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SAMPLING PROTOCOL FOR ROUTINE PIPING/DISPENSER REMOVAL/REPLACEMENT <br /> The following represents minimum sampling criterion required for closure compliance. Soil samples collected shall <br /> be representative of native soils beneath the tank's invert(tank's bottom) at a collection depth not to exceed 2 - 4 <br /> feet. If contamination is documented during closure, an Unauthorized Release Notification must be completed <br /> and submitted withing five (5)working days pursuant to California Health & Safety Code, Section 25295. <br /> DISPENSER SAMPLES <br /> AT LEAST ONE SAMPLE BELOW EACH DISPENSER <br /> PIPING AND STOCKPILE <br /> PIPING SOIL SAMPLES 1 Sample every 20 lineal feet <br /> DISPENSER & PIPING STOCKPILE SAMPLES 1 2 Samples every 50 cubic yards <br /> MINIMUM VERIFICATION LABORATORY ANALYSIS <br /> Oxygen <br /> Tank# Tank TPH-G TPH-D BTX&E CL HCTotal Lead <br /> 7420 <br /> 7421 MTBE Ates Metal PCB <br /> Contents 8015 8015 8020 8010 8020 (MTBE, ICAP/AES 8270 <br /> 8260 8260 8260 8240 8260 TBA,DIPE, or AA 8080 <br /> 8260 ETBE, <br /> TAME) <br /> 8260 <br /> Leaded Gas X X X X <br /> Unl Gas X X <br /> X <br /> Diesel X X <br /> Kerosene X X <br /> X <br /> U.K.Fuel X X X X X <br /> Prod.Oil X X X <br /> Chlor. X X X <br /> Solvents <br /> Nonchlor X X X <br /> Solvents <br /> Waste/ X X X X X X X <br /> Used oil <br /> All analysis methods are the designated EPA methods described In EPA SW 846,Third Edition. Those methods not found in SW 846 are specifically noted below. <br /> Refer to the"SWRCB LUFT Field Manual",Appendix D(B),Table 3-5 on page A20 for minimum detection limits for motor vehicle fuel(gasoline and diesel). Refer <br /> to"Tri-Regional Board Staff Recommendations for Initial Evaluation and Investigation of UST's"for the waste and motor oil minimum detention limits. Detection <br /> Limits that remain below the MCL,STLC or Allowable Limit of the contaminant in question will be accepted,however laboratory shall utilize the <br /> most conservative methods. <br /> EH 23 046(revised 1/24/02) <br /> 6,).1A,\opai,6-eh23o46.wpd Page 3 Wo#121718 <br />