2011-05-11_HYDROLOGY - M2001085

• Permit No: M2001085
• IBM Index Class Name: HYDROLOGY
• Doc Date: 5/11/2011
• Doc Name: Substitute Water Supply Plan
• From: OSE
• To: Martin and Wood Water Consultants, Inc.
• Permit Index Doc Type: Hydrology Report
• Email Name: DB2
• Media Type: D
• Archive: No

REVISED TABLE 2: ASSUMES LINER INSTALLED BY JUNE 30, 2011
GSL SAND AND GRAVEL MINE
OPERATIONAL LOSSESFOR JANUARY 2009 THROUGH DECEMBER 2011 'INCLUDING DEWATERING EFFECTS
(Depletions are considered positive In this table)
(1) (2)

EAR

ET
EVAPORATION
PER ACRE

ONTHLY POTENTIAL AGGREGATE
PRODUCTION VI

UNLAGGED
DEPLETION
DUE TO
CONTINUOUS lei
TOTAL GROUND
WATER
EVAPORATION
AND
OPERATIONAL
MONTH (ACRE-FEET
PER ACRE) MAXIMUM ACRES OF
EXPOSED GROUND WATER'
INCLUDES DEPLETIONS FROM DUST CONTROL (ACRE-
FEE AMOUNT WATER LOSS
(TONS) ACRE-FEET DEWATERING
(ACRE-FEET) WATER LOSSES
(ACRE-FEET)
0.00 0.00 0
2009

JAN
0.08
13.50
1.08
0.00 0
0
0,00
0.00 0.00
1.08
FEB 0.10 13.50 1.35 O.DO 0 0.00 0.00 1.35
MAR 0.13 13.50 1.76 0000 0 0.00 0.00 176
APR 0.24 13.50 3.24 0.00 0 0.00 0.00 3.24
MAY 0.31 1150 4.19 0.00 0 0.00 0.00 4.19
JUN 0.44 13.50 5.D4 0.00 0 0.00 0.00 5.94
JUL 0.45 9.79 4.41 0.00 0 0.00 26.90 31.31
AUG 0.42 2.00 0.84 0.00 0 0.00 26.90 27074
SEP 0.30 2.00 0.60 0.00 0 0.00 26.90 27.50
OCT 0.21 2.00 0.42 0.00 0 0.00 26.90 27.32
NOV 0.10 2 0.20 0.00 0 0.00 28.90 27.10
DEC 0.08 2.00 0.18 0.00 0 0.00 28.90 27.08
2009 TOTAL 2.86 N/A 24.19 0.D0 0 0.00 161.40 185.59
2010
JAN 0.08 2.00 0.18 0.00 0 0.00 28.90 27.06
FEB 0.10 2.00 0.20 0.00 0 0.00 26.90 27.10
MAR 0.13 2. 00 0.26 0.00 0 0.00 26.90 2716
APR 0.24 2.0 0.48 0.00 0 0.00 26490 27.38
MAY 0.31 1.00 0.31 0.00 0 0.00 26.90 27.21
JUN 0.44 1.00 0.44 0.00 0 0000 26.90 27.34
JUL 0.45 1.00 OAS 0.DO 0 0.00 26.90 27.35
AUG 0.42 1.00 0.42 0.00 0 O.DO 26.90 27.32
SEP 0.30 1.00 030 0.00 0 0.00 26.90 27.20
OCT 0.21 1.00 0.21 0.00 0 0.00 26.90 27011
NOV 0.10 1 0.10 0.15 45,000 0.66 26.90 27481
DEC 0.08 1.00 0.08 0.15 45,000 0.66 26.90 27.79
2010 TOTAL 2.86 N/A 3.41 0.30 90,000 1.32 322.80 327.83

0.08 1.00 0.08 OAS 45,000 0.66 25.90 27.79
0.10 1.00 0.10 0.15 45,000 0.66 26.90 27.81
0.13 1.00 0.13 0.15 45,000 0.66 26.90 27.84
0.24 1.00 0.24 0.15 45,000 0.66 26.90 27.95
0.31 1.00 0.31 0.15 45,000 0.66 26.90 28.02
7 0.44 1.00 0.44 0.15 45,000 0.66 26.90 28.15
0145 0400 0.00 0.00 0 0.00 0.00 0.00
AUG 0.42 0.00 0.00 O.DD 0 000 000 000
0.30 0.00 0.00 0.00 0 0.00 0.00 0.00
0.00 0.00 0.00 0 0.00
0.10 0.00 0.00 0 0.00 0.00 0.00
0.D8 0.00 0.00 0 000 0.00
2.86 WA 1.30 0.90 270,000 3.96 181.40 167.56
' Values going back through 2009 are sham for posterity and because of the small impact the depletions in later months of 2009 have on the depletions in 2010 and 2011.
2 The exposed ground water surface area in July of 2009 Was computed by taking the time weighted average of the exposed surface water area before and after mining began during this month.
NOTES:
(1) FROM TABLE 1
(2) BASED ON INFORMATION FROM OPERATOR
(3) COLUMN (1)' COLUMN (2)
(4) BASED ON INFORMATION FROM THE OPERATOR
(5) BASED ON INFORMATION FROM THE OPERATOR
(6) WATER LOSS = (COL 3) • 2000 LBS/rON' (2%)/(62.4 LBS/CU FTY43560 CU FT/ACRE-FOOT)
(7) DEPLETION DUE TO CONTINUOUS DEWATERING OF THE PIT
(8) TOTAL LOSSES = (COL 3)+ (COL 4) . (COL 6) - (COL 7)