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SAN _J O A Q U I N Environmental Health Department C0UNTY-- Complaint Record Daily Time and Activity Summary from 12/14/2017 to 12/28/2017 for C00045277 located at 2121 N ZUCKERMAN RD Activity Date Recorded by 12/15/2017 Completed Emergency Response Record Form and my narrative from yesterday. PE 2546 FLORIDO 60 min SC 544 Received an email from Ralph Roberts saying that PSC is on site conducting the clean-up by removing oil-impacted soil and gravel and placing it into one of PG&E's onsite roll-off bins. I called Ralph, however he did not know when PSC would be done with the clean up. Ralph also did not yet know the cause of the release, however he did say he believes the release has stopped. I told Ralph to keep me updated and to inform me once he knows what time PSC will almost be done with the clean-up so that I can go to the site to verify. Ralph agreed. I emailed Ralph asking him to send me the contact information for the PSC contact performing the clean up. 12/15/2017 Received a call from Ralph Roberts, who said PSC was on site and almost done PE 2546 FLORIDO 120 min with the spill clean up. I told Ralph I would meet him at the site shortly. SC 544 1:45 PM -Arrived on site and met with Ralph Roberts and Dan Tank of PG&E. They still did not know the cause of the release of production fluid. Ralph said that each of the three rain water holding tanks and the one exempt non hazardous production fluid holding tank did not show a decrease in fluid level. Ralph suspects that either the ground water is coming to the surface and with it bringing up production fluid that was previously in the ground, or there is an issue with the underground piping. At the time of inspection, I did not observe any oily reddish sheen on the water and soil that I witnessed yesterday. PSC removed the impacted soil, grave, absorbent pads, and boom and put them into a roll of bin nearby at the PG&E facility. The PSC truck that pumped up the impacted water from the soil had hauled the water off the site to Seaport. Ralph indicated that samples of the soil were taken yesterday for testing. I told Ralph to provide me with the soil test results, the test results for the production fluid, and the disposal records for the waste generated. Ralph agreed. Ralph indicated that they would not backfill the excavated area with gravel until they determine the cause of the release. Ralph is to monitor the area to see if more sheen becomes visible in the coming days. I told Ralph to notify me if sheen becomes visible. Ralph agreed to keep me updated. Left site at 2:45 PM 12/21/2017 Reviewed production fluid (C5/C6 tanks) and rain water analytical results (D2 PE 2546 FLORIDO 30 min tank), received on 12/15/17 from Ralph Roberts of PG&E. Benzene and Toluene SC 544 results for the production fluid in the C5/C6 tanks show .045 and .055 mg/L, respectively, which are above the maximum concentration levels(MCL)for those two compounds (.001 mg/L for Benzene and .15 mg/L for Toluene). Ralph Roberts emailed me a photo of the shipping document for the impacted water that was removed from the soil by PSC on 12/14/17. The 1500 gallons of fluid removed was taken to Seaport Refining and Env. LLC at 679 Seaport Blvd. Redwood City, CA 94063. Page 2 of 4