HYDRO25658

• Permit No: M1980233
• IBM Index Class Name: Hydrology
• Doc Date: 10/31/1997
• Doc Name: LANDFILL PIT PN M-80-233 PERMIT CONDITIONS FOR GROUNDWATER
• From: DMG
• To: COSTILLA CNTY
• Media Type: D
• Archive: No

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STATE ~ COLORADO
DIVISION OF MINERALS AND GEOLOGY
Depanmenr of Natural Resources
1311 Sherman SL, Room 215 l+y~~
Denver, Colorado RO?O7 II
Phunc: (30 f I R55-5557
FAX: 13031 R3?-8106
DEPARTtvIENT OF
NATURAL
RESOURCES
Ruy Romrr
Governor
lames 5. Lo~hhead
Execuuve Dvenor
Mir.hael B. Lund;
Division Direnor
October 31, 1997
Mr. Floyd Espinosa, Chairman
Costilla County Board of Commissioners
P.O. Box 100
San Luis, CO 81152
RE: Landfill Pit (Permit M-80-233) Permit conditions for groundwater
Dear Mr. Espinosa:
On October 16, 1997, the Division received the Greystone report of the results of the ground
water sampling conducted at the Landfill Pit on August 28, 1997, ie. sampling during the third
calender quarter of 1997. This letter is to remind you that, as a result of the approval of
Technical Revision 2 for the Landfill Pit, Costilla County is committed to propose a Technical
Revision, following completion of the third quarter 1997 groundwater monitoring at the pit, with
which the requirements of Condition 9 of Technical Revision 1 would be satisfied. Condition 9
of Technical Revision 1 reads as follows:
After five (5) calender quarters of sampling, the County will submit, for Division
approval as a proposed Technical Revision, permit conditions for groundwater at the site
and Point(s) of Compliance satisfying the requirements of Rules 3.1.7 (2) and 3.1.7 (6) of
the Construction Materials Rules and Regulations. The proposed permit conditions and
Point(s) of Compliance will be submitted to the Division within fifteen days following
receipt of the analyses of the samples taken during the fifth calender quarter of the
sampling program.
Condition 9, unfortunately, did not specify whether the date the analyses were received by the
County or the Division would trigger the l5 day period. Since the October 16, 1997 date is the
latest that any report of the sampling data could be considered received, the Technical Revision
required by Condition 9 of Technical Revision 1 was due October 31, 1997. Please provide the
required Technical Revision as soon as possible.