Powder/Tongue River Basin Water Plan
Technical Memoranda

Appendix C

Data Summary of Hydrogeology, Hydrologic Properties and
Well Specific Capacities of Selected Aquifer Systems,
Powder/Tounge River Basin Plan Area

Appendix C.1
Madison Aquifer System

Figure C.1.1. Depth to the Madison Limestone and Equivalent Rocks
in the Powder River Structural Basin and Adjacent Areas.

Figure C.1.2. Thickness of Madison Limestone in Wyoming and its Regional Limits

Figure C.1.3. Potentiometric Surface in the Madison Aquifer
(after Swenson and others, 1976).

Table C.1.1 Reported Transmissivities and Storage Coefficients for the Madison Aquifer in the Powder River Structural Basin, Wyoming

Area	Transmissivity (gpd/ft)	Storage Coefficient	Source	Method Used
USGS Test Well (57/65-15)	3,000 - 21,000	-	Blankennagel et al. 1977	Drill stem tests
Gillette Well Field (51/66-6)
Well CR-4	150,000	2 x 10-4	Wyoming Water Planning Program, 1977	Single well pump test
Well CR-4	150,000-300,000	-	Montgomery, 1979	2-well pump test and other data
Well City #1	~10,000	-	Montgomery, 1979	2-well pump test and other data
Newcastle Area	5,000 - 15,000	10-4	Wyo. St. Eng., 1974	Estimate
	58,000	9 x 10-5	Woodward-Clyde, 1980	Flow and recovery, 2 wells
Well # 45/61-28	29,920	-	Swenson et al., 1976	Specific capacity based estimate
Well # 45/61-20	11,000	-	Woodward-Clyde, 1980	Constant discharge test
Near Hartville Hills in S.E.	1,000-3,000	1 x 10-4 - 5 x 10-5	Wyo. St. Eng., 1974	-
ETSI Wellfield (Niobrara Co.)	1,000-3,000	5 x 10-5	Stockdale, 1974, also Anderson and Kelly, 1974	Hantush method for leaky aquifers
	4,900-7,320 2,420-3,400	4.5 x 10-5 - 7.8 x 10-5 7.7 x 10-4 - 9.2 x 10-5	Rahn, 1975 Rahn, 1975	Jacob Method Theis curve, no leakage
Near Douglas, in South	500-1,000	10-4 (est)	Wyo. St. Eng., 1974	-
Midwest Area	8,400 6,462-16,156	- -	Konikow, 1976 Konikow, 1976	Flow net analysis Steady state model calibration
Near Bighorn Mts. in N.W.	8,000-89,000	4.3 x 10-4 - 3.2 x 10-4	Wyo. St. Eng., 1974	-
Entire Basin Average	6,460-25,850 6,460-23,260*	- -	Konikow, 1976 Konikow, 1976	Recharge based steady state Model calibration Potentiometric based steady state model calibration

* Value temperature dependent.
Table Source: Feathers, Libra, Stephenson and Eisen, 1981

Table C.1.2 Calculated Specific Capacities (Yield Per Unit Drawdown) of Madison Aquifer Wells,
Powder River Structural Basin, Powder/Tongue River Basin Plan Area, Wyoming

Well # (T/R-Sec. ¼, ¼)	Date	Test Duration (hrs)	Drawdown (ft)	Yield (gpm)	Specific Capacity (gpm/ft)	Data Source	Remarks
JOHNSON COUNTY
41/78-1 BC	1/22/67	8	173?*	788	4.6	1
	7/-/72	?	208*	700	3.4	3
41/81-9 CDB	-/-/62	?	116*	900 E	7.8	3
41/84-19 AB	-/-/63	3	60	15	0.25	2
42/80-30 BDB	6/-/62	?	716*	900	1.3	3
42/81-25 CBD	5/-/63	?	520*	1100	2.1	3
43/80-34 DAD	-/-/63	24	647*	525	0.81	1, 3	Flow through 4. ID pipe
	6/-/73	?	139	170	1.2	2
		?	219	315	1.4	2
49/83-27 DBC	3/1/74?	?	8.3*	5	0.60	1
NATRONA COUNTY
39/78-26 CDC	7/-/73	?	231	150	0.65	3
39/79-11 AAD	6/29/62	24	843*	4746	5.6	1, 3
+40/79-2 AD	4/-/71	?	286	297	1.0	2
	7/-/71	?	292	320	1.1	2
	10/-/71	?	298	359	1.2	2
	1/-/72	?	274	336	1.2	2
40/79-23 DDB	4/-/71	?	133	726	5.5	2
	7/-/71	?	100	706	7.1	2
	10/-/71	?	122	684	5.6	2
	1/-/72	?	112	491	4.4	2
40/79-26 CAA	-/-/71	?	869*	9000 E	10.4	3
	4/-/71	?	182	5599	31.	2
	7/-/71	?	202	5110	25.	2
	10/-/71	?	163	4580	28.	2
	1/-/72	?	152	4121	21.	2
40/79-31 BCA	2/25/62	?	693	437	0.63	1
	-/-/62	?	693	430	0.62	3
40/79-35 ACB	-/-/61	?	35	1663	47.5	1, 3	-Tests in 4/71, 7/71,
		?	176	3996	22.7	1, 3	10/71, 1/72 respectively
		?	296	5858	19.8	1, 3	per source #2
		?	418	7015	16.8	1, 3
40/79-35 CCC	4/-/71	?	23	593	26.	2
	7/-/71	?	25	650	26.	2
	10/-/71	?	17	557	34.	2
	1/-/72	?	11	482	44.	2

Table Source:
Feathers, K.R., Libra, R., Stephenson and Eisen, C. 1981. Occurrence and characteristics of ground water in the Powder River Basin, Wyoming. Laramie, WY: University of Wyoming, Water Resources Research Institute, pp. 63-66.

Table C.1.3 Hydrologic Properties of Permo-Pennsylvanian Rocks of The Madison Aquifer System,
Powder River Structural Basin, Powder/Tongue River Basin Plan Area, Wyoming
(Determined from Oil Field Data)

Field	Approximate Location (T/R)	Pay Thickness (ft)	Porosity (%)	Permeability* (md)	Calculated. Transmissivity (gpd/ft)	Data Source
Upper Minnelusa Fm. ("Converse" sands):
C-H Field	52/70	100	---	230	419	4
Hamm	51/69	35	19.7	239	152	5
Kuehne Ranch	51/69-70	---	14.7	64.1	---	5
		---	13.8	32.1	---	5
		18	15.8	100	33	5
Mellott Ranch	52/68	25	16	---	---	5
Pleasant Valley Ranch	51/69	---	11.1-14	29	---	5
Roehrs	53/70	---	17.3	115	---	5
Stewart	50-51/69	---	5.8-14.8	10.7-134	---	5
Whisler	50-51/70	12.1	18.6	242.2	---	5
Tensleep Ss.:
Meadow Creek	41/78	17	11	14	4	5
North Fork	44/81-82	90	1.9-24.3	54-1140	88-1867	1
		90	13	116	190	1
Notches	37/85	20	17-20	100-400	36-146	3
Sussex-Meadow Creek Area	41-43/78-80	60	11	14	15	1
Sussex	42/78	103	0.4-18.6	0.01-271	0.02-508	5
Tiesdale East	41/81	30	20	700	382	3

Notes:
*Md x 18.2 x 10^-3 = gpd/ft², assuming fluid is water at 60ºF.
.Assuming fluid is water at 60ºF and pay thickness equals aquifer thickness.

Date Sources:

1 - Wyoming Geological Association, 1958 2 - Wyoming Geological Association, 1963 3 - Wyoming Geological Association, 1957 (supplemented, 1961) 4 - Wyoming State Oil and Gas Commission files 5 - Collentine and others, 1981

Table Source:
Feathers, K.R., Libra, R., Stephenson and Eisen, C. 1981. Occurrence and characteristics of ground water in the Powder River Basin, Wyoming. Laramie, WY: University of Wyoming, Water Resources Research Institute, pp. 70-72.

Appendix C.2
Dakota Aquifer System

Figure C.2.1 Potentiometric Surface in the Dakota Aquifer System (from Lobmeyer, 1980).

Table C.2.1 Hydrologic Properties of Lower Cretaceous Rocks of The Dakota Aquifer System,
Powder River Structural Basin, Powder/Tongue River Basin Plan Area, Wyoming
(Determined from Oil Field Data)

Field	Approximate Location (T/R)	Pay Thickness (ft)	Porosity (%)	Permeability* (md)	Calculated. Transmissivity (gpd/ft)	Data Source
Newcastle/Muddy Ss.:
Bertha	54/69	4	23	334	24	1
Chan	56/73	---	14.2	44	---	7
Collums	55/73	110a	19.3	62.6	125	7
Fence Creek	57-58/76	10	16	70	13	7
Gas Draw	53-55/72-73	8	20.2	188	27	7
Hunter Ranch	57/72	---	19.5	47	---	7
Kitty	50/73	22	16	345	138	3
Lazy "B"	49/73-74	100-300a	13.6	14.1	26-77	7
L-X Bar Ranch	56/75	15.1	16.5	---	---	7
O'Conner	52/69	7	15	58	7	1
Oedekoven	55/73-74	---	17.2	---	---	7
Recluse	56-57/74	0-40	<27	<1200	<875	3
	57/74-75	20	20	400	146	2
	56-57/74-75	---	16.8	87	---	7
Springen Ranch	50-51/71	---	2-15	2.4-588	---	7
Ute	57-58/72	---	16.8-21.3	---	---	7
Whitetail	56/72	---	22.4	148	---	7
		---	16.5	---	---	7
Fall River/Dakota Ss.:
Burke Ranch	37/78	12	15	44	10	1
		20	13	40	15	5
		12	14	29	6	7
Sage Spring Creek	36-37/77	35-40	13	22-406	<300	5
Lakota/Cloverly Fm.:
Meadow Creek	41/78	20	15	40-200	15-73	7
		15	11	14	4	7
Sherwood	40/77	15	16	<25	<7	5
Sussex	42/78-79	25	15.8	---	---	7
Sussex-Meadow Creek Area	78-80	20	15	40-200	15-73	5
Tisdale North	41/81	65	18	195	231	5

Notes:
*Md x 18.2 x 10-3 = gpd/ft2, assuming fluid is water at 60ºF.
.Assuming fluid is water at 60ºF and pay thickness equals aquifer thickness.
^aReported as gross formation thickness rather than net pay.

Date Sources:

1 - Wyoming Geological Association, 1957 (supplemented, 1961) 2 - Wyoming Geological Association, 1976 3 - Wyoming Geological Association, 1968 4 - Wyoming Geological Association, 1963 5 - Wyoming Geological Association, 1958 6 - Wyoming Geological Association, 1954 7 - Collentine and others, 1981

Table Source:
Feathers, K.R., Libra, R., Stephenson and Eisen, C. 1981. Occurrence and characteristics of ground water in the Powder River Basin, Wyoming. Laramie, WY: University of Wyoming, Water Resources Research Institute, pp. 89-92.

Table C.2.2 Reported Specific Capacities (Yield Per Unit Drawdown) of Wells in The Dakota Aquifer System,
Powder River Structural Basin, Powder/Tongue River Basin Plan Area, Wyoming

Well Location (T/R-Sec. ¼, ¼)	Geologic Formation(s)	Test Date	Test Duration (hrs)	Drawdown (ft)	Discharge (gpm)	Specific Capacity (gpm/ft)	Data Source	Remarks
JOHNSON COUNTY
41/80-30 DB	Kcv	10/-/60	---	125	2	0.02	2
41/81-25 DA	Kcv	?	---	120	18	0.15	2

Abbreviations:

Kik = Inyan Kara Group Kfr = Fall River Formation Klk = Lakota Formation Kcv = Cloverly Formation E = Estimated

Date Sources:

1 - Whitcomb and Morris,1964 2 - U.S. Department of the Interior, 1974 3 - Whitcomb, 1965 4 - Wyoming State Engineer's Office permit files 5 - Whitcomb, 1960

Table Source:

Feathers, K.R., Libra, R., Stephenson and Eisen, C. 1981. Occurrence and characteristics of ground water in the Powder River Basin, Wyoming. Laramie, WY: University of Wyoming, Water Resources Research Institute, pp. 86-87.

Appendix C.3
Fort Hills/Lance Aquifer System

Figure C.3.1. Contours on Water Levels in Wells Finished in the Fox Hills Sandstone
Lance Formation, and Lower Part of the Fort Union Formation in the Gillette Area, Wyoming
(from Northern Great Plains Resource Program, 1974).

Table C.3.1 Reported Transmissivities And Permeabilities for Wells in the Fox Hills/Lance Aquifer System,
Powder River Structural Basin, Powder/Tongue River Basin Plan Area, Wyoming

Well Location (T/R-Sec. ¼, ¼)	Geologic Formation(s)	Test Date	Test Duration (hrs)	Saturated Aquifer Thickness (ft)	Transmissivity (gpd/ft)	Calculated* Permeability (gpd/ft2)	Data Source/Remarks
NATRONA COUNTY
40/78-11 ACB	Fox Hills & Lance	9/7/65	8	---	76	---	Crist & Lowry, 1972
-11 DBA	do	10/13/65	8	---	166	---	Crist & Lowry, 1972
-15 ABB	Fox Hills	/53	7	47	1600	34	Babcock & Morris, 1953; Crist & Lowry, 1972. Theis recovery method.

*Calculated by dividing transmissivity by the saturated aquifer thickness.

Table Source:

Feathers, K.R., Libra, R., Stephenson and Eisen, C. 1981. Occurrence and characteristics of ground water in the Powder River Basin, Wyoming. Laramie, WY: University of Wyoming, Water Resources Research Institute, p. 105.

Table C.3.2 Reported Specific Capacities (Yield Per Unit Drawdown) of Wells in The Dakota Aquifer System,
Powder River Structural Basin, Powder/Tongue River Basin Plan Area, Wyoming

Well Location (T/R-Sec. ¼, ¼)	Geologic Formation(s)	Test Date	Test Duration (hrs)	Drawdown (ft)	Discharge (gpm)	Specific Capacity (gpm/ft)	Data Source	Remarks
CAMPBELL COUNTY
52/70-2 DC	Kfh			345	1688	4.9	3
JOHNSON COUNTY
45/79-20 BD	K1	3/-/69		1008	124	0.12	3
46/82-22 BB	K1	1/5/61		35	7	0.20	5
48/82-9 AD	K1	9/-/56		15	10	0.67	5
-10 CB	K1	11/13/59		54	10	0.19	5
49/82-20 BA	K1	9/28/60		48	15	0.31	5
NATRONA COUNTY
40/78-11 ABC	Kfh,K1	9/9/65	8	---	25	0.03	6	6 hour step testing
-11 AC	Kfh	6/-/63	---	249	22	0.09	3
-11 DBA	Kfh,K1	10/13/65	8	---	11	0.04	6	8 hour step testing
-15 ABB	Kfh	-/-/53	7	---	10.9	0.37	6
SHERIDAN COUNTY
55/85-7 AB	K1	7/-/59		93 R	3 R	0.03	8
57/87-1 BD	K1	4/20/60		70 R	8 R	0.11	8

Abbreviations:

Kfh = Fox Hills Sandstone K1 = Lance Formation Tft = Tullock member of Fort Union Formation E = Estimated

Date Sources:

1 - Lowry, 1972 2 - Littleton, 1950 3 - Northern Great Plains Resource Program, 1974 4 - Whitcomb and Morris, 1964 5 - Whitcomb and others, 1966 6 - Crist and Lowry, 1972 7 - Whitcomb, 1965 8 - Lowry and Cummings, 1966

Table Source:
Feathers, K.R., Libra, R., Stephenson and Eisen, C. 1981. Occurrence and characteristics of ground water in the Powder River Basin, Wyoming. Laramie, WY: University of Wyoming, Water Resources Research Institute, pp. 101-103.

Appendix C.4
Fort Union/Wasatch Aquifer System

Table C.4.1 Transmissivities of The Wasatch/Fort Union Aquifer System,
Powder River Structural Basin, Powder/Tongue River Basin Plan Area, Wyoming

Site Name	Location (T/R)	Test Date	Test Typea	Tested Thickness (ft)	Transmissivity (gpd/ft)b	Permeability (gpd/ft2)b	Storage Coefficient	Data Source	Remarks
Fort Union Formation
East Gillette Mine	50/71	10/26/76	Slug	20	371	19.0C	1x10-5	4	Bad packer seal, shaley material in interval tested
Fort Union Mine	50/71	---	Slug?	140	148-183C	.87-1.07	---	4
USGS Test	54/84	---	Pumped well & recovery	---	95	7.9		6	24 hr. test, both Jacob & Theis methods
USGS Test	55/84	---	Recovery	---	10	2.5		6	1.3 hr. recovery test
Sheridan Enterprises	57/84	---	Fall. head	---	---	0.007	---	4
Welch #1 Mine		---	---	---	---	0.002	---	4
Coal
East Gillette Mine	50/71	10/22/76	Pump	---	---	---	---	4	Near "clinker"
				100	361	3.6C	3.5x10-5
				104	441	4.2C	8.8x10-3
		10/12/76	Pump	---	---	---	---	4	Recharging image well effects
				105	13	0.12C	1.4x10-3
				105	63	0.60C	1.2x10-3
		11/3/76	Pump	---	---	---	---	4	Recharging image well effects
				94	8730	93C	0.33
				100	1420	14C	5.8x10-3		Average of two obs. wells
		10/29/76	Pump	100	392	3.9C	1.2x10-3	4
		8/7/76	Pump	80	1421-815	---	7.3x10-4	4	Analyzed for anistropy
		10/25/76	Slug	20	74	3.7C	0.01	4
		10/25/76	Slug	20	1	0.05C	1x10-3	4
		10/26/76	Slug	20	165	8.3C	2x10-4	4
		10/26/76	Slug	20	106	5.3C	1x10-4	4
		10/26/76	Slug	20	5	0.25C	1x10-4	4
		10/26/76	Slug	20	12	0.60C	1x10-3	4
Fort Union Mine	50/71	---	Slug?	?	11-18.8	5.5-3.2	---	4	Includes thin ss lens
		---	Slug?	4	6.13	1.02	---	4
		---	Slug?	2	0.3	0.15	---	4
		---	Slug?	2½	0.45	1.18	---	4	Includes shale
USGS Test	54/81	---	Pumped well & recovery	---	520	6.5	2.4x10-2	6	24 hr. test, both Jacob & Theis methods
Sheridan Enterprises	57/84	---	Rising head	---	57	19	---	4
Welch #1 Mine		---	Falling head	---	14	0.72	---	4
		---	Pump	---	100	4.2	3x10-4	4
Sheridan Area Coal	---	---	---	---	454	18	1.8x10-5	4	Dietz #1 coal average of 9 test
	---	---	---	---	542	38	1.8x10-3	4	Dietz #2 coal average of 6 test
	---	---	---	---	449	11	5.3x10-4	4	Dietz #3 coal average of 2 test
"Clinker"
East Gillette Mine	50/71	1/19/76	Pump	14	---	---	---	4	Pumped well in coal/clinker
				14	>8500	>610C	~0.16		Obs. well in coal
				15	200	13C	~0.35		Obs. well in coal
		10/22/76	Pump	---	---	---	---	4	Pumped well in coal
				104?	---	---	---		Obs. well in clinker, no drawdown
				104?	974	9.4C	---		Obs. well in clinker
				100	361	3.6C	7.8x1--4		Obs.well in coal/clinker
Fort Union Mine	50/71	---	Slug?	13	2757	215		4
			Slug?	23	1150	50		4	Well also in sandstone
Wasatch Formation
East Gillette Mine	50/71	12/6/76	Slug	20	38	1.9C	3x10-3	4	Shaley zone tested
USGS Test	51/82	9/2/61	Pumped well	145	2500	17	---	7	3.75 hr. test
USGS Test	57/83	---	Recovery	---	2200	---	---	6	3.5 hr. recovery test

Notes:
^a "pump" indicates existence of observation wells; "pumped well" indicates no observation wells.
^b C indicates table entry is derived by calculation from other, reported values.

Date Sources:

1 - Bergman and Marcus, 1976 2 - Davis, 1975 3 - Davis and Rechard, 1977 4 - Wyoming Department of Environmental Quality mine plan files 5 - Wyoming Water Development Commission files 6 - Lowry and Cummings, 1966 7 - Whitcomb and others, 1966 8 - Whitcomb and Morris, 1964

Table Source:

Feathers, K.R., Libra, R., Stephenson and Eisen, C. 1981. Occurrence and characteristics of ground water in the Powder River Basin, Wyoming. Laramie, WY: University of Wyoming, Water Resources Research Institute, pp. 111-114.