Laserfiche WebLink
ENVIRONMENTAL HEALTH DEPARTMENT <br /> Pp U.I�y SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> Donna K.Heran,R.E.H.S. Carl Borgman,R.E.H.S. <br /> 304 East Weber Avenue, Third Floor <br /> y. Director Mike Huggins,R.E.H.S.,R.D.I. <br /> Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.E.H.S. <br /> • ._ �P• Program Manager Telephone: (209) 468-3420 Margaret Lagorio,R.E.H.S. <br /> q� Fo.R� P <br /> Laurie A.Cotulla,R.E.H.S. Fax: (209) 464-0138 Robert McClellon,R.E.H.S. <br /> Program Manager Mark Barcellos,R.E.H.S. <br /> KHALDOON OTHMAN 5 E P 3 2002 <br /> 701 E CHARTER WAY <br /> STOCKTON CA 95206 <br /> RE: K & S Gas & Grocery Site Code: RO 0307 <br /> 701 E Charter Way <br /> Stockton, CA <br /> San Joaquin County Environmental Health Department (EHD) has reviewed Additional <br /> Monitoring Well Installation Work Plan (work plan) dated 16 July 2002, and Quarterly <br /> Report — Second Quarter, dated 20 August 2002, both prepared by Advanced <br /> GeoEnvironmental, Inc. (AGE) on your behalf. EHD comments as follows: <br /> The work plan proposes installation of 4 multi-level and 4 single completion ground <br /> water monitoring wells to assess and monitor impacted ground water on and near the <br /> site. The multi-level wells will be completed across four depth intervals shown by CPT <br /> data to be occupied by permeable strata which yielded grab ground water samples <br /> impacted by petroleum hydrocarbons and/or methyl tert butyl ether (MTBE). The well <br /> locations are generally near the previously advanced CPT borings or as projected from <br /> the CPT investigation data. The intervals screened are projected to be 28 to 48 feet <br /> below surface grade (bsg), 80 to 85 feet bsg, 109 to 119 feet bsg and 140 to 150 feet <br /> bsg. The four single completion wells will be screened across first ground water, <br /> generally 28 to 48 feet bsg. The wells and screened intervals are located to attempt to <br /> delineate the vertical and lateral extenkof impacted ground water. <br /> As per a telephone conversation with Dr. Calvin Lee of AGE on 19 August 2002, the <br /> proposed northwesterly well, MW4, will be completed as a multi-level well, rather than a <br /> single completion well, to monitor the northern extent of impacted ground water in each <br /> informal hydrological unit. Therefore, the modified work plan will include five multi-level <br /> wells and three single completion wells. <br /> EHD approves the work plan as modified as necessary and adequate to continue the <br /> site investigation and assess the lateral and vertical extent of impacted ground water. <br /> The soil sampling and analysis plan and the quarterly ground water monitoring plan are <br /> approved as submitted. <br /> Well permit applications and $89.00 fees for each parcel involved in the work plan <br /> should be submitted to EHD as soon as possible. Also, copies of encroachment permits <br /> and easement agreements for wells to be installed in the public right-of-way or on <br /> adjacent parcels must be submitted to EHD before drilling permits can be issued. Please <br />