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i <br /> WALLACE • KUHL <br /> &ASSOCIATES INC. <br /> February 25, 1994 <br /> Mrs. Barbara Drake <br /> 8315 Arroyo Way <br /> Stockton, California 95209 <br /> PROPOSAL FOR HYDROPUNCH GROUND WATER INVESTIGATION <br /> ' 26485 THORNTON ROAD <br /> Thornton, California <br /> Dear Mrs. Drake, <br /> We are pleased to provide you with this cost estimate for a hydropunch <br /> investigation at the above-referenced property. We propose the following <br /> scope of work: <br /> prepare a workplan for review by the San Joaquin County Public <br /> Health Services (SJCPHS) <br /> A �. obtain necessary permits and coordinate well inspection with the <br /> SJCPHS <br /> drill five to seven soil borings to an anticipated depth of 10 feet <br /> below site grade with a truck-mounted drill rig, equipped with <br /> hollow stem augers. Soil samples will be obtained at approximate <br /> �+` lin•,i�, nnu n,J l'„ntinl,in� <br /> five-foot intervals or changes.in lithology with a modified <br /> California sampler containing clean brass tubes. All sample tubes <br /> will be sealed with Teflon'O sheets, plastic end caps, and duct tape <br /> t ' �. [ ',•n.,rncri„nlnya,ri„ir I <br /> and preserved on ice. Soils encountered during drilling will be i <br /> .0 Mol,lwl, r,"'"' logged by an experienced field engineer/geologist <br /> E� <br /> obtain ground water samples from beneath the site using <br /> ;i'ih In,liruri:�1 141ri1. Hydropunch technology.. At appropriate depths, a Hydropunch I <br /> • <br /> !�A. 11 <br /> s sampler containing a four-foot disposable <br /> e ms` C'A 95691 <br /> hI{,.i7 .276i <br />