SITE INFORMATION AND CORRESPONDENCE CASE 2

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WASTE DISCHARGE REQUIREMENTS ORDER NO. • - 16- CALIFORNIA NATURAL PRODUCTS WASTEWATER TREATMENT FACILITY SAN JOAQUIN COUNTY adjustments, as necessary, to preclude nuisance conditions (e.g., standing water, runoff from landscaped areas, and objectionable odors from ponded wastewater). It shall also include a nuisance condition troubleshooting flowchart and a description of notification requirements if bypass occurs. Operating personnel shall keep a copy of the O&M Plan at the facility for reference. Key operating personnel shall be familiar with its contents. C. By 17 June 2002, the Discharger shall submit a workplan for characterization of groundwater quality. The workplan shall describe the installation of additional wells to allow evaluation of groundwater quality upgradient of the application areas. Monitoring wells shall be constructed to yield representative samples from the uppermost layer of the uppermost aquifer and to comply with applicable well standards. The workplan shall be consistent with, and include the items listed in, the first section of Attachment C, "Items to be Included in a Monitoring Well Installation Workplan and a Monitoring Well Installation Report of Results." d. By 16 September 2002, the Discharger shall submit a groundwater well installation report. The report shall be consistent with, and include the items listed, in the second section of Attachment C. e. By 30 November 2003, the Discharger shall submit a Background Groundwater 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 all four land disposal areas. Determination of background quality shall be made using the methods described in Title 27, Section 20415(e)(10), 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. If the Background Groundwater Quality Study Report shows that the wastewater discharge has impacted, or is likely to impact groundwater quality, then by 1 March 2004 the Discharger shall submit Groundwater Mitigation Plan which shall evaluate contaminant control alternatives, describe a preferred alternative, and proposed a timeline to meet the Groundwater Limitations of this Order. The selected contaminant control alternative must comply with State Water Resources Control Board Resolution No. 68-16 and be consistent with the most recent Basin Plan. 3. The Discharger shall comply with the Monitoring and Reporting Program No._, which is a 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)."