2003-07-09_REVISION - M1992069 ‎(2)‎

• Permit No: M1992069
• IBM Index Class Name: Revision
• Doc Date: 7/9/2003
• From: DMG
• To: Aggregate Industries
• Type & Sequence: TR4
• Media Type: D
• Archive: No

1
~1
STATE OF COLORADO
DIVIiION OF MINERALS AND GEOLOGY
Department of Natural Resources
137 3 Sherman St., Room 215
Denver, Colorado 80203 DIVISION O F
Phone; {303) 666-3567 M I N E AA L S
FAX: [phone] &
GEOLOGY
November 22, 2002 R E C L A M A T I O N
MINING•SAFETY
Bill Owens
Connie Nickle Davis cOVef°°r
Su rt Services Greg E. Walther
PPo &ecutlve Dinror
Aggregate Industsies Rorwtd w. Gnany
P.O. Box 337231 Acting Division Director
Greeley, CO 80633
RE: Permit M-1992-069 83`B Joint Venture Pit, Aggregate Industries TR-003
Dear Ms. Davis,
The Division of Minerals and Geology (DMG) is in receipt of your letter dated November t 1,
2002, requesting that no further abatement activity be required in reference to Technical Revision
(TR) 003. The original TR indicated that Aggregate Industries would excavate the remainder of
contaminated soils resulting from the diesel oil spill prior to cessation of dewatering activities at
the site. Despite the statements in Paragon's July 6, 2001 Groundwater Abatement Report, the
Division continues to have concerns that groundwater may become contaminated once
dewatering activities cease and the groundwater level rebounds. Therefore, the Division will
conpnue to require Aggregate Industries to excavate the remaining contaminated soil prior to
cessation of dewatering at the site. Alternatively, Aggregate Industries can submit a new TR to
the Division outlining a continued ground water monitoring plan to monitor the groundwater
quality in the vicinity of the spill area after cessation of dewatering at the site.
If you have any further questions regarding this information, please do not hesitate to contact me
at [phone].
Sincerely,
~~~.,,~~
Kate Pickford
Environmental Protection Specialist
cc: Carl Mount; DMG
Scott Rutherford; Paragon Consulting Group