Laserfiche WebLink
From: Sewalia,Siddharth@Waterboards <br /> To: Nicole Gotberg;Srinivasa Varadhan <br /> Cc: Meeks.Steven(a)Waterboards;Roger Smith(&oxv.com;Beaay.Jenifer;Rvan.mock(lsimolot.com; <br /> Ian.Rlchardsonno and.com;Scott Forbess;Evan Cox <br /> Subject: RE:GSH Former OCC Lathrop Facility-Site Characterization Work Plan <br /> Date: Wednesday,August 8,2018 9:51:47 AM <br /> Hi Nicole, <br /> We concur with the proposed changes to the well design. Please proceed with implementing the <br /> work pending approval from the San Joaquin County. <br /> For our records, please submit a brief addendum and a drawing showing the new well design. <br /> Thanks, <br /> Sid Sewalia <br /> Water Resource Control Engineer <br /> California Regional Water Quality Control Board,Central Valley Region <br /> 11020 Sun Center Drive,Suite 200 <br /> Rancho Cordova,CA 95670 <br /> Phone:916.464.4658 <br /> From: Nicole Gotberg [mailto:NGotberg@Geosyntec.com] <br /> Sent:Wednesday,August 08, 2018 9:44 AM <br /> To:Sewalia,Siddharth@Waterboards<Siddharth.Sewalia@waterboards.ca.gov> <br /> Cc: Meeks,Steven@Waterboards<Steven.Meeks@waterboards.ca.gov>; Roger_Smith@oxy.com; <br /> Beatty,Jenifer<Jenifer.Beatty@arcadis.com>; Ryan.mock@simplot.com; Ian.Richardson@ghd.com; <br /> Scott Forbess<SForbess@Geosyntec.com>; Evan Cox<ECox@Geosyntec.com> <br /> Subject: RE: GSH Former OCC Lathrop Facility-Site Characterization Work Plan <br /> Sid, <br /> For the GSH Former OCC Lathrop Facility Site Characterization we will be making the following <br /> changes to the monitoring well design from the Work Plan due to San Joaquin County requesting <br /> that the grout seal for the monitoring wells be installed in a single continuous lift: <br /> • The monitoring wells installed as part of the current field effort will be installed with low <br /> carbon steel casing and stainless steel screen so that the grout can be poured in a single lift as <br /> requested by the County without compromising the integrity of the well casing. <br /> • Due to the availability of steel casing some of the monitoring wells may be installed as 2-inch <br /> rather than 4-inch diameter wells. <br /> Please let me know if you have any questions or concerns with this change from the work plan. We <br /> plan to start installing the first well with steel casing tomorrow(8/9/18). <br />