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`r` <br /> ^� <br /> lJ' n t <br /> SITE HEALTH AND SAFETY PLAN IJ <br /> �-� GROUND WATER ASSESSMENT <br /> Color Spot Facility <br /> 5400 East Harney Lane <br /> Lodi, California <br /> PURPOSE general <br /> The purpose of this docafet is to provide e ground water <br /> n <br /> publi, enviromental health and safety during the proposed <br /> assessment project to be conduct;d e Location Mapthe Color Spot <br /> �tSehefacility attached Technical <br /> Ems. California (refer to Figure 1 <br /> Work Plan for a description of the project. <br /> r-- <br /> SITE HISTOF,t`I <br /> On February 28, and March L, 1989, a 4,000-,Tallon capacity under- <br /> y under <br /> ground diesel fuel storage tank (UST) was removed from the subject £acilitJoaquin <br /> under the <br /> permits issued by the San <br /> Enviror cental t kiealth DDi.vis+iont (S 1,11Dand } San <br /> Local Health District, and a Staal, Ga:-dner & <br /> supervisl,)n of ttie 93LHD inspector (Mr. Ransil+ Knoll), <br /> ^_ Dunne, Inc. (�`%D) , Environmental Engineer. As the sails surrounding for volatile <br /> the ,ST were <br /> removed, they wn detector <br /> eze .aon:.tored witn a e hooiion were iosegregated in o} contaminated <br /> organic vapor concentrations. Th And uncontaminated portions based on <br /> (greater than 25 parts per million [ppml) <br /> PID monitoring results. The solls eruct deliv zy Z ne were located)ing the south end of tweresobservedd <br /> the fill port, vent line, and pr soils also exhib <br /> to be stained gray and emitted a petrolifercus odor. These m. Upon removal, <br /> volatile organic vapor concentrations ranging from 50 to 200 PPM. <br /> contamination <br /> the UST was inspected and appeared to be structurally sound. <br /> observed was likely caused by overfilling or pipeline leakage. After om Of thn ex UST was <br /> removed, two small trenches were dug, [heesoilset t from the the t trench bottoms excavation <br /> (total depth of about 12 feet) and <br /> - monitored with <br /> a FaD (1,089 ppm on the south end and 26 ppm on thf: north end) and <br /> sampled. <br /> The analytical results u h end l he excavation and the contaminated <br /> collected from the bottom of the so - m ethvibenzene (0.9 and 3.2 <br /> -- soil pile were contaminated with toluene a �dO-84 totalppetrolzu:•i hydrocarbons ([TPR] <br /> ppm), total xylenes (5.1 and 12.0 PPM) <br /> 69G and 1,100 ppm) at concentrations a%ceeding applied action. levels (drinking <br /> water standards [DWS] or Leakiiig Underground Fuel Ta-'c Manua <br /> L [L.U.F.T.]) . <br /> nder <br /> an Joaquin <br /> ~ SGD conducted a soil vapor 89-1857,Au�tp documented <br /> d BbyuSGD SS it Vapor <br /> Local- }}ealth--District_.(S�LHD).__p. ... _ _. _ <br /> Study Color Soot Lodi Inc• , May 1969. Results of the survey-indicate....- a <br /> diesel Fuel contamination within the shallow subsurface (depth of 6 feet below <br /> - - .. .. A <br /> R 4 .. <br /> i <br />