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- <br /> ne <br /> WALLACE - KUHL June 12, 2000 - _ " <br /> &ASSOCIATES INC. <br /> Mr. Jeffrey Wong <br /> San Joaquin County Public Health Services <br /> Environmental Health Division =}r <br /> 304 East Weber Avenue,Third Floor nc <br /> _ <br /> Stockton, California 95202 <br /> r;, <br /> _ w <br /> y Site Investigation Workplan <br /> CRYSTAL CREAMERY STOCKTON <br /> 404 West Fremont Street <br /> Stockton, California 95086 <br /> WKA No. 162 8.10 <br /> Introduction <br /> _ ,As required by the San Joaquin Public Health Services Department,Environmental <br /> T Health Division,in their letter of May 17,2000, we have prepared this Workplan for <br /> performing.a limited groundwater investigation at the above site. The purpose of our <br /> u proposed work will be to evaluate the extent ofpetroleum hydrocarbon . <br /> ' contamination in an area located northeast of the former underground storage tank = s <br /> (UST). To this end, our scope of work will include the following: <br /> - T • Outlining the proposed boring locations with white paint and contacting _. <br /> # Underground Service Alert(USA) a minimum of 48 hours prior to = i <br /> t Geotechnical Engineering H drilling. <br /> Engineering Geology • Obtaining the appropriate permits from SJCPHSD and the City of ; <br /> Stockton. <br /> — d <br /> Environmental Consulting <br /> 0- Constructing four 20 to 25-foot deep soil borings using push- <br /> Remediation services <br /> ---ems technology drilling equipment at the locations shown on Plate No. 2. <br /> --_ - .. - <br /> Construction Inspection <br /> . •° One of these borings will be converted to monitoring well, <br /> developed and sampled in accordance with the attached field <br /> Materials Testing _ „ <br /> T __:_ procedures. A diagram of hypothetical well construction detail is = _ <br /> `s included as Plate No. 3. The well will be constructed with <br /> 1 _ - approximately 15 feet of screen to allow for a certain amount of <br /> groundwater fluctuation. The remaining borings will be sealed to <br /> i <br /> 3050 Industrial Blvd. the surface with neat cementgrout using a tremmie pipe to displace <br /> =i <br /> West Sacramento = any voids. <br /> CA 95691 Submitting one water and one soil sample from each of the three soil <br /> _ 916.372.1434 borings and the new monitoring well to a California_certified <br /> ' laboratory for analysis of Total Petroleum Hydrocarbons (TPH) as <br /> Fax 916.372.2565 <br /> Recycled pap, , <br />