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CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD CENTRAL VALLEY REGION MONITORING AND REPORTING PROGRAM NO.97-229 FOR J. IL SRAPLOT COMPANY LATHROP FACILITY STORMWATER SURFACE IlvIPOUNDMENTS AND CLASS II SURFACE IMPOUNDMENTS SAN JOAQUIN COUNTY Ground water monitoring data collected from monitoring wells downgradient of the formerly asphalt- lined pond indicate that past discharges from this WMU may have resulted in a release to ground water and degraded ground water quality with elevated levels of total dissolved solids, particularly sulfates, sodium, chloride, nitrates and ammonia and the water quality standards have been exceeded. The Discharger has begun a corrective action program that includes retrofitting of the asphalt-lined pond and two other surface impoundments to meet the requirements found in California Code of Regulations, Title 27; Division 2;Subdivision 1 (hereafter Title 27). Compliance with this Monitoring and Reporting Program, and with the companion Standard Provisions and Reporting Requirements, is ordered by Waste Discharge Requirements (WDRs) Order No.97-229. Failure to comply with this Program, or with the Standard Provisions and Reporting Requirements, constitutes noncompliance with these WDRs and with the Water Code, which can result in the imposition of civil monetary liability. . The Discharger shall maintain water quality monitoring systems that are appropriate for detection and evaluation monitoring and that comply with the provisions of Title 27. A. REPORTING The DisRharger shall report monitoring data and information as required in the Monitoring and Reporting Program and as required in the Standard Provisions and Reporting Requirements. Reports that do not comply with the required format willbe REJECTED and the Discharger shall be deemed to be in noncompliance with these waste discharge requirements. In reporting the monitoring data required by this program, the Discharger shall arrange the data in tabular form so that the data, the constituents, the concentrations, and the-units are readily discernible. The data shall be summarized in such a manner so as to illustrate clearly the compliance with waste discharge requirements or the lack thereof A short discussion of the monitoring results, including notations of any water quality violations, shall precede the tabular summaries. Quarterly, and annual monitoring reports shall be'submitted to the Board by the 30th day of the month following the calendar quarter in which the samples were taken or observations made.