2009-04-13_REPORT - C1980006 ‎(2)‎

• Permit No: C1980006
• IBM Index Class Name: REPORT
• Doc Date: 4/13/2009
• Doc Name: 2008 ARR Request for Assistance Memo
• From: Janet Binns
• To: Tom Kaldenbach
• Annual Report Year: 2008
• Permit Index Doc Type: Hydrology Report
• Email Name: TAK
• Media Type: D
• Archive: No

Kerr (Marr) Mine - 2008 Annual Hydrology Reporl
TABLE 2 - SITE AP-2, HISTORIC LOADOUT AREA ALLUVIAL WATER QUALITY DATA.
Parameters 1999 2000 2001 2002 2003 2004 2005 . 2006 2007 2008
Temp (°C) 11.0 10.0 10.7 12.7 12.3 11.3 10.0 15.1 12.7 11.5
pH (su) 7.9 7.9 7.9 8.0 8.1 7.9 7.9 8.0 8.0 7.9
EC (µmhos/cm) @ 20°C 483 500 433 471 567 467(-) 100(-) 823 701 650.0
TDS 340 397 333 393 663 970 346.7 483 383 345.0
SAR (in water) 0.77 1.11 0.76 1.03 2.33 3.84 0.78 . 1.5 0.81 0.8
Calcium (dissolved) 56.3 57.4 51.9 53.7 69.8 69.2 53.1 64.7 56.6 49.5
Sodium (dissolved) 30.1 44.9 29.0 40.0 111.1 205:8 29.9 64.4 32.2 28.4
Magnesium (dissolved) 37.1 39.7 35.1 38.5 51.5 58.3 35.7 46.2 38.8 33.6
Potassium (dissolved) 1.7 1.9 1.8 1.9 2.1 2.0 1.5 1.9 2.0 1.6
Sulfate 37 33 30 37 110 167 36.7 60 36.7 30.0
Chloride 9 7 7 8 12. 15 6.3 10 8.0 6.9
Carbonate (as CaC03) <2 <2 <2 <2 <2 <2 <2 <2 <2 11.0
Bicarbonate (as
CaC03 307 348 302 322 523 698 315.7 403 316.7 305.0
Fluoride 0.4
Nitrate-Nitrogen (disc) 0.06 0.04 0.01 0.14 0.05 0.02 0.01 0.04 0.04 0.025
Iron (dissolved) 0.)6 0.26 0.24 0.16 0.20 0.47 0.29 0.29 '0.087 0.2
Manganese (dissolved) 0.15 0.30 0.20 0.22 0.65 0.23 0.192 0.281 0.489 0.1
Notes: All values represent mean annual values in mg/I unless otherwise noted.
= Equipment malfunction (EC 2004 and 2005)

FIGURE 3 I
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I EC vs TDS - WELL AP-2
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200 I
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Jul-98 Jul-99 Jul-00 Jul-01 Jul-02 Jul-03 Jul-04 Jul-05 Jul-06 Jul-07 Jul-08
DATE

i TDS o EC'
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Kerr N7inc/AHR 2008 Page 5