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<br />SPILL PREVENTION CONTROL & COUNTER^tEASURE PLAN <br />To meet the requirements of Federal Regulation, Title 40, Protection of the <br />Environment, Chapter 1, (Environmental Protection Agency) Subchapter D ('dater <br />Program); Part 112 (Oil Pollution Prevention), Trapper Mining Inc. has prepared <br />the following Spi11 Prevention Control and Countermeasure Plan. <br />The follow paragraph headings are in reference to [he guidelines set forth in <br />Section 112.7 of the above mentioned regulations. <br />112.7 <br />(a) This facility experienced no still events within [he twelve months <br />prior to [he effective date of this part (Januacy 10, 1974). <br />(b) The following table is an estimate of predicted directions, rates of <br />flow, and total quantity of oils which could be spilled from [he <br />facility as a result of a tank failure, based on a onz-hour time <br />interval to drain the tank (Sze attached maps for site locations): <br />Site ~k Direction of Flow Ra[e of Flow Total <br /> <br />1 Southwest 333 gpm 20,000 gal <br />2 Southwest 1,667 gpm 100,000 gal <br />3 South 267 gpm 15,000 gal <br />4 South 8.3 gpm 300 gal <br />5 North 133 gpm 5,500 gal <br />6 North 133 gpm 8,000 gal <br />7 North 267 gpm 15,000 gal <br />8 Northwest 267 gpm 15,000 gal <br />9 (Underground) --- --- <br />!0 Southwest R.3 gpm 500 gal <br />(c) A11 surface tanks except /k4, which is sufficiently small and of suf- <br />ficient distance from the others [o be exempt from [his plan, are <br />surrounded with compacted earthen dikes desiged [o contain [he entire <br />volume of the largest single tank within them with a safety factor of <br />' 1. 5. The banks of Che dikes are sloped [o minimize erosion. <br />cont. <br />