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Final Remediation Plan Page 13 Ranch Market 23569 South Santa Fe Road Riverbank CA February 28 2001 Ozone Infection An ozone generator with a compressor rated to deliver 6 scfm at 10 psi The system will be equipped with a solenoid and manifold that will allow Infection of ozone Into each point at 6 cfm A total of 12 ozone injection points will be installed as shown on Figure 11 Details related to the ozone sparge system are included in Appendix C 5.5 Remedial Approach Design Details 5.5.1 Treatment Compound and Extraction Piping The treatment compound will have a concrete slab, be 15 feet wide and 20 feet long, and be surrounded with an 8-foot tall chain--link fence with sound blankets The location of compound, proposed SVE and ozone wells, and lateral piping layout are presented in Figure 11 Individual extraction lines, consisting of 2-inch diameter schedule-40 PVC will be run to each SVE wells The lines will be plumbed into a 10-well manifold constructed of schedule 80 PVC to allow control and measurement of the extraction of soil vapor from each SVE well All extracted vapor from the manifold will be plumbed to the catalytic oxidizer using a 4-inch diameter schedule 80 PVC line All lines will be equipped with PVC ball valves to control air flow, lab cock valves to facilitate collection of air samples, and vacuum gauges to monitor • applied vacuum Individual 3/8-inch diameter ozone infection tubing will be run from each well to a twelve- line manifold in the compound The manifold will be plumbed to the 6-point infection solenoid within the KVA C-Sparger Unit in such a way to allow rotation of the infection lines between the twelve wells The injection tubing will be double contained in 7/8-inch diameter tubing 5.5.2 SVE and Ozone Well Installation A total of 4 new SVE wells will be drilled to depth of 30 feet bgs and completed with 2-inch diameter PVC pipe Each well will be plumbed below grade to the extraction lines, completed with a threaded PVC cap to allow access to the wells, and protected with a water tight traffic rated well box set flush with grade The 12 new ozone infection points will be dnlled to a depth of 38 feet bgs and installed at the location shown on Figure 11 The well completion details of the existing and proposed SVE and ozone infection wells are shown on Table 9 Details related to the ozone sparge system and well completion schematic are included in Appendix D i File FRP-report doc SECOR International Incorporated