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• 1 WASTE DISCHARGE REQUIREMENTS ORDER NO. 20 CITY OF LATHROP AND METROPOLITAN LIFE INSURANCE COMPANY CROSSROADS TREATMENT PLANT NO. 1,SAN JOAQUIN COUNTY time schedule for completing the comprehensive technical evaluation. The workplan shall be prepared and certified by a California registered civil engineer. The schedule to complete the evaluation shall be as short as practicable, and shall not exceed one year. h. By 30 January 2004, the Discharger shall submit a BPTC Evaluation Report and Implementation Workplan. The report shall include a comprehensive evaluation of the BPTC measures studied, a discussion of BPTC measures proposed for implementation (i.e.,recommendations for W WTF modifications), estimated concentration or mass loading reductions for each BPTC measure, specific methods the Discharger proposes to monitor and assure continuous optimal performance of BPTC measures, the source of funding, and proposed schedule for modifications. The schedule for full implementation shall be as short as practicable, and in no case shall it exceed four years past the Executive Officer's approval of the workplan unless specifically approved by the Board. The component evaluation, recommended improvements, and implementation schedule are subject to the Executive Officer's approval. i. By 30 January 2008, the Discharger shall submit a technical report that proposes specific numeric groundwater limitations that reflect full implementation of BPTC measures, and describe how these were determined considering actual data from compliance monitoring wells, impact reductions through full implementation of BPTC, reasonable growth, etc. The Discharger should submit results of a validated groundwater model to support its proposal. In addition, the technical report shall describe the overall status of compliance with implementation of BPTC measures and compliance with all groundwater limitations. j. At least 180 days prior to any biosolids removal and disposal, the Discharger shall submit a Biosolids Cleanout Plan. The plan shall include a detailed program and schedule for periodic pond cleanout and disposal of biosolids removed during pond cleanout, including at least the items listed in Attachment D of this Order. 2. Upon completion of tasks set forth in Provision F.1 the Board shall consider the evidence provided and make a determination regarding whether the Discharger has justified BPTC and the appropriate final numeric groundwater limitations that comply with Resolution 68-16. 3. If groundwater monitoring results show that the discharge of waste is causing groundwater to contain waste constituents in concentrations statistically greater than background water quality, then within 120 days of the request of the Executive Officer, the Discharger shall submit a report showing that degradation of the groundwater complies with SWRCB Resolution No. 68-16, i.e., that it is (a) in the best interest of the people of the state, (b) that best practical treatment and control measures have been implemented to reduce the amount of degradation, (c) that the groundwater degradation will not exceed applicable water quality objectives, and(d) that the degradation is confined to a specified area. 4. The Discharger shall comply with the Monitoring and Reporting Program No. , which is part of this Order, and any revisions thereto as ordered by the Executive Officer.