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` Mike Infurna [EH] <br /> From: Doc_Heath@oxy.com <br /> Sent: Thursday, December 09, 2010 12:20 PM <br /> To: aterrell@waterboards.ca.gov <br /> Cc: Mike Infurna [EH]; ktidwell@thesourcegroup.net; msutton@thesourcegroup.net; <br /> phorion@thesourcegroup.net <br /> Subject: RE: 1904 charter way mw workplan <br /> Thanks Ms. Terrell for the quick review and support. <br /> -----Original Message----- BOG/(o5 <br /> From: Amy Terrell [mailto:aterrell@waterboards.ca.gov] <br /> Sent: Thursday, December 09, 2010 1:10 PM <br /> To: Heath, Doc <br /> Cc: Mike Infurna; 'Kristene Tidwell'; msutton@thesourcegroup.net; Paul Horton <br /> Subject: 1904 charter way mw workplan <br /> Dear Mr. Heath, <br /> In association with the 29 November 2010 Work Plan for Enhanced In-Situ Bioremediation (EISB) of <br /> Shallow Groundwater for the Oxychem Stockton site at 1904 Charter Way (prepared by Source <br /> Group), Glenn Springs Holdings proposes to install 3 injection wells and 3 monitoring wells in the <br /> proposed insitu remediation area, as described in the attached 8 December 2010 Excerpt from the <br /> Well Installation Activities Section of the Work Plan for Enhanced In-Situ Bioremediation (EISB) of <br /> Shallow Groundwater (Monitoring Well Work Plan). <br /> California Regional Water Quality Control Board, Central Valley Region (Central Valley Water Board) <br /> concur with the placement of the injection wells and monitoring wells provided that the installation is <br /> conducted to the satisfaction of San Joaquin County Environmental Health Department. In a 7 <br /> December 2010 email, Mr. Paul Horton of Source Group stated that Glenn Springs Holdings intends <br /> to install the 6 new wells before the close of 2010. <br /> In the In Situ Bioremediation Work Plan, Glenn Springs Holdings proposes to inject HRC-X (a less <br /> viscous formulation of HRC) and 3DME (a modified HRC formulation) into shallow groundwater <br /> through 62 borehole injection points and 3 injection wells within a 100 ft by 100 ft area on the eastern <br /> side of the facility, around MW-5B. The objective is to biologically degrade the groundwater <br /> pollutants 1,2,3-trichloropropane, 1,2-dichloropropane, 1,2-dibromo-3-chloropropane, dinoseb and <br /> nitrate. <br /> The In Situ Bioremediation Work Plan appears to meet the criteria for coverage under the General <br /> Order for InSitu Remediation. While Central Valley Water Board staff will prepare a formal written <br /> response to Glenn Springs Holdings, this email serves as concurrence with the placement and <br /> design of the 6 proposed wells. <br /> If you have any questions, you may contact me as follows. <br /> Amy Terrell <br /> Regional Water Quality Control Board <br /> Central Valley Region <br /> t � <br />