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y 1' <br /> to the lab report) and relatively old. The absence of MTBE is consistent with these <br /> results MTBE was not in widespread use before the mrd-1990's , <br /> Soluble lead was detected at a concentration of 0 512 milligrams per liter(ppm), which is <br /> very close to the reporting limit for this compound Concentrations below 5 ppm are <br /> considered non-hazardous <br /> i <br /> We thank you for using Upgradrent Environmental for this project, and would appr.-.-iate <br /> any opportunity to be of further service Should you have any questions about our r,-:)ort, <br /> please do not hesitate to call me at 209-772-3620 <br /> Sincerely, <br /> I r <br /> Victor B Cherven, PhD <br /> G <br /> Principal Geologist Z <br /> Registered Geologist 43475 N0 3475 <br /> LOF CALW <br /> i <br /> i <br /> i <br />