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Sammons, Lynsey [EHD] <br /> From: Andrew Guglielmo <aguglielmo@keramida.com> <br /> Sent: Tuesday, April 21, 2026 2:44 PM <br /> To: Alaniz, John [EHD]; Sammons, Lynsey [EHD] <br /> Cc: Suszycki, Michael [EHD]; Craig Feaga; Brian Kolsters; Nick Snoreen; Robert Jackson; <br /> Donald Ning <br /> Subject: Re: PR0522736 -4101 Arch Rd. - PBR <br /> Thanks for continuing the dialogue. I want to ensure that we meet your expectations while also finding a solid <br /> solution for the Lamar Tool and Die business. <br /> think we need to clarify what actually occurs at the facility. I could have been clearer initially, so I want to <br /> apologize for this upfront. <br /> The coolant that leaves the CNC machines and enters the recycling system is filtered for reuse in the industrial <br /> process. It is reused until it is spent, at which point it is evaporated. It is not a waste in any of those processes.The <br /> only material leaving the system would be the filters and sludges from the coolant recycler and evaporator. <br /> also want to use this opportunity to confirm that the other waste streams, such as mop water and part- <br /> washing determinations, are in progress.With the recent rains,the labs are way behind.Just to note,these waste <br /> streams do not go into the evaporator. <br /> should note that this is a completely different process from what happens in Modesto, as the die spray IS <br /> hazardous waste, much to Craig's joy in managing it. <br /> For that reason,the evaporator is not being used for hazardous waste treatment. Please let me know if you agree <br /> so that LTND can proceed with evaporating once again. <br /> Please give me a call if you have any additional questions about the process or need additional information. I <br /> appreciate your cooperation on this process. <br /> Best regards, <br /> Andrew Guglielmo, MS, QSP, QSD/P <br /> Senior Project Manager, CA Compliance Services <br /> �; KERAM I DA <br /> +1 (805) 423-6826 (m) <br /> +1 (916) 928-6169 (o) <br /> aquglielmo@keramida.com <br /> www.keramida.com <br /> From:Alaniz,John [EHD] <jalanizl@sjgov.org> <br /> Sent: Monday,April 20, 2026 3:40 PM <br /> To:Andrew Guglielmo<aguglielmo@keramida.com>; Sammons, Lynsey [EHD] <Isammons@sjgov.org> <br /> 1 <br />