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2701 Prospect Park Drive <br /> Sacramento,California 95670 <br /> Tel (916)4440123 � VE Fax (916)615-8805 'J JjU17 <br /> www 6rownandcaldwell com <br /> AUG 2 4 2005 <br /> August 23, 2005 ENVIRONMENT HEALTU <br /> PERMIT/SERVICES <br /> GG]],16,61 <br /> -- Mr Michael Inf rna, R E H S _P��,,,. <br /> San Joaquin County Environmental Health Department N� Irr <br /> 304 East Weber Avenue <br /> Stockton, California 95202 017/128253-001/3 <br /> Subject Addendum to July 27, 2005 letter, T&T Trucking Inc , 11396 North 99 <br /> Highway,Lodi, California <br /> 1° <br /> Dear Mr Infurna <br /> As requested in your July 27, 2005 letter requiring additional information regarding <br /> the July 14, 2005 Work Plan for Remediation Well Installation and Soil Vapor <br /> Extraction and Air Sparge Pilot Tests (Work Plan), this letter serves as the <br /> addendum to the Work Plan <br /> Brown and Caldwell concurs with many of the County's questions and concerns <br />' We respectfully point out that the limited pilot test is partially intended to provide <br /> the details necessary for final design, which will address the County's concerns and <br /> ours as well Additionally, if effective, the effort will commence mass reduction in <br /> the short term, a goal on which we all can agree <br /> This letter addresses your comments chronologically as represented in your <br /> July 27, 2005 letter <br /> EHD Page 1, paragraph 1, hne 2 "EHD is unfamiliar with ART technology <br />' and the data/case histories did not address remedial activities specifically for <br /> MtBE contamination in ground water" <br /> BC The technology components used by Accelerated Remedial Technology, <br /> LLC (ART) are proven and acceptable to California Environmental Protection <br /> Agency (CalEPA) and U S Environmental Protection Agency (EPA) All the <br /> components of the ART technology are known and proven remediation <br /> technologies that have been engineered to work concurrently and synergistically in <br /> a dual phase configuration The components include soil-vapor extraction, air <br /> t sparge, and air stripping, all of which the County has approved for other projects <br /> All of these technologies are documented in Federal, State and local guidance <br /> The groundwater remediation portion of the ART technology includes <br /> P\2x000\128253-'I&1 1 rucking SVC\S)C Respontic doc <br /> Environmental Engine er s & Consultants <br />