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f-1EALTH AND SAKTATi'ON CODE D- Each business establishment for which a frequency of sampling, point of discharge,volumetric . grease interceptor is required shall have an or seasonal restrictions, or other discharge interceptor, which shall serve onty that business conditions and limitations will be as specified in the establishment. Discharge Permit which shall be issued by the E. Buildings remodeled for use requiring Director of Municipal Utilities. interceptors shall be subject to these regulations. 2. Discharges shall not exceed a concentration F. Waste discharge from fixtures and of 4.57 mg/l of Total Toxic Organics (as currently equipment in the above-mentioned types of listed by the Environmental Protection Agency for establishments which may contain grease or other categorical electroplating dischargers, 40 CFR objectionable materials, including, but not limited to, 413.02 ()). Compliance with this provision will be scullery sinks, pot and pan sinks, dishwashers, food enforced by grab samples obtained no less than waste disposals, soup kettles, etc. and floor drains once during the permit term. Analytical procedures located in areas where such objectionable materials will be in accordance with EPA rules in Guidelines may exist, may be drained into the sanitary waste Establishing Test Procedures for the Analysis of through the interceptor when approved by the Pollutants: Final Rule (40 CFR Part 136) Methods Director. Exception:toilets,urinals, and other fixtures 624 and 625_ In addition, analysis by the permittee containing fecal material may not flow through the for benzene, toluene, xylene and ethylbenzene interceptor. (BTXE)will be required at frequencies coinciding with G. The interceptors shall be maintained in the sampling and analysis for total petroleum efficient operating condition by periodic removal of hydrocarbons. the accumulated grease. No such collected grease 3. The discharger shall provide a recording shall be introduced into any drainage piping or public Lower Explosive Limit(LEL) monitor. Installation will or private sewer. be at a location in the discharge system prior to entry H. Abandoned grease interceptors shall be into the sanitary sewer. The monitor is to be emptied and filled as required for abandoned septic calibrated in a manner that indicates the percentage tanks in Section 1119 of the Uniform Plumbing Code. of LEL of gasoline and shall be connected to the I. The cover for grease interceptors shall be facility in such a way that an alarm wrill be triggered at one-half inch (127 steel plate reinforced as required ten percent (10%) of the LEL of gasoline and the by the Director,said reinforcing to depend upon the entire facility twill be automatically shut dovam. The load to be imposed on the plate. Except as monitor shall be calibrated and maintained with a otherwise provided,the cover shall be gas-tight on all quality assurance program satisfactory to the interceptors and the waste shall enter the interceptor Director of Municipal Utilities. If, after a period of through the inlet pipe only. evaluation, it is determined by the Director or a J. Interceptors shall be installed in such a designated representative that continuous recording manner that drainage from area outside the area is no longer needed, the provision of a recorder may intended to be served may not enter, be deleted,.-- (Added eleted -(Added by Ordinance 3712C.S.—Effective Jan. 5, 4. The Director or a designated representative 1984) shall have access to the facility shutdown switch as well as copies of keys to all locked enclosures at the SEC.7-089.20. DISCHARGE OF PETROLEUM site and shall be provided access to the facility for CONTAMINATED purposes of inspection. GROUNDWATER: 5. The discharger shall provide flow monitoring It shall be unlawful for any person to discharge and recording equipment and sampling taps or petroleum contaminated groundwater to the sanitary equipment in order to comply with these rules. sewer collection system of the City of Stockton, 6. The discharger shall insure that all except as provided for hereunder, and in accordance pretreatment facilities including, but not limited to, with the following conditions and restrictions: flow measuring and LEL monitors, are maintained in 1. The maximum allowable concentration of proper working order at all times. All measuring total petroleum hydrocarbons in the discharge devices are to be calibrated for accuracy at a entering the sanitary sewer shall be 100 mg/l. frequency as prescribed by the manufacturer of the Compliance with this provision will be enforced by monitoring device by a qualified technician approved periodic self monitoring and laboratory analysis by by the Director. the discharger fortotal petroleum hydrocarbons over 7. In the event a required flow measuring the course of the discharge. Sample collection, device is found to be inoperative or to provide 7-35