2000-08-17_REVISION - M1999002

• Permit No: M1999002
• IBM Index Class Name: Revision
• Doc Date: 8/17/2000
• Doc Name: ADEQUACY LETTER FOR TR-3
• From: DMG
• To: AMERICAN SODA
• Type & Sequence: TR3
• Media Type: D
• Archive: No

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STATE OF COLORADO
7~DIVISION OF MINERALS AND GEOLOGY
epartment of Natural Resources
131 J Sherman St., Room '_ 15
Denver, Colorado 80203 D I V I S I O N o f
Phone [phone] MINERAL $
FA%: (303) 83?8106 &
,/ GEOLOGY
AUgusl 17, 2000 Y R E C L A M A T I O N
FOR YOUR CORRESPONDENCE FILE __~ MINING•SAFETY
Mr. Kurt R. Nielsen
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Division Dneaor
RE: Technical Revision TR-003, Yankee Gulch Sodium Minerals Project, Permit No. M-99-002
Dear Mr. Nielsen:
The Division of Minerals and Geology (Division) has completed a review of the above captioned
technical revision application. The technical revision is scheduled for a formal public hearing before
the Mined Land Reclamation Board (Boazd) on August 24, 2000. If American Soda addresses the
following listed adequacy items and agrees to the conditions to approval listed in this letter, the
Division staff will be recommending approval of the technical revision at the hearing.
Adequacy Items
Provide the Division with a potentiometric surface contour map that is updated with the most recent
data from the Yankee Gulch Project Monitoring wells. The map must be of a large enough scale to
ensure legibility. A scale of one inch to 300 feet is suggested. The map must illustrate the
potentiometric surface contours in both the upper and lower aquifers. Multiple maps or overlays
may be needed for legibility. The map must be provided sufficiently in advance of the August 24,
2000 hearing to allow for a thorough review by the Division of Minerals and Geology. The
Division suggests that the map be provided no later than August 18, 2000.
Sug;;ested conditions to approval:
Ground water in the vicinity of the Yankee Gulch Sodium Minerals Project is subject to regulation
through permits issued by the Colorado Mined Land Reclamation Board, the U.S. Bureau of Land
Management (BLM), and the U.S. Environmental Protection Agency (EPA). If BLM and/or EPA
requires permit conditions protective of ground water that potentially conflict with conditions
approved in the reclamation permit, the Operator will contact the Division of Minerals and Geology
(DMG) within a reasonable time and cooperate in revising the reclamation permit as necessary to
address any conflicting requirements. If BLM and/or EPA impose permit conditions protective of
ground water that differ from those in the reclamation permit, but aze not necessarily in conflict, the
Operator will contact the DMG within a reasonable time and cooperate in the determination as to
whether or not revision of the reclamation permit is necessary.