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 Report
TABLE 1 - SITE AP-1 HISTORIC LOADOUT AREA ALLUVIAL WATER QUALITY DATA
Parameters 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008
Temp °C 11.0 10.0 10.3 13.3 12.0 12.0 11.7 15.3 13.4 12.5
H su 7.9 7.9 8.0 8.0 7.9 7.9 8.0 8.0 8.0 8.0
EC mhos/cm 20'C 417 400 400 383 300 233 (') 100 (') 501 630 525
TDS 307 303 297 295 293 290 260 303 313 280
SAR in water 0.64 0.71 0.69 0.61 0.60 0.60 0.60 0.60 0.71 0.5
Calcium (dissolved) 45.3 44.3 45.1 45.5 43.7 44.1 36.6 44.7 43.3 40.5
Sodium dissolved 23.8 25.8 25.1 22.5 22.3 21.4 19.5 21.5 25.2 17.7
Magnesium dissolved 37.7 35.3 34.6 35.6 34.6 33.9 27.6 33.9 32.8 30.6
Potassium dissolved 1.1 1.0 1.2 1.2 1.0 0.9 1.0 0.9 1.2 0.9
Sulfate 30.0 33.3 27 20 43.3 23.3 30.0 36.7 26.7 25.0
Chloride 4.7 4.3 5 4 3.3 3.0 3.7 4.3 7.0 4.5
Carbonate as CaC03 3.7 <2 <2 <2 <2 <2 <2 <2 <2 6.3
Bicarbonate as CaC03 281 268 284 259 249 270 235.5 254.3 261.0 238
Fluoride 0.5
Nitrate-Nitro en disc 0.07 0.03 0.03 0.26 0.02 0.01 0.01 0.02 0.01 0.02
Iron dissolved 0.11 0.12 0.27 0.11 0.42 0.24 0.3 0.37 0.12 0.1
Manganese (dissolved) 0.574 0.427 0.450 0.463 0.499 0.352 0.276 0.226 0.389 0.4
Notes: All values represent water year mean values in mg/I unless otherwise noted.
Equipment malfunction for EC (2004 and 2005)
Note - Equipment malfunction for EC in parts of 2004 and 2005, data removed.
FIGURE 2
EC vs TDS - WELL AP-1
800 -
700 ° o
600- o o°o 0
500 e e o
10
00
L) °
0 400 -ems o-- ° -oo °©eo o _ . o
300 -i---
U) M;
200 _ o
100
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'
Kerr Mine/AHR 2008 Page 4