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Y ~ <br />S. S. Shuey <br />Page 2 <br />enclosed revised page 2.05-37iii, the steel lip provides a spill <br />containment capacity (secondary containment) of 54 cubic feet (9.4' <br />X 11.5' X 0.5'). After removing the volume of the barrels that <br />take up part of the containment volume, the net secondary <br />containment volume is about 30 cubic feet. Generally, secondary <br />containment should be provided for the entire contents of the <br />largest single tank in a storage area plus precipitation which is <br />not applicable to this covered storage building (Ref 40CFR 112.3). <br />One 55 gallon barrel contains 7.4 cubic feet therefore the metal <br />storage building satisfies the secondary containment requirement. <br />The above discussion and information should satisfy items 1) and 2) <br />of the abatement required for the subject NOV. The third abatement <br />item is to permit an approved noncoal waste storage area. Enclosed <br />is an application for a minor revision to permit such an area. The <br />following revised pages and drawing comprise the minor revision <br />application: <br />Page\Drawing Description of Change <br />2.05-9iii Added k. Noncoal Waste Storage. Also added <br />item g. Equipment and Material Storage Yard in <br />order to update the description of the <br />facilities. <br />2.05-37iii Added discussion of how the operator handles <br />noncoal waste. <br />E-3207R Added a "k" in the areas where noncoal waste <br />is stored. <br />Please call if you have any questions. <br />Sincerely, <br />5=~~~ <br />Jim Stover, P.E. <br />Consulting Engineer <br />cc: Basil Bear <br />