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Joann Marroquin <br />From: Alan Leung <Alan.Leung@erm.com> <br />Sent: Thursday, October 01, 2020 9:55 AM <br />To: Joann Marroquin <br />Cc: Bill Hannell <br />Subject: RE: Final Report and Invoice for Stockton SMF3 (T203379) <br />Hi Joann, <br />Thanks for providing the report and the electronic files. <br />Yes, we'd like further extraction (WET and/or TCLP) testing for the following metals on standard 5 -Day TAT. <br />Cadmium (STLC), <br />Chromium (STLC & TCLP), <br />Copper (STLC), and <br />Nickel (STLC). <br />Please let me know if any questions. <br />Thank you, <br />Alan Leung, PE <br />Principal Engineering Consultant <br />ERM <br />114 Sansome Street, Ste. 750 1 San Francisco, CA 194104 <br />M +1 650-684-8880 <br />E alan.leung(cerm.com I W www.erm.com <br />�49 <br />ERM ThebUsMeSSotsusramaway <br />From: Joann Marroquin <joann@sunstarlabs.com> <br />Sent: Tuesday, September 29, 2020 4:20 PM <br />To: Alan Leung <Alan.Leung@erm.com> <br />Cc: Cathy Hartman <accounting@sunstarlabs.com>; ERM Pacific West A/P <ERMWestAccountsPayable@erm.com> <br />Subject: Final Report and Invoice for Stockton SMF3 (T203379) <br />Alan, <br />Please find attached the final report and invoice for the following: <br />Project: Stockton SMF3 <br />Project Number: 0567141 <br />Several elements exceed the the STLC and/or TCLP thresholds. Please let me know if you would like to add these <br />analysis and if so the TAT you need. Also, I wasn't sure if you needed the ERMEquis EDD, so I attached it as well as <br />our standard excel file. <br />Thank you for choosing Sunstar! We appreciate your business! <br />