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10/30/2000 08: 38 2099378137 STORMWATER PAGE 04 <br /> GENERAL PRETREATMENT INDUSTRIAL USERS <br /> SELF-MONITORING SAMPLE PROGRAM <br /> FORMER THRIFTY OIL COMPANY STATION #172 <br /> 7647 Pacific Ave <br /> Stockton, CA <br /> Permittee shall establish a Self-Monitoring Schedule as indicated: <br /> Sample Point: Sample port after activated carbon filter treatment. <br /> Pollutant Frequency Type Sample Method <br /> Trace Metals 2 X Year* <br /> Cadmium Grab 213.1 <br /> Chromium Grab 218.8 <br /> Copper Grab 220.1 <br /> Lead Grab 239.1 <br /> Nickel Grab 249.1 <br /> Zinc Grab 289.1 <br /> Total Petroleum 2 X Year* Grab 1664 <br /> Hydrocarbons <br /> B, T, X, E 2 X Year" Grab 8020 & 8015 <br /> Flow 2 X Year* Continuous <br /> H 2 X Year" Grab 15Q 1 <br /> Self-Monitoring reports must be submitted to the City of Stockton Environmental <br /> Control Section no later than January 15, and July 15, of each year. A11 reports <br /> shall include a signatory statement. <br /> Permittee shall report the results all samples collected at the discharge point <br /> dunng the duration of the Permit. <br />