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Baker, Lydia [EHD] <br /> From: jmen209 <jmen209@yahoo.com> <br /> Sent: Wednesday, May 26, 2021 1:42 PM <br /> To: Baker, Lydia [EHD]; John Ackerson <br /> Subject: RE: John Ackerson <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 /> Hi Lydia, <br /> After doing some research we decide to handle the grinding dust as hazardous waste. <br /> I appreciate all your help in helping us resolve this matter. <br /> Kind Regards, <br /> Juan Mendoza <br /> Sent from my Sprint Samsung Galaxy S9+. <br /> -------- Original message -------- <br /> From: "Baker, Lydia [EHD]" <lbaker@sjgov.org> <br /> Date: 5/18/214:06 PM (GMT-08:00) <br /> To:jmen209 <j men209 @yahoo.com>, John Ackerson<ackersonequipmentrepair@gmail.com> <br /> Subject: RE: John Ackerson <br /> Hello Juan, <br /> I don't think a caliper is able to measure the dust from the grinding machine to determine if it is less than 100 <br /> microns. Here are the options that I can think of: <br /> -Handle the grinding dust as hazardous waste. (Larger pieces of metal can still be handled as scrap metal) <br /> -Provide a SDS sheet for the metal that shows the metal does not contain hazardous components <br /> -Have the grinding dust analyzed by a lab for particle size and CAM17 metals <br /> 1 <br />