Laserfiche WebLink
• MPDS-UN5o98-o5 <br /> January lo, 1995 <br /> Page 2 <br /> were then sealed with Teflon-lined screw caps, labeled, and stored in <br /> a cooler, on ice, until delivery to a state-certified laboratory. MPDS <br /> Services, Inc . transported the purged ground water to the Unocal <br /> Refinery located in Rodeo, California, for treatment and discharge to <br /> San Pablo Bay under NPDES permit . <br /> ANALYTICAL RESULTS <br /> The ground water samples collected from the Unocal wells were analyzed <br /> at Sequoia Analytical Laboratory and were accompanied by properly <br /> executed Chain of Custody documentation. The analytical results of the <br /> ground water samples collected from the Unocal wells to date are summa- <br /> rized in Table 3 . The concentrations of Total Petroleum Hydrocarbons <br /> (TPH) as gasoline and benzene detected in the ground water samples <br /> collected from the Unocal wells%this quarter are shown on the attached <br /> Figure 2 . Copies of the laboratory analytical results and the Chain of <br /> Custody documentation for the Unocal wells are attached to this report . <br /> is <br /> LIMITATIONS <br /> Environmental changes, either naturally-occurring or artificially- <br /> induced, may cause changes in ground water levels and flow paths, <br /> thereby changing the extent and concentration of any contaminants . <br /> DISTRIBUTION <br /> A copy of this report should be sent to the San Joaquin County Public <br /> Health Services, to the Regional Water Quality Control Board, Central <br /> Valley Region, and to Mr. Frank Muramoto of Environmental Audit, Inc . <br />• <br />