (Rush 

and others, 1982), such that the discharge rate to the Green 

River is approximately 411.5 acre-ft/yr per mile (823 acre-ft/

yr per mile divided by 2), groundwater discharge to the Green 

River is about 28,000 acre-ft/yr. Groundwater discharge to the 

Colorado River is about 280,000 acre-ft/yr. 

There are only a few previously reported estimates of 

groundwater discharge for the other streams within the study 

area. Previously reported groundwater discharge estimates 

to Mill and Pack Creeks in Moab-Spanish Valley range from 

1,100 to 1,300 acre-ft/yr (Eychaner, 1977; Kovacs, 2000; 

Lowe and others, 2007). These estimates, however, are from 

numerical modeling results where the streams were simulated 

as drains. There is increased uncertainty in these estimates, 

therefore, because of uncertainty in the streambed conductances and geometries used in these models. Blanchard (1990) 

looked at the gains and losses of stream flow along the entire 

reaches of Mill Creek and North Fork of Mill Creek during 

October 1985 to determine areas and approximate quantities 

of groundwater recharge and discharge along the streams. 

Blanchard (1990) estimated that about 2,050–3,800 acre-ft/

yr of groundwater discharge to the two streams. A long period 

of relatively wet climatic conditions began in 1980 preceding 

the investigation (Burden and others, 2011) and, therefore, 

the estimates may exceed the long-term average. Warner and 

others (1985) measured baseflow in the Dolores River and 

its tributaries in January 1978. The baseflow was assumed to 

be entirely derived from groundwater discharge to the river, 

and measurements by Warner and others (1985) indicated that 

about 16,000 acre-ft/yr of groundwater discharged to the Dolores River and its tributaries that are located within the current 

study area. A long period of below-average precipitation preceded the study (Burden and others, 2011) and, therefore, the 

estimates may be much lower than the long-term average.

Evapotranspiration

Groundwater discharge to evapotranspiration by deeprooted phreatophytes can be substantial in areas adjacent to 

perennial streams and rivers. Typical regional phreatophytes 

located adjacent to the streams and rivers in the riparian areas 

are saltcedar, cottonwood, willow, and saltgrass (Rush and 

others, 1982; Weir and others, 1983; Eisinger and Lowe, 

1999). In locations with deeper water tables (as deep as 50 ft), 

saltbrush, greasewood, and rabbitbrush dominate (Rush and 

others, 1982; Weir and others, 1983; Eisinger and Lowe, 

1999). Rush and others (1982) and Weir and others (1983) 

estimated that 38 mi2 of the Paradox Basin were covered by 

phreatophytes, and nearly 15 of the 38 mi2 were located in 

river floodplains. The average groundwater discharge from the 

phreatophytes was estimated at 56,000 acre-ft/yr (Rush and 

others, 1982; Weir and others, 1983). Estimates of groundwater discharge by evapotranspiration in the Scott M. Matheson 

Wetlands Preserve of Moab-Spanish Valley range from 2,200 

to 3,700 acre-ft/yr (Sumsion, 1971; Eychaner, 1977; Gardner, 

2004). Evaporation of shallow soil moisture also contributes to 

groundwater discharge.

Springs and Seeps 

Numerous springs and seeps are present within the study 

area; however, previous studies have measured discharge at 
Groundwater 75

only a few of these sites. Discharge from 36 springs in the 

Spanish Valley area between July 1967 and August 1986 were 

measured or estimated by Sumsion (1971) and (or) Blanchard 

(1990). These discharge measurements and estimates ranged 

from 30 to 200 gal/min (48 to 323 acre-ft/yr) for springs in 

the unconsolidated aquifer; 200 gal/min (323 acre-ft/yr) for a 

spring in the Burro Canyon Formation of the Dakota aquifer; 0.25 gal/min (0.4 acre-ft/yr) for springs in the Salt Wash 

Member of the Morrison Formation of the Morrison aquifer; 0.5 to 11 gal/min (0.8 to 18 acre-ft/yr) for springs in the 

Entrada Sandstone of the Entrada aquifer; 0.3 to 390 gal/min 

(0.5 to 630 acre-ft/yr) for springs in the Navajo Sandstone, 

the Wingate Sandstone, and the Glen Canyon Group; 20 to 

43.5 gal/min (32 to 70 acre-ft/yr) for springs in undifferentiated Mesozoic rocks; and 2 gal/min (3 acre-ft/yr) for a spring 

in the Paradox Member of the Hermosa Formation. Eisinger 

and Lowe (1999) report that more than 200 perennial springs 

are present throughout the La Sal Mountains and are predominantly at altitudes greater than 7,500 ft. Rush and others 

(1982) and Weir and others (1983) report that there are at 

least 200 springs within the Paradox Basin study area, and 

discharge from the upper groundwater system to these springs 

is about 4,500 acre-ft/yr (table 6). As discussed in the section, “Springs”, mean spring-discharge measurements for 64 

springs reported in the NWIS database varies widely from less 

than 1 to 371 gal/min (less than 1.6 to 599 acre-ft/yr; fig. 9). 

The largest reported mean spring discharges from NWIS are 

in Moab-Spanish Valley, and on the western flank of the La 

Sal Mountains. Most springs within the study area have mean 

discharges of less than 10 gal/min (less than 16 acre-ft/yr).

Well Withdrawals and Groundwater Use

There is little data on the quantity of groundwater withdrawn from wells within the study area. The combined 

groundwater discharge to springs and well withdrawals in 

Moab-Spanish Valley is estimated to range from 2,000 to 

3,300 acre-ft/yr (Sumsion, 1971; Eychaner, 1977) for periods 

in the late 1960s and mid-1970s, and 6,400 acre-ft/yr (Kovacs, 

2000; Lowe and others, 2007) for the period after the late 

1990s. These estimates are net estimates, where 50 percent of 

the well withdrawals for irrigation are assumed to return to the 

groundwater system (Sumsion, 1971); therefore, only one-half 

of the estimated well withdrawals for irrigation are reported. 

Rush and others (1982) and Weir and others (1983) estimated 

groundwater discharge to well withdrawals of about 4,900 

acre-ft/yr for the Paradox Basin.

Well withdrawals throughout the study area have 

likely increased in recent years; however, no current 

well-withdrawal inventories are present within the study 

area, and the number of wells and withdrawal information are limited. The Utah Division of Water Rights 

(UT-DWR) Web site provides geographic information system datasets (dataset WRPOD downloaded from 

http://www.waterrights.utah.gov/gisinfo/wrcover.asp, accessed 

May 9, 2013) that can be queried to determine the number of 

water rights for wells (underground points of diversion) that 

have been “approved” or “perfected”. The total number of 

wells that fit these criteria in the study area is 4,960 (fig. 15). 

Most of each of these wells are categorized as having multiple 

uses. Of the total number of wells, 4,298 are categorized as 

being used for domestic supply, stock watering, and irrigation; 

67 are categorized as being used for municipal supplies; 19 are 

categorized as being used for mining; 280 are categorized as 

having a use of “other”; and 578 have no data regarding use.

Public water supplier data from the UT-DWR Web site 

(http://www.waterrights.utah.gov/cgi-bin/wuseview.exe, 

accessed May 22, 2013) report 2012 water-use estimates 

for the primary municipalities of Moab-Spanish Valley, 

Castle Valley, and Monticello. UT-DWR reports water use 

of 1,767 acre-ft from springs and 899 acre-ft from wells for 

Moab City Water, and 1,677 acre-ft from wells for the Grand 

County Conservancy District (primary public water suppliers 

for Moab-Spanish Valley); 716 acre-ft from wells for the Town 

of Castle Valley; and 554 acre-ft from springs and 29.5 acre-ft 

from wells for the Monticello Municipal Water System. Other 

UT-DWR 2012 public supply and water-use data within the 

study area is available for Arches National Park, which used 

9 acre-ft from wells; Archview Campground, which used 

6 acre-ft from wells; and Wilson Arch Water and Sewer Special Services District, which used 12 acre-ft from wells.

Subsurface Outflow

Subsurface outflow of groundwater across the study area 

boundary is the primary groundwater discharge from the 

Lower Paleozoic aquifer system (Rush and others, 1982; Weir 

and others, 1983; Freethey and Cordy, 1991). Discharge from 

the aquifer system primarily is to the Colorado River outside 

the study area (Rush and others, 1982). The evaporite deposits of the Paradox Member of the Hermosa Formation likely 

prevent vertical flow and, therefore, discharge to the upper 

aquifer system. Discharge as subsurface outflow of groundwater across the study area boundary likely is very minor for the 

upper aquifer system within the study area (Rush and others, 

1982; Weir and others, 1983). Limited data throughout the 

study area increase the difficulty in estimating subsurface flow 

to adjacent regions.

Discharge as groundwater outflow between aquifers can 

occur between the consolidated-rock aquifers of the upper 

aquifer system, where intervening confining units are absent 

and vertical groundwater gradients are present (Rush and others, 1982; Weir and others, 1983; Blanchard, 1990; Freethey 

and Cordy, 1991).
76 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Figure 15. Use of groundwater from well withdrawals throughout the study area as reported by the Utah Division of Water Rights. COLORADO UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY DOLORES COUNTY

MONTROSE COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book

Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Moab Master Leasing Plan area

National Park

Study area boundary

Groundwater use

No data

Domestic supply

Stock watering

Irrigation

Municipal supply

Mining

Other

Multiple (any combination of 

the above)

EXPLANATION
Groundwater 77

Groundwater Quality 

Although groundwater recharge typically is freshwater, 

total dissolved-solids concentrations increase along groundwater flowpaths with depth and (or) distance from the recharge 

area and can be used to evaluate water quality (Weir and 

others, 1983; Eisinger and Lowe, 1999). The quantity and 

solubility of the consolidated-rock and alluvial aquifer material has a direct influence on the dissolved-solids concentration 

(Rush and others, 1982). According to the Utah Department 

of Environmental Quality (UT DEQ; http://www.waterquality.

utah.gov/GroundWater/gwclasses.htm, accessed January 15, 

2013), groundwater quality is classified according to the total 

dissolved-solids concentration as pristine groundwater (Class 

IA, less than 500 mg/L), drinking-water quality groundwater 

(Class II, 500 to 3,000 mg/L), limited-use groundwater (Class 

III, 3,000 to 10,000 mg/L), and saline groundwater (Class IV, 

greater than 10,000 mg/L). Class IA and Class II groundwater 

is considered suitable for drinking water provided that individual “contaminant” or constituent concentrations do not exceed 

state and federal groundwater-quality and health standards. 

Class III groundwater typically is considered suitable for 

agricultural and industrial purposes, although Class IV may be 

used in evaporative processes to mine dissolved materials. UT 

DEQ groundwater quality standards for individual constituents 

are available on their Web site (http://www.waterquality.utah.

gov/GroundWater/gwstandards.htm).

Specific conductance also can be used to evaluate water 

quality, and essentially is a surrogate for total dissolved solids 

because specific conductance is dependent on the amount 

of dissolved solids in the water. As a general rule of thumb, 

specific conductance can be converted to total dissolved solids 

concentrations by multiplying the specific conductance by 

0.65 (Hem, 1985). Groundwater with specific-conductance 

values of less than about 4,500 μS/cm, therefore, would be 

classified as Class IA or Class II water and suitable as drinking 

water. The mean specific conductance for groundwater from 

wells and springs within the study area as reported in NWIS 

is shown in figure 16. Mean specific conductance for each 

site was calculated as the mean of all specific-conductance 

measurements made at the site; the number of measurements 

and period of record are highly variable from site to site. Mean 

specific conductance ranges from 101 to 220,000 μS/cm, with 

most of the sites having a mean specific conductance of less 

than or equal to 1,000 μS/cm. The greatest specific-conductance values are found in wells with depths below land surface 

between 905 and 8,811 ft near Green River, Utah. These wells 

likely are penetrating the Paradox Member of the Hermosa 

Formation evaporites, or the Lower Paleozoic aquifer system, 

both of which have groundwater with high concentrations of 

total dissolved solids (Feltis, 1966; Hanshaw and Hill, 1969). 

Lower Paleozoic Aquifer System

The limited groundwater-quality data available for the 

Lower Paleozoic aquifer system are associated with oil and 

gas exploration wells completed in geologic units classified 

simply as Mississippian-age or Pennsylvanian-age formations 

(Feltis, 1966; Hanshaw and Hill, 1969). The total dissolvedsolids concentrations observed in 86 of the groundwater-quality samples collected from the Mississippian-age limestones 

and dolomites in Grand County range from 7,172 to 379,469 

mg/L (Feltis, 1966; Hanshaw and Hill, 1969; Gwynn, 1995; 

Eisinger and Lowe, 1999). The Leadville Limestone and 

associated geological equivalents typically contain sodiumchloride groundwater with secondary sulfate and potassium 

(Weir and others, 1983; Gwynn, 1995). Hanshaw and Hill 

(1969) describe most groundwater samples from strata older 

than Permian as brines (more than 35,000 mg/L total dissolved solids) of sodium-chloride with large amounts of 

calcium-sulfate or calcium-chloride type water. Groundwater 

from, or in contact with, the Paradox Member of the Hermosa 

Formation typically has high concentrations of total dissolved 

solids because of the presence of thick evaporite sequences 

(Hanshaw and Hill, 1969). Hanshaw and Hill (1969) analyzed 

two chemically different regions east and west of a line that 

coincides with the Green River to its confluence with the Colorado River and continues southward along the east side of the 

Monument Uplift. Groundwater samples from west of the line 

had total dissolved-solids concentrations of less than 35,000 

mg/L, and samples from east of the line had total dissolvedsolids concentrations of greater than 35,000 mg/L, and typically more than 100,000 mg/L (Hanshaw and Hill, 1969); this 

is likely because the evaporite facies of the Pennsylvanian age 

typically are limited to the area east of the line (Geldon, 2003).

Cutler Formation Aquifer

Total dissolved-solids concentrations in groundwaterquality samples collected from the White Rim and Cedar 

Mesa Sandstones in Canyonlands National Park varied by 

an order of magnitude between springs and wells (Huntoon, 

1977, 1979). Huntoon (1977, 1979) observed that four springs 

had total dissolved-solids concentrations ranging from 270 

to 814 mg/L; four wells, however, had total dissolved-solids 

concentrations ranging from 1,720 to 2,730 mg/L. The difference in total dissolved-solids concentrations may be attributed 

to major ion concentrations in each of the samples. The spring 

samples were calcium-magnesium-bicarbonate and calciummagnesium-sodium-bicarbonate type waters, although the 

groundwater types from the wells varied (Huntoon, 1977).

Groundwater quality of the undifferentiated Cutler Formation was reported on by Rush and others (1982), Weir and 

others (1983), and Blanchard (1990). Total dissolved-solids 

concentrations ranged from 237 to 6,010 mg/L. Blanchard 

(1990) also found concentrations of selenium in two wells 

near Castle Valley that were greater than the 50 μg/L health 

standard. The Cutler Formation typically contains calciummagnesium-sulfate or calcium-magnesium-sodium-sulfate 

type groundwater (Blanchard, 1990).
78 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

Figure 16. Mean field-measured specific conductance of groundwater from springs and wells within the study area. COLORADO UTAH

UINTAH

COUNTY

CARBON

COUNTY

GRAND

COUNTY

EMERY

COUNTY

WAYNE

COUNTY

GARFIELD

COUNTY

MESA

COUNTY

GARFIELD

COUNTY

SAN JUAN

COUNTY DOLORES COUNTY

MONTROSE COUNTY

Colorado River

Colorado River

Green River

Dolores River

70

70

191

313

128

279

211

Green

River Crescent

Junction

Moab

Monticello

20 KILOMETERS

20 MILES

0 5 10 15

0 5 10 15

110° 109°

39°

38°

Book

Cliffs

Uncompahgre Plateau

La Sal Mountains

Abajo Mountains

Arches

National

Park

Canyonlands

National

Park

Mean, field-measured specific 

conductance, in microsiemens per 

centimeter at 25 degrees Celsius

Wells

101 to 500

501 to 1,000

1,001 to 5,000

5,001 to 10,000

10,001 to 50,000

50,001 to 100,000

100,001 to 220,000

Moab Master Leasing Plan area

National Park

Study area boundary

EXPLANATION

Springs

101 to 500

501 to 1,000

1,001 to 5,000

5,001 to 10,000

10,001 to 50,000

50,001 to 100,000

100,001 to 220,000
Groundwater 79

Glen Canyon Group Aquifer

Total dissolved-solids concentrations for groundwater samples collected from wells completed in the Wingate Sandstone 

ranged from 161 to 717 mg/L (Sumsion, 1971; Rush and others, 1982; Weir and others, 1983; Blanchard, 1990). The Wingate Sandstone typically has calcium-magnesium-bicarbonate 

or magnesium-sodium-calcium-bicarbonate type groundwater 

(Blanchard, 1990). Blanchard (1990) also reported that in one 

location, the median total dissolved-solids concentration (from 

four samples) was about 45,000 mg/L, and the type of water 

in this location was sodium-chloride, atypical of most waters 

found within the upper aquifer system. It was suspected that 

these high concentrations were from the upward movement of 

brines from the Paradox Member of the Hermosa Formation at 

this location (Blanchard, 1990).

The Navajo Sandstone typically produces groundwater 

with lower total dissolved-solids concentrations because of 

a combination of low-solubility mineral content and direct 

infiltration of precipitation into extensive formation outcrops 

(Rush and others, 1982; Eisinger and Lowe, 1999). Total dissolved-solids concentrations reported from springs and wells 

in the Navajo Sandstone range from 102 to 827 mg/L (Sumsion, 1971; Rush and others, 1982; Weir and others, 1983; 

Blanchard, 1990; Steiger and Susong, 1997). The Navajo 

Sandstone typically has calcium-bicarbonate or calcium-magnesium-bicarbonate type groundwater, but also can contain 

calcium-sodium-magnesium-bicarbonate, magnesium-sodiumbicarbonate-sulfate, and magnesium-sodium-bicarbonatechloride-sulfate type groundwater (Blanchard, 1990; Eisinger 

and Lowe, 1999).

Entrada Aquifer

Relatively shallow groundwater samples collected from 

the Entrada aquifer have total dissolved-solids concentrations ranging from 119 to 417 mg/L (Rush and others, 1982; 

Weir and others, 1983; Blanchard, 1990). Within the southern 

part of Grand County, the Entrada aquifer typically contains 

calcium-carbonate, calcium-bicarbonate, calcium-magnesiumbicarbonate, or calcium-magnesium-bicarbonate-sulfate 

type water (Blanchard, 1990). Three deep oil wells and one 

groundwater well, located in the central and northeastern parts 

of Grand County where the Entrada Sandstone is 900 to 5,300 

ft below land surface, were reported to have total dissolvedsolids concentrations between 9,470 and 86,600 mg/L (Feltis, 

1966). The groundwater was sodium-chloride type at these 

locations (Blanchard, 1990). These samples are likely indicative of long groundwater flowpaths, as salinity typically 

increases with vertical depth and lateral distance from the 

recharge areas (Blanchard, 1990).

Morrison Aquifer

Groundwater samples collected from the undifferentiated 

Morrison Formation had total dissolved-solids concentrations 

ranging from 517 to 25,700 mg/L, and the groundwater type 

typically was calcium-magnesium-sodium-sulfate-bicarbonate 

or sodium-chloride (Feltis, 1966; Rush and others, 1982; 

Blanchard, 1990). Groundwater within the Brushy Basin 

Member of the Morrison Formation (Brushy Basin confining unit) typically has high radionuclide activity (beta, alpha, 

and uranium activities) because of large quantities of uranium 

within the formation (Blanchard, 1990).

Dakota Aquifer

Groundwater samples collected from wells completed in 

the Dakota aquifer had total dissolved-solids concentrations 

ranging from 98 to 1,800 mg/L (Sumsion, 1971; Weir and 

others, 1983; Blanchard, 1990). Groundwater in the Dakota 

aquifer typically is calcium-bicarbonate type water (Weir and 

others, 1983).

Mesaverde Aquifer

Total dissolved-solids concentrations ranging from 500 

to 800 mg/L have been reported for groundwater from the 

Mesaverde aquifer (Feltis, 1966; Conroy and Fields, 1977; 

Blanchard, 1990; Gwynn, 1995; Eisinger and Lowe, 1999). 

Groundwater in the Mesaverde aquifer typically is calciummagnesium-bicarbonate type water, although some samples 

can be of mixed water type (Blanchard, 1990; Eisinger and 

Lowe, 1999).

Unconsolidated Aquifers

In general, limited groundwater-quality data are available 

for the unconsolidated aquifers; however, a number of previous investigations have evaluated groundwater quality of the 

unconsolidated aquifers in Moab-Spanish Valley and Castle 

Valley. Total dissolved-solids concentrations in samples collected from the unconsolidated aquifer in Moab-Spanish Valley ranged from 167 to 1,820 mg/L (Sumsion, 1971; Steiger 

and Susong, 1997). Sumsion (1971) surmised that groundwater from the fractured Glen Canyon Group aquifer mixes with 

groundwater from the unconsolidated aquifer, which decreases 

the total dissolved-solids concentrations. Nitrate concentrations in the Moab-Spanish Valley unconsolidated aquifer were 

as high as 26 mg/L as nitrate, and four out of nine samples 

exceeded the groundwater-quality standard of 10 mg/L as 

nitrate (Sumsion, 1971; UT DEQ Web site, available at http://

www.waterquality.utah.gov/GroundWater/gwstandards.htm). 

Steiger and Susong (1997), found groundwater nitrate plus 

nitrite concentrations ranging from 0.04 to 5.87 mg/L. Steiger 

and Susong (1997) suggested that areas with nitrate plus 

nitrite concentrations of more than 3 mg/L in the central part 
80 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

of Moab-Spanish Valley resulted from anthropogenic activities. Groundwater in the Moab-Spanish Valley unconsolidated 

aquifer typically is bicarbonate or calcium-sulfate-bicarbonate 

type water (Steiger and Susong, 1997).

There are no total dissolved-solids concentrations reported 

for Castle Valley, but specific-conductance values from eight 

groundwater wells ranged from 357 to 1,960 μS/cm (Ford and 

Grandy, Utah Geological Survey, written commun., 1995). 

Weir and others (1983) observed a down-valley and downgradient increase in specific conductance in the unconsolidated 

aquifer of Castle Valley. The increase in specific conductance 

through the valley may be a result of the influence of recharge 

from the Cutler Formation and Paradox Member of the Hermosa Formation, which are both known to contain groundwater with high concentrations of total dissolved solids, or from 

downgradient movement of the water (Snyder, 1996; Eisinger 

and Lowe, 1999).

Brines and Saline Groundwater

Information is limited on the availability of brines and 

saline groundwater within the study area. As discussed in 

section, “Groundwater Quality”, groundwater from, or in 

contact with, the Paradox Member of the Hermosa Formation typically shows high total dissolved-solids concentrations of greater than 35,000 mg/L, and typically more than 

100,000 mg/L (Hanshaw and Hill, 1969). Total dissolvedsolids concentrations observed in groundwater samples 

collected from wells completed in Mississippian-age limestones and dolomites in Grand County range from 7,172 to 

379,469 mg/L (Feltis, 1966; Hanshaw and Hill, 1969; Gwynn, 

1995; Eisinger and Lowe, 1999). The Leadville Limestone 

and associated equivalents typically contain sodium-chloride 

water with subordinate sulfate and potassium (Weir and others, 1983; Gwynn, 1995). Hanshaw and Hill (1969) describe 

most water samples from strata below the Permian as brines 

of sodium-chloride with large amounts of calcium-sulfate or 

calcium-chloride type water. Because the Paradox Member 

of the Hermosa Formation is considered a barrier to vertical 

groundwater flow, it appears, therefore, that most of the brine 

and saline groundwater resources are restricted to the Lower 

Paleozoic aquifer system and Upper Paleozoic confining unit 

(table 1), or in areas that are in contact with the Paradox Member of the Hermosa Formation. There are no previous studies, 

however, that quantify the amount of groundwater in, or the 

storage capacity of, the Lower Paleozoic aquifer system.

Future Work

To better understand and quantify surface-water and 

groundwater resources within the Moab MLP and the greater 

study area, several lines of future work need attention. First, 

a comprehensive, up-to-date groundwater budget for the 

study area needs to be investigated. This includes a robust 

assessment of groundwater discharge locations and groundwater recharge locations. Specifically, an inventory of spring and 

well locations and discharge and withdrawal data would be 

beneficial, as many of the sites in the NWIS database do not 

have more than location data associated with them and there 

may be newer wells that may not be in the database. Additionally, a more rigorous calculation of recharge to both the upper 

and lower groundwater systems is warranted.

Second, a more complete evaluation of surface-water 

resources is needed. This assessment should include more 

information or studies to examine long-term trends to surfacewater resources distributed throughout the study area. A better 

understanding is needed of streamflow variability within each 

reach of an individual stream (ephemeral compared to perennial reaches) and how streamflow varies over time from the 

seasonal to the annual scale. Periodic and regular site visits 

should be completed to accurately assess, identify, quantify, 

and validate the surface-water resources.

Finally, incorporation of this information in numerical 

groundwater and (or) surface-water models would enhance 

greatly the quantification of the potential effects that future 

surface-water and groundwater use would have on water 

resources within the study area. Surface-water and groundwater resources are intimately linked and the benefit of a numerical model is that stresses implemented on one resource can 

be simulated at spatial and temporal scales that are difficult to 

determine with observed data only. Additionally, the predictive 

utility of a calibrated and validated numerical model would 

allow water managers to test scenarios prior to implementation 

and to avoid unwarranted repercussions.

Summary

The Bureau of Land Management (BLM) Canyon Country 

District Office is preparing a leasing plan known as the Moab 

Master Leasing Plan (Moab MLP) for oil, gas, and potash 

mineral rights in an area encompassing 946,469 acres in Grand 

and San Juan Counties in southeastern Utah. The BLM has 

identified water resources as being potentially affected by oil, 

gas, and potash development and has requested that the U.S. 

Geological Survey (USGS) prepare a summary of existing 

water-resources information for the Moab MLP area. This 

report provides information that will assist the BLM in developing leasing configurations, addressing resource conflicts, 

and developing mitigation strategies for the Moab MLP area, 

and will serve as the basis for analysis of water-resource issues 

in a future environmental impact statement to be prepared by 

the BLM. This report includes a summary and synthesis of 

previous and ongoing investigations conducted in the Moab 

MLP and adjacent areas in Utah and Colorado from the early 

1930s through the late 2000s.

Eight principal aquifers and six confining units were identified in the study area. Generally, the aquifers can be split 

into four types: (1) limestone aquifers of marine origin, (2) 
Summary 81

sandstone aquifers of eolian and marine origin, (3) sandstone 

and conglomerate aquifers of fluvial origin, and (4) valleyfill aquifers in unconsolidated deposits. The permeability is 

a function of both the primary permeability from interstitial 

pore connectivity and secondary permeability created by karst 

features or faults and fractures. Vertical hydraulic connection 

generally is restricted to strongly folded and fractured zones, 

which are concentrated along steeply dipping monoclines and 

in narrow regions encompassing igneous and salt intrusive 

masses. Several studies have identified both an upper and 

lower aquifer system separated by the Pennsylvanian-age 

Paradox Member of the Hermosa Formation, an evaporite that 

is considered to be a confining unit. The principal aquifers and 

confining units vary in their aggregated classification between 

studies and are not considered laterally or vertically homogenous. Additionally, aquifer information throughout the study 

area is not equally available or explicitly characterized for all 

geologic units.

Surface-water resources of the study area are dominated 

by the Colorado River. Numerous perennial and ephemeral 

or intermittent tributaries join the Colorado River as it flows 

from northeast to southwest across the study area, draining the 

surrounding upland areas of the Book Cliffs, Arches National 

Park, the La Sal Mountains, and the Abajo Mountains. The 

Green River is the largest perennial tributary to the Colorado 

River in the study area. The Green River flows south into 

the study area, joining the Colorado River in Canyonlands 

National Park.

An annual spring snowmelt and runoff event dominates 

the hydrology of streams draining mountainous parts of the 

study area, and most of the perennial streams within the study 

area are considered to be snowmelt-dominated. The timing of 

the peak snowmelt runoff at a streamgage will vary in time 

because of year-to-year variations in snowpack depth and air 

temperature. Higher-altitude locations generally are underlain by fractured volcanics with secondary permeability that 

increases subsurface infiltration and groundwater recharge, 

as opposed to rapid surficial runoff. A bimodal distribution is 

observed in hydrographs from some sites with a late-spring 

snowmelt-runoff peak followed by smaller peaks of shorter 

duration during the late summer. The rapid and intense (flashy) 

response to monsoonally-derived precipitation events is typical of watersheds where semi-impermeable slickrock sandstone is prevalent. The large regional streams (the Colorado 

River, the Green River, and the Dolores River) integrate the 

hydrologic partitioning of a very large contributing area and, 

therefore, the hydrographs for these streams are much more 

smooth and consistent. 

Eight sites in Salt Creek had some of the greatest mean specific-conductance measurements, ranging from slightly greater 

than 12,000 μS/cm to as much as about 141,000 μS/cm. Two 

other sampling locations with mean specific-conductance 

values greater than 10,000 μS/cm were in Professor Creek and 

Lathrop Canyon. Several streams throughout the study area 

are considered impaired by the EPA for specific designateduse classifications. Based on the reporting cycle for 2010, the 

EPA has reported that the Colorado River is impaired with 

respect to selenium. Mill Creek, Onion Creek, Pack Creek, 

and the Dolores River are impaired with respect to total dissolved solids. Additionally, Mill Creek, Onion Creek, and 

Pack Creek are impaired with respect to temperature, and the 

Dolores River is impaired with respect to iron. Finally, Castle 

Creek, Westwater Creek, and Cottonwood Wash are impaired 

with respect to benthic macroinvertebrates bioassessments.

Mean discharge for 64 springs varies widely, between less 

than 1 and 371 gal/min. The largest reported mean spring discharges are in Moab-Spanish Valley, and on the western flank 

of the La Sal Mountains. Most springs within the study area 

have mean discharges of less than 10 gal/min. Mean waterlevel altitudes from 417 wells range from 2,500 to 8,500 ft 

within the study area. The water-level altitudes generally 

indicate a regional hydraulic gradient, or groundwater flow 

potential, towards the Colorado River, with local gradients 

showing groundwater movement towards smaller surfacewater drainage features.

Limited data are available to quantitatively estimate the 

large-scale regional groundwater budget for the study area. 

Some previous studies, however, have estimated groundwater 

budgets for areas within and adjacent to the current study area, 

namely Moab-Spanish Valley and parts of the Paradox Basin. 

Most groundwater recharge to the study area originates as 

infiltration of precipitation from upland areas where precipitation quantities are the greatest. Recharge from precipitation is 

further enhanced in areas covered with sandy soils or in areas 

where the bedrock is highly fractured. Additional groundwater 

recharge occurs as seepage from streams and irrigation water, 

and as subsurface inflow, both vertically between aquifers 

and as lateral movement into the study area across its defined 

boundaries. Previous estimates of total groundwater recharge 

to Moab-Spanish Valley range from 14,000 to 17,000 acre-ft/

yr, and to the upper aquifer system of the Paradox Basin are 

about 230,000 acre-ft/yr. Groundwater discharge occurs as 

seepage to streams, evapotranspiration, to springs and seeps, 

well withdrawals, and as subsurface outflow, both vertically 

between aquifers and as lateral movement out of the study 

area across its defined boundaries. Previous estimates of total 

groundwater discharge from Moab-Spanish Valley range from 

14,000 to 17,000 acre-ft/yr, and from the upper aquifer system 

of the Paradox Basin are about 350,000 acre-ft/yr. Groundwater use within the study area was determined using data 

from the Utah Division of Water Rights. Most wells within 

the study area are categorized as having multiple uses. Of the 

total number of wells (4,960), 4,298 are categorized as being 

used for domestic supply, stock watering, and irrigation; 67 

are categorized as being used for municipal supplies; 19 are 

categorized as being used for mining; 280 are categorized as 

having a use of “other”; and 578 have no data regarding use.

Mean specific-conductance values for groundwater from 

wells and springs within the study area range from 101 to 

220,000 μS/cm, with the most of the sites having a mean 

specific conductance of less than or equal to 1,000 μS/cm. 

The greatest specific-conductance values are found in wells 
82 Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area

with depths below land surface between 905 and 8,811 ft 

near Green River, Utah. These wells likely are penetrating the 

Paradox Member of the Hermosa Formation evaporites, or the 

Lower Paleozoic aquifer system, both of which have groundwater with high concentrations of total dissolved solids. Previously reported total dissolved-solids concentrations, specific 

conductances, and other groundwater-quality data for each of 

the principal aquifers also are summarized and indicate relatively fresh water throughout the study area, except within the 

Lower Paleozoic aquifer system and areas in contact with the 

Paradox Member of the Hermosa Formation evaporites.

Information is limited on the availability of brines and 

saline groundwater within the study area. Groundwater from, 

or in contact with, the Paradox Member of the Hermosa Formation typically shows high concentrations of total dissolved 

solids (greater than 35,000 mg/L). Concentrations of total 

dissolved solids in groundwater samples collected from the 

Lower Paleozoic aquifer system are high, and typically contain 

sodium-chloride water with subordinate sulfate and potassium, 

or brines of sodium-chloride with large amounts of calciumsulfate or calcium-chloride type water. Because the Paradox 

Member of the Hermosa Formation is considered a barrier to 

vertical groundwater flow, it appears, therefore, that most of 

the brine and saline groundwater resources are restricted to the 

Lower Paleozoic aquifer system and Upper Paleozoic confining unit. There are no previous studies, however, that quantify 

the amount of groundwater in, or the storage capacity of, the 

Lower Paleozoic aquifer system.

To better understand and quantify surface-water and 

groundwater resources within the Moab MLP and the greater 

study area, several lines of future work need attention. First, 

a comprehensive, up-to-date groundwater budget for the 

study area needs to be investigated. Second, a more complete 

evaluation of surface-water resources is needed, including 

examination of long-term trends to surface-water resources 

distributed throughout the study area. Finally, incorporation of 

this information in numerical groundwater and (or) surfacewater models would enhance greatly the quantification of the 

potential effects that future surface-water and groundwater use 

would have on water resources within the study area.

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Masbruch and Shope—Groundwater and Surface-Water Resources in the Bureau of Land Management Moab Master Leasing Plan Area and Adjacent 

Areas, Grand and San Juan Counties, Utah, and Mesa and Montrose Counties, Colorado—OFR 2014-1062

ISSN 2331-1258

http://dx.doi.org/10.3133/ofr20141062