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plume boundary, and 4) the dissolved concentration of benzene is less than 1,000 ug/I, and <br /> the dissolved concentration of MTBE is less than 1,000 ug/I. In relation to other criteria for <br /> closure, a sensitive receptor survey has been completed for the site, and the supply or <br /> surface water features that were identified are not likely to be impacted by the remaining <br /> impact at the site. Soil-vapor sampling has also been completed, as required, for the site. <br /> Lastly, the residual impact in soil and groundwater at the site should continue to naturally <br /> degrade. <br /> In conclusion, AGE believes that the additional directed assessment is not necessary or warranted <br /> and would not provide additional useful data that is necessary to evaluate the site for closure. AGE <br /> requests that the Water Board consider rescinding the directive for additional site assessment <br /> outlined in the 06 August 2018 letter. <br /> Should you have any questions regarding this email, please do not hesitate to contact our offices. <br /> Regards, <br /> AdvancedGeo <br /> Environmental <br /> n� <br /> M EmpbyrY owrxNCo mp�ly <br /> Daniel Villanueva <br /> Senior Project Geologist <br /> Advanced GeoEnvironmental, Inc. <br /> Environmental• Compliance •/ndus&w1Hygiene • Geotechnical <br /> Phone: 800-511-9300 <br /> Fax: 888-445-8786 <br /> dvillanueva@advgeoenv.com <br /> www.advgeoenv.com <br /> IX/orlang in Partnership with People, Business and the Environment" <br /> This email/fax message is for the sole use of the intended recipient(s)and may contain confidential and privileged information.Any unauthorized review, <br /> use,disclosure or distribution of this email/fax is prohibited.If you are not the intended recipient,please contact the sender by email/fax and destroy all <br /> paper and electronic copies of the original message. <br /> From: Buehler,Alan@Waterboards<Alan.Buehler@Waterboards.ca.gov> <br /> Sent:Tuesday, October 16, 2018 8:46 AM <br /> To: Daniel Villanueva <dvillanueva@advgeoenv.com> <br /> Subject: Ralph's Square <br /> Daniel— <br /> I just wanted to follow up on the status of your response to my request for a Work Plan. Per my 8/6/18 letter, it was <br /> due 10/12/18. <br /> Mann, M. gueKer, P.G. <br /> Engineering Geologist I UST Enforcement Unit <br /> Central Valley Regional Water Quality Control Board <br /> 3 <br />