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Page 1 of 2 <br /> Angelica Sandoval Marin [EH] <br /> From : Scott Bittinger [sbittinger@stratusinc.net] <br /> Sent: Thursday, December 19, 2013 7: 07 AM <br /> To : Angelica Sandoval Marin [EH] <br /> Cc: Nuel Henderson [EH]; dbarr@stratusinc. net; 'Gowri' <br /> Subject: RE: 1817 South Fresno Ave (Barnes Trucking) <br /> Attachments : SKMBT_C35313121907440. pdf <br /> I'll have to get back to you on some of the specifics. Initially, it was started up for a few hours and operated long <br /> enough to get the water samples needed to verify proper water disposal. So we had 'down time' in late <br /> November/early December for this, but this was a necessary shut down. Between December 6 and 9, the system <br /> was down. I suspect that it went down due to cold weather, as this could affect the water treatment and flow part <br /> of the system. With the warmer weather, and above freezing overnight conditions, the system has stayed <br /> operational. <br /> About a week ago, we moved a few drop tubes/stingers around to extract from some different wells (see bottom of <br /> attached table 2b for specifics). As the system has operated continuously, we have begun to see improved radius <br /> of influence, evidenced by induced vacuum being observed at several observation wells where it hadn't been <br /> noticed before. In addition , the influent air contaminant concentrations have increased over the past week, <br /> indicating continuing performance improvements. <br /> I ' ll keep you posted when we have the next data set. <br /> Scott <br /> From : Angelica Sandoval Marin [EH] [mailto :amarin@sjcehd .com] <br /> Sent: Wednesday, December 18, 2013 12: 52 PM <br /> To: Scott Bittinger <br /> Subject: RE: 1817 South Fresno Ave (Barnes Trucking) <br /> Scott, <br /> Thank you for the update of DPE event. In your email, you indicated that you had some downtime. Can you <br /> clarify how long the downtime was and the reason it was down? <br /> look forward to receiving your report. <br /> Thank you , <br /> Angelica Sandoval Marin <br /> From : Scott Bittinger [mailto :sbittinger@stratusinc. net] <br /> Sent: Wednesday, December 11, 2013 1 :45 PM <br /> To: Angelica Sandoval Marin [EH] ; Nuel Henderson [EH] <br /> Cc: 'Gowri'; dbarr@stratusinc. net <br /> Subject: 1817 South Fresno Ave (Barnes Trucking) <br /> Good afternoon. I am writing to provide you with a brief summary of the DPE event so far. In general, <br /> there appears to be some improvement regarding the mass extraction rates during this event, when <br /> compared to the spring 2013 data, but in general, the results are similar. Using the most recent data, we <br /> are removing about 2. 5 pounds of GRO per day from the subsurface in the vapor phase. This will likely <br /> increase as water levels drop over time, during a longer operating period (we have had some downtime <br /> that would have resulted in water level recovery and lower mass extraction rates, that appear to be <br /> attributed to cold/freezing water & treatment of water) . <br /> 12/1912013 <br />