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Backus, Garrett [EHD] <br /> From: Genevieve Huffman <genevieve.huffman @dteenergy.com> <br /> Sent: Monday, September 21, 2020 2:11 PM <br /> To: Backus, Garrett [EHD] <br /> Subject: RE: DTE Stockton High pH Ash <br /> CAUTION:This email is originated from outside of the organization. Do not click links or open attachments unless you recognize the <br /> sender and know the content is safe. <br /> Garrett, <br /> 98%+ is biomass although we do use natural gas for stabilization and start up. <br /> Genny Huffman <br /> EHS Manager <br /> DTE Stockton,LLC <br /> 2526 W.Washington Street <br /> Stockton,CA 95203 <br /> Desk: (209)320-3713 <br /> Cell: (530)300-1422 <br /> Fax: (530)661-3124 <br /> E-mail:genevieve.huffman@dteenergy.com <br /> From: Backus, Garrett [EHD] <gbackus@sjgov.org> <br /> Sent: Monday, September 21, 2020 1:58 PM <br /> To: Genevieve Huffman <genevieve.huff man @dteenergy.com> <br /> Subject: [EXTERNAL] FW: DTE Stockton High pH Ash <br /> Hi Genny, <br /> Looks like the section is HSC 25143.5 and it's a conditional exemption from hazardous waste control law. DTE needs to <br /> demonstrate that 75% of the total energy input is from biomass sources and the ash is used beneficially in a manner that <br /> lowers the pH below 12.5. <br /> You provided a statement a while back: "Neither fly ash nor bottom ash is waste they are a product sold to a place called <br /> DMI close to Bakersfield. DMI uses it to mix with low pH liquid to absorb moisture and landfill daily cover. DMI is a Class <br /> III Landfill." <br /> I need a letter from DMI explaining how the pH will be dropped below 12.5 and that it will be used for landfill daily <br /> cover. <br /> HSC 25143.5 <br /> i <br />