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WASTE DISCHARGE REQLTSMENTS ORDER NO. R5-2004-0020 -27- CITY OF MANTECA, CITYATHROP AND DUTRA FARMS WASTEWATER QUALITY CONTROL FACILITY SAN JOAQUIN COUNTY requires the Discharger to develop and submit for approval by the Regional Board an acceptable industrial pretreatment program. 64. The Discharger submitted a draft pretreatment program to the Regional Board for approval. The Regional Board, in an October 2001 Pretreatment Audit, identified areas of the program that are deficient or not implemented. The Regional Board staff, on 22 January 2003,provided comments to the Discharger identifying provisions of the City's Waste Ordinance and the Interjurisdictional Agreement between the City of Manteca and the Lathrop County Water District that are deficient. This Order provides a compliance schedule for the Discharger to submit a pretreatment program that corrects the deficiencies noted in the October 2001 Pretreatment Compliance Audit and in the 22 January 2003 letter. The Regional Board will reopen this Order to approve the pretreatment program upon submittal of a program that corrects the deficiencies. Certain areas of the pretreatment program have not been fully implemented pending approval of the program. This Order requires full compliance with all pretreatment program requirements by 1 October 2004. OTHER 65. Effluent limitations, and toxic and pretreatment effluent standards established pursuant to Sections 301 (Effluent Limitations), 302 (Water Quality Related Effluent Limitations), 304 (Information and Guidelines), and 307 (Toxic and Pretreatment Effluent Standards) of the Clean Water Act(CWA) and amendments thereto are applicable to the discharge. 66. The discharge is presently governed by Waste Discharge Requirements Order No. 5-01-007, adopted by the Regional Board on 26 January 2001. The discharge of biosolids is also presently governed by Waste Discharge Requirements Order No. 92-052, adopted by the Regional Board on 27 March 1992. 67. The action to adopt an NPDES permit is exempt from the provisions of Chapter 3 of the California Environmental Quality Act(CEQA) (Public Resources Code Section 21000, et seq.), requiring preparation of an environmental impact report or negative declaration in accordance with Section 13389 of the California Water Code. 68. The City of Manteca has certified a final environmental impact report (EIR) in accordance with the California Environmental Quality Act(CEQA) (Public Resources Code Section 21000, et seq.), and the State CEQA Guidelines. The Regional Board has considered the EIR and, after review of the available data, finds significant impacts to water quality could occur after the proposed expansion. However, these waste discharge requirements will avoid the significant impacts on water quality by: (a) reducing BOD,TSS,pathogen and metals concentrations with the addition of tertiary level treatment, (b) reducing ammonia, nitrate and nitrite with the additions of nitrification and denitrification treatment, (c)mitigating the thermal impacts by discharging treated wastewater on outgoing tides only, and(d)reducing the salinity of the discharge through the implementation of pollution prevention measures or treatment.