2012-03-14_HYDROLOGY - M1977436

• Permit No: M1977436
• IBM Index Class Name: HYDROLOGY
• Doc Date: 3/14/2012
• Doc Name: COMBINED WATER REPLACEMENT PLAN
• From: DWR
• To: APPLEGATE GROUP
• Email Name: BMK
• Media Type: D
• Archive: No

Site Name
Evaporation
(ac -ft)
Lost in Product
(ac -ft)
Dust
Control
(ac -ft)
Concrete
Batch
(ac -ft)
Total
(ac -ft)
Net Dewatering
Affect - Lagged
Depletions ( +),
Accretions ( -)
(ac -ft)
Total Lagged
Depletions
(ac -ft)
Teti Pit
19.94
0.00
0.00
0.00
19.94
0.00
19.94
North Dahlia Pit
9.04
0.00
0.00
0.00
9.04
0.00
9.07
Jeronimus Pit
20.63
0.00
0.00
0.00
20.63
0.00
21.91
Hazeltine Pit
15.00
26.49
(900,000 tons)
1.98
0.00
43.47
-83.35
-44.89
Brighton Pit
30.08
0.00
1.98
0.00
32.06
20.97
59.78
Tucson South Pit
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Tucson Pit
5.47
0.00
0.00
0.00
5.64
9.87
15.50
Wattenberg Pit
46.87
0.00
0.00
0.00
46.87
0.00
46.51
Platte Valley Pit
208.92
0.00
1.98
0.00
210.90
0.00
210.65
Distel Pit
0*
0.00
1.98
0.00
1.98
0.51
3.56
Tull Pit
0.00
0.00
0.00
0.00
0.00
0.00
0.00
W.W. Farms Pit
196.72
0.00
1.98
0.00
198.70
43.83
233.34
F- Street Pit
71.79
0.00
0.00
0.00
71.79
0.00
72.51
East 8th Street Pit
16.97
0.00
0.0
0.00
16.97
11.98
28.58
Total
677.99
676.46
Jared Dains
South Platte Combined Replacement Plan
March 14, 2012
Table C - Depletion Summa
Page 5
Depletions
The depletions resulting from evaporation, water lost in product, dust control and concrete
batching are shown in Table C below:
*Evaporation is paid by City of Longmont under separate SWSP in conjunction with water court case no 09CW271
A stream depletion model using either the Glover method, or Stream Depletion Factor (SDF)
method was used to calculate the lagged depletions to the river. The Glover method uses four
aquifer input parameters for each site as follows: 1) X - distance (ft) from centroid of exposed
ground water to river, 2) W- distance (ft) from the aquifer boundary through the well to the river
channel, 3) T- transmissivity of the alluvial aquifer (in gallons per foot/day) between the well and the
river, and 4) S- specific yield - 0.2 was used for all wells. The parameters used in the model for
each site are listed on the next page in Table D.