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G <br />-T Y5 <br />• <br />Epviropupept, C. <br />LARRY E. O'BRIAN 7985 VANCE DRIVE, SUITE 205A <br />FOUNDER ARVADA, COLORADO 80003 <br />303-423-7297 <br />FAX 303-423-7599 <br />April 7, 2005 (, S <br />Mr. Thomas Schreiner <br />Division of Minerals and Geology •? <br />1313 Sherman St., Room 215. <br />Denver, CO 80203 - <br />Dear Tom, <br />RE: Albert Frei and Sons, Inc. / <br />Walstrum.Aggregate Quarry Permit # 83-Q33_?? <br />Technical Revision Adequacy Review <br />On behalf of my client Albert Frei'and Sons', Inc., I am <br />responding to''your adequacy review letter dated March.22,*2005. <br />As I explained in the phone Albert Frei and Sons, Inc., has <br />decided that using roadbase to build a large rather'infle'xible <br />enclosure for petroleum storage is impractical at this time. <br />They have been reviewing their fuel, lubricant and antifreeze <br />needs at the mine and have decided to reduce the amount stored on <br />the site until a permanent concrete structure is built. I have <br />attached a location map showing the current location of the fuel <br />storage area as requested. <br />At the time of the Technical Revision submittal they had 500 <br />gallons of unleaded gas, 500 gallons of clear diesel and 6,000 <br />gallons of red diesel. In addition, they had 20 barrels for <br />storing lubricants, antifreeze and collection of waste oil. Frei <br />proposed l..-.uilding an dirt berm enclosure that could -contain. these <br />items. As you pointed out in your adequacy letter some method of <br />sealing the enclosure was necessary and Frei's found that the <br />material they proposed using could not be adequately compacted to <br />seal it. After much discussion it was decided to reduce the <br />amount of fuels stored on site and reduce the amount of waste oil <br />that accumulates until it is removed. <br />At this time.there is 6,000 gal of red diesel'on the site <br />and 10-13 barrels, in 2 - 750 gallon watering tanks. One tank <br />with 6 barrels is on the service area and on tank with 7 barrels <br />is near the refueling station. A steel enclosure for the fuel <br />will be built and the 6000 gal tank will be set in it. The <br />current tank'is a self contained unit with the pump-,',fill inlet <br />and-fueling hose attached.- Once in the enclosure only the <br />fueling hose will be Qutside the enclQSUre and then only'during <br />refuelling. <br />This enclosure will.be.20' by 10' by 5' and made of a inch- <br />steel plating. The plating will be welded onto an exterior frame <br />constructed of 3" by 3" angle iron and a double sealed drain will <br />be installed to-allow removal of spilled fuel or accumulated