Laserfiche WebLink
a <br /> San Joaquin Local Health District <br /> SPEt?m�e1" 28, ]98S - Aage 4 of 4 Re: Site assessment report <br /> —— — — — 260 S. Main Street, Manteca, CA <br /> 6. A. Conclusions: <br /> It is my considered opinion that because of the close proximity in <br /> depth of the sidewall samples taken during re-excavation to the <br /> original bottom sample taken during routine tank removal and that <br /> i <br /> 3 no evidence of contamination was found at a depth of 14 feet directly <br /> under the original bottom sample, that <br /> P the 77, and 110: .mg/kg Total <br /> Extractable Petroleum Hydrocarbons was :the..resuit:of a. smal] amount <br /> Of sluff or a small isolated pocket of hydrocarbon <br /> Thisprobably,: E <br /> € was a result :of::a son <br /> all.`over .fil] :over time past.: All samples from"the <br /> re-excavation showed "None Detected" levels of all constituants of <br /> z <br /> Petroleum hydrocarbons, therefore, any:small .amount of contamination <br /> remaining.in the backfill would pose no threat .to any part of <br /> ` 1 environment. With these thoughts in mind, I do not believe, nor do <br /> I recommend any further soil remediation, aeration, or groundwater <br /> monitoring steps. # <br /> Respectfully submitted, <br /> JIM T E OIL, INC. } <br /> Richard Thorpe <br /> President . <br /> I <br /> cc:. Calif. Regional Water Quality Board <br /> i Claudio Dell'Eva i <br /> y <br /> A <br /> a <br /> 4 <br />