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WASTE DISCHARGE REQUIRES ORDER NO. 5-01-251 8 CITY OF LATHROP AND CROSSROADS CREA LLC WASTEWATER TREATMENT PLANT NO. 1 (CROSSROADS), SAN JOAQUIN COUNTY Resolution 68-16. Based on the results of the scheduled tasks, the Board may reopen this Order to reconsider groundwater limitations and other requirements to comply with Resolution 68-16. Water Recycling 43. The California Department of Health Services (DHS)requires that the the American Water Works Association (AW WA) Guidelines for Distribution of Non-Potable Water be implemented in design and construction of recycling equipment. The guidelines require installation of purple pipe, adequate signs, etc. Adequate separation of the recycled water lines,the domestic water lines, and the sewer lines shall be provided. Provision F.La requires the Discharger to submit, and receive approval from DHS, design reports for all domestic water lines and recycled water lines both at the wastewater treatment facility and the use areas prior to discharging wastewater in the new land application areas. 44. DHS has established statewide water recycling criteria in Section 60301 of Title 22 California Code of Regulations (hereafter Title 22). DHS revised the water recycling criteria contained in Title 22 on 2 December 2000. The revised Title 22 requires that all wastewater used for reclamation receive, at a minimum, secondary treatment. However, Title 22 does not define secondary treatment with respect to numerical limits for BODS and total suspended solids (TSS). According to DHS, for uses not requiring disinfection, treated wastewater should, at a minimum,be adequately oxidized, contain dissolved oxygen near saturation levels, and be nonputrescible when applied to land. 45. Section 60303 of Title 22 states that water recycling requirements shall not apply to the use of recycled water onsite at a water recycling plant, or wastewater treatment plant, provided access by the public to the area of onsite recycled water use is restricted. 46. Section 60323(a) of Title 22 states that no person shall produce or supply reclaimed water for direct reuse from a proposed water reclamation plant unless an engineering report is submitted for review and approval by DHS and the Board. Fodder and fiber crops and pasture for animals not producing milk for human consumption is considered a beneficial reuse. A Title 22 Engineering Report was submitted to DHS on 14 June 2001. DHS provided comments on the Title 22 Report; those comments are addressed in these WDRs. Provision F.La requires additional documents to be submitted to DHS prior to application of wastewater. 47. DHS has recommended that storm water discharges from land application areas be fully contained and returned year round to storage ponds. Storm water runoff from these areas can be allowed provided the following conditions are met: a. Disinfection of the wastewater to a 23 MPN/100 ml monthly median with a 240 MPN/100 ml daily maximum is to be maintained, or the irrigation area is disinfected prior to storm water release, as approved by DHS. b. Application of disinfected wastewater is ceased a minimum of 24 hours prior to a diversion of storm water to surface water drainage courses. c. During wastewater application, all tailwater and/or storm water is returned to the wastewater ponds.