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MONITORING AND REPORTING PROGRAM NO. R5-2003-0044 -3- <br /> GENERAL ORDER FOR LAND DISPOSAL <br /> OF GROUNDWATER OR SURFACE WATER <br /> FROM CLEANUP OF PETROLEUM FUEL POLLUTION <br /> Type of <br /> Constituents Units Sample Frequency <br /> MtBE µg/1 Grab Monthly** <br /> Lead(total)* µg/1 Grab Monthly** <br /> Lead (organic) µg/1 Grab Monthly** <br /> Methanol µg/1 Grab Monthly** <br /> Ethanol µg/l Grab Monthly** <br /> Tertiary Butyl Alcohol (TBA) µg/1 Grab Monthly** <br /> Di-isopropyl Ether (DIPE) µg/1 Grab Monthly** <br /> Ethyl Tertiary Butyl Ether(ETBE) µg/1 Grab Monthly** <br /> Tertiary Amyl Methyl Ether µg/1 Grab Monthly* <br /> (TAME) <br /> 1,2-Dichloroethane (1,2-DCA) µg/1 Grab Monthly** <br /> 1,2-Dibromoethane (EDB) µg/1 Grab Monthly** <br /> -- Naphthalene µg/1 Grab Monthly** <br /> Polynuclear Aromatic Hydrocarbons µg/1 Grab Monthly** <br /> * If lead is not detected in the first 2 sampling events, then testing may be discontinued thereafter, upon <br /> approval by Regional Board staff. <br /> ** 1) Analyses shall be conducted weekly for four consecutive weeks following initial discharge from the <br /> treatment system. 2) If any sample shows detectable TPH, benzene, toluene, ethylbenzene, xylenes, <br /> Naphthalene, 1,2-Dichloroethane, 1,2-Dibromoethane, Polynuclear Aromatic Hydrocarbons, MtBE or <br /> other oxygenates, the Discharger shall immediately evaluate the treatment system, resample within three <br /> days of laboratory notification and reanalyze the effluent for the detected constituent(s), and shall <br /> continue sampling the effluent on a weekly basis until the constituent(s) concentrations are below <br /> permitted levels. Once four consecutive weeks are below permitted levels, monthly sampling may be <br /> initiated. 3) If a detectable concentration is determined to be present in wastewater, the frequency will <br /> revert back to weekly. 4) If a constituent is not present in the influent sample, then the testing for that <br /> constituent may be discontinued, upon approval by Regional Board staff, until detected in the influent. <br /> Appropriate quantitation(or reporting)limits are described in Part C.1 of this Order. <br /> GROUNDWATER MONITORING <br /> The groundwater monitoring program submitted with the Report of Waste Discharge and approved <br /> by the Executive Officer, shall constitute the groundwater monitoring program. <br /> Prior to construction, plans and specifications for groundwater monitoring wells and/or extraction <br /> wells shall be submitted to the Regional Board staff for review and approval. <br /> Quarterly reports are required in Section 2652(d) of the Underground Tank Regulation, Chapter 16, <br /> Division 3, Title 23, of the California Code of Regulations. Recommended reporting formats are <br /> included in the Tri-Regional Recommendations and Appendix A. Groundwater monitoring results, <br />