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i • <br /> Gabriel Gonzalez [EH] <br /> From: Gabriel Gonzalez [EH] <br /> Sent: Tuesday, November 25, 2014 2:58 PM <br /> To: 'Jason Duda' <br /> Subject: 16 E. Harding Destructions <br /> Hi Jason, <br /> I received the permit application packet for destructions at 16 E. Harding Way,Stockton.The table included in the <br /> packet that describes the depths of wells, method of destruction, ect... has some items I'd like to point out; please see <br /> below. After reviewing, please make necessary revisions to the table and email it back to me. <br /> • DMW-2 is listed as having pressure grout for abandonment method.This well must be over-drilled (see EHD <br /> letter April 16, 2014). <br /> • According to information in the Conceptual Site Model dated November 9, 2012: <br /> o EW-5 has an original borehole diameter of 12 inches. <br /> o DMW-4, DMW-5, DMW-6, DMW-7, DMW-9, DMW-10 original borehole diameters were 6 inches. <br /> o Total depths appear to be... <br /> • SVE-1 31.5 feet <br /> • SVE-2 31.5 feet <br /> • EW-1 50 feet <br /> • EW-641.5 feet <br /> • MW-8 41.5 feet <br /> In addition, I have been informed by my supervisor,Adrienne Ellsaesser,that the ozone sparge wells(S-1 through S-6) <br /> may be over-drilled with an 8-inch diameter auger, however, if no material comes up then a 16-inch diameter auger will <br /> be asked to be used on these ozone sparge wells. <br /> Please let me know if you have any questions. <br /> Sincerely, <br /> Gabriel Gonzalez <br /> 1 <br />