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f <br /> U <br /> 1 <br /> MONITORING AND REPORTING PROGRAM NO.R5-2003-0044 -2- <br /> GENERAL ORDER FOR LAND DISPOSAL <br /> OF GROUNDWATER OR SURFACE WATER <br /> FROM CLEANUP OF PETROLEUM FUEL POLLUTION <br /> Constituents Units Sample Frequency <br /> 1,2-Dichloroethane (1,2-DCA) gg/l Grab Monthly** <br /> 1,2-Dibromoethane(EDB) gg/l Grab Monthly** <br /> Naphthalene gg/l Grab Monthly** <br /> Polynuclear Aromatic gg/l Grab Monthly** <br /> Hydrocarbons*** <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 /> ** Influent samples shall be taken in conjunction with effluent samples. If three consecutive monthly <br /> sampling events result in a constituent having a non-detectable concentration, at appropriate detection <br /> limits, and the constituent is not present in the groundwater, or surface water being treated, then the <br /> sampling frequency shall be reduced to annually for that constituent. Required detection limits are <br /> described in Ordered C.I of this Order. <br /> ••• Polynuclear Aromatic Hydrocarbons; the sum of benzo[a]pyrene, benz[a]anthracene, <br /> benzo[b]fluoranthene, benzo[j]fluoranthene, benzo[kjfluoranthene, dibenz[a,j]acridine, <br /> dibenz[a,h]acridine, 7H-dibenzo[c,g]carbazole, dibenzo[a,e]pyrene, dibenzo[a,h]pyrene, <br /> dibenzo[a,i]pyrene, dibenzo[a,]]pyrene, indenol[1,2,3-c,d]pyrene, 5-methylchrysene, 1-nitropyrene, 4- <br /> nitropyrene, 1,6-dinitropyrene, 1,$-dinitropyrene, 6-nitrocrysene,2-nitrofluorene and chrysene. <br /> EFFLUENT MONITORING <br /> Effluent samples shall be collected downstream from the last connection through which wastes can <br /> be admitted into the discharge. Effluent samples should be representative of the volume and nature <br /> of the discharge. Time of collection of a grab sample shall be recorded. The following shall <br /> constitute the effluent monitoring program: <br /> Type of <br /> Constituents Units Sample Frequency <br /> Flow mgd continuous Monthly <br />' Specific Conductivity µmhos/cm Grab Monthly <br /> P14 pH units Grab Monthly <br /> Total Dissolved Solids mg/1 Grab Monthly <br /> Total Petroleum Hydrocarbons µg/1 Grab Monthly** <br /> (Gasoline, diesel, motor oil) <br /> Benzene µg11 Grab Monthly** <br /> Toluene µg/l Grab Monthly** <br /> Ethylbenzene µg/1 Grab Monthly** <br /> i ** <br /> Xylenes (total) gg/1 Grab Monthly <br /> f <br /> R <br />