2006-10-18_REVISION - M1987049 - Laserfiche WebLink

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October 17, 2006 Bromley TR-003 Page 2 of 3 These changes aze shown on the new Figure D-1 (Revised), Exhibit D -Mining Plan, attached to this revision request. At present, Phases 7 and 8 are completely mined out and partially reclaimed. Phase 9 is nearing completion and the operator will be moving to Phase 10 and to mining the boundary with Ready Mixed Pit No. 1 to the south pending approval of the second item included in this Technical Revision. Finally, Phase 11 will be mined wet from north to south following completion of mining at Erger's Pond Pit to the north. Mining South Boundary Continuous with Ready Mixed Pit No. 1 The City of Brighton is the landowner at Bromley Lakes Pit and RMA is the landowner at Ready Mixed Pit No. 1 to the south. RMA is working with Brighton to facilitate future sealed water storage projects at Bromley Lakes designed and built by the City. At the City's request, Ready Mixed hereby requests a revision to mine the contiguous boundary between the two permitted properties with the following inherent benefits to both parties: 1. RMA gains nominal additional reserves by mining the 25-f1 setback originally planned along the southern boundary of Bromley Lakes Pit; 2. Brighton gains nominal additional potential water storage by using overburden and/or recycled "fines" to reconstruct an engineered fill berm along the boundary between the two sites; and 3. Brighton gains more favorable slurry wall permeability construction conditions along this reach by excavating compacted "fines" for soil-bentonite backfill mixing rather than sand and gravel. This plan meets with the approval of Brighton and a letter from the City endorsing this aspect of this revision request is attached. In addition, the following details should be noted with respect to DRMS review of our request to mine the boundary between the two sites, 1. The permitted area and affected land for Bromley Lakes Pit when originally permitted were identical, such that the 25-ft setback shown on the current approved mining plan is already included in the proposed affected land. There is, therefore, no increase in affected or disturbed land associated with this request. 2. Ready Mixed Pit No. 1 to the south was amended this year to make the site a large wetland azea using imported waste fines from all three RMA pits referenced herein material from which is all being processed at the Bromley Lakes Pit plant. The revised mine plan for Ready Mixed Pit No. 1 encompasses the entire property with no setbacks. (NOTE: DRMS files presently label the second Ready Mixed Pit No 1 Amendment that was approved this year as "AM-001 "rather than "AM-002". There was a previous amendment (AR-001?) approved in 1999 that is included in the "permit" file rather than the "revision" file. We wish to point this out to avoid possible confusion during the DRMS review of this revision request and to seek clarification as to the correct revision numbering for that site).