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MONITORING AND REPORTING PROGRAM NO.R5-2004-0828 -2- HERMAN 2- HERMAN&HELEN'S MARINA 15135 EIGHT MILE ROAD STOCKTON, SAN JOAQUIN COUNTY SAMPLING FREQUENCY' Quarterly Semi-annuallyZ Wells Mff-2 MW-3 MW-4 MW-5 MW-6 MW-7 MW-8 MW-10 MW-11 MW-12' MW-14 MW-9 MW-13 EW-1 DDN DDS IDCE IDCW New Wells All wells shall be monitored quarterly for water levels and the presence and thickness of free product. 2 Wells shall be sampled semi-annually during the second and fourth quarters. 3 These wells may be sampled semi-annually only after samples have been collected for 4 consecutive quarters. Constituents EPA Analytical Method Maximum Practical Quantitation Limit(ftg/l° Depth to Groundwater --- --- TPH as gasoline 8015M 50 TPH as diesel 8015M 50 Benzene 8020 or 8260B 0.5 Toluene 8020 or 8260B 0.5 Ethylbenzene 8020 or 8260B 0.5 Xylene 8020 or 8260B 0.5 MTBE5 8260B 0.5 TBA' 8260B 5 TAMES 8260B 0.5 DIPE' 8260B 0.5 ETBE' 8260B 0.5 Ethanols 8260B 50 Methanols 8260B 100 ° For nondetectable results. All concentrations between the Method Detection Limit and the Practical Quantitation Limit shall be reported as trace. S Fuel oxygenates,including MTBE,methanol, ethanol,TBA,TAME,di-isopropyl ether(DIPS),and ETBE shall be analyzed in all monitoring wells during two monitoring events in the second and fourth quarters. If results are nondetectable for fuel oxygenates for both sampling events at or below the Practical Quantitation Limit,no further monitoring for oxygenates is required in that well. If a fuel oxygenate is detected, it shall be added to the monitoring program for the well in which it was detected. 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 Board within 48 hours of any unscheduled shutdown of any soil vapor and/or groundwater extraction system. 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. Quarterly reports shall be submitted to the Board by the 1st day of the second month following the end of each calendar quarter (i.e., by 1 February, I May, 1 August, and 1 November) until such time as the Executive Officer determines that the reports are no longer necessary. Each quarterly report shall include the following minimum information: