Laserfiche WebLink
Gwlogtcal Tecfutics IHC. Page 5 <br /> ' HUP—Pilot Test <br /> Project No. 425.2 <br /> June 14,2005 <br /> ' 3.1 Radius of Influence Determination <br /> ' The sparge wells are located close to observation wells. The observation wells will be <br /> monitored to determine how long the ozone takes to affect the wells and to estimate the <br /> radius of influence. The concentration of dissolved oxygen (DO) in an aquifer is used as an <br /> ' indicator of air sparging effectiveness (source: "Analysis of Selected Enhancements for Soil <br /> Vapor Extraction", US EPA document EPA-542-R-97-007, September, 1997). This also <br /> applies to ozone usage as elevated DO in the wells will be an indicator that the ozone is <br /> ' oxidizing the subsurface with the 02 reaction byproduct present in the aquifer. <br /> ' 4.0 SCHEDULE & REPORTING <br /> ' 4.1 Corrective Action Progress Reporting <br /> After the pilot test has been concluded, GTI will assess the system effectiveness and use the <br /> ' data to develop a final Full scale Remedial Action Plan to address the groundwater <br /> contamination present at the site. <br /> ' 4.2 Proposed Schedule of Work <br /> Upon work plan approval, GTI will immediately proceed with budgeting/scheduling this <br /> ' project. The information gathered during this phase of work will be presented in a report, <br /> which will include a summary of the pilot test data and recommendations. Dr. Ray <br /> Kablanow, a registered professional geologist, will supervise the project. Copies of the <br /> ' report will be forwarded to the appropriate County and State regulatory agencies (SJC-EHD <br /> and CVRWQCB). <br /> ' Task Description Completion Data <br /> • Submit Feasibility Work Plan—Pilot Testing June 2005 <br /> • Receive approval of plan July 2005 <br /> ' • Develop Budget and Obtain approval of costs from the USTCFP July/August 2005 <br /> • Install Wells/Required equipment on site September 2005 <br /> ' • Conduct Remedial Systems Pilot Test October 2005 <br /> • Post Pilot Test Monitoring event Oct&Nov 2005 <br /> ' • Submit Remedial Action Effectiveness Report January 2006 <br /> • Submit Final Corrective Action Plan February 2006 <br /> t <br />