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• • MONITORING AND REPORTING PROGRAM ORDER NO. R5-2008-0149-041 4 RIPON FARM SERVICE SAN JOAQUIN COUNTY ESTABLISHMENT OF BACKGROUND CONCENTRATION VALUES The Discharger shall develop background values for concentrations of dissolved iron, dissolved manganese, total organic carbon, total dissolved solids and electrical conductivity in groundwater following the procedures found in CCR Section 20415(e) (10). The Discharger shall submit a proposal to develop background concentrations by 1 December 2012. REPORTING When reporting the data, the Discharger shall arrange the information in tabular form so that the date, the constituents, and the concentrations are readily discernible. The data shall be summarized in such a manner as to illustrate clearly the compliance with this Order. In addition, the Discharger shall notify the Central Valley Water Board within 48 hours of any unscheduled shutdown of any soil vapor and/or groundwater extraction system. The results of any monitoring done more frequently than required at the locations specified in the Monitoring and Reporting Program shall also be reported to the Central Valley Water Board. As required by the California Business and Professions Code Sections 6735, 7835, and 7835.1, all reports shall be prepared by a registered professional or their subordinate and signed by the registered professional. The Discharger shall submit electronic data tables to Central Valley Water Board staff within 6 weeks of a sampling event occurring in the first 3 months of the treatability study. In the first year following the implementation of the treatability study, reports shall be submitted quarterly. Quarterly reports shall conform to the requirements of the California Code of Regulations, Title 23, Division 3, Chapter 30. The reports shall be submitted electronically over the internet to the Geotracker database system by the 1 st day of the second month following the end of each calendar quarter by 1 February, 1 May, 1 August, and 1 November or a due date as deemed appropriate by Central Valley Water Board staff until such time as the Executive Officer determines that the reports are no longer necessary. After one year has passed since implementation, report submittal may be semi-annual. Hard copies of quarterly reports shall be submitted to the Central Valley Water Board by the 1st day of the second month following the end of each calendar quarter (i.e., by 1 February, 1 May, 1 August, and 1 November), and semi-annual reports shall be submitted by 1 February and 1 November, or a due date as deemed appropriate by Central Valley Water Board staff. Each report shall include the following minimum information: (a) a description and discussion of the groundwater sampling event and results, including trends in the concentrations of pollutants and groundwater elevations in the wells, how and when samples were collected, and whether the pollutant plume(s) is/are delineated;