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Levine.Fricke•Recon <br /> ENGINEERS,HYDROGEOL001STS 8 APPLIED SCIENTISTS <br /> prevent any contact with utilities during installation. The work areas for these installations will be <br /> cordoned-off during drilling and trenching activities to prohibit access by unauthorized personnel. <br /> Drilling field equipment will consist of a drilling rig and support vehicles very similar to those <br /> used to install the nearby monitoring wells. The trenching work will be performed using a rubber- <br /> tired backhoe and a small dump truck. The top of the piezometer (monitoring well) will be below <br /> the existing parking lot surface and completed with a small, round, bolt-down cover similar to the <br /> other wells that LFR previously installed on the property. The extraction well will be completed <br /> within a four- by four-foot square equipment vault similar to a PG&E utility vault. The vault will <br /> have two metal hinged lids that bolt down and are covered with a nonslip surface pattern. The <br /> vault will be installed less than one inch above the surrounding pavement, with a sloping concrete <br /> lip to minimize any tripping hazard. <br /> At the end of each work shift, any waste materials or debris generated during the field activities <br /> will be removed and the work area will be cleaned. Upon completion of this field work, the <br /> asphalt surface surrounding the piezometer, the extraction well vault, and the trench will be <br /> restored to its original condition. <br /> As you know, before LFR can perform the well installation work, we must obtain a well permit <br /> from the San Joaquin County Public Health Services, Environmental Health Division (SIC <br /> PHS/EHD). To issue the permit, the SJC PHS/EHD must have written permission to conduct this <br /> work from Lincoln Unified School District. Therefore, please sign the acknowledgment in the <br /> space indicated below,and return the signed document to me via facsimile and in the enclosed, <br /> self-addressed, postage-paid envelope. <br /> On behalf of the SDCDs, we again sincerely appreciate the granting of our request for access to <br /> the Lincoln Elementary School parking lot to perform our environmental work. If you have any <br /> questions or comments, please call me at (510) 596-9559, or Chris Alger at (510) 596-9683. <br /> Sincerely, <br /> Donald T. Bradshaw, R.G. <br /> Principal Hydrogeologist <br /> Site Project Manager <br /> Enclosures <br /> cc: Robert C. Thompson, Esq., LeBoeuf, Lamb, Greene & MacRae <br /> John J. Gregory, Esq., LeBoeuf, Lamb, Greene & MacRae <br /> A.J. Birkbeck, Esq., Fulcrum Environmental Law <br /> Wilbur H. Smith II, Esq., Pacific Oversight & Management Corporation <br /> Kit Custis, Regional Water Quality Control Board, Central Valley Region <br /> Mike Infurna, San Joaquin County Public Health Services, Environmental Health Division <br /> LIr-Access-LUSD-Mar98-04I11:SRL 2 <br />