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(AMMRF *ATERWORK CORP. <br /> INDUSTRIES 11114 11N 11111.,011111 <br /> February 28, 19 91 sx r <br /> N <br /> MAR 4 191 v <br /> Ms. Eleanor Ratliff ENVIRONMENTAL TA H_EAL'_'}= <br /> San Joaquin County PERM ff/S;-MCLS <br /> Public Health Services <br /> Environmental Health Division <br /> -.P.O. Box 2009 <br /> Stockton, California 95202 <br /> _ ---Re-: Skobrak Property, 888 East Lindsay Street_, Stockton., _CA, <br /> Dear Eleanor: <br /> Thank. you for discussing the subject site with me today on the <br /> telephone. This letter .i.s to .confirm what was discussed. You <br /> indicated that to. allow transporting of the stockpiled soil to <br /> another 'site, composite samples must be collected from the soil <br /> -_ pi-le(s) and-analyzed. for total lead. The objective of the analy- <br /> ses_would be--to determine that -lead concentrations -.do not exceed <br /> -..Total Threshold Limit Concentrations (TTLC) or Soluble Threshold <br /> Limit Concentrations (STLC) for hazardous waste pursuant to Title <br /> 22 of the California Code of Regulations. If total lead concen- <br /> `trations exceed. 5 ppm, the samples will be analyzed for soluble <br /> _lead using the Waste Extraction Test methodology. WaterWork <br /> personnel will collect composite samples as soon as possible. <br /> Samples will be submitted to Sequoia =Analytical (DHS Cert. . No. , <br /> -=:1210) for--analysis.. -After receipt of the analysis results, .prior — <br /> approval to transport.-the soil must be received from SJCPHS. <br /> .You also .stated that- no further sampling of the excavation would <br /> -be required. Because the property owner is anxious to complete <br /> .. -.onsite--activities, -you indicated that the excavation could -be-- <br /> backfilled <br /> ould be-=backfilled with clean (imported) material immediately. <br /> Thank you again for your consideration of this matter. If you <br /> haveany questions, please do not hesitate to contact me at our <br /> Escalon office (209) 838-3507 . <br /> Respectfully, f <br /> WaterWork <br /> I <br /> Nora H. Kataoka <br /> CA Registered Civil Engineer #38322 <br /> 1710 MAIN STREET • ESCALON,.CA 95320 • (209) 838-3507 <br /> 2350-A WALSH AVENUE . SANTA CLARA,CA 95051 e (408)496-1249 <br />