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I � <br /> so <br /> CONDOR EARTH TECHNOLOGIES INC. <br /> July 9, 1998 <br /> 1125 N.Golden State Blvd. 188 Frank West Circle <br /> Suite G Suite I <br /> Turlock, CA 95381 Stockton, CA 95206 <br /> 234-0518 <br /> Mr.Ron Rowe FAX)(29 668-9248-9234 FAX)(2 9) 234-0538 <br /> San Joaquin County <br /> Public Health Services <br /> Environmental Health Department <br /> P.O.Box 388 <br /> Stockton,CA 95201-0388 <br /> RE: Herman &Helen's Marina,Venice Island Ferry,Stockton,CA-Work Plan Addendum <br /> Dear Mr. Rowe: <br /> This letter is an addendum to the Work Plan—Additional Soil and Groundwater Investigation and <br /> Surface Water Sampling,dated May 27, 1998, prepared by Condor Earth Technologies,Inc.(Condor). <br /> The Work Plan was conditionally approved by you in a faxed document dated July 1, 1998. As a <br /> condition to your approval of the Work Plan you requested that the source of drinking water for the <br /> above referenced facility be sampled,that a receptor/water well survey be conducted, and that additional <br /> soil borings be installed. A completed Soil Boring Permit was also requested. This addendum addresses <br /> those requests. <br /> The source for Herman &Helen's drinking water is an inlet pipe located beneath a dock in Little <br /> Connection Slough. The water is treated with a reverse osmosis/membrane style filter system. Figure 1, <br /> attached, shows the approximate location of the inlet pipe and the water treatment system. Concurrent <br /> with the field work described in the above referenced Work Plan, Condor will collect a water sample <br /> from the raw water inlet port located at the water treatment system. The water will be allowed to run for <br /> at least five minutes prior to sampling. The water sample will be analyzed for the gasoline additives/ <br /> oxygenates by EPA Method 8260. The water sample will be collected,handled, analyzed,and reported <br /> as described in the Work Plan. <br /> Condor will complete a survey of the area to identify any users or receptors of ground or surface water <br /> within a 1,000 foot radius of the site. Potential sources of petroleum hydrocarbon contamination will <br /> also be identified, if possible,during the search. The findings of the survey will be included in the report <br /> prepared for the investigation described in the Work Plan. <br /> The installation and sampling of five soil borings were described in the above referenced Work Plan. <br /> Four additional soil borings will be installed, as requested. The borings will be located as shown in <br /> Figure 2, attached. The borings will be installed and sampled as described in the Work Plan. <br /> It should be noted that all of the borings proposed in the Work Plan and this addendum are not located on <br /> Herman&Helen's Marina property. Mr. Jerry Matthews of Herman and Helen's Marina indicated that <br /> ENVIRONMENTAL GEOLOGICAL ENGINEERING GEOTECHNICAL <br /> http://www.condorearth.com <br />