2012-02-09_REVISION - M1990025 - Laserfiche WebLink

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AGGRGATE8 FOUR STATES AGGREGATES McStone Aggregates PO Box 1525 — 200 4 Street Dolores, Colorado 81323 (970) 882 -7878 Colorado Division of Reclamation, Mining, and Safety ATTN: Wallace H. Erickson, Environmental Protection Specialist 1313 Sherman Street, Room 215 Denver, CO 80203 ,�+ Subject: Request for Technical Revision, X11 -1990 -025 7 February 2012 Dear Sir: I am requesting a Technical Revision for Hay Camp Pit, M -1990 -025, as provided by Rule 1.9. To my knowledge, after reviewing the file, this would be Technical Revision TR -01. The TR is for the following actions, which I do not believe have more than a minor effect upon the approved Reclamation Plan: a. Location of a portable Hot Mix Asphalt (HMA) Facility on Hay Camp Pit for specific projects and contracts, on an intermittent basis, together with necessary supporting material storage, parking, and equipment. b. Use of non - hazardous waste materials (such as baghouse dust, scrubber solids, off - specification HMA, material from start-up /shut -down) as backfill for reclamation of the Hay Camp Pit. The trigger for this request is the need to provide material and support paving operations for a number of CDOT and Federal Highway Administration (FHWA) /National Park Service projects planned for the 2012 Construction Season in Montezuma, western La Plata, Dolores, and possibly San Miguel Counties, Colorado. However, the request would be for an indefinite period of time. General Concept: Various companies will locate portable HMA facilities to Hay Camp Pit, and use aggregates from the pit to produce HMA which would be delivered by truck to the work sites. Normally, there will be an increased production of aggregates for several weeks or months before the HMA facility is moved to the site. It is anticipated that only one HMA facility at a time would be located and operated. The equipment might be moved to Hay Camp Pit in advance of the scheduled production, and might be left at the pit for some time (but not operating) before relocating elsewhere. Since the contracts for various projects are usually only awarded a few months before work begins, the exact size, model, serial number, and permit numbers for the HMA facility are not available at this time. The facility will usually be set up near crushing and screening trains already operating at Hay Camp Pit. The facility will not be set up on areas already reclaimed, whether reclamation release has been requested or not. Existing roads, on- and off -site, will be used to support the facility, and no improvements to those roads will be made. Stockpile areas may be increased in size, but again, will not use reclaimed areas. General impacts: The facility will require trucks haul the equipment to site, haul AC oil and fuel beyond that normally required by trucks and crushing /screening equipment operating on site, and other materials (such as lime and soap) used to produce HMA. Dump trucks will haul produced HMA from the facility to the work site. Generally, the plant and associated