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PA -1800220 Deviation Project - 2 - 26 October 2018 <br />San Joaquin County <br />the United States Environmental Protection Agency (USEPA). Basin Plan amendments <br />only become effective after they have been approved by the OAL and in some cases, the <br />USEPA. Every three (3) years, a review of the Basin Plan is completed that assesses the <br />appropriateness of existing standards and evaluates and prioritizes Basin Planning issues. <br />For more information on the Water Quality Control Plan for the Sacramento and San <br />Joaquin River Basins, please visit our website: <br />http://www.waterboards.ca.gov/centralvalley/water issues/basin_plans/. <br />Antidegradation Cons-" derations <br />All wastewater discharges must comply with the Antidegradation Policy (State Water Board <br />Resolution 68-16) and the Antidegradation implementation Policy contained in the Basin <br />Pian. The Antide_gradation Policy is available on page IV -15.01 at: <br />http://www.waterboards.ca.gov/centralvalleywater issues/basin plans/sacsjr.pdf <br />In part it states: <br />Any discharge of waste to high quality waters must apply best practicable treatment or <br />control ,not only to prevent a condition of pollution or nuisance from occurring, but also to <br />maintain the highest water .quality possible- consistent with the maximum benefit to the <br />people of the State. <br />This information must be presented as an analysis of the impacts and potential impacts <br />of the discharge on water quality, as measured by background concentrations and <br />applicable water quality objectives. <br />The antidegradation analysis is a mandatory element in the National Pollutant Discharge <br />Elimination System and land discharge Waste Discharge Requirements (WDRs) permitting <br />processes. The environmental review document should evaluate potential impacts to both <br />surface and groundwater quality. <br />li. 'Permitting Requirements <br />Construction Storm Water General Permit <br />Dischargers whose project disturb one or more acres of soil or where projects disturb less <br />than one acre but are part of a larger common plan of development that in total disturbs <br />one or more acres, are required to obtain coverage under the General Permit for Storm <br />Water Discharges Associated with Construction Activities (Construction General Permit), <br />Construction General Permit Order No. 2009-009-DWQ. Construction activity subject to <br />this permit includes clearing, grading, grubbing, disturbances to the ground, such as <br />stockpiling, or excavation, but does not include regular maintenance activities performed to <br />restore the original line, grade, or capacity of the facility. The Construction General Permit <br />requires the development and implementation of a Storm Water Pollution Prevention Plan <br />