Laserfiche WebLink
f Oxyt Analnis2 3 30 August 1997 <br /> Quarterly water samples for oxygenate compounds are to be taken from all monitoring wells <br /> at sites with 10 or fewer wells (supply wells and surface water may be included in the <br /> monitoring program , as appropriate,by the Regional Board or Local Implementing Agency)_ <br /> At sites with more than ten monitoring wells,requests to change the sampling procedure must <br /> be approved by.the Regional Board or Local Implementing Agency. Soil samples should be <br /> analyzed beneath the primary leak source(s) (tank,pipeline; or dispenser) at regular depth <br /> intervals to the groundwater interface. If only MTBE is found in the initial sampling/analysis, <br /> as confirmed by 8260, the Responsible Party may continue analysis by EPA Method 8020 for <br /> the oxygenate-Prior to requesting site closure,a "confirming round for all oxygenate <br /> compounds must be completed_ <br /> Laboratories must include all listed oxygenated standards (TBA and Ethers)in their calibration <br /> standards and follow the QA/QC protocol detailed in ERA Methods 8000 and 8020, or 8240-B <br /> or 8260, and the Code of Federal Regulations (CFR Title 40;;parts 136.4 and 136.5). <br /> In addition to the compounds discussed above,we have found that both Tertiary amyl ethyl <br /> ether (TREE) and Isopropyl alcohol (IPA),WSPA, 1997 data, also may be added to gasoline; <br /> and PRISTO (ethylene glycol monomethyl ether) is added to aviation fuel and,reportedly, <br /> some diesel fuels to prevent clogging of fuel lines by microorganisms. Prist is registered as a <br /> pesticide with anti-microbial properties: C_S#000109864.. These compounds may be added <br /> to the analysis list as more information becomes available. . <br /> If you have any estions,please call john Noonan in Fresno at (209) 445-5550, <br /> Karen Clem in Redding at(916)714-482, or me in Sacramento at (916) <br /> G/ground <br /> OGGS <br /> Unk <br /> Pr <br />