Document 3JRjxzDMvXnyGKjebbyQEG6QJ

AR226-2599 ^ Andrew S Hartten 02/13/2003 02:32 PM To: ce: Subject: "Steve Williams" <steve.williams@epa.state.oh.us> @ DUPONT_MHUB "Michael Preston" <michael.preston@epa.state.oh.us>, "Sarah Wallace" <sarah.wallace@epa.state.oh.us>, M. Ann Bradley/STB/DUPQDUP (bcc: Andrew S Hartten/AE/DuPont) Re: Little Hocking Soil Samples D Steve, I have talked with our chemists several times this week and now feel! can accurately answer your question. The main problem STL-Denver has been experiencing is related to soils APFO extraction performance, Its my understanding they have spent a great deal of lime dealing with this issue and now have only reached a point where the extraction quality control criteria meet our expectations (whichare very high). Anyway, early next week STL should be submitting the quality control results from the method development work (I.e., the Williamstown boat ramp 3 strata samples) to us. Provided this Information meets our needs (and it should), they will then be able to begin the LHWA soil sample prep/extractions and analytical runs. If all goes well, we may have draft results the week of FBb.,24. The draft results will then fie Quality reviewed by our C-8 analytical team. If approved, the lab will issue the results as final, possibly the week of March 3. We have our LHWA investigation report mostly complete, with the exception of the soil data. I would expect that we can turn-around the final report approximately 10 days after the final analytical results are received, I'm hoping around March 14. I will give you another update in person next week at the GIST meeting. Andrew "Steve Williams" <steve.williams@epa.state.oh.us> on 02/10/2003 11:17:18 AM "Steve Williams" <steve.williams@epa.state.Bh.us> on 02/10/2003 11:17:19 AM To: cc: Subject: Andrew S Hartten/AE/DuPont@>DuPorrt "Michael Preston" <i7iichael.prBston@epa.stBte.oh.u6>, "Sarah Wallace" <sarah.wallace@epa.state. oh.Ut> Little Hocking Soil Samples Andrew It Thanks for submitting the C-8 Summary Report. is helpful to have the data pullftd together in one document. The Report indicates the method development for analyzing C-8 in soils is stxU in progress. Can you summarize for me the status and estimate when the method will be finalized. Please respond by Thursday this week. Thanks, Steve EID816130 EID816130 - C.htm EID816131 EID816131