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I <br /> Page 1 of 1 <br /> Vicki McCartney [EH] <br /> From : Vicki McCartney [EH] <br /> Sent: Tuesday, August 19, 2014 12: 03 PM <br /> To: ' Khandwala, Jatin@Waterboards' <br /> Subject: RE: Canepa's Car Wash - 6230 Pacific Avenue, Stockton - Case 1225 <br /> Good morning Jatin , <br /> I did a cursory review of the file and "According to the former consultant, William H . Fox of WHF (Environmental), <br /> the SVE wells were installed without compiling geological logs and without the collection of laboratory samples as <br /> agreed upon by the PHS/EHD, due to time constraints. Mr. Fox indicated that based on field observations, all of <br /> the SVE wells showed signs of gasoline contamination during installation. An internal combustion unit ( ICU) was <br /> installed at the site for vapor extraction and treatment under the Authority to Construct issued by the San Joaquin <br /> Valley Unified Air Pollution Control District (APCD) , dated October 7, 1993. The ICU was started on March 11 , <br /> 1994, and operated through June 10, 1995." <br /> Based on this information , I believe that the extraction system was recommended on the initial assessment (1994- <br /> 1998). <br /> I have been in the field this morning but I should be in the office for the rest of the day if you need additional <br /> information. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> Stockton, California 95205 <br /> Phone: (209) 468-9852 <br /> Email: vmccartney(@sjcehd. com <br /> From: Khandwala, Jatin@Waterboards [mailto:Jatin. Khandwala@waterboards.ca .gov] <br /> Sent: Tuesday, August 19, 2014 8 : 24 AM <br /> To: Vicki McCartney [EH] <br /> Subject: RE: Canepa's car Wash - 6230 Pacific Avenue, Stockton - Case 1225 <br /> Vicky, thanks for the info . Apparently, they had installed SVE system in 1994 prior to collecting site <br /> assessment info. MWs 1-4 were installed in Nov 93 and SVE started operation in March 94. Their <br /> previous consultant had pointed out this in one of the GWM report (Oct 2006) . <br /> Based on the review of MW 1 data, it seems that concentration levels jumped when extraction event was <br /> started . At this point I would like to find out if the extraction system was recommended based on the <br /> initial assessment (94-98) or was it recommended at a later date (2002 or later)... . . <br /> Any idea ? <br /> Jatin <br /> I <br /> i <br /> 8/ 19/2014 <br />