2014-02-28_HYDROLOGY - M1977522

• Permit No: M1977522
• IBM Index Class Name: HYDROLOGY
• Doc Date: 2/28/2014
• Doc Name: Substitute water supply plan
• From: Division of Water Resources
• To: Parsons Water Consulting, LLC
• Email Name: ECS
• Media Type: D
• Archive: No

Mr. Rick Parsons, P.E.
L.G. Everist Combined SWSP
Page 3 of 10
February 27, 2014
In accordance with the letter dated April 30, 2010 (copy attached) from the Colorado Division of
Reclamation, Mining, and Safety ( "DRMS "), all sand and gravel mining operators must comply with the
requirements of the Colorado Reclamation Act and the Mineral Rules and Regulations for the protection of
water resources. The April 30, 2010 letter from DRMS requires that you provide information to DRMS to
demonstrate you can replace long term injurious stream depletions that result from mining related exposure
of ground water. The operator intends to comply with this requirement by providing bonds sufficient to line
or backfill the pits in accordance with approaches nos. 1 and 3. One share each of the Rural Ditch and
Lupton Bottom Ditch has been dedicated to this plan as sufficient bonding is not yet in place. Future
SWSPs for this site will not authorize any additional use of ground water until the Applicant provides
documentation that a bond sufficient to cover lining or backfilling of each pit has been obtained. The current
bond amount for each pit is shown in Table C below.
TABLE C - DRMS Bonding
Site Name
DRMS #
Bond Amount
Notes
Carbon Valley Pit
M- 2001 -017
$665,800
Site Name
Rinn Valley Pit
M- 1997 -093
$114,700
Production
Firestone Pit
M- 1996 -052
$509,900
(ac -ft)
Fort Lupton Sand and
Gravel
M- 1999 -120
$2,002 400.00
Bond amount changed with the inclusion of
the Lupton Meadows site
Star Water Resources
M- 1977 -522
$103,754
2015
Depletions
The depletions resulting from evaporation, water lost in product, dust control and concrete
production are shown in Table D below:
TABLE D - DEPLETION SUMMARY
* Based on 85,000 tons of concrete production and 50 gallons of water per ton of concrete
* ** The total net depletions include accretions credits or depletions from dewatering. The total net depletions for 2014 and 2015
for all pits were taken from Tables 6, 7, 8, 9, 10, 11, 12, 13 and 14 (attached)
Evaporation
Product
Dust Control
Concrete
Total
Total Net
Site Name
Loss
Moisture Loss
(ac -ft)
Production
Depletions
Depletions * **
(ac -ft)
(ac -ft)
(ac -ft
(ac -ft)
(ac -ft)
2014
2015
2014
2015
2014
2015
2014
2015
2014
2015
2014
2015
Carbon Valley
Pit
10.0
10.0
2.21
2.94
1.0
1.0
0.0
0.0
13.2
13.9
6.89
10.42
Rinn Valley Pit
14.1
14.1
15.89
15.89
1.0
1.0
13.0*
13.0*
44.1
44.1
58.04
44.24
Firestone Pit
17.3
17.3
5.15
11.77
1.0
1.0
0.0
0.0
23.4
30.1
24.18
29.47
¢- = =- St. Vrain Creelclet'Deplettons
485. 6`-
..� ;; __ _ - _= �_s x-
n660
Fort Lupton Pit
11.4
11.4
41.94
45.62
1.0
1.0
0.0
0.0
54.34
58.02
53.67
57.43
Lupton
Meadows Pit
17.9
17.9
0.0
0.0
1.0
1.0
0.0
0.0
18.9
18.9
20.59
18.99
, -f, Soufihattervr
Net
X74 26
�62
_
etions
cs.avR-
Star Water
Resources
2.82
2.82
0.0
0.0
1.0 1.0
0.0
0.0
3.82
3.82
7.86
3.90
-
zA�
* Based on 85,000 tons of concrete production and 50 gallons of water per ton of concrete
* ** The total net depletions include accretions credits or depletions from dewatering. The total net depletions for 2014 and 2015
for all pits were taken from Tables 6, 7, 8, 9, 10, 11, 12, 13 and 14 (attached)