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k`■ KLEINFELDER ID split spoon sampler using three, clean 6-inch long brass tubes. The soils obtained will be logged for lithology to verify desirable sparge point locations. 4.2 PILOT TEST EQUIPMENT The pilot test will comprise three primary pieces of equipment, the SVE system using organic carbon vapor treatment (a 55-gallon container), the air sparging compressor, and the ozone generator. The vapor extraction system will comprise a portable SVE unit capable of 100 scfm piped to a 55-gallon container of organic carbon for effluent treatment. The air sparging will be performed with an oiless 50-cfm air compressor. The compressor will be regulated down to provide 8-10 scfm to each of the sparge points. The ozone sparging will be performed with a 20 gram/hour (1.0 pound/day) ozone generator with a flow of 3-5 scfm to each of the sparge points (see Appendix B). To reach the necessary 50-psi static pressure at the deep sparge point, the pressure of the ozone generator may be supplemented with an auxiliary pump. In addition to the remediation equipment, several pieces of monitoring equipment will be utilized during the pilot test described as follows (cut sheets for some of the listed equipment is provided in Appendix B): Photo-ionization Detector (PID) The PID measures chemical constituents in soil vapor samples with a specific electron potential range; a 10.6 electron Volt (eV) lamp will be used. A standard PID will detect most VOCs, including TPH and DCA. Thermal Anemometer A thermal anemometer consists of a probe with an exposed hot wire that is inserted in the center of the pipe where flow is to be measured. As the air passes by the wire, the wire is cooled. The cooling is equated to an air velocity, which reads out on the instrument. The velocity is then multiplied by the pipe area and a 0.8 correction factor to average the velocity over the area of the pipe (the center is representative of the maximum velocity in the pipe) to get the total flow in the pipe. Magnahelic Gauges Magnahelic vacuum gauges will be used to measure pressure changes at monitoring wells to indicate the interception of sparge air. Magnahelic gauges are capable of measuring very low pressure changes. Three Magnahelics will be used to complete the monitoring with ranges from 0-0.1 in we, 0-1.0 in we and 0-5.0 in wc. Photometric Ozone Test Kit This testing kit will be used to measure ozone dissolved in groundwater. The test kit is capable of detecting ozone concentrations from 0 to 2 ppm in water. Photometric Ozone Monitor This instrument will be used to quantitatively measure gaseous ozone at the site, specifically at the monitoring well openings to the atmosphere. The meter can detect ozone as low as 3 ppb, can log readings versus time, and comes with an internal sampling/purging pump. ORP/DO/pH/Conductivity/Salinity/Temperature Meter This is a submersible multi-parameter pocket instrument is designed to monitor oxidation/reduction potential, dissolved oxygen, 12280/2002R476 Page 12 of 26 Copyright 2002 Kleinfelder,Inc. May 17,2002