Laserfiche WebLink
' SOIL WHNG AND SAMPLING WORIOPLAN <br /> 32 Tokay Street Lodi California <br />' 1.0 INTRODUCTION <br /> This workplan describes proposed soil boring and sampling at the Pacific Coast <br /> Producers Lodi Cannery located at 32 Tokay Street in Lodi, California (Figure 1) This <br /> workplan was prepared from information provided by Dufour Environmental and Resource <br /> Management, and is subject to modification as newly acquired information may warrant <br /> 1.1 Purpose <br /> Theur f <br /> p pose o the proposed work is to characterize soyl beneath a former diesel fuel <br /> underground storage tank (UST) basin, particularly in the area near a building <br /> 2.0 BACKGROUND <br /> 2 1 Site Location <br /> EThe site is located at the Pacific Coast Producers Lodi Cannery Plant on the north side <br /> of Warehouse #6, in an industrial area of Lodi, California <br /> 2.2 Site History <br /> A 10,000-gallon diesel tank was reportedly removed from the site in 1987 The <br /> approximately 10-foot-wide by 35-foot-long by 15- to 20-foot-deep excavation was <br /> backfilled with a blend of previously excavated soil and clean imported fill However, soil <br /> containing diesel fuel was noted in the excavation pit, prompting a request for <br /> investigation and remediation activities from the San Joaquin County Public Health <br /> Services Department, Environmental Health Division (County) <br /> IIn 1991, five soil borings were drilled and sampled to depths of 20 feet below grade in the <br /> area of the former excavation (Figure 2) The borings were drilled to assess the vertical <br /> and lateral extent of sod containing petroleum hydrocarbons Four of the borings were <br /> drilled 5 feet from the former excavation on each of the four sides The fifth boring was <br /> drilled in the center of the former excavation Soil samples from depths ranging from 4 to <br /> 20 feet contained concentrations of total petroleum hydrocarbons (TPH), as diesel, <br /> ranging from below detection limits (BDL) to 603 parts-per-million (ppm) Concentrations <br /> of benzene, toluene, ethylbenzene, and total xylenes (BTEX) ranged from BDL to <br /> 0 0483 ppm No hydrocarbons were detected in soil samples from the borings north and <br /> south of the excavation <br /> The County requested removal of all soil containing greater than 100 ppm TPH, as diesel, <br /> and 0 005 ppm BTEX In December 1992, the excavation was reopened and Aegis <br /> directed the removal of an estimated 220 cubic yards of soil The limits of diesel-impacted <br /> soil were established using a mobile laboratory on site <br /> 92-0748 WPN <br />