PERMFILE115031

• Permit No: m2004044
• IBM Index Class Name: Permit File
• Doc Date: 10/20/2004
• Doc Name: Adequacy Review
• From: DMG
• To: Tetra Tech-RMC Inc.
• Media Type: D
• Archive: No

4. On Page D-2 of your application you state " In addition, a portion of the Phase 3 topsoil
and overburden will be removed to adjust the flood boundary....." Please explain this
statement and show, on an Exhibit C Map, the proposed flood boundary adjustment.
5. Your Mining Plan, on page D-2, states that the West Fill Area will require installing
temporary crossings at the Brighton and Brantner Ditches. Please provide construction
plans for the crossings. If Aggregate Industries has not already done so, provide copies
of the agreements for encroachment into the ditch companies properties or rights-of--way
for construction of the crossings.
6. Recently the Mined Land Reclamation Board included on page 6 of the 112c permit
application package a "Permit Condition" regazding reportable spills, Your application
does not have the permit condition. Please add the following condition of approval to
your application.
A reportable spill is a spill of any toxic or hazardous substance (including spills of petroleum
products) within the mined land permit azea reportable to any Division of the Colorado
Department of Public Health and the Environment, the National Response Center, the Colorado
Emergency Planning Commission, any local Emergency Planning Commission, local Emergency
Planning Committee, or the State Oil Inspector. The mine Operator shall notify the Division of
Minerals and Geology (DMG) of a reportable sill within the mined land permit area using the
same timeframe required by the permit, license, notice, statute, rule or regulation governing the
reporting of the spill to the other appropriate agency. Notice of a reportable spill shall be FAXed
to: Minerals Program Supervisor, Division of Minerals and Geology, FAX [phone]. The
FAX shall include acall-back number of a responsible company official for DMG staff to use as
a contact.
7. Please provide your plans for containment of 110% of the greatest potential spill of bulk
petroleum products or other toxic liquids to be stored in the permit azea.
8. Your mining plan for Phase 1 says "scrapers will strip the topsoil and overburden and
either stockpile it along the perimeter of the area to be mined, on top of the resource or
transport it to the fill area...." This phase will either be reclaimed as upland or wet
meadow. These two final land uses require topsoil replacement. Please state which of
the three topsoil storage azeas will be used and show the location on the mining plan map.
The Division needs to know where the topsoil will be placed for plan review purposes
and calculation of the financial wan•anty. If the planned location changes at a later date,
A. I. can submit a Technical Revision to show the change.
9. Your plan states that Phase 2A is being mined under Permit No. M-1991-140 and that
reclamation for this azea will be incorporated under this permit upon approval of the
DMG. Will any extraction activities in Phase 2A be conducted under this proposed
permit? If so provide your plans to complete the resource extraction. If the permit is
approved, as written, only reclamation activities will be allowed to occur in Phase 2A.