REP12275

• Permit No: C1981028
• IBM Index Class Name: Report
• Doc Date: 7/6/2005
• Doc Name: 2004 AHR Review Memo
• From: Tom Kaldenbach
• To: File
• Annual Report Year: 2004
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Table 3 -Dilution of spoil leachate by receiving ground water in Laramie sandstone and coal
Receiving ground water: Laramie sandstone and coal
Original source of migrating Spoil leachate
contaminated water:
Receiving ground water Migrating contaminated Concentration resulting
from mixing of receiving
before contamination water
and contaminated water
A B C D
(axsy+(cxD)
Contaminant Dilution cycle Flow Concentration Flow Concentration
(fpd) (mg/p (fpd) (mg/p (A+C)
TDS:
1 0.003 1000 0.005 7000 4750
2 0.003 1000 0.003 4750 2875
3 0.003 1000 0.003 2875 1938
4 0.003 1000 0.003 1938 1469
5 0.003 1000 0.003 1469 1234
SAR:
1 0.003 3.00 0.005 16.00 11.13
2 0.003 3.00 0.003 11.13 7.06
3 0.003 3.00 0.003 7.06 5.03
4 0.003 3.00 0.003 5.03 4.02
5 0.003 3.00 0.003 4.02 3.51