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Lori Duncan [EH] <br /> From: Kirk Larson [KTLarson@waterboards.ca.gov] <br /> Sent: Tuesday, January 10, 2012 2:05 PM <br /> To: Lori Duncan [EH] <br /> Subject: RE: FW: Claim No 8525, Your Case No. 2021 <br /> Neither of these private wells are impacted and the plume is shrinking in size and <br /> concentration rapidly. It doesn't not appear more likely that a new well would provide <br /> safer drinking water than the current well and may actually create a new conduit for <br /> contaminant movement. Though it's not my site, I would be inclined to continue to monitor <br /> this site. Kirk <br /> Kirk T. Larson, P.G. <br /> Five Year Review Unit <br /> Division of Financial Assistance <br /> 1001 I Street <br /> Sacramento, CA 95814 <br /> (916) 341-5663 <br /> ktlarson@waterboards.ca.gov <br /> >>> "Lori Duncan [EH] " <lduncan®sjcehd.com> 1/9/2012 10:40 AM >>> <br /> Kirk, <br /> The onsite well at the subject site, 15634 Steinegul Road, was installed in 1981 and is <br /> 215 feet deep. It is screened from 195 ' -2151 , but is gravel packed from 50 feet beg .to <br /> total depth. The grout seal is 50 feet deep. <br /> The neighbors well, located at 15400 Steinegul Road, is older, installed in 1972. It <br /> appears to be an open bottom well, total depth of the boring was 112 feet deep, but total <br /> depth of the casing is noted as 99 feet deep. It also only has a 50-foot grout seal. <br /> Both wells are 6-inch diameter casings. Relocation of both wells would be part of a <br /> closure plan. <br /> Thank you for getting back to me on this. <br /> Lori Duncan, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> lduncan@sjcehd.com <br /> (209) 468-0337 phone <br /> (209) 468-3433 fax <br /> -----Original Message----- <br /> From: Kirk Larson [mailto:KTLarson@waterboards.ca.gov] <br /> Sent: Monday, January 09, 2012 9:52 AM <br /> To: Lori Duncan [EH] <br /> Subject: Re: FW: Claim No 8525, Your Case No. 2021 <br /> Can you bring me up to speed? What are the screen intervals of the two domestic wells? <br /> Are the well replacements proposed are part of a closure plan? Thanks, Kirk <br /> Kirk T. Larson, P.G. <br /> Five Year Review Unit <br /> Division of Financial Assistance <br /> 1001 I Street <br /> Sacramento, CA 95814 <br /> (916) 341-5663 <br /> ktlarson@waterboards.ca.gov <br /> >>> "Lori Duncan [EH] " <lduncan@sjcehd.com> 1/5/2012 11:02 AM >>> <br /> Hi Kirk, <br /> 1 <br />