2015-09-22_HYDROLOGY - M1980110

• Permit No: M1980110
• IBM Index Class Name: HYDROLOGY
• Doc Date: 9/22/2015
• Doc Name: Sub Water Supply Plan
• From: DWR
• To: DRMS
• Email Name: TOD
• Media Type: D
• Archive: No

Table 2
E470 Public Highway Authority
Sandy Acres Pit SWSP Water Accounting
Notes:
(1) Exposed water surface area at the Sandy Acres Pit Placeholder values will be replaced with actual values Note that the projected exposed surface
area is zero after September 2016 based on estimated completion date for ongoing backfilling operation
(2) Net pond evaporation equal to net evaporation rate from Table I (column 5, feet) multiplied by total exposed pond surface area (column 1). Note
that evaporation is assumed to equal zero in December and January because the average daily temperature at the Brighton 1 NE, CO (ID
#USC00050950) NOAA weather station is below freezing.
(3) Lagged depletions from pond evaporation occurring prior to and during the plan year Lagging based on IDS AW AS Glover Analysis using the
following parameters* T = 78.729 gallons/day/foot, S = 0 2, W = 12,172 6 feet, X = 3,173.4 feet. All ftiture lagged evaporation depletions arc
accounted for within 9 years based on over 95% of al l depletions accruing within that a neframc
(4) Filly -consumable sewercd return Flows leased from Central Colo WCD (released from MW WTP) per contract dated September 22, 2014
(5) Fully -consumable sewercd return flows leased from City of Aurora (released from M W WTP) per IGA executed June 30. 2015 Starting in
November 2015, the leased amounts are reduced from the amounts stated in the original IGA. These reduced amounts will be requested by October
1, 2015, per the IGA agreement.
(6) Equal to (4)+(5)
(7) Transit loss is equal to 0 5% per mule Distance from M W WTP to Sandy Acres depletion point is 11 5 miles
(8) Net effect to river is equal to lagged depletions (3) +replacement supply (6)+transit loss (7)
Sandy Acres S WSP Cales xlsx
BBA v T2 -Water Aect (full)
+.,dui+ An mop aa,n.niw a. Page 3 ora 8/14/2015
Total
Total Net
Total Net
Re lacement Supplies (ac -ft)
Leased
Leased
Total
Exposed
Pond
Lagged Pond
Transit Loss
Pond Surface
Evaporation
Evap Depletion
from
from
Replacement
from M W WTP
Net Effect to River
Month
Area (ac)
(ac -ft)
(ac -ft)
Central
Aurora
Supplies
(ac -ft)
(ac -ft)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
Oct -23
0
0
-041
044
0.44
-0.03
000
Nov -23
0
0
-0.40
0.43
0.43
-002
0.01
Dec -23
0
0
-039
042
042
-002
001
Jan -24
0
0
-038
041
0.41
-002
0.01
Feb -24
0
0
-0.37
0.40
040
-0.02
0.01
Mar -24
0
0
-036
039
0.39
-002
0.01
Apr -24
0
0
-035
038
038
-0.02
0.01
May -24
0
0
-0.35
038
0.38
-002
0.01
Jun -24
0
0
-0.34
037
037
-002
0.01
Jul -24
0
0
-033
0.36
036
-002
001
Aug -24
0
0
-032
0.34
0.34
-0.02
0.00
Sep -24
0
10
-0.31
0.33
0.33
-0.02
0.00
PY2016
70.10
-85.64
0
90.96
90.96
-5.23
0.09
Total
158.52
-325.38
55.25
1 291.56
346.81
-19.94
1.48
Notes:
(1) Exposed water surface area at the Sandy Acres Pit Placeholder values will be replaced with actual values Note that the projected exposed surface
area is zero after September 2016 based on estimated completion date for ongoing backfilling operation
(2) Net pond evaporation equal to net evaporation rate from Table I (column 5, feet) multiplied by total exposed pond surface area (column 1). Note
that evaporation is assumed to equal zero in December and January because the average daily temperature at the Brighton 1 NE, CO (ID
#USC00050950) NOAA weather station is below freezing.
(3) Lagged depletions from pond evaporation occurring prior to and during the plan year Lagging based on IDS AW AS Glover Analysis using the
following parameters* T = 78.729 gallons/day/foot, S = 0 2, W = 12,172 6 feet, X = 3,173.4 feet. All ftiture lagged evaporation depletions arc
accounted for within 9 years based on over 95% of al l depletions accruing within that a neframc
(4) Filly -consumable sewercd return Flows leased from Central Colo WCD (released from MW WTP) per contract dated September 22, 2014
(5) Fully -consumable sewercd return flows leased from City of Aurora (released from M W WTP) per IGA executed June 30. 2015 Starting in
November 2015, the leased amounts are reduced from the amounts stated in the original IGA. These reduced amounts will be requested by October
1, 2015, per the IGA agreement.
(6) Equal to (4)+(5)
(7) Transit loss is equal to 0 5% per mule Distance from M W WTP to Sandy Acres depletion point is 11 5 miles
(8) Net effect to river is equal to lagged depletions (3) +replacement supply (6)+transit loss (7)
Sandy Acres S WSP Cales xlsx
BBA v T2 -Water Aect (full)
+.,dui+ An mop aa,n.niw a. Page 3 ora 8/14/2015