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P.O. Box 63 <br />Masonville, Colorado 80541 <br />970 - 203 -1072 office <br />970 - 669 -8836 fax <br />303 -589 -5213 cell <br />Colorado Flagstone, Inc. <br />� _ I�"�G� <br />Department of Natural Resources, Division of Reclamation, Mining and Safety <br />Reference, Proposed Technical Revision <br />Mr. Michael Cummingham <br />1) A plan for sampling and removing all contaminated soil in the equipment service <br />area. <br />a) Impacted soils will be removed and stockpiled in a designated area on a tarp <br />until visual impacts are no longer observed. Soils samples will then be <br />collected from the bottom and sidewalls of the excavation to assure all soils <br />impacted above CDPHE action levels have been removed. The soil stockpile <br />will be sampled and sample results will be utilized to establish appropriate <br />waste manifesting of the soils. All soil samples will be submitted for volatile <br />organic compounds (VOCs) by EPA Method 8260, total extractable petroleum <br />hydrocarbons (TEPH) analysis by EPA Method 8015, B and TCLP 8 RCRA Metals. <br />2) An Inventory of all types and volumes of liquids stored at the mine site. <br />a) 500 gallon gasoline tank with 90" X 72" X 24" secondary steel container. <br />b) 500 gallon used oil tank with 90" X 72" X 24" secondary steel container. <br />c) 500 gallon #2 red diesel with 90" X 72" X 24" secondary steel container. <br />d) 250 gallon bulk oil tank of ISO 46 Hydraulic oil with secondary polyethylene <br />containment 87" X 62" X 32 ". <br />e) 250 gallon bulk oil tank of 15W 40 motor oil with secondary polyethylene <br />containment 87" X 62" X 32 ". <br />f) 55 gallon drums of 89/ 90W gear oil on spill containment platform with 66 <br />gallon containment. <br />g) 55 gallon drum of used coolant on spill containment pallet with 66 gallon <br />containment. <br />3) A description of the secondary containment for each tank site. RECEIVFP <br />a) See # 2 <br />APR 0 7 201 <br />Division of Reclamation, <br />Mining 8 Safety <br />