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2012-02-03_HYDROLOGY - M1983090
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2012-02-03_HYDROLOGY - M1983090
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Last modified
8/24/2016 4:48:21 PM
Creation date
2/8/2012 10:58:36 AM
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Template:
DRMS Permit Index
Permit No
M1983090
IBM Index Class Name
HYDROLOGY
Doc Date
2/3/2012
Doc Name
SWSP
From
OSE
To
Civil Resources, LLC
Permit Index Doc Type
Hydrology Report
Email Name
ECS
Media Type
D
Archive
No
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Site Name <br />Evaporation <br />Losses <br />(ac -ft) <br />Product <br />Moisture <br />Loss <br />(ac -ft) <br />Water Consumed <br />in Concrete <br />Batching <br />(ac ft) <br />Dust <br />Control <br />(ac -ft) <br />Post <br />Pumping <br />(ac -ft) <br />Total <br />(ac -ft) <br />Firestein/Tigges/ <br />Roberts Pit <br />82 47 <br />0.00 <br />5.83 <br />(47,500 cubic <br />yards) <br />1.66 <br />42.22- <br />132.18 <br />La Poudre Pit <br />61.28 <br />0.00 <br />5.83 <br />(47,500 cubic <br />yards) <br />1.66 <br />10.14 <br />107.26 <br />North La Poudre <br />Pit <br />26.87 <br />0.00 <br />1.48 <br />Total <br />170.62 <br />0.00 <br />11.66 <br />3.32 <br />53.84 <br />239.44 <br />Site Name <br />Evaporation <br />Losses <br />(ac -ft) <br />Product <br />Moisture <br />Loss <br />(ac ft) <br />Water Consumed <br />in Concrete <br />Batching <br />(ac ft) <br />Dust <br />Control <br />(ac ft) <br />Post <br />Pumping <br />(ac ft) <br />Total <br />(ac -ft) <br />Firestein/Tigges/ <br />Roberts Pit <br />106.01 <br />2.65 <br />5.90 <br />(47,500 cubic <br />yards) <br />1.66 <br />34.82 <br />151.04 <br />La Poudre Pit <br />75.76 <br />0.00 <br />5.90 <br />(47,500 cubic <br />yards) <br />1.66 <br />8.92 <br />126.50 <br />North La Poudre <br />Pit <br />33.00 <br />0.00 <br />1.26 <br />Total <br />214.77 <br />2.65 <br />11.80 <br />3.32 <br />45.00 <br />277.54 <br />Page 6 <br />Mr. Andy Rodriguez <br />Poudre Pits Aggregate Mine SWSP <br />January 26, 2012 <br />Depletions <br />The depletions resulting from evaporation, water lost in product, concrete batching, dust control, <br />and post pumping depletions from past dewatering activities are shown in Table B below: <br />TABLE B1 - 2011 DEPLETIONS <br />TABLE B2 - 2012 DEPLETIONS <br />The Firestein/Tigges /Roberts Aggregate Mine is comprised of three adjacent properties; the <br />Firestein, Tigges and Roberts parcels. Based on the information provided, the exposed water surface <br />area at the Firestein /Tigges /Roberts site totals 44.29 acres. Mining of the Roberts Pit was completed in <br />May 2006 and the pit has been reclaimed and a plan for augmentation was approved in case no. <br />2002CW331. In 2011, the only operations at the Firestein/Tigges site that consumed ground water was <br />dust control using 1.66 acre -feet and concrete batching which used 5.83 acre -feet. It is anticipated that <br />operations at the Firestein/Tigges during 2012 will consume 1.66 acre -feet of water for dust control, 5.90 <br />acre -feet of water with the production of 47,500 cubic yards of concrete, and 2.65 acre -feet of water lost <br />with 90,000 tons of washed product (assessed a 4% by weight water loss). Dewatering operations at <br />the Firestein Pit ceased in 2001 and have an estimated lagged impact of 4.75 acre feet during 2012. <br />Dewatering operations at the Roberts Pit ceased in 2006 and have an estimated lagged impact of 30.07 <br />acre -feet during 2012. Dewatering operations at the Tigges Pit are ongoing and have a projected <br />lagged credit of 111.61 acre -feet during 2012. <br />
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