SUNBURST WATER-SUPPLY RENOVATION WATER-SUPPLY RENOVATION ... the Texas Oil Company drilled as 17 wells to provide water for their ... 3 Classification Soft-water well field

SUNBURST WATER-SUPPLY RENOVATION Project Report to the

Montana Department of Natural Resources and Conservation

Montana Bureau of Mines and Geology Open-File Report 548

By

Peter M. Norbeck

Montana Bureau of Mines and Geology

Sponsored by the town of Sunburst

Funded by the Montana Department of Natural Resources and Conservation

Agreement # RIT-04-8649

April 2006

i

CONTENTS ABSTRACT...........................................................................................................................ii SUNBURST WATER-SUPPLY RENOVATION................................................................1 BACKGROUND ...................................................................................................................1 PROBLEM.............................................................................................................................4 HYDROGEOLOGIC EVALUATION..................................................................................7 Physical Condition of Wells ..............................................................................................7 Hydrogeologic Properties ..................................................................................................9 Water Quality.....................................................................................................................10 WELL PLUGGING AND ABANDONMENT.....................................................................17 WELL RENOVATION OR REPLACEMENT.....................................................................18 SUMMARY...........................................................................................................................18 RECOMMENDATIONS.......................................................................................................19 REFERENCES ......................................................................................................................20

FIGURES Figure 1. Town of Sunburst, well locations...........................................................................2 Figure 2. Geologic map and cross section .............................................................................3 Figure 3. Dark stains caused by water entering Well 15 through corroded casing ...............5 Figure 4. Pump being pulled from Well 13 ...........................................................................8 Figure 5. Observed water level elevations with Wells 15 and 17 in use ...............................11 Figure 6. Modeled water level elevations ..............................................................................12 Figure 7. Generalized water quality in glacial till (Qgt) ........................................................13 Figure 8. Generalized water quality in the Two Medicine Formation (Ktm)........................14 Figure 9. Generalized water quality in the Virgelle Formation (Kvi) ...................................15

TABLES Table 1. Range of hardness concentration .............................................................................1 Table 2. Hardness classification of Sunburst wells ...............................................................4 Table 3. Well data summary ..................................................................................................8 Table 4. Aquifer test data.......................................................................................................9 Table 5. Well measurements and water-quality summary.....................................................16 Appendix A–Water-Well Inventory and Water-Quality Data ...............................................A-1 Appendix B–Downhole Camera Logs ...................................................................................B-1

ii

ABSTRACT

The town of Sunburst has water rights on 12 wells originally drilled to provide water for the

Texas Oil Company’s refinery at Sunburst. Mixing water from Well 17 (hard water) and Well 15

(soft water) has historically provided a suitable water supply for the community. However, in the

summer of 2001, bacteria in the water from Well 15 (soft water) overwhelmed the town's

chlorination system, forcing the town to shut down the well. A sample collected by the Montana

Department of Environmental Quality was found to contain large amounts of sulfur-reducing

bacteria (SRB) (greater than 100 colony-forming units per milliliter). A preliminary

hydrogeologic analysis by the Montana Bureau of Mines and Geology (MBMG) and inspection

of the casing using MBMG's downhole camera indicated that a likely source for SRB was poor-

quality water from shallow aquifers entering the well through holes caused by corrosion of the

steel casing.

MBMG staff supervised pulling pumps from the unused wells, purged the wells by pumping, and

collected samples for major cations (calcium, magnesium, sodium, potassium, iron, and

manganese), major anions (bicarbonate, carbonate, sulfate, chloride, nitrate (as nitrogen), and

fluoride), metals (silver, aluminum, arsenic, boron, barium, beryllium, bromide, cadmium,

cobalt, chromium, lithium, molybdenum, nickel, lead, antimony, selium, strontium, titanium,

vanadium, zinc, zirconium, thallium, and uranium), SRB, iron-related bacteria, and extractible

petroleum hydrocarbons. Well bores were inspected using a downhole camera. Based on a

hydrogeologic analysis by MBMG, analytical results, and the condition of all wells, a decision

was made to attempt to rehabilitate Well 5 (hard water) and Well 13 (soft water) for use as

backup water supply. The remaining wells have been plugged and abandoned except for Well 6,

which was capped for possible future use as an additional supply well.

Unfortunately, the soft-water well could not be rehabilitated, necessitating drilling a replacement.

Well 13 was cased with 10-in casing, which is too small to allow placement and successful

cementing of an 8-in liner. When the 10-in casing could not be pulled, a replacement well

became the most cost-effective alternative. The additional cost of replacing the soft-water well

precluded connecting the backup wells to the system.

1

SUNBURST WATER-SUPPLY RENOVATION

BACKGROUND

Sunburst is a town of about 400 people located at an elevation of 3,350 ft above mean sea level

along I-15, 27 miles north of Shelby, Montana (fig. 1). The town site is situated on glacial

deposits that overlie sediments of the Marias River Formation on the northeast flank of the

Kevin-Sunburst Dome (Berg, 2002 and Lopez, 2002) (fig. 2). Sandstone of the Virgelle

Formation forms prominent bluffs approximately 5 miles west of town. Average annual

precipitation at Cut Bank (18.5 miles southwest) is 12.5 inches (NOAA, 2006). Temperatures

can range from -20° F in February to 100° F in July.

Between 1936 and 1951, the Texas Oil Company drilled as 17 wells to provide water for their

refinery at Sunburst. These wells, completed in sandstone of the Virgelle Formation, were turned

over to the town of Sunburst in 1961 after the refinery closed. The wells are grouped in 2 well

fields: a hard-water field about 2–3 miles west of the outcrop of the Virgelle Formation and

about 6 miles west of town, and a soft-water field about 8 miles west of the Virgelle Formation

outcrop and about 13 miles west of town (fig. 1). Hardness can be considered to represent “the

soap-consuming capacity of a water. The effect results from cations that form insoluble

compounds with soap,” typically calcium and magnesium (Hem, 1992). Table 1 is a generally

accepted hardness classification system, and Table 2 shows where Sunburst wells fit in that

system. All wells in the soft-water well field are soft except Well 12 (moderately hard) and Well

16 (very hard). All of the hard-water wells are classified as very hard. Seven hard-water wells

and 6 soft-water wells were located; 4 others cannot be found, possibly because they were never

drilled.

Table 1. Range of hardness concentration (Hem, 1992). Classification Milligrams per liter, mg/L Soft 0 to 60 Moderately Hard 61 to 120 Hard 121 to 180 Very Hard over 180

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WELL 12WELL 09

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WELL 99WELL 01WELL 06

WELL 10 WELL 05Sunburst

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Figure 2. Geologic map and cross section

Parentheses indicate that formation ispresent but covered by glacial deposits

0 1 2 30.5Miles

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LegendQac Alluvium-colluvium

Kmk Kevin Member of Marias River Fm.Ktc Telegraph Creek Fm.

Ktm Two Medicine Fm.Kvi Virgelle Fm.

Cities & towns

Lakes & reservoirsWell locationsPetroleum well locations

Streams

RoadsPrimary highway, undivided

Street or unimproved roadLight duty or improved roadSecondary highway, undivided

Geology from Berg, 2002 and Lopez, 2001

4

Table 2. Hardness classification of Sunburst wells.

GWIC # Site Name Hardness, mg/L as CaCO3 Classification

Soft-water well field 6832 Town of Sunburst – Well 13 5.20 Soft

201495 Town of Sunburst - Well 15a 5.42 Soft 217028 Town of Sunburst - Well 10 5.89 Soft

6831 Town of Sunburst - Well 11 20.20 Soft 6827 Town of Sunburst - Well 15 52.23 Soft

214904 Town of Sunburst - Well 12 80.02 Moderately Hard 89936 Town of Sunburst - Well 16 470.84 Very Hard

Hard-water well field 6823 Town of Sunburst - Well 1 310.95 Very Hard 6821 Town of Sunburst - Well 7 456 Very Hard

89924 Town of Sunburst - Well 17 474.16 Very Hard 89926 Town of Sunburst - Well 99 589.87 Very Hard

214116 Town of Sunburst - Well 6 605.38 Very Hard 214906 Town of Sunburst - Well 5 615.89 Very Hard

To provide a potable supply suitable for drinking, washing, and other uses, water from Well 15

(soft water) was, and now water from replacement Well 15A is, mixed with water from Well 17

(hard water) at a ratio of about 30% hard water and 70% soft water.

PROBLEM

In late summer of 2001, bacteria in the water from the soft-water well (Well 15) overwhelmed

the chlorination system, forcing the town to shut down the well. The water-quality problem was

originally thought to be related to drilling of petroleum wells at about the same time within a

mile north of Well 15. Although the timing was suspicious, a preliminary hydrogeologic analysis

by the Montana Bureau of Mines and Geology (MBMG) and discovery of low-quality water

leaking past corroded casing in Well 15 during an inspection of the well using MBMG's

downhole camera appeared to rule out contamination from petroleum wells.

5

A sample collected by the Montana Department of Environmental Quality was found to contain

large amounts of sulfur-reducing bacteria (SRB) (greater than 100 colony-forming units per

milliliter). Inspection of the casing using MBMG's downhole camera indicated that a likely

source for SRB was poor-quality water from shallow aquifers entering the well through holes

caused by corrosion of the steel casing below 80 ft (fig. 3). A sample from the top of the water

column in the well suggested contamination by sodium-sulfate water, perhaps derived from

dryland salinity associated with crop/fallow farming practices. The specific conductance of the

water (a measure of dissolved constituents) suggested that the sample contained over 3 times the

level of dissolved constituents as was found in a sample collected by MBMG staff in 1995.

Crop/fallow farming has been practiced for years up-gradient (east) from the soft-water wells.

Without the soft-water well, water supplied to the system was too hard for washing so an attempt

was made to cement an 8-in plastic liner from below the bottom of the steel casing to the surface.

The attempt was unsuccessful and Sunburst had to drill a replacement, Well 15A. Water quality

of the replacement well is similar to pre-2001 samples, which supports the theory that

contamination was from shallow zones through holes corroded in the casing.

Figure 3. Dark stains caused by water entering Well 15 through corroded casing.

6

Well 15 was drilled in 1945, and Sunburst has 11 other wells with steel casings that were drilled

between 1936 and 1951. The condition of the casings was unknown in 2001. Most of these wells

were open to potential contamination from surface sources, and some had oil, grease, and other

debris floating on the water. When the wells were turned over to Sunburst, the pumps (line shaft

turbine pumps driven from the surface) were pulled from 4 wells; an additional 3 wells likely

never had pumps. Secure caps or covers were not in place on Wells 6, 7, and 99. Uncapped wells

potentially provide pathways for contamination of the Virgelle Formation and allow animals to

fall into the well, or rocks or other objects to be introduced. A layer of grease found floating on

top of the water in some wells was a possible nutrient source for bacteria.

The well assessment indicated that plugging and abandonment of unneeded wells and renovation

of two backup wells was necessary to prevent the failure of additional well casings. Failure

would allow poor-quality water from shallow zones to contaminate the Virgelle aquifer and

possibly render the aquifer unusable in the vicinity of the Sunburst wells, with the result that

Sunburst would be forced to find a new water source.

Recognizing the vulnerability of the system to problems arising from contamination or system malfunctions, Sunburst applied for a Reclamation and Development Grants Program (RDGP) grant to protect the system from future problems by identifying the source of the contamination encountered, evaluating the condition of all the wells, and rehabilitating additional wells for use as backup supply wells. Plugging, abandonment, or renovation of these wells would close pathways for entry of

contaminants from the surface via uncapped casings or from poor-quality water from shallow

aquifers via corroded casing. SRB like the type that appeared in Well 15 in 2001 can be difficult

to control and impossible to remove from an aquifer such as the Virgelle Formation. This project

was meant to provide the town of Sunburst with assistance in renovating their wells and in

developing their ground-water resources in a manner that protects the environment and provides

a supply of safe drinking water. Protecting the Virgelle aquifer will protect the health, safety, and

welfare of residents of Glacier and Toole counties who rely on water from that source, as well as

the residents of Sunburst. Cleaning, plugging/abandoning, or renovating the Sunburst wells will

protect the integrity of the resource now and in the future.

7

HYDROGEOLOGIC EVALUATION

MBMG staff assembled available data on the Sunburst and nearby wells from the Ground-Water

Information Center (GWIC) database and other sources including Montana Salinity Control

Association (MSCA) sites (Brown and Holzer, pers. comm., 2006). Most wells in the area had

been inventoried and sampled during earlier studies published by MBMG (Norbeck and Miller,

2000; Zimmerman, 1967). Appendix A presents the water-well inventory and water-quality data

used in this evaluation.

Physical Condition of Wells

Nine wells could not be measured, sampled, or inspected with a downhole camera. Five of these

had non-functional pumps, and 4 other wells had oil and grease or other debris floating on the

water. A drilling contractor was hired to pull the pumps and clean out the wells. Turbine pumps

were pulled from Wells 1, 11, and 13, and piston pumps were pulled from 12 and 16 (fig 4).

Wells 7 and 99 were cleaned of floating grease, and Wells 5 and 6 were cleaned of other debris

by bailing.

MBMG inspected the well bores and casing (table 3) using a downhole camera. Water in most of

the wells exhibited high levels of suspended sediment, making it difficult to obtain a clear picture

of the casing or borehole below the water table. Appendix B presents logs prepared from the

downhole camera tapes. Obstructions were found in some wells, such as wood in Well 6; a

turbine shaft and discharge pipe (presumably attached to a pump) in Well 99; and a ¼-in pipe in

Well 13. Well 11 had an obstruction at a depth of 203 ft that appeared to be the bottom of the

casing (the reported depth was 237 ft); the contractor was unable to remove or drill out the

obstruction.

Corroded casings that allowed water from shallow zones to enter wells were discovered in Wells

11, 12, and 16 (soft water). Available data for Sunburst wells suggested that casings were not

cemented, allowing corrosive waters from shallow zones to contact the casings.

8

Table 3. Well data summary

Well Location

Date Drilled

Casing ID (in)

Depth to Bottom of Casing (ft)

Reported Total Depth (ft) Actual Total Depth (ft)

Well 1 T36N, R04W, Sec14 SW,NW,SW,SE,NE 1936 12 75 155 138 Well 5 T36N, R04W, Sec14 SW,NE,SE,SE,NE 12 105 149 Well 6 T36N, R04W, Sec14 SW,NE,SE,SE,NE 12 115 Obstruction at 129 ft Well 7 T36N, R04W, Sec14 SE,NE,NE,NE,NE 1940 12 77 174 103 Well 10 T36N, R05W, Sec14 E,SW,SW,SW,SW 12 262 Obstruction at 369 ft Well 11 T36N, R05W, Sec12 NE,SW,SW,SW,SE 1943 12 237 407 Obstruction at 203 ft Well 12 T36N, R05W, Sec12 NE,SW,SW,SW,NE 12 330 469 Well 13 T36N, R04W, Sec13 NE,NE,NE,NE,NE 1945 12 283 520 Obstruction at 293 ft Well 13A T36N, R05W, Sec13 SW,NE,NE,NE,NE 2006 10 276 478 478 Well 15 T36N, R05W, Sec01 NE,SW,SW,SW,SE 1945 12 315 475 Well 15A T36N, R05W, Sec01 SE,SW,SW,SW,SE 3/9/2004 10 Pump Well 16 T36N, R05W, Sec01 SE,SW,SW,SW,NE 12 220 416 Well 17 T36N, R04W, Sec14 SW,SW,SW,NE,NE 1951 10 86 159 Pump Well 99 T36N, R04W, Sec14 SE,SE,NE,NE,NE 12 103 148

Figure 4. Pump being pulled from Well 13.

9

Hydrogeologic Properties

Aquifer tests were conducted while pumping the wells to obtain samples (table 4). Initial testing

and sampling was done using a 10 gallon-per-minute (gpm) pump. Wells 5, 6, 13, and 11 were

selected for additional testing based on data from initial tests, water quality, and proximity to the

existing delivery system. A 3-phase pump was used to test these wells further at discharge rates

ranging from 23 to 50 gpm for several hours. Wells 5 and 13 are adjacent to the Sunburst

pipeline and were found to be capable of supplying 175 gpm or more, so they were chosen for

rehabilitation.

Table 4. Aquifer test data

Site Test Date

Pumping Rate (gpm)

Pumping Rate (ft3/min)

Test Duration (min)

Trans-missivity (ft2/min)

Trans-missivity (gpd/ft)

Stor-ativity

Hard-water well field SB-1 10/06/04 11.5 1.54 124 17.27 186,019 1.2 × 10-9

SB-5 10/05/04 12.0 1.60 73 216.20 2,328,733 5.0 × 10-1

SB-5 08/09/05 50.5 6.75 289 31.26 336,708 3.9 × 10-2

SB-6 10/04/04 11.3 1.51 46 2.17 23,400 1.1 × 10-6

SB-6 08/10/05 23.8 3.18 170 4.60 49,558 5.0 × 10-6

SB-7 10/05/04 12.0 1.60 135 1.50 16,146 SB-99 10/05/04 10.6 1.42 61 4.78 51,486 1.1 × 10-4

Soft-water well field SB-10 01/28/05 8.0 1.07 117 0.11 1,149 SB-11 10/06/04 12.7 1.69 96 0.96 10,302 1.6 × 10-2

SB-11 06/14/05 4.5 0.59 480 0.75 8,025 1.4 × 10-1

SB-11 08/10/05 45.8 6.12 131 0.84 9,081 3.8 × 10-3

SB-12 10/07/04 5.0 0.66 28 0.02 167 2.2 × 10-2

SB-13 10/06/04 9.6 1.28 139 1.01 10,868 4.6 × 10-3

SB-13 01/27/05 4.3 0.57 101 1.83 19,711 3.1 × 10-6

SB-13 06/15/05 3.0 0.40 300 0.95 10,214 1.1 × 10-2

SB-13 08/11/05 31.6 4.23 317 1.18 12,710 1.4 × 10-5

SB-15A 03/09/04 200.0 26.74 75 0.96 10,312 SB-16 10/07/04 10.4 1.39 75 0.68 7,333 2.1 × 10-3

Analyzed using the Papadopoulus pumped well technique SB-15A 02/14/03 220 1440 0.36 3,860 1.0 × 10-5

SB-17 250 0.95 10,238 5.0 × 10-5

T (gpd/ft) estimated from specific capacity (gpm/ft of drawdown) times 2,000 Lognormal mean values for Wells 5 and 17 200,227 9.9 × 10-3

Lognormal mean values for Wells 15A and 13 10,171 1.2 × 10-4

10

Aquifer properties from the pump tests were used in a numeric ground-water model (King, 1984)

to compare estimated drawdowns with Wells 15, 17, 5, and 13 pumping at discharge rates of 225

gpm per well to measured water levels with Wells 15A and 17 pumping. Values used in the

model runs were: for the hard-water wells, transmissivity, T = 200,227 gallons per day per foot

(gpd/ft) and storativity (unitless), S = 0.0099; and for the soft-water wells, T = 10,171 gpd/ft and

S = 0.00012. A 5,000-ft grid was laid out over the base map for figures 5 and 6, with additional

grid lines so that each well was on or near a grid intersection. Calibration runs were done with

Well 17 pumping 200 gpm (T = 200,227 gpd/ft and S = 0.0099), and with Well 15A pumping

175 gpm (T = 10,171 gpd/ft and S = 0.00012). The model estimated a drawdown of 46 ft for

Well 17, compared to 32 ft of drawdown based on a reported static water level of 49.2 ft and a

reported pumping water level of 81.3 ft from the GWIC database. The modeled drawdown for

Well 15A was 34 ft, compared to 20 to 40 ft of drawdown based on an estimated static water

level of 3,910 to 3,930 ft and a measured water level of 3,890 ft. The model was run first with

Wells 5 and 17 pumping 225 gpm each (T = 200,227 gpd/ft and S = 0.0099) and second with

Wells 15A and 13 pumping 225 gpm each (T = 10,171 gpd/ft and S = 0.00012). Estimated

drawdowns from both model runs were then summed, and the results were contoured in figure 6.

Contours in figure 5 are the measured water levels with Wells 15A and 17 pumping. The

additional drawdown estimated by the model with Wells 5 and 13 pumping is 100 ft at Well

15A, 60 ft at Well 13, 30 ft at Well 5, and 10 ft at Well 17 (fig. 6). Estimated water levels do not

fall below the top of the Virgelle Formation. Actual pumping rates will be less than the 225 gpm

per well used in the model.

Water Quality

Historical water-quality data are presented in figures 7, 8, and 9 and in Appendix A for the

glacial till, Two Medicine Formation, and Virgelle Formation. Analytical parameters included

major anions and cations, metals, total petroleum hydrocarbons, iron-related bacteria, and SRB.

Analytical data, summarized in table 5, are included in Appendix A.

11

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.4

1.0

1099

10

0,00

0 10

0,00

0

Wel

l 13

1/27

/200

5 20

4.42

20

7.96

4.

3 7.

9 8.

9 12

31

-256

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2.5

1347

48

,000

1–

10

Wel

l 13

8/11

/200

5 24

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1335

>1

0,00

0 >5

,000

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ell 1

5 5/

7/20

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158.

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0.0

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00

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3/9/

2004

15

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00

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00

<1

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l 16

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/200

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ell 1

7 3/

9/20

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250.

0 8.

0 6.

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ell 9

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10

16

17

Most wells completed in the glacial till were constructed by the MSCA during their dryland

salinity studies (Brown and Holzer, pers. comm., 2006). Data from these and other wells suggest

that ground water within the till is dominated by sodium and bicarbonate, or calcium and sulfate,

and have total dissolved solids (TDS) concentrations of less than 2,000 milligrams per liter

(mg/L). Where water in the till is affected by dryland salinity, the TDS levels are greater than

4,000 mg/L, and the ionic constituents are dominantly sodium, calcium, magnesium, and sulfate

(fig. 7).

Wells completed in the Two Medicine Formation are dominated by sodium, sulfate, and

bicarbonate with TDS concentrations less than 2,200 mg/L (fig. 8). Where the Two Medicine is

thought to have been impacted by saline seep, the water is dominated by sodium and sulfate with

TDS levels greater than 3,500 mg/L.

Ground water found in the Virgelle Formation typically is dominated by sodium, sulfate, and

bicarbonate with TDS levels less than 2,000 mg/L (fig. 9). Samples collected from 3 of the

Sunburst wells during 2002 (Well 15) and 2004 (Wells 12 and 16) were found to be high in

sodium and sulfate, suggesting possible contamination from saline-seep-affected water.

WELL PLUGGING AND ABANDONMENT

Wells 1, 7, and 99 (hard water) and Wells 10, 11, and 12 (soft water) were plugged and

abandoned because yields were too low or obstructions were found in the well (Well 11). Well 1

was plugged and abandoned because it is too close to Well 17 and excessive drawdown was

predicted if both wells were pumped at the same time, and because past use of the well caused

stained fixtures. The wells were filled with bentonite chips (Kwik-Plug environmental hole

abandonment material), the casings were excavated to a depth of about 4 ft, cut off, and the sites

were backfilled to approximate original grade. Well 16, which yielded hard water although the

location is in the soft water field, was also sealed.

18

WELL RENOVATION OR REPLACEMENT

Based on sampling and aquifer testing, Well 5 (hard water) and Well 13 (soft water) were

selected for rehabilitation and use as backup supply wells and to supply additional water for

future demand growth.

Aquifer properties indicated that Well 13 (soft water) could yield 200 gpm without drawing

down to the top of the Virgelle. An 8-in casing is the minimum size necessary to allow

installation of a pump capable of 200 gpm. Well 13 was already cased with 10-in steel, making it

difficult or impossible to successfully cement in an 8-in liner. An attempt was made to pull the

10-in casing, but when the casing could not be pulled, a new well was drilled to a depth of 478 ft

and cased with 8-in steel at a site about 300 ft southwest of the original well.

Aquifer test data suggest that Well 5 was capable of yielding 300 gpm with less than 5 ft of

drawdown. The well was 146 ft deep with 12-in steel casing from the surface to a depth of 102

ft. Because the steel casing was probably not cemented and might be subject to corrosion by

shallow water, an 8-in casing was cemented from surface to 110 ft. When the well was cleaned

out after being relined the yield was found to be only 15 gpm, suggesting that the prolific

producing horizon may have been the glacial till, which may be subject to contamination from

saline seep caused by crop/fallow farming in the fields immediately upgradient. The additional

cost of replacing Well 13 precluded connecting the backup wells to the system.

SUMMARY

The town of Sunburst was given 12 water wells in 1961 after the Texas Oil Company shut down

their refinery. A hard-water well (Well 17) and a soft-water well (Well 15) have provided the

town with municipal water since that time. In 2001, corrosion in the steel casing in Well 15

allowed poor quality water from shallow horizons (about 80–85 ft) to enter the well. After an

unsuccessful attempt to save the well by cementing an 8-in liner from the surface to below the

bottom of the 12-in steel casing, the well was plugged and a replacement drilled. The likely

19

cause of water-quality problems is related to dryland salinity resulting from crop/fallow farming

practices upgradient of the soft-water wells.

Sunburst applied for an RDGP grant to plug and abandon unused wells and rehabilitate 2 wells

for use as backup wells. MBMG evaluated the wells, recommended wells to be rehabilitated

(Wells 5 and 13), and supervised abandonment and rehabilitation efforts. Seven wells were

sealed by filling with bentonite, cutting the casing off below ground, and backfilling to the

approximate original grade. In addition, Well 13 was sealed because it could not be rehabilitated,

so a replacement well was drilled. Well 5 was lined by cementing 8-in pipe from surface to

below the bottom of the existing casing, but in doing so, the yield of the well was reduced from

over 200 to about 15 gpm.

The additional cost of replacing Well 13 precluded connecting the backup wells to the system.

RECOMMENDATIONS

The replacement Well 13 should be connected to the Sunburst water system. Additional

sampling should be conducted for representative wells completed in the glacial till to: (1)

determine if the corrosive water encountered in some soft-water wells is caused by saline seep,

(2) determine if corrosive water poses a threat to the hard-water wells, and 3) determine the

source of the high yield originally seen in Well 5.

Because Well 5 is no longer capable of producing sufficient water for use as a supply well for the

town of Sunburst, further investigation may be warranted for Well 6. The well should be cleaned

out to the approximate original depth, the yield checked again, the well re-examined with the

downhole camera to facilitate installation of an 8-in liner, and if the well proves to be usable, a

liner should be cemented in place from the surface to just below the 12-in casing.

20

REFERENCES

Berg, R.B., 2002, Geologic map of the Cut Bank 30' x 60' quadrangle: Montana Bureau of Mines

and Geology Open-File Report 454, 10 p., 1 sheet(s), 1:100,000.

Brown, Scott and Holzer, Jane, 2006, Montana Salinity Control Association, Conrad, MT,

Personal communication.

Hem, John D., 1992, Study and interpretation of the chemical characteristics of natural water:

U.S. Geological Survey Water-Supply Paper 2254, Third Edition, 263 p.

King, James M., 1984, Computing Drawdown Distributions Using Microcomputers: Ground

Water, Vol. 22, No. 6, pp. 780-784.

Lopez, D.A., 2002, Geologic map of the Sweet Grass Hills 30' x 60' quadrangle, north-central

Montana: Montana Bureau of Mines and Geology Open-File Report 443, 4 p., 1 sheet(s),

1:100,000.

National Oceanic and Atmospheric Administration (NOAA) website, 2006,

http://www.wrh.noaa.gov/tfx/dx.php?wfo=tfx&type=clm&loc=products&fx=CLMGTF2

003 .

Norbeck, P.M., and Miller, K.J., 2000, Evaluation of non-point source pollution in the Red River

watershed, Glacier and Toole counties, Montana: Montana Bureau of Mines and Geology

Open-File Report 396, 176 p.

Zimmerman, E.A., 1967, Water resources of the Cut Bank area, Glacier and Toole counties,

Montana: Montana Bureau of Mines and Geology Bulletin 60, 37 p.

Appendix A

Water-Well Inventory and Water-Quality Data

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

S

ITE

NA

ME

TOWNSHIP

RANGE

SECTION

TRACT

ELEVATION

TYPE

CASING

TOTAL DEPTH (ft)

STATIC WATER LEVEL (ft)

PUMPING WATER LEVEL (ft)

PUMPING RATE (gpm)

SU

NB

UR

ST

WE

LLS

1749

82N

ICH

OLS

STE

VE

#1

36N

03W

18B

WE

LL14

.017

4998

NIC

HO

LS S

TEV

E #

236

N03

W18

BW

ELL

13.0

1749

99N

ICH

OLS

STE

VE

#3

36N

03W

18B

WE

LL13

.089

911

HE

ND

RIC

K J

AM

ES

36N

03W

19B

BD

BW

ELL

145.

040

.068

20G

ILLE

SP

IE E

AR

L *

4 M

I NE

MTN

VIE

W S

CH

OO

L36

N03

W19

CC

WE

LL15

0.0

114.

84.

089

912

GIL

LES

PIE

EA

RL

36N

03W

19C

CA

WE

LL15

0.0

60.0

4.0

8991

4G

OE

DD

ER

TZ A

.H. #

136

N03

W30

CB

CD

WE

LL18

3.0

2.0

8991

5G

OE

DD

ER

TZ A

.H. #

236

N03

W30

DD

AC

WE

LL18

3.0

2.0

1736

98M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

OC

*R

R-0

8 #1

236

N04

W2

BD

AD

WE

LL18

.017

3694

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

C *

RR

-08

#636

N04

W2

AB

AB

WE

LL18

.017

3692

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

C *

RR

-08

#736

N04

W2

AA

BA

WE

LL18

.017

3693

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

C *

RR

-08

#836

N04

W2

AA

DB

WE

LL28

.017

3697

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

C *

RR

-08

#11

36N

04W

2A

AC

CW

ELL

28.0

1736

95M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

OC

*RR

-08

#10

36N

04W

2A

CA

AW

ELL

28.0

1737

01M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

OC

*R

R-0

8 #0

536

N04

W2

CA

CB

WE

LL38

.017

3700

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

C *

RR

-08

#14

36N

04W

2B

AA

DW

ELL

38.0

1736

99M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

OC

*R

R-0

8 #1

336

N04

W2

AC

CC

WE

LL43

.017

3696

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

C *

RR

-08

#936

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AC

AD

WE

LL58

.017

3704

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

C *

RR

-08

#136

N04

W3

DD

CC

WE

LL18

.017

3705

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

C*R

R-0

8 #2

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3D

DD

CW

ELL

35.0

1737

03M

T S

ALI

NIT

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ON

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L A

SS

OC

*R

R-0

8 #4

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3D

DA

AW

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38.0

1737

02M

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R-0

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255.

060

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089

918

SU

TA G

. PE

TER

36N

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4A

DB

WE

LL25

2.0

192.

025

2.0

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8991

9S

WE

NS

EN

RA

LPH

36N

04W

7A

CA

WE

LL17

8.0

30.0

15.0

1844

02R

IMR

OC

K C

OLO

NY

36N

04W

7C

CD

WE

LL11

5.0

-4.6

30.0

1657

16M

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ALI

NIT

Y C

ON

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L A

SS

OC

RR

CO

L *

SP

RR

-04

#136

N04

W8

DD

AD

WE

LL18

.07.

316

5719

MT

SA

LIN

ITY

CO

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OL

AS

SO

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RC

OL

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PR

R-0

4 #2

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8D

DB

BW

ELL

18.0

13.0

1657

25M

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ON

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OC

RR

CO

L *

SP

RR

-04

#836

N04

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.0>1

816

5726

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R-0

4 #1

036

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AA

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LL23

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2.4

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RR

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L *

SP

RR

-04

#436

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016

5723

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PR

R-0

4 #6

36N

04W

8A

DA

AW

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30.0

>29.

516

5728

MT

SA

LIN

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CO

NTR

OL

AS

SO

C R

RC

OL

* S

PR

R-0

4 #1

236

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BC

WE

LL38

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8.6

A -

1

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

S

ITE

NA

ME

TOWNSHIP

RANGE

SECTION

TRACT

ELEVATION

TYPE

CASING

TOTAL DEPTH (ft)



PUMPING RATE (gpm)

SU

NB

UR

ST

WE

LLS

1657

15M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

OC

RR

CO

L *

SP

RR

-04

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N04

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AD

CC

WE

LL38

.028

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5724

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SA

LIN

ITY

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NTR

OL

AS

SO

C R

RC

OL

* S

PR

R-0

4 #7

36N

04W

8A

CA

DW

ELL

38.0

>39

1657

20M

T S

ALI

NIT

Y C

ON

TRO

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SS

OC

RR

CO

L *

SP

RR

-04

#936

N04

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BA

AD

WE

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5727

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AS

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RC

OL

* S

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R-0

4 #1

136

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318

0720

MS

CA

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RR

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436

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WE

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4 #5

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04W

8A

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45.0

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CA

site

, U01

? 36

N04

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DD

C40

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site

, ??

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014

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rst #

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ntor

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ater

-Qua

lity

Dat

a

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IC

NU

MB

ER

S

ITE

NA

ME

TOWNSHIP

RANGE

SECTION

TRACT

ELEVATION

TYPE

CASING

TOTAL DEPTH (ft)



PUMPING RATE (gpm)

SU

NB

UR

ST

WE

LLS

8993

4G

LAC

IER

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IEW

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EB

ER

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AR

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.018

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MT

SA

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ITY

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NTR

OL

AS

SO

36N

05W

3C

BB

DW

ELL

28.0

1808

59M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

O36

N05

W3

CC

CD

WE

LL38

.068

28D

AV

ID R

EIE

RS

GA

RD

36N

05W

4A

BA

BD

DW

ELL

137.

068

28D

AV

ID R

EIE

RS

GA

RD

36N

05W

4A

BA

BD

DW

ELL

137.

016

9376

DA

VID

RE

IER

SG

AR

D36

N05

W4

AB

AB

DD

WE

LL14

4.0

1693

76D

AV

ID R

EIE

RS

GA

RD

36N

05W

4A

BA

BD

DW

ELL

144.

018

0860

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

36N

05W

4A

AA

AW

ELL

28.0

1808

61M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

O36

N05

W4

AD

BA

WE

LL28

.018

0862

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

36N

05W

4A

DC

DW

ELL

23.0

1808

63M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

O36

N05

W4

DA

DC

WE

LL48

.018

0864

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

36N

05W

9A

AB

AW

ELL

23.0

6833

MC

ALP

INE

ALL

EN

36N

05W

14A

CD

DD

DW

ELL

450.

012

.15.

068

34G

JER

TSO

N G

EO

RG

E *

.25

MI N

W G

RA

SS

Y L

AK

E36

N05

W14

BD

WE

LL10

5.0

7.8

8994

6G

JER

TSO

N G

EO

RG

E36

N05

W14

CA

WE

LL12

0.0

20.0

3.0

1498

22M

CA

LPIN

E A

LLE

N36

N05

W14

DB

BB

DB

WE

LL44

.0-1

.014

9822

MC

ALP

INE

ALL

EN

36N

05W

14D

BB

BD

BW

ELL

44.0

-1.0

1737

23M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

OC

*R

R-0

2 #4

36N

05W

19C

BA

DW

ELL

33.0

1737

24M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

OC

*R

R-0

2 #1

36N

05W

19C

BC

CW

ELL

18.0

1737

25M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

OC

*R

R-0

2 #2

36N

05W

19C

CA

CW

ELL

38.0

1737

26M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

OC

*R

R-0

2 #3

36N

05W

19C

DB

BW

ELL

58.0

8994

7P

ETE

RS

ON

RA

Y36

N05

W23

AC

CB

DA

WE

LL11

0.0

40.0

85.0

1373

40G

LAC

IER

CO

LON

Y36

N05

W23

AA

BD

BW

ELL

450.

00.

027

.015

0.0

8956

73TE

XA

S C

O36

N05

W23

PE

TWE

LL89

948

PE

TER

SO

N R

AY

& L

ON

36N

05W

24D

AD

CA

AW

ELL

8994

9P

ETE

RS

ON

RA

Y36

N05

W27

AD

WE

LL85

.040

.085

.089

953

MIC

HA

ELS

PH

ILLI

P36

N05

W32

AD

AD

CB

WE

LL14

.06.

02.

016

6151

GLA

CIE

R C

OLO

NY

36N

05W

35D

DC

BW

ELL

18.0

1661

52G

LAC

IER

CO

LON

Y36

N05

W35

DD

BD

WE

LL18

.016

6153

GLA

CIE

R C

OLO

NY

36N

05W

35D

DB

CW

ELL

23.0

A -

3

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

S

ITE

NA

ME

TOWNSHIP

RANGE

SECTION

TRACT

ELEVATION

TYPE

CASING

TOTAL DEPTH (ft)



PUMPING RATE (gpm)

SU

NB

UR

ST

WE

LLS

9038

1M

CA

LPIN

E A

LEX

37N

03W

26W

ELL

14.0

14.0

1.0

9038

2M

CA

LPIN

E A

LEX

37N

03W

26W

ELL

12.0

12.0

1.0

1807

03M

SC

A-M

CA

LPIN

E B

OB

*R

R-1

337

N04

W23

DA

DB

WE

LL28

.018

0849

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

37N

04W

23D

AB

BW

ELL

38.0

1808

50M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

O37

N04

W23

DA

CB

WE

LL38

.018

0851

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

37N

04W

23D

AC

CW

ELL

38.0

1808

48M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

O37

N04

W23

DA

AA

WE

LL48

.017

3278

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

37N

04W

28B

BB

DW

ELL

18.0

1732

79M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

O37

N04

W28

BC

CB

WE

LL18

.017

3277

MT

SA

LIN

ITY

CO

NTR

OL

AS

SO

37N

04W

28B

BA

AW

ELL

28.0

1732

76M

T S

ALI

NIT

Y C

ON

TRO

L A

SS

O37

N04

W29

DA

BB

WE

LL18

.020

4705

MS

CA

*B

UN

YA

K S

TAN

LEY

*TO

-47

*WE

LL 4

37N

04W

29D

CA

DW

ELL

23.0

2047

03M

SC

A *

BU

NY

AK

STA

NLE

Y *

TO-4

7 *W

ELL

137

N04

W29

CA

DB

WE

LL33

.020

4704

MS

CA

*B

UN

YA

K S

TAN

LEY

*TO

-47

*WE

LL 2

37N

04W

29C

DA

CW

ELL

33.0

9039

9B

UN

YA

K S

TAN

LEY

#1

37N

04W

29D

AB

CW

ELL

60.0

60.0

5.0

2047

06M

SC

A *

BU

NY

AK

STA

NLE

Y *

TO-4

7 *W

ELL

337

N04

W32

BA

AC

WE

LL18

.0

A -

4

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

1749

8217

4998

1749

9989

911

6820

8991

289

914

8991

517

3698

1736

9417

3692

1736

9317

3697

1736

9517

3701

1737

0017

3699

1736

9617

3704

1737

0517

3703

1737

0289

917

8991

889

919

1844

0216

5716

1657

1916

5725

1657

2616

5721

1657

2316

5728

COUNTY

DATE DRILLED

AQUIFER

SAMPLE ID

SAMPLING AGENCY

SAMPLE DATE

LABORATORY

WATER TEMPERATURE (°C)

FIELD pH

LAB Ph

FIELD CONDUCTIVITY (µmho/cm)

LAB CONDUCTIVITY (µmho/cm)

FIELD REDOX (mV)

DISSOLVED OXYGEN (mg/L)

IRON-RELATED BACTERIA (colony forming units/mL)

TOO

LE7/

23/1

998

TOO

LE7/

23/1

998

TOO

LE7/

23/1

998

TOO

LE1/

1/19

6121

1VR

GL

TOO

LE21

1VR

GL

1965

Q00

03U

SG

S10

/21/

1965

WQ

BTO

OLE

1/1/

1944

TOO

LE1/

1/19

33TO

OLE

1/1/

1933

TOO

LE5/

27/1

998

TOO

LE5/

20/1

998

TOO

LE5/

20/1

998

TOO

LE5/

20/1

998

TOO

LE5/

27/1

998

TOO

LE5/

27/1

998

TOO

LE5/

20/1

998

TOO

LE5/

27/1

998

TOO

LE5/

27/1

998

TOO

LE5/

27/1

998

TOO

LE5/

20/1

998

TOO

LE5/

20/1

998

TOO

LE5/

20/1

998

TOO

LE5/

20/1

998

TOO

LE1/

1/19

63TO

OLE

1/1/

1973

TOO

LE1/

1/19

60TO

OLE

7/18

/200

0TO

OLE

11/1

8/19

9711

2DR

FT19

98Q

0816

MB

MG

2/24

/199

8M

BM

G8.

0515

00TO

OLE

11/1

8/19

9711

2DR

FT19

98Q

0819

MB

MG

2/24

/199

8M

BM

G8.

0823

40TO

OLE

11/1

8/19

97TO

OLE

11/1

8/19

97TO

OLE

11/1

8/19

97TO

OLE

11/1

8/19

97TO

OLE

11/1

8/19

97

A -

5

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

1657

1516

5724

1657

2016

5727

1807

2016

5722

8992

017

3718

8992

118

7898

1501

5217

3721

1657

2917

3719

1657

3016

5717

1737

2016

5730

1657

2989

927

8992

868

2418

0855

1808

5418

0852

1808

5618

0853

8993

089

931

8993

289

933

COUNTY

DATE DRILLED

AQUIFER

SAMPLE ID

SAMPLING AGENCY

SAMPLE DATE

LABORATORY


FIELD pH

LAB Ph



FIELD REDOX (mV)



TOO

LE11

/18/

1997

112D

RFT

1998

Q08

15M

BM

G6/

25/1

998

MB

MG

7.92

4390

TOO

LE11

/18/

1997

TOO

LE11

/18/

1997

1998

Q08

20M

BM

G2/

24/1

998

MB

MG

8.09

5150

TOO

LE11

/18/

1997

TOO

LETO

OLE

11/1

8/19

97

TOO

LE1/

1/19

6121

1TM

DC

TOO

LE4/

27/1

998

211T

MD

C19

96Q

0178

MB

MG

8/2/

1995

MB

MG

117.

28.

211

5111

83TO

OLE

11/1

/195

921

1VR

GL

1996

Q01

79M

BM

G8/

2/19

95M

BM

G8.

1916

69TO

OLE

10/1

2/20

00TO

OLE

5/3/

1964

211V

RG

L19

96Q

0178

MB

MG

8/2/

1995

MB

MG

8.2

1183

TOO

LE11

/20/

1997

TOO

LE11

/18/

1997

TOO

LE11

/20/

1997

TOO

LE11

/18/

1997

112T

ILL

TOO

LE11

/18/

1997

112D

RFT

1998

Q08

17M

BM

G6/

25/1

998

MB

MG

839

80TO

OLE

11/1

9/19

97TO

OLE

11/1

8/19

9711

2TIL

LTO

OLE

11/1

8/19

97TO

OLE

1/1/

1919

211T

MD

CTO

OLE

1/1/

1940

211T

MD

C19

96Q

0175

MB

MG

8/2/

1995

MB

MG

8.37

1431

TOO

LE1/

1/19

2021

1VR

GL

1965

Q00

23U

SG

S10

/20/

1965

WQ

BTO

OLE

4/8/

1999

TOO

LE4/

8/19

99TO

OLE

4/8/

1999

TOO

LE4/

8/19

99TO

OLE

4/8/

1999

TOO

LE1/

1/19

61TO

OLE

1/1/

1987

TOO

LE1/

1/19

3821

1TM

DC

TOO

LE1/

1/19

8619

96Q

0008

MB

MG

6/30

/199

5M

BM

G8.

1814

20

A -

6

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

8993

468

2615

5871

1808

5718

0858

1808

5968

2868

2816

9376

1693

7618

0860

1808

6118

0862

1808

6318

0864

6833

6834

8994

614

9822

1498

2217

3723

1737

2417

3725

1737

2689

947

1373

4089

5673

8994

889

949

8995

316

6151

1661

5216

6153

COUNTY

DATE DRILLED

AQUIFER

SAMPLE ID

SAMPLING AGENCY

SAMPLE DATE

LABORATORY


FIELD pH

LAB Ph



FIELD REDOX (mV)



TOO

LE7/

1/19

43TO

OLE

211V

RG

L19

65Q

0004

US

GS

9/24

/196

5W

QB

TOO

LE21

1TM

DC

1997

Q00

37M

BM

G7/

12/1

996

MB

MG

8.2

851

GLA

CIE

R6/

8/19

99G

LAC

IER

6/8/

1999

GLA

CIE

R6/

8/19

99G

LAC

IER

211V

RG

L19

65Q

0022

US

GS

10/1

5/19

65W

QB

4000

GLA

CIE

R21

1VR

GL

2000

Q01

97M

BM

G8/

20/1

999

MB

MG

7.9

8080

GLA

CIE

R21

1TM

DC

1966

Q00

14M

BM

G7/

1/19

95M

BM

G9

7.37

7.93

5350

4540

GLA

CIE

R21

1TM

DC

1999

Q50

01P

RIV

7/1/

1995

EN

GY

7.3

1020

0G

LAC

IER

6/8/

1999

GLA

CIE

R6/

8/19

99G

LAC

IER

6/8/

1999

GLA

CIE

R6/

8/19

99G

LAC

IER

6/8/

1999

1/1/

1942

211V

RG

L21

1TM

DC

1/1/

1924

110A

LVM

GLA

CIE

R21

1TM

DC

1996

Q01

06M

BM

G7/

17/1

995

MB

MG

9.19

1341

GLA

CIE

R4/

27/1

998

GLA

CIE

R4/

27/1

998

GLA

CIE

R4/

27/1

998

GLA

CIE

R4/

27/1

998

1/1/

1946

211T

MD

C8/

5/19

9321

1VR

GL

217C

BN

K1/

1/19

2421

1TM

DC

GLA

CIE

R1/

1/19

61G

LAC

IER

1/1/

1934

1996

Q00

19M

BM

G7/

1/19

95M

BM

G7.

9355

0G

LAC

IER

10/2

4/19

96G

LAC

IER

10/2

4/19

96G

LAC

IER

10/2

4/19

96

A -

7

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

9038

190

382

1807

0318

0849

1808

5018

0851

1808

4817

3278

1732

7917

3277

1732

7620

4705

2047

0320

4704

9039

920

4706

COUNTY

DATE DRILLED

AQUIFER

SAMPLE ID

SAMPLING AGENCY

SAMPLE DATE

LABORATORY


FIELD pH

LAB Ph



FIELD REDOX (mV)



TOO

LE1/

1/19

39TO

OLE

1/1/

1923

TOO

LE4/

9/19

99TO

OLE

4/9/

1999

TOO

LE4/

9/19

99TO

OLE

4/9/

1999

TOO

LE4/

9/19

99TO

OLE

5/27

/199

8TO

OLE

5/27

/199

8TO

OLE

5/27

/199

8TO

OLE

5/27

/199

8TO

OLE

2/27

/200

3TO

OLE

2/27

/200

3TO

OLE

2/27

/200

3TO

OLE

1/1/

1939

1996

Q02

41M

BM

G8/

9/19

95M

BM

G7.

9622

10TO

OLE

2/27

/200

3

A -

8

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

1749

8217

4998

1749

9989

911

6820

8991

289

914

8991

517

3698

1736

9417

3692

1736

9317

3697

1736

9517

3701

1737

0017

3699

1736

9617

3704

1737

0517

3703

1737

0289

917

8991

889

919

1844

0216

5716

1657

1916

5725

1657

2616

5721

1657

2316

5728

SULFUR-REDUCING BACTERIA (colony forming units/mL)

EXTRACTABLE PETROLEUM HYDROCARBONS (mg/L)

Ca (mg/L)

Mg (mg/L)

Na (mg/L)

K (mg/L)

Fe (mg/L)

Mn (mg/L)

SiO2 (mg/L)

HCO3 (mg/L)

CO3 (mg/L)

SO4 (mg/L)

Cl (mg/L)

NO3 as N (mg/L)

F (mg/L)

Ag (µg/L)

Al (µg/L)

As (µg/L)

B (µg/L)

2442

50 K

1929

312

697

2.25

90.

1

164.

386

.366

.45.

54<.

005

0.06

113

.538

9.2

060

4.5

109.

6<.

5<1

.<3

0.<1

.<8

0.24

7.9

199.

982

.610

.8<.

005

0.00

213

.538

3.1

010

8429

.213

.3<.

5<1

.<3

0.1.

254

<80.

A -

9

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

1657

1516

5724

1657

2016

5727

1807

2016

5722

8992

017

3718

8992

118

7898

1501

5217

3721

1657

2917

3719

1657

3016

5717

1737

2016

5730

1657

2989

927

8992

868

2418

0855

1808

5418

0852

1808

5618

0853

8993

089

931

8993

289

933



Ca (mg/L)

Mg (mg/L)

Na (mg/L)

K (mg/L)

Fe (mg/L)

Mn (mg/L)

SiO2 (mg/L)

HCO3 (mg/L)

CO3 (mg/L)

SO4 (mg/L)

Cl (mg/L)

NO3 as N (mg/L)

F (mg/L)

Ag (µg/L)

Al (µg/L)

As (µg/L)

B (µg/L)

544.

624

5.4

607

17.8

<.00

50.

118

17.1

247

5.8

026

89.4

163.

910

7.9

3.78

<1.

<30.

18.5

<80.

488.

247

8.9

811.

217

.54

<.00

50.

062

12.3

0660

3.9

041

00.7

139

54.9

4.8

<1.

<30.

15.5

337.

4

76.9

42.8

139.

73.

2<0

.003

0.11

69.

651

0.77

025

06.

50.

150.

19<1

.<3

0.<1

.31

954

.440

.129

4.1

2.8

0.00

7<.

002

6.7

605.

120

450

110.

90.

22<1

.<3

0.<1

.42

2

76.9

42.8

139.

73.

2<.

003

0.11

69.

651

0.77

025

06.

50.

150.

19<1

.<3

0.<1

.31

9

546.

130

4.4

385.

820

.04

<.00

50.

116

.353

444.

10

2768

.620

99.

763.

53<1

.<3

0.4.

2<8

0.

53.7

33.7

238.

82.

30.

007

<.00

26.

954

5.34

14.4

300

81

0.3

<1.

<30.

<1.

406

6862

138

K1.

3634

20

392

162.

395

0.4

24.6

11.4

289.

12.

20.

083

0.05

17.

846

6.9

035

012

0.05

0.5

<1.

<30.

<1.

431

A -

10

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

8993

468

2615

5871

1808

5718

0858

1808

5968

2868

2816

9376

1693

7618

0860

1808

6118

0862

1808

6318

0864

6833

6834

8994

614

9822

1498

2217

3723

1737

2417

3725

1737

2689

947

1373

4089

5673

8994

889

949

8995

316

6151

1661

5216

6153



Ca (mg/L)

Mg (mg/L)

Na (mg/L)

K (mg/L)

Fe (mg/L)

Mn (mg/L)

SiO2 (mg/L)

HCO3 (mg/L)

CO3 (mg/L)

SO4 (mg/L)

Cl (mg/L)

NO3 as N (mg/L)

F (mg/L)

Ag (µg/L)

Al (µg/L)

As (µg/L)

B (µg/L)

3237

151

K5.

7242

70

190

80

10.8

6.9

188.

51

0.03

0.01

36.

946

0.7

081

4.1

<.05

P<1

.<1

.76

.9<1

.44

5

1444

1130

063

045

1950

330.

521.

330

019

819

1012

.30.

203

0.24

75.

4882

2.3

045

87.4

59.2

282

.55.

3<1

.<3

0.5.

4781

610

4.2

58.3

1200

5.5

0.75

80.

113

6.9

855.

50

2250

4027

.50.

8<1

.<3

0.2.

283

830

624

421

0011

.20.

2266

30

5200

144

237

0.94

60.

399

276.

20.

662

<.05

<.00

25.

843

5.9

51.2

250

16<.

051.

24<1

.<3

0.<1

.49

0

63.5

23.6

13.8

8.2

<.00

3<.

002

12.8

335.

50

27.5

3.5

0.75

0.13

<1.

<30.

<1.

<30.

A -

11

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

9038

190

382

1807

0318

0849

1808

5018

0851

1808

4817

3278

1732

7917

3277

1732

7620

4705

2047

0320

4704

9039

920

4706



Ca (mg/L)

Mg (mg/L)

Na (mg/L)

K (mg/L)

Fe (mg/L)

Mn (mg/L)

SiO2 (mg/L)

HCO3 (mg/L)

CO3 (mg/L)

SO4 (mg/L)

Cl (mg/L)

NO3 as N (mg/L)

F (mg/L)

Ag (µg/L)

Al (µg/L)

As (µg/L)

B (µg/L)

568

129

74.8

5.7

0.09

60.

006

22.6

344

014

5016

032

.50.

1<1

.<8

0.4.

7<8

0.

A -

12

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

1749

8217

4998

1749

9989

911

6820

8991

289

914

8991

517

3698

1736

9417

3692

1736

9317

3697

1736

9517

3701

1737

0017

3699

1736

9617

3704

1737

0517

3703

1737

0289

917

8991

889

919

1844

0216

5716

1657

1916

5725

1657

2616

5721

1657

2316

5728

Ba (µg/L)

Be (µg/L)

Br (µg/L)

Cd (µg/L)

Co (µg/L)

Cr (µg/L)

Cu (µg/L)

Li (µg/L)

Mo (µg/L)

Ni (µg/L)

Pb (µg/L)

Sb (µg/L)

Se (µg/L)

Sr (µg/L)

Ti (µg/L)

V (µg/L)

Zn (µg/L)

Zr (µg/L)

Tl (µg/L)

TOTAL DISSOLVED SOLIDS (mg/L)

U (µg/L)

PO4 (µg/L) P

HARDNESS (mg/L as CaCO3)

369.

7

36.9

<2.

<500

.<2

.<2

.26

.1<2

.<5

0.<1

0.<7

.<2

.2.

410

.4<1

0.6.

73.

49<5

.<5

.11

51.9

318

.3<2

.<5

00.

<2.

<2.

26.8

<2.

<50.

<10.

<7.

<2.

<2.

26.7

2344

<10.

6.76

2.1

<5.

1869

.92

A -

13

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

1657

1516

5724

1657

2016

5727

1807

2016

5722

8992

017

3718

8992

118

7898

1501

5217

3721

1657

2917

3719

1657

3016

5717

1737

2016

5730

1657

2989

927

8992

868

2418

0855

1808

5418

0852

1808

5618

0853

8993

089

931

8993

289

933

Ba (µg/L)

Be (µg/L)

Br (µg/L)

Cd (µg/L)

Co (µg/L)

Cr (µg/L)

Cu (µg/L)

Li (µg/L)

Mo (µg/L)

Ni (µg/L)

Pb (µg/L)

Sb (µg/L)

Se (µg/L)

Sr (µg/L)

Ti (µg/L)

V (µg/L)

Zn (µg/L)

Zr (µg/L)

Tl (µg/L)


U (µg/L)

PO4 (µg/L) P


11.5

<2.

<500

.<2

.<2

.31

.611

.8<5

0.<1

0.<7

.<2

.<2

.10

2633

81<1

0.8.

129

.2<5

.46

31.4

4

20.6

<2.

<500

.<2

.<2

.37

.514

.7<5

0.<1

0.<7

.<2

.<2

.85

0.5

7020

<10.

9.9

6.5

<5.

6405

.12

15.8

<2.

<50.

<2.

<2.

<2.

5.7

25<1

0.2.

93.

9<2

.<1

.25

75<1

0.<5

.14

.7<2

0.78

0.79

<0.1

368.

189.

9<2

.<5

0.<2

.<2

.<2

.7.

917

<10.

3.4

<2.

<2.

6.5

1837

<10.

<5.

26.4

<20.

1158

.4

15.8

<2.

<50.

<2.

<2.

<2.

5.7

25<1

0.2.

93.

9<2

.<1

.25

75<1

0.<5

.14

.7<2

0.78

0.8

31.3

<2.

<500

.<2

.<2

.28

5.6

<50.

<10.

<7.

<2.

<2.

244.

934

83<1

0.7.

48.

6<5

.44

82.4

7

12.9

<2.

<50.

<2.

<2.

<2.

6.3

7<1

0.2.

1<2

.<2

.6.

816

14<1

0.<5

.54

.9<2

0.92

7.8

848.

6

18.3

<2.

50<2

.<2

.2.

64.

525

<10.

<2.

<2.

<2.

<1.

1104

<10.

<5.

15.1

<20.

927.

8

A -

14

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

8993

468

2615

5871

1808

5718

0858

1808

5968

2868

2816

9376

1693

7618

0860

1808

6118

0862

1808

6318

0864

6833

6834

8994

614

9822

1498

2217

3723

1737

2417

3725

1737

2689

947

1373

4089

5673

8994

889

949

8995

316

6151

1661

5216

6153

Ba (µg/L)

Be (µg/L)

Br (µg/L)

Cd (µg/L)

Co (µg/L)

Cr (µg/L)

Cu (µg/L)

Li (µg/L)

Mo (µg/L)

Ni (µg/L)

Pb (µg/L)

Sb (µg/L)

Se (µg/L)

Sr (µg/L)

Ti (µg/L)

V (µg/L)

Zn (µg/L)

Zr (µg/L)

Tl (µg/L)


U (µg/L)

PO4 (µg/L) P


634.

180

<2.

<100

.<2

.<2

.13

.861

.327

<10.

2.3

2.2

<2.

<1.

380

<10.

<5.

195.

2<2

0.52

6.5

3528

.16

216.

069.

51<2

.<2

500

<2.

2.98

<2.

25.8

<500

13.5

26.2

<2.

<2.

233

8340

<100

<5.

8310

<50

<100

7574

.1<2

.515

64.0

75.

4<2

.50

0<2

.<2

.2.

612

.954

<10.

3.7

<2.

<2.

71.2

3608

<10.

<5.

97.2

<20.

4115

.61

<5.

500.

1585

68.8

217

68.3

9

15.9

<2.

<50.

<2.

<2.

<2.

3.8

21<1

0.<2

.<2

.<2

.2.

586

<10.

<5.

3.6

<20.

817.

18

360.

9<2

.<5

0.<2

.<2

.<2

.34

.912

<10.

<2.

<2.

<2.

1.2

204

<10.

<5.

75.5

<20.

319.

16

A -

15

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

9038

190

382

1807

0318

0849

1808

5018

0851

1808

4817

3278

1732

7917

3277

1732

7620

4705

2047

0320

4704

9039

920

4706

Ba (µg/L)

Be (µg/L)

Br (µg/L)

Cd (µg/L)

Co (µg/L)

Cr (µg/L)

Cu (µg/L)

Li (µg/L)

Mo (µg/L)

Ni (µg/L)

Pb (µg/L)

Sb (µg/L)

Se (µg/L)

Sr (µg/L)

Ti (µg/L)

V (µg/L)

Zn (µg/L)

Zr (µg/L)

Tl (µg/L)


U (µg/L)

PO4 (µg/L) P


74.2

N/A

.10

<2.

<2.

3.2

40<1

0.16

.3<2

.<2

.19

2.3

1279

<10.

<5.

2134

<20.

2614

.4

A -

16

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

1749

8217

4998

1749

9989

911

6820

8991

289

914

8991

517

3698

1736

9417

3692

1736

9317

3697

1736

9517

3701

1737

0017

3699

1736

9617

3704

1737

0517

3703

1737

0289

917

8991

889

919

1844

0216

5716

1657

1916

5725

1657

2616

5721

1657

2316

5728

ALKALINITY (mg/L as CaCO3)

RYZNAR STABILITY INDEX

SODIUM ADSORPTION RATIO

LANGLIER SATURATION INDEX

A -

17

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

1657

1516

5724

1657

2016

5727

1807

2016

5722

8992

017

3718

8992

118

7898

1501

5217

3721

1657

2917

3719

1657

3016

5717

1737

2016

5730

1657

2989

927

8992

868

2418

0855

1808

5418

0852

1808

5618

0853

8993

089

931

8993

289

933





418.

925.

784

3.17

1.20

8

A -

18

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

8993

468

2615

5871

1808

5718

0858

1808

5968

2868

2816

9376

1693

7618

0860

1808

6118

0862

1808

6318

0864

6833

6834

8994

614

9822

1498

2217

3723

1737

2417

3725

1737

2689

947

1373

4089

5673

8994

889

949

8995

316

6151

1661

5216

6153





591.

7633

.44

674.

434.

488

21.0

11.

706

701.

665.

342

23.3

51.

294

543.

775.

285

21.7

31.

021

A -

19

App

endi

x A

Inve

ntor

y an

d W

ater

-Qua

lity

Dat

a

GW

IC

NU

MB

ER

SU

NB

UR

ST

W

9038

190

382

1807

0318

0849

1808

5018

0851

1808

4817

3278

1732

7917

3277

1732

7620

4705

2047

0320

4704

9039

920

4706





A -

20

Appendix B

Downhole Camera Logs

Appendix BDownhole Camera Logs

Sunburst #108/10/2004 08:20Camera angled about 45°, depth correctLocation, UTM m., NAD 83: 5414776 420424Location, T R S tract: 36N04W14ADCBCCompletion Date:Total Depth of Well (ft BTC): 138 , 155RScreened Interval: open holeCasing diameter & type: 12" steelStick Up (ft): 0Bottom of casing: 74.5 , 80RDepth to Water (ft BGS): 93.43

Depth (ft)From To

0 5 casing clean5 10 casing clean

10 15 casing clean15 17 casing clean

17 joint, threaded coupler17 25 casing clean25 30 casing clean, rust30 35 casing clean, rust35 37.5 casing clean, rust

37.5 joint37.5 45 casing clean, rust

45 50 casing clean, rust50 55 casing clean, rust55 58 casing clean, rust

58 joint, encrustation from seepage down one side of casing below joint58 65 scale on one side of casing65 70 scale70 74.5 scale

74.5 bottom of casing74.5 76 washouts

76 80 smooth bore80 85 smooth bore85 90 smooth bore90 93.5 smooth bore

93.5 water, floating debris93.5 ~98-100 smooth bore, suspended sediment

~98-100 105 rough bore, suspended sediment105 110 rough bore, suspended sediment110 115 rough bore, suspended sediment115 116.7 rough bore, suspended sediment, iron stain

116.7 120 rough bore, washouts120 125 very rough bore, washouts125 130 very rough bore, washouts130 131 very rough bore, washouts131 133 major washout133 135 smooth bore135 136 smooth bore136 138 rough bore

138 bottom (elev = 3930)

B - 1


Sunburst #508/31/04, 14:00Camera vertical, depth correct from top casingLocation, UTM m., NAD 83: 5414549 420736Location, T R S tract: 36N04W14ADDADBCompletion Date:Total Depth of Well (ft BTC): 145.7Screened Interval: open holeCasing diameter & type: 12" steelStick Up (ft): 0Bottom of casing:Depth to Water (ft BGS): 117.02

Depth (ft)From To

0 1 casing, clean, smooth1 welded joint

1 20 casing, clean, smooth20 threaded coupler

20 41 casing, clean, smooth41 threaded coupler

41 61.4 casing, clean, smooth61.4 threaded coupler

61.4 81.8 casing, clean, smooth81.8 threaded coupler

81.8 101.7 casing, clean, smooth101.7 bottom of casing

101.7 105 smooth bore105 117 smooth bore, slight roughness associated with bedding

117 water table117 130 smooth bore, slight roughness associated with bedding130 135 rough bore, washout along vertical joint, massive sandstone135 145.9 rough bore, large washouts along vertical joints

145.9 bottom, rubble

B - 2


Sunburst #608/10/2004, 12:10Camera vertical, depth correctLocation, UTM m., NAD 83: 5414378 420384Location, T R S tract: 36N04W14ADCBCCompletion Date:Total Depth of Well (ft BTC):Screened Interval: open holeCasing diameter & type: 12" steelStick Up (ft): 0Bottom of casing: 74.5Depth to Water (ft BGS): 124.75

Depth (ft)From To

0 2 casing clean2 joint, threaded coupler, casing clean

2 23 casing clean, image dark23 joint, casing clean, image dark

23 46 casing clean, image dark46 joint, casing clean, image dark

46 68.5 casing clean, image dark68.5 joint, casing clean, image dark

68.5 89 casing clean, image dark89 joint, casing clean, image dark

89 111 casing clean, image dark111 bottom of casing, image dark

111 115 smooth bore, image dark115 123 smooth bore, slight roughness along stratification, image dark123 125 smooth bore, color change, darker, image dark, top of boards (2 - 2x4s?)125 125.5 wood, 2-2x4s?125 124.75 alongside boards, smooth bore

124.75 water surface128.5 camera stopped, wood appears to be wedged in place, not floating, smooth bore

B - 3


Sunburst #708/31/04, 16:10Camera vertical, depth correct from top casingLocation, UTM m., NAD 83: 5415101 420750Location, T R S tract: 36N04W14AAAADCompletion Date:Total Depth of Well (ft BTC): 102.7 , 174RScreened Interval: open holeCasing diameter & type: 12" steelStick Up (ft): 0Bottom of casing: , 77RDepth to Water (ft BGS): 83

Depth (ft)From To

0 5 casing clean, smooth5 10 casing clean, smooth, rust increasing with depth

10 13 rust scale build up on casing13 threaded coupler

13 35.5 rust scale build up on casing35.5 threaded coupler

35.5 55.3 rust scale build up on casing, condensation55.3 threaded coupler

55.3 77.3 rust scale build up on casing, condensation77.3 bottom of casing

77.3 83 smooth borehole, minor washouts along bedding83 water table

83 90 smooth borehole, minor washouts along bedding90 102.7 smooth borehole, washouts along bedding

102.7 bottom, rubble

B - 4


Sunburst #1001/26/2005, 10:30Camera vertical with mirror, depth correct from top casingLocation, UTM m., NAD 83: 5414610 412058Location, T R S tract: 36N05W13ACCCCCompletion Date:Total Depth of Well (ft BTC):Screened Interval: open holeCasing diameter & type: 12" steelStick Up (ft):Bottom of casing:Depth to Water (ft BGS): 115.85

Depth (ft)From To

0 17 12" steel, rust, no pitting or encrustation17 threaded coupler





96 112.3 12" steel, rust, no encrustation, some pitting112.3 Water surface

112.3 225 No visibility225 230 12" steel, appears smooth230 245 No visibility245 250 12" steel, appears smooth250 258 No visibility258 262 12" steel, appears smooth

262 Bottom casing262 265 No visibility265 270 Minor washouts270 305 No visibility

305 Top of 1/4" pipe305 310 Smooth bore310 315 No visibility315 320 2 pieces of 1/4" pipe320 340 No visibility340 368.5 Smooth bore

368.5 Camera hung up

B - 5


Sunburst #1101/26/2005 13:00Camera vertical w/ mirror, depth correct from top casingLocation, UTM m., NAD 83: 5415394 412102.9Location, T R S tract: 36N05W12DCCCACompletion Date: 1943Total Depth of Well (ft BTC): , 407RScreened Interval: open holeCasing diameter & type: 12" steelStick Up (ft): 0Bottom of casing: 201.1 , 237RDepth to Water (ft BGS): 69.15

Depth (ft)From To

0 22 light rust scale on casing22 69 encrustation & pitting

69 water surface69 110 poor visibility

110 201.1 smooth, relatively clean casing201.1 bottom casing

201.1 203 shale? squeezed in, camera stopped, centralizers hung up on shale

B - 6


Sunburst #1209/01/04 14:50Camera vertical, depth correct from top casingLocation, UTM m., NAD 83: 5417048 412088.9Location, T R S tract: 36N05W12ACCCACompletion Date:Total Depth of Well (ft BTC): 469Screened Interval: open holeCasing diameter & type: 12" steelStick Up (ft): 1.8Bottom of casing: 360Depth to Water (ft BGS): 208.4

Depth (ft)From To

0 21.7 light rust on casing21.7 threaded coupler

21.7 41.5 light rust on casing41.5 threaded coupler

41.5 61 light rust scale on casing61 threaded coupler

61 80.7 light rust scale on casing, corrosion pit & precipitate @ 72.5'80.7 threaded coupler

80.7 100.9 light rust scale on casing100.9 threaded coupler, may be leaking

100.9 116.5 light rust scale on casing116.5 threaded coupler

116.5 143 light rust scale on casing, water entering through corrosion pits starting at 132'143 threaded coupler

143 161 light rust scale on casing, water entering through corrosion pits to about 160'161 threaded coupler

161 179 light rust scale on casing, corrosion pits & precipitate 173-194'179 threaded coupler

179 198 rust scale on casing198 threaded coupler

198 208.4 rust scale on casing208.4 water surface

208.4 218 light rust scale on casing218 threaded coupler

218 239 light rust scale on casing, visibility decreasing239 threaded coupler

239 255 light rust scale on casing, poor to fair visibility255 threaded coupler



293 310.4 light rust scale on casing, poor to fair visibility310.4 threaded coupler??

310.4 323 relatively smooth casing323 333 scale? build-up on casing increasing333 341 no visiblity except floating particulates341 352 heavy scale build-up

352 threaded coupler

B - 7


352 358 relatively smooth casing358 coupler or joint ??

358 360 relatively smooth casing360 bottom casing??, poor visibility

360 361 washout361 375 smooth borehole375 383 minor washouts383 387 smooth borehole387 394 no visiblity except floating particulates394 409 smooth borehole, poor visibility409 421 smooth borehole, fair visibility421 423 smooth borehole, very poor visibility423 427 no visiblity except floating particulates427 431 smooth borehole, poor visibility431 443 smooth borehole, fair visibility443 448 smooth borehole, poor visibility448 459 smooth borehole, fair visibility459 462 rough borehole, washouts on bedding, fair to good visibility462 468 smooth borehole, bedding visible, fair to good visibility468 469 washout

469 bottom

B - 8


Sunburst #1308/31/04, 18:15Camera vertical, depth correct from top casingLocation, UTM m., NAD 83: 5415303 412800.9Location, T R S tract: 36N05W13AAAAACompletion Date: 1945Total Depth of Well (ft BTC): 480+ , 520RScreened Interval: open holeCasing diameter & type: 8" inside 12" steelStick Up (ft): 0Bottom of casing: , 283RDepth to Water (ft BGS): 219.4

Depth (ft)From To

0 12 smooth casing, light rust, top of 1/4" pipe @ 5.8'12 threaded coupler

12 28 thin rust scale on casing28 threaded coupler

28 42.5 thin rust scale on casing42.5 threaded coupler

42.5 57 thin rust scale on casing57 threaded coupler

57 69.8 thin rust scale on casing69.8 threaded coupler

69.8 85.3 thin rust scale on casing85.3 threaded coupler










217.4 219.4 thin rust scale on casing219.4 water surface, water appears cloudy

219.4 233 extremely poor visibility, particulates, could not lower camera below 233'

B - 9


Sunburst Well #1505/28/2002, 16:00camera angled about 45°, add 3.5' to all depths to account for length of cameraLocation, UTM m., NAD 83: 5417027 412107Location, T R S tract: 36N 05W 01 DCCCDBCompletion Date: 1945Total Depth of Well (ft BTC): 456.5 , 475RScreened Interval: open holeCasing diameter & type: 12" steelStick Up (ft):Bottom of casing: 309.5 , 315RDepth to Water (ft BGS): 158.2

CorrectedDepth (ft Depth (ft)

8 11.5 Pipe joint20 23.5 Casing wet, snow melt

28? 31.5? Pipe joint48 41.5 Pipe joint65 68.5 Pipe joint85 88.5 Pipe joint, noticeably wetter

105.5 109 Pipe joint123 126.5 Pipe joint138 141.5 Pipe joint, water running down casing

Bacterial growth, running water at several locations149 152.5 Water entering well150 153.5 Water entering well

154.7 158.2 Water table160+/- 163.5+/- Bacterial growth

173 176.5 Pipe joint179 182.5 Hole in casing?209 212.5 Pipe joint

227.5 231 Pipe joint232.5 236 Bacterial growth246.5 250 Pipe joint

265 268.5 Pipe jointHoles in casing at several locations

286 289.5 Pipe jointBacterial growth at several locations

306 309.5 Bottom of casingAbout 1-2 feet of jointed sediments below casing

309 312.5 Smooth borehole310 313.5 Joints and bedding planes311 314.5 Smooth borehole320 323.5 Smooth borehole323 326.5 Jointing to about 324 ft331 334.5 Smooth borehole

Visible jointing, but no caving or sloughing341 344.5 Smooth borehole

350.5 354 Enlarged borehole352 355.5 Smooth borehole, sandstone360 363.5 Enlarged borehole374 377.5 Minor enlargement along bedding planes386 389.5 Minor enlargement along bedding planes

B - 10


395 398.5 Smooth borehole, sandstone400 403.5 Shale interbeds

Large voids, more shaley405 408.5 Shale

Sandstone414 417.5 Shale

Alternating sandstone and shale430 433.5 Sandstone

Shale435 438.5 Sandstone445 448.5 Alternating sandstone and shale450 453.5 Alternating sandstone and shale453 456.5 Bottom, loose silt and clay

B - 11


Sunburst #1609/01/04, 12:05Camera angled 45°, depth correct from top casingLocation, UTM m., NAD 83: 5417814 412118Location, T R S tract: 36N05W01ACCCDCompletion Date:Total Depth of Well (ft BTC): 416 , 525RScreened Interval: open holeCasing diameter & type: 12" steelStick Up (ft):Bottom of casing:Depth to Water (ft BGS): 184.6

Depth (ft)From To

0 13.1 clean casing, light rust13.1 threaded coupler

13.1 33 rust scale on casing, light33 threaded coupler

33 53.3 rust scale on casing, light53.3 threaded coupler





124.9 138.4 rust scale on casing, corrosion pits, water entering well starting ~ 136'138.4 threaded coupler

138.4 159.6 rust scale on casing, corrosion pits, water entering well159.6 threaded coupler

159.6 179.6 rust scale on casing, corrosion pits, water running down side of well179.6 threaded coupler

179.6 184.6 rust scale on casing, corrosion pits, water running down side of well184.6 water surface

184.6 199 rust scale on casing, corrosion pits, poor visibility, floating particulates199 threaded coupler

199 217.8 rust scale on casing, corrosion pits, poor visibility, floating particulates, barbed wire @ 206'217.8 threaded coupler

217.8 236.3 rust scale on casing, corrosion pits, poor visibility, floating particulates236.3 threaded coupler

236.3 250 rust scale on casing, corrosion pits, poor visibility, floating particulates250 416 lose visibility at about 250'

416 bottom, rubble

B - 12


08/31/04, 15:10Camera @ 45°, depth correct from top casingLocation, UTM m., NAD 83: 5414844 420749Location, T R S tract: 36N04W14AADDDCompletion Date:Total Depth of Well (ft BTC): , 171RScreened Interval: open holeCasing diameter & type: 12" steelStick Up (ft): 0Bottom of casing: , 78RDepth to Water (ft BGS): 104.3

Depth (ft)From To

0 10 casing clean, smooth10 15 casing clean, smooth, rusty15 17.7 casing clean, smooth, rust scale build up

17.7 threaded coupler17.7 20 casing clean, smooth, rust scale build up

20 30 thick rust scale build up, top pump shaft @ 30.7', shaft and bushing in 2", unthreaded30 39.5 rust on casing, appears damp

39.5 threaded coupler39.5 60 rust on casing, appears damp

60 61.1 casing wet, water appears to be entering well through corrosion pits61.1 threaded coupler

61.1 78.5 rust on casing, wet78.5 bottom of casing

78.5 85 smooth bore, water running down sides85 95 smooth bore, water running down sides, minor washouts at bedding95 104.3 smooth bore, water running down sides, minor washouts at bedding, rust build up on 2"

104.3 water table, floaters104.3 106 smooth bore, scum on sides

106 120 smooth bore, scum on sides, washouts at bedding119 top of 1/4" pipe

120 131.3 smooth bore, scum on sides, washouts at bedding131.3 top of pump or discharge pipe, covered with scum131.9 camera can't be lowered further

B - 13

Documents

SUNBURST WATER-SUPPLY RENOVATION WATER-SUPPLY RENOVATION ... the Texas Oil Company drilled as 17 wells to provide water for their ... 3 Classification Soft-water well field