Laserfiche WebLink
design flow rate, certified by a professional engineer. Flows in excess of the design flow rate <br /> may result in lowering the reliability of achieving compliance with water quality <br /> requirements. <br /> 4. Prohibition III.D (No scouring or erosion due to discharge of extracted and treated <br /> groundwater at the point where a storm drain discharges to a receiving water): This <br /> prohibition is retained from the previously issued Fuel and VOC General Permits,with slight <br /> revisions for consistency with similar provisions of the Municipal Regional Stormwater <br /> NPDES Permit(Order No. R2-2009-0074), and is based on the sediment and erosion control <br /> goals of section 4.19 of the Basin Plan. <br /> 5. Prohibition III.E (No pollution, contamination,or nuisance): This prohibition is based <br /> on CWC section 13050, and has been retained from the previously issued Fuel and VOC <br /> General Permits. <br /> 6. Prohibition III.F (No bypass or overflow of untreated or partially treated polluted <br /> groundwater): This prohibition is retained from the previously issued Fuel and VOC <br /> General Permits and is based on 40 CFR 122.41(m). <br /> B. Shallow Water Discharges and Basin Plan Discharge Prohibition 1 <br /> The Basin Plan(Chapter 4,Table 4-1, Discharge Prohibition 1) prohibits discharges not <br /> receiving a minimum 10:1 initial dilution or to dead end sloughs. In accordance with the Basin <br /> Plan, this Order continues to grant Dischargers an exception to the discharge prohibition for <br /> discharges to shallow waters. The exception is based on section 4.2 of the Basin Plan,which <br /> states that an exception to Prohibition 1 will be considered where: <br /> • A discharge is approved as part of a reclamation project; or <br /> • It can be demonstrated that net environmental benefits will be derived as a result of the <br /> discharge; or <br /> • A discharge is approved as part of a groundwater cleanup project and, in accordance with <br /> Resolution No. 88-160 `Regional Board Position on the Disposal of Extracted <br /> Groundwater from Groundwater Clean-Up Projects', it has been demonstrated that <br /> neither reclamation nor discharge to a publicly owned treatment works is technically and <br /> economically feasible, and the discharger has provided certification of the adequacy and <br /> reliability of treatxnent facilities and a plan that describes procedures for proper operation <br /> and maintenance of all treatment facilities. <br /> The Basin Plan further states: <br /> Significant factors to be considered by the Regional Water Board in reviewing requests <br /> for exceptions will be the reliability of the discharger's system in preventing inadequately <br /> treated wastewater from being discharged to the receiving water and the environmental <br /> consequences of such discharges. <br /> To comply with the exception, this Order requires Dischargers to document in the NOI <br /> application that neither reclamation nor discharge to a POTW is technically and economically <br /> Attachment F—Fact Sheet F-12 <br /> For VOC and Fuel General NPDES Permit No.CAG912002 <br />