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y SH J O A Q U I N Environmental Health Department CSU � 1 Y Complaint Record Daily Time and Activity Summary from 9/3/2019 to 10/14/2019 for C00050417 located at DELICATO VINEYARDS 12001 S HWY 99, MANTECA Activity Date Recorded by 09/04/2019 Received a voicemial at 9:55am from Lisa Luis (209)824-3488 stating that they had PE 2546 SAEED 180 min an an ammonia release this morning and she is notifying us. At 11 am I called lisa SC 544 and told me this morning at 1:30am while a cellar technician was hooking up hoses to wine tank 1508, he sniffed an ammonia. The cellar technician reported the incident. Around 1:40am the Maintenance personnels isolated the ammonia to the tank, and started the investigation. There was no evacuation or exposure due to the release. The insulation on the tank was removed to determine the point of the release on the tank. It was discovered there is a dimple on the tank on spot welded area. It is unknown amount of an ammonia vapor released. The wine tank is located outdoor. The facility will fix the dimple on the tank, pressure test the tank, and re-insulate the tank before running it again. I told Lisa to follow their emergency response/Action plan and call the the EHD main number(209)468-3420. 1 asked lisa why the incident was not reported right away, and told me she is not sure. I discussed the incident with Muni, and confirmed that I have to response. I called Lisa and confirmed she will be there around 12pm. I left the office at 11:35am and arrived onsite at 11:50am. I met with Lisa and walked to the tank. The tank has about 2 x5 feet of insulation removed to determine the point of leak. No sign of corrosion on the tank. The release was determined to be from a welded spot on the tank. The ammonia supply to the tank is isolated, and the wine inside the tank was evacuated until the the tank is repaired. I took photos of the tank and the insulation removed. discussed with Lisa generating Cal OES report. I left the site at 12:23pm. I filled out the complaint info, generated the notice to abate and emailed to Lisa Luis. I generated the emergency response records, prop 65, photo log and printed copies. 10/14/2019 Received the incident investigation report from Lisa Luis on 10/14/2019 for incident PE 2546 SAEED 60 min occurred on 09/04/2019. 1 reviewed and found it incomplete. I emailed Lisa today SC 544 stating, "Thanks Lisa. Recommendation#2 states there is a work order attached to the report. The WO is no attached! Can you please email me a copy?Also, you can update the Cal OES spill report with the quantity calculated. Let them Know this is an update" I received the work order, and the initial incident report from Lisa. I reviewed and printed a copy to attach to the report. Also, the Cal OES spill report was updated, and attached a copy to the report. I printed the narratives, and attached to the report. I abated the complaint report and sent it to the counter staff to be filed. Page 2 of 2