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_... <br />Runoff <br />BPT as specified in 40 CFR 436 Subparts B and C provides that any overflow <br />from facilities designed, constructed and maintained co contain ar treat the <br />volume of wastewater which would result Erom a 10 year 24-hour precipitation <br />event shall aoe be subject to technology based effluent limitations. However, <br />limitations imposed in this permit are not technology based effluent <br />limitations and thus this provision-does not apply. Additionally. 10.1.3 (1) <br />exempts storm runoff waters from application of SES. These facts tend to <br />create an enforcement problem and potentially alloy degradation of water <br />quality. Therefore, after consideration of the facts, the permit will contain <br />the runoff provision as specified in 40 CFR 436, even though the permit <br />effluent limitations are not technology based. This approach will 6e in <br />general agreement with Federal eequiremencs and should present no special <br />problems for facilities as most Facilities will have sizeable retention areas <br />within the pits. <br />Reporting <br />Reports will be required both annually and in cases of noncompliance with <br />permit conditions. The permittee will, however, be required to maintain its <br />records for a period of three (3) years. Such records will be subject co <br />inspection by the State of Colorado and/or EPA. <br />Marshall Fischer - EPA Region VLII <br />Robert Shukle - Colorado Depc. of Health <br />- 6 - <br />