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+ ' KLEINFELDER <br /> 4 DISCUSSION OF ENVIRONMENTAL CONCERNS <br /> With the exception of the Mobil Oil facility, the record review, aerial photography review, <br /> and the site visit did not reveal environmental concerns regarding the misuse or improper <br /> disposal of hazardous chemicals at the subject site. The Mobil Oil Bulk Plant underground <br /> tank removal investigation from 1986 was not approved by the SJCLHD. The case is still <br /> open and not scheduled for closure by SJCLHD until additional required information has <br /> been received, reviewed, and approved. <br /> Mark III Engineering should contact Mobil Oil and encourage submittal of the required <br /> documentation necessary to initiate the closing of the investigation by SJCLHD. Mark III <br /> ` Engineering should consider limiting their liabiiiiies in developing the Mobil Oil Bulk <br /> Plant area until the investigation is officially complete. The underground tank removal and <br /> soil investigation is subject to review and approval and may require further assessment �. <br /> work if contamination is suspected by the SJCLHD. This could result in unexpected <br /> project development delays and substantial investigative and remedial costs if developed <br /> k without prior regular agency approval. <br /> .'The PG & E facility is under investigation by the RWQCB due to reported soil and shallow <br /> ground water contamination by petroleum hydrocarbons and PNAs. E <br /> The former Handyman facility was investigated by the RWQCB following the removal of <br /> two underground storage tanks containing petroleum products. The investigation <br /> reportedly revealed no soil or ground water contamination, and the owner is awaiting <br /> approval by the RWQCB to officially close the investigation. <br /> The use of the carbamate pesticide furadan on the subject site was reported by the San <br /> Joaquin County Agricultural Commissioner. The pesticide furadan is commonly used and <br /> when applied properly should not pose a threat to the environment or public health. <br /> ne SJCLHD indicated that it had continuing investigations for fuel hydrocarbon <br /> contamination from leaking underground tanks at the Mobil Oil, PG & E, and former <br /> Handyman facilities. The extent of contamination and potential impacts on ground water <br /> is still being assessed by these investigations. <br /> 137-38-1690 12 <br />