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2003-05-29_REVISION - M1999034 (2)
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2003-05-29_REVISION - M1999034 (2)
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Entry Properties
Last modified
6/15/2021 2:52:10 PM
Creation date
11/21/2007 6:35:47 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1999034
IBM Index Class Name
Revision
Doc Date
5/29/2003
Doc Name
Karen Topper Letter
From
DMG
To
ADCO Consulting Inc.
Type & Sequence
AM1
Media Type
D
Archive
No
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'" '' Aggnegax Indusaies - WCR, Inc. <br />Awendment No.l - Jemnimw Propotty <br />Permit # M-99-034 <br />Upon the recommendation of the Water Quality Control Division, I request that the Division of <br />Minerals and Geology request asite-specific review of the applicant's discharge permit from the <br />Water Quality Control Division for consideration ofpast, current, and potential future ground- <br />water contamination from organic chemicals attributed to historical waste disposal practices at <br />the Rocky Mountain Arsenal According to the Tri-County Heahh Department, the majority of <br />oflpost contamnation is found in the shallow, unconfined aquifer into which tbe applicant will <br />be mining. The Henderson area, among others, was identified as containing high levels of <br />d'tisopropyhnethylphosphonate (DIMP), a chemical unique to the Atvty's manufacture of GB <br />nerve gas, or satin. This class ofsemi-volatile organic compounds, though sotrnewhat soluble, <br />leads to adsorb on soil particles. Given the known contaminant plume in this area, excavation <br />activities associated with removal of aggregate materials within the zone of water table <br />fluctuation will remobilize contaminants that had adsorbed on the subsurface aquvial materials. <br />This remobilization can produce an immediate threat to human health by ingestion of <br />contaminated drinking water supplies. The potential heahh impacts associated with <br />remobilization of known contaminants in this area has not been reviewed by the Water Quality <br />Control Division I request that the Division of Minerals and Geology request such a review <br />from the Water Quality Control Division prior to making a recommendation on this mining <br />application. <br /> <br />Karen Topper <br />Cc: Diana Glaser,WQCD <br />
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