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r'_RDER NO 5-00-119 2 ATTACHMENT B MONITORING AND REPORTNG PROGRAi'A GENERAL ORDER FOR DIS CHARGE TO 'lSLTRFACE WATERS OF GROUND WATER FROM CLEANUP OF PETROLEUM FUEL POLLU'17-ON EFFLUENT MONITORING Eluent samples shall be collected from the last connection through which wastes can be admattea into the outfall Effluent samples should be representative of the volume and nature of the discharge Tame and specific location of collection of the grZo sanaplc- shall be recorded The following shall constitute the eluent monitoring program Type of Samphng Constituents Units Sample Freguencv Flow mad continuous Monthly - Specific Conductivity umhos/cm Grab Monthly pH pH units Grab Monthly Temuerature OF Crab Monthly Total Dissolved Solids Mg/1 Grab Monthly Total Petroleum Hydrocarbons mg../I Grab Monthly** W (Gasoline, diesel, motor oil) Benzene 4g11 Crab Monthly** Toluene µg/1 Grab Monthly* 0Ethylbenzene gwl Crab Monthiy** Xylene (Total) µIwl Grab Monthly** MTBE lag/, Grab Monthly** Leaci (totaI)* µg/1 Grab Monthly" �-- Bicassay*** % Survival Grab Quarterly Methanol PL=-/l Grab Monthly* Ethanol µg/I Grab Monthly** Ternary Butyl Alcohol (TBA) µg/1 Grab Monthly** Di-Isopropyl Ether(DIPE) µg/l Grab Monthly** Ethyl Tertiary Butyl Ether(ETRE) µg11 Grab Monthly*" Tertiary Arnyl Methyl Ether µ6l1 Grab Monthly** (TAME) M 4+ti i I� �• �lJ r'+ A � * If lead isnot detected m the first 2sampling events, then testing may be discontinued thereafter ** 1) Analyses shall be conducted weekly for four consecutive weeks following mitral discharge from the treatment system 2) If any sample shows detectable TPH, Benzene,Toluene, Etbylbenzene, Xylene,lVME or other oxygerates the Discharger shall immediately resample and reanalyze the effluent for the detected constituent(s), and shall continue sampling the effluent on a weakly basis until the coustrtuent(s) concentrations are below permitted levels 3) If three consecutive monthly sampling events result in non detectable concentration, at appropriate detection limits, then the sampling frequency shall be reduced to Quarterly 4) If a detectable concentration is determined to be present m the wastewater the frequency will revert back to monthly 5) If a constituent is not present in the influent sample, then the testing for that constituent may be discontinued until detected in the mfluent *'* The acute bioassays samples shall be analyzed using EPA)600/4_90/027F, or later amendment with Board staff • approval Temperature ana pH shall be reworded at the time of bioassay sample collection. Test species shall be fathead minnows (Prmenhales prcmelas),with no pH adjustment unless approved by the Executive Officer