2011-03-31_HYDROLOGY - M1978327

• Permit No: M1978327
• IBM Index Class Name: HYDROLOGY
• Doc Date: 3/31/2011
• Doc Name: Substitute Water Supply Plan
• From: Applegate Group, Inc.
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: ECS
• Email Name: AJW
• Media Type: D
• Archive: No

Table No. 1
Kauffman #1 Pit
Jake Kauffman and Son, Inc.
Applegate
Group, Inc.
10126110
Job No. 05-149
Evanorative Losses

Month Percent of

Annual
Evaporation Gross Lake

Evaporation
(ft)
(BY:

Precipitation
(In) Effective

Precipitation
(ft) Net Lake

Evaporation
(ft)! Total Lake

Evaporation
(ac=ft)
A0
Jan-11 3.0% 0.10 0.51 0.03 0.07 0.41
Feb-11 3.5% 0.11 0.48 0.03 0.08 0.52
Mar-11 5.5% 0.17 1.40 0.08 0.09 0.58
Apr-11 9.0% 0.29 1.65 0.10 0.19 1.19
May-11 12.0% 0.38 2.28 0.13 0.25 1.56
Jun-11 14.5% 0.46 1.91 0.11 0.35 2.19
Jul-11 15.0% 0.48 1.50 0.09 0.39 2.44
Aug-11 13.5% 0.43 1.38 0.08 0.35 2.19
Sep-11 10.0% 0.32 1.76 0.10 0.21 1.35
Oct-11 7.0% 0.22 0.78 0.05 0.18 1.11
Nov-11 4.0% 0.13 0.82 0.05 0.08 0.50
Dec-11 3.0% 0.10 0.28 0.02 0.08 0.50
Total 1090/0 3.17 14..75 0:86 2.,31 14.53

Gross LEGEND:
(A) Percent of annual evaporation from SEO guidelines for elevations < 6,500 feet
(B) Gross lake evaporation, (B) = (A) * [gross annual evaporation/12] - Taken from NOAA Technical Report NWS 33
(C) Precipitation data from NCWCD Weather Station
(D) Effective precipitation, (D) = [(C)/12] * 70%
(E) Net lake evaporation, (E) = (B) - (D)
(F) Total lake evaporation, (F) = (E) * exposed surface area
Exposed Water Surface = 42.5 acres
Pre-1981 Water Surface = 36.2 acres
Net Lake Surface = °'r`6;3`:: `:' acres
Annual Precipitation = 14.75 in/yr
Annual Evaporation = 38 in/yr
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