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Complaint Investigation Summary <br /> Report #: 5105 <br />COMPLAINT ID: C00052900 <br /> <br />Site Location: 16777 HOWLAND RD <br /> <br />Received by: EE0009830 SAUERS <br /> Received Date: 11/2/2020 <br /> Complaint Received Via: PHONE <br />Assigned To: EE0009828 MURO <br /> Assigned Date: 11/2/2020 <br />Program/Element Code 2546 - Release/Spill Response (excluding Joint Team) <br />Nature of complaint: <br />UNKNOWN AMOUNT OF DEFLUORINATED PHOSPHORIC ACID SEEPING FROM UNDER A STORAGE TANK. SPILL IS NOT CONTAINED/HAS <br />NOT STOPPED. <br />PROPERTY INFORMATION <br />Property Name: <br />Site Location 16777 HOWLAND RD <br /> District <br />003 - PATTI, TOM <br />LATHROP, CA 95330 <br /> Location Code 07 - LATHROP <br />Cross Street D'ARCY <br /> APN <br />19818005 <br />Complaint Status: <br />Date Abated: 91- 2- /- 2-2-i Abated By: <br />Activity Summary <br />Activity Date <br />11/02/2020 <br />11/02/2020 <br />11/02/2020 <br />11/02/2020 <br />11/02/2020 <br />Discussed complaint with Melissa Nissim, CUPA PC, Muniappa Naidu, Asst. <br />Director, Elena Manzo, Ld Sr REHS, and Claudia Muro, EHS. <br />Called Ryan Mock, JR Simplot Environmental Manager, to notify him that I will <br />meet him on-site. <br />5pm - 6:30pm: Left EHD for facility. Arrived on-site and met with Ryan Mock and <br />the Battalion Chief Jones of Lathrop-Manteca Fire Department. Observed the <br />leaking tank labeled Phosphoric Acid, 23.5 TK, 4927 TK449. Observed leakage of <br />phosphoric acid on the gravel, about one foot in width, around the diameter of the <br />tank bottom. Ryan states there may or may not be a concrete pad underneath the <br />tank; on-site personnel will be inspecting the tank every hour for further leakage; <br />the phosphoric acid will begin being pumped from the tank and into rail cars <br />tomorrow; once the tank is emptied the tank's inner bladder will be inspected and <br />removed for repairs, and the inside of the tank will be inspected and repaired; and <br />the EHD will be notified if the leakage worsens and updated on the remediation <br />progress. Ryan provided a copy of the Safety Data Sheet for the phosphoric acid <br />inside of the tank. Updated Muniappa Naidu, Asst. Director. Left site for home. <br />Arrived home. <br />Assisted C. Muro with the initial phone calls to facility to obtain the spill <br />information. Provided updates to M. Naidu and M. Nissim (program coordinator); <br />due to the potential severity of the incident. —50K gallon phosphoric acid tank <1 <br />pH is leaking, the leak can't be stopped at this time, facility will bring rail cars to <br />start material off-load. <br />Called Lathrop Manteca Fire department, (209) 941-5100, spoke with Daniel <br />Suarez, Fire engine engineer, they didn't receive the spill report. Emailed spill <br />report copy to dsuarez@lmfire.com. Daniel indicated that their fire engine will be <br />responding to the incident. <br />Generated Notice to Abate. Emailed to Ryan Mock (Simplot) at <br />Ryan.Mock@simplot.com and cc'd Elena Manzo (EHD). <br />Recorded by <br />FLORI DO <br />FLORI DO <br />FLORIDO <br />MANZO <br />MURO <br />5105. rpt <br /> Page 1 of 9