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From:Jensen, Evan P <br />To:"Kenny, Brendan@Waterboards"; Backus, Garrett <br />Cc:Nelson, Chris; Ritchie, Steve; McAuliffe, Dan F; Ritchie, Steve; MALINA, CATHERINE (CAT); RODDY, JOHN (CAT); <br />ROBINSON, RICHARD (CAT); Cheung, Angela; Ramirez, Tim; Natesan, Ellen; Fedman, Anna; Moghbel, A Keyvan; <br />Li, Annie (PUC); Yu, Anthony; Yturralde, Nicole; Guerra, Joe; Cheung, Angela; Sibbring, Justin; Macaulay, Ian; <br />Cordua, Matthew; Sebastiani, Enio; Forner, Ed; Carlevaris, Joseph; Jung, Jowin; Baker, Lydia <br />Subject:RE: Tesla Treatment Facility update April 2018 <br />Date:Wednesday, April 24, 2019 2:03:38 PM <br />Attachments:image001.png <br />UV 2040_Lamp 2-2 break_incident report_3-20-19.docx <br />Hi Brendan, Garrett, <br />Below is a summary on the on-going situation at the Tesla Treatment Facility (TTF). <br />The Tesla plant has been back on operation mode since March 11. A lamp break occurred on 3/20. <br />The incident report is attached. The emergency bypass system routed all water outside to the baker <br />tanks where it remains. <br />We have extended the rental period 6 months for the pump, baker tank, etc. which comprise the <br />emergency bypass system. This system is still in place, and functioned as expected during the most <br />recent lamp breaks. Discussions about permitting for on-site water disposal, permanent mitigation <br />design and root cause are ongoing. <br />Thanks, <br />Evan Jensen <br />Evan Jensen, Hydrologist <br />Water Supply and Treatment Division - Water Enterprise <br />San Francisco Public Utilities Commission <br />1000 El Camino Real <br />Millbrae, CA 94030 <br />Office: (650) 871-1010 <br />Mobile: (520) 304-4814 <br />ejensen@sfwater.org <br />