Laserfiche WebLink
r <br /> Individual 1-inch diameter schedule 40 PVC pipes connect each AS well to <br /> the AS control panel (Figure 4+-) The contiol panel is used to regulate <br /> and measui e comps essed an flow to the AS well,, A blowei-type pump <br /> (driven by a PTO unit off of the IC engine) is curiently supplying <br /> approximately 40-45 cfm of air, used by the 7 AS wells The infected-aii <br /> flow iate depends on the extiaction tate of the VE wells and system Since <br /> it is driven by a PTO unit off of the IC engine, the an sparge blower will <br /> automatically shut down when the IC engine shuts down, thei eby <br /> preventing the injection of air into the groundwater when the VE system t5 <br /> not opet ating <br /> 4-7 Pump and Treat- System Modification <br /> In order to accommodate the water produced from the two additional <br /> recovery wells, recovery wells RW-4 and RW-5 were removed from t h e <br /> pumping manifold and replaced with the new recovery wells Recovery <br /> wells RW-4 and RW-5 are not positioned downgradient of the underground <br /> storage tanks and dispensers <br /> 5 . 0 SYS'T'EM CONSTRUCTION AND STARTUP <br /> 5 - 1 System Construction <br /> Trenching, undergiound piping installation, and resurfacing took place <br /> between December 4 and 10, 2001 Manifold construction and security <br /> enclosure installation was performed between December 12 and 20, 2001 <br /> The IC engine was delivered and started-up on December 21, 2001 A 500 <br /> gallon propane tank, to replace the smaller temporary tanks, was installed <br /> and filled on January 17, 2002 <br /> 5 -2 System Start-un <br /> The system star ted up on December 21, 2001 and was allowed to operate <br /> for a 6-hour period of time During that time, the system operated at <br /> approximately 1800 rpm, infected approximately 35 cfm of air into the 7 <br /> AS wells, and removed approximately 50 cfm of subsurface air from the 7 <br /> VE wells No make-up/dilution air was required to maintain the IC <br /> engine's operation The System began continuous operation on Januaty 2 , <br /> 2002 <br /> • <br /> Frank's One Stop ASNE Remediation System Installation Report — February 2002 <br /> -6- <br />