PERMFILE46989

• Permit No: C1981044
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Pages 60-167
• Section_Exhibit Name: Exhibit 18 Drainage Part 2
• Media Type: D
• Archive: No

--- Cyprus Empire Corporation ---

* *
* RESULTS TO DRAINAGE FROM SWS1
* *
* ******************************************************************************
* *
* Total Drainage Area to This Point = 1.543 acres
* *
* RUNOFF PEAK PEAK SEDIMENT PEAK SETTLEABLE SEDIMENT
* VOLUME DISCHARGE CONCENTRATION CONCENTRATION YIELD
* (ac-ft) (cfs) (mg/1) (ml/1) (tons)

* IN/OUT 0.006 0.012 161904.00 108.933 0.25
*
* *
* AVERAGE SETTLEABLE CONCENTRATION:
* TIME OF VOLUME WEIGHTED DURING ARITHMETIC DURING
* SIGNIFICANT TIME OF PEAK TIME OF PEAK
* CONCENTRATION SIGN. CONC. 24 HOUR SIGN. CONC. 24 HOUR
* (hrs) (ml/1) (ml/1) (ml/1) (ml/1)

* IN/OUT 1.I0 102.55 102.55 111.67 5.12
* *
* ******************************************************************************

Exhibit 18 Revised 12/8/89
-92-