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Lor Xiong [EH] <br />From: Scott <SBittinger@stratusinc.net > <br />Sent: Friday, October 27, 2017 12:12 PM <br />To: Lor Xiong [EH] <br />Subject: RE: 1817 S Fresno Ave <br />Attachments: barnes table.xlsx <br />From: Lor Xiong [EH] [nnailto:Ixiong@sjcehd.com] <br />Sent: Friday, October 27, 2017 12:06 PM <br />To: Scott <br />Subject: RE: 1817 S Fresno Ave <br />Hi, <br />Depending on how long the soil vapor probes are going to be on site. If the soil vapor probes are destroyed the same <br />day or a month after the construction of the vapor probe than it should be fine. If the soil vapor probe is kept longer <br />than a month it will be classified as an monitor well. <br />Please send me a table with depths of all proposed soil borings, soil vapor probes, and monitoring wells. <br />Thanks, <br />Lor Xiong, REHS <br />San Joaquin County Environmental Health Department <br />1868 E. Hazelton Ave. <br />Stockton, CA 95205 <br />lxiong@sicehd.com <br />(209) 468-2807 <br />From: Scott [mailto:SBittinger@stratusinc.net] <br />Sent: Friday, October 27, 2017 11:46 AM <br />To: Lor Xiong [EH] <Ixiong@sicehd.com> <br />Subject: RE: 1817 S Fresno Ave <br />I am the one who hand-wrote the changes in the work plan. <br />There are only two proposed monitoring wells: MW-12 and MW-13. There is a well construction diagram in the packet, <br />that shows the construction information (35' depth). As discussed in the work plan, the actual depth of the well might <br />be modified slightly, depending upon the soil types encountered (ie sands vs. clay, etc.). But tentatively, we are <br />proposing 20' to 35' depth screening interval. However, they could be constructed screened 18' to 33', if the geology <br />dictates a change, for example. <br />Are the soil gas probes classified as wells, or not? Those will just be hand-dug and constructed per the DTSC guidelines <br />for soil gas probes. <br />If you still need a table, let me know. But again, the well construction diagram should tell you everything pertinent to <br />the monitoring well construction for MW-12 and MW-13. <br />1