2020-04-06_HYDROLOGY - M1977151

• Permit No: M1977151
• IBM Index Class Name: Hydrology
• Doc Date: 4/6/2020
• Doc Name: Substitute Water Supply Plan
• From: DWR
• To: DRMS
• Email Name: ECS
• Media Type: D
• Archive: No

I IIIIII
Table No.1 Cli u Applegate
R.M.Hiner Construction Co.,Inc.
Greeley Pit(M-1977-151) rGroup, Inc.
Gross Annual Evaporation= 45 inches per NOAA Technical Report NWS 33
Historical Consumptive Use Credit= 70% of monthly precipitation
Freezing Point of Water= 32 OF
Current Net Acreage Exposed= 31.6 acres
Date Revised: 3/3/2020
Evaporative Consumptive Use(aka Evap CU) AG Job#: 09-131
From Pond Surface
Month Net Exposed Percent of Gross Monthly Monthly Monthly Monthly Net Evap
Area Annual Evaporation Precip CU Credit Avg Temp Evap CU
[ac] Evaporation [in] [in] [in] [°F] [in] [ac-ft]
(A) (B) (C) (D) (E) (F) (G) (H)
Apr-20 31.6 9.0% 4.05 1.79 1.25 49.4 2.80 7.37
May-20 31.6 12.0% 5.40 2.45 1.72 58.6 3.69 9.70
Jun-20 31.6 14.5% 6.53 1.90 1.33 68.1 5.20 13.68
Jul-20 31.6 15.0% 6.75 1.48 1.04 73.8 5.71 15.05
Aug-20 31.6 13.5% 6.08 1.15 0.81 71.7 5.27 13.88
Sep-20 31.6 10.0% 4.50 1.11 0.78 63.0 3.72 9.80
Oct-20 31.6 7.0% 3.15 1.03 0.72 50.9 2.43 6.40
Nov-20 31.6 4.0% 1.80 0.78 0.55 37.5 1.25 3.30
Dec-20 31.6 3.0% 1.35 0.41 0.29 29.4 ICE 0.00
Jan-21 31.6 3.0% 1.35 0.48 0.34 28.6 ICE 0.00
Feb-21 31.6 3.5% 1.58 0.37 0.26 33.5 1.32 3.47
Mar-21 31.6 S.S% 2.48 1.07 0.75 41.1 1.73 4.55
Year 1 Total - 100% 45.00 14.02 9.81 - 33.11 87.19
Apr-21 31.6 9.0% 4.05 1.79 1.25 49.4 2.80 7.37
May-21 31.6 12.0% 5.40 2.45 1.72 58.6 3.69 9.70
Jun-21 31.6 14.5% 6.53 1.90 1.33 68.1 5.20 13.68
Jul-21 31.6 15.0% 6.75 1.48 1.04 73.8 5.71 15.05
Aug-21 31.6 13.5% 6.08 1.15 0.81 71.7 5.27 13.88
Sep-21 31.6 10.0% 4.50 1.11 0.78 63.0 3.72 9.80
Oct-21 31.6 7.0% 3.15 1.03 0.72 50.9 2.43 6.40
Nov-21 31.6 4.0% 1.80 0.78 0.55 37.5 1.25 3.30
Dec-21 31.6 3.0% 1.35 0.41 0.29 29.4 ICE 0.00
Jan-22 31.6 3.0% 1.35 0.48 0.34 28.6 ICE 0.00
Feb-22 31.6 3.5% 1.58 0.37 0.26 33.5 1.32 3.47
Mar-22 31.6 5.5% 2.48 1.07 0.75 41.1 1.73 4.55
Year 2 Total - 100% 45.00 14.02 9.81 - 33.11 87.19
Notes:
(A)Net exposed area requiring augmentation. Increases above the current value to account for additional exposure anticipated over the year
(B)Taken from General Guidelines for Substitute Water Supply Plans for Sand and Gravel Pits Submitted to the State Engineer for
elevations below 6500 ft MSL
(C)Gross monthly evaporation=(Gross Annual Evaporation)*(B)
(D)Monthly precipitation from GREELEY UNC,COLORADO(053553)weather station. Period of record is 1967 to 2005
(E)Monthly consumptive use credit=(Historical Consumptive Use Credit)*(D)
(F)Monthly average temperature from GREELEY UNC,COLORADO(053553)weather station. Period of record is 1967 to 2005
(G)Net evaporation=(C)-(E)if the monthly average temperature is greater than freezing. Otherwise,the pond is assumed to be frozen
(H)Evap CU=(A)*(G)/12
N:\09131 Rex Hiner-Greeley Pit SWSP\Disciplines(Tech nical)\WRPM\Water Rights\SWSP\2020 SWSP\Greeley Pit 2020 SWSP(2
year request)