Operation & Maintenance Statistics for the Soil Vapor Extraction (SVE) system
Conducting quarterly performance tests of system as required by renewed Air Quality Permit. 
Granular activated carbon (GAC) change-out was done in February and May 2013. PCE Influent Concentration Changes with Time PCE Concentration (ug/L) Range of VOC concentrations for influent samples first half of 2003 and first half of 2013: Concentrations In micrograms per liter (µg/L). A total of approximately 286.1 lbs of PCE have been removed. A total of 336,529,705 gallons of GW have been pumped, treated and discharged as of 2nd qtr 2013. To this point the SVE system has removed approximately 5,713.4 lbs of PCE from soil. The soil vapor extraction (SVE) system was started November 2007. To this point the groundwater remediation and treatment system has removed approximately 286.1 lbs of PCE from groundwater. The groundwater remediation and treatment system was started January 2003 and was fully operational February 2003. gauge and valve replacement/calibration, and. granular activated carbon (GAC) replacement. shutdown of extraction well EW-1 and startup of extraction well CC-5. Repairs to the groundwater treatment system have included:. EW-1 was shutdown because of low pumping rate. EW-3 and EW-4 were shutdown because of low PCE concentrations in 2009. The pumps in extraction wells CC-5 and EW-2 are only pumps currently in operation. 
Installed a groundwater monitor well on East Colter Street and one on East Medlock Drive.Conducted a passive soil gas survey along Central Avenue north of Camelback Road.Conducted Industrial Survey in the area.compiles groundwater monitoring reports on a semi annual basis. conducts site activities weekly to keep remediation systems operational. ADEQ prepares operation & maintenance (O&M) reports for the Groundwater Remediation and Treatment System and the Soil Vapor Extraction (SVE) System on a quarterly basis.Vapor samples were collected from the SVE system twice monthly or monthly. Groundwater samples were collected from the extraction wells and groundwater treatment system quarterly and monthly, respectively.Groundwater samples were collected from monitor wells during the first and second quarters of 2013.SVE system and groundwater treatment system continue to operate and are fully funded.Groundwater Treatment Compound EW-1 CC-5 EW-2 EW-3 SVE Compound SVE-1 EW-4 SVE-FC SVE-MP1 SVE-2S SVE-2D SVE-MP2 Central and Camelback WQARF Site Kevin Snyder, Project Manager Wendy Flood, Community Involvement Coordinator Andre Chiaradia, Unit Manager Aug6:00pm
0 kommentar(er)
