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1-aw Offices of _ • <br /> FREEMAN & BRO*N <br /> Professional Corporation <br /> Maxwell M. freeman ._.. - <br /> James Belford Brown <br /> Gerald A Sperry - - November. 111 1989 =- <br /> Ronald J. D'Aium - <br /> Erik R. Anderson <br /> A. Peter Rausch, Jr. <br /> James L. Tjosvold <br /> Senior Waste Management Engineer <br /> ' Department of Health Services <br /> Toxic Substances Control Program <br /> Site Mitigation Unit <br /> 10151 Croyden Way <br /> Sacramento, CA 95827 <br /> Re: Beck Development Co. Tracy California <br /> Dear Mr. Tjosvold: <br /> on behalf of myself, Stephen Boll and Beck Development Co. , <br /> I want to thank you, Mr. Sneh and Dr. Luthra for meeting with us <br /> to discuss the status of the extensive environmental <br /> investigation of our Tracy site; identifying DHS ' s remaining <br /> issues of concern; specifying the objectives of the DHS; and <br /> quantifying the analytical objective of the proposed Health Risk <br /> Assessment. <br /> It was our understanding that Beck Development Co . through <br /> its environmental consultant, Stephen Boll of Kleinfelder, Inc. , <br /> would prepare and submit to you for your approval, a work plan <br /> for the preparation of a Health Risk Assessment of the existing <br /> site and the proposed development of the site. The Health Risk <br /> Assessment would evaluate: <br /> 1 . Arsenic, total chrome and nickel; <br /> 2 . DDE, DDT and Dieldrin; and <br /> 3 . PNA and . H at 5 to 7 feet within the tank storage area <br /> during and after development. <br /> 4 . A base line study on current conditions using <br /> residential exposure. <br /> rr <br /> No significant cancer risk" wil� be defined in the range of <br /> 1 x 10� (one in a million) to 1 x 10 (one in 100 , 000 ) . In <br /> addition, our report will include data from two ( 2 ) full rounds <br /> of tests from each of the wells . <br /> Reno Nevada Office <br /> 1818 Grand Canal Blvd. 147 Ea.i LiherIN Street <br /> ltockton, CA 95207 R: tirseda 89301 <br /> 411! 474 1818 -ir' 122 OhOh <br /> loiert4ner: 209 4.-4 1245 <br />