2001-10-15_REVISION - M1992069

• Permit No: M1992069
• IBM Index Class Name: Revision
• Doc Date: 10/15/2001
• Doc Name: PN M-1992-069 83RD JOINT VENTURE PIT AGGREGATE INDUSTRIES DIESEL FUEL RELEASE
• From: DMG
• To: AGGREGATE INDUSTRIES
• Type & Sequence: TR3
• Media Type: D
• Archive: No

DIVISION OF MINERALS AND GEOLOGY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
October 15, 2001
Connie Davis
Aggregate Industries
P.O. Box 3121
Greeley, CO 80633
RE: Permit M-1992-069 83rd Joint Venture Pit, Aggregate Industries Diesel Fuel Release
Dear Ms. Davis,
DIVISION OF
MINERALS
GEOLOGY
RECLAMATION
MINING•SAFETY
Bill Os.'ens
Governor
Greg E. Walther
Executive Director
Michael B. Long
Division Director
The Division of Minerals and Geology (DMG) conducted an inspection on September 20, 2001st
the 83rd Joint Venture Pit, located in Weld County at 4509 F Street, Greeley, Colorado in
response to a report from Colorado Division of Public Health and the Environment (CDPHE) [hat
a diesel fuel leak had occurred on the site sometime between mid-March and the end of April of
2001. Additional information concerning remediation was presented to the DMG in the form of a
report, Soil and Groundwater Abatement Renort Aeere~ate Industries F Street Facility, 4509 F
Street. Greeley, Colorado, composed by the Paragon Consulting Group, and documenting the
remediation work completed at the site as of July 6, 2001.
The Paragon Report indicated that soil samples collected during abatement excavation indicated
detectable levels of BTEX and TEPH along some of the excavation boundaries. The boundaries
of the abatement excavation were set according to recommendations made by the Paragon Group.
It is anticipated that during subsequent extraction activities, all of the remaining contaminated soil
will be excavated.
Despite the abatement activities that have already been accomplished by Aggregate industries,
[here is still concern that contaminants may be migrating from the release location. The goals of
the DMG involving the situation at the 83`d Joint Venture Pit are:
to ensure that no contaminated groundwater is ultimately discharged into the nearby Poudre
River,
• to ensure that no contaminated groundwater migrates off the site,
• and to make certain that adequate practices aze incorporated to assure that a similar incident
does not occur.
r~-r_n -rr_ _~t COLOI~DO
~~~ IIIIIIIIIIIIIIII L~
In order to achieve these goals, the DMG is requiring Aggregate Industries to submit a technical
revision to permit M-1992-069 by October 31, 2001. Issues this technical revision must address
include: