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Mailing Address: Water Resources Data System

University of Wyoming, Dept 3943 1000 E University Avenue

Laramie, WY 82071

Physical Address: Wyoming Hall, Room 249 University of Wyoming

Laramie, WY 82071

Phone: (307) 766-6651 Fax: (307) 766-3785

Funding for WRDS and the creation of this electronic document was provided by the Wyoming Water Development Commission

(http://wwdc.state.wy.us)

Jill James M. Montgomery

Consulting Engineers Inc.

State of Wyoming Water Development Commission and Town of Superior, Wyoming

Superior Well No. 19 Aquifer Testing

Superior Water Supply Project

July 1992

WYOMING WATER DEVELOPMENT COMMISSION

AND

TOWN OF SUPERIOR, WYOMING

SUPERIOR WATER SUPPLY PROJECT

SUPERIOR WELL NO. 19 AQUIFER TESTING

Prepared by:

James M. Montqomery, Consultinq Enqineers, Inc. 170 North 5th street

Laramie, wyominq 82070

TABLE OF CONTENTS

INTRODUCTION

History Purpose and Scope

DRILLING

PUMP TESTING

Step-Drawdown Testing Constant-Discharge Test

WATER QUALITY

LONG-TERM PROJECTIONS

RECOMMENDATIONS

APPENDIX A - REFERENCES CITED

APPENDIX B - WELL HISTORIES

APPENDIX C - BOREHOLE PENETRATION RATES

APPENDIX D - BIT RECORDS

APPENDIX E - LITHOLOGIC DESCRIPTIONS

APPENDIX F - WATER QUALITY DATA

APPENDIX G - AQUIFER TEST DATA

Geophysical Logs in pocket attached to back cover

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PAGE

1

1 3

3

5

5 8

8

13

16

A-l

B-1

C-1

D-1

E-1

F-1

G-1

Table No.

1 2

3 4

Figure No.

1 2 3 4 5 6 7

8

9

10

Table of contents

LIST OF TABLES

Page Title No.

Summary of Step Test Data Superior Well No. 19 7 Constant Discharge Drawdown Temperature, pH and Water Conductivity 11 Water Quality Data Superior Well Nos. 17, 18 and 19 12 Superior Well No. 19 Safe yield Analysis Drawdown and Radius-of-Influence Projections 13

LIST OF FIGURES

Title

Location Map Superior Well No. 19 As-Built Diagram Step-Drawdown Test Specific Capacity Constant-Discharge Drawdown Test Constant-Discharge Recovery Test Constant-Discharge Drawdown Temperature, pH, and Water Conductivity Radius-of-Influence 8-Month Pumping Period Radius-of-Influence 14-Hour Pumping Period Proposed Well No. 19 Connection

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Page No.

2 4 6 7 9

10

11

15

17 18

INTRODUCTION

History

DRILLING AND TESTING of

SUPERIOR WELL NO. 19

In response to the u.s. EPA's drinking water standards set forth in the 1970's, the Town of Superior measured for heavy metals and radionuclides in their drinking water in 1981. They found the water to contain exceedingly high amounts of radionuclides in the Town's two existing wells (Well No. s 14 and 15). A brief exploration program was conducted in 1982 to determine if groundwater could be developed in either in Town from the Rock Springs Formation or near the booster station in the outcrop of the Ericson Formation. The water quality in the Rock Springs Formation was found to be exceedingly hard and contained excessive amounts of sulfates. The yield of the Ericson Formation was found to be poor in the vicinity of the booster station.

In 1982, a groundwater study was conducted in the Superior area. The recommendation of this study was to drill downdip of the existing wells. In 1983, a replacement well was drilled near wells 14 and 15 because of the poor condition of those wells. An exploration well was also drilled approximately 2 1/2 miles east of the existing wells (Figure 1), and this was found to contain acceptable levels of radionuclides even though the water from the well is high in iron, manganese, and H2S. These constituents were also high in Wells 14, 15, and 16. During the course of air drilling well 17, good production characteristics were noted in the overlying Almond Formation. A sample of water from Almond Formation was analyzed for major anions and cations, and found to fairly good in water quality.

In 1985, a second Ericson Formation well was drilled in the vicinity of Well 17. During the course of drilling this well, the Almond Formation flowed after recovering from the air drilling. A sample of water from the Almond Formation was collected from this well and analyzed for major anions and cations as well as iron. This confirmed the earlier analyses and showed the water to contain moderate levels of iron. From the data collected during the drilling of Well 18, it was estimated that a well completed in the Almond Formation would probably have the long-term capability of producing about 60 gallons per minute (gpm).

In 1991, the Town of Superior applied to the Wyoming Water Development Commission (WWDC) for a groundwater grant to complete an exploratory well in the Almond Formation. A groundwater grant

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.... James M. Montgomery Consulting Engineers Inc.

WELL NO. 19

_--..A ".- -,..

FIGURE 1

was received in late fall 1991 from the WWDC for the engineering, drilling and testing of an exploratory well in the Almond Formation. The grant covered 75 percent of the cost associated with the exploration program with the balance to be paid by the Town. Plans and specifications were prepared in January 1992, bids were taken in March 1992, and drilling, construction, and development of the well was conducted in April and May of 1992. This report presents the data collected during the exploration program.

Purpose and Scope

The purpose of this project was to drill an exploration well in the Almond Formation which could be developed and pump tested to ascertain the production capabilities and water quality contained in the Almond Formation. The Town is typically using only about 60 gpm during the winter months from the Ericson Formation. Due to the high iron and manganese content of the water , it must be treated in Town prior to distribution and usage. If adequate supplies of Almond Formation water could be developed with lower concentrations of iron and manganese, water could be pumped from the Almond Formation and supply the needs of the Town during the winter months thus avoiding the costs for treatment. During the warm summer months, the Almond Formation does not have sufficient yield characteristics to meet the high demand. Therefore, reliance on the Almond Formation would only be during the cold, low water demand months.

DRILLING

As indicated above, bids were taken for the drilling, construction, development and testing of Well No. 19, March 25, 1992. The project was awarded to Watson Well Service of Laramie, Wyoming. Field work commenced on the project April 13, when the driller mobilized to the site, excavated mud pits, mixed mud and commenced drilling. Surface casing was not used in the well design to save as much money on the project as possible. Instead an 8 3/4-inch hole was drilled to 401 feet and 7-inch 0.0. casing was installed and cemented to the surface. (See Figure 2.)

After drilling for, placing the casing, and cementing it to the surface, a 6 1/4-inch diameter hole was drilled to the total depth of 968 feet. This drilling was conducted with fresh water, and no problems were encountered with loss of circulation. The well was geophysically logged on April 20th, and 4-inch blank steel casing and 4~inch, pipe-size, stainless steel screen was set on April 21. The well was developed on April 23, and the rig was demobilized. A complete well history is contained in Appendix B of this report. Borehole penetration rates, bit records, and lithologic descriptions of the cuttings are contained in Appendices C, 0, and E respectively.

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WELL NAME: Superior Well No. 19 WELL OWNER: Town of Superior

ELEVATION IN FEET: 6700

LOCATION.NEl/4.,NEl/4., Sec. :36,

DEPTH GRAPHIC LOG & FORMATION

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STATB ENGINEER PERMIT NO.:uw 87220

IN"l'ERVALS

Bottom

468 530 549 605 659 720 755 820

850 908

e 101W TOTAL DEPTH IN FEET: 968

CONSTRUCTION DETAILS

I'~--------------------~--~'OOIIE- 8-3/4-inch dia. borehole ~ • • . , •. t.f-- 7-inch o. D., 17 lb/ft, ., •. welded steel casing .. ., .. • • ., . . ...~ 'tYpe G cement .. ~ . flo. ~ . ~. ~~

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set @ 368 ft

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steel casing with "~,. welded couplings

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EXPLANATION

[\">::":) Sandstone ~::-:~:·::.:i Mudstone D Clay _ Coal f:·:;·:·:.j Shale

JIM James M. Montgomery Consulting Engineers Inc.

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SUPERIOR WELL NO.19 AS-BUILT FIGURE 2

PUMP TESTING

After completion of the drilling, construction and development of the well, it was pump tested. A Goulds 20-horsepower submersible test pump was installed to approximately 357 feet below ground level (bgl) with two air lines (set at 337 feet bgl) and a 250 pound per square inch (psi) capacity transducer (set at 356 feet bgl) strapped to the pump column for monitoring changes in water levels. The well was initial step tested to determine the pumping rate for the long-term, constant rate pumping test, and to determine the production characteristics of the well. After completion of the step test and allowing the well to recover, a 7-day constant discharge pumping test was conducted. When allowed to recover, the well flowed out the top of the casing. All of the testing was started with the well flowing about 10 gpm. At the conclusion of the testing, a well seal was installed on the well, and the shut-in pressure was measured at 12.5 psi with a 30 psi gage after about 45 days of recovery.

Due to the close proximity of the well to Well No.s 17 and 18, power was obtained for conducting the test from the well house situated next to Well No. 17. Personnel from the Town of Superior assisted in the collection of data during the 7-day, constant discharge pumping test.

step-Drawdown Testing

Step-testing of Superior Well No. 19 was completed on April 29, 1992. Successively stepped-up pumping rates were controlled through the use of a gate valve and flow rates monitored with an in-line totalizing flow meter attached to the wellhead surface discharge piping. Pumping rates were held constant for at least 34 minutes. Casing storage effects were overcome during the second step (See Constant-Discharge Test section below), however, the drawdown results of step one are impacted by these effects. Stepped-up rates of discharge include 15, 30, 60, and 120 gpm (see data in Appendix G). The drawdown associated with each step is shown in Figure 3.

Table 1 lists the results of the step-test of Superior Well No. 19 and a log-log plot of drawdown versus discharge for the various stepped rates is shown on Figure 4. Superior Well No. 19 may approach 100% efficiency, as indicated by the minor deviation from linearity in Figure 4, and therefore, the drawdown measured in the well appears to be an accurate reflection of formation drawdown. The spurious specific capacity value calculated from the first step is a result of casing storage effects on the observed drawdown. Assuming an ideal confined aquifer and a 100% efficient well at the various stepped-rates, estimation of the aquifer transmissivity in the vicinity of Well No. 19 is 888 gpd/ft. Because of the short duration of this test, this value represents near well conditions. In summary, the step test showed the well efficiency to be very high.

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0.001 0.01 0.1

SUPERIOR WELL NO. 19 Step-Drawdown Test

April 29, 1992

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FIGURE 3

TABLE 1 SUMMARY OF STEP TEST DATA

SUPERIOR WELL NO. 1sa

DISCHARGE DRAWDOWN· (gpm) (tt)

15 10.67

30 50.39

60 83.93

120 198.23

• Measurement at 34 minute. within each stepped rate of discharge

1000

100

SUPERIOR WELL '19 Specific capacity

Aprtl 29, 1992

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SPECIFIC CAPACITY (gpmlft)

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Drawdown (It)

FIGURE 4

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constant-Discharge Test

A constant-discharge drawdown test was performed on Superior Well No. 19 from April 29, 1992 to May 6, 1992 (10,000 minutes, approximately 7 days). The same pumping and monitoring equipment arrangement describe above in the step-test discussion was utilized for the constant-discharge test. The discharge rate was held constant at 80 gpm for the entire length of the test. Figure 5 illustrates the constant discharge test of Well No. 19 using the semi-logarithmic method developed by Cooper and Jacob (1946). Important observations from this graph include (1) the effects of casing storage (tc) last 67 minutes, and (2) a straight line match to the later time data yields an aquifer transmissivity of 470 gpd/ft.

Analysis of the recovery data depicted on Figure 6 yields a value for aquifer transmissivity comparable to that calculated using the drawdown data (515 gpd/ft). However, examination of this graph reveals that zero residual drawdown occurred at a t/t' value between six and seven, rather than at tit' equal to one or the origin of the diagram as conventional well hydraulic theory dictates. (The symbol lit" represents the time since pumping began whereas "t'" represents the time since the pump was turned off.) Driscoll (1986) indicates that displacement of the residual drawdown curve such as that shown on Figure 5 may suggest a recharge effect (leakance).

WATER QUALITY

Water pumped during the constant-discharge drawdown test was sampled periodically and analyzed for pH, temperature, and conductivity. Table 2 is a tabulation of, and Figure 7 graphically displays these data. The significant trend in these data is a decrease in the conductivity with pumping time. An initial analysis of the conductivity prior to the start of the stepdrawdown aquifer test measured 800 ~mho/cm, with additional readings taken at 71 minutes and 100 minutes of 790 ~mho/cm and 810 ~mho/cm, respectively. Table 2 in conjunction with the previous discussion, shows that the conductivity of the Almond Formation water pumped from Well No. 19 decreased over time. from approximately 800 ,umho/cm to 680 ,umho/cm. This could be indicative of leakance, which was also apparent from the residual drawdown curve discussed previously.

Comparison of the laboratory analyses of mid-aquifer test and final (sample drawn at end of constant-discharge drawdown test) samples from Well No. 19 with U.S. Environmental Protection Agency (EPA) primary and secondary standards on Table 3 indicates that the well water meets all primary and secondary EPA drinking water standards except for iron which it exceeds by .04 milligrams per liter (mg/l) (13%) . Iron is a secondary standard which is set for aesthetic purposes. Table 3 also lists the results of the laboratory analyses of samples drawn from Superior Well Nos. 17 and 18 upon completion of their initial constant-discharge drawdown tests. The

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SUPERIOR WELL NO. 19 Constant-Discharge Drawdown Test

Jacob Analysis April 29 - May 6, 1992

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May 6 - May 7, 1992

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TABLE 2 SUPERIOR WELL NO. 19

CONSTANT DISCHARGE DRAWDOWN Temperawre, pH, and Water Conductivity

Pumping l1me (min.)

4 30 60

120 300 540 SJ75 1300 1910 2815 3030 3goo

5380 5440 6820 8080 8S3O 8660 10000

Temperature (Celsius)

15.5 16 16 16 16 16 15 16 16 16 15 15 15 15 15 15 15 16 16

pH 7.55 7.4 7.4 7.4 7.5 7.4 7.6 7.2 7.4 7.5 7.5 7.6 7.5 7.6 7.6 7.6 7.4 7.7 7.7

Wa .... Conductivity

(x100) 7.2 7.5 7.4

7.39 7.4 7.4

7.22 7.2 7.4 7.9 7.4 7.5 7.4 7.2 7.3 7

6.4 6.8 6.8

SUPERIOR WELL NO. 19 Constant Discharge Drawdown

Temperature, pH, and Water Conductivity

--0-- Temperature --ilet--- pH (units) -~.~- Wa .... Conductivity

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Pumping Time (min.) FIGURE 7

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TABLE 3

WATER QUALITY DATA

SUPERIOR WELL NOS. 17, 18 AND 19

EPA \.Ell NO. 19 '-'Ell NO. 19 !.'Ell NO. 18 '-'Ell NO. 17 MAXI .... MID-TEST FINAL SAMPLE SAMPLE

PARAMETERS (mg/l CONTAMINANT SAMPlS SAMPLE 4/11/SSd 3!31!84d except as noted) lEVELa 5/2192 ,c 5/6/92

Primatl EPA Parameters

Regulated vac's Various NA NO NA NA Trihalomethanes Various NA NO NA NA Pesticides/Herbicides Various NA NO NA NA Arsenic 0.5 NA <0.001 NO NO Bariun 1.0 NA <0.10 0.13 NO Cadmium 0.01 NA <0.01 NO NO Chromium 0.05 NA <0.02 NO NO Fluoride 1.4 NA 0.50 NA 0.26 Lead 0.05 NA <0.05 NO NO Mercury 0.002 NA <0.0002 NO NO Nitrate (as N) 10.0 NA <0.10 NO NO Selenil.l1l 0.01 NA <0.001 NO NO Si lver 0.05 NA <0.01 NO NO Uranium NS NA 0.001 NO NO

Radil.l1l 226, pCilt 3.0 NA 0.7 1.2 + O.S 2.0 % 0.9 Radil.l1l 228, pCi/t 5.0 NA 2.4 3.3 :; 2.5 1.0 Gross alpha, pCi/t 15.0 NA <1.0 0.5 :; 2.0 5.8 t 3.2 Gross beta, pCi/t 50.0 NA 20.0 ! 2.6 14.0 ! 2.4 18.0 % 2.0

Secondatl EPA Parameters

Temperature °c NS 15 16 NA 19 Fecal Col Harm NS NA <1.1 <2.2 NA pH (uni ts) 6.5-8.5 7.63 7.72 8.5 7.9 Total Dissolved Solids 500 386 459 274 308 Conductivity (mmhos\cm) NS 735 (i) 250 C 697 (i) 25 0 C 455 (i) 770 F 511 Ql 770 F Acidity NS - 185 -112 NA NA Alkalinity-CaC03 NS 281 278 185 230 Hardness,CaC03 NS NA 288 235 252 Calcil.l1l NS NA 69.2 58 58 Magnesium NS NA 28.0 22 26 Potassium NS NA 25.2 14 15 Sodium 250 53.6 52.0 17 11 Bicarbonate NS 343 339 201 280 Carbonate NS 0 0 12 0 Chloride 250 6.1 5.5 11 4 Sul fate 250 117 126 58 57 Boron NS NA <0.10 NO NA Copper 1.0 NA <0.01 NO NA Iron 0.3 NA 0.34 1 • 1 0.53 Manganese 0.05 NA 0.03 0.27 0.28 S; l ica NS NA 14.7 4.5 NA Zinc 5.0 NA 0.02 0.07 NA

~S = No Standard. ~A = Not Analyzed; NO = Not Detected. ~Laboratory Data Sheets in Appendix F.

(Anderson & Kelly, 1985 and 1984)

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Almond Formation water in Well No. 19 is more mineralized than that of the Ericson Formation water produced from Well Nos. 17 and 18, however, the iron level found in No. 19 is 64% and 31% of the concentrations found in Well Nos. 17 and 18, respectively; and the manganese level in Well No. 19 is only about 10% of the concentrations found in both Well Nos. 17 and 18.

Bacteriological analyses performed on Well No. 19 water was negative for coliform organisms, fecal streptococcus organisms and iron bacteria. All of the results of the laboratory analyses are contained in Appendix F of this report.

LONG-TERM PROJECTIONS

Three scenarios were developed to analyze the discharge/drawdown relationship of Superior Well No. 19 over the 40 year design period. This is often referred to as a safe yield analysis. Safe yield is a groundwater resource evaluation concept originally employed to designate the withdrawal rate from an aquifer without depleting the supply. Because depletion through pumping of an aquifer such as the Almond formation is improbable, the safe yield analysis, with relation to Superior Well No. 19, will be defined as a yield that will not decrease the pumping water level to the depth of pump setting. Figure 2 shows the "As-Built" diagram of Superior Well No. 19. The liner-hanger assembly was set at 368 feet bgl, which limits the depth that the pump intake can be set to approximately 360 feet bgl. Superior Well No. 19 is a flowing well (artesian conditions), therefore, the available drawdown is 360 feet.

The first scenario in performing this safe yield analysis involved estimating the hydraulic response of the aquifer using the method of Theis (1935) and incorporating the value of transmissivity (490 gpd/ft) as dictated by the results of the aquifer tests discussed previously. A storage coefficient of 3.3 X 10-4 was utilized in this safe yield analysis. This value was back-calculated using the method of Theis (1935) and the known discharge rate and measured drawdown values of the constant-discharge drawdown test. Table 4 summarizes the drawdown effect and radius-of-influence (extent of the cone-of-depression caused by the pumping well to a point. where the drawdown is 0.1 feet) at various time steps assuming the well

TABLE 4 SUPERIOR WELL NO. 19 Safe yield Analysis

Drawdown and Radius-of-Inf1uence Projections

Available Theoretical Theoretical Time Drawdown Drawdown Radius-of-Influence years (feet) (feet) (miles)

1 360 303 6 5 360 326 13.5

10 360 335 19 20 360 345 26.9 40 360 355 38

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will develop groundwater continuously for 40 years using the aquifer parameters described above. The production rate used was 60 gpm. Obviously, continuous pumping from the well is a worst case scenario. However, this analysis suggests that the aquifer system developed by Superior Well No. 19 can theoretically meet the demands of the anticipated aquifer development. The radius-ofinfluence measured is, as mentioned, a theoretical value, only valid for a homogenous aquifer that extends infinitely in all directions away from the well. This is quite obviously not the case; the Almond formation outcrops less than one mile from Well No. 19 (Anderson & Kelly, 1983), therefore, the radial extent of the cone-of-depression would be much greater in an eastern direction. The non-homogeneity of the Almond Formation (sand, shales and coals interfingering) further complicates the calculation of the radius-of-influence. The discontinuous sands of the Almond Formation will cause the cone-of-depression to snake throughout the aquifer (far reaching in areas of low transmissivities and short reaching in those areas with a higher transmissivity value).

Because the potential for negative impact to the Almond Aquifer from the mining activity in this area is so great, a less general safe yield analysis was performed using a continuous pumping time of eight months (projected winter month pumping time for Well No. 19) . The theoretical result of pumping Well No. 19 for eight months would be a drawdown in the well of 297 feet and the radial distance from the well where a drawdown of 0.1 feet is encountered would be 4.9 miles.

Figure 8 shows the area of this theoretical radius-of-influence with the respect to the mining activity and coal tracts in the area. The areas of concern encompassed within this cone-ofdepression include the Leuci te Hills Coal Tract, Deadman Coal Tract, Point of Rocks Coal Tract and the active mining operations -Bridger Coal Mine and Prospect Point Coal Mine. The Point of Rocks Coal Tract and mining operations would directly impact Well No. 19, as the mined coal or targeted coal would be in the Almond Formation. The other tracts or mining operations mentioned involve coal seams located in the Ft. Union and Lance Formations which are younger rocks than the Almond Formation.

The impacts involved with the mining operations would be to (1) contaminate the aquifer from mining operations and (2) to limit the aquifer storage capacity by the removal of aquifer material and creating a discontinuity of water bearing sands. Potential, although minimal, would exist to also impact the Almond Aquifer by infiltration of contaminants due to mining operations occurring in the shallower rock units.

The third safe yield analysis was based on an average demand by the Town of Superior. The quantity of water needed to meet the average demand was calculated (50,000 gallons per day) using a population of 400 and an average demand value of 125 gallons per day per capita (gpdc). Well No. 19 would need to pump for 14 hours at 60

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JIM James M. Montgomery Consuhlng Engineers Inc.

R102W R100W

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N

RADIUS-OF-INFLUENCE a-MONTH PUMPING PERIOD

FIGURE a

gpm to meet this demand volume. If Superior Well No. 19 was only utilized for 14 hours each day during the winter months, the well would have a maximum drawdown of approximately 220 feet. The radius-of-influence associated with this pumping time is reduced significantly to 1270 feet (Figure 9). This radius would only encompass the Leucite Hills Coal Tract, in which the targeted coal is from the Ft. Union and Lance Formations. According to the 1992 Municpal Roster of the Wyoming Association of Municipalities, the population is 225 which should make the above projections conservative.

RECOMMENDATIONS

Based on the results of the third safe yield analysis, the impact to the quality of water produced by Superior Well No. 19 by nearby mining operations should not preclude the incorporation of this well into the Town of Superior I s water supply system. The recommended production rate is 60 gpm with the pump intake set at 360 feet bgl. This arrangement will require a 20 horsepower motor to produce the design yield of 60 gpm with the total dynamic head (TDH) requirement of 690 feet (pump intake elevation at the booster station). Several pump manufacturers produce a product capable of meeting these design requirements. A pitless adaptor designed for flowing wells will have to be installed on Well No. 19 to facilitate connecting the well into the existing system. This is required to prevent the water from freezing during the winter due to the artesian conditions currently existing at Well No. 19. A conceptual diagram of the proposed connection of Well No. 19 to the Superior water supply system is shown in Figure 10. Approximate costs associated with the design, construction and electrical hookup (telemetry control rewiring) are:

Pump, Motor, Controls, Piping, and Misc Electrical Telemetry

Subtotal

Engineering, Assistance with Bidding, Field Inspection

Contingencies

Total

$17,000 $ 4,000 S 7,500

$28,000

$ 7,000 S 3,000

$38,000

The engineering costs do not include engineering associated with the electrical or telemetry. It is recommended that these items be contracted for directly by the Town since several modifications have been made to the existing system particularly with the telemetry. To determine what has been done and design additions to the telemetry system may exceed the cost associated with making the necessary modifications. Therefore, these engineering costs could easily be eliminated by contracting directly with the firm currently servicing the telemetry system. Likewise, it may be more

-16-

I ....., -....J I

JIM James M. Montgomery Consulting Engineers Inc.

T ~--~--~~~~~~--~---.--~--~--~--~--~--~--~--~--; 22

N

T

::t~~~~~I~~~~ ~

RADIUS-OF-INFLUENCE 14-HOUR PUMPING PERIOD

FIGURE 9

I I-' ex> I

( /

/

... James M. Montgomery Consuhlng Engineers Inc.

SCALE: 1- • 60'

WELL 19 ;dATE VALVE PITLESS ADAPTER~CHECK VALVE

WI MANHOLE

_ ~roperty B~~I

3- PVC CONNECTION EXIST. CONTROl BUILDING -E---

\WEll18 ~EX~T~.:~PE--------~WEll17 II II It

-----~~~---COUNlY ROAD 4-18 I

-----+------- I

§-- - --- - ~EXIST~G TRANSMISSION LINE

I I

I

SUPERIOR WELL NO. 19 PROPOSED CONNECTION

FIGURE 10

cost effective to directly hire an electrician to run conduit from the well to the well house rather than have this item engineered.

Plans and specifications will be provided for the pump, drop pipe, wiring to the pump, check valves, pitless adaptor, etc. Since the estimated costs will require competitive bidding, and plans and specifications will require the approval of DEQ, this portion of the project should be competitively bid.

-19-

APPENDIX A

REFERENCES CITED

REFERENCES

Anderson & Kelly, Inc., 1983, Hydrogeologic evaluation of potential aquifers near South Superior, Wyoming, 33 pp.

Anderson & Kelly, Inc., 1984, Report of drilling and testing town of South Superior Wells Nos. 16 and 17 Sweetwater County, Wyoming, 16 pp.

Anderson & Kelly, A Division of James M. Montgomery, Consulting Engineers, Inc., 1985, Report of drilling and testing Well No. 18, 13 pp.

Cooper, H. H., Jr., and C. E. Jacobs, 1946, A generalized graphical method for evaluating formation constants and summarizing wellfield history: Transactions, American Geophysical Union, vol. 27, pp. 526-534.

Driscoll, F. G., 1986, Groundwater and wells: Second Edition, Johnson Division, st. Paul, Minnesota, 1,089 pp.

Schafer, D. C., 1978, Casing storage can affect pumping test data: The Johnson Drillers Journal, January-February, pp. 1-5.

Theis, C. V., 1935, The relation between lowering of the piezometric surface and the rate and duration of discharge of a well using ground water storage: Transactions, American Geophysical Union, vol. 16, pp. 518-524.

A-1

APPENDIXB

WELL HISTORIES

April 13, 1992

April 14, 1992

April 15, 1992

April 16, 1992

April 17, 1992

April 20, 1992

APPENDIX B

WELL HISTORY SUPERIOR WELL NO. 19

Driller mobilizes to site. Location staked for Well No. 19. Mud pits dug by employee of the Town of Superior, Wyoming. Rigged up and started filling mud pits with fresh water from Superior Well No. 17 . Bentoni te/Soda Ash mixed with water to prepare drilling fluid. Drill 70 feet with 9-inch drag bit. Trip out of hole and change to 8 3/4-inch rock pit.

Add 1500 gallons of fresh water (Superior Well No. 18) to mud pits. Condition mud, add dry polymer (Drispac) and liquid polymer (Alcomer). Drill 331 feet of 8 3/4-inch hole (70 to 401 feet). Trip out of hole.

Ream the hole {swelling) from 64 feet to 401 feet. Recirculate and condition hole. Add 1500 gallons of fresh water to mud pit, circulate to thin mud prior to installing 7-inch casing. Run casing in hole - 403 feet of 7-inch welded casing (17 pounds/foot) installed (2 feet of stick-up above ground level) . casing cemented in place by Halliburton Services out of Rock Springs, Wyoming (85 sacks of AG-300 cement and 21 pounds of Flocele). Waiting on cement (WOC).

Cement tagged at 19 feet below ground level (bgl). Additional 7 sacks (80 pounds/sack) of cement trimmied into hole to grout casing to the surface. Cement grout cured 18 hours; start tripping into hole with 6 1/4-inch rock bit. Drill through cement. Drill 359 feet of 6 1/4-inch hole (401 to 760 feet) with fresh water. Trip out of hole.

Change to a 6 1/4-inch steel tooth bit. Well flowing at approximately 5 gpm. Drill 208 feet of 6 1/4-inch hole (760 to 968 feet) to the well TO. Condition hole with fresh water. Develop well (Air-lifting) for 15 minutes.

Circulate and condition hole for logging run. Developing well for 1.5 hours (Air-lifting). Well logged by Strata Data Inc. out of Casper, Wyoming.

B-1

April 21, 1992

April 22, 1992

April 23, 1992

April 29, 1992

April 29, 1992

May 6, 1992

May 9, 1992

Install 4-inch blank steel casing and 4-inch Johnson v-slot, 0.015-inch stainless steel screen (welded).

Weld liner hanger to packer construction of well.

finish

Air develop for 5.25 hours (total air development equals 7 hours).

Run step drawdown aquifer test.

start constant discharge drawdown aquifer test (discharge rate at 80 gpm).

Terminate constant discharge drawdown aquifer test and start constant discharge recovery aquifer test.

Demobilize, cleam up drill site area and reseed the disturbed areas.

B-2

APPEND/XC

BOREHOLE PENETRATION

RATES

APPENDIX C

SUPERIOR \lELL NO. 19

iENETRATION RATE

(min/ft) DEPTH (FT) 0 10 20 30 40 50 60 70 80 90

0 0.2 0.2 0.2 0.2 0.2 0.2 0.6 0.8 0.5

100 0.4 0.8 0.5 0.6 0.7 0.7 0.7 0.6 0.6 0.5

200 0.6 0.5 0.6 1.2 0.6 0.7 0.6 0.6 0.7 0.6

300 0.6 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.7 0.6

400 0.6 0.6 0.8 0.6 0.5 0.4 0.5 0.4 0.7 0.5

500 0.6 0.5 0.5 0.4 0.3 0.4 0.5 0.6 0.7 0.6

600 0.5 0.6 0.8 1.3 1.0 0.6 0.6 0.5 0.6 0.6

700 0.7 0.5 0.6 1.7 1.1 0.6 1.4 0.6 0.7 0.7

800 0.9 0.7 0.8 0.7 0.7 0.7 0.7 0.7 1.0 0.8

900 0.7 0.7 0.7 0.9 1 .1 0.9 1.0

c-'

APPENDIXD

BIT RECORDS

APPENDIX D

SOPERIOR WELL NO. 19

BIT RECORD

No. Date Size Depth Depth New/ Total Bit (in) Type In(ft) Out(ft) Used Footage

1 4/13/92 9 Drag Bit Surface 70 Used 70

2 4/14/92 8-3/4 Carbide Rock 70 402 Used 332

3 4/16/92 6-1/4 Carbide Rock 401 760 Used 359

4 4/17/92 6-1/4 Steel Tooth 760 960 New 200

D-1

APPENDIXE

LITHOLOGIC DESCRIPTIONS

0-10

10-20

20-30

30-40

40-50

50-60

60-70

70-80

80-90

Footage

90-100

100-120

120-130

130-140

140-150

150-160

160-170

170-180

180-190

190-200

200-210

Silt

Silt

Silt

Silt

Silt

Principal Lithology

Clay

Clay & Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

APPENDIX E

SUPERIOR WELL NO. 19 LITHOLOGIC DESCRIPTIONS

Description

Quaternary alluvium brn, clay rich vf sandy s i l t some gypsum

aa

aa

aa

aa

Orange-tan wI vf silty sand

Clay aa wI blacK shale

Oark gray, mod-well indurated silty shale

aa

aa

aa

aa

aa

aa, mod fissile

aa

Dark gray, well indurated, mod fissile, silty shale

aa

aa

Dark gray-blacK, mod well indurated, silty shale

aa

E-l

Drilling Characteristics

and COIIIIIents

Smooth, fast, est. flow rate (gpm)

Smooth, fast

A little rougher

Smooth, fast

Smooth, fast

Rougher and slower at about 55 1

Change bit at 70 1 ;

8.75 rocK bit carbide-tipped

mod fast & smooth

aa

aa

aa, reamed hole

mod fast & smooth, start adding 1 qt liq. polymer down drill pipe at each connection

mod fast, little rougher

mod fast, smooth

mod fast, little rougher

mod fast, smooth

aa

aa

aa

mod fast, little rough

Footage

210-220

220-230

230-240

240-250

250-260

260-270

270-280

280-290

290-300

300-310

310-320

320-330

330-340

340-350

350-360

360-370

370-380

380-390

390-400

400-403

Principal Lithology

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Shale

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Descri pt i on

aa + mod fissile

aa

aa

aa

Dark gray-black, mod well indurated, sitly shale

aa

Dark gray, mod well indurated, homogeneous shale

aa

aa

Dri II ing Characteri s tics

and Conments

mod fast, smooth, added 15#s sol id polymer to mud, reamed hole for tight spots

mod fas t, smooth

aa

aa

aa

aa

aa

aa

aa

Dark gray-black mod well indurated, aa homogeneous shale

aa

aa

aa

dark gray-black, mod well indurated, vf sandy shale

ALMOND FORMAT I ON

Lt gray, f gr, mod well indurated wI black & white grains mixed throughout

aa

aa

aa wI minor black shale

Lt dk gray, f grains, soft, wI black & white trace grains

aa

END OF 8.75 INCH HOLE

E-2

aa

aa, added 500 gal water to mud

rougher, mod fast

smooth, mod fast, prob. top of Almond 350 1

smooth, mod fast

rougher & harder for 21, then smooth & mod fast

smooth, mod fast

alternating rough & smooth zones

aa

vi scos i ty: 37 for lower level cup to drain funnel

secs of

from

Footage

400-410

410-420

420-430

430-440

440-450

450-460

460-470

470-480

480-500

500-510

510-520

520-530

530-540

540-550

550-560

560-570

570-580

580-590

590-600

Principal Lithology

Sandstone & Shale

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Description

START OF 6.25 INCH HOLE

Lt gray, f-v gr, soft, tr dark grains (dark gray-black), well indurated

L t gray, f-v f gr, soft ss, trace dark gray-black shale

Lt gray, f-vf gr, soft, ss (unconsolidated as sample cuttings) trace dark grains (clean ss)

Lt gray, f-vf, uncons ss (as cuttings), trace lt & dark grains

Lt gray, f-vf gr, uncons ss, tr black and white grains

ss aa wI tr black shale

Lt gray, vf-f gr, uncons ss, tr black & white grains, subang-subrd

Lt gray, vf-f gr, uncons ss, tr black & white grains

aa wI tr mudstone

Lt gray, vf-f gr, subang-subrd, unconsolidated ss, tr dark & white grains, trace shale, lt gray, trace black coal

aa

Lt gray, vf-f gr, subang-subrd, uncons, wI tr dark & white grains

aa

aa wI tr coal

Lt gray, vf-f gr, subang-subrd, uncons, tr dark grains

aa wI tr lt gray silty shale

Lt gray, vf-f gr, silty ss, tr black grains, tr lt gray silty shale

aa

Lt gray, vf-f gr, subang-subrd, silty uncons ss, tr black soft mudstone & black grains

E-3

Drilling Characteristics

and Conaents

rough wI short smooth intervals, drilling through cement plug & shoe, fresh water as drilling fluid

rough wI short smooth intervals

alternating rough & smooth, mod fast; ss is unconsolidated as return cuttings and assumed to be soft & poor l y cemented in subsurface

smooth, mod fast, last 5' rough

mod smooth, mod fast

rough, mod fast

mod rough, mod smooth

rough, mod fast

mod rough, mod fast

smooth, mod fast

aa

aa

rough & fast

mod rough & fast

aa

rough & mod fast

aa

rough & mod fast

Footage

600-610

610-620

620-630

630-640

640-650

650-660

660-670

670-680

680-690

690-700

700-710

710-720

720-730

730-740

740-750

750-760

760-no

nO-780

Principal Lithology

Sandstone Mudstone

Sandstone Mudstone

Sandstone Mudstone

Sandstone Mudstone

Sandstone Mudstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

Sandstone

&

&

&

&

&

Shale & Sandstone

Sandstone & Shale

Sandstone

Sandstone & Coal

Sandstone & Coal

Sandstone & Mudstone probably interbedded

Descr-i pt i on

Lt gray, vf gr si l ty ss, tr black soft RUdstone

aa

Lt gray, vf gr, v silty ss, tr black soft RUdstone

aa

Lt gray, vf gr, v silty ss, tr black soft RUdstone

Lt gray, vf-f gr silty ss, soft (uncons as cuttings), tr black grains

Lt gray, vf gr silty ss, uncons, tr black grains

aa

Lt gray, vf-f gr, silty ss, uncons, tr black grains, tr black soft RUdstone

aa

Lt gray, vf gr, silty uncons ss, tr black grains

Lt gray, f-vf gr silty uncons ss wI tr black and white grains, tr soft black shale

Black, well indurated shale, lt gray, vf gr uncon ss wI tr black grains

aa

Lt gray, vf-f gr ss, wI tr black grains, tr black, hard coal

Lt gray, vf-f gr, uncons ss, tr black grains, tr white grains, black hard coal

Lt gray, vf-f gr, soft silty ss, black hard coal

Lt gray, vf-f gr, silty 55, soft, dark gray soft mudstone, tr dark black, hard coal

E-4

Dr-i II 1ng Characteristics

and Coaaents

mod rough & mod fast

rougher & slower

mod rough, slower

rougher, mod fast

smoother & mod fast


mod smooth, faster

sl ightly rougher & slower


aa

mod smooth & fast

rougher, slower

sl ightly

mod smooth & slower

mod smooth & faster

smoother & faster

rougher & slower; recirculate to trip out of hole to check bi t _ Changed bi t to 6.25 inch new steel tooth bit before tripping in hole, well was flowing about 5 gallmin

mod smooth, mod fast. On bottom at 760 ft

mod smooth, mod fast, flow reduced about 75%

Footage

780-790

790-800

800-810

810-820

820-830

830-840

840-850

850-860

860-870

870-880

880-890

890-900

900-910

910-920

920-930

930-940

940-TO

Principal lithology

Sandstone & Shale pro b a b l y interbedded



Sandstone & Shale interbedded

Mudstone & Shale interbeds

Mudstone & Shale interbeds

Mudstone

Shale

Shale

Sandstone

Sandstone

Sandstone

Sandstone & Shale pro b a b l Y interbedded

Shale

Sandstone & Shale interbedded

Shale

Shale & Sandstone pro b a b l y interbedded

Description

aa

Lt gray-whitish vf-f gr, mod well indurated to soft silty ss, dark gray, mod well indurated shale

Lt gray, vf-f gr silty soft ss, dark gray, mod well indurated shale

Lt gray-white, vf gr silty soft ss wi minor dk grains, dk gray-black well indurated shale

Dark gray sandy soft mudstone, It-dk gary mod well indurated silty shale

Dark gray, vf gr sandy soft mudstone, dark gray, well indurated silty shale

Ok gray, vf gr sandy soft mudstone

Dark gray, soft-mod well ind silty shale

Dark gray mod well indurated shale, tr shiny black hard coal

Lt gray-whitish clear, f-m gr, mod well indurated to soft ss wi tr black grains, trace black, well indurated shale

Lt-dk gray, vf-f gr, mod well indurated to soft ss wi tr black & white grains, tr dark gray-black shale

Lt - dark gray - clearish white, vf-f gr, mod well indurated to soft ss w. tr black grains

Lt - dark gray, vf-f gr, soft·mod indurated silty ss, dark gray - black, well indurated shale

Dark gray - black and dark brown, well indurated silty shale, tr hard black coal

Lt - dark gray - whitish, vf-f gr, mod well indurated, si l ty ss wi tr dark grains, black-dark gray well indurated shale

Black - dark brown, well indurated to soft shale

Dark gray-black, well indurated to soft silty shale, It gray-whitish-clear, vf-f gr, soft-mod indurated ss wi tr black grains

E-5

Dri II ing Characteristics

and CClllEnts

mod smooth, mod fast, ft ow stopped

slightly slower

rougher,


aa

aa

aa

aa

aa

aa

rougher & slower


aa

aa

aa



mod smooth, slightly faster. Driller dri lled extra 10 ft for settling basin; no charge.

APPENDIXF

WATER QUALITY DATA

ENERGY LABORATORIES, INC. ENER6Y I P.o. BOX 3258 • CASPER. WY 82602 • PHONE (307) 235-0515

lABORATIIRIES 254 NORTH CENTER. SUITE 100 • CASPER. WY 82601 • FAX (307) 234-1639

WATER ANALYSIS REPORT - J .M. MONTGOMERY Sample I.D.:

Sample Date: Report Date: Sample Number:

MAJOR IONS mg/l: Ca Mg Na K C03 HC03 S04 Cl N03 (N) F Si02 TDS @ 180 C Cond (umho/cm) Alk-CaC03 pH. (\1Ili ts ) ACldlty Hardness, CaC03 Odor Foaming Agents Color Corrisivity

TRACE METALS mg/l: Ag As Ba B Cd Cr, hexavalent Cu Fe Ph Mn Hg Se Zn RADIOMETRIC pCi/l: U ~a~~g/l) Ra Prec. +/Ra228 Ra228 Prec. +/Gross Alpha Gross Alpha Prec. +/Gross Beta Gross Beta Prec. +/-

Superior Well Head #19 End 05-06-92 06-11-92 92-13964

69.2 28.0 52.0 25.2 o 339 126 5.50

<0.10 0.50 14.7 459 697 278 7.72 -112 288 NA

<1.0 o +0.25

<0.01 <0.001 <0.10 <0.10 <0.01 <0.02 <0.01 0.34

<0.05 0.03

<0.0002 <0.001 0.02

0.677 0.001 0.7 0.2 2.4 0.5

<1.0

20.0 2.6

O.~. DATA: AAlon meq: 8.37 Cation meq: 8.75 A/C Balance: 0.957 WYDEQ A/C Bal.% 2.22 Calc TDS mg/l: 492 TDS A/ C Bal: / 0 . 934 O.A. MANAGER: .;Ii:J.. ~~, ENERGY LABORATORIES, INC. Casper, WY 82601 kmk

Superior Well Head #19 Middle 05-02-92 06-11-92 92-13965

53.6 o 343 117 6.10

<0.18 0.5

386 735 281 7.63 -185

Det.Limit

0.10 0.10 0.05 0.10 1.00 1.00 0.10 1.00 0.10 0.10 0.10 1.0 1.0 1.0 1-14 1.00 1.00 1 T.O.N. 1.00 1 color unit 0.01 std. units

0.01 0.001 0.10 0.10 0.01 0.02 0.01 0.05 0.05 0.01 0.0002 0.001 0.01

0.20 0.0003 0.2

1.0

1.0

0.90-1.10 -5 - +5 0.90-1.10

COMPLETE ENVIRONMENTAL ANALYTICAL SERVICES

ENERGY LABORATORIES, INC. ENERGY P.o. BOX 3258 • CASPER. WY 82602 • PHONE (307) 235-0515

LABORATORIES 254 NORTH CENTER. SUITE 100 • CASPER. WY 82601 • FAX (307) 234-1639

LABORATORY REPORT- WATER ANALYSIS FOR REGULATED AND UNREGULATED VOLATILE ORGANICS

Client: J.M. Montgomery

Project: Superior Well #19 Description: Clear

ELI #: 92-13964

Constituent

Benzene --------------------Bromobenzene --------------Bromochloromethane --------Bromodichloromethane -------Bromoform -----------------Bromomethane --------------n-Butylbenzene ------------sec-Butyl benzene ----------tert-Butylbenzene ---------Carbon tetrachloride -------Chlorobenzene -------------Chloroethane --------------Chloroform ----------------Chloromethane --------------2-Chlorotoluene ------------4-Chlorotoluene -----------Dibromochloromethane -------1,2-Dibromo-3-chloropropanel,2-Dibromoethane ---------Dibromomethane -------------1,2-Dichlorobenzene -------l,3-Dichlorobenzene --------1,4-Dichlorobenzene -------Dichlorodifluoromethane ---l,l-Dichloroethane --------l,2-Dichloroethane --------l,l-Dichloroethene --------cis-l,2-Dichloroethene ----trans-l,2-Dichloroethene ---1,2-Dichloropropane --------

ug/L

<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <1.00 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50

Sample Date: Date Received: Analysis Date: Report Date:

Analyst: SEC

Constituent

05-06-92 05-07-92 05-12-92 05-12-92

1,3-Dichloropropane --------2,2-Dichloropropane -------l,l-Dichloropropene -------cis-l,3-Dichloropropene ---trans-l,3-Dichloropropene -Ethylbenzene --------------Hexachlorobutadiene --------Isopropylbenzene -----------4-Isopropyltoluene --------Methylene chloride --------Naphthalene ---------------Propylbenzene -------------Styrene --------------------1,1,1,2-Tetrachloroethane --1,l,2,2-Tetrachloroethane -Tetrachloroethene ---------Toluene --------------------1,2,3-Trichlorobenzene -----1,2,4-Trichlorobenzene -----1,1, I-Trichloroethane ------1,1,2-Trichloroethane -----Trichloroethene -----------Trichlorofluoromethane l,2,3-Trichloropropane 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Vinyl chloride ------------m+p Xylenes ---------------o Xylene -------------------

ug/L

<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50

Remarks: Sample was properly preserved and was analyzed in accordance with EPA method 502.2.

Q.A. MANAGER: A'.() .. ~ Energy Laboratories, Inc. Casper, WY 82601

kmk


ENERGY LABORATORIES, INC. ENERGY P.o. BOX 3258 • CASPER. WY 82602 • PHONE (307) 235-0515

LABORATORIES 254 NORTH CENTER. SUITE 100 • CASPER. WY 82601 • FAX (307) 234-1639

LABORATORY REPORT

To: J.W. Montgomery Sample 1.0.: Superior #19 (Well Head End)

CONSTITUENT

WATER ANALYSIS EPA METHOD 515

Lab No: 92-13964 Sample Date: 05-06-92 Extracted Date: 05-13-92 Analysis Date: 06-08-92 Report Date: 06-10-92 Analyst: JR

ug/l

2,4-0 -------------------------------------------------------------- <1.0 2,4,5 -TP (Silva) -------------------------------------------------- <0.10

Quality Assurance Report: Surrogate Recovery

Recovery % Acceptance Range 2,4-Dichlorophenyl ------------------- 88 -------------------- (70-130)

Q.A. MANAGER: #.(J. ~ Energy Laboratories, Inc. Casper, WY 82601

kmk


ENERGY LABORATORIES, INC. !ENERGy7 P.o. BOX 3258 • CASPER. WY 82602 • PHONE 13071235-0515

/ LABORATORIES / 254 NORTH CENTER. SUITE 100 • CASPER. WY 82601 • FAX 13071234-1639

/'

LABORATORY REPORT

To: J.W. Montgomery Sample I.D.: Superior #19 (Well Head End)

CONSTITUENT

WATER ANALYSIS EPA METHOD 508

Lab No: 92-13964 Sample Date: 05-06-92 Extracted Date: 05-13-92 Analysis Date: 05-31-92 Report Date: 06-10-92 Analyst: JR

ug/l

gamma-BHC ---------------------------------------------------------- <0.05 Endrin ------------------------------------------------------------- <0.05 Methoxychlor ------------------------------------------------------- <0.50 Toxaphene ---------------------------------------------------------- <1.0

Quality Assurance Report: Surrogate Recovery

Recovery % Acceptance Range Dibutylchlorendate ------------------- 89 -------------------- (70-130)

Q • A. MANAGER: K?tl kt-u:., Energy Laboratories, Inc. Casper, WY 82601

kInk


of 1

MONTGOMERY LABORATORIES a division of James M. Montgomery, consulting Engineers, Inc.

555 East Walnut street, Pasadena, California 91101 (818) 796-9141 / (213) 681-4255 Telex 67-5420

Report of analysis for COLIFORM ORGANISMS*

SUPERIOR TOWN WWDC APPL/WYO-1 170 N. 5th st. P.O. Box 29 Laramie, WY 82070 Attn: Todd Jarvis

Date Sampled: Date Completed:

5/7/92 5/8/92

Sample Lab# Description

M55148 WELL HEAD #19

Job#: PO#: Workorder#: Report# : Phone #:

Date Received:

Total Coliforms MPN/100ml

<1.1

* Analyzed using Colilert test procedure.

Approved by ~,

1589.0040

W41573 R95943 307 742-9220

5/7/92

E.coli MPN/100ml

<1.1

APPROVED

MAY 1 2 1992

REcr-J - , c. VEO MAY 1 ~ 1992 Page 1 of 1

MONTGOMERY LABORATORIES a division of James M. Montgomery, Consulting Engineers, Inc.

555 East Walnut Street, Pasadena, California 91101 (818) 796-9141 / (213) 681-4255 Telex 67-5420

Report of Microbiological Analysis for STANDARD PLATE COUNT


Date Sampled: Date Analyzed:

5/7/92 5/7/92



Approved by

Job#: PO#: Workorder#: Report# : Phone #:

Date Received:

Standard Plate Count (#/ml)

47

1589.0040

W41573 R95945 307 742-9220

5/7/92

MAY 1 2 1992

i~:':CE1VEO MAY'") 2 '- I:1~~e 1 of 1



Report of analysis for FECAL STREPTOCOCCUS ORGANISMS



Lab#

5/7/92 5/11/92

Sample Description


Approved by

Job#: POi : Workorder#: Report# : Phone #:

Date Received: Sampled By:

MPN/100ml

<2.2

1589.0040

W41573 R95944 307 742-9220

5/7/92 Client

APPROVED

MAYA.t 8 1992

RECt. i'l r- l' . 'I J., 4~ I '- ~! ; . - -. { I ''t ~wge 1 of 1



Report of Microbiological Analysis for IRON BACTERIA



5/6/92 5/7/92


~55148 WELL HEAD #19

!'<pproved by ~

Job#: POI : Workorder#: Report# : Phone #:

Date Received:

Iron Bacteria (#/ml)

None detected

1589.0040

W41573 R95946 307 742-9220

5/7/92

APPROVED

MAY 0 6 1992

APPENDIXG

AQUIFER TEST DATA

Elapsed Time (min)

0 0.0033 0.0066 0.0099 0.0133 0.0166 0.02

0.0233 0.0266 0.03

0.0333 0.05

0.0666 0.0833

0.1 0.1166 0.1333 0.15

0.1666 0.1833

0.2 0.2166 0.2333

0.25 0.2666 0.2833

0.3 0.3166 0.3333 0.4167

0.5 0.5833 0.6667 0.75

0.8333

TOWN OF SUPERIOR


Date: Tested By: Supervised By:

Pumping Equipment:

STEP-DRA~~N TEST

29-Apr-92 Watson Well Service, Laramie, Wyoming Todd Jarvis, James M. Montgomery, Consulting Engineers, Inc. Laramie, Wyoming

Goulds 20 hp submersible pump rated at 150 gpm set at 357 ft.

Monitoring Equipment: In-Situ Hermit SE1000B; 250 psi capacity transducer set at 356 ft; two airlines set at 337 ft; inline totalizing flow meter

Discharge Rates: 15, 30, 60, and 120 gpm

Stet: Pumping Well

Conments: Elapsed

Drawdown Time Drawdown (ft) Conments (min) eft) Conments

0.39 Start 15 gpm step 0.9167 8.85 2.13 Adj. Down 1 9.09 2.92 1.0833 9.65 1.89 1.1667 9.65 2.92 1.25 10.83 3.4 1.3333 10.2

3.24 1.4166 10.44 2.84 1.5 10.44 3.24 1.5833 11.23 3.48 1.6667 11.31 2.76 1.75 11.46 4.11 1.8333 12.02 3.63 1.9167 12.81 4.19 2 12.18 Adj. Down 4.03 2.5 12.89 3.87 3 13.44 3.87 3.5 13.28 4.19 4 12.18 4.11 .4.5 11.62 4.27 5 12.02 Adj. Up 4.66 5.5 10.59 4.82 6 9.n 4.82 6.5 9.n 4.98 7 8.93 Adj. Up 4.82 7.5 8.22 4.9 8 8.22 Adj. Down 5.22 8.5 9.49 4.9 9 10.12 5.22 9.5 10.12 6.01 10 10.44 Adj. Up 6.96 12 8.78 7.27 14 9.17 7.83 16 9.49 7.91 18 10.04 9.01 20 10.12

G - 1


STEP-DRAWOIJN TEST

Elapsed Elapsed Time Drawdown Time Orawdown (min) (ft) Comnents (min) (ft) Comnents

22 9.8 23 min, Adj. Up 1.1667 21.83 24 9.72 25 min, Adj. Up 1.25 22.46 26 10.2 Adj. Up 1.3333 23.57 28 11. 78 Adj. Down 1.4166 23.96 30 11.78 Adj. Up 1.5 24.52 32 11.54 33 min, Adj. Up 1.5833 24.83 34 10.67 Adj. Up 1.6667 25.78 36 10.75 1.75 26.1 38 11.31 1.8333 27.21 40 11.78 1.9167 27.44 42 11.39 2 27.76

2.5 31.16 0 12.65 Step up to 30 gpm 3 33.93

0.0033 12.1 3.5 35.75 0.0066 12.97 4 38.36 0.0099 12.49 4.5 39.7 0.0133 12.49 5 42.16 0.0166 12.97 5.5 43.9 0.02 12.57 6 45.48

0.0233 12.65 6.5 45.79 0.0266 12.49 7 47.22 0.03 12.73 7.5 48.25

0.0333 12.57 8 49.28 0.05 12.73 8.5 50.54

0.0666 13.28 9 50.62 Pump stops, lose main 0.0833 13.36 9.5 49.2 power

0.1 13.52 10 42.71 10.5 min, Pump restarts 0.1166 13.28 12 46.19 13min, 32.12gpm; Adj Down 0.1333 13.44 14 52.76 Q=29.34gpm 0.15 13.84 16 54.89

0.1666 13.84 18 56.87 0.1833 14.63 20 58.77

0.2 14.39 22 59.08 0.2166 14.23 24 60.43 Q=29.26gpm; Adj. Up 0.2333 15.1 26 61.22 T=17.5C; pH=7.6; Cond=790 0.25 14.55 28 62.01

0.2666 14.87 30 62.72 0.2833 15.26 32 62.72 Q=28.92gpm; Adj. Up

0.3 15.26 34 63.04 35 min, 29.14gpm; Adj. Up 0.3166 15.42 36 64.07 Adj. Up: 37 min, 28.82gpm 0.3333 15.02 38 63.67 Q=28.92gpm; Adj. Up 0.4167 16.37 40 63.99 Q=28.74gpm; Adj. Up

0.5 16.84 42 64.23 0.5833 17.24 44 64.78 0.6667 18.58 0.75 18.82 0 65.49 Step up to 60 gpm

0.8333 20.17 0.0033 66.28 0.9167 20.25 0.0066 66.12

1 20.32 0.0099 66.04 1.0833 22.22 0.0133 65.97

G • 2


STEP-DRAYDOYN TEST

Elapsed Elapsed Time Drawdown Time Drawdown (min) (ft) Conments (min) (ft) Conments

0.0166 65.57 Adj. Down 6.5 111.05 0.02 65.97 7 112.87

0.0233 66.04 7.5 114.53 0.0266 66.28 8 115.88 Q=57.20gpm; Adj. Up 0.03 66.6 8.5 117.7

0.0333 66.28 9 119.2 0.05 65.89 9.5 120.47

0.0666 66.76 10 121.81 Q=59.70gpm 0.0833 66.2 12 125.53 13 min, 56.44gpm; Adj. Up

0.1 66.91 14 129.09 15 min, Q=56.66gpm 0.1166 66.28 Adj. Down 16 131.86 Q=59.17gpm; Adj. Up 0.1333 66.68 18 135.73 17 min, Q=60.61gpm 0.15 67.23 20 139.29

0.1666 67.15 22 141.82 23 min, Q=60.06gpm 0.1833 67.47 24 143.64

0.2 67.31 26 144.99 0.2166 67.39 28 146.18 0.2333 67.31 30 147.36 Q=58.37gpm; Adj. Up

0.25 67.63 32 147.84 33 min, Q=60.06gpm 0.2666 67.71 34 149.42 0.2833 68.1 36 150.76

0.3 68.1 38 151.32 0.3166 67.55 40 151.87 Q=58.77gpm; Adj. Up 0.3333 68.26 42 153.69 41 min, Q=60.91gpm 0.4167 69.05 44 154.4

0.5 69.29 Q=42.19gpm; Adj. Up 46 154.88 0.5833 69.6 0.6667 70.63 0 157.01 Step up to 120 gpm 0.75 71.19 0.0033 157.17

0.8333 71.19 0.0066 157.41 0.9167 n.14 0.0099 157.17

1 73.24 Q=52.82gpm; Adj. Up 0.0133 157.09 1.0833 73.95 0.0166 157.57 1.1667 74.9 0.02 157.17 1.25 75.46 0.0233 157.17

1.3333 76.33 0.0266 157.49 1.4166 77.28 0.03 157.25

1.5 77.51 0.0333 158.2 1.5833 78.54 0.05 157.41 1.6667 78.94 0.0666 157.n 1.75 80.05 0.0833 158.04

1.8333 80.68 0.1 158.44 1.9167 81.23 0.1166 158.83

2 82.1 Q=54.05gpm; Adj. Up 0.1333 158.91 2.5 85.42 0.15 158.91 3 89.54 Q=55.71gpm; Adj. Up 0.1666 159.7

3.5 92.86 0.1833 159.7 4 96.97 Q=60.24gpm 0.2 159.78

4.5 100.22 0.2166 159.94 5 102.91 T=16C; pH=7.8; Cond=810 0.2333 160.73

5.5 105.99 0.25 160.89 6 108.76 0.2666 160.73

G - 3


STEP·DRA~OWN TEST

Elapsed Elapsed Time Or-awdown Time Or-awdown (min) (ft) Cooments (min) (ft) Cooments

0.2833 161.05 0 356.27 Star-t Recover-y 0.3 161.36 0.0033 356.35

0.3166 161.44 0.0066 356.51 0.3333 161.68 0.0099 356.43 0.4167 163.34 0.0133 356.43

0.5 164.13 0.0166 356.35 0.5833 165.95 0.02 356.51 0.6667 167.22 0.0233 356.35 0.75 168.56 Q=87.08gpm; Adj. Up 0.0266 356.43

0.8333 170.54 0.03 356.35 0.9167 172.2 0.0333 356.43

1 173.7 Q=101.35gpm; Adj. Up 0.05 355.64 1.0833 175.52 0.0666 354.53 1.1667 176.95 0.0833 353.42

1.25 178.45 0.1 352.31 1.3333 179.79 0.1166 351.05 1.4166 181. 14 0.1333 350.18

1.5 183.12 0.15 348.99 1.5833 185.01 0.1666 347.88 1.6667 186.75 0.1833 346.78 1.75 188.89 0.2 345.83

1.8333 190.79 0.2166 344.72 1.9167 192.21 0.2333 343.61

2 194.11 Q=112.57gpm; Adj. Up 0.25 342.58 2.5 203.92 0.2666 341.64 3 213.33 Q=116.5gpm; Adj. Up 0.2833 340.61

3.5 222.51 0.3 339.66 4 231.29 Q=118.81gpm 0.3166 338.55

4.5 239.12 0.3333 337.44 5 246.4 Q=119.70gpm 0.4167 332.38

5.S 252.41 0.5 327.48 6 257.63 0.5833 322.73

6.5 262.69 0.6667 317.98 7 266.65 0.75 313.32

7.5 270.13 7.75 min, Adj. Up 0.8333 308.73 8 273.69 Adj. Up 3 times 0.9167 304.3

8.5 277 .17 1 299.95 9 281.04 Q=122.95gpm 1.0833 295.84

9.5 285.31 1.1667 291.57 10 289.9 1.25 287.45 12 304.46 Q=117.88gpm; Adj. Up 1.3333 283.34 14 312.92 1.4166 279.54 16 318.77 Adj. Up; Adj. Up 1.5 275.58 18 324.08 1.5833 271.87 20 327.63 21 min, Adj. Up 1.6667 268.07 22 330.4 Adj Up: 23.5min, Adj Up 1.75 264.19 24 334.6 Adj. Up 1.8333 260.48 26 339.82 27 min, 119gpm; Adj. Up 1.9167 257.08 28 343.93 27.75min, Adj Up: Adj Up 2 253.67 30 348.2 29 min, Adj. Up 2.5 233.9 32 351.76 Adj Up: 32.Smin, Adj Up 3 215.86 34 355.24 S TOP 3.5 199.57

G - 4


STEP-ORAWDOWN TEST

Elapsed Elapsed Time Orawdown Time Orawdown (min) (ft) Conments (min) (ft) Conments

4 184.78 4.5 171.41 5 159.31

5.5 148.23 6 138.11

6.5 128.77 7 120.39

7.5 112.56 8 105.36

8.5 98.79 9 92.78

9.5 87.16 10 82.1 12 64.38 14 51.73 16 42.39 18 34.88 20 28.95 22 24.44 24 20.25 26 17.32 28 14.79 30 12.73 32 10.83 34 9.09 36 7.75 38 6.48 40 5.37 42 4.19 44 3.32 46 2.45 48 2.37 50 2.29 52 2.37 54 2.21 56 2.21 58 2.21 60 2.13 62 2.29 64 2.21 66 2.13 68 2.13 70 1.42 72 0 74 0 76 0.15 End Recovery

G - 5

Elapsed Time (min)

0 0.0033 0.0066 0.0099 0.0133 0.0166 0.02

0.0233 0.0266 0.03

0.0333 0.05

0.0666 0.0833

0.1 0.1166 0.1333 0.15

0.1666 0.1833

0.2 0.2166 0.2333 0.25

0.2666 0.2833

0.3 0.3166 0.3333 0.4167

0.5 0.5833 0.6667

0.75 0.8333

TOWN OF SUPERIOR


Date: Tested By: Supervi sed By:

Pumping Equipment:

Monitoring Equipment

Discharge Rate:

Stet:

Conments:

Drawdown (ft)

7.11 7.51 7.51 8.22 8.46 8.38 8.78 9.17 9.8 10.2 10.12 12.57 13.52 15.97 17.16 19.45 21.12 22.7 23.96 26.41 27.68 28.95 30.84 32.74 33.3

35.35 37.01 38.99 40.1 45.4 52.76 56.63 60.9 64.78 68.58

CONSTANT-DISCHARGE DRAWD~N

29-Apr-92 Watson Well Service, Laramie, Wyoming Todd Jarvis, James M. Montgomery, Consulting Engineers, Inc. Laramie, Wyoming Goulds 20 hp submersible pump rated at 150 gpm set at 357 ft.

In-Situ Hermit SE1000B; 250 psi capacity transducer set at 356 ft; two airlines set at 337 ft; inline totalizing flow meter 80 gpm

Pumping Well

Well flowing 3.5 gpm at beginning of test

Elapsed Time Drawdown

Conments (min) (ft)

Start Test; Adj down 0.9167 71.98 1 75.3

1.0833 78.15 1.1667 80.2 1.25 82.5

1.3333 84.63 1.4166 86.77

1.5 87.96 1.5833 90.33 1.6667 91.99 1. 75 92.86

1.8333 94.2 1.9167 95.71

2 97.53 2.5 104.88 3 111.37

3.5 117.3

Conments

4 123.24 T=15.5C; pH=7.55; Cond=720 4.5 128.06 5 132.02

5.S 136.4S 6 140.24 Airline Pressure=88psi

6.5 143.33 7 146.25 Adj up

7.5 149.26 8 151.24

8.S 153.61 9 155.9 Adj up

9.5 159.62 10 162.39 Adj up 12 176.71 11 min; Adj down 14 185.73 16 191.74 18 196.56 20 199.96 Airline Pressure=64psi

G - 6


CONSTANT-DISCHARGE DRA~~N

Elapsed Elapsed Time Drawdown Time Drawdown (min) (ft) Conments (min) (ft) Comnents

22 202.5 230 262.61 24 204.47 240 262.93 26 205.98 Adj up 250 263.8 Airline Pressure=43psi 28 207.72 27 min; Adj up 260 263.8 30 211.59 T=16C; pH=7.4; Cond=750 270 264.35 32 214.44 280 264.83 Airline Pressure=41psi 34 215.78 35 min; pressure=60psi 290 265.7 36 217.68 Adj up 300 265.46 Pressure=41psi; T=16C; 38 220.29 310 266.09 pH=7.5; Cond=740 40 222.19 320 266.41 42 224.41 330 266.33 44 226.07 Airline Pressure=54psi 340 266.96 46 226.31 350 267.04 48 227.33 360 267.44 50 228.36 Airline Pressure=51psi 370 268.39 52 228.68 380 268.31 54 229.07 390 268.54 56 229.55 400 268.47 58 230.58 410 269.49 60 231.05 T=16C; pH:7.4: Cond=740 420 269.65 62 230.97 430 269.89 64 231.76 440 269.57 66 232.32 450 269.97 68 232.95 460 270.6 70 233.11 470 270.36 72 233.34 480 270.13 Pressure=35psi: Adj up 74 233.74 490 274.56 76 233.98 500 275.98 78 234.06 510 276.38 80 234.45 520 276.14 82 235.01 Pressure=51psi; Adj up 530 276.69 84 235.88 540 276.69 Pressure=31psi: T=16C: 86 236.43 87 min; Adj up 550 276.69 pH=7.4; Cond=740 88 237.46 560 277.17 90 238.09 570 277.25 92 238.8 580 278.27 94 239.04 590 277.25 96 239.36 600 277.72 98 239.67 610 277.96 100 239.83 107 min; SOpsi; Adj up 620 278.51 110 242.92 630 278.43 120 246.95 T=16C; pH=7.4: Cond=739 640 278.51 130 248.37 650 278.91 140 2S0.75 660 278.83 150 252.49 670 279.22 160 253.28 680 279.38 170 253.67 Airline Pressure=45psi 690 279.7 180 254.46 700 279.62 190 254.86 Pressure=45psi; Adj up 710 279.46 200 259.29 720 280.89 210 261.43 730 280.25 220 262.3 Airline Pressure=45psi 740 280.65

G - 7

SOPERIOR WELL NO. 19

CONSTANT-DISCHARGE DRA~OWN

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

750 280.57 3800 310.39 760 281.28 3900 310.71 Airline Pressure=21psi: no 281.28 4000 310.71 T=15C: pH=7.6: Cond=750 780 281.36 4100 311.02 4180 min: pressure=20psi 790 281.2 4200 311.58 800 281.2 4300 311.66 4330 min: pressure=20psi 810 281.68 4400 313.08 820 281.68 4500 313.4 4555 min; 19psi: Adj up 830 281.6 4600 313.79 840 282.15 4700 317.59 850 282.31 4800 317.9 860 282.31 4900 317.98 870 282.15 875 min: pressure=30psi 5000 318.62 880 283.73 5100 318.3 890 284.52 5200 318.77 900 284.21 5300 319.41 5365 min: 16psi: Adj up 910 284.21 5400 318.93 5380 min: T=15C; pH=7.5: 920 284.21 5500 321.86 Cond=740 930 285.08 5600 321.94 5440 min: 16psi: T=15C; 940 284.76 5700 322.18 pH=7.6: Cond=720 950 284.52 5800 322.57 960 284.76 5900 322.49 970 284.68 975 min: pressure=30psi; 6000 322.49 980 285.39 T=15C: pH=7.6: Cond=722 6100 322.73 990 285.63 6200 323.44 1000 285.87 6300 323.52 1100 286.26 6400 323.36 1200 287.13 1287 min: pressure=30psi 6500 323.76 1300 287.85 T=16C; pH=7.2: Cond=720 6600 324.08 1400 292.99 1460 min: pressure=30psi 6700 324.15 1500 294.33 6800 324.15 6820 min: 15psi: T=15C; 1600 294.49 6900 324.71 pH=7.6; Cond=730 1700 295.12 7000 324.79 1800 295.44 7100 324.55 7135 min: pressure=14psi 1900 295.84 1905 min: 26psi; Adj up 7200 324.71 2000 301.53 1910 min: T=16C; pH=7.4: 7300 324.55 2100 302.4 Cond=740 7400 324.94 7435 min; pressure=14psi 2200 303.19 1990 min; pressure=26psi 7500 324.79 2300 303.51 2335 min: pressure=25psi 7600 324.94 2400 305.01 noo 325.34 2500 304.85 7800 325.18 2600 305.41 7900 325.34 2700 305.8 8000 325.58 2800 306.2 2815 min: pressure=23psi: 8100 325.81 8080 min: 14psi; T=15C; 2900 306.2 T=16Ci pH=7.5: Cond=790 8200 325.74 pH=7.6; Cond=700 3000 307.78 3030 min: pressure=23psi; 8300 325.89 3100 307.78 T=15C: pH=7.5; Cond=740 8400 325.97 3200 307.94 8500 325.89 8530 min: 13psi; T=15C; 3300 308.49 8600 327.95 pH=7.4: Cond=640 3400 309.28 8700 328.27 8660 min: T=16C; pH=7.7; 3500 309.28 8800 328.5 Cond=680 3600 309.6 8900 328.66 3700 309.91 9000 328.58

G - 8

Elapsed Time (min) 9100 9200 9300 9400 9500 9600 9700 9800 9900 10000

Drawdown (ft)

329.14 328.74 329.22 329.06 329.45 329.45 329.38 329.53 329.45 330.01


CONSTANT-DISCHARGE DRA~OWN

Elapsed Time Drawdown

Comnents (min) (tt) Comnents

G • 9

TOWN OF SUPERIOR


CONSTANT-DISCHARGE RECOVERY

Date: 6-May-92 Tested By: Watson Well Service, Laramie, Wyoming Supervi sed By: Todd Jarvis, James M. Montgomery, Consulting Engineers, Inc.

Larami e, Wyomi ng

Pumping Equipment: Goulds 20 hp submersible pump rated at 150 gpm set at 357 ft.

Monitoring Equipment In-Situ Hermit SE1000B; 250 psi capacity transducer set at 356 ft; two airlines set at 337 ft; inline totalizing flow meter

Discharge Rate: 80 gpm

Radial Distance: P~ing Well

Well flowing 3.5 gpm at beginning of test

Elapsed Residual Elapsed Residual Time Drawdown Time Drawdown (min) tIt' (ft) Conments (min) tIt' eft) Conments

0 330.72 Start Recovery Test 0.9167 10909.69 293.62 0.0033 3030304 331.04 1 10001 290.69 0.0066 1515153 331.51 1.0833 9232.053 287.69 0.0099 1010102 332.06 1.1667 8572.184 284.84 0.0133 751880.7 331.43 1.25 8001 282.07 0.0166 602410.6 331.27 1.3333 7501.188 279.22 0.02 500001 329.14 1.4166 7060.156 276.38

0.0233 429185.5 330.64 1.5 6667.667 273.77 0.0266 375940.8 330.4 1.5833 6316.922 271.31 0.03 333334.3 329.61 1.6667 6000.88 268.54

0.0333 300301.3 329.69 1.75 5715.286 265.85 0.05 200001 329.06 1.8333 5455.645 263.32

0.0666 150151.2 328.19 1.9167 5218.301 260.87 0.0833 120049 327.48 2 5001 258.34

0.1 100001 326.76 2.5 4001 244.58 0.1166 85764.29 325.89 3 3334.333 231.76 0.1333 75019.75 325.18 3.5 2858.143 220.37 0.15 66667.67 324.39 4 2501 210.01

0.1666 60025.01 323.68 4.5 2223.222 200.44 0.1833 54556.37 323.12 5 2001 191.74

0.2 50001 322.41 5.5 1819.182 183.75 0.2166 46169.05 321.54 6 1667.667 176.47 0.2333 42864.27 320.83 6.5 1539.462 169.75 0.25 40001 320.12 7 1429.571 163.58

0.2666 37510.38 319.49 7.5 1334.333 157.72 0.2833 35299.27 318.77 8 1251 152.66

0.3 33334.33 317.9 8.5 1177 .471 147.76 0.3166 31586.6 317.35 9 1112.111 143.33 0.3333 30004 316.64 9.5 1053.632 139.14 0.4167 23999.08 313.16 10 1001 135.34

0.5 20001 309.76 12 834.3333 121.81 0.5833 17144.84 306.36 14 715.2857 112.08 0.6667 15000.25 303.19 16 626 104.57 0.75 13334.33 300.19 18 556.5556 98.63

0.8333 12001.48 296.79 20 501 93.81

G - 10


CONSTANT-DISCHARGE RECOVERY

Elapsed Residual Elapsed Residual Time Drawdown Time Drawdown (min) tIt' (ft) Cc:mnents (min) tIt' (ft) Cc:mnents

22 455.5455 90.17 230 44.47826 39.07 24 417.6667 86.53 240 42.66667 38.2 26 385.6154 83.84 250 41 37.73 28 358.1429 81.39 260 39.46154 36.86 30 334.3333 79.49 270 38.03704 36.54 32 313.5 n.67 280 36.71429 35.51 34 295.1176 75.85 290 35.48276 34.96 36 278.m8 74.59 300 34.33333 34.4 38 264.1579 73.01 310 33.25806 33.93 40 251 71.98 320 32.25 33.3 42 239.0952 70.63 330 31.30303 33.06 44 228.2n7 69.68 340 30.41176 32.27 46 218.3913 68.73 350 29.57143 31.71 48 209.3333 67.71 360 28.nn8 31.56 50 201 67.07 370 28.02703 30.61 52 193.30n 66.2 380 27.31579 30.37 54 186.1852 65.49 390 26.64103 29.82 56 179.5714 64.78 400 26 29.66 58 173.4138 63.75 410 25.39024 29.1 60 167.6667 63.2 420 24.80952 28.63 62 162.2903 62.56 430 24.25581 28.16 64 157.25 62.01 440 23.nn7 27.84 66 152.5152 61.3 450 23.22222 27.6 68 148.0588 60.82 460 22.73913 27.13 70 143.8571 60.19 470 22.2766 26.81 n 139.8889 59.64 480 21.83333 26.49 74 136.1351 59.16 490 21.40816 26.18 76 132.5789 58.61 500 21 25.86 78 129.2051 58.13 510 20.60784 25.23 80 126 57.82 520 20.230n 25.07 82 122.9512 57.19 530 19.86792 24.67 84 120.0476 56.71 540 19.51852 24.28 86 117.2791 56.32 550 19.18182 24.2 88 114.6364 55.84 560 18.85714 23.65 90 112.1111 55.76 570 18.54386 23.57 92 109.6957 55.21 580 18.24138 23.41 94 107.383 54.81 590 17.94915 23.01 96 105.1667 54.34 600 17.66667 22.78 98 103.0408 54.18 610 17.39344 22.3 100 101 53.39 620 17.12903 22.38 110 91.90909 51.89 630 16.87302 22.06 120 84.33333 50.46 640 16.625 21.75 130 n.92308 48.88 650 16.38462 21.51 140 72.42857 47.54 660 16.15152 21.27 150 67.66667 46.43 670 15.92537 20.8 160 63.5 45.4 680 15.70588 20.64 170 59.82353 44.37 690 15.49275 20.32 180 56.55556 43.34 700 15.28571 20.32 190 53.63158 42.39 710 15.08451 20.09 200 51 41.44 no 14.88889 19.53 210 48.61905 40.5 730 14.69863 19.37 220 46.45455 39.7 740 14.51351 19.22

G - 11


CONSTANT-OISCHARGE RECOVERY

Elapsed Residual Elapsed Residual Time Orawdown Time Orawdown (min) tIt' (ft) Cotm1ents (min) tIt' (ft) Cotm1ents

750 14.33333 18.9 760 14.15789 18.82 no 13.98701 18.58 780 13.82051 18.5 790 13.65823 18.19 800 13.5 17.95 810 13.34568 17.95 820 13.19512 17.56 830 13.04819 17.32 840 12.90476 17.32 850 12.76471 17.08 860 12.62791 16.61 870 12.49425 16.61 880 12.36364 16.45 890 12.23596 16.21 900 12.11111 16.21 910 11.98901 16.13 920 11.86957 15.66 930 11.75269 15.5 940 11.6383 15.5 950 11.52632 15.18 960 11.41667 14.87 970 11.30928 15.1 980 11.20408 15.02 990 11.10101 14.63 1000 11 14.47 1100 10.09091 12.81 1200 9.333333 11.78 1300 8.692308 10.44 1400 8.142857 9.33 Stop recovery test

G - 12

POINT RESISTIVITY Is.p./ G-G DENSITY leAL/PERI NATURAL GAMMA LOG

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