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INFORMATION SHEET ORDER NO. R5-2003-0044 -3- GENERAL ORDER FOR LAND DISPOSAL OF GROUNDWATER OR SURFACE WATER FROM CLEANUP OF PETROLEUM POLLUTION Constituent W Q Objective Limit Reference for Limit Gasoline Toxicity 21 USEPA Superfund Provisional Cancer Slope Factor Taste and Odors 5 Taste and Odor Threshold Lead(inorganic) Chemical Constituents 15 California Primary MCL Chemical Constituents 5000 Water Quality for Agriculture(Ayers& Wescot) Toxicity 2 California Public Health Goal Tetraethyl lead Toxicity 0.0007 USEPA IRIS Reference Dose 1,2-Dibromoethane Chemical Constituents 0.05 California Primary MCL (ethylene dibromide, Toxicity 0.0097 Cal/EPA Cancer Potency Factor EDB 1 2-Dichloroethane Chemical Constituents 0.5 California Primary MCL (ethylene dichloride, Toxicity 0.4 California Public Health Goal 1,2-DCA) Taste and Odors 7000 Taste and Odor Threshold Methyl tert-Butyl Ether Chemical Constituents 13 California Primary MCL (MtBE) Chemical Constituents 5 California Secondary MCL -- Toxicity 13 California Public Health Goal Taste and Odors 5 Taste and Odor Threshold Di-isopropyl Ether. Tastes and Odors 0.8 Taste and Odor Threshold IPE Tertiary Butyl Alcohol Toxicity 12 DHS Drinking Water Action Level TBA Taste and Odors 290,000 Taste and Odor Threshold Ethanol Taste and Odors 760,000 Taste and Odor Threshold Methanol Toxicity 3500 USEPA IRIS Reference Dose Taste and Odors 740,000 Taste and Odor Threshold Carcinogenic PAHs— Chemical Constituents 0.2 California Primary MCL for sum as benzo(a)pyrene benzo(a)pyrene equivalents Toxicity 0.004 California Public Health Goal for benzo(a)pyrene Naphthalene Toxicity 170 DHS Drinking Water Action Level Taste and Odors 21 Taste and Odor Threshold I. MCL=Maximum Contaminant Level as set by the California Department of Health Services. 2. IRIS=USEPA Integrated Risk Information System reference dose as a drinking water level. 3. California Public Health Goal as determined by the California Office of Environmental Health Hazard Assessment. A Report of Waste Discharge and filing fee will be submitted by each proposed Discharger, providing information on the discharge as detailed in Attachment A. If the Executive Officer finds that the proposed discharge qualifies for coverage under this Order, the Discharger shall be issued a Notification of Applicability statement. Upon completion of treatment and cessation of the discharge, the Discharger may request official termination of coverage under this General Order from the Executive Officer. Failure to do so will result in the Discharger's continuing responsibility for payment of the annual fee associated with this Order.