PERMFILE131322

• Permit No: C1982056
• IBM Index Class Name: Permit File
• Doc Date: 5/21/2004
• Section_Exhibit Name: Table 08n Water Quality Data for Site 006-AZ-3
• Media Type: D
• Archive: No

TWENTYMILE COMPANY .
PERMIT REVISION 6
PERIOD OF RECORD WATER QUALITY DATA
CATEGORY PARAMETER ANALYS/S TYPE AVERAGE STD. DEV. MAXIMUM MINIMUM UNITS COUNT BEGIN END
PHYSICAL PROPERTIES TEMPERATURE FIELD 8.79 3.27 18.00 1.80 DEGREES C 183 01/87 12/02
CONDUCTNITY FIELD 1,397.99 322.15 3,490.00 438.20 UMHOS/CM 183 01/87 12/02
LAB 1,362.25 229.80 1,904.00 878.00 UMHOS/CM 61 01/87 11/02
PH FIELD 7.66 0.33 8.50 6.86 PH 182 01/87 12/02
LAB 7.46 0.25 8.10 7.06 PH 22 01/87 11/02
ALKALINITY TOTAL 321.67 37.60 375.00 138.00 MG/L 51 01/87 08/99
HARDNESS AS CACO3 464.56 98.54 717.00 308.00 MG/L 50 01/87 08/99
SOLIDS SUSPENDED 1,704.00 0.00 1,704.00 1,704.00 MG/L 1 06/91 06/91
TOTAL-DISS 989.79 228.07 1,500.00 596.00 MG/L 6l 01/87 11/02
CATIONS CALCIUM DISSOLVED 119.39 31.48 188.00 19.00 MG/L 61 01/87 11/02
MAGNESIUM DISSOLVED 51.67 14.42 83.40 6.20 MG/L 61 01/87 11/02
SODIUM DISSOLVED 134.72 19.95 173.00 13.00 MG/L 61 01/87 Il/02
SAR NOT APPLICABLE 2.70 0.26 3.58 1.97 UNDEFINED 53 01/87 08/99
ANIONS BICARBONATE AS HCO3 398.64 59.63 640.00 !68.00 MG/L 64 01/87 11/02
CARBONATE AS CO3 0.68 3.26 19.00 0.00 MG/L 38 02/91 11/02
HYDROXIDE AS OH 0.00 0.00 0.00 0.00 MG/L 20 12/94 08/99
SULFATE NOT APPLICABLE 487.11 224.58 1,870.00 263.00 MG/L 65 01/87 11/02
PRIMARY ARSENIC DISSOLVED 0.00 0.00 0.00 0.00 UG/L 1 04/89 04/89
CADMIUM DISSOLVED 0.04 0.15 1.00 0.00 UG/L 60 01/87 11/02
TOTAL RECOV 0.30 0.00 0.30 0.30 UG/L 1 06/91 06/91
LEAD DISSOLVED 2.00 7.98 40.00 0.00 UG/L 60 01/87 11/02
MERCURY DISSOLVED 0.00 0.01 0.10 0.00 UG/L 60 01/87 11/02
TOTAL RECOV 0.00 0.00 0.00 0.00 UG/L 1 06/91 06/91
SELENIUM DISSOLVED 0.25 0.93 6.00 0.00 UG/L 60 01/87 11/02
TOTAL RECOV 0.00 0.00 0.00 0.00 UG/L 1 06/91 06/91
SECONDARY SILVER TOTAL RECOV 0.00 0.00 0.00 0.00 UG/L 1 06/91 06/91
ZMC DISSOLVED 5.00 7.07 10.00 0.00 UG/L 2 01/87 04/89
TOTAL RECOV 30.00 0.00 30.00 30.00 UG/L 1 06/91 06/91
IRON DISSOLVED 532.46 1,688.45 13,000.00 0.00 UG/L 61 01/87 11/02
TOTAL RECOV 10,100.00 0.00 10,100.00 10,100.00 UG/L 1 06/91 06/91
MANGANESE DISSOLVED 114.02 46.91 270.00 0.00 UG/L 60 01/87 11/02
TOTAL RECOV 140.00 0.00 140.00 140.00 UG/L 1 06/91 06/91
TRACE METALS MOLYBDENUM DISSOLVED 0.17 L29 10.00 0.00 UG/L 60 01/87 11/02
TOTAL RECOV 0.00 0.00 0.00 0.00 UG/L 1 06/91 06/91
NUTRIENTS NITROGEN AMMIUM-TOTAL 1.51 2.15 12.00 0.00 MG/L 58 01/87 11/01
AMMIA-FREE 0.22 0.68 4.11 0.00 MG/L 52 01/87 11/02
NITRATE 0.28 0.35 1.95 0.00 MG/L 60 01/87 11/02
NITRITE 0.04 0.04 0.15 0.00 MG/L 29 04/95 11/02
TABLE 8n SITE: 006-AZ-3 (FISH CREEK ALLUVIUM)