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WASTE DISCHARGE REQ*MENTS ORDER NO. R5-2004-00219 -50- CITY OF MANTECA, CITY OF LATHROP AND DUTRA FARMS WASTEWATER QUALITY CONTROL FACILITY SAN JOAQUINCOUNTY 20. The Discharger shall enforce the Pretreatment Standards promulgated under Sections 307(b), 307(c) and 307(d) of the Clean Water Act. The Discharger shall perform the pretreatment functions required by 40 CFR Part 403 including but not limited to: a. Adopting the legal authority required by 40 CFR 403.8(f)(1); b. Enforcing the Pretreatment Standards of 40 CFR 403.5 and 403.6; C. Implementing procedures to ensure compliance as required by 40 CFR 403.8(f)(2); and d. Providing funding and personnel for implementation and enforcement of the pretreatment program as required by 40 CFR 403.8(f)(3). 21. The Discharger shall submit to the Regional Board by 31 May 2004 a revised pretreatment program that corrects,to the satisfaction of the Regional Board,the deficiencies noted in the October 2001 Pretreatment Audit and the 22 January 2003 letter from the Regional Board staff. Upon submittal of an adequate revised pretreatment program, the Regional Board will reopen this Order to approve the pretreatment program. The Discharger shall implement its approved pretreatment program and the program shall be an enforceable condition of this permit. If the Discharger fails to perform the pretreatment functions, the Regional Board, the State Board or the USEPA may take enforcement actions against the Discharger as authorized by the Clean Water Act. The pretreatment program has not previously been fully implemented. The Discharger shall be in full compliance with all pretreatment program requirements by 1 October 2004, and shall submit a report by 1 November 2004 that outlines actions taken to implement the program. 22. The Discharger shall implement, as more completely set forth in 40 CFR 403.5,the necessary legal authorities,programs, and controls to ensure that the following incompatible wastes are not introduced to the treatment system,where incompatible wastes are: a. Wastes that create a fire or explosion hazard in the treatment works; b. Wastes which will cause corrosive structural damage to treatment works,but in no case wastes with a pH lower than 5.0,unless the works is specially designed to accommodate such wastes; C. Solid or viscous wastes in amounts which cause obstruction to flow in sewers, or which cause other interference with proper operation or treatment works; d. Any waste, including oxygen demanding pollutants (BOD, etc.),released in such volume or strength as to cause inhibition or disruption in the treatment works, and subsequent treatment process upset and loss of treatment efficiency;