PERMFILE119721

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 5/21/2004
• Section_Exhibit Name: Table 08t Water Quality Data for Site 008-AW-3
• Media Type: D
• Archive: No

TWENTYMILE C~COMPANY • •
PERMIT REVISION 6
PERIOD OF RECORD WATER QUALITY DATA
CATEGORY PARAMETER ANALYSIS TYPE AVERAGE STD. DEV. MAXIMUM MINIMUM UNITS COUNT BEGIN END
PHYSICAL PROPERTIES TEMPERATURE FIELD 10.28 4.11 21.00 2.10 DEGREES C 22fi 07/83 12/02
CONDUCTNITY FIELD 3,136.50 674.38 4,670.00 950.00 UMHOS/CM 226 07/83 12/02
LAB 3,323.28 367.49 3,970.00 1,540.00 UMHOS/CM 65 10/86 11/02
PH F[ELD 7.04 0.33 8.30 6.10 PH 225 07/83 12/02
LAB 7.09 0.29 8.00 6.70 PH 26 07/86 11/02
ALKALMFfY TOTAL 585.67 99.18 806.00 282.00 MG/L 55 07/86 08/99
HARDNESS AS CACO3 2,243.30 428.93 3,951.00 876.00 MG/L 64 01/84 08/99
SOLIDS SUSPENDED 4,340.00 0.00 4,340.00 4,340.00 MG/L 1 08/87 08/87
TOTAL-DISS 3,219.33 587.22 4,180.00 140.00 MG/L 76 01/84 11/02
CATIONS CALCIUM DISSOLVED 453.16 117.92 1,100.00 52.00 MG/L 75 01/84 11/02
MAGNESIUM DISSOLVED 270.77 73.11 448.00 28.00 MG/L 75 01/84 Il/02
SODIUM DISSOLVED 107.31 31.55 155.00 5.00 MG/L 73 01/84 11/02
SAR NOT APPLICABLE L02 0.31 1.45 0.05 UNDEFMED 59 01/84 08/99
ANIONS BICARBONATE AS HCO3 691.36 128.64 983.00 344.00 MG/L 78 01/84 11/02
CARBONATE AS CO3 0.26 1.60 10.00 0.00 MG/L 39 02/91 11/02
HYDROXIDE AS OH 0.00 0.00 0.00 0.00 MG/L 20 12/94 08/99
CHLORIDE NOT APPLICABLE 8.29 2.14 12.00 6.00 MG/L 7 01/84 08/87
SULFATE NOT APPLICABLE 1,940.04 391.72 3,200.00 538.00 MG/L 79 01/84 11/02
PRIMARY ARSENIC DISSOLVED 0.25 0.71 2.00 0.00 UG/L 8 04/84 04/89
CADMIUM DISSOLVED 0.06 0.24 1.80 0.00 UG/L 69 04/84 11/02
LEAD DISSOLVED 3.23 14.57 80.00 0.00 UG/L 62 04/87 11/02
MERCURY DISSOLVED 0.01 0.07 0.60 0.00 UG/L 69 04/84 11/02
SELENIUM DISSOLVED 0.72 2.35 15.00 0.00 UG/L 69 04/84 II/02
SECONDARY ZINC DISSOLVED 61.88 35.85 135.00 10.00 UG/L 8 04/84 04/89
IRON DISSOLVED 7,857.38 11,665.77 52,600.00 0.00 UG/L 74 01/84 11/02
MANGANESE DISSOLVED 4,088.93 2,187.17 7,790.00 0.00 UG/L 74 01/84 Il/02
TRACE METALS MOLYBDENUM DISSOLVED 0.32 2.54 20.00 0.00 UG/L 62 04/87 11/02
NUTRIENTS NITROGEN AMMIUM-TOTAL 2.05 1.43 7.20 0.00 MG/L 61 10/86 11/Ol
AMMIA-FREE 1.29 8.96 70.00 0.00 MG/L 61 04/84 11/02
NITRATE 0.34 0.72 3.35 0.00 MG/L 65 07/86 11/02
NITRITE 0.03 0.08 0.42 0.00 MG/L 31 10/86 11/02
NO3+NO2 0.36 0.72 3.38 0.00 MG/L 73 01/84 11/02
PHOSPHATE TOTAL-TOTAL 3.02 0.00 3.02 3.02 MG/L 1 08/87 08/87
ORTHO-DISS 0.01 0.03 0.18 0.00 MG/L 70 04/84 .11/02
TABLE S[ SITE: 008-AW-3 (FISH CREEK ALLUVIUM)