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Groundwater VOC and Fuel General Permit ORDER NO.R2-2012-0012 <br /> NPDES NO.CAG912002 <br /> c. pH: The pH shall not be depressed below 6.5 nor raised above <br /> 8.5, nor caused to vary from normal ambient pH by more <br /> than 0.5 pH units. <br /> d. Un-ionized Ammonia 0.025 mg/L as an annual median; 0.16 mg/L as a maximum <br /> for Central Bay and upstream; 0.4 mg/L as a maximum for <br /> Lower Bay. <br /> e. Nutrients Waters shall not contain biostimulatory substances in <br /> concentrations that promote aquatic growths to the extent <br /> that such growths cause nuisance or adversely affect <br /> beneficial uses. <br /> 3. Discharges shall not cause or contribute to a violation of any applicable water quality standard <br /> for receiving waters adopted by the Regional Water Board or the State Water Board as required <br /> by the CWA and regulations adopted there under. If more stringent applicable water quality <br /> standards are promulgated or approved pursuant to CWA section 303, or amendments thereto, <br /> the Regional Water Board will revise and modify this Order in accordance with such more <br /> stringent standards. <br /> B. Groundwater Limitations—No discharges to groundwater authorized by this Order <br /> VI.PROVISIONS <br /> A. Standard Provisions <br /> Dischargers shall comply with federal Standard Provisions included in Attachment D of this <br /> Order. <br /> B. Monitoring and Reporting Program Requirements <br /> 1. Dischargers shall comply with the Monitoring and Reporting Program(Attachment E), and <br /> future revisions thereto, including applicable sampling and reporting requirements in the <br /> standard provisions listed in VI.A, above. <br /> 2. Dischargers authorized under this Order,especially those Dischargers with flow rates <br /> exceeding 10 gallons per minute,may be required to comply with additional monitoring <br /> requirements. The Executive Officer will specify such additional monitoring requirements in <br /> the Authorization to Discharge letter. Examples of additional monitoring that may be required <br /> are listed below: <br /> a. Monitoring in response to a complaint received about a facility authorized to discharge <br /> under this permit, <br /> b. Storm water monitoring, <br /> c. Dioxins and furans monitoring, <br /> d. Regional Monitoring Program(RMP)monitoring, <br /> e. Additional discharge observations,and <br /> f. Additional effluent and ambient priority pollutant scans. <br /> 13 <br /> Limitations and Discharge Requirements <br />