REV96246

• Permit No: C1981013
• IBM Index Class Name: Revision
• Doc Date: 3/25/1994
• Doc Name: PERMIT RENEWAL 2 STIPULATIONS ADEQUACY REVIEW GOLDEN EAGLE MINE PERMIT C-81-013 BASIN RESOURCES INC
• From: DMG
• To: BASIN RESOURCES INC
• Type & Sequence: RN2
• Media Type: D
• Archive: No

III IIIIIIIIIIIII III
STATE OF COLORADO
DIVISION OF MINERALS AND GEOLOGY
DP.Varlmenl of Natural Resources
1313 Sherman 51., Room 2I5
Denver, Colorado 80203
Phone. [phone]
FAX: [phone]
March 25, 1994
Mr. Ralph Lopez
Environmental Engineer
Basin Resources, Inc.
14300 Highway 12
Weston, CO 81091
RE: Permit Renewal No. 2, Stipulations Adequacy Review, Golden Eagle Mine,
Permit C-81-013, Basin Resources, Inc.
Dear Mr. Lopez:
~~~~~
DEPARTMENT OF
NATURAL
RESOURCES
koy kumer
Gu~crnor
ken s,i,,:.,r
Execwire Direrirn
michae~ tl Lonp
Dimsion DueUOr
The purpose of this second adequacy letter is to provide further comments on the original submittal
and to clarify several points made in the first adequacy letter of March 4, 1994. These clarifications
and comments have already been discussed with you in telephone conversations during the month of
March.
1. In order to avoid confusion, the Division advises that certain terms should be used only when
appropriate. A subsidence survey, under Rule 2.05.6(6)(e), is not the same as a structure
inventory, under Rule 2.05.6(6)(a). A subsidence control plan, per Rule 2.05.6(6)(f), is not
the same as a determination that subsidence will not occur due to limited extraction.
Rewording of the headings in the submittal is strongly recommended.
2. The Structure Inventory and Structure Inventory Map, required by Stipulation No. 66, should
~ ~ „ include all roads which have been constructed, as the Division has determined that
y~r,~,~r ,.,AP rr, constructed roads are "structures". The adequacy letter of March 4, 1994 incorrectly stated
that the map should show reads which were commonly used.
3. Section 2.05.6(6)(b) requires a description of the worst possible subsidence consequences for
all structures and renewable resource lands within [he permit and adjacent area, whether
damage has occurred or not. The submittal only lists the water line, aquifers and wells.
4. For structures and renewable resource lands that are known to lie within the zone of
predicted subsidence shown on the Structure Inventory Map No. 20, Rule 2.05.6(6)(b)(i)
applies. A determination of whether subsidence could cause material damage or diminution
of reasonably foreseeable use must be made for each such structure or renewable resource
]and. Rules 2.05.6(e)(ii)(A), (B) and (C) are to be referred to in developing this
determination. This is also the appropriate place where your "Response and Repair Plan",
for the purposes of addressing minor, non-material subsidence damage (Rule
2.05.6(6)(e)(ii)(B)),should be proposed.