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PA-1900092 (MS) Project - 2 - 6 June 2019 <br /> San Joaquin County <br /> has adopted a Basin Plan amendment in noticed public hearings, it must be <br /> approved by the State Water Resources Control Board (State Water Board), Office <br /> of Administrative Law (OAL) and in some cases, the United States Environmental <br /> Protection Agency (USEPA). Basin Plan amendments only become effective after <br /> they have been approved by the OAL and in some cases, the USEPA. Every three <br /> (3) years, a review of the Basin Plan is completed that assesses the <br /> appropriateness of existing standards and evaluates and prioritizes Basin Planning <br /> issues. <br /> For more information on the Water Quality Control Plan for the Sacramento and <br /> San Joaquin River Basins, please visit our website: <br /> http://www.waterboards.ca.gov/centralvalley/water_issues/basin_pIans/ <br /> Antidegradation Considerations <br /> All wastewater discharges must comply with the Antidegradation Policy (State <br /> Water Board Resolution 68-16) and the Antidegradation Implementation Policy <br /> contained in the Basin Plan. The Antidegradation Implementation Policy is <br /> available on page 74 at: <br /> https-//www.waterboards.ca.gov/centralvalley/water_issues/basin_plans/sacsjr_201 <br /> 805.pdf <br /> In part it states: <br /> Any discharge of waste to high quality waters must apply best practicable <br /> treatment or control not only to prevent a condition of pollution or nuisance from <br /> occurring, but also to maintain the highest water quality possible consistent with <br /> the maximum benefit to the people of the State. <br /> This information must be presented as an analysis of the impacts and potential <br /> impacts of the discharge on water quality, as measured by background <br /> concentrations and applicable water quality objectives. <br /> The antidegradation analysis is a mandatory element in the National Pollutant <br /> Discharge Elimination System and land discharge Waste Discharge Requirements <br /> (WDRs) permitting processes. The environmental review document should <br /> evaluate potential impacts to both 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 <br /> disturb less than one acre but are part of a larger common plan of development that <br /> in total disturbs one or more acres, are required to obtain coverage under the <br /> General Permit for Storm Water Discharges Associated with Construction Activities <br /> (Construction General Permit), Construction General Permit Order No. 2009-009- <br /> DWQ. Construction activity subject to this permit includes clearing, grading, <br />