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— ' <br />` <br /> j <br />� Hi Mike, <br /> Thank you for the March sampling schedule. Items regarding this site are below. information would beappreciated. <br /> 7 EHDwas unable tolocate K4VV'1R, 2R,311 and EW'1boring logs.All boring logs should bemade available on <br /> GeoTnacker. Please provide these, <br /> 7 Third Quarter 2014 Monitoring Report:There are discrepancies with all screen intervals, except MW-7S, K4VV-10 <br /> and MW-11, between the tables in the report and with EHD records/boring logs. Please review and make <br /> corrections nnfuture reports. <br /> 7 GeoTracker: <br /> u K4VV'2m/as /e'surveyed, buttheresurveydatahasnotbeenup|oadedtoGeoTrackerinGeo_Zfmrmat. <br /> Please upload the current survey data. <br /> o EHD letter June 5, 2012 requested upload of all Geo Well data since 2005, but it appears this has not <br /> yet been completed. <br /> o Remediation reports have not been uploaded. Is there more info rmatio n/reaso n regarding this? <br /> ? <br /> Sampling: it appears total depth values have been used for several years according to Geo_Well data on <br /> GeoTracker.Total depths should bemeasured for wells during the sampling event toensure proper calculation <br /> of purge volume and adequate groundwater recharge (80%) prior to sampling. <br /> If you have any questions, I would be glad to provide more information.Thank you for your time and any information <br /> you can provide onthe above items. <br /> Sincerely, <br /> Gabriel Gonzalez <br /> From: Michael Vlach <br /> Sent: Monday, February 23, 2O159:1UAM <br /> To: Gabriel Gonzalez [EH] <br /> Subject: RE: 3OOSouth California Street <br /> VVeare onamodified sampling schedule. VVedoevery well biannually and vvedoMVV-I, 1M,G,8S,1O,1l@kEVV-1 <br /> semiannually inMarch and Sept. <br /> This will bethe March semiannual for 2O15 wewill bedoing MVV-1, {R,5,8S,10,11 & EVV-1. <br /> -Mike <br /> (916)729-5l84 <br /> From: Gabriel Gonzalez [EH] <br /> Sent: Monday, February 23, 2015 8:57 AM <br /> To: <br /> Subject: RE: 3OOSouth California Street <br /> Hello Mike, <br /> | amnow the caseworker for the subject site.Thank you for notifying the EHDofthe upcoming event and ofthe <br />� <br /> GeoTracker uploads. May I please have a list of the wells which are planned to be sampled on March 5th? <br /> Sincerely, <br /> Gabriel Gonzalez <br /> 3 <br />