Appendix Tables

**Table 1.** Physical properties, general mineral characteristics, and major ions in ground-water samples collected from springs discharging from clinker and wells completed in the Wasatch aquifer and coalbed aquifers [µS/cm, microsiemens per centimeter; mg/L, milligrams per liter; ANC, acid-neutralizing capacity; CaCO₃, calcium carbonate; NR, not reported because of problem with ANC analysis]
Site number	U.S. Geological Survey site-identification number	Local well number	Geologic unit	Hydrogeologic unit	Date of collection	Sample time	Specific conductance, field measurement (µS/cm)	pH, field measurement
S1	433652105075501	42-069-15dbb01	Clinker in Tongue River Member of the Fort Union Formation	Springs discharging from clinker	06-14-99	1545	303	7.8
S2	442232105264101	51-071-30bac01	Clinker in Tongue River Member of the Fort Union Formation	Springs discharging from clinker	06-21-99	1530	1,610	7.5

W1	440253105385702	47-073-16cbc02	Wasatch Formation	Wasatch aquifer	06-16-99	1000	438	8.6
W2	440542105351802	48-073-36bcc02	Wasatch Formation	Wasatch aquifer	06-17-99	1121	914	8.2
W3	440724105291301	48-072-22adc01	Wasatch Formation	Wasatch aquifer	06-24-99	1720	870	8.1
W4	440724105291302	48-072-22adc02	Wasatch Formation	Wasatch aquifer	06-25-99	0935	4,110	7.6
W5	440724105291303	48-072-22adc03	Wasatch Formation	Wasatch aquifer	06-25-99	1035	4,330	7.2
W6	441019105414502	49-074-36ddc02	Wasatch Formation	Wasatch aquifer	06-23-99	1024	1,850	7.6
W7	441451105375502	^2,349-073-03cc 02	Wasatch Formation	Wasatch aquifer	06-17-99	1640	770	8.9
W8	443241105360801	53-073-26dba01	Tongue River Member of the Fort Union Formation above Wyodak-Anderson coal zone	Wasatch aquifer	06-29-99	1535	2,490	7.3

C1	433408105270101	342-072-36dbc01	Wyodak-Anderson coal zone	Coalbed aquifers	06-29-99	1150	688	7.2
C2	434252105264301	343-072-12dac01	Wyodak coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	1420	684	7.1
C4	435411105294001	45-072-03dbd01	Upper Wyodak coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	1320	990	7.2
C5	435915105242201	46-071-05dda01	Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	1230	1,070	7.2
C6	440139105253301	47-071-30aaa01	Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	1135	1,060	7.1
C8	440358105331401	³47-072-07acc01	Wyodak coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	1040	1,150	7.2
C10	440623105364101	48-073-27dac01	Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	0955	1,210	7.4
C11	440808106070601	³48-077-16acc01	Big George coal bed3	Coalbed aquifers	06-24-99	1330	4,180	6.9
C12	440756105293301	³48-072-15dcc01	Wyodak-Anderson coal zone	Coalbed aquifers	06-25-99	0905	665	7.4
C13	441017105352201	³48-073-02aac01	Wyodak coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	0915	1,520	7.0
C15	441047105535401	49-075-32adb01	Coal bed or zone below the Wyodak-Anderson coal zone	Coalbed aquifers	06-24-99	1110	1,060	7.3
C16	441451105375501	349-073-03ccc01	Upper Wyodak coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-18-99	1005	1,700	7.3
C17	443241105360802	53-073-26dba02	Canyon coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-29-99	1600	1,790	7.8

Temperature (degrees Celsius)	Calcium, dissolved (mg/L)	Magnesium, dissolved (mg/L)	Sodium, dissolved (mg/L)	Sodium-adsorption ratio	Potassium, dissolved (mg/L)	Chloride, dissolved (mg/L)	ANC, (mg/L as CaCO₃)	Bicarbonate, dissolved (mg/L)	Sulfate, dissolved (mg/L)	Fluoride, dissolved (mg/L)	Silica, dissolved (mg/L)	Dissolved solids, calculated (mg/L)	Hardness, (mg/L as CaCO₃)
12	35	9.9	8.1	0.3	6.9	2.5	116	141	28	0.5	26	187	130
10.5	210	65	46	0.7	25	12	160	195	720	0.8	30	1,200	790

20	6.2	1.5	97	9	2.2	8.1	206	251	13	0.8	11	263	22
20.5	12	6.7	180	10	6.9	17	378	461	100	0.9	10	562	57
17.5	19	6.4	180	9	4.6	6.4	455	555	23	1	9.9	527	75
14.5	450	93	480	5	12	5	129	157	2,400	< 0.1	9.2	3,490	1,500
14.5	550 ¹550	280 ¹270	270 ¹260	2 ¹2	14 ¹14	18 ¹17	267 ¹267	326 ¹326	2,700 ¹2,700	0.3 ¹0.3	17 ¹16	4,020 ¹4,020	2,500 ¹2,500
18.5	7.7	24	330	13	13	0.3	1,020	1,244	10	1.5	10	1,010	120
19	11	2.7	160	11	3.7	11	NR	NR	160	0.9	8	NR	38
16	6.5	94	280	5	18	14	723	882	740	0.5	15	1,660	550

9.5	17	8.7	130	6	5.7	6.9	360	439	< 0.1	1.9	11	395	80
19	17	8.4	130	6	4.9	9.3	355	433	1.8	1.2	10	396	77
17	23	15	190	7	8.7	24	504	615	< 0.1	1.5	10	571	120
17	32	14	210	8	8.3	15	584	712	< 0.1	1.4	9.1	644	140
17	37	15	200	7	8.9	12	573	699	< 0.1	1.1	9.7	625	150
20	40	22	210	6	13	8.5	632	771	< 0.1	1.2	11	680	190
20	36	23	210	7	15	9.1	647	789	0.9	1.3	11	697	180
26	51	39	1,000	26	48	21	2,570	3,134	< 0.3	1.2	7.4	2,720	290
20	15	8.7	120	6	6.3	8.9	346	422	< 0.1	1.6	9.9	382	74
18.5	49	27	270	8	13	7.7	853	1,040	< 0.1	0.8	10	888	230
27	25 ¹26	14 ¹14	190 ¹190	8 ¹8	13 ¹12	7 ¹7	580 ¹580	707 ¹707	1.2 ¹1.2	1.1 ¹1.1	20 ¹20	624 ¹622	120 ¹120
17	54	29	340	9	13	8.3	956	1,166	1	0.9	10	1,030	260
14	62	33	330	8	12	11	962	1,173	0.7	0.6	11	1,040	290

¹Replicate sample.

²Plots in section 4 when using Global Positioning System (GPS) location; well is assigned to section 3 on well permit, so this location was used.

³Well located in center of quarter-quarter section.

⁴Big George coal bed considered equivalent to the Wyodak-Anderson coal zone (Flores and Bader, 1999)

**Table 2.** Radioactive and stable-isotope values for ground-water samples collected from springs discharging from clinker and wells completed in the Wasatch aquifer and coalbed aquifers [pCi/L, picocuries per liter; d²H, deuterium/hydrogen isotopic ratio; d¹⁸O, oxygen-18/oxygen-16 isotopic ratio; ‰, parts per thousand or per mil; <MRL, value less than minimum reporting level of 1 picocurie per liter]
Site number	U.S. Geological Survey site-identification number	Local well number	Geologic unit	Hydrogeologic unit	Date of collection	Sample time	Tritium (pCi/L)	Analytical uncertainty¹ (+/-pCi/L)	δ2H (‰)	δ18O (‰)
S1	433652105075501	42-069-15dbb01	Clinker in Tongue River Member of the Fort Union Formation	Springs discharging from clinker	06-14-99	1545	76	4	-138.5	-18.04
S2	442232105264101	51-071-30bac01	Clinker in Tongue River Member of the Fort Union Formation	Springs discharging from clinker	06-21-99	1530	52	3	-142.6	-18.41

W1	440253105385702	47-073-16cbc02	Wasatch Formation	Wasatch aquifer	06-16-99	1000	<MRL	1	-139.0	-18.03
W2	440542105351802	48-073-36bcc02	Wasatch Formation	Wasatch aquifer	06-17-99	1121	9	1	-124.0	-15.57
W3	440724105291301	48-072-22adc01	Wasatch Formation	Wasatch aquifer	06-24-99	1720	2	1	-140.7	-18.40
W4	440724105291302	48-072-22adc02	Wasatch Formation	Wasatch aquifer	06-25-99	0935	<MRL	1	-148.6	-19.02
W5	440724105291303	48-072-22adc03	Wasatch Formation	Wasatch aquifer	06-25-99	1035	6 ²9	1 1	-147.8 ²-147.2	-19.03 ²-19.02
W6	441019105414502	49-074-36ddc02	Wasatch Formation	Wasatch aquifer	06-23-99	1024	2	1	-131.1	-18.14
W7	441451105375502	^3,449-073-03cc 02	Wasatch Formation	Wasatch aquifer	06-17-99	1640	1	1	-146.5	-18.95
W8	443241105360801	53-073-26dba01	Tongue River Member of the Fort Union Formation above Wyodak-Anderson coal zone	Wasatch aquifer	06-29-99	1535	<MRL	1	-138.9	-18.46

C1	433408105270101	442-072-36dbc01	Wyodak-Anderson coal zone	Coalbed aquifers	06-29-99	1150	<MRL	1	-137.9	-17.84
C2	434252105264301	443-072-12da 01	Wyodak coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	1420	<MRL	1	-141.9	-18.31
C4	435411105294001	45-072-03dbd01	Upper Wyodak coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	1320	1	1	-144.2	-18.54
C5	435915105242201	46-071-05dda01	Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	1230	<MRL	1	-138.1	-17.92
C6	440139105253301	47-071-30aaa01	Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	1135	<MRL	1	-140.9	-18.25
C8	440358105331401	447-072-07acc01	Wyodak coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	1040	1	1	-143.5	-18.79
C10	440623105364101	48-073-27dac01	Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	0955	2	1	-143.4	-18.51
C11	440808106070601	⁴48-077-16acc01	Big George coal bed⁵	Coalbed aquifers	06-24-99	1330	1	1	-132.9	-17.80
C12	440756105293301	⁴48-072-15dcc01	Wyodak-Anderson coal zone	Coalbed aquifers	06-25-99	0905	<MRL	1	-136.6	-18.56
C13	441017105352201	⁴48-073-02aac01	Wyodak coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-30-99	0915	<MRL	1	-141.3	-18.40
C15	441047105535401	49-075-32adb01	Coal bed or zone below the Wyodak-Anderson coal zone	Coalbed aquifers	06-24-99	1110	<MRL ²<MRL	1 1	-151.0 ²-150.3	-19.99 ²19.94
C16	441451105375501	449-073-03ccc01	Upper Wyodak coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-18-99	1005	<MRL	1	-134.9	-18.66
C17	443241105360802	53-073-26dba02	Canyon coal bed of the Wyodak-Anderson coal zone	Coalbed aquifers	06-29-99	1600	1	1	-143.7	-18.78

¹Also known as two-sigma precision estimate.

²Replicate sample.

³Plots in section 4 when using Global Positioning System (GPS) location; well is assigned to section 3 on well permit, so this location was used.

⁴Well located in center of quarter-quarter section.

⁵Big George coal bed considered equivalent to the Wyodak-Anderson coal zone (Flores and Bader, 1999).

Go Back Return to Index