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MEMORANDUM <br /> Y <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD • CENTRAL VALLEY REGION <br /> .3443 Routier Road, Suite A Phone: (916) 255-3000 <br /> Sacramento, CA 95827-3098 CALNET: 8-494-3000 <br /> TO: Mr. James Tjosvold FROM: Wendy Cohen <br /> Chief of Site Mitigation Senior Engineer <br /> Department of Toxic Substances Control <br /> Region 1 <br /> DATE: 13 April 1994 SIGNATURE: 6/1jt✓ <br /> SUBJECT., PROPOSED CLF-.-NUP LEVFT C QnTTTFTFPN Pd TpTC TDQ 1 71vp -rA TTII � <br /> 7 --1 i ti�.� ./R l.al AV� <br /> COMPANY, OLD TRACY YARD, SAN JOAQUIN COUNTY <br /> The Board is the lead regulatory agency for the subject site. Southern Pacific Transportation <br /> Company (SPTCo) has proposed a soil cleanup level of 500 mg/kg for lead. This level may be <br /> sufficient for protecting the water quality but future residential and commercial development is <br /> intend for the site. SPTCo holds that for financial efficiency, cleanup levels should be established <br /> befom mediation activities begin. Therefore, we would like to know your position on SPTCo's <br /> proposal before they begin excavating in May 1994. I have included a memorandum which <br /> summarizes the work already completed at the site. <br /> I appreciate your prompt response to this issue. If you have any questions, please feel free to call <br /> Joel Weiss at 255-3077. <br /> JMW--j�wa <br /> Enclosure <br />