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117 Lone Palm Avenue,-_Suite B <br /> Modesto, CA 95351 <br /> www.atc-enviro.com <br /> : e2. . <br /> _ 209 579.2221. <br /> A s" s.o.c n r E"s r ._ Fax 209.579.2225 <br /> 7 EC E. YE lu <br /> - .. .- <br /> January"27,2004 JAN 2 8 2004 <br /> z <br /> 54.17861:0001 _ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> Mr.Nuel Hendersorif. ;. A <br /> San-:Joa Joaquin County'..:..- <br /> q ' . . _ <br /> Environmental-Health DepartmentE - <br /> 304 E:-Weber Avenue, 3rd-_Floor Y <br /> Stockton,CA '95202:.-- <br /> First Quarter'20_04 Groundwater,Monitoring. bort'for the Fayette Mainufacturing <br /> Site;' 675 West.Eleventh-Street, Tracy; Cal.ifornia..SITE.CODE:' 2233 <br /> Dear Mr. Henderson: <br /> ' ::.. a :. .. .• . <br /> As required by. the .S n Joaquin County Environmental :Health •Department (SJEHD); ATC' <br /> #, Associates Inc...has$prepared this letter:report suminar;zing the First•Quarter 2004 groundvWa#er <br /> monitoring and site activities per€orined at the above.referenced site (Figure l�: Sampling was <br /> performed to monitor tlie-•distr bution.-of petroleum hydrocarbons in 'groundwater. Monitoring <br /> was performed:to determine-Ah&.1 groundwaterflow direction.and' the:hydraulic' gradient in`the <br /> uppermost-aquifer: ,- <br /> SITE;LOCA 'ION:Y.:.-: <br /> The project'-site, is located_-at...76'�5",West Eleventh Street, between 1V1acArthur. Drive' and <br /> Chrisman Road, in Tracy;California:`The site=location is shown on'Figure 1. The vicinity of the ' <br /> site is-primarily a convnercial and,industrial area. The property,Ys-:avtmed,by Dr. A.R.Glover. <br /> } , <br /> The site is located on.generally level terrain'which slopes gently toward,the Tom Paine Slough;a. <br /> northwest trending'extension of the delta located approximately 2:5 rniles'north.of-thesite. :. <br /> BACKGROUND. <br /> On October 15, 198.6,-AWo 500=gallon;gasoline underground storage tanks (USTs):were removed <br /> from the:'site. During iemoval;of the U"STs, petroleum product-was noted in-the"southern UST <br /> excavation(Figure 2). Soil-samples were collected from two feet;below thehot.tom of the.USTs, <br /> and petroleum--constitu6n&s nd lead,were detected in the soil sainples:.. <br /> ' On July`18, 1995„Smith Technology supervised the installation of three grouradvyater monitoring - <br /> wells;MW4,,MW-2;:and MW 3. i ure:2).,During Installation�of the inonitdnn wells, soil <br /> g $ g. <br /> r: <br /> s:\Environmental\17861\reportsXl gmr2004.doc 1 ` <br /> ENVIRONMENTAL, GEOTECHNICAL'.AND MATERIALS PROFESSIONALS <br />