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Garrett <br /> From: Genevieve Huffman <genevieve.huffman@dteenergy.com> <br /> Sent: Monday, September 21, 2020 12:38 PM <br /> To: Backus, Garrett [EHD] <gbackus@sigov.org> <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 /> It was the second paragraph. <br /> PH level above 12.5— Hazardous Ash: If this is the case we will rely on the California Hazardous Waste Code, <br /> Chapter 6.5 Hazardous Waste Control <br /> pH that is less than, or equal to, two or greater than or equal to, 12.5, as specified in paragraph (3) <br /> of subdivision (a) of Section 66261.22 of Title 22 of the California Code of Regulations, as that section <br /> read on January 1, 1996, shall not apply to ash generated from a biomass combustion process that is <br /> managed in accordance with applicable regulations administered by the California regional water <br /> quality control board, is used beneficially in a manner that results in lowering the pH below 12.5 but <br /> above 2.0, is not accumulated speculatively, and is available for commercial use. <br /> From: Backus, Garrett [EHD] <gbackus@sigov.org> <br /> Sent: Monday, September 21, 2020 12:36 PM <br /> To: Genevieve Huffman <genevieve.huffman @dteenergy.com> <br /> Subject: [EXTERNAL] RE: DTE Stockton High pH Ash <br /> Can you provide the pH above 12.5 code section that exempts biomass ash? <br /> Garrett Backus, Ld. Sr. REHS, CUPA programs <br /> San Joaquin County Environmental Health Department <br /> 1868 E Hazelton Ave, Stockton, CA 95205 <br /> Desk: (209)468-2986 Cell: (209)616-3030 <br /> Email: gbackus .sjgov.org <br /> https://www.s]gov.org/department/envhealth/ <br /> CC%mM-V <br /> From: Genevieve Huffman <genevieve.huffman @dteenergy.com> <br /> Sent: Monday, September 21, 2020 12:35 PM <br /> To: Backus, Garrett [EHD] <gbackus@sigov.org> <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 /> Sounds good! I will see you then. <br /> Genny Huffman <br /> EHS Manager <br /> 4 <br />