SITE INFORMATION AND CORRESPONDENCE 1980-1999

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WASTE DISCHARGE REQ*MENTS ORDER NO. 5-00- • -8- CITY OF LODI WHITE SLOUGH WATER POLLUTION CONTROL PLANT SAN JOAQUIN COUNTY of reclaimed water, and has developed guidelines for specific uses. 32. The Board has consulted with the Department of Health Services and San Joaquin County Mosquito Abatement District, and considered their recommendations regarding public health aspects for use of reclaimed water. 33. The United States Environmental Protection Agency(EPA)has promulgated biosolids reuse regulations in 40 CFR 503, Standards for the Use or Disposal of Sewage Sludge, which establish management criteria for protection of ground and surface waters, set application rates for heavy metals, and establish stabilization and disinfection criteria. The Board is using the Standards in 40 CFR 503 as guidelines in establishing this Order,but the Board is not the implementing agency for the 40 CFR 503 regulations. The Discharger may have separate and/or additional compliance, reporting and permitting responsibilities to EPA, which are not covered by this Order. 34. 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 21100, et seq.), requiring preparation of an environmental impact report or negative declaration in accordance with Section 13389 of the California Water Code. 35. The City of Lodi has certified a final environmental impact report (EIR) and a supplemental EIR in accordance with the California Environmental Quality Act (Public Resources Code Section 21000, et seq.), and the State Guidelines for the plant expansion. The project may have the following significant impacts on water quality: a. Potential contamination of groundwater or Interstate 5 borrow pits with nitrogen compounds and other pollutants if agronomic rates of effluent and sludge application are exceeded on the City-owned agricultural fields. b. Potential health hazard for full water contact recreationists in Dredger Cut. c. Potential decrease of dissolved oxygen in White Slough and Bishop Cut due to an increase in pollutants (BOD and suspended solids) discharged. The Board has reviewed the EIR and supplemental EIR, and these waste discharge requirements will mitigate or avoid the significant impacts on water quality listed above. This Order requires effluent and sludge be applied at levels not to exceed agronomic rates. Dredger Cut is required to be posted as a wastewater disposal area, and the Order requires the plant be upgraded to provide tertiary treatment. This Order also includes more stringent effluent limits for BOD and prohibits surface water discharges when dissolved oxygen in the receiving water is less than 5 mg/l.