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PA-1100224(UP)PMJW 2- 13 December 2011 San Joaquin County Phase I and II ftaftm 0841 IP The Phase I and II MS4 permits require the Permittees reduce pollutants and runoff flows from new development and redevelopment using Best Management Practices*(BMPs)to the maximum extent practicable (MEP). MS4 Permittees have their own development standards, also known as Low Impact Development(LID)/post-construction standards that include a hydromodification component. The MS4 permits also require specific design concepts for LID/post-construction BMPs in the early stages of a-projectduring the entitlement and CEQA process and the development plan review process. For more information on which Phase I MS4 Permit this project applies to, visit the Central Valley Water Board website at: htto:Ilw_ww.waterboards.ca aov/c nlMbMlleylw r jssues/storm water/municil?al germ WHIM11111WHI Wailer General,Penult Storm water discharges associated with industrial sites must comply with the regulations . contained in the Industrial Storm Water General Permit Order No. 97-03-DWQ. For more information on the Industrial Storm Water General Permit, visit the Central Valley Water Board website at: •/ rds. ov/ ntralvalle /w er issues/storm r/in us#ria ne l Dor gni m . dean Water Act Sec#lon 444 EM If the project will involve the discharge of dredged or fill material in navigable waters or wetlands, a permit pursuant to Section 404 of the Clean Water Act may be needed-for the United States Army Cops of Engineers (USACOE). if a Section 404 permit is required by the USACOE,the Central Valley Water Board will review the permit application to ensure that discharge will not violate water quality standards. If the project requires surface water drainage realignment,the applicant is advised to contact the Department of Fish and Game for information on Streambed Alteration Permit requirements. If you have any questions regarding the Clean Water Act Section 404 permits, please contact i the Regulatory Division of"the Sacramento District of USACOE-at-(916).557-5250. .. Clean Permit—W&Wr ggailty - If an USACOE permit,or any other federal permit, is required for this project due to the disturbance of waters of the United Stag(such as streams and wetlands),then a Water Quality Certification must be obtained from the Central Valley Water Board prior to initiation of project activities. There are no waivers for 401 Water Quality Certifications. ' Municipal Permits=The Phase I Municipal Separate Storm Water System(MS4)Permit corers medium sized MunicipaN d"(nerving between 100,000 and 250,000 people)and large sized municipalities(serving over 250,000 people). The phase 11 MS4 provides coverage for small municipalities,including non-traditional Small MS4s,which include military gases,public campuses,prisons and hospitals. {