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Stephanie Stowers -2- 20 March 2018 <br /> San Joaquin County Community <br /> Development Services <br /> septic tank and leach field systems may be regulated under the local agency's management <br /> program in lieu of WDRs. A county environmental health department may permit septic tank <br /> and leach field systems designed for less than 10,000 gpd. For more information on septic <br /> system regulations, visit the Central Valley Water Board's website at: <br /> http://www.waterboards.ca:gov/centralvalley/water issueslowtslsb_owts policy.pdf <br /> Antidegradation Considerations <br /> All wastewater discharges must comply with the Antidegradation Policy (State Water Board <br /> Resolution 68-16) and the Antidegradatier. Implementation Policy contained in the Basin P!an. <br /> The Antidegradation Policy is available on page IV-15.u1 at: <br /> http://Www.waterboards.ca.govlboard decisions/adopted orders/resolutions/1968/rs68 C�16.pdf <br /> In part it states: <br /> Any discharge of waste to high quality waters must apply best practicable treatment or <br /> control not on!y 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 oil water quality, as measured by background concentrations and <br /> applicable water quality objectives. <br /> The antidegradation analysis is a mandatory element in the land discharge WDRs permitting <br /> process. The environmental review document should evaluate potential impacts to both surface <br /> and groundwater q---aiity. <br /> If you have any questions about the discharge to land permitting process, including dewatering <br /> discharges to land, I can be reached at (916) 464-4740 or by email at <br /> dcalanchini@waterboards.ca. ov. <br /> -3A,V 1; <br /> DINA CALANCHINI <br /> Engineering Geologist <br /> Non-15 Waste Discharge to Land Permitting Unit <br /> cc: San Joaquin County Environmental Health Department, Stockton <br /> Krystal Allen, Property Owner <br />