Permits & Development - Encroachment(EP)/Driveway(DW) Permits - 2011_PS-1100001 thru PS-1100500_ - PS-1100115

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PAG. Kim Don,*v.a^ CWSC, Stockton District Wide Potable Water System Maintenance 19 January 2011 PROJECT DIS(;RIPTION The Discharger I)raposes to discharge groundwater from their new supply well 21-02. This well is located near the intersection of Sanguinetti Lane and Mistletoe Avenue in the City of Stockton. Well development will be conducted using the air-lifting method. Compressed air is injected into the well to lilt water and sediment to the surface. As the groundwater exits the well, it is routed through a filtration system, a series of baffled tanks, and a Baker tank with a cartridge filtration system, before discharge into the local storm drain system. The approximate flow will start at 500 gallons per minute to a maximum of 1,200 gallons per minute for a period of seven days that will directly be discharged into the local storm drain system, then into the Stockton Diverting Canal. MONITORING AND REPORTING All Dischargers must notify Central Valley Water Board staff 24 hours before the start of each new discharge, as soon as noncompliance is anticipated, and when the discharge ceases. Therefore, the Discharger was required to submit a Pollution Prevention and Monitoring and Reporting Program (PPMRP)with the NOI. The PPMRP submitted by the Discharger complies with Attachment H and with Sections 1, IX, and Xof Attachment E of the Low Threat General Order, and is hereby approved only for the discharge of groundwater from Supply Well No. 21-02. Once a revised NOI and PPMRP is approved this NOA will be rescinded and a new NOA will be issued to cover for all discharges associated with the Stockton District Wide Potable Water System. Effluent and receiving water analytical monitoring shall be conducted as described in the approved PPMRP and the results submitted to the Central Valley Water Board on a quarterly basis unless specified otherwise. The Discharger must submit quarterly reports, as described in Attachment E, Section X, even if there is no discharge or receiving water flow during the reporting quarter, until the Discharger fomaily requests that coverage under this Order be terminated. GENERAL INFORMATION AND REQUIREMENTS The required annual fee (as specified in the annual billing YOU. from the State Water Resources Control Board)shall be submitted until the diha gelll isreceive terminated. To terminate coverage under the Low Threat General Order, the Dischargers must submit written notification to the Central Valley Water Board that the discharge regulated by this Low Threat General Order has ceased and is.no longer necessa received, then the Dischargers will be required tof pay additional annual fees asuest is tdetermine the State Water Resources Control Board. d by ENFORCEMENT Failure to comply with the Low Threat General Order may result in enforcement actions, which could include civil liability. Effluent limitation violations are subject to a Mandato Penalty(MMP) of$3,000 per violation. Late reports may be subject to an MMP of$3,000 for each period of 30 days Tate. When discharges do not occur Burin a_ o Minimum period, the Dischargers must still submit a quarterly report indicating that no diquarrls hargerO c urred to avoid being subject to enforcement actions. COMMUNICATION All monitoring report submittals, notification of the beginning and end of discharge, and questions regarding compliance and enforcement shall be directed to Spencer Joplin of the Central Valley Water Board's NPDES Compliance and Enforcement Unit. Mr. Joplin can be California Environmental Protection Agency Recycled Paper ea