Laserfiche WebLink
%101� L44 <br /> Martin Thorpe , <br /> 16 October 1987 4 WEISSRSSOCL3TES <br /> grouna water . and to further define the distribution of Hydrocarbons in <br /> unsaturated soil. <br /> The site is located approximately 350 ft west of City of Lodi Municipal <br /> Well No. 1, a supply well for the Lodi drinking water system (Figure 1) . <br /> According to i.sformation provided by Richard C. Prima of the Lodi Building <br /> Department, this well was originally drilled to a depth of 410 ft below grade, <br /> has a current depth of 292 ft, and is drawing most of its water from a shallow <br /> aquifer. Fran Forkas of the Lodi, Department of Public Works (LDpW): has <br /> indicated that Well No. 1 is pumped for approximately 2 hours every other. day, <br /> M has a pumping capacity of approximately 1,800 gallons per minute (gpm) ; and, <br /> due to sanding problems, is scheduled for replacement by a new well drilled <br /> farther= east. Mr. Forkas also indicated that water samples collected from the <br /> municipal well in January 1987 and on 25 August 1987 contained no detectable <br /> VOCs. The samples were analyzed at AnLab of Sacramento, California for BTX by <br /> EPA Method 602 with .a detection limit of 1 part per billion (ppb) . <br /> SOIL BORING, SAMPLING AND ANALYSIS <br /> The <br /> borings for monitoringwells MW-1 MW-2 and MW-3 were drilled on 22 <br /> and 23 July 1987 with a hollow-stem auger drilling, rig operated by Exploration <br /> Geosenrices of San Jose, California (EGS) .. The drilling was supervised by WA <br /> geologist .Joseph Theisen. <br /> Boring locations are shorn on Figure 2. They were 'determined by WA and <br /> satisfy SJI.HD. requirements. MW-1 was drilled approxiinately '5 ft northeast of <br /> the tank excavation. to determine soil and ground water quality adjacent to and <br /> beneath the excavation. MW-2 was drilled approximately 80 ft southwest of the <br /> tank ehcavation iin a dirt parking area owned by Mrs. 'Lehr. It was located in <br /> the anticipated down-hydraulic gradient direction from the excavation. Buried <br /> t <br /> utilities and overhead electrical lines prevented drilling this boring any <br /> closer to the rank excavation (Figure 2) . MW-3 was located 45 ft eastof the <br /> tank excavation, directly between the excavation and the City of Lodi <br /> municipal well. MI-1 and MW-3 are situated in the parking lot 'of the <br /> neighboring business at 216 E. Lodi Avenue. Nick Von Flue, the owner of <br />