PERMFILE49163

• Permit No: C1981071
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: RN TABLE 1 TO TABLE 14
• Media Type: D
• Archive: No

•
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PERMIT RENEWAL TABLE 11A
TROUT CREEK SALT LOAD ANALYSIS
During Low Flow Periods (September)
Analysis for Trout Creek downstream from Middle Creek ConFluence
Assumptions:
1) No flow in Middle Creek except from Foidel Creek flow.
2) All flow in Foidel Creek is from Foidel Creek Mine discharge or CYCC backfill discharge.
1986 Initial Conditions:
Flow
Weighted Percent
Flow TDS TDS Contribution
(cfs) (mg/I) (mg/I) (%)
Trout Ck. Upstream 12.10 551 533 83.7
Foidel Ck. Mine Discharge 0.23 2500 46 7.2
Backfill Discharge 0.18 4000 58 9.0
Trout Ck. Downstream (calculated) 12.51 636 100
1986 Projected Conditions:
Flow
Weighted Percent
Flow TDS TDS Contribution
(cfs) (mg/I) (mg/I) (%)
Trout Ck. Upstream 12.10 551 506 67.1
Foidel Ck. Mine Discharge 0.67 2500 127 16.8
Backfill Discharge 0.40 4000 121 16.1
Trout Ck. Downstream (calculated) 13.17 755 100
Present Conditions 11994. 1995. 1996 Water Yearsl:
Flow
Weighted Percent
Flow TDS TDS Contribution
(cfs) (mg/I) (mg/I) (%)
Trout Ck. Upstream (69) 6.71 469 368 34.6
Foidel Ck. Mine Discharge (115) 0.12 2744 39 3.7
Backfill Discharge (39, 84, 67) 1.72 3256 655 61.7
Trout Ck. Downstream (calculated) 8.55 1063 100
Trout Ck. Downstream (1005)
1996 Permit Renevral
8.44 470
is~document~cycc~eckmanU6renewaYrouttds.xls
Revised 2/01/97