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WASTE DISCHARGE REQUIREMENTS ORDER NO.R5-2002-0225 20 Y ALPINE PACKING COMPANY,INC. WASTEWATER TREATMENT SYSTEM,SAN JOAQUIN COUNTY Monitoring Well Installation Report of Results." The report shall describe the installation and development of the new monitoring wells and explain any deviation from the approved workplan. h. By 31 December 2004,the Discharger shall submit a Background Groundwater and Percolate Quality Study Report. For each groundwater monitoring parameter/constituent identified in the MRP, the report shall present a summary of monitoring data, calculation of the concentration in background monitoring wells, and comparison of background groundwater quality to that in wells used to monitor the facility. Determination of background quality shall be made using the methods described in Section 20415(e)(10) of Title 27, and shall be based on data from at least four consecutive quarterly(or more frequent) groundwater monitoring events. For each monitoring parameter/constituent, the report shall compare measured concentrations for compliance monitoring wells with the calculated background concentration. Subsequent use of a concentration as a final groundwater limitation will be subject to the discretion of the Executive Officer. If the wastewater discharge is determined to have, or is likely to, impact groundwater and/or percolate quality based on the Groundwater Monitoring Summary Report or subsequent monitoring reports, then a Mitigation Plan shall be submitted within 90 days of request by the Executive Officer. The plan shall address groundwater contaminants identified in the Groundwater Monitoring Summary Report, evaluate contaminant control alternatives, and select a preferred contaminant control alternative. The selected contaminant control alternative must comply with State Water Resources Control Board Resolution 68-16 and be consistent with the most recent Basin Plan. The Plan must include a project schedule for design and construction. If the Mitigation Plan concludes that wastewater cannot be economically treated to a level that is protective of groundwater quality,then the wastewater will be classified as designated waste in accordance with California Water Code Section 13173 and management of the site will be transferred to the Regional Board's Title 27 program. 3. The Discharger shall comply with the Monitoring and Reporting Program No. R5-2002-0225, which is part of this Order, and any revisions thereto as ordered by the Executive Officer. 4. The Discharger shall comply with the "Standard Provisions and Reporting Requirements for Waste Discharge Requirements", dated 1 March 1991, which are attached hereto and by reference a part of this Order. This attachment and its individual paragraphs are commonly referenced as "Standard Provision(s)." 5. If the Discharger can demonstrate to the satisfaction of the Executive Officer that higher BOD loadings than that specified in Effluent Limitation No. C.3 will not cause or contribute to cause waste constituents to leach into and degrade underlying groundwater, or cause any other violation of the terms and conditions of this Order,then this Order may be reopened for consideration of revision of BOD loading limits. The demonstration shall include the submittal of a technical report that describes, at a minimum, the results of a field demonstration project conducted over the course of at least two years on similar soil types as those in the land treatment unit and using similar