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E: mkith@sicehd.com <br /> From: Buehler,Alan@Waterboards [mailto:Alan.Buehler@Waterboards.ca.gov] <br /> Sent:Thursday, March 07, 2019 1:59 PM <br /> To: Lor Xiong [EH] <Ixiong@sicehd.com>; Daniel Villanueva <dvillanueva@advgeoenv.com> <br /> Cc: Michael Kith [EH] <mkith @sicehd.com> <br /> Subject: RE: 2122 S Airport Way. <br /> Lor— <br /> I spoke with Daniel. The well is fine to be installed with up to 25 feet bgs,though this can be shortened if lithologic <br /> conditions observed during installation allow. The longer screen was proposed due to a potential clay layer, and need to <br /> both reach sufficient GW for sampling as well as have the top of screen remain above the water level and not be <br /> submerged. <br /> AL2 vi, M. gLcM ler, P.G. <br /> Engineering Geologist I UST Enforcement Unit <br /> Central Valley Regional Water Quality Control Board <br /> California Professional Geologist#9340 <br /> 11020 Sun Center Drive, Suite 200, Rancho Cordova, CA 95670 <br /> Phone 916.464.4615 1 Fax 916.464.4704 <br /> alan.buehler@waterboards.ca.gov <br /> pF CAUF09y/q <br /> +r • <br /> � o <br /> m <br /> Q �[ <br /> O � <br /> Z <br /> Q.. <br /> DUAL4t� <br /> From: Lor Xiong [EH] <Ixiong@sicehd.com> <br /> Sent:Thursday, March 7, 2019 9:55 AM <br /> To: Daniel Villanueva <dvillanueva@advgeoenv.com> <br /> Cc: Michael Kith [EH] <mkith @sicehd.com>; Buehler,Alan@Waterboards<Alan.Buehler@Waterboards.ca.gov> <br /> Subject: RE: 2122 S Airport Way. <br /> Daniel, <br /> I understand that it is a "proposed" screening interval,that you cannot commit to the screening level, and that it can be <br /> adjusted in the field. I spoke to Alan Buehler yesterday and he indicated that 25ft of screen is not acceptable. Please <br /> confirm with Alan Buehler that he is okay with installing a screening interval that is greater than 20ft, in an event that <br /> the lithology indicates the screen must be more than 20ft. Please send me an email to confirm the screening interval. <br /> Please send me an addendum to the work plan and well diagram if an 25ft screen interval is not acceptable. <br /> 2 <br />