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1 <br /> Page 1 of 3 <br /> N <br /> Lori Duncan [EH] <br /> From: Lori Duncan [EH] <br /> Sent: Thursday, October 01 , 2009 9 :30 AM <br /> To: 'Olivia Jacobs' <br /> Cc: Nuel Henderson [EH] <br /> Subject: RE: 1817 South Fresno Ave. , Stockton (ZB178N) <br /> Olivia, <br /> Low flow is fine . <br /> State Board Resolution 42 says to "reduce quarterly monitoring requirements to semiannual or less". I interpret <br /> this to include measuring depth to water. <br /> In emails with Aaron of your office we agreed to do the third quarter sampling event in conjunction with the <br /> rebound test. 1 specifically stated only one sampling event was to occur, rebound/3rd quarter. <br /> MW-9 has been approved for installation . However, if the analytical results from IW-3 are non-detect then there is <br /> no justification for another monitoring well . <br /> Wells MW-SB , MW-7 , MW-8 and ASA are on a semi-annual sampling schedule . <br /> Wells MW-1 through MW-4, MW-6 and SVE- 1 (DPE-1 ) are on an annual sampling schedule . <br /> Wells MW-5 and MW-8 should be analyzed for TPH , BTEX, fuel oxy's and lead scavengers. <br /> Wells SVE-1 (DPE- 1 ) and AS- 1 were approved to be analyzed for fuel oxy's and lead scavengers until <br /> contaminant trends were established. It appears they have been analyzed twice for fuel oxy's (both non-detect) <br /> and once for lead scavengers (also non-detect) but it is hard to tell from Table 3 and I'm not going searching for <br /> lab data right now . Standard industry protocal is that four events are used to establish a trend , based on one year <br /> of monitoring and sampling. At this site, with all the other data on these analytes from the other wells , I think two <br /> events is_e_ nough but if you want_four you can do four. <br /> All other wells should be analyzed for TPH and BTEX. <br /> Oxygen infusion point IW-3 has been approved for sampling as part of the rebound test. Analyze for fuel oxys and <br /> lead scavengers if you wish. I don't approve sampling any other remdiation wells. <br /> I am not addressing the request for discrete sampling in an email . If you want to make this request please do so in <br /> detail , in a report, with justification , so that it can be appropriately reviewed by myself and our geologist, and we <br /> can provide written response. <br /> From: Olivia Jacobs [mailto: OJacobs@cleanvatergroup.com] <br /> Sent: Wednesday, September 30, 2009 4 : 19 PM <br /> To: Lori Duncan [EH] <br /> Ce: Arron Wilder; Gavin Fisco; James Jacobs <br /> Subject: FW: 1817 South Fresno Ave., Stockton (ZB178N) <br /> Lori <br /> 10/1 /2009 <br />