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Permit #: Confidentah Class:~i Type-Seq.:_ ,w„ . From: a To: Et ,~~ ~' • ~'" i+t~ Doc. Na Doc. Date (if nod stamp): / /(0 0 __ Dougflas Mountain Residents' Association 32360 Robinson Hill Road 0 Golden, CO 80403 December 15, 2004 Jli~ ~.' Colorado Division of Minerals and Geology 1313 Sherman Street, Room 215 pE~ I ~ ,.hG4 Denver, Colorado 80203 'livisic~af;:ic:mis::: S':d¢Ca; Re: Proposed MMRR Quarry This letter is provided by the Douglas Mountain Residents Association (DMRA) in response to the MMRR Quarry application, with a proposed location approximately 7,000 feet northwest of the junction of Highway 1 19 and Douglas Mountain Drive. The project proponent and applicant is Clear Creek District-Water Providers LLC, 5560 Quebec Street, Suite 11 Q Greenwood Yillage,.Colorado. _ _. _ _ _ Douglas Mountain Filing No. 1, a residential area, is located immediately east of the proposed mining facility. We are adamantly opposed to the construction and operation of this or any other mining facility of this type in this area. We have had direct experience with the impacts associated with the operation of the Albert Frei & Sons Quarry on US 6 in Clear Creek Canyon. None of the regulations associated with the operation of this facility have been enforced by the State of Colorado, setting a very poor example of rock mining in this sensitive region. As such, we request that DMG delay a decision to issue a mining permit until the following issues, at a minimum, are fully considered and addressed. vv 3 . ,r , Latll~; With respeci to the quarry application we have the following speclfio comment's ' ..~:,:1'I -1r,' ) . ~ II iL' :.lf~ . r•,- ! r :. tl .,r I 1,. r.. :1 . Irai('), ,J . I,. ,' I rri I ~:.. I:" rr„-. rl h' 'I~:-dlnll ' I i ~ fl •i~" '1_ ": C.'^.. ;r39; IC Irrf 'c;L.~ rlhr: - . Page_10 - rBlastiugProcedures' ~ ' I" `.i "~ 'li'- Both private and public striictiir'es must be protecfed from the'impacts of blasting and `rb'ck `movements The most stringent O~M,''US Bureau of Mines; di other relevant ground vibration standards must be adhered to. A plan must be developed that includes monitoring and reporting to ensure the protection of all structures within the DMRA area.` Compliance with these standards must be documented through a detailed monitoring system to be installed on Douglas Mountain Drive and in DMRA areas above the quarry, following review and approval by DMRA. Monitoring results will be provided to DMRA, with interpretation, on a monthly basis. The impacts of blasting and blasting residuals on ground water flow, well yields, and water quality must be documented and fully mitigated. Page 17 - Exhibit G Water""Information - Provide DMRA with the site drainage design and runoff control plans. Where will the industrial water supply (proposed to be trucked to the facility) be obtained? How does the proposed volume, 30,000 gallons per day, compare to the volume of water used for similar purposes at the Frei Quarry? Where will the crusher fines be stored and what is the potential for this material to release heary metals in dissolved or particulate form? What are the potential metal, nutrient, and sediment concentrations in runoff water and how will this impact North Fork Clear Creek? ' Page:19' ~ -Exhibit H Wildlife~Iriforuiation ` ' '"' ' I'~~ ~ ' ":''' li" A site=specific w2ldlifa iridentory,was nof'perfotiiied ~'T7ie'wildlife andwegetation information iise8 for the application was from a~differenf area that is not relevant to the proposed facility. A detailed site- specif c inventory of wildlife, and vegetation is required for,the facility as part of the application. The Colorado Division of Wildlife should also be abinsulted'on'this~matter" TNe' Rleolamation Plan, including ,vegetation species, and cover requirements must be provided to DMRA for review.