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P: (209) 616-3050 1 F: (209)468-3433 1 E: eflorido@sigov.org <br /> y SANJOAQUIN <br /> COUNTY— <br /> Greilness gru.s hrfr. <br /> From: Scott Renfrew<srenfrew@iesengineering.net> <br /> Sent: Friday, February 4, 2022 11:16 AM <br /> To: Florido, Elianna [EHD] <eflorido@sjgov.org>;Tony Grizelj <tonyg@JLPrecision.com> <br /> Cc: Rob Ashe<rashe@JLPrecision.com>; Chad Yelm <cyelm@mfinish.com>; Henry, Michelle D [EHD] <br /> <mhenry@sjgov.org>; Manzo, Elena K. [EHD] <emanzo@sjgov.org>; Baker, Lydia [EHD] <Ibaker@sjgov.org>; Backus, <br /> Garrett [EHD] <gbackus@sjgov.org>; Scott Renfrew<srenfrew@iesengineering.net> <br /> Subject: RE: Metal Finishing Solutions RTC Follow Up <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 /> Elianna, <br /> Please see the re-sampled (12/7/2021)Tank 9 laboratory analysis—attached. <br /> The Fluoride sample results of 52.8 mg/L is below the hazardous waste limits of 180 mg/L. <br /> The facility will continue to monitor and adjust Tank 9 pH to ensure compliance with the regulatory limits. <br /> MFS will continue to treat the rinse tank waters in onsite water treatment neutralization system. <br /> As a courtesy I have also attached the previously submitted September (9/21/2021) laboratory analysis—attached. <br /> Please do not hesitate to contact me with any questions or comments. <br /> Thank you, <br /> Scott Renfrew, Senior Project Manager <br /> 4 integ ted <br /> Engineering <br /> 5 <br /> ervices <br /> EXPERIENCE I KNOWLEDGE I INNOVATION <br /> UMTACLAPAPA I ATLANTA GA I AUSTIN,T9 <br /> 1E$enginaering rW <br /> 70 Saratoga Ave., Santa Clara, CA <br /> o: (408) 261-3500 <br /> d: (669) 699-0234 <br /> m: (831) 566-5533 <br /> srenfrew@iesengineering.net <br /> Please note;IES has new direct dial TEAMS phone numbers. My new direct number is(669)699-0234. While our main office <br /> number shall remain the same, we will no longer be using extensions.Please update your records accordingly. <br /> From: Florido, Elianna [EHD] <eflorido@sjgov.org> <br /> Sent:Thursday, February 3, 2022 4:56 PM <br /> To: Scott Renfrew<srenfrew@iesengineering.net>;Tony Grizelj<tonvg@JLPrecision.com> <br /> 2 <br />