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 TO POND 9-P2
* (continued)
*
* ********************************************** ********************************
*
* INPUT AND CALCULATED BASZN GEOMETRY

* ELEV- DIS- AVG.
* ATION STAGE AREA CHARGE DEPTH CAPACITY
* (ft) (ac) (cfs) (ft) (ac-ft)

* 0.0 0.01 0.00 0.00 0.00
* 0.5 0.02 0.00 0.37 0.01
* 1.0 0.04 0.00 0.74 0.02
* 1.5 0.06 0.00 1.09 0.05
* 2.0 0.07 0.00 1.43 0.08
* 2.5 0.09 0.00 1.76 0.12
* 3.0 0.11 0.00 2.08 0.17
* 3.5 0.13 0.00 2.39 0.23
* 4.0 0.15 0.00 2.71 0.30
* 4.5 0.17 0.00 3.03 0.39
* 5.0 0.19 0.00 3.36 0.48
* 5.5 0.21 0.00 3.68 0.58
* • 6.0 0.23 0.00 4.01 0.68
* 6.5 0.25 0.00 4.34 0.81
* 7.0 0.28 0.00 4.65 0.94
* 7.5 0.31 0.00 4.95 1.09
* 8.0 0.33 0.00 5.25 1.25
* 8.5 0.36 0.00 5.54 1.42
* 9.0 0.39 0.00 5.83 1.61
* 9.5 0.42 0.00 6.12 1.81
* 10.0 0.46 0.00 6.40 2.03 PRINCIPAL SPILLWAY #1
EMERGENCY SPILLWAY
* 10.1 2.10 PEAK STAGE
* 10.6 0.47 7.17 6.75 2.31 *
* 10.7 0.48 9.28 6.82 2.36
* 10.8 0.48 12.22 6.88 2.41
* 10.9 0.48 15.15 6.94 2.46
* 11.0 0.49 18.72 7.00 2.51
* 11.5 0.50 40.35 7.33 2.75
* 12.0 0.52 70.95 7.66 3.01
* *
* RUNOFF PEAK PEAK SEDIMENT PEAK SETTLEABLE SEDIMENT
* VOLUME DISCHARGE CONCENTRATION CONCENTRATION YIELD
* (ac-ft) (cfs) (mg/1) (ml/1) (tons)

* IN 1.201 2.051 34571.77 20.844 20.98
* OUT 1.201 1.733 576.05 0.233 0.71

* •
* 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
Exhibit 18 Revised 12/8/89
-101-