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~? <br />1 A~ <br />V y <br />Runoff ~ ~ . ~ ~~ <br />BPT as specified Ln 40 CFR 436 Subparts 8 and C provides t~i t any overflow <br />from facilities designed, constructed and maintained to contain or treat the <br />volume of wastewater which would result Erom a 10 year 2f~=hour pceripicacion <br />event shall not be subject co technology based effluent`~limltations. However, <br />limitations imposed is 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 co <br />crease 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/f436, even though the permit <br />effluent limitations are not technology b~sed. This approach will be in <br />general agreement with federal requirements 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 botki annually and in cases of noncompliance with <br />permit conditions. The permit ee will, however, be required to maintain Lts <br />records Ear a period of three (3) years. Such records will be subject to <br />Snspection by the State of Colorado and/or EPA. <br />Marshall Fischer - EPA Region VIII <br />Robert Shukle - Colorado Depc. of Health <br />- 6 - <br />