Laserfiche WebLink
Peak Internet Mail - Water Quality Control Division DMR Guidance Page 1 of 2 <br />1 <br />Peak Internet Jean Cowman <jeancowman@peakinter.net> <br />Weiss Iml"*I scan, Prw1W <br />Water Quality Control Division DMR Guidance <br />1 message <br />Rosow - CDPHE, Kathleen <kathleen.rosow @state.co.us> Wed, Apr 22, 2015 at 2:02 PM <br />To: jeancowman @peakinter.net <br />Jean, <br />As we discussed by phone, attached is a copy of the DMR Guidance that indicates the information you <br />need to submit to the Division when you can not sample due to weather, safety, etc. <br />The title of the pertinent paragraph is : Reporting Permit Exceedances, Failures to Sample, or Other <br />Permit Violations <br />Also, the following discussion provides the Water Quality Control Division's (Division) expectations with respect to <br />facilities that have no potential to discharge stormwater from their industrial activities, within a discharge permit <br />context. <br />In accordance with the Colorado Water Quality Control Act (the CWQCA)and 5 CCR 1002-61 (Regulation No. 61- <br />Colorado Discharge Permit System Regulations), the requirement to obtain stormwater discharge permit coverage <br />applies to stormwater discharges from specific industrial activities, to surface waters of the State. <br />For a sand and gravel facility (SIC code 14), stormwater discharge permit coverage is required for stormwater runoff <br />that contacts overburden, raw material, intermediate or finished product, by product or waste products located at <br />the facility. Please note that this description includes stormwater runoff from immediate access roads and rail lines <br />used or traveled by carriers of raw materials, manufactured products, waste material, or by- products used or <br />created by the facility, among other pollutant sources. <br />However, if all runoff from the mine site (including all disturbed areas, roads, etc) is retained on site, stormwater <br />discharge permit coverage is not required. The CWQCA does not establish a threshold to aid the facility <br />owner /operator in making the determination that stormwater does not discharge from the facility (e.g., a 100 -year <br />storm event); therefore, the facility owner /operator must make this determination. Typically, the appropriateness <br />of a'no potential to discharge' claim is based on such factors as site topography and hydrology, and the <br />implementation of engineered structures to direct and retain stormwater on the facility. <br />Note that discharging stormwater from the facility once industrial activity has started, without the required <br />stormwater discharge permit coverage, is a violation of the CWQCA and may be subject to enforcement action by <br />the Division. If conditions at the facility change such that a stormwater discharge permit is required, the <br />owner /operator must apply for stormwater discharge permit coverage at least 30 days prior to any discharge. <br />If you determine that your facility has no potential to discharge stormwater associated with industrial activities, you <br />may inactivate the permit certification by submitting an inactivation form to the Division. The inactivation form <br />https: / /mail.google. coml mail l ?ui= 2 &ik= fbOcf8bb69 &view--pt &search= inbox &th= 14ce2b... 4/24/2015 <br />