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REVISED MONITORING ID REPORTING PROGRAM NO. R5-200.050 -4- IMPERIAL HOLLY CORPORATION HOLLY SUGAR CORPORATION dba SPRECKELS SUGAR COMPANY SPRECKELS SUGAR COMPANY TRACY FACILITY SAN JOAQUIN COUNTY REPORTING The Discharger shall report field and laboratory test results in semi-annual monitoring reports. The Discharger shall submit the semi-annual monitoring reports to the Board by 15 July and 15 January. The Discharger shall arrange the data in tabular form so that the date, the constituents, the concentrations, and the units are readily discernible. A discussion of the monitoring results shall precede the tabular summaries. As required by the California Business and Professions Code Sections 6735, 7835, and 7835.1, all reports shall be prepared by a registered professional engineer or geologist(or their subordinate) and signed by the registered professional. Each semi-annual report is to include the following information: (a) a discussion of the monitoring results and compliance with this MRP and the WDRs; (b) tabulated cumulative monitoring data including depth to groundwater measurements, groundwater elevations above mean sea level, groundwater analytical data, wastewater analytical data, and monthly average wastewater discharge rate in gallons per day; (c) a groundwater contour map prepared using groundwater elevation data that shows the hydraulic gradient, flow direction and estimated flow velocity; (d) a copy of the laboratory analytical reports and chain of custody; and (e) the status of PCC waste removal including amount removed since the previous semi-annual report and the amount still remaining at the site. The results of any monitoring done more frequently than required at the locations specified in the MRP shall also be reported to the Board. The Discharger shall implement the above monitoring program on the effective date of this Order. Ordered by: �'►^� THOMAS R. PINKOS, Executive Officer b " Date