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APPCOR11783
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APPCOR11783
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Last modified
8/24/2016 6:32:06 PM
Creation date
11/19/2007 2:24:13 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981038
IBM Index Class Name
Application Correspondence
Doc Name
RESPONCE TO EPA COMMENTS & REQUESTS FOR INFORMATION ORCHARD VLY MINE
From
COLO WESTMORELAND INC
To
AREA MINING SUPERVISOR & ENVIRONMENTAL PROTECTION AGENCY
Media Type
D
Archive
No
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I I~ <br />• • <br />(13) <br />r <br />All OSM water quality reporting requirements will be followed. <br />Since there is no water in the mine, (;round water pollution <br />is not expected to Ue a problem. CWI plans to monitor two'we11s <br />in Stevens Gulch.. The first well will be in the CWlwell. €ield <br />upstream of the mine. 1'he second will he located just ups'~tream <br />from the Fire t4ountain Canal - a location downstream from the <br />mine. Pumped samples will be taken from these wells on a seasonal <br />basis. These samples will be analyzed for toxicity, heavy metals, <br />and general water chemistry. Should any groundwater pollution <br />problems be encountered, CWI will take appropriate mitigating <br />measures. As stated earlier, the water resources inventory and <br />ground water monitoring program were discussed in the mining plan. <br />3. Noise Monitoring, CWI'S noise monitoring program is included <br />within the purview of Subsection 4.5.1.9 of the mining o1an. A noise <br />monitoring program is required by subsection (d) of the specific <br />lease stipulations. T11is lease stipulation was inserted in response to <br />EPA's comments to the draft EAR. After learning of EPA's objections <br />to CWI's then existing noise data base, the company asked its noise <br />consultant to design a noise monitoring effort to satisfylEPA. A <br />description of this program is included in Appendix M of [he final <br />EAR. The actual monitoring and noise mitigation program which CWI <br />is implementing is contained on page IV-5 and 6 of the final EAR. <br />This description reads as folLuws: <br />In order to ensure compliance with the Environmental, Protection <br />Agency (EYA) noise regulations and guidelines, CWI will <br />i <br />~u ~~ ~~~i~ i ~~ ~~~ i J,~~ ~ <br />:~ <br />
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