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i <br /> Page 1 of 2 <br /> Mike Infurna [EH] <br /> E - <br /> From : Mike Infurna [EH] <br /> Sent: Friday, April 02 , 2010 9 : 18 AM <br /> To: 'Art Deicke' <br /> Cc: rmarty@advgeoenv.com; wlittle@advgeoenv.com <br /> Subject: RE: Nomellini <br /> ty. <br /> E <br /> From : Art Deicke [mailto :adeicke@advgeoenv.com] <br /> Sent: Friday, April 02, 2010 7 : 50 AM <br /> To: Mike Infurna [EH] <br /> Cc: rmarty@advgeoenv.cwm; wlittle@advgeoenv.com <br /> Subject: Nomellini <br /> Mike , <br /> We will publish a report describing the installation , start-up and initial operation of the DPE <br /> system at Nomellini next week. It will cover the period from June 2009 to January 2010. <br /> This report will recommend making modifications to well EW-1 , which during DPE operations, <br /> contributes significant sediment to the system severely degrading performance. Well EW- 1 was <br /> taken off-line on 09 February. The system now operates continuously without shutting down <br /> every other day or so. However, flip side is that EW- 1 and its surrounding area is highly <br /> impacted . <br /> As you are aware, we are using three wells (AW-1 , VW- 1 and EW-1 ) that were not specifically <br /> designed for DPE . However, as of 19 January 2010, the system had operated over 1 ,000 hours <br /> and a calculated mass of 0 .8 lbs of benzene and 11 lbs of TPH-g had been removed from the <br /> dissolved phase of the extraction and 35 lbs benzene and 942 lbs of TPH-g from the vapor <br /> phase. These numbers are preliminary and need to be PG-reviewed , but show the effectiveness <br /> of this remedy. <br /> Additionally, we will publish the semi-annual report next week, which covered the period from <br /> July to December with a sampling event of 12 October 2009 (preceded start-up). <br /> I will immediately draft the quarterly remediation report upon publication of the installation report. <br /> The quarterly remediation report will cover the period of February and March 2010, and then <br /> every 3 months thereafter. We will stay caught up on reporting. <br /> Upon your review of the installation report, please evaluate our recommendation to modify EW- 1 <br /> as its importance to the remediation cannot be understated . Additionally, specifically designed <br /> DPE wells may need to be installed to address other areas of the impacted soil and ground <br /> water. <br /> Thank you , <br /> Art <br /> 5/3/2010 <br />