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s . r r * , 5 1.1248 (Baggs)

TOWN C 3AGGS, WYOMING ALLUVIAL Wt I PROJECT

FINAL REPORT

Baggs Exploration Well No. 99-1

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TOWN OF BAGGS, WYOMING ALLUVIAL WELL PROJECT

FINAL PROJECT REPORT

Prepared for:

- WESTON P M PC consulting Engineer GROUNDWATER ENGINEERING

P. 0. Box 6037 P.O. Box 370 1 Laramie, Wyoming 82070 Saratoga, Wyoming 8233 1

WYOMING WATER DEVELOPMENT COMMISSION Herschler Building, Cheyenne Wyoming 82002

Prepared by:

TABLE OF CONTENTS

1 . 0 INTRODUCTION

PAGE

1.1 Purpose And Scope Of Project 1.2 Authorization 1.3 Project Location 1.4 Population And Demographics

2 . 0 SUMMARY OF EXISTING WATER SYSTEM

2.1 Demand 2.2 Water Supply 2.3 Water Treatment 2.4 Distribution System 2.5 Water Storage 2.6 Evaluation Of Existing System

3 . 0 CONCEPTUAL DESIGN

3.1 Previous Reports 3.2 Water Supply Source Alternatives

Alluvium Brown's Park Formation Wasatch Formation Fort Union Formation

3.3 Selected Alternative and Results Presentation 3.4 Water Rights Analysis 3.5 Conveyance System Feasibility

4 . 0 EXPLORATORY DRILLING PROGRAM

4.1 Permitting Office of State Engineer Wyoming Department of Environmental Quality Access Agreements

4.2 Test Well Drilling Program Test Well No. 99-1 Test Well No. 99-2

4.3 Exploration Well Drilling Construction, and Testing Introduction Exploration Well 99-1 Exploration Well 99-2

5 . 0 CONCLUSIONS AND RECOMMENDATIONS

TABLE OF CONTENTS (CONTINUED)

APPENDIX A

APPENDIX B

APPENDIX C

APPENDIX D

APPENDIX E

APPENDIX F

APPENDIX G

TABLE 1

TABLE 2

TABLE 3

TABLE 4

TABLE 5

TABLE 6

TABLE 7

TABLE 8

TABLE 9

APPENDICES

REFERENCES CITED

WELL SITING REPORT

PROJECT PERMITS

LITHOLOGIC LOGS

WELL HISTORIES

PUMP TEST DATA

WATER QUALITY DATA

LIST OF TABLES

TOWN OF BAGGS HISTORIC POPULATION WELL

TOWN OF BAGGS POPULATION PROJECTIONS

TOWN OF BAGGS MONTHLY WATER PRODUCTION

SUMMARY OF PERMITS ISSUED FOR WELL CONSTRUCTION AND TESTING

BAGGS WELL NO. 99-1 SUMMARY

SUMMARY OF PUMP TEST ANALYSES EXPLORATION WELL NO. 99-1

BAGGS EXPLORATION WELL NOS. 99-1 AND 99-1 NO. 2 RESULTS OF WATER QUALITY ANALYSES AND COMPARISON WITH EPA DRINKING WATER STANDARDS


SUMMARY OF PUMP TEST ANALYSES EXPLORATION WELL NO. 99-2

PAGE

3

TABLE OF CONTENTS (CONTINUED)

LIST OF FIGURES

FOLLOWING PAGE

FIGURE 1 LOCATION MAP

FIGURE 2 EXPLORATION WELL NO. 99-1 AS-BUILT DIAGRAM

FIGURE 3 EXPLORATION WELL NO. 99-1 CONSTANT-DISCHARGE TEST DATA

FIGURE 4 EXPLORATION WELL NO. 99-2 CONSTANT-DISCHARGE TESTRECOVERYDATA

FIGURE 5 EXPLORATION WELL NO. 99-2 AS-BUILT DIAGRAM

FIGURE 6 EXPLORATION WELL NO. 99-2 PUMP TEST DATA

FIGURE 7 EXPLORATION WELL NO. 99-2 PUMP TEST RECOVERY DATA

BAGGS ALLUVIAL WELL PROJECT REPORT

1.0 INTRODUCTION

1 .I Purpose and Scope of Project

The Town of Baggs, Wyoming (Baggs) currently receives 100 percent of its drinking water supply from the Little Snake River. Water diverted from the Little Snake River is treated prior to distribution for consumption; however, as is the case for many Wyoming communities that rely on surface water, the Baggs water treatment plant cannot meet U.S. Environmental Protection Agency (EPA) drinking water standards for turbidity during high flow in the river. The objectives of the Baggs Alluvial Well Project were: (1) to investigate the groundwater productivity of the alluvium of the Little Snake River in the vicinity of the town, and (2) to determine whether the alluvium can serve as an effective filter for reducing the turbidity of the water prior to treatment in the water treatment plant.

The scope of work for the project to meet the objectives listed above included drilling two slender test wells to determine the thickness and lithology of the alluvium within the town limits or in the immediate vicinity of the town and to drill, construct, and pump test one exploration well at the most favorable site. Additional work included conducting a pipeline feasibility study and analyzing existing water rights held by Baggs.

This report provides the project background; a brief summary of the existing water system; and a

conceptual design of the project, including the identification of water supply alternatives, the pipeline feasibility study results, the water rights analysis, and the selected water supply alternative. The report also describes the exploratory drilling program and provides recommendations based on the results of the exploratory drilling program.

1.2 Authorization

Baggs entered into a contract with the Wyoming Water Development Commission (WWDC) to conduct a test well drilling program, with funds secured from the Groundwater Exploration Program. The Groundwater Exploration Program provided a grant for 75 percent of the project costs to the town. The remaining 25 percent of the project costs were provided by Baggs.

Weston Engineering, Inc. (WESTON), was selected by Baggs to provide groundwater engineering services for the project. PMPC Consulting Engineers, of Saratoga, Wyoming, was selected as a sub-consultant to provide a feasibility study, develop cost estimates for pipelines, and to investigate water rights issues.

BAGGS ALLUVIAL WELL PROJECT --

FINAL REPORT

1.3 Project Location

Baggs is located in Carbon County in southeastern Wyoming, approximately three miles north of the Wyoming/Colorado border (see Inset, Figure 1). The Town is situated in the valley of the Little Snake River at an elevation of approximately 6,245 feet. The scope of the project limited the study to the immediate vicinity of the corporate limits of the Town.

1.4 Population and Demographics

The Town is a rural residential community, with a population of approximately 254 people. Census records indicate that Baggs has experienced significant population fluctuations over the past thirty years. The population of Baggs, as reported by the U.S. Census Bureau for the past thirty years is provided in Table 1.

In addition to the census records, Baggs population projections have been prepared by other public entities. The Wyoming Department of Administration and Information (DAI) has compiled population estimates to the year 2008, based on the projections of the Wyoming Economic Forecast (WEF) report. The projections are provided in Table 2.

Assuming an existing population of 254 people with a 1 percent growth rate, the projected

population for the Town of Baggs in the year 2020 would be 310 people.

BAGGS ALLUVIAL WELL PROJECT

FINAL REPORT

TABLE 1 TOWN OF BAGGS HISTORIC POPULATION

Source of Data: U.S. Census Bureau

TABLE 2 TOWN OF BAGGS POPULATION PROJECTIONS

Source of Data: Wyoming Department Of Administration And Information


FINAL REPORT

2.0 SUMMARY OF EXISTING WATER SYSTEM

This section addresses the adequacy of Baggs' existing water supply to meet present and future needs.

2.1 Demand

Based on data from monthly water reports, Table 3 presents the water usage for Baggs from September, 1998 through August, 1999. The average monthly use is 2,644,667 gallons, with a maximum monthly use of 5,055,000 gallons in July. The average daily use is 86,948 gallons per day or based upon a population of 254 people, 342 gallons per capita per day. From these monthly records, the maximum daily use was estimated to be 238,000 or 2.74 times greater than the average daily use. Although these rates are higher than the State average for similar size communities, they appear reasonable based on irrigation uses, commercial users, and reported losses in the system.

2.2 Water Supply

The existing water supply source for Baggs is the Little Snake River. An intake structure located in Section 5, T12N, R91W conveys water directly to Baggs Well No. 1. The primary function of Baggs Well No. 1 is storage for water from the river intakes; however, the well is open to the alluvial aquifer and is reportedly capable of producing approximately 15 gallons per minute (gpm). Water from the Little Snake River is co-mingled with water from Baggs Well No. 1 to provide 350 gpm of usable appropriation.

The existing intake from the Little Snake River has four drawoff points at the Baggs water treatment plant. Inspection of the drawoff pipe in November 1999 indicated it was approximately two feet above the water level. From existing record drawings for this structure, the lower pipe had a plywood cover installed over it, which has since been washed away. Each pipe had a bar screen installed at the end of the pipe. These screens are in need of repair. Significant erosion has taken place around the piping in past years and should be repaired.

2.3 Water Treatment

As previously stated, the water source for Baggs is the Little Snake River. Turbidities of the water in the Little Snake River range from 4 to 400 Nephelometric Turbidity Units (NTU), depending on the flow in the river.

The original Baggs water treatment plant and subsequent upgrades provide water treatment by several unit processes. The current capacity of the treatment plant is 200 gpm. Water from Baggs Well No. 1 was originally pumped from the well by a submersible pump through a strainer and a desander prior to entering the treatment plant. The first treatment step in the water treatment plant is the adsorption clarifier (Microfloc Model AC-35). The purpose of this unit is to


FINAL REPORT

TABLE 3

TOWN OF BAGGS MONTHLY WATER PRODUCTION

Average Daily Use

Maximum Daily Use

86,950

238,000 (July)


FINAL REPORT

reduce the highly tljrbid water by 50 to 90 percent of its turbidity prior to treatment by the package water treatment plant. The next treatment step is the 200 gpm water treatment plant (Neptune/Microfloc Aquarius Model AC4QA). The package plant provides flocculation, clarification and filtration in a single tank.

Over the past several years, some of the processes discussed above have been bypassed or removed from service. The submersible pump and strainer were removed because of accumulation of sticks and moss on the screens which obstructed the flow of water. A centrifugal pump was installed to replace the submersible pump. With the removal of the strainer, debris can now enter the adsorption clarifier, compounding the plant operation problems. The original plant was also designed to provide for pre-chlorination of the influent water. This process has also been removed from service. The system does not have an adequate chlorine contact time prior to the first point of use. The Town is pursuing correction of this problem.

2.4 Distribution System

Treated water from the water treatment plant is pumped directly through the distribution system, with excess water being used to fill the water storage tank. The distribution system consists of 4- and 6-inch lines. Based on discussions with Town personnel, approximately 65 percent of the water system consists of 4-inch lines. Although records are unclear regarding pipe materials, it is likely that piping installed in the Jebens Addition is a low pressure rated PVC pipe.

A network analysis of the existing water system should be conducted to determine deficiencies within the distribution system during the upcoming Level II study.

2.5 Water Storage

The existing storage for Baggs consists of a 280,000 gallon storage tank located south of Town. The Town has recently repainted the exterior of the tank and constructed a chain link fence around the facility.

2.6 Evaluation Of Existing Water System

At the present time the maximum daily demand is approximately 2.74 times greater than the average daily demand. With the plant operating at 200 gpm and assuming a population of 31 0 people, the existing water treatment plant will fall short of meeting maximum daily demands prior to the year 2020.

The Wyoming Department of Environmental QualityNVater Quality Division rules and regulations for storage facilities requires a minimum storage capacity equal to the average daily demand plus fire flow for a two-hour period. The projected average daily demand for the year 2020 is 106,020 gallons. Subtracting this projected demand from the capacity of the existing storage tank leaves 173,980 gallons for fire flow. Dividing 173, 980 gallons by the required two-hour time period

BAGGS ALLUVIAL WELL PROJECT --

FINAL REPORT

yields a fire flow of approximately 1,450 gpm. Hydrant tests, conducted by Baggs and the local Fire Department, indicate the existing hydrants are capable of flowing from 300 to 600 gpm which is well below accepted standards.


FINAL REPORT

3.0 CONCEPTUAL DESIGN

3.1 Previous Reports

Bradley (1961) and Welder and McGreevey (1966) mapped the geology of the Great Divide and Washakie Basins, in which Baggs is located, at a scale of 1:250,000. Good (1960) mapped the geology of the Baggs area at a scale of 1:28,000 in an unpublished Master's thesis. Collentine and others (1981) provided a summary of the known ground water data for the Great Divide and Washakie Basins during a state-wide study conducted under the auspices of the Wyoming Resources Research Institute. Western Water Consultants (1992) conducted an evaluation of the Baggs water supply, treatment, and delivery system, as part of the Little Snake River Basin Planning Study.

3.2 Water Supply Source Alternatives

The area under consideration for this Groundwater Grant project was limited to the area in and immediately adjacent to the Baggs corporate limits. Conversations with the Baggs water system operator indicated that a water supply capable of producing 150 gallons per minute (gpm) would meet the needs of the town. This production rate became the goal for the Baggs Alluvial Well Project and geologic formations capable of producing 150 gpm were considered as potential targets.

The geologic formations that yield groundwater to wells in the Baggs area include the alluvium of the Little Snake River, the Brown's Park Formation, the Wasatch Formation, and the Fort Union Formation. The development potential of each of these formations was considered during the process of selecting the preferred alternative. Published geologic and hydrogeologic reports and records for permitted water wells in the Baggs area were reviewed to assist in selecting the preferred alternative. It is important to recognize that because of the low population density in the Baggs area and the resulting lack of water wells, hydrogeologic data is limited to regional generalizations, with very few site-specific data. Water quality was also an important consideration for selecting a test well target. As with hydrogeologic data, water quality data for formations in the Baggs area are scarce. Each of the potential target formations is discussed below in order of youngest to oldest.

Alluvium

The alluvium of the Little Snake River forms the surficial deposits beneath Baggs. The alluvium is composed of interbedded silt, clay, sand, gravel, cobbles, and boulders. Published geologic and hydrogeologic reports indicate that the alluvium of the Little Snake River is between 0 and 70 feet thick and is capable of yielding up to 50 gallons per minute (gpm) (Collentine and others, 1981). The thickness of the alluvium in the vicinity of Baggs, according to well records maintained by the Wyoming State Engineer's Office, is 30 to 40 feet. However, the subjective nature of the lithologic descriptions in the records did not allow the positive identification of the thickness of the


FINAL REPORT

alluvium in the vicinity of Baggs. Yields of wells completed in the alluvium in and around Baggs, according to the well permits, ranged from 5 to 50 gpm. No aquifer properties are known for the alluvium of the Little Snake River near Baggs because no pump test data could be found.

There is a paucity of water quality data for wells in the Baggs area. Generally the only available data is the Total Dissolved Solids (TDS) concentration, which is used as a general indicator of

water quality. Western Water Consultants (1 992) reports TDS values ranging from 295 to 1,275 mg1L in the Baggs area. The U.S. Environmental Protection Agency (EPA) Maximum Contaminant Level (MCL) for TDS for drinking water is 500 mg1L. The well with the higher TDS concentration was located north of Baggs near Muddy Creek and the well with the lower concentration was located near the southwest corner of the town limits.

Brown's Park Formation

The Brown's Park Formation is present in the Baggs area only on the top of the bluffs south of the Town and the formation does not subcrop beneath the Town. The topographic position and the limited thickness of the Brown's Park Formation in the vicinity of Baggs implies that the saturated

thickness of the formation would be extremely thin, which would correspond to very low yields to wells. In light of these factors, the Brown's Park Formation was not considered further as a potential target for test well drilling.

Wasatch Formation

The Wasatch Formation lies immediately beneath the alluvium of the Little Snake River in Baggs. The Wasatch Formation is composed of interbedded mudstone and fine-grained sandstone, with

a locally present basal conglomerate. The estimated thickness of the Wasatch Formation in the vicinity of Baggs is 750 feet (Western Water Consultants, 1992). Sandstones within the Wasatch Formation are reported to yield water to wells, with production generally ranging from 5 to 50 gpm (Collentine and others, 1981). Yields to wells in the immediate vicinity of Baggs range from 2.5 to 25 gpm, with an average production rate of 10 gpm (Western Water Consultants, 1992). Limited pump testing of wells completed in the Wasatch Formation indicates that the specific capacity of the formation is low, generally below one gallon per minute per foot of drawdown (gpmlft) (Collentine and others, 1981).

Available water quality data for the for the Wasatch Formation in the vicinity of Baggs are limited.

Western Water Consultants (1 992) report that TDS of groundwater developed by wells completed in the Wasatch Formation near Baggs ranges from 300 to 860 mglL. One well completed in the Wasatch Formation in Section 8, T 12 N, R 91 W has a TDS of 71 9 mg/L (Welder and McGreevy,

1966). Another well completed in the Wasatch Formation approximately 4 miles west of Baggs has a TDS of 4,825 mg/L (Collentine and others, 1981). Good (1960) reported that natural gas is frequently produced along with groundwater from the Wasatch Formation in the Baggs area.


FINAL REPORT

Fort Union Formation

The Fort Union Formation is composed of siltstone, claystone, and fine-grained sandstone with thin beds of coal and carbonaceous shale. The Fort Union is approximately 950 feet thick in the vicinity of Baggs (Western Water Consultants, 1992). Collentine .and others (1 981) labeled the Fort Union an important aquifer around the periphery of the Washakie and Great Divide Basins, with reported yields of 3 to 300 gpm from isolated water-bearing sandstones. Regionally, the transmissivity of the Fort Union Formation is less than 2,500 gallons per day per foot (gpdlft) (Collentine and others, 1981).

Water quality data are scarce for the Fort Union Formation in the Baggs area; however, the available data indicate that the water produced from the Fort Union Formation is not suitable for drinking water. Welder and McGreevy (1966) indicate that the TDS of groundwater developed from the Fort Union Formation in the study area ranges from 800 to 3,320 mgIL, which is well above the 500 mg/L MCL set by the EPA.

3.3 Selected Alternative and Results Presentation

The allluvium of the Little Snake River was selected as the preferred groundwater supply alternative. According to available geologic and hydrogeologic data and existing well records the Fort Union Formation could potentially yield the greatest quantity of water; however, the water quality data indicated that groundwater in the Fort Union Formation would probably be unsuitable for drinking water. The Wasatch Formation is likely to yield less than 10 gpm in the Baggs area, which is well below the desired production rate of 150 gpm. The alluvium of the Little Snake River presented the best groundwater alternative, both in terms of water quantity and quality. While both parameters are highly variable, due to the heterogeneous nature of the deposits, the alluvium had not been the subject of a systematic hydrogeologic study in the Baggs area and presented the best target for an exploration well program.

A well siting letter report, prepared by WESTON, was presented to the Baggs Town Council on August 10, 1999 (see Appendix B). The well siting study identified three test well sites in the vicinity of Baggs. The first test well site was located adjacent to the water treatment plant. This site was selected because it was in the immediate proximity of the existing infrastructure, the site is situated across the Little Snake River from Muddy Creek which may have resulted in the deposition of a thicker sequence of alluvium, and because water well records maintained by the Wyoming State Engineer's Office indicated a well near the location produced 50 gpm. The second site, located in the NW NE Section 5, T 12 N, R 91 W, was selected to test for the potential of a greater saturated thickness due to the contribution of sediments from both the Little Snake River and Muddy Creek. The site was located outside of the Baggs Town limits and would require a pipeline with a length of nearly one-half mile and a river crossing. The expense of the pipeline and river crossing caused the site to be rejected by the Baggs Town Council. The third site was approximately 1,700 feet south of the water treatment plant along Highway 70. The site


FINAL REPORT

was selected because of easy access for drilling, because it could be easily incorporated into the

existing infrastructure, and because it would provide important data concerning the distribution of the alluvium along the southern part of the Little Snake River flood plain.

The Baggs Town Council approved drilling test wells at the first and third sites on August 10, 1999. The location of the third site was later moved west to the Baggs Fire Department property because suitable access could not be obtained from private property holders and because an active sewer lagoon was located near the site.

3.4 Water Rights Analysis

Based on information obtained from the State Engineer's Office, Baggs has an appropriation amount of 350 gpm under Permit Nos. U.W. 15173 and U.W. 31718. The maximum daily consumption for the year 2020 is estimated to be 202 gpm, which leaves approximately 148 gpm for future development.

3.5 Conveyance System Feasibility

Two sites were investigated for the installation of an alluvial well. Site No. 1 was located approximately 300 feet to the northwest of the water treatment plant building. Site No. 2 was located behind the Baggs Fire Station, approximately 1,800 feet south of the water treatment plant. Estimated costs for installation of a pump, piping, and valving for connection of the alluvial well on Site No. 1 to the water treatment plant were $36,000 and Site No. 2 were $121,000. These costs were based upon the alluvial wells yielding a minimum of 200 gpm.


FINAL REPORT

4.0 EXPLORATORY DRILLING PROGRAM

4.1 Permitting

This section discusses the permits acquired for the completion of well construction and testing. A summary of the permits issued for this project is provided in Table 4.

TABLE 4 SUMMARY OF PERMITS ISSUED FOR WELL CONSTRUCTION AND TESTING

ISSUEING AGENCY PERMIT OR REFERENCE NO.

Office of State Engineer

Office of the State Engineer. The Wyoming State Engineer approved two test well permits for the Baggs Alluvial Well Project. The permits, U.W. 118635 and U.W. 118636, are applied to Baggs Test Well No. 1 and Baggs Test Well No. 2, respectively. The permits will be automatically canceled on December 31, 2000. Appendix C contains copies of the test well permits. At the request of Kevin Boyce, P.G., the Wyoming Water Development Commission (WWDC) project manager, U.W. 6 forms were completed with pertinent data for inclusion in the Wyoming State Engineer's Archives. Copies of these forms are included in Appendix C.

Wyoming Department Of Environmental Quality. The Department of Environmental Quality (DEQ) and the WWDC entered into a Memorandum of Agreement (MOA) on April 6, 1995 that granted DEQ Permits to Construct to all WWDC exploration well projects conducted from 1995 to 2000. As required by the MOA, an engineering design and testing plan for the test wells were submitted to the DEQ.

An NPDES Permit was applied for and issued for discharging water associated with pump testing. The permit expires on September 5, 2000. A copy of the NPDES Permit is provided in Appendix


FINAL REPORT

Access Agreements. No access agreements were required for drilling test wells at the two selected well sites because they are located on properties owned by Baggs. At the request of

WESTON, the Baggs Town Council formally approved drilling the test wells on Town-owned

property -

4.2 Test Well Drilling Program

The test well drilling program consisted of drilling two slender test wells at the selected sites to determine the lithology and thickness of the alluvium at the selected well sites. The wells were

projected to have a maximum depth of 100 feet. The test well drilling program, as originally

specified, was to include geophysical logging of the test wells to facilitate the identification of permeable, water-bearing strata. After drilling and logging the two test wells one site was to be selected for construction of an exploratory well for testing the productivity of the alluvium.

Test Well No. 99-1

D.C. Drilling mobilized on the Test Well No. 99-1 site on November 18, 1999 and drilled the test

well to a total depth of 20 feet. Drilling was terminated at 20 feet because the drill cuttings indicated that the total thickness of the alluvium at the test well site is 14 feet. It was decided to not geophysically log the test well because the alluvium was only 14 feet thick, the geophysical logging tool has a length greater than 6 feet, and the borehole collapsed to a depth of 11 feet despite efforts to maintain the integrity of the borehole.

The alluvium at Test Well No. 99-1 is composed of coarse-grained materials ranging in size from coarse-grained sand to cobbles with a diameter of approximately 10 inches. Descriptions of the lithologic samples collected during drilling are included in Appendix C. The water level in the open borehole rose to a depth of 3 feet below ground level. The borehole was plugged using a cement slurry from the total depth of the borehole to approximately 6 inches below ground level on December 2,1999.

Test Well No. 99-2

D.C. Drilling mobilized on the Test Well No. 99-2 site on November 19, 1999 and drilled the test well to a total depth of 20 feet. Drilling was terminated at 20 feet because the drill cuttings indicated that the total thickness of the alluvium at the test well site is 16.5 feet. It was decided to

not geophysically log the test well because the alluvium is only 16.5 feet thick, the geophysical

logging tool has a length greater than 6 feet, and the borehole collapsed to a depth of 10 feet despite efforts to maintain the integrity of the borehole.

The alluvium at Test Well No. 99-2 is composed of coarse-grained materials ranging in size from coarse-grained sand to cobbles with a diameter of approximately 10 inches capped by a %foot thick layer of silt. Descriptions of the lithologic samples collected during drilling are included in Appendix D. The water level in the open borehole rose to a depth of 7 feet below ground level.


FINAL REPORT

The borehole was plugged using a cement slurry from the total depth to approximately 6 inches below ground level on December 2,1999.

4.3 Exploration Well Drilling, Construction, And Testing

Introduction

The test well drilling program indicated that the thickness of the alluvium at the two test well sites was between 14 and 16.5 feet and the drill cuttings removed from the test wells indicated that alluvium is composed of coarse-grained materials that would be likely to yield water to a well.

The original scope of work for the project included drilling, constructing, and pump testing one exploration well at the most favorable test well site. The preliminary exploration well design and the bid schedule prepared by WESTON estimated the exploration well would have a maximum depth of approximately 100 feet. Based on the results of test well drilling, an exploration well at either of the test well sites would have a maximum depth of 21 feet. Because (1) the thickness of the alluvium was significantly different than the preliminary estimates, (2) the quantities bid by the

contractor were significantly different than revised exploration well designs, (3) drilling and well completion methods for shallow exploration wells would be different than those provided in the project specifications, and (4) because it was possible that two exploration wells could be drilled,

constructed, and tested for the same or a lower price than the original exploration well, WESTON presented the idea of completing exploration wells at both test well sites to the Baggs Town Council and the WWDC. After gaining approval from both parties, WESTON developed revised preliminary well diagrams and revised exploration well bid schedules and solicited a revised bid from D.C. Drilling for drilling, constructing, and testing two shallow exploration wells. The total cost of the revised bid submitted by D.C. Drilling was less than the cost of the original bid schedule and D.C. Drilling was given notice to complete two exploration wells.

Exploration Well No. 99-1

Exploration Well Drilling and Completion. A 24-inch diameter hole for surface casing was drilled to a depth of 21 feet using a Texoma 600 auger rig on December 2, 1999. Fresh water

mixed with bentonite drilling mud, soda ash, and a polymeric drilling fluid was used as drilling fluid to keep the borehole from collapsing while the screen and casing string was installed.

The placement of the screens and the final construction details of the Baggs Exploration Well 99- 1 are shown in Figure 2. Table 5 is a summary of the well materials and history for the Baggs Exploration Well 99-1. Appendix E contains a detailed well history. Screens were placed in the well from a depth of 6 to 16 feet to allow the entrance of groundwater from the alluvium into the aquifer. Screen was not installed above 6 feet to allow the installation of a cement surface seal from 4.5 feet below grade to the ground surface.

After the casing and screen assembly was set in position, the gravel pack was installed. The 8x12 Colorado silica sand was poured into the annular space and allowed to settle overnight

DEPTH CONSTRUCTION DETAILS

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16 -INCH DIAMETER BOREHOLE I -:: '\

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-5 12-INCH NOMINAL DIAMETER I STEEL CASING

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STATIC WATER LEVEL = 7.29 FEET I (12/17/99)

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8x12 SAND PACK FROM 5.5 FEET TO -10 TOTAL DEPTH CAPPED WITH 1 FOOT

OF 10x20 SAND I

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I 12-INCH NOMINAL DIAMETER STANDARD ki STRENGTH STAINLESS STEEL V-SLOT W '15 U,

SCREEN WlTH 0.050-INCH SLOTS I

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T.D. = 21 FEET I

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/'L BAGGS ALLUVIAL WELL PROJECT

WESTON EXPLORATION WELL NO. 99-1 AS-BUILT DIAGRAM

GROUNDWATER ENGINEERING FIGURE 2

TABLE 5


Baggs Test Well No. 99- 1 Baggs Exploration Well No. 99- 1

Owner: Town of Baggs, Wyoming and Wyoming Water Development Town of Baggs, Wyoming and Wyoming Water Development Commission Commission .

State Engineer Permit No./Statement UW 118635 of Claim No./Date of Priority:

Location: NE 114, SE 114, Section 5, T 12 N, R 91 W NE 114, SE 114, Section 5, T 12 N, R 91 W

Surface Elevation: Approximately 6,253 feet (MSL) Approximately 6,253 feet (MSL)

Total Depth: 20 feet below ground surface 21 feet below ground surface

Formations: Quatemary Alluvium = 0 - 14 feet Wasatch Formation = 14 - 20 feet

Quatemary Alluvium = 0 - 14 feet Wasatch Formation = 14 - 21 feet

Hole Diameter: 0-20ft = 6 1/4 -inch 0 - 21 ft = 24-inch

Casing: None installed +1.5 - 21 ft = 12 3/4-inch O.D. 0.375-inch wall thickness, welded steel casing and 12-inch pipe size, v-slot, standard strength, 50- slot stainless steel screen (Johnson Screen)

Screened Intervals: None installed 6 - 16 feet

Drilling and Completion Dates: November 18,1999 (plugged/abandoned December 2,1999) December 2 - 5,1999

Testing Dates: Not tested December 15 - 16,1999

Engineering and Geology: Weston Engineering, Inc. (Laramie, Wyoming) Weston Engineering, Inc.(Laramie, Wyoming)

Drilling Contractor I Equipment: D.C. Drilling Co. (Lusk, WY) / Midway 800 direct rotary rig D.C. Drilling Co. (Lusk, WY) I Midway 800 direct rotary rig

Geophysical Logging Contractor Not Logged Not Logged

Date of Geophysical Logging Not Logged Not Logged


FINAL REPORT

before tagging thefop of the sand at 5.5 feet below ground level. The 8x12 Colorado silica sand was then capped with one foot of fine-grained sand (10x20 sieve size) to prevent migration of cement into the screens. Surface casing was set from ground level to a depth of five feet and a cement seal consisting of Portland Type 1/11 grout was installed in the annular space from the top of the fine-grained sand to the ground surface.

After allowing the cement seal to cure for 18 hours, well development began using flushing, jetting, and air lifting techniques. Water used during flushing and jetting was obtained from the Little Snake River and was chlorinated to a concentration of approximately 50 mg/L. Total development time was approximately 12 hours. The produced water was clear with no trace of sand at the conclusion of development.

Step-Drawdown Testing. Step-testing of the Baggs Exploration Well 99-1 was conducted on December 15, 1999, following well drilling, construction, and development. A submersible test pump was installed at a depth of 20.5 feet. A 10-PSI pressure transducer, connected to an In- Situ Hermit 3000 datalogger, was installed in the well at a depth of 20.75 feet below the top of the casing. The transducer cable was firmly secured to the wellhead using duct tape to prevent movement of the transducer during pump testing. The pressure transducer was used to monitor the water level in the well during pump testing. The pumping rate of the well was controlled through use of a gate valve and the rate was monitored using a stop watch and a calibrated 5- gallon bucket. The initial pumping rate was 10 gpm; however, after pumping the well at 10 gpm for 40 minutes the water level reached the pump intake and the pump test was stopped. After the well was allowed to recover for a few minutes the pump was restarted and the well was pumped at a rate of 7 gpm for one hour, at which time the water level again dropped to the pump intake. Pumping was stopped and the well was allowed to recover. The well recovered to within 98 percent of the pre-pumping water level in 70 minutes. Drawdown data from the datalogger are presented in Appendix F.

Constant-Discharge Drawdown/Recovery Test. Because the step-test indicated the alluvium in the vicinity of Exploration Well 99-1 is not capable of yielding sufficient water to meet the desired production rate of 150 gpm, it was decided to pump the well at a rate of 5 gpm for 24 hours. The monitoring equipment used during the step-test was also used during the 24-hour test. Utilizing the transducer and Hermit allowed drawdown to be measured and recorded without constant manual supervision. Drawdown data for the constant-discharge test are provided in Appendix F. Power for the pump was obtained from a diesel powered generator. The contractor had a representative on the site throughout the duration of the test to monitor the equipment for any problems. The 24-hour test was conducted to determine hydrogeologic charack?ristics of the alluvial aquifer in the vicinity of the exploration well.


FINAL REPORT

Figure 3 illustrates lhe constant-discharge test data for Exploration Well No. 99-1 using the semi- logarithmic method developed by Cooper and Jacob (1946). Analysis of the data depicted in Figure 3 indicates the following:

The early-time transmissivity is 5,500 gallons per day per foot

(g pdfft).

A late-time transmissivity of 2,315 gpdlft is represented by the slope after approximately 500 minutes of pumping.

The reduction in effective transmissivity with longer pumping duration indicates that the transmissivity of the alluvial aquifer decreases with distance from the well. Additionally, the rate of drawdown observed during pump testing did not diminish, as would have been expected if the cone of depression intercepted a recharge boundary, such as a surface water body. The absence of a recharge boundary indicates that the alluvium penetrated by the exploration well is not in direct hydraulic communication with the Little Snake River. Fine-grained silts may be deposited on the river bed, which would reduce the degree of hydraulic communication between the river and the alluvium at the well site.

Analysis of the recovery data collected following the termination of pumping produces a higher transmissivity compared to the constant-discharge test. The transmissivity calculated using the straight-line, semi-logarithmic method (Cooper and Jacob, 1946) is 6,285 gpdlft for the pumped well (Figure 4). Collection of recovery data using the datalogger was terminated after 168 minutes. A water level reading taken 1 ,I 18 minutes after cessation of pumping indicated the well had 0.042 feet of residual drawdown, which represents 97.2 percent recovery.

Pump Testing Summary. Results of the Baggs Exploration Well No. 99-1 pumping tests are summarized in Table 6. A step-test was performed to determine well performance characteristics and determine the pumping rate for the constant-discharge test. Aquifer characteristics were determined using constant-rate pumping and recovery tests.

Table 6 shows that the aquifer characteristics calculated using the pump test and recovery data are different, but are within the same order of magnitude. Based on recovery (non-pumping) data, testing determined that the aquifer developed by this well has an apparent effective transmissivity of 6,285 gpdlft. The alluvial aquifer around the exploration well has a low transmissivity and a small saturated thickness, which results in low yields to wells.

BAGGS EXPLORATION WELL NO. 99-1 CONSTANT-DISCHARGE TEST DATA

1 10 1 00

ELAPSED TIME (MIN)

1000 10000

FIGURE 3

BAGGS EXPLORATION WELL NO. 99-1 CONSTANT-DISCHARGE TEST RECOVERY DATA

100 1000 10000

TIT' (DIMENSIONLESS)

100000 1000000

FIGURE 4


FINAL REPORT

TABLE 6

SUMMARY OF PUMPING TEST ANALYSES EXPLORATION WELL NO. 99-1

TYPE OF WELL RADIUS METHOD OF TRANSMlSSlVlN TEST (Feet from - ANALYSIS (g pdlft)

Pumping Well)

Constant- Pumped discharge Well 0.41 ft Cooper & Jacob 5,500

(drawdown) (1 946) (early time)

Constant- Pumped discharge Well 0.41 ft Cooper & Jacob 2,315

(drawdown) (1 946) (late time)

Constant- Pumped

discharge Well 0.41 ft Cooper & Jacob 6,285 (recovery) (1 946)

Water Quality. Water pumped during the step- and constant-discharge tests was sampled

periodically in the field and analyzed for pH and electrical conductivity. Field-measured data show that the pH and conductivity fluctuated slightly throughout the tests, with the pH varying from 7.0 to 7.3 and the conductivity varying from 480 to 500 pmhoslcm.

Because pump testing of Exploration Well No. 99-1 indicated that the well was not capable of producing sufficient quantities of water to meet the needs of Baggs, WESTON proposed limiting the extent of water quality analyses. After gaining approval from the WWDC, samples of the water developed from Exploration Well No. 99-1 were collected for a domestic potability analysis. The samples were tested for major cations and anions, hardness, pH, total dissolved solids, and nitrates. The laboratory report is provided in Appendix G.

The overall quality of the water developed from Exploration Well No. 99-1 is good. Table 7 compares the results of the analyses to the U.S. Environmental Protection Agency's (EPA) drinking water standards. Total Dissolved Solids (TDS), a general indication of water quality, is 300 mg/L, which is well below the EPA maximum contaminant level of 500 mg1L. Water developed by the well does not exceed any of the drinking water standards for any of the constituents analyzed, with the exception of iron. The standard set for iron is for aesthetic purposes; the elevated iron concentration does not pose a health risk to consumers but is likely to cause staining of plumbing fixtures and clothing.

TABLE 7 BAGGS EXPLORATION WELL NOS. 99-1 AND 99-2

RESULTS OF WATER QUALITY ANALYSES AND COMPARISON WITH EPA DRINKING WATER STANDARDS

PARAMETERS (mg/L except as noted)

Calcium

Potassium Sulfate Chloride Bicarbonate

' ~ ~ r ~ ~ ~ ~ N ~ o t a l Dissolved Solids Conductivity (micromhos/cm) Hardness (grainsfgal) Hardness (mg CaC03)

EPA MAXIMUM CONTAMINANT

LEVEL

Exploration Well NO. 99-1 12/16/99

Exploration Well NO. 99-2 12/12/99

76.5 22.8 122 NA 345 N A N A N A 0.2 470 N A 17

285 NA

NS= No Standard; NA= Not Analyzed; Laboratory data sheets contained in Appendix G.


FINAL REPORT

Exploration Well No. 99-2

Exploration Well Drilling and Completion. A 24-inch diameter hole for surface casing was drilled to a depth of 21.5 feet using a Texoma 600 auger rig on December 2, 1999. Fresh water mixed with bentonite drilling mud, soda ash, and a polymeric drilling fluid was used as drilling fluid to keep the borehole from collapsing while a temporary liner was installed. Screens were not

ordered for Exploration Well No. 99-2 until after the WWDC and the Town of Baggs approved completing the well. To save mobilization costs for the auger rig, both boreholes for the exploration wells were drilled on the same day and a temporary liner was installed in the

Exploration Well No. 99-2 borehole to keep the hole open until the screen and casing arrived.

The screen and casing assembly arrived on site on December 4, 1999 and the contractor discovered collapsed material in the temporary liner. On December 6, 1999 the auger rig returned to the well site to clean out the borehole. The auger rig cleaned out the borehole and the screen and casing assembly was installed.

The placement of the screens and the final construction details of Exploration Well 99-2 are shown in Figure 5. Table 8 is a summary of the well materials and history for the Baggs Exploration Well 99-2. Appendix E contains a detailed well history. Screens were placed in the

well from a depth of 6.5 to 16.5 feet to allow the entrance of groundwater from the alluvium into the aquifer. Screen was not installed above 6.5 feet to allow the installation of a cement surface seal from 4.5 feet below grade to the ground surface.

After the casing and screen assembly was set in position, the gravel pack was installed. The 8x12 Colorado silica sand was poured into the annular space and allowed to settle overnight

before tagging the top of the sand at 5.0 feet below ground level. The 8x12 Colorado silica sand was then capped with one-half foot of fine-grained sand (10x20 sieve size) to prevent migration of cement into the screens. Surface casing was installed in the well to a depth of five feet and a

cement seal consisting of Portland Type 1/11 grout was installed in the annular space from the top of the fine-grained sand to the ground surface.

After allowing the cement seal to cure for 18 hours, well development began using flushing, jetting, and air lifting techniques. Water used during flushing and jetting was obtained from the Baggs Water Treatment Plant and was chlorinated to a concentration of approximately 50 mg/L. Total development time was approximately seven hours. During jetting of the well the ground around the surface seal washed out. The void was filled with cement and allowed to cure before continuing development. The produced water was slightly cloudy at the conclusion of development.

Well And Aquifer Testing. Step-testing of the Baggs Exploration Well 99-2 was attempted on December 17, 1999, following well drilling, construction, and development. A submersible test pump was installed at a depth of 20.5 feet. A 10-PSI pressure transducer, connected to an In- Situ Hermit 3000 datalogger, was installed in the well at a depth of 20.75 feet below the top of

DEPTH CONSTRUCTION DETAILS

- 0 STEEL SURFACE CASING I CEMENTED IN PLACE

I

CEMENT GROUT I

16 -INCH DIAMETER BOREHOLE I

-5 12-INCH NOMINAL DIAMETER

I STEEL CASING

I

I

I STATIC WATER LEVEL = 8.71 FEET (1 211 7/99) 8x12 SAND PACK FROM 6 FEET TO

-10 TOTAL DEPTH CAPPED WITH 1 FOOT OF 10x20 SAND

I

I

I

I 12-INCH NOMINAL DIAMETER STANDARD ki STRENGTH STAINLESS STEEL V-SLOT W '15 LL SCREEN WlTH 0.050-INCH SLOTS

I

I

I

I

= 20

I

WELDED CAPAT21.5 FEET I

T.D. = 21.5 FEET I NOT TO SCALE I

- 25 I

I

I

I

-30

fT BAGGS ALLUVIAL WELL PROJECT

WESTON EXPLORATION WELL NO. 99-2 AS-BUILT DIAGRAM

GROUNDWATER ENGINEERING FIGURE 5

TABLE 8


Baggs Test Well No. 99- 2 Baggs Exploration Well No. 99- 2

Owner: Town of Baggs, Wyoming and Wyoming Water Development Town of Baggs, Wyoming and Wyoming Water Development Commission Commission

State Engineer Permit No.lStatement UW 118636 of Claim No.lDate of Priority:

Location:

Surface Elevation:

SE 114, SE 114, Section 5, T 12 N, R 91 W

Approximately 6,255 feet (MSL)

SE 114, SE 114, Section 5, T 12 N, R 91 W

Approximately 6,255 feet (MSL)

Total Depth: 20 feet below ground surface 21.5 feet below ground surface

Formations:

Hole Diameter:

Casing:

Screened Intervals:

Quaternary Alluvium = 0 - 16.5 feet Wasatch Formation = 16.5 - 20 feet

0-20ft = 6114-inch

None installed

None installed

Quaternary Alluvium = 0 - 16.5 feet Wasatch Formation = 16.5 - 21.5 feet

+1.5 - 21.5 ft = 12 314-inch O.D. 0.375-inch wall thickness, welded steel casing and 12-inch pipe size, v-slot, standard strength, 50-slot stainless steel screen (Johnson Screen)

6.5 - 16.5 feet

Drilling and Completion Dates: November 19,1999 (pluggedlabandoned December 2,1999) December 2 - 15,1999

Testing Dates: Not tested December 17 - 18,1999

Engineering and Geology: Weston Engineering, Inc. (Laramie, Wyoming) Weston Engineering, Inc.(Laramie, Wyoming)

Drilling Contractor 1 Equipment: D.C. Drilling Co. (Lusk, WY) 1 Midway 800 direct rotary rig D.C. Drilling Co. (Lusk, WY) I Midway 800 direct rotary rig

Geophysical Logging Contractor Not Logged Not Logged

Date of Geophysical Logging Not Logged Not Logged


FINAL REPORT

the casing. The transducer cable was firmly secured to the wellhead using duct tape to prevent

movement of the transducer during pump testing. The pressure transducer was used to monitor the water level in the well during pump testing. The pumping rate of the well was controlled through use of a gate valve and the rate was monitored using a stop watch and a calibrated 5-

gallon bucket. The initial pumping rate was five gpm; however, after pumping the well at that rate for 20 minutes the water level declined to the pump intake and the pump test was stopped. The well recovered to within 99 percent of the pre-pumping water level in 1,360 minutes. Because the well was incapable of yielding five gpm, no further pump testing was conducted. Drawdown data

from the datalogger are presented in Appendix F.

Figure 6 illustrates the pump test data for Exploration Well No. 99-2 using the semi-logarithmic method developed by Cooper and Jacob (1946). Analysis of the data depicted in Figure 6 indicates that the transmissivity of the alluvial aquifer in the vicinity of the well is 42 gpdlft.

Analysis of the recovery data collected following the termination of pumping produces a lower transmissivity compared to the constant-discharge test. The transmissivity calculated using the

straight-line, semi-logarithmic method (Cooper and Jacob, 1946) is 7 gpdlft for the pumped well (Figure 7). The recovery data shows that the well fully recovered following pump testing.

Pump Testing Summary. Results of the Baggs Exploration Well No. 99-2 pumping tests are summarized in Table 9. A step-test was attempted in order to determine well performance characteristics and determine the pumping rate for the constant-discharge test. However, the

well would not sustain a pumping rate greater than five gpm for more than 20 minutes and the test was discontinued. Aquifer characteristics were determined using the abbreviated pump test and the recovery data.

Table 9 shows that the aquifer characteristics calculated using the pump test and recovery data

are different. The transmissivity determined from the recovery data is probably more accurate than the pump test data because the recovery data is not influenced by turbulence from the pump or by minor adjustments made to the pumping rate. Based on recovery (non-pumping) data, testing determined that the aquifer developed by this well has an apparent effective transmissivity of 7 gpdlft. The alluvial aquifer around the exploration well has a low transmissivity and a small saturated thickness, which results in low yields to wells.

Water Quality. Water pumped during the pump test was sampled in the field and analyzed for pH and electrical conductivity. Field-measured data show that the pH fluctuated between 7.2 to 7.4 and the conductivity increased from 940 ymhoslcm at the beginning of the test to 1,400

ymhoslcm at the end of the test. The increase in conductivity was probably the result of

withdrawals of water used for jetting being pumped from the well.

Because pump testing of Exploration Well No. 99-2 indicated that the well was not capable of producing sufficient quantities of water to meet the needs of Baggs, WESTON proposed limiting

the extent of water quality analyses. After gaining approval from the WWDC, samples of the

BAGGS EXPLORATION WELL NO. 99-2 PUMP TEST DATA

1

ELAPSED TIME (MIN)

100

FIGURE 6

BAGGS EXPLORATION WELL NO. 99-2 PUMP TEST RECOVERY DATA

1 00

TK' (DIMENSIONLESS)

10000

FIGURE 7


FINAL REPORT

TABLE 9

SUMMARY OF PUMPING TEST ANALYSES EXPLORATION WELL NO. 99-2

- -

TYPE OF WELL RADIUS METHOD OF TRANSMlSSlVlTY TEST (Feet from ANALYSIS (g pdfft)

Pumping Well)

Constant- Pumped discharge Well 0.41 ft Cooper & Jacob 42

(drawdown) (1 946)

Constant- Pumped discharge Well 0.41 ft Cooper & Jacob 7

(recovery) (1 946)

water developed from Exploration Well No. 99-2 were collected for an abbreviated potability analysis. The samples were tested for major cations and anions, hardness, total dissolved solids, and nitrates. The laboratory report is provided in Appendix G.

The overall quality of the water developed from Exploration Well No. 99-2 is marginal. Table 7

compares the results of the analyses to the U.S. Environmental Protection Agency's (EPA) drinking water standards. Total Dissolved Solids (TDS), a general indication of water quality, is 470 mg/L, which meets the EPA maximum contaminant level of 500 mg/L. Water developed by the well exceeds the drinking water standards for sodium and sulfate, with concentrations of 122 and 345 mg/L, respectively. The standards for these constituents are 115 and 250 mg/L, respectively.


FINAL REPORT

5.0 CONCLUSIONS AND RECOMMENDATIONS

Baggs Test Well Nos. 99-1 and 99-2 were drilled in December 1999. Although the test wells indicated that the alluvium in the Baggs area is less than 20 feet thick, the cuttings were coarse- grained sand, gravel, and boulders and appeared to have sufficient permeability to yield large quantities of water to wells. Two exploration wells were drilled and constructed in the immediate vicinity of the respective test wells to evaluate the productivity of the alluvial aquifer at the well sites. Subsequent pump testing of the exploration wells indicated that the alluvial aquifer in the vicinity of the test wells is not capable of yielding sufficient groundwater to meet the needs of the Town of Baggs. The exploration wells were plugged and abandoned on April 13, 2000.

Given the low yield of the alluvium in the Town of Baggs, WESTON recommends that future groundwater development efforts be concentrated on other aquifers.

Appendix A - References Cited

REFERENCES CITED

Bradley, W.H., 1961, Geologic map of a part of southwestern Wyoming and adjacent areas: U.S. Geological Survey Miscellaneous Geologic Investigations Map 1-332.

Collentine, M. and others, 1981, Occurrence and characteristics of ground water in the Great Divide and Washakie Basins, Wyoming: Water Resources Research Institute, University of Wyoming report to U.S. Environmental Protection Agency, vol. VI-A.

Cooper, H.H. and Jacob, C.E., 1946, A generalized graphical method for evaluating formation constants and summarized well field history: American Geophysical Union Transactions, vol. 27, pp. 526-534.

Good, L.W., 1960, Geology of the Baggs area, Carbon County, Wyoming: Unpublished M.A. thesis, university of Wyoming, 90 pp.

Welder, G.E. and McGreevy, L.J., 1966, Ground-water reconnaissance of the Great Divide and Washakie Basins and some adjacent areas, southwestern Wyoming: U.S. Geological Survey Hydrologic lnvestigations Atlas HA-21 9

Western Water Consultants, 1992, Little Snake River Basin Planning Study, Vol. I, Evaluation of the

Baggs water supply, treatment, and delivery system: Consultant's report submitted to the Wyoming Water Development Commission.

Baggs Alluvial Well Project References Cited Appendix A - Page 1

Appendix B - Well Siting Study

Surnmaty Report - TOWN OF BAGGS WELL SITING STUDY

TABLE OF CONf ENTS

OBJECTIVES

SCOPE OF WORK

GEOLOGICAL DATA

FINDINGS

REFERENCES

PAGE - 1

LIST OF TABLES

TABLE 1 DATA FROM WELLS IN THE BAGGS STUDY AREA 4 TABLE 2 COMPARISON OF PROPOSED TEST WELL SITES 5

LlST OF FIGURES

FIGURE 1 LOCATION W AND STUDY AREA WITH SELECTED WElLS 2 FIGURE 2 GEOLOGIC CROSS SECTION A-A' 3

August 10,1999

Summary Report - TOWN O f BAGGS WELL SITtNG STUDY

OBJECTIVES

The objective of the scope of work was to determine if favorable well sites exist in the Town of Baggs in Carbon County, Wyoming. The study area is outlined on Figure 1. The study area includes the northwest corner of Township 12 North, Range 91 West and the northeast corner of Township 12 North, Range 6 West of the 6'h P.M.

SCOPE OF WORK

To determine if favorable well sites exist in the study area, Weston Engineering, lnc. completed the following tasks:

Obtained and reviewed published geologic and hydrogeologic reports of the area;

Examined infrared aerial photugraphs of the Little Snake River flood plain in the vicinity of Baggs;

Compiled lithologic logs and production data of local wells from the files of the Office of the Wyoming State Engineer;

Constructed a geologic cross section to identify and estimate thickness of target aquifer;

Identified potential test well sites and estimated drilling depths;

Evaluated three well sites; and

Conducted an on-site visit of proposed test well sites.

GEOLOGIC DATA

This section indudes a summary description of the surface and subsurface geology in the vicinity of the Town of Baggs. The purpose of this section is to identify and characterize the extent of the unconsolidated allwial aquifer in the Little Snake River flood plain.

The study area lies within the Baggs 7.5 minute quadrangle. Bradley (1961) and Welder and McGreevy (1 966) mapped the geology of the area at a scale of 4:250,000 and Good (1960) mapped the geology of the 6aggs area at a scale of 1:28,000. One interpretation of the subsurface geology using the data reported on the surface geology, coupled with the lithologic logs from driller's logs of local wells, is depicted in the geologic cross section presented in Figure 2 (the location of cross section A-A' is shown on Figure I). Driller's logs represent the best available data on thiduless of the alluvium; however it is possible these wells did not completely penetrate the alluvium.

batemery unconsolidated deposits. Unconsolidated deposits in the Little Snake River valley consist of the Quaternary alluvial sands, silt, gravel, and clay. These deposirts have a maximum reported thickness of 70 feet and typically provide yields of approximately 25 to 50 gallons per minute {Collentine and others, 1981). Quaternary alluvium unconfmbly overlies the Tertiary We&& F amation (Figure 2).

Weston Engineering, Inc. August 10,1999

Si+c do. 2 S h 1 w e Sd.3 S o d h No + I ,

1 rm J t L f L a

TOWN OF BAGGS WELL SmNG STUDY

FINDINGS

Review of the water well records within the study area indicates that several shallow (typically less than 40 feet deep) wells have been installed in the area. Tabie 1 provides pertinent information on four key wells that have been completed in the Baggs vicinity. Locations of these wells are included in Figure 1. Typical well yields from the unconsolidated alluvium are 5 to 50 gallons per minute (gpm). Previous reports indicate that water quality in this aquifer is good with total dissolved solids Jess than 1 0 0 mgll (Welder and McGreevy, 1966 and Coilentine and others, 1981). However, review of data from the University of Wyoming Water Quality Database indicates that water quality varies considerably in the 0aggs area.

TABLE 1 DATA FROM WELLS IN THE BAGGS STUDY AREA

Test Well Sites

Three potential test weH sites were evaluated for this study. The potential sites were chosen based on hydmgeologic and engineering considerations. Although all of the welk would target Quaternary alluvium, the thickness of the alluvium may vary at each site. In addition, due to the lack of verifiable data, variations of water quality from site to site are unknown. Table 2 provides a comparison of the potential sites and lists the perceived advantages and disadvantages of each. The location of each site is shown in Figure 1, and each site is briefly discussed below.

i

Well Pemdt Number

29712

75496

63832

Test Well Site No. I This site was seleded because it is adjacent to the existing water treatment plant within the Town of 0;tggs -ate limits (Figure I), The well site is situated across from where Muddy Creek flows into the Little Snake River, allowing for the possibility of a thicker sequence of elluvial materials. In addition, an abandoned well at this site reportedly produced 50 gpm (Wyoming Well Inventory). Limited data indicate water quality in this area is good. A possible disadvantage is that the alluvium m y be relatively thin at this site (see Table 1).

Test Wet1 Site No. 2 This well has the advantage of being easily accessible from Wyoming Highway 789. The site is situated on alluvium deposited by Muddy Creek and the LiW Snake River. ftw test well

Total Depth (feet)

30

30

39

w8ston Engineering, Inc. August 10,1999

Static Water (feet)

15

9

5

151 73 I 0 22

Capacity (gpm)

25

10

Estimated Thickness of

Alluvium (feet)

18

30+?

50 22+?

20 39+?

Summary Report T O W OF BAGGS WELL SITING STUDY

would test for the potential of a greater saturated thickness due to contribution of sediment from both streams. This site has the disadvantage of being located outside the town limits and is farther from the existing infrastructure than the other two sites. Another possible disadvantage is that the contribution of water Fram Muddy Creek to the aquifer may lower water quality at this site.

Test Well Ste No. 3 This site was selected because it is located approximately 1,700 feet south of the treatment plant, is easily accessible, and can be more easily incwporated into the existing infrastructure than Site No. 2. Completion of this test well, along with a test well at Site No. 1 would provide important information as to the distribution of alluvium along the southern portion of the Little Snake River flood plain. The disadvantage of this site is that water quality is unknown.

TABLE 2 COMPARISON OF PROPOSED TEST WELL SITES

August 10,1999

Disadvantages Advantages Proposed Site No. Location

No. I NE %, SE % section 5

Easily accessible Adjacent infr;rstructute Reportedly produces 50 gpm Inside town limits Across the river from the mouth of Muddy Creek

Atlwlurn may be relatively thin

No. 3

1

No. 2

r:

NW %, PJE M W i n 5

. Easily accessibie Potentially greater saturated thickness Important geologic infofmation

Paucity of geologic data Outside twvf~ limits Water qualify is unknown

Water quality b unknown

J

SW %, SW?/4 Section 4

*

Easily accessible Proximate to existing infrastructure important $dogie infomation

TOWN OF BACGS WELL SKiNG STUDY

REFERENCES

Bradley, W.H., 1961, Geologic map of a part of southwestern Wyoming and adjacent areas: U.S. Geologicel Survey Miscellaneous Ge~logic Investigations Map 1-332.

Coilentine, M., Libra, R., Feathers, K.R., and Hamden, t., 1981, Occurrence and characteristics of ground water in the Great Divide and Washakie Basins, Wyoming: Water Resources Research Institute, University of Wyming Report to U.S. Environmental Protection Agency, volume VI-A.

Good, L.W.. 1960, Geobgy of the Baggs area, Carbon County, Wyoming: Unpublished M.A. thesis, University of Wyoming, 90 p.

U.S. Geological Survey, 1982, Topagraphic Map of the Beggs Quadrangle, Wyoming and Colorado. Scale 1 :24,000.

University of Wyoming, Water Resources Data System, Water Quality Database.

Wel&, G.E., and McGreevy, 1. J., 1966, Ground-water reconnaissance of the Great Divide and Washakie Basins and some adjacent areas, southwestern Wyoming: U.S. Geological Survey Hydrologic Investigations Atlas HA-21 9.

Wyoming Well Inventory, pfepared by the State Engineer's Office.

August 10,1999

Appendix C - Project Permits

FORM U W 6 nev 3 99

STATE OF WYOMING OFFICE OF THE STATE ENGINEER

HERSCHLER BUILDING CHEYENNE, WYOMING 82002

(307) 777-5959 STATEMENT OF COMPLETION AND DESCRIPTION OF WELL OR SPRING

I NOTE: Do not fold this form. Use typewriter 1 or print neatly with black ink. 1

PERMIT NO. U.W. 1 1.96 35 NAME OF WELL (SPRING) TOWN OF BAGGS TEST WELL PO 1

1. NAME OF OWNER T C l n p R a c , r , s . p ~ ~ ~ ~ r~01\6 -

.o. LJflx 300 2. ADDRESS P Please check 11 address has changed from that shown on permit. q

City 6"')3 x State WY Zip Code (7 2 .7 7 j Phone No. 383 - 733s 3. USE OF WATER: Domestic Stock Watering Irrigation Municipal 0 Industrial C] Miscellaneous

Monitor or Test 0 Coal Bed Methane Explain proposed use (Example: One single family dwelling)

4. LOCATION OF WELL (SPRING): R/g% &% of Section ' . T. & N.. R. a W., of the 6th P.M. (or W.R.M.),

Subdivision Name . Lot Block

If surveyed, bearing, distance and reference point:

5. TYPE OF CONSTRUCTION: rilled dm Dug 0 Driven Other0

Describe: 7 i C r o - /=UP A

6. CONSTRUCTION: Total Depth of WelVSpring 2/.5 ft. Depth to Static Water Level 5 ft. (Below land surface)

a. Diameter of borehole (Bit size) 2 Y inches.

b. Casing Schedule New Used

I 2 &diameter from $/II ft. to ?! ft. Material F T ~ Gage vQ diameter from ft. to ft . Material Gage

c. Was casing cemented: Yesm N o 0 Cemented Interval, From 0 feet to Y.S feet.

d. Number of sacks of cement used type of cement / ? d 4 / 4 d

e. Perforations: Type of perforator used f l?k Size of perforations inches by inches.

Number of perforations and depths where perforated: perforations from ft. to feet. perforations from ft. to feet.

f. Was well screen iystalled? YesB No N

Diameter: /2 - slot size: Q FQ set from 6 0 feet to 16. 0 ' . Diameter: slot size: set from feet to

g. Was well gravel packed? Yesp No Size of gravel 8 k /2

h. Was surface casing used: Y e s p No 0 Was it cemented in place? Yes &3 No 0

7. NAME & ADDRESS OF DRILLING COMPANY D. C. Dyt 711%- [LLJ c. UP) 8. DATE OF COMPLETION OF WELL (includina pump installation)OR SPRING (first used) M A

9. PUMP INFORMATION: Manufacturer Type Source of power Horsepower Depth of Pump Setting or intake Amount of Water Being Pumped Gallons Per Minute. (For Springs or flowing welts, see item 10.) Total Volumetric Gallons Used Per Calendar Year.

10. FLOWING WELL (Owner is responsible for control of flowing well). If well yields artesian flow, yield is galJmin. Surface pressure is Ib./sq. inch, or feet of water. The flow is controlled by: valve 0 cap 0 plug Does well leak around casing? Yes No 0

permit NO. U.W. 1 1 5 6 3 5 ~ o o k NO. 897 page NO. 86 SEE REVERSE SIDE

11. If spring, how was it constructed? (Some method of artificial diversion, i.e., spring box, cribbing, etc., is necessary to qualify for a water right.)

12. PUMP TEST: Was a pump test made? Yes No If so, by whom Vufd- 6&;- e e ~ ; ~ , Z*C. Address L 4 6 - i ~ . Up Y~eld: 5 - gal.1min. with 1, 5 foot drawdown after 2 4 hours. ' Yield: gal.1min. with foot drawdown after hours.

13. LOG OF WELL: Total depth drilled 2 1 . 5 feet. Depth of completed well 2 1 feet. Diameter of well 1 % inches. Depth to first water bearing formation 0 5 feet. Depth to principal water bearing formation. Top a- feet to Bottom feet.

Ground Elevation, if known 6, 2 53 '

DRILL CUTTINGS DESCRIPTION:

14. QUALITY OF WATER INFORMATION: Does a chemical andlor bacteriological water quality analysis accompany this form? Yesm No u It is recommended that chemical and bacteriologic water quality analyses be performed and that the report(s) be filed with the records of this well. (Contact Department of Agriculture. Analytical Lab Services, Laramie, 742-2984.) If not, do you consider the water as: Good Acceptable Poor 0 Unusable

r From To Feet Feet - - - - - - - - -- - - - - - - --- . - - -

.-AJ/-!!&.C.- -- . - . 6 - 1 d - - - .

-1'2- 2 d .- . -- .

REMARKS:

-

- -~

Under penalties of perjury, I declare that I have examined this form and to the best of my knowledge and belief it is true, correct and complete.

3// .aQP!SkL Date

-

FOR STATE ENGINEER'S USE ONLY

Date of Receipt ,19- ate of Approval ,19-

-

--

Date of Priority SEPTEMBER 1, 1,w for State Engineer

--

--

--

-

-

FORM U W 5 ( I ! - -

Rev. 3-95 FILING FEE SCHEDULE ON REVERSE SIDE

STATE OF WYOMING b I

.<. I

OFFICE OF THE STATE ENGINEER $fi'. ," ,I . \ : .

HERSCHLER BLDG., 4-E CHEYENNE, WYOMING 82002 , , I

APPLICATION FOR PERMIT TO APPROPRIATE GROUND WATER

APPLICATION FOR WELLS AND SPRINGS Note: Only springs flowing 25 gallons per minute or less, where the proposed use is

domestic andlor stock watering, will be considered as ground water appropriations.

FOR OFFICE USE ONLY

PERMIT NO U W.

WATER DIVISION NO. U W DISTRICT

Temporary Filing No. U.W. ~228~ NOTE: Do not fold this form. Use typewriter or print neatly

with black ink. ALL ITEMS MUST BE COMPLETED BEFORE

APPLICATION IS ACCEPTABLE

NAME AND NUMBER OF WELL or SPRING 20" n a < &+ 33&ukq9 -1

1 . Name of applicant(s) 70 ,, -9 B .C 5 Idv o m ; 9 - h . U e v a l - r ~ r - t con Phone: 3 o r 3 6.3- r335

2. Address of applicant(s) P'.B~,JC-~ 00 &t!-3- (MAILING ADDRESS) (STATE) (ZIP)

3. Name & address of agent lo receive correspondence and notices A-&A&)c Evdh1e t- ; n=

~ _ d d 8 0 - ? ~ ? 0 3 3 l a r a m ; Q W Y ( c s 7 0 ) ? Phone: 3 0 7 FY5- 6 / / 8 (MAILING ADDRESS) (CITY) (STATE) (ZIP)

4. Use to which the water will be applied:

Domestic: Use of water in 3 single family dwellings or less, noncommercial watering of lawns and gardens totalling one acre or less. Number of houses served? .

1- -1 LLJ Stock Watering: Normal livestock use at four tanks or less within one mile of well or spring. Stockwatering pipelines

and commercial feedlots are a miscellaneous use. Number of stock tanks? . -- 1-1 Irrigation: Watering of commercially grown crops (large-scale lawn watering of golf courses, cemeteries, recreation

Municipal:

Industrial:

areas. eic., is miscellaneous use).

Use of water in incorporated Towns and Cities (use of water in unincorporated towns, subdivisions, improvement districts, mobile home parks, etc. are classified as miscellaneous use).

Long term use of water for the manufacture of a product or production of oillgas or other minerals (oil field water flood operations, power plant water supply, etc.). (Describe in REMARKS)

Miscellaneous: Any use of water not defined under previous definitions such as stockwater pipelines, subdivisions, mine dewatering, mineral I oil exploration drilling, reclamation purposes, potable and sanitary supplies in offices or light manufacturing, animal waste management, etc. Describe miscellaneous use completely:

Monitor. Observation or @ Test Well: (Describe in REMARKS)

5. Location of the well or spring: (NOTE: Quarter-quarter (40 acre subdivision) MUST be shown. EXAMPLE: SE 114 NW 114 of Sec. 12. Township 14 North, Range 68 West.) C h . c . & ~ . n County , Ale 114 S L- 114 of Sec. 5 , T. _L2 N., R. I. of the 6th P.M. (or W.R.M.), Wyoming If located in a platted subdivision, also provide Lot - Block - of the Subdivision (or Add'n) of . Resurvey Location: Tract , (or Lot)

6. Estimated depth of the well or spring is lo 0 feet.

7. (a) MAXIMUM instantaneous flow of water to be developed and beneficially used: A - gallons per minute. NOTE: If for domestic and I or stock use, this application will be processed for a maximum of 25 gallons per minute. For a spring, after approval of this application, some type of artificial diversion or improvement must be constructed to qualify for a water right.

(b) MAXIMUM volumetric quantity of water to be developed and beneficially used per calendar year: o Circle appropriate units: (Gallons) (Acre Feet) A four person family utilizes approximately one (1) acre-foot of water per year or 325,000 gallons.

8. Mark the point(s) or area(s) of use in the tabulation box below.

TABULATION BOX

9. I f for irrigation use: a. Describe MAXIMUM acreage to be irrigated in each 40 acre subdivision in the tabulation box above. b. 0 Land will be irrigated from this well only. c. 0 Land is irrigated from existing water right@) with water from this well to be additional supply. Describe existing water right@)

under REMARKS.

10. If for irrigation use, describe method of irrigation, i.e. center pivot sprinkler, flood, etc.: &f I ;r P &/e

TWP

1 1 5 6 3 5 Permit No. U.W. .. . .

RNG SEC

I

TOTAL NE 114 SW 114

NEW SE 114 NW 1/4

NEW NEW NEW NWW SWW SEN NWW ISWW

i NWW NWIk SEW SEW SWW SWU (SEW

I A/B ,. .

1 1. The well or spring is to be constructed on lands owned by W2-l 06 6 ~ 1 s r l ~ .-

(The granting of a permit does not constitute the granting of right-of-way. If any easement&~ght-of-way is necessary in connection with this application, it should be understood that the responsibility is the applicant's. A copy of the agreement should accompany this application, i f the land is privately owned and the owner is not the co-applicant.)

12. The water is to be used on lands owned by AJn c 4p - h 10 (If the landowner is not the applicant, a copy of the agreement relating to the u s ! o f appropriated water on the land should be submitted to this office. If the landowner is included as co-applicant on the application, this procedure need not be followed.) NOTE: Water rights attach to the area(s) and/or point(s) of use.

Under penalties of perjury, I declare that I have examined this application and to the best of my knowledge and belief it is true, correct and complete.

G - ,19 99 Signature of ~~~licanl/or Authorized Agent / Date

THE LEGALLY REQUIRED FILING FEE MUST ACCOMPANY THlS APPLICATION

DOMESTIC AND/OR STOCK WATERING USES (Domestic use is defined as use of water in 3 single family dwellings or less,

noncommercial watering of lawns and gardens lolalling one acre or less.)

IRRIGATION, MUNICIPAL, INDUSTRIAL, MISCELLANEOUS $50.00

MONITOR (For water level measurements or chemical qualily sampling) or TEST WELL NO FEE

IF WELL WILL SERVE MULTIPLE USES, SUBMIT ONLY ONE (THE HIGHER) FILING FEE.

THlS SECTION IS NOT TO BE FILLED IN BY APPLICANT

THE STATE OF WYOMING ) ) ss.

STATE ENGINEER'S OFFICE ) This instrument was received and filed for record on the 1st day of September . A.D.

1 9 9 9 ,at 9 o'clock a- M.

Permit No. U.W. 118635

THIS IS TO CERTIFY that I have examined the foregoin ct to the following limitations and conditions:

This application is approved subject to the condition that the proposed use shall not interfere with any existing rights to ground water from the same source of supply and is subject to regulation and correlation with surface water rights, i f the ground and surface waters are interconnected. The use of water hereunder is subject to the further provisions of Chapter 169, Session Laws of Wyoming, 1957, and any subsequent amendments thereto.

Granting of a permit does not guarantee the right to have the water level or artesian pressure in the well maintained at any specific level. The well should be constructed to a depth adequate to allow for the maximum development and beneficial use of ground water in the source of supply.

I f the well is a flowing artesian well, it shall be so constructed and equipped that the flow may be shut off when not in use without loss of water into sub-surface formations or at the land surface.

T h i s a p p l i c a t i o n i s f o r t e s t pu rposes o n l y : n o w a t e r will be b v d . T h i s p e r m i t w i l l b e a u t o m a t i c a l l y c a n c e l l e d on December 11. or upm rrprrpigt nf an a r r ~ p t a b l e Sta tement o f Comple t ion . PROOF OF O A T . USE OF GRC)IINT) W A T E R (FOKM U.W. 8) I S WAIVED- PERHIT.

Approval of this application may be considered as authorization to proceed with construction of the proposed well or spring. A Statement of Completion will be filed within thirty (30) days of completion of construction, . , ' ' " "

Completion of construction for the purposes specified in Item 4 of this application will be made by December 3

F State Engineer

FORM U W 6 Rev. 3 99


HERSCHLER BUILDING CHEYENNE, WYOMING 82002

(307) 777-5959 STATEMENT OF COMPLETION AND DESCRIPTION OF WELL OR SPRING

NOTE: Do not told this form. Use typewriter or print neatly with black ink.

PERMIT NO. U.W. 1 18 6 3 6 NAME OF WELL (SPRING) TOWN OF BAGGS TEST WELL

1. NAME OF OWNER 2~- -

2. ADDRESS Please check if address has changed from that shown on permit.

State Zip Code 8 2 3 21 Phone No. 38 3 - 733r 3. USE OF WATER: Domestic Stock Watering Irrigation Municipal Industrial Miscellaneous IJ

Monitor or Test 0 Coal Bed Methane Explain proposed use (Example: One single family dwelling)

4. LOCATION OF WELL (SPRING): f i 1/4 ='/4 of Section s. T. /2 N., R. 41 W.. of the 6th P.M. (or W.R.M.),

Subdivision Name Lot Block

If surveyed, bearing, distance and reference point:

5. TYPE OF CONSTRUCTION: Drilledm D u g 0 Driven 0 Other0 (Type of Rig) .

u.6 3 4 r 4,2

5. CONSTRUCTION: Total Depth of WelltSpring 2 I! r ft.

Depth to Static Water Level 7.2 5 ft. (Below land surface)

a. Diameter of borehole (Bit size) 2 Y inches.

b. Casing Schedule New Used 0 1 2 'diameter from O ft. to z / ft. Material J?e/ Gage 4

diameter from ft. to ft . Material Gage

c. Was casing cemented: Yes@ No Cemented Interval, From 0 feet to 5 feet.

d. Number of sacks of cement used type of cement Rdr /cJ

e. Perforations: Type of perforator used Size of perforations inches by inches.

Number of perforations and depths where perforated: perforations from ft. to feet. perforations from ft. to feet.

f. Was well screen installed? Y e s N No Diameter: 2 ' slot size: 0. set from 6.5 feet to /g - . Diameter: slot size: set from feet to

g. Was well gravel packed? Yesa No IJ Size of gravel 8 X / 2

h. Was surface casing used: Yes [Ea No Was it cemented in place? Yes No O

8. DATE OF COMPLETION OF WELL (jncludina pumD instal1ation)OR SPRING (first used) 9

9. PUMP INFORMATION: Manufacturer Type Source of power Horsepower Depth of Pump Setting or intake Amount of Water Being Pumped Gallons Per Minute. (For Springs or flowing wells, see item 10.) .

Total Volumetric Gallons Used Per Calendar Year.

10. FLOWING WELL (Owner is responsible for control of flowing well). If well yields artesian flow, yield is gal./rnin. Surface pressure is Ib./sq. inch, or feet of water. The flow is controlled by: valve 0 cap 0 plug [7 Does well leak around casing? Yes 0 No

Permit NO. U.W. 118636 87 ~ o o k NO. 8 97 Page NO.

SEE REVERSE SIDE

11. If spring, how was it constructed? (Some method of artificial diversion, i.e., spring box, cribbing, etc., is necessary to qualify for a water right.)

12. PUMP TEST: Was a pump test made? Yes No If so, by whom b$c/.f-oC\ C-;-RM- y H 2. GC Address L 4 --;c. L A L Yield: gal./min. withc I2 fgot drawdown after 0, ,7 hours. Yield: gal./min. with foot drawdown after hours.

13. LOG OF WELL: Total depth drilled Z/. J feet. Depth of completed well 2/. < feet. Drameter of well / 2 rnches. Depth to first water bearing formation 3 feet. Depth to principal water bearing formatron. Top 7 feet to Bottom /G, I feet.

/

62~r Ground Elevation, if known ,-. -_- - ---

DRILL CUTTINGS DESCRIPTION:

14. QUALITY OF WATER INFORMATION: Does a chemical and/or bacteriological water quality analysis accompany this form? Yes No L] It is recommended that chemical and bacteriologic water quality analyses be performed and that the report(s) be filed with the records of this well. (Contact Department of Agriculture, Analytical Lab Services, Laramie, 742-2984.) If not, do you consider the water as: Good Acceptable @ poor 0 Unusable n

) I T M & G - - Type, Texture Color

REMARKS:

Under penalties of perjury, I declare that 1 have examined this form and to the best of my knowledge and belief it is true, correct and complete.

Remarks (Cementing, Shutoff)

3 / / ,aB'LaZ- Date

FOR STATE ENGINEER'S USE ONLY

Date of Receipt . ,I9 - Date of Approval ,19-

ate of priority SEPTEMBER 1 9 1 W v - fnr Ctatn Enninarrr

Indicate Water Bearing Formation & Name

Indicate Perforated Casing Location

FORM U.W. 5 Rev 3-95 FILING FEE SCHEDULE ON REVERSE SlDE


HERSCHLER BLDG., 4-E CHEYENNE, WYOMING 82002

APPLICATION FOR PERMIT TO APPROPRIATE GROUND WATER

APPLICATION FOR WELLS AND SPRINGS Note: Only springs flowing 25 gallons per minute or less, where the proposed use is

domestic andlor stock watering, will be considered as ground water appropriations.

FOR OFFICE USE ONLY

I PERMIT N o u.w. - 118636 I WATER DIVISION NO. / DlST ICT I U W. DISTRICT .- z A Y L ! 1

Temporary Filing No. U.W.

NOTE: Do not fold this form. Use typewriter or print neatly

with black ink. ALL ITEMS MUST BE COMPLETED BEFORE

APPLICATION IS ACCEPTABLE ""; NAME AND NUMBER OF WELL or SPRING I Q W L ~ ~ nf ReTC 5 Te6+ h k I ! P 9 -2

1. Name of applicant(s) fawn 8 /q- Phone:

2. Address of applicant(s) f? 6. 0 0-x 36 o M Y 9233 1 (MAILING ADDRESS) (ST'ATE) (ZIP)

3. Name 8 address of agent to receive correspondence and notices kle Ere- : rr cr P : H. a

_ P. ~ , . - 8ox - . - - 6 0 3 I A a r ~ ; e W Y % 9 Phone: 30 ;t 3 ~ 5 - c t /g (MAILING ADDRESS) (CITY) (STATE) (ZIP)

4. Use to which the water will be applied:

@ Domestic:

1- ---I

:... J Stock Watering:

1 C1 Irrigation:

Municipal:

Industrial:

Miscellaneous:

Use of water in 3 single family dwellings or less, noncommercial watering of lawns and gardens totalling one acre or less. Number of houses served? .

Normal livestock use at four tanks or les; within one mile of well or spring. Stockwatering pipelines and commercial feedlots are a miscellaneous use. Number of stock tanks? .

Watering of commercially grown crops (large-scale lawn watering of golf courses, cemeteries, recreation areas, etc., is miscellaneous use).

Use of water in incorporated Towns and Cities (use of water in unincorporated towns, subdivisions, improvement districts, mobile home parks, etc. are classified as miscellaneous use).

Long term use of water for the manufacture of a product or production of oillgas or other minerals (oil field water flood operations, power plant water supply, etc.). (Describe in REMARKS)

Any use of water not defined under previous definitions such as stockwater pipelines, subdivisions, mine dewatering, mineral I oil exploration drilling, reclamation purposes, potable and sanitary supplies in offices or light manufacturing, animal waste management, etc. Describe miscellaneous use completely:

Monitor. Observation or Test Well: (Describe in REMARKS)

5. Location of the well or spring: (NOTE: Quarter-quarter (40 acre subdivision) MUST be shown. EXAMPLE: SE 114 NW 114 of Sec. 12, Township 14 North, Range 68 West.) 2 a t h - a k. County ,s W 114 5-1.r/ 114 of Sec. 4 , T. LZ. N., R. 41 W. of the 6th P.M. (or W.R.M.),

Wyoming If located in a platted subdivision, also provide Lot - Block - of the Subdivision (or Add'n) of . Resurvey Location: Tract , (or Lot)

6. Estimated depth of the well or spring is 10 0 feet.

7. (a) MAXIMUM instantaneous flow of water to be developed and beneficially used: o gallons per minute. NOTE: I f for domestic and I or stock use, this application will be processed for a maximum of 25 gallons per minute. For a spring, after approval of this application, some type of artificial diversion or improvement must be constructed to qualify for a water right.

(b) MAXIMUM volumetric quantity of water to be developed and beneficially used per calendar year: fi . Circle appropriate units: (Gallons) (Acre Feet) A four person family utilizes approximately one (1) acre-foot of water per year or 325,000 gallons.

8. Mark the point@) or area(s) of use in the tabulation box below.

9. I f for irrigation use: a. Describe MAXIMUM acreage to be irrigated in each 40 acre subdivision in the tabulation box above. b. Land will be irrigated from this well only. c. 0 Land is irrigated from existing water right(s) with water from this well to be additional supply. Describe existing water right(s)

under REMARKS.

lo. If for irrigation use, describe method of irrigation, i.e. center pivot sprinkler, flood, etc.: &o 4- 1 : F a b l o

118636 SEE REVERSE SIDE

Permit No. U.W. . .- 1: 43 7

Book No. -- 8 9 7 Page No.

11. The well or spring is to be constructed on lands owned by f lc7; rH Ct9/soe ; re.- (The granting of a permit does not constitute the granting of right-of-way. If any easement or right-of-way is necessary in connection with this application, it should be understood that the responsibility is the applicant's. A copy of the agreement should accompany this application, i f the land is privately owned and the owner is not the co-applicant.)

12. The water is to be used on lands owned by . u c @ L'ce 6k (If the landowner is not the applicant, a copy of the agreem/er;t relating to the usage of appropriated water on the land should be submitted to this office. If the landowner is included as co-applicant on the application, this procedure need not be followed.) NOTE: Water rights attach to the area@) and/or point(s) of use.

Under penalties of perjury, I declare that I have examined this application and to the best of my knowledge and belief it is true, correct and complete.

, 1 9 2 F = L Signature of Applicant or Authorized Agent Date

THE LEGALLY REQUIRED FILING FEE MUST ACCOMPANY THIS APPLICATION

DOMESTIC AND/OR STOCK WATERING USES (Domestic use is defined as use ol waler in 3 single family dwellings or less,

noncommercial walering of lawns and gardens lolalling one acre or less.)

IRRIGATION, MUNICIPAL, INDUSTRIAL. MISCELLANEOUS $50.00

MONITOR (For water level measurements or chemical quality sampling) or TEST WELL NO FEE

IF WELL WILL SERVE MULTIPLE USES, SUBMIT ONLY ONE (THE HIGHER) FILING FEE.

THIS SECTION IS NOT TO BE FILLED IN BY APPLICANT

THE STATE OF WYOMING ) ) ss.

STATE ENGINEER'S OFFICE ) This instrument was received and filed for record on the 1st dayof September , A.D.

19 99 ,at 9 o'clock a- M. - Permit No. U.W. 118636

THIS IS TO CERTIFY that I have examined the foregoing application and do hereby grant and conditions:

This application is approved subject to the condition that the proposed use shall not interfere with any existing rights to ground water from the same source of supply and is subject to regulation and correlation with surface water rights, if the ground and surface waters are interconnected. The use of water hereunder is subject to the further provisions of Chapter 169, Session Laws of Wyoming, 1957, and any subsequent amendments thereto.

Granting of a permit does not guarantee the right to have the water level or artesian pressure in the well maintained at any specific level. The well should be constructed to a depth adequate to allow for the maximum development and beneficial use of ground water in the source of supply.

I f the well is a flowing artesian well, it shall be so constructed and equipped that the flow may be shut off when not in use without loss of water into sub-surface formations or at the land surface.

T h i s a p p l i c a t i o n is f o r t e s t purposes on l y : n o w a t e r w i l l b e bene-This p e r m i t w i l l b e a u t o m a t i c a l l y c a n c e l l e d o n December 3 1 , 2000 o r upon r e c e i p t o f a n a c c e p t a b l e Sta tement of Comple t ion . PROOF OF APPROPRIATION AND BENEFICIALUSE OF (FORM U.W. 8) I S WAIVED UNDER THIS PERMIT.

Approval of this application may be considered as authorization to proceed with construction of the proposed well or spring. A Statement of Completion will be filed within thirty (30) days of completion of construction, ' ' " , ,

, ' ' " "

Completion of construction for the purposes specified in Item 4 of this application will be made by December

Witness my hand this

The State of Wyoming

Department of Environmental Quality Jim Geringer, Governor

Herschler Building 122 West 25th Street Cheyenne, Wyoming 82002

ADMINIOUTREACH ABANDONED MINES AIR QUALITY INDUSTRIAL SITING LAND QUALITY SOLID & HAZ. WASTE WATER QUALITY (307) 777-7758 (307) 777-61 45 (307) 777-7391 (307) 777-7369 (307) 777-7756 (307) 777-7752 (307) 777-7781 FAX 777-36 1 0 FAX 777-6462 FAX 777-561 6 FAX 777-6937 FAX 777-5864 FAX 777-5973 FAX 777-5973

Authorization to Discharge Wastewater Associated with Pump Testing of Water Wells

Under the National Pollutant Discharge Elimination System

In compliance with the provisions of the Federal Water Pollution Control Act and the Wyoming Environmental Quality Act,

Weston Engineering, Inc.

is authorized to discharge wastewater associated with pump testing of water wells from

the Baggs Water Supply Project, Wells 99-1 and 99-2

to surface waters of the State of Wyoming in accordance with the requirements of the enclosed general permit for temporary discharges.

The wastewater discharged from Outfall 00 1 (Well 99- 1) and Outfall 002 (Well 99-2) shall be limited and monitored by the permittee as specified below.

Effluent Limitation

Pararnet er

Total ~ i s s o ~ v e d Solids, mg/l

Monthly Weekly Daily Average Average Maximum

NI A NIA 5000

Total Suspended Solids, mgA 30 45 90

The pH shall not be less than 6.5 standard units nor greater than 9.0 standard units in any single grab sample.

Monitoring Requirements

Parameter Measurement Frequency

Flow, gpm Daily

pH, S.U. Daily

Total Suspended Solids, mgfl Weekly

Total Dissolved Solids, mg/l Weekly

Sample Type

Inst. or Con.

Grab

Grab

Grab

This facility has been assigned permit number WYG720012.

Coverage under this general permit for temporary discharges shall begin September 20, 1999 and is authorized to continue no longer than one year from the date listed above.

If you have any questions concerning the conditions of this general permit, contact Leah Krafft at (307)777-7093.

Water Quality Division

Appendix D - Lithologic Logs

LITHOLOGIC LOG

BAGGS TEST WELL NO. 99-1

Depth Principal ( feet) Lithology Description Comments

0 - 14 Sand, Gravel, and Variegated pink, white, clear, brown, and Borehole caves 1 1-1 2 feet. Cobbles black, poorly sorted, sub-rounded,

medium grained sand to 1 &inch diameter cobbles.

14-20 Claystone

TD of Well = 20 feet

Grayish green, slightly sandy, weathered claystone.

Note: Colors were determined using the GSA Rock Color Chart.

Baggs Test Well No. 99-1 Magic Log Appendix D - Page 1

LITHOLOGIC LOG

BAGGS TEST WELL NO. 2

Depth Principal ( feet ) Lithology Description Comments

0 - 3 Silt Dark yellow brown to moderate yellowish brown siltstone with pebbles.

3 - 16.5 Sand, Gravel and Variegated pink, white, clear, black, Grain size increases with Cobbles yellow, and red, poorly sorted, sub - depth; Borehole caves to 10

angular to well rounded, medium grained feet. sand to 10 - inch cobbles.

16.5 - 20 Claystone

TD of Well = 20 feet

Grayish green, slightly sandy, weathered claystone.

Note: Colors were determined using the GSA Rock Color Chart.

Bagp Test Well No. 99-2 Liihdugic Log Appendix D - Page 2

Appendix E - Well Histories

November 18

November 19

December 2

December 3

December 4

December 5

December 15

December 16

December 17

SagSs Test Well No. 09- 1

WELL HISTORY BAGGS TEST WELL NO. 99-1

NOVEMBER 18, 1999 TO DECEMBER 17, 1999

Contractor mobilizes on site and drills from 0 to 20 feet.

Demobilize. Move to Test Well No. 2 site.

Plug and abandon Test Well No. 1: Mobilize Texoma 600 auger rig to drill Exploration Well No. 1. Drill 2-foot diameter borehole to 2 1.5 feet; lnstall casing and screen assembly and 8x1 2 silica sand.

Tag top of sand at 4.5 feet. Install surface casing to a depth of 5 feet with 3 inches of stick up pour cement surface seal.

Flush well with fresh, clear water. Begin well development by jetting screen with chlorinated water.

Continue well development using jetting and airlifting techniques.

Contractor installs 1.5 HP submersible test pump in well, with intake set at 20.5 feet. Water level monitoring equipment (10 psi transducer set at 20.75 feet connected to an In-Situ Hermit 3000 datalogger) is set in well. Transducer cable is secured to wellhead to prevent movement. Attempt to conduct step-test but well yields only 5 gpm. Stop test and allow well to recover. Begin constant-rate test at 5 gpm.

Collect water quality sample for domestic potability analysis. End constant-rate test and begin collection of recovery data. End collection of recovery data after 168 minutes.

Remove pumping equipment and weld cap on wellhead.

Well History Appendix E - Page 1

November 19

December 2

December 4

December 6

December 7

December 8

December 9

December 15

December 17

December 18

Baggs Test Well No. 992

WELL HISTORY BAGGS TEST WELL NO. 99-2

NOVEMBER 19, 1999 TO DECEMBER 18, 1999

Contractor mobilizes on site and drills from 0 to 20 feet.

Plug and abandon Test Well No. 2. Mobilize Texoma 600 auger rig to drill from 0-21.5 feet, set liner in well to 21 feet.

Prepare to install casinglscreen assembly, find collapsed material in liner. Need to ream well, wait for auger rig.

Mobilize Texoma 600 auger rig on site. Place screenlcasing assembly in well, sand pack well; remove liner from well.

Install 5 feet of surface casing. Cement in place.

Flush well with fresh, clear water. Begin well development by jetting. Jetted water causes washout around surface casing. Stop development and re-cement surface casing. Allow cement to cure overnight.

Resume well development using jetting and airlifting techniques.

Resume well development using jetting and airlifting techniques. Development results in washout around surface casing. Stop well development. Add cement to surface seal.

Contractor installs 1.5 HP submersible test pump in well, with intake set at 22 feet. Water level monitoring equipment (10 PSI transducer set at 22.25 feet connected to an In-Situ Hermit 3000 datalogger) is set in well. Transducer cable is secured to wellhead to prevent movement. Attempt to conduct step-test, but well only yields 5 gpm. Continue pumping at 5 gpm. Pumping water level drops to pump intake after 28 minutes. Collect water quality sample for limited suite of analyses. Shut off pump and begin collection of recovery data.

End collection of recovery data. Remove pump and monitoring equipment from well and tack weld cap on wellhead.

Well History Appendk E - Page 2

Appendix F - Pump Test Data


Baggs Exploration Well No. 99-1 Step-Test and Recovery

Date: December 15, 1999. Tested by: D.C. Driling, Lusk, Wyoming Supervised by: Weston Engineering, Laramie, Wyoming

Pumping Equipment: 1.5 HP Submersible Test Pump

Monitoring Equipment: HERMIT 3000 Dataloger, 10 PSI Transducer, and Electronic Well Sounder

Discharge: 10 and 7 GPM

Comments: lntial Static Water Level = 7.25 Feet (TOC)

Elapsed Drawdown Elapsed Drawdown Time (min) (feet) Comments Time (min) (feet) Comments

Baggs Exploration Well No. 99- 1

Start Step-Test 0.81 62 Q= 10 GPM 0.8632

Water is Slightly Turbid 0.913 0.9657 1.021 5 1.0807 1 .I433 1.2097 1.28 1.3545 1.4335 1.5172 1.6057 1.6995 1.7988 1 .go42 2.01 57 2.1 338 2.259 2.391 5 2.532 2.6808 2.8383 3.0052 3.1 82 3.3693 3.5677 3.7778 4.0005 4.2363 4.4862 4.7508 5.0312 5.328 5.6425 5.9757 6.3285 6.7023 7.0983 7.5177 7.962 8.4327 8.931 2 9.4592

Step-Test and Recovery Appendix F - Page 1


69.8003 70.8003 71.8003 72.8003 73.8003 74.8003 75.8003 76.8003 77.8003 78.8003 79.8003

Water is Clear 80.8003 pH=7.2; Cond=500 81.8003

82.8003 83.8003 84.8003 85.8003 86.8003 87.8003 88.8003 89.8003 90.8003 91.8003 92.8003 93.8003 94.8003 95.8003 96.8003 97.8003 98.8003 99.8003 100.8003 101.8003 102.8003

Water Level at Intake 0 Turn Flow Down to 0.01 1

7 GPM 0.022 0.033 0.044 0.055 0.066 0.077 0.088 0.099 0.1 1

0.121 pH=7.0; Cond=500 0.132

0.143 0.154 0.165 0.1 76 0.187 0.1 98 0.209 0.22 0.231 0.2427 0.2552 0.2683 0.2823 0.2972 0.3128

9.809 9.858 9.97

10.088 10.205 10.33 10.449 10.57 10.697 10.81 8 10.949 1 1.074 11.201 11.332 1 1.463 11.6

1 1.733 11.88 12.01 8 12.164 12.31 8 12.472 12.628 12.784 12.935 13.09 13.244 13.282 13.259 pH=7.3; Cond=500 13.274 13.254 13.256 13.279 Water Level at Intake 13.257 Stop Step-Test 13.064 Begin Recovery 13.053

Baggs Exploration Well No. 99- 1 Step-Test and Recovery Appendix F - Page 2


Bag@ Eicpom tion Well No. 99- 1 Step-Test and Recovery Appendix F - Page 3


Bagp Exploration Well No. 99- 1

End Recovery

I

Step-Test and Recovery Appendix F - Page 4


Baggs Exploration Well No. 941 Constant-Discharge Test and Recovery

Date: December 15-16,1999. Tested by: D.C. Drilling, Lusk, Wyoming Supervised by: Weston Engineering, Laramie, Wyoming

Pumping Equipment: 1.5 HP Submersible Pump

Monitoring Equipment: HERMIT 3000 Datalogger, 10 PSI Transducer, and Electronic Well Sounder

Discharge: 5 GPM

Comments: lntiai Static Water Level = 7.25' (TOC)

Elapsed Drawdown Elapsed Drawdown Time (min) ( ft) Comments Time (min) (ft) Comments

Start Pump 0.7795 Adjust Rate to 5 GPM 0.8238

Water is Cloudy 0.8708 0.9207 0.9733 1.0292 1 .OM3 1 .I51 1.2173 1.2877 1.3622 1.4412 1.5248 1.6133 1.7072 1.8065 1.9118 2.0233 2.1 41 5 2.2667 2.3992 2.5397 2.6885 2.846 3.01 28 3.1 897 3.377 3.5753 3.7855 4.0082 4.244 4.4938 4.7585 5.0388 5.3357 5.6502 5.9833 6.3362 6.71 7.106 7.5253 7.9697 8.4403 8.9388

1.036 1.051 1.065 1.067 1.081 1.072 1.081 1.094 1.109 1.085 1 .I 14 1 .I27 1.116 1.119 1 .I 17 1.14 1.15 1.156 1 .I72 1.168 1.162 1.16 1 .I42 1.12 1.135 1.101 1.09 1.091 1.101 1.1 1.09 1.111 1 .I 1 1 .I24 1.127 1.13 1 .I22 1.1 1

1.113 1.074 1.075 1.071 Q= 5 GPM, Water is Clear 1.046 1.057

Baggs Explomtion Well No. 90- 1 Constant-Discharge Test and Recovery Appendix F - Page 5

Elapsed Drawdown Elapsed Drawdown Time (min) (ft) Comments Time (min) (ft) Comments

1.467 1.465 1.482 1.493 1.506 pH= 7.0; Cond= 520 1.51 1 1.52 1.534 1.54 1.555 1.56 1.591 1.586 1.596 1.607 1.633 1.638 1.654 1.661 1.69 1.699 Decrease Flow Slightly 1.4 pH= 7.4; Cond= 580

1.393 Adjust Flow Up 1.381 pH= 7.0; Cond= 580 1.514 pH= 7.0; Cond= 580 1.51 1 Turn off pump 1.531 Begin Recovery

Baggs ~ I o r a t i o n Well No. 99- 1 Constant-Dkcharge Test and Recovery Appendix F - Page 6

Elapsed Drawdown Elapsed Drawdown Time (min) (ft ) Comments Time (min) ( ft) Comments

Baggs Btploriition Well No. 99- 1

0.472 0.465 0.462 0.459 0.454 0.452 0.449 0.444 0.441 0.439 0.434 0.428 0.424 0.42 0.41 5 0.413 0.407 0.402 0.397 0.392 0.388 0.394 0.379 0.374 0.369 0.363 0.359 0.359 0.349 0.345 0.34 0.336 0.33 0.323 0.32 0.314 0.31 0.304 0.3

0.31 End Recovery On Hermit 0.042 Manual Reading

Constant-Discharge Test and Recovery Appendix F - Page 7


Baggs Exploration Well No. 99-2 Pump Test and Recovery

Date: December 17-1 8, 1999. Tested by: D.C. Drilling, Lusk, Wyoming. Supervised by: Weston Engineering, Laramie, Wyoming.

Pumping Equipment: 1.5 HP Submersible Test Pump

Monioring Equipment: HERMIT 3000 Datalogger, 10 PSI Transducer, and Electronic Well Sounder

Discharge: 5 GPM

Comments: Initial Static Water Level= 8.25 Feet (TOC)


Barn m r a t l o n Well No. 99-2

Start Test 0.81 62 Adjusting Flow 0.8632

0.91 3 Water is Turbid 0.9657

1.021 5 1.0807 1.1 433 1.2097 1.28

1.3545 1.4335 1.51 72 1.6057 1.6995 1.7988 1 .go42 2.01 57 2.1 338 2.259 2.391 5 2.532 2.6808 2.8383 3.0052 3.1 82

3.3693 3.5677 3.7778 4.0005 4.2363 4.4862 4.7508 5.031 2 5.328 5.6425 5.9757 6.3285 6.7023 7.0983 7.51 77 7.962 8.4327 8.931 2 9.4592

1.793 1.897 1.996 2.1 22 2.232 2.37 2.493 2.628 2.763 2.887 3.031 3.185 3.299 3.41 5 3.566 3.707 3.87 4.039 4.255 4.332 4.375 4.44 4.515 4.577 4.636 4.727 4.789 4.867 4.944 5.031 5.125 5.203 5.31 6 Q=5 GPM 5.426 Water is Clearing 5.541 5.68 5.793 5.91 6.037 6.187 6.343 6.497 pH= 7.4; Cond= 940 6.673 6.851 pH= 7.4; Cond= 940

Pump Test and Recovery Appendix F - Page 8

Elapsed Time (min)

Drawdown ( ft ) Comments

12.128 End Pump Test 12.092 Benin Recovew

Elapsed Time (min)

1.0292 1.0883 1.151 1.21 73 1.2877 1.3622 1.441 2 1.5248 1.61 33 1.7072 1.8065 1.91 18 2.0233 2.1 41 5 2.2667 2.3992 2.5397 2.6885 2.846 3.01 28 3.1 897 3.377 3.5753 3.7855 4.0082 4.244 4.4938 4.7585 5.0388 5.3357 5.6502 5.9833 6.3362 6.71 7.1 06 7.5253 7.9697 8.4403 8.9388 9.4668 10.0262 10.61 87 1 1.2462 11.911 12.61 52 13.361 14.151 1 4.9878 1 5.8743 16.81 33 17.808 18.808 19.808 20.808 21.808 22.808 23.808 24.808 25.808 26.808 27.808 28.808

Drawdown (ft) Comments

1 1 -991 1 1.984 1 1.978 1 1.972 1 1.967 11.96 1 1.954 1 1.945 1 1.936 1 1.929 1 1.91 8 11.91 1 1 1.899 1 1.89 1 1 -876 1 1.866 1 1.854 1 1.84 1 1.826 11.811 1 1.795 1 1.778 11.761 1 1.742 1 1.722 1 1.702 1 1.679 1 1.656 11.63 1 1.604 1 1.577 1 1.547 11.516 1 1.485 1 1.45 11.414 11.37 1 1.326 1 1.285 1 1.242 1 1 .I93 1 1 .I45 11.092 11.04 10.984 10.925 1 0.87 10.8

1 0.732 10.66 1 0.584 10.508 1 0.437 10.368 10.299 10.228 10.161 10.094 10.027 9.961 9.891 9.825

Bag@ Exploration Well No. 99-2 Pump Test and Recovery Appendix F - Page 9

Elapsed Drawdown Time (min) (ft)

Baggs Exploratron Well No. 99-2

Elapsed Comments Time (min)

91.808 92.808 93.808 94.808 95.808 96.808 97.808 98.808 99.808 100.808 101.808 102.808 103.808 104.808 105.808 1 06.808 107.808 108.808 109.808 1 10.808 1 1 1.808 1 12.808 1 13.808 1 14.808 1 15.808 1 1 6.808 1 17.808 1 18.808 1 19.808 120.808 121.808 1 22.808 123.808 124.808 125.808 126.808 127.808 128.808 129.808 1 30.808 131.808 132.808 133.808 134.808 135.808 136.808 137.808 138.808 139.808 140.808 141.808 1 42.808 143.808 144.808 145.808 146.808 147.808 148.808 149.808 150.808 151.808 152.808

Pump Test and Recovery

Drawdown ( ft ) Comments

7.1 7 7.1 35 7.1 02 7.069 7.036 7.003 6.971 6.939 6.906 6.874 6.84 6.804 6.771 6.737 6.704 6.673 . 6.642 6.609 6.579 6.547 6.51 6 6.485 6.456 6.425 6.396 6.366 6.338 6.308 6.278 6.246 6.21 6 6.1 85 6.1 55 6.1 25 6.096 6.066 6.036 6.007 5.977 5.948 5.91 9 5.891 5.864 5.835 5.808 5.781 5.755 5.727 5.701 5.678 5.651 5.625 5.599 5.573 5.547 5.52 5.494 5.469 5.443 5.41 7 5.391 5.367

Appendix F - Page 10

Elapsed Time (min)

Drawdown (it)

5.341 5.31 5 5.289 5.263 5.237 5.21 1 5.1 85 5.1 62 5.1 38 5.1 13 5.092 5.067 5.044 5.022 4.999 4.976 4.956 4.931 4.908 4.884 4.862 4.839 4.81 5 4.795 4.771 4.75 4.727 4.704 4.682 4.66 4.64 4.61 7 4.598 4.571 4.551 4.531 4.509 4.487 4.466 4.443 4.421 4.398 4.375 4.352 4.329 4.304 4.283 4.26 4.237 4.21 5 4.1 92 4.1 69 4.1 47 4.1 26 4.104 4.084 4.065 4.043 4.026 4.006 3.987 3.968


21 5.808 21 6.808 21 7.808 21 8.808 21 9.808 220.808 221.808 222.808 223.808 224.808 225.808 226.808 227.808 228.808 229.808 230.808 231.808 232.808 233.808 234.808

- 235.808 236.808 237.808 238.808 239.808 240.808 241.808 242.808 243.808 244.808 245.808 246.808 247.808 248.808 249.808 250.808 25 1.808 252.808 253.808 254.808 255.808 256.808 257.808 258.808 259.808 260.808 261.808 262.808 263.808 264.808 265.808 266.808 267.808 268.808 269.808 270.808 271.808 272.808 273.808 274.808 275.808 276.808


3.95 3.929 3.91 1 3.893 3.873 3.857 3.84 3.82 3.804 3.787 3.771 3.753 3.736 3.71 9 3.694 3.676 3.658 3.641 3.622 3.605 3.589 3.57 3.553 3.536 3.51 8 3.501 3.484 3.466 3.449 3.432 3.41 6 3.399 3.383 3.367 3.35 3.334 3.31 6 3.305 3.29 3.275 3.259 3.237 3.221 3.205 3.1 9 3.1 75 3.1 59 3.143 3.1 29 3.1 15 3.099 3.086 3.076 3.055 3.041 3.027 3.01 1 2.998 2.985 2.969 2.954 2.94

Baggs Bsploration Well No. 99-2 Pump Test and Recovery Appendix F - Page 1 1


B a ~ 9 s Exploration Well No. 89-2 Pump Test and Recovery Appendix F - Page 12

Elapsed Drawdown Elapsed Time (min) (ft) Comments Time (min)

Baggs Exploration Well No. 99-2 Pump Test and Recovery



Elapsed Time (min)

525.808 526.808 527.808 528.808 529.808 530.808 531.808 532.808 533.808 534.808 535.808 536.808 537.808 538.808 539.808 540.808 541.808 542.808 543.808 544.808 545.808 546.808 547.808 548.808 549.808 550.808 55 1.808 552.808 553.808 554.808 555.808 556.808 557.808 558.808 559.808 560.808 56 1.808 562.808 563.808 564.808 565.808 566.808 567.808 568.808 569.808 570.808 571.808 572.808 573.808 574.808 575.808 576.808 577.808 578.808 579.808 580.808 581.808 582.808 583.808 584.808 585.808 586.808

Drawdown Elapsed ( ft) Comments Time (min)

Baggs Ekploration Well No. 99-2 Pump Test and Recovery

Drawdown ( ft) Comments


Elapsed Drawdown Elapsed Drawdown Time (min) (f t) Comments Time (min) ( ft) Comments

Bag@ Ekplomtton Well No. 99-2 Pump Test and Recovery Appendix F - Page 15

Elapsed Time (min)

773.808 774.808 775.808 776.808 777.808 778.808 779.808 780.808 781.808 782.808 783.808 784.808 785.808 786.808 787.808 788.808 789.808 790.808 791.808 792.808 793.808 794.808 795.808 796.808 797.808 798.808 799.808 800.808 80 1.808 802.808 803.808 804.808 805.808 806.808 807.808 808.808 809.808 81 0.808 81 1.808 81 2.808 81 3.808 81 4.808 81 5.808 81 6.808 81 7.808 81 8.808 81 9.808 820.808 82 1.808 822.808 823.808 824.808 825.808 826.808 827.808 828.808 829.808 830.808 831.808 832.808 833.808 834.808

Drawdown ( ft)

0.142 0.14 0.1 4 0.1 4 0.1 39 0.1 39 0.1 39 0.1 37 0.1 37 0.1 37 0.136 0.1 36 0.136 0.1 35 0.1 36 0.1 35 0.1 32 0.1 32 0.1 32 0.1 32 0.1 3 0.1 3 0.1 3 0.1 3 0.129 0.129 0.129 0.129 0.1 29 0.1 27 0.127 0.1 27 0.1 27 0.126 0.126 0.126 0.1 26 0.126 0.124 0.124 0.124 0.124 0.1 23 0.123 0.1 23 0.123 0.122 0.122 0.1 22 0.1 22 0.12 0.1 22 0.12 0.12 0.12 0.12 0.1 19 0.1 2

0.1 19 0.1 19 0.1 19 0.1 17

Baggs Ekploration Well No. 09-2

Elapsed Drawdown Comments Time (min) ( ft) Comments

Pump Test and Recovery Appendix F - Page 16

Elapsed Time (min)

897.808 898.808 899.808 900.808 901.808 902.808 903.808 904.808 905.808 906.808 907.808 908.808 909.808 91 0.808 91 1.808 91 2.808 91 3.808 91 4.808 91 5.808 91 6.808 91 7.808 91 8.808 91 9.808 920.808 921.808 922.808 923.808 924.808 925.808 926.808 927.808 928.808 929.808 930.808 931.808 932.808 933.808 934.808 935.808 936.808 937.808 938.808 939.808 940.808 941.808 942.808 943.808 944.808 945.808 946.808 947.808 948.808 949.808 950.808 951.808 952.808 953.808 954.808 955.808 956.808 957.808 958.808

Drawdown (ft)

0.1 06 0.1 06 0.1 04 0.1 04 0.1 04 0.1 04 0.1 04 0.1 04 0.1 04 0.1 04 0.1 03 0.1 03 0.1 03 0.1 03 0.1 03 0.103 0.103 0.1 03 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.098 0.098 0.098 0.098 0.098 0.098 0.098 0.098 0.098 0.097 0.097 0.098 0.097 0.098 0.098 0.098 0.097 0.098 0.098 0.097 0.097 0.097 0.097 0.096 0.096 0.097 0.097 0.097 0.096 0.096 0.096 0.094 0.096 0.096 0.096 0.096 0.096


959.808 960.808 961.808 962.808 963.808 964.808 965.808 966.808 967.808 968.808 969.808 970.808 971.808 972.808 973.808 974.808 975.808 976.808 977.808 978.808 979.808 980.808 981.808 982.808 983.808 984.808 985.808 986.808 987.808 988.808 989.808 990.808 991.808 992.808 993.808 994.808 995.808 996.808 997.808 998.808 999.808 1000.808 1001.808 1 002.808 1 003.808 1004.808 1 005.808 1006.808 1007.808 1 008.808 1 009.808 101 0.808 1 01 1.808 101 2.808 101 3.808 101 4.808 101 5.808 1016.808 101 7.808 101 8.808 101 9.808 1020.808

Drawdown (ft ) Comments

0.094 0.094 0.096 0.094 0.096 0.096 0.096 0.096 0.094 0.094 0.094 0.094 0.093 0.093 0.094 0.093 0.094 0.093 0.093 0.093 0.091 0.093 0.091 0.091 0.091 0.091 0.091 0.093 0.093 0.093 0.091 0.093 0.091 0.091 0.091 0.091 0.091 0.091 0.091 0.091 0.091 0.091 . 0.093 0.093 0.093 0.09 0.091 0.09 0.09 0.091 0.091 0.09 0.09 0.09 0.091 0.091 0.09 0.09 0.09 0.091 0.09 0.09

Baggs Ekploratfon Well No. 99-2 Pump Test and Recovery Appendix F - Page 17

Elapsed Drawdown Elapsed Drawdown Ti me (min) (ft) Comments Time (min) (fi) Comments

Baggs E~ploratlon Well No. 99-2 Pump Test and Recovery Appendix F - Page 18

NN~NNN~dAAdddddAdddd4ddddddddddddAddddAddddddddAdddddddddddddd

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00000000000000000000000000000000000000000000000000000000000000

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Baggs Explomtion Well No. 99-2 Pump Test and Recovery Appendix F - Page 20

Appendix G Water Quality Data . i

L

REPORT OF ANAL YSIS

Robert Starkey Weston Engineering P.O. Box 6037 Laramie, W. 82073

Date: December 27,1999 Request # 16639 Lab #: G4998

Sample ID: Baggs Well # 1-99 12-1 6-99 I : I Opm

Parameter Calcium, mglL Iron, mglL Magnesium, mglL Sodium, mglL Potassium, mgll Hardness, grainslgallon Hardness, mg CaCOJ

Conductivity, u mhoslcm @ 25

pH Bicarbonate, mg CaC03/L

Carbonate, mg CaC03/L

Chloride, mglL Nitrate as N, mglL sulfate, mglL Total Dissolved Solids, mglL

Result 64

0.68 16.9 23.7

1.6 13.46

230

330 7.4 130

c 1 .o

10 c 0.1

23 300

Laboratory Manager

WYOMING ANALWEAL LABORATORIES, INC. 1660 Harrison St. (307) 742-7995 FAX: (307) 721 8956 LARAMIE, WYOMING 82070 M E M B E R

K I L

Robert Starkey West on Engineering P.O. Box 6037 Laramie, WY. 82073

MLE: tab

Date: November 27, 1999 Request Number: 16640 Lab Number: G4999 Sample ID: Town of Baggs Well #2-99

12-12-99 9:30am

REPORT OF ANAL YSIS

Calcium, mg/L

Magnesium, mg/L

Sodium, mg/L

Hardness, gpg

Hardness, mg/L

Nitrate, mg/L

Sulfate, mg/L

Total Dissolves Solids, mg/L

Monte L. Ellis Laboratory Manager

WYOMING ANALYTICAL LABORATORIES, INC. 1660 Harrison St. (307) 742-7995 FAX: (307) 721-8956 LARAMIE, WYOMING 82070 M E M B E R

K I L

WYOMING DEPARTMENT OF AGRICULTURE ANALYTICAL SERVICES .

Endaed am the results d your water malysis. While this is ncn a complete analyh, the test pnmeten p d d t suffikknt buic inf0nVm0 tion about the water quality. b c t e r i o t ~ l l y your waler is classified as either satisfmoryor unutisfact~ry bucd on the analysir d total colifonn. Chemically )our wrtcr h u bccn clarrtficd as suitable or unsuitable for bum89 surn~rioq, Wstock "t tpnd a d py) j*eaIion. based on the rcsula of the total d i vokd -lids sulfates* nitnlc and s?cifir, conductance dearminationr R ~ t n t l y seven1 other anrlytes have bccn added to our standard potable wter analysis wrics. These am pH. urbonrtc, bicarbonate, chloride. cium and magnesium. Olton and anion rcsulu arc reported in ~illienms/Liter, which is qu inkn t to prru per million.

I t b impaunt to remember that this analysis docs a determine all pooibk mo~nhuu, rh*L ewld e m the n t a qwlity for p u m Stated above, Funhemre, one needs to understand that as t k m i n d content kmsu, the quality dctrurcr and the

-& assumed by the owner or user, increases for its intended pu-

Ianation o f test rew for h m n c o m t i o n J)rcteriolgy - Total Cdifom-

SltWactoay - 0 per 100 ml MF, 0/10 per 100 ml MTF or N (mptk) per 100 ml PA

unutirlwt* 1. A W t h m toul cdilonn result d greater than 0 per 100 ml MF, peter thon 0/10 per 100 ml MTF or P w t h ) per 100

ml PA. % An Jnmlid S Im~ le caused by one d the following results

a TNTC - Too numerous to Count b. CO Confluent G m h c. HOG - Heavy M e r i a Gmwth

TNTC CG or HBG indicate excdvc bacterial powth, that may mask the presence d d i l onn bacteria. & c c s h brclcrirl growth m y be due to r contamina~cd water supply or the sample tested may hnn bccn contaminated. Resampling is rrcommcndcd either bcfom or afrer sanitization d the well and distribution system. Meanwhile the wter should be boiled prior to consumption. When submitting 8 RESAMPLE, ~ ! C ~ S C label the sam~lc as a RESAMPLE and SUDDIV the lab with the D ~ O W result and Lab No,

h'm A p i t b e fecal colifm indicates direct scmv conuminrlion.

Total ditrohd solids bv s u ~ a t i o g

Suitabk -1300 milli yms/Liter or less- the EPA has recommended that domestic public water supplies should not conuin more th8n 300 nrilligrms/litcr. Refer to the section on tdennccs.

Udtabk- p t c r than 1300 millipms/Iltcr

Suitabk 7% milligmms/titcr or less- 5he EPA recommends W millipams/Litcr or ltp for public water supplies. Rckr to the section on tolennccr. '

Unsuitable owr 7% millignms/titer 11 ihould be noted that high levels d sulfale appur to hrvc no physiologicrl action other than 8

b t i v c effect towards new usen. Much of the p n d wrtcr in Wyoming is hi@ in sulfatcs and h u been used lot p n w~rh no advrnc cflccu.

-3- Suitabk - 10 miIliprms/ljtcr or less -The maximum knl allowed in public mter supplies by the EPA is 10 milligmrns/titer. This nan-

dad ir b a d on the effects of nilnte on infants whow formula is made from the water. Adults can pnenlly tolcnte much higher levels. Reler to I he sectton on lolcnncer.

Unsuitable - Over LO milliqrms/litcr

- -urn md ~~m cspmd as Calcium CIlbonrte

‘rime 8 ~ w a do not www cKect the quality of drinking water clbvencly, however, hi@ kvcb of hrrdncrr may b e detrimental enam om plumbing mrtcrirk, fiiutcs and appliances such u hot water t m k

0 - 19 milligr8m/Liter - Soft SO - 119 millipms/Liter - Medium hard UO - U9 mil l ipm/utet - Hud 2M - 299 mill ipnu/utet - Very hrd

mi)liqrms/t)ter and o w - &trrmdy barb

Tnnncnt r)lterc for M m i n g n t e r an commercialIy milabk, but it shaild be noted that this p m kplarrr oMum and -0 nuium with an cquhmlenl amounl of Wium. In our report, hardness is rcponcd in both rniliigr8ms~tcr and p8ins/pllon.

TAa EPA rccom~ncndr r muimum sodium IWCI ot 20 miUigrams/trtcr fw p q ~ ~ & IOU sodium d k u or who high bkod p ~ m or hmn trouble. I t has k e n reported that good quality drinkingwrtcr may contain up to 1U milliqrmr/IAttr d i u m

The following data is provided for your infonna~ion. This data is a rrcommcndniorr, rrquimncnt or kpl ctrndrtd for n t e r wed for human coruumption. This information u prcrenled 80 you hm r basis d twnpriron. It Ihe m u l u d your n t c t 8~lYSb 8m higher than the values luicd hemin, it does not imply the wrtcr is unruitabk for h u m coruumpth It rhould be nmcmkrrd, t b conccntntion d t b corutitwnu irrcrrur the quality of t k n t e r Wmsu.

9000 OWMUNO WATE!R FOR HUMAN CdNSUMPnON The water should contain ku than the to lMng conccntntion or be within the nn*

Calcium and Magnesium expressed 8s CIkium Cwbonrtc (Hrrdncu)

Sodium m m J t 20 ml/L

TDS (Summation) 500 m f i PH 65 - 83 Unit,

lamion o t test for .- . livestpck .--.-. ~y

I t is genenlly agreed Ihal livestock can tolente a higher cowentntion d m i ~ n l s in their drinking water than humans C8n. 11 h u 8 b

been demonstntcd that ccnain species of livestock C8n lolentc up to l2.000 milligrams/litcr Total Dirro)Hd Solidr; hMWt , ahu u no4 a good situation and i t takes r long time lo inmue an animal's tolcnncr to water of high salinity. Sudden changes from p d quality l h * stock rntet to poor, hi@ salinity l b o c k rnicr may p m f ru l to tho rninulr Good quality liv#tocl water should m t r c tbe fobwing critezh

Tar1 diuo)nd solids - Hardness Sultatcs - N i ~ n t a u N Sodium -

Pbr the pu- dclrrtihtiocr O W tk following ponmcterr am wod

Suitable - 3000 millignmr/tJtcr or less Unsuitabk- onr 3000 millifnms/Ucr

Suitable - 1000 millipms/tiler or kr, Unsuitable - onr 1000 mi l l i~ms l t j te r

For put infonnrth, it Ru been turn that the nuximum amount of d i u m livestock a n tokntr b 2000 milligramr/IAter.

Snecific Conductanq micro mhos per cm.

Suitable - SAR 1- :5ra !O Uwiubk - SAR p u r thra 10

*If thb water ir to be used lot bwn and prdea irription, m would rwommcnd conrpk~ i n i p t ko uwlysk, wbich q u i m om (1) q u r n d ~ t ~ a n d ~ $ 4 0 . 0 0 .

POT the prpoce of clurifying mtcr for h u m consumption, we will allow ONE d the thrw rnalytts (tor4 diuolvcd rdibr, sulfala, ot nitnta) 80 cffecd the rbow stated limit, -ding to tbe followine

(1) U. S Envifonnnntal Pmect&a A p c y splatioru relating to the c drink in^ Water ( t ) ~ ~ ~ P u b l i o c i a , A 3 . W i f o m i 8 s U t r W 1 t ~ ~ ~ 6 n t m l h 4 7 / n

k \ P W S r D E X P ~