PERMFILE116165

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: NH1 TAB 7 APPENDIX 7-4 Groundwater Quality Analysis Including Aquifer Statistics
• Media Type: D
• Archive: Yes

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NUCLA MINE GROUND WATER QUALITY REPORT (CONT INUATIOtI)
SAMPLE POINT GW-N9(WA0009)
LOCATION 47N16W25CAD
GEOLOGIC UNIT OVERBURDEN AND DAK07A COAL
DATE OF COLLECTION 06/23/83 10/27/83 05/29/84 10/18/84 05/30/85 10/17/85 05/22/86
FIELD PARAMETERS
CONDUCTIVITY (UMHOS/CM) 2850.00 2410.00 16.00 2500.00 2840. 00 3020.00
PH (UNI7SI 6.70 6. B0 6.60 6.70 6. 65 6.70 6.55
HATER TEMPERATURE (DEC C) 15.00 15.00 20.00 12.90 15. 00 12.50 13.80
DEPiH TO WATER (FT) 37.58 35.61 36.20 34. 92 36.86 39.97
LABORATORY PARAMETERS
ALKALINITY, DISS. (MG/L OF CAC03) 328.00 299.00 365.00 3?_0.00 426. 00 352.00 430.00
ALUMINUM, DISS. (MC/L) < 0.20 < 0.20 < 0.20 < 0.20 < 0. 05 < 0.05 < 0.05
ARSENIC, DISS. (UG/L) < 2.00 < 2.00 < 2.00 < 2.00 < 1. 00 < 1.00 < 1.00
BARIUM, DISS. (UC/L)
BICAR80NATE, DISS. (MC/L) 400.00 365.00 445.00 390.00 520. 00 429.00 525.00
BORON, DISS, (UC/L) 170.00 140.00 300.00 252.00 290. 00 280.00 320.00
CADMIUM, DISS. (UG/L) 8.00 < 5.00 < 5.00 < 5.00 < 5. 00 < 5.00 < 5.00
CALCIUM, DISS. (MG/L) 551.00 580.00 550.00 478.00 606. 00 575.00 511h.00
CARBONATE, DISS. (MG/L) 0.00 0.00 0.00 O.UO 0. 00 0.00 U.OU
CIILORIDE, DISS. (MC/L) 3.00 1.00 2.00 2.00 3. 00 9.00 21.00
CHROMIUM, DISS. (UC/L)
CONDUCTIVITY ® 25 DEG C (UMHOS/CM) 3540.00 3000.00 3310.00 3330.00 3820. OD 3370.00 3870.00
COPPER
DISS. (UC/L) < 20.00 < 20.00 < 20.00 20.00 < 20. 00 < 20.00 6(1.00
,
FLUORIDE, DISS. (MC/L) 0.60 0.84 0.76 0.66 0. 41 0.80 0.57
HARDNESS AS CAC03 (MG/L) 2700.00 2640.00 2549.00 2700.00 2900. 00 2614.00 2779.00
IRON, DISS. (MO/L) 1.69 0.72 0.53 1.87 2. 97 2.44 5.15
LEAD
DISS. (UG/L) 110.00 120.00 < 20.00 < 20.00 < 20. 00 < 20.00 < 20.00
,
MAGNESIUM, DISS. (MG/L) 320.00 200.00 285.00 353.00 335. 00 287.00 346.00
MANGANESE, DISS. (IAC/L) 2.28 1.63 1.93 2.50 2. 33 1.86 0.92
MERCURY, DISS. (UG/L) < 1.00 < 1.00 < 0.50 < 0.50 < 0. 50 < 0.20 c 0.20
MOLYBDENUM, DISS. (UC/L) 200.00 < 200.00 < 200.00 < 200.00 < 50. 00 < 50.00 < 50.00
NICKEL, DISS. (UG/(.)
N ITROCEN, AMMONIA, DISS. (MC/L) 0.46 0.35 0.18 0.31 (1. 41 0.57 0.92
NITROGEN, NITRATE, DISS. (MC/L) 0.02 0.03 0.21 < 0.02 < 0. 02 0.03 0.13
NITROGEN, NITRITE, DISS. (MC/L) '
PFI Q 25 DEG C 6.90 6.80 6.80 6.70 7. 70 6.80 7.20
PHOSPHATE AS P04, DISS. (MG/L) < 0.10 < 0.30 < 0.10 O.IU < 0. 10 0.10 < f1. 10
POTASSIUM, DISS. (MG/L) 7.10 12.00 6.10 4.90 11. 00 6.00 15.00
SELENIUM, DISS. (UC/L) 2.00 < 2.00 < 2.00 < 2.00 < 2. 00 < 2.00 < 1.00
SILVER, DISS. (UG/L)
SODIUM, DISS. (MG/L) 25.00 120.00 20.00 19.00 45. 00 40.00 101.00
SAR 0.21 1.11 0.17 0.16 0. 37 0.34 0.84
SIILFATE, DISS. (MC/L) ~ 2300.00 1950.00 2330.00 2310.00 2480. 00 2258.00 2587.00
SULFIDE, 70TAL (MC/L)
SUSPENDED SOLIDS (MG/L) 172.00 158.00 120.00 568.00 489. 00 188.00 206.00
ZINC, DISS. (MG/L) 0.25 0.25 0.25 0.15 0. 12 0.13 p. ifJ
CATION/ANION BALANCE (%) - 0.70 4.00 4.00 0.14 0. 54 0.47 2.50
DISS. DISSOLVED SOLIDS ® 180 DEC (IAC/L) 3660.00 3140.00 3540.00 3530.00 3850. 00 3438.00 4008.00
OISS. DISSOLVED SOLIDS, CALCULATED (MC/L) 3410.00 3060.00 3375.00 3370.00 3750. 00 3400.00 3872.00
INDICATES NO DATA