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Rick Griffin - 3 - k"'� 2 August 2005 <br /> Dewatering Permit <br /> The proponent may be required to file a Dewatering Permit covered under Waste Discharge <br /> Requirements General Order for Dewatering and Other Low Threat Discharges to Surface Waters <br /> Permit, Order No. 5-00-175 (NPDES CAG995001) provided they do not contain significant quantities <br /> of pollutants and are either(1) four months or less in duration, or(2) the average dry weather discharge <br /> does not exceed 0.25 mgd: <br /> a. Well development water <br /> b. Construction dewatering <br /> C. Pump/well testing <br /> d. Pipeline/tank pressure testing <br /> e. Pipeline/tank flushing or dewatering <br /> f. Condensate discharges <br /> g. Water Supply system discharges <br /> h. Miscellaneous dewatering/low threat discharges <br /> Industrial <br /> A NPDES General Permit for Storm Water Discharges Associated with Industrial Activities, NPDES <br /> No. CAS000001, Order No. 97-03-DWQ regulates 10 broad categories of industrial activities. The <br /> General Industrial Permit requires the implementation of management measures that will achieve the <br /> performance standard of best available technology economically achievable (BAT) and best <br /> conventional pollutant control technology(BCT). The General Industrial Permit also requires the <br /> development of a Storm Water Pollution Prevention Plan (SWPPP) and a monitoring plan. The General <br /> Industrial Permit requires that an annual report be submitted each July 1. More information may be <br /> found at htip://www.swrcb.ca.gov/stormwtr/industrial.html <br /> For more information, please visit the Regional Boards website at <br /> http://www,waterboards.ca.gov/centralvalley/or contact me at 916.464.4642 or by e-mail at <br /> stevenb(a%waterboards.ca.g_o_v. <br /> BRETT STEVENS <br /> Storm Water Unit <br /> 916.464.4642 <br /> cc: San Joaquin County <br />