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Backus, Garrett [EHD] <br /> From: Jim Kapin <JKapin@ACTEnviro.com> <br /> Sent: Friday, October 16, 2020 1:48 PM <br /> To: Backus, Garrett [EHD] <br /> Cc: Sarathi Kandekumbura;Alex Reynon <br /> Subject: Tank Closure Certification for Thatcher Chemicals <br /> Attachments: Thatcher_Tank_Closure_201013.pdf <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 /> Mr. Backus—as discussed previously,Thatcher Chemicals in Stockton, California has completed the cleaning and <br /> decontamination of 4 poly tanks at their facility. After cleaning, these tanks were cut into large pieces and stored on <br /> pallets pending your acceptance of the closure certification. To evaluate potential surface contamination on the pieces, <br /> we measured surface pH at 6 locations on each of the 15 pallets (75 total measurements), all results were between 5—7 <br /> Based on this, I have completed and signed the tank closure certification form for all 4 tanks (included in the attached <br /> memo). Once we receive your acceptance of the closure certification,Thatcher will either recycle or dispose of this <br /> material <br /> Please let me know if this is acceptable to you, or I would be happy to provide additional information. <br /> Jim <br /> James Kapin, MPH, CIH, CSP I Director of EM Services <br /> ACTenviro <br /> Tel. (760)489-5600 <br /> Cell (619) 990-5955 <br /> Web I Linkedln I Facebook <br /> 6 A SUMii,Abl§cornpmy <br /> VA * ar <br /> 2D <br /> ACT% TEW <br /> e .vino in more ways than one. <br /> The information transmitted herewith is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material.Any <br /> review,retransmission,dissemination or other use of,or taking of any action in reliance upon,this information by persons or entities other than the intended <br /> recipients is prohibited.If you received this in error,please contact the sender and delete the material from any computer. <br /> 1 <br />