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t � � <br /> WATERWORK <br /> GEOCHEMICAL•GEOTECHNICAL ENVIRONMENTAL B R <br /> 6 <br /> NOV 271989 <br /> November 21, 1989 ENVIRCAMEINITAL HEALTH <br /> PERIMIT/SERO';CES <br /> Ms. Eleanor Ratliff <br /> San Joaquin County <br /> Public Health Services <br /> Environmental Health Division <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> Re: Soil boring investigations, 1807 Douglas Avenue, <br /> Stockton, CA <br /> Dear Ms. Ratliff: <br /> This letter transmits the necessary information to your <br /> department in order to conduct a soil boring investigation at the <br /> above referenced site (Figure 1 ) . This investigation is being <br /> performed to facilitate the transfer of property title. <br /> The investigation will entail drilling and sampling of four angle <br /> soil borings and four vertical borings. The four angle borings <br /> will be drilled a total depth of 18 feet at a 30° angle to <br /> vertical ( 15 foot depth below grade) to obtain samples directly <br /> beneath the center of the underground tanks. The vertical soil <br /> borings will be drilled to a depth of five feet along existing <br /> and former product line locations. The site plan shows the <br /> location of the proposed borings (Figure 2 ) . A soil sample <br /> collected from the bottom of each boring will be analyzed by a <br /> State certified laboratory for benzene, toluene, ethylbenzene, <br /> xylenes (BTEX) and total petroleum hydrocarbons (TPH) . A report <br /> summarizing the results of the investigation will be prepared in <br /> accordance with regulatory agency guidelines. We will restore <br /> the site by filling the boring to surface with a one to one <br /> sand/cement slurry. <br /> The following data is attached: <br /> 1 . Permit application, <br /> 2. $35.00 Permit fee, <br /> 3. Detailed site map, <br /> 4 . "Authorization to release analytical data" <br /> form, <br /> 1710 MAIN STREET • ESCALON, CA 95320 . o (209)838-3507 <br /> FRESNO,CA(209) 222-3495 * RENO, NV(702) 788-6830 <br />