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Complaint Investigation Summary Report #: 5105 <br />COMPLAINT ID: COHONB005 Site Location: 25501 S GATEWAY BLVD <br />Activity Date <br />Activity Summary <br />Recorded by <br />01/31/2022 Discussed ER call received by Lydia Baker EHD and Haza Saeed EHD. Spill <br />report was forward to me from Lydia B. Caller indicates CALLER IS REPORTING <br />ERNEST <br />THE RELEASE OF AN <br />UNKNOWN AMOUNT OF ANHYDROUS AMMONIA FROM A THE <br />REFRIGERATION UNIT AT THE FACILITY. THE RELEASED MATERIAL WENT <br />INTO THE AIR AND ATMOSPHERE. THE CAUSE OF THE RELEASE IS DUE <br />TO EQUIPMENT FAILURE. REPAIRS MADE, <br />Called Jimmee Kim Facilities Manager for Costco 172. Discussed time line of <br />events. <br />Timeline given was, <br />No employees were on site during release. <br />Openeing manager arrived at the front office at 3:17am and noticed an ammonia <br />alarm activated, and called Appco. <br />Employees arrived at 4am and were told to stay in their vehicles <br />5am apcco arrives on site and finds a valve leak. Apcco isolated condenser 37, <br />and pumps it down. <br />approx 740 fire department arrive, and all clear is given. <br />10am Verisk3E compliance company is contacted <br />10:44 Lydia B. is contacted. <br />Discussed on site visit with Jimmee K. and he indicated he will have the managers <br />on site to show us around. <br />Drove to 25501 S Gateway Blvd Bldg C in Tracy with Haza Saeed. Discussed <br />situation with Apcco employee who showed the affected evaporator, and alarm <br />logs indicating the alarm went of for a 30 ppm hit on friday at 9:50 pm. <br />01/31/2022 Responded and assisted Fred Ernest with this Complaint. For Complaint activity <br />and details, please refer to Fred narratives and report. <br />SAEED <br />01/31/2022 Discussed group with Muni Naidu EHD, Melissa Nissim EHD, Haza Saeed EHD <br />and myself discussing events leading to accidental discharge from Costco 172. <br />ERNEST <br />Updated Muni N. and Melissa N. about site visit, and more information gained <br />from discussions with Appco while on site. <br />5105 rpt Page 2 of 3