REV97932

• Permit No: M1980244
• IBM Index Class Name: Revision
• Doc Date: 5/1/1995
• Doc Name: APPENDIX G WATER BALANCE MODEL
• Type & Sequence: AM6
• Media Type: D
• Archive: No

CRESSON HEAP LEAGH WATER BALANCE
PHASE 2 LEACH PAD
4,500 CONTINOUS APPLICATION RATE TO HEAP
RISK RASED ANALYSIS
`r
INPUT DATA: LAKE EVAPORATION (in)
PRECIP On) MONTH WG
ONTH MEAN TD DE ALPHA BETA MEAN STD DEV ALPHA BETA STAT EVAP FACTOR
AN 0.38 0.27 1.887 0.182 0.870 0.11 ,82.554 0.010 0.87 0.28
FEB 0.34 0.18 4.51E 0.075 1.040 0.25 17.300 0.080 1.04 0.34
MAR 0.00 0.37 2.0.10 0.228 2.370 0.38 3E.828 O.OE4 2.37 0.77
APR 1.37 1.18 1.385 0.882 4.280 0.77 30.89E 0.139 4.28 1.40
MAV 1.87 0.83 7.027 0.238 4.570 0.70 42.E22 0.107 4.57 1.48
JUN 1.89 1.11 2.052 0.775 5.580 0.8E 40.207 0.139 S.SB 1.82
JUL 4.84 2.57 3.547 1.3E5 5.310 0.77 47.558 0.112 5.31 1.73
AUG 3.88 1.95 3.523 1.039 4.500 0.84 48.438 0.081 4.5 1.47
SEP 1.81 0.57 7.878 0.202 3.800 O.EO 40.111 O.OBS 3.8 1.20
OCT 1.08 0.93 1.348 0.801 2.490 0.47 28.087 0.998 2.48 O.B7
NOV 0.38 0.16 5.082 0.071 1.110 0.29 14.650 0.078 1.11 0.38
DEC 0.48 0.50 0.84E 0.543 0.880 0.14 39.510 0.022 0.88 0.28
TOTAL 17.86 TOTAL 3E.80
MONTHLY AVO 3.07 1.00
YEARLY ORE PRODUCTION RATE=
AVG PRIMARY LEACH APPLICATION RATE _
INITIAL ORE MOISTURE:
ORE MOISTURE FIELD CAP.-
AVG BARREN FLOW TO HEAP-
ANNUALAVG DRIP EVAPORATIVE LOSS (% OF USAGFJ7001=
AVG PRECIPITATION LOSS ON INACTIVE HEAP (%/100)=
MINIMUM OPERATING VOLUME OF PREG SOLUTION STORAGE=
OPERATING PREGNANT SOLN. STORAGE VOLUME ABOVE MIN.=
SOLUTION DRAINDOWN DURATION pl AVG. APPLICATION RATE=
100 YEAR, 24 HOUR STORM DEPTH.
•
8,000,000 TONS
0.0034 GPMlSF
0.058 BY WEIGHT
0.08 BY WEIGHT
4500 GPM
0.02
0.25
2,000.000 GALLONS
10,000,000 GALLONS
24 HOURS
3.50 INCHES
I