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LG€€G1 t_ <br /> California RF -ional Water Quality Cont A Board s <br /> Central Valley Region =+ - <br /> Katherine Hart Chair ` <br /> Linda S.Adams Edmund G.Brown Jr. <br /> Acting Secretary for 11020 Sun Center drive#200, Rancho Cordova,California 95670-6114 Govemor <br /> Fnvironmenta!Protection (916)464-9291 -FAX(916)464-4645 <br /> http:/iwww.waterboards.ca.gov/centraIvaIley <br /> 21 July 2011 <br /> Kevin Swanson CERTIFIED MAIL <br /> San Joaquin County 7010 3090 0001 4843 2794 <br /> 1810 East Hazelton Avenue <br /> Stockton, CA 95205 <br /> COMMENTS TO DRAFT ENVIRONMENTAL IMPACT REPORT, MUNN & PERKINS <br /> QUARRY EXCAVATION PERMIT PROJECT, SCH NO. 2005082001, SAN JOAQUIN <br /> COUNTY <br /> Pursuant to the State Clearinghouse's 9 May 2011 request, the Central Valley Regional Water <br /> Quality Control Board (Central Valley Water Board) has reviewed the Draft Environmental E-1 <br /> Impact Report for the Munn & Perkins Quarry Excavation Permit Project, located in <br /> San Joaquin County. <br /> Our agency is delegated with the responsibility of protecting the quality of surface and <br /> groundwaters of the state; therefore our comments will address concerns surrounding those <br /> issues. <br /> Construction Storm Water General Permit <br /> Dischargers whose project disturb one or more acres of soil or where projects disturb less than <br /> one acre but are part of a larger common plan of development that in total disturbs one or <br /> more acres, are required to obtain coverage under the General Permit for Storm Water <br /> Discharges Associated with Construction Activities (Construction General Permit), <br /> Construction General Permit Order No. 2009-009-DWQ. Construction activity subject to this <br /> permit includes clearing, grading, grubbing, disturbances to the ground, such as stockpiling, or E-2 <br /> excavation, but does not include regular maintenance activities performed to restore the <br /> original line, grade, or capacity of the facility. The Construction General Permit requires the <br /> development and implementation of a Storm Water Pollution Prevention Plan (SWPPP). <br /> For more information on the Construction General Permit, visit the State Water Resources <br /> Control Board website at: <br /> http://www.waterboards.ca.gov/water issues/p rog rams/stormwater/const ermits.shtmI <br /> Phase I and II Municipal Separate Storm Sewer System MS4 Permits' <br /> The Phase I and 11 MS4 permits require the Permittees reduce pollutants and runoff flows from <br /> new development and redevelopment using Best Management Practices (BMPs) to the <br /> E-3 <br /> ' Municipal Permits = The Phase I Municipal Separate Storm Water System (MS4) Permit covers medium sized <br /> Municipalities (serving between 100,000 and 250,000 people) and large sized municipalities(serving over <br /> 250,000 people). The Phase Il MS4 provides coverage for small municipalities, including non-traditional Small <br /> MS4s, which include military bases, public campuses, prisons and hospitals. <br /> California Environmental Protection Agency <br /> CaRecycied Paper <br />