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PA-1800316(UP)Proiect -2- 17 January 2019 <br /> San Joaquin County <br /> Control Board (State Water Board),Office of Administrative Law(CAL)and In some cases, <br /> the United States Environmental Protection Agency(USEPA). Basin Plan amendments <br /> only become effective after they have been approved by the CAL 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:l/wvvvi.waterboards.ca.g ov/centralvalley/water_issuesfbasin_r)lans/ <br /> Antidegradation Considerations <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 /> Plan. The Antidegradation Implementation Policy is available on page 74 at: <br /> htt ps:llwww.wat e r boards.ca.g ovicentralvalleyfwater_issues/basin_plansisacsjr_201805.pd€ <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 /> appticable 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 /> II. Permitting Requirements <br /> Construction Storm Water General Permit <br /> Dischargers whose project disturb one or more acres of soil or where projects d sturb 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 /> Planning Commission Staff Report, Item # 1 02/06/2020 — PA-1800316 (UP) 25 <br /> Response Letters <br />