REP05275

• Permit No: C1980006
• IBM Index Class Name: Report
• Doc Date: 1/12/2000
• Doc Name: 1999 ANNUAL HYDROLOGY REPORT COLO PN C-80-006
• Annual Report Year: 1999
• Permit Index Doc Type: HYDROLOGY REPORT
• Media Type: D
• Archive: No

' Jnmtary ?000 Kerr Coa( Company "/999 ,9 nnua( Hvdro(op~ Report "CO Permit No. C80-006 ~ Pnee 17

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TABLE 6
HISTORIC LOADOUT AREA ALLUVIAL WATER QUALITY DATA
SITE AP-1
Parameters 1995 1996 1997 1996 1998
Temp 1°C) 7.7 8.7 8.6 9.5 11 .0
pH Isul 7.5 7.6 7.8 7.8 7.9
E.C. IF+mhos/cml @ 20°C 467 467 500 467 417
TDS 349 340 363 340 307
SAR (in water) 0.49 0.53 0.53 0.56 0.64
Calcium Idissolvedl 53.0 53.5 55.3 47.4 45.3
Sodium Idissolvedl 20.0 21.6 22.1 21.6 23.8
Ma nesium Idissolvedl 47.0 45.3 47.8 40.9 37.7
Potassium Idissolvedl < 1 0.8 1.2 1.1 1.1
Sulfate 47 30.3 36.7 33.3 30.0
Chloride 3.0 6.7 9.0 6.7 4.7
Carbonate las CaC031 <2 <2 <2 <2 3.7
Bicarbonate las CaC031 317 305 324 297 281
Fluoride 0.5 0.6 0.6 0.5 0.5
Nitrate-Nitro en Idissolvedl 0.06 0.03 <0.02 <0.02 0.07
Iron Idissolvedl 0.54 0.34 0.09 0.19 0.11
Man anese Idissolvedl 0.55 0.591 0.918 0.561 0.574
Aluminum Idissolvedl 0.12 0.08 <0.03 <0.03 0.023
Barium Idissolvedl 0.10 0.09 0.09 0.092 0.085
Boron Idissolvedl 0.04 0.04 0.05 0.05 0.05
Cadmium Idissolvedl <0.005 <0.003 <0.003 <0.003 <0.003
Chromium Idissolvedl <0.01 <0.01 <0.01 <0.01 <0.01
Copper Idissolvedl <0.01 <0.01 <0.01 <0.01 <0.01
Lead Idissolvedl <0.02 <0.02 <0.04 <0.04 <0.04
Mercury Idissolvedl <0.0002 <0.0002 <0.0002 <0.0002 <0.0002
Molybdenum Idissolvedl <0.01 <0.01 <0.01 <0.01 <0.01
Nickel Idissolvedl <0.02 <0.01 <0.01 <0.01 <0.01
Phosphorus lortho dissolved) <0.005 0.03 <0.005 0.009 0.004
Vanadium (dissolved) <0.01 <0.005 <0.005 <0.005 <0.005
Notes: All values represent mean annual values in mg/I unless otherwise noted.
Montgomery Watson • P.O. Boz 774018 "Steamboat Springt, Colorado 80477 ' (970J 8796260
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