HYDRO24212

• Permit No: M1997054
• IBM Index Class Name: Hydrology
• Doc Date: 7/13/2007
• Doc Name: Subsitute Water Supply Plan
• From: OSE
• To: Applegate Group, Inc.
• Media Type: D
• Archive: No

REGEIVrtt

Table-1
Frost Range Aggregates, LLC
Parkdale Project M-97-054
Substitute Supply Plan -Evaporative Losses
Applegate
Group. too.
Prepared By: Michelle Austin
Date: August 9, 2006
lob #: OS-l29
(U (2) (3) (4) {5) (6)

Month Percent of
Annual
Evaporation Gross Lake
Evaporation
(ft)
Preciptation
(in) Effective
Predptation
(ft) Net Lake
Evaporation
(acre-ft/acre) Total Lake
Evaporatton
(ac-ft)
Apr 9.0% 0.35 1.36 0.06 0.27 0.16
Ma 12.0°~ 0.46 1.64 0.10 0.36 0.2Z
June 14.5°'0 0.56 1.23 0.07 0.48 0.29
July 15.0% 0.58 1.82 0.11 0.47 0.28
Aug 13.5°h 0.52 1.92 0.11 0.41 0.25
Sept 10.0% 0.38 1.01 0.06 0.32 0.20
Oct 7.0% 0.27 0.82 0.05 0.22 0.13
Nov 4,0°~ 0.15 0.66 0.04 0.11 0.07
Dec 3.0% 0,12 0,43 0.03 0.09 0.05
Jan 3.09'0 0.12 0.40 0.02 0.09 0.06
Feb 3.5% 0.13 0.43 0.03 0.11 0.07
Mar 5.5% 0.21 0,97 0.06 0.15 0.09
Total 100% 3.83 12.69 0.74 3.09 1.88
Exposed Water Surface = 0.6 BCreS -3 setaeng ponds arrd a gravel washing pond
Annual Precipitation = 12.7 inches -Takrn rrom watcrn Reg;oml Climate center -
Gross Annual Evaporation = 46 1nClteB -Takrn from NOAA Tmhnicel Report NWS 33
Notes
(q Takrn from State Engineers Guidelines fm (navel Pits at ulevations 6cbw 6506 leer.
(2) Takm from NOAA Technical Report NW 813 Nap 1 and distributed monthly aecoNing to Percent otAnnual Lraporabon (1 ).
(3) Pmm Wcstem Regional Climate Cemer Canon Ciry station #51294 (1948.2003).
(4) Effective Precipitation equals 71P.~. of Average Annual Precipitation, 70% • (3).
(5) Gross Evaporation minus ERective Praiyiration converted to unite of feel, (2) • (4).
(6) Total Evaporative Loss is the prMucr of Net F.vapomrion (5) and Gxp°sed K'a[er Surface.