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SAN JOAQUIN <br /> Environmental Health Department <br />COUNj <br />Complaint Record Daily Time and Activity Summary from 9/24/2000 to <br />9/24/2021for COJISLPEO located at <br />NEAR 11 W ATHERTON ISLAND <br />Activity Date Recorded by <br />10/29/2020 Discussed (via email) with Elena Manzo the results to the samples of cofferdam PE 2546 MURO <br />42 min water. SC 007 <br />Called Juan Neira (SJAFCA). he reported they are planning to dispose of the <br />water they collected (from the cofferdam incident)which is being held in 55-gallon <br />drum(s), he does not know how much water they collected. They are also planning <br />to dispose of the oily boom. Only the 55-gallon water (collected from incident) and <br />cofferdam water was sampled, not the oily boom or the hydraulic oil. <br />Update Elena Manzo. <br />11/04/2020 <br />48 min <br />Sent email to Juan Neira (SJAFCA) requesting clarification for the two samples PE 2546 MURO <br />taken for analytical lab testing titled as 'background' and 'cofferdam' on the chain SC 007 <br />of custody. <br />Received a phone call from Juan Neira, he reported: <br />Background sample = A water sample was taken from the water outside the <br />cofferdam <br />Cofferdam sample = A water sample was taken from the water within the oily <br />boom. (In other words, oily boom water.) <br />Total oily boom waste generated = one 55-gallon drum. <br />They are waiting for EHD's disposition to dispose of this waste as non-hazardous <br />waste based on the lab results. <br />11/05/2020 Discussed the samples with Elena Manzo via emails. Later discussed in person PE 2546 MURO <br />60 min with Elena Manzo and Lead Senior of Hazardous Wastes Garrett Backus (EHD). SC 007 <br />The lab results for the samples of cofferdam oily boom drippings was accepted. <br />Facility can dispose of the waste generated (one 55-gallon drum) from the cleanup <br />as non-hazardous waste. <br />12/16/2020 Mapped location on envision connect GIS Map. PE 2546 MURO <br />24 min SC 007 <br />12/16/2020 Discussed whether we need a disposal record with Elena Manzo before sending PE 2546 MURO <br />18 min request. SC 544 <br />Sent email to Juan Neira (SJAFCA); requested copy of disposal record for the <br />55-gallon drum of oily water and boom. <br /> <br />01/20/2021 Received email from Juan Neira (SJAFCA) inquiring what they need to provide for PE 2546 MURO <br />6 min <br /> <br /> the boom waste disposal since the receipt will not specify the boom waste. Receipt SC 544 <br />will contain "recyclable/non-recyclable material". Requested copy of disposal <br />record/receipt with statement stating boom waste was contained within the load. <br />09/15/2021 <br />18 min <br />Emailed Juan Neira (SJAFCA) requesting disposal record and statement. PE 2546 MURO <br />Juan Neira called me for clarification on what I was requesting. I explained what I SC 007 <br />was requesting. Juan emailed me a copy of a disposal record and statement <br />stating the wastes generated from the incident were contained with the disposal <br />pickup. <br />Page 4 of 5