2022-12-20_HYDROLOGY - M2001085

• Permit No: M2001085
• IBM Index Class Name: Hydrology
• Doc Date: 12/20/2022
• Doc Name: Substitute Water Supply Plan
• From: Water Resources
• To: DRMS
• Email Name: NCG
• Email Name: AME
• Media Type: D
• Archive: No

TABLE 1
GSL SAND AND GRAVEL MINE
(1) (2) (3) (4) (5) (6)
PERCENT OF
ANNUAL NORMAL EFFECTIVE
GROSS GROSS PRECIPITATION PRECIPITATION NET NET
MONTH EVAPORATION EVAPORATION (DENVER STAPLETON) (@ 70%) EVAPORATION EVAPORATION
(%) (INCHES) (INCHES) (INCHES) (INCHES) (FEET)
JAN 3.0 1.35 0.50 0.35 1.00 0.08
FEB 3.5 1.58 0.57 0.40 1.18 0.10
MAR 5.5 2.48 1.28 0.90 1.58 0.13
APR 9.0 4.05 1.71 1.20 2.85 0.24
MAY 12.0 5.40 2.40 1.68 3.72 0.31
JUN 14.5 6.53 1.79 1.25 5.28 0.44
JUL 15.0 6.75 1.91 1.34 5.41 0.45
AUG 13.5 6.08 1.51 1.06 5.02 0.42
SEP 10.0 4.50 1.24 0.87 3.63 0.30
OCT 7.0 3.15 0.98 0.69 2.46 0.21
NOV 4.0 1.80 0.87 0.61 1.19 0.10
DEC 1 3.0 1 1.35 1 0.64 1 0.45 1 0.90 1 0.08
TOTAL 1 100.00 1 45.02 1 15.40 10.80 34.22 2.86
NOTES: (1)FROM SEO O5/11/99 FOR ELEVATIONS UNDER 6,500 FEET
(2)PERCENT OF ANNUAL GROSS EVAPORATION MULTIPLIED BY 45.00 INCHES
(3)FROM DENVER STAPLETON STATION
(4)EFFECTIVE PRECIPITATION=(NORMAL PRECIPITATION,COLUMN 3)-(70%)
(5)NET EVAPORATION=(GROSS EVAPORATION,COLUMN 2)-(EFFECTIVE PRECIPITATION,COLUMN 4)
(6)NET EVAPORATION(FEET)_(NET EVAPORATION(INCHES),COLUMN 5)/12
Martin and Wood Water Consultants, Inc.
Job No. 762.2
10/14/2022 4:06 PM