20201021_Water_Balance_Cals

Prospect Hill Quarry Water Balance
Water Usage
Gallons/Day
Gallons/Month
Gallons/Year
% Process Loss
Gallons
Loss/Day
Gallons
Loss/Month
Gallons
Loss/Year
Aggregates Process facility
2,100,000
54,600,000
655,200,000
20%
420,000
10,920,000
131,040,000
Dust Suppression
9,000
234,000
2,808,000
100%
9,000
234,000
2,808,000
misc.
6,000
156,000
1,872,000
100%
6,000
156,000
1,872,000
Totals
2,115,000
54,990,000
659,880,000
-
435,000
11,310,000
135,720,000
Water Inputs
Stormwater Drainage
ft./day
Gallons/day
Gallons/Month
Gallons/Year
Groundwater Inflow Pit A 150'*
-
-
134,702
4,097,186
49,166,230
Groundwater Inflow Pit A 300'*
-
237,160
7,213,617
86,563,400
Groundwater Inflow Pit B 150'*
-
114,169
3,472,640
41,671,685
Groundwater Inflow Pit B 300'*
302,690
9,206,821
110,481,850
Mean Annual Rainfall PIT A**
1,829,083
0.011
145,572
4,427,805
53,133,664
Mean Annual Rainfall PIT B ***
3,613,925
0.011
287,622
8,748,515
104,982,179
Totals
5,443,007
1,221,915
37,166,584
1 445,999,008
Water Balance Pit A
Gallons/day Gallons/Month Gallons/Year
Total Process Loss
435,000
11,310,000
135,720,000
Water Inputs 150'depth
280,274
8,524,991
102,299,894
Water Inputs 300' depth
382,732
11,641,422
139,697,064
Remaining Excess Water @150'
-154,726
-2,785,009
(33,420,106)
Remaining Excess Water @300'
-52,268
331,422
3,977,064
Water Balance Pit B****
Gallons/day Gallons/Month Gallons/Year
Total Process Loss
435,000
11,310,000
135,720,000
Water Inputs 150'Depth
401,791
12,221,155
146,653,864
Water Inputs 300' Depth
590,312
17,95,5,336
215,464,029
Remaining Excess Water @150'
-33,209
911, 155
10,933,864
Remaining Excess Water @300'
155,312
6,645,336
79,744,029
Notes:
* Gallons per day documented with the groundwater study
** Pit A at Max Design Extent
*** Pit B at Max Design Extent
**** Pit B Groundwater and Stormwater Inflows to be pumped to Pit A
Pit A capacity (gal) 1,879,688,352 324,333,295 post equilibrium
Water Storage Capacity
Pond
Capacity (gal)
Surface Area
(sgft)
Annual
Evaporation (ft.)
Gallons
Loss/Day
Gallons
Loss/Month
Gallons
Loss/Year
Settling Ponds
705,488
15,718
2.5
805
24,496
293,953
Plant Water Pond
1,447,000
31,862
2.5
1,632
49,655
595,858
Plant Make -Up Water Pond -A
2,574,947
43,324
2.5
2,220
67,517
810,209
Plant Make -Up Water Pond-B
27,801,126
406,355
2.5
20,820
633,281
7,599,366
Plant Make -Up Water Pond-C
6,868,167
185,945
2.5
9,527
289:784
3,477,404
Total
39,396,728
1 -
-
35,005
1 1,064,733
12,776,790
Storage
Remaining
Total Process(gal/day)
Total Process
Total Process
Total Process
Total Process
Total Process
Excess Water
Excess Water
Excess Water
Total Storage
Capacity
Capacity
(gal/Mo)
(gal/yr.)
Loss (gal/day)
Loss (gal/Mo)
Loss (gal/yr.)
(gal/day)
(gal/Mo)
(gal/yr.)
Capacity (gal)
Remaining
Balance for
(gal/year)
evaporation
Pit @ 150'
2,115,000
54,990,000
659,880,000
435,000
11,310,000
135,720,000
-154,726
-2,785,009
-33,420,106
39,396,728
72,816,834
85,593,624
Pit A @ 300'
-52,268
331,422
3,977,064
39,396,728
35,419,664
48,196,454
Pit @ 150'
2,115,000
54,990,000
659,880,000
435,000
11,310,000
135,720,000
-33,209
911,155
10,933,864
39,396,728
28,462,864
41,239,654
Pit B @ 300'
155,312
1 6,645,336
1 79,744,029
1 39,396,728
1 (40,347,301)
1 (27,570,511)