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MONITORING AND REPORTING PROGRAM FOR CLOSURE OF KEARNEY-KPF -3- SURFACE IMPOUNDMENTS SAN JOAQUIN COUNTY WATER QUALITY PROTECTION STANDARDS Standards for Ground Waters "Background" standards for ground water have not been established for the facility, because the ground water flow direction fluctuates and changes from east to west. The assessment program should provide adequate data to determine "background" for the ground water at the facility. Therefore, quarterly and annual ground water samples from the facility shall be used to determine "background" and shall be statistically analyzed for each of the parameters and constituents listed under "GROUND WATER MONITORING" above. Analyses shall account for measurement errors in sampling and analysis. Data from these statistical analyses shall be reported to the Board by 19 January 1990 for use by the Board in determining water quality protection standards for ground water at this site. Statistical Procedures for Determining Significant Increases Statistical procedures for determining the significance of increases in indicator parameters and waste constituents shall be established using the procedures outlined in Section 2555(h) and 2595(g) of Subchapter 15. REPORTING In reporting the monitoring data, the Discharger shall arrange the data in tabular form so that the date, 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 lack thereof. Quarterly monitoring reports shall be submitted to the Board by the last day of the month following the quarter in which the samples were taken or observations made. The fourth quarterly report shall contain an annual summary of the data from the previous year which shall be presented in tabular and graphical form. The report shall include a discussion of compliance with the waste discharge requirements. The results of any monitoring done more frequently than required at the locations specified herein shall be reported to the Board.