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EQUIPMENT REQU'P-EMENTS <br /> technology requires the use of certain equipment to monitor the airflow <br /> Application of the Infusion t gY q <br /> rate being supplied to the groundwater,and regulate om the <br /> Technologure at y in Canada At therinfus on <br /> iSOC probe and control petelshouldlbe used to measure oxygen, this type of DO meter is an ' <br /> wells, a high range DO meter Z-l1e 2-stage, low flow gas regulator <br /> OxyGuard Handy Alpha{Polnt'Four Systems,Equipment <br /> of Company <br /> (GPT 70805404M) and '/,-inch hose <br /> is a custom regulator made by Victor <br /> gpand tankis mp supplied by Airgas The polyurethane tubing <br /> nipple(10572G) The compressed <br /> (1/4"outer diameter) is produced by SMC (TU0604�-C-100) The gas cylinder shed is made by <br /> MECO (CSC2V-AL) These items are available at Environmental Bio-Systems,Inc <br /> (www EBSinfo com) _ - - <br /> Scope of Work <br /> Work to be performed for the selected site involves the following N <br /> • Installation of infusion probes in newly installed infusion wells or existing wells ' <br /> • Trenching from the infusion wells to a remediation skied that will be installed In a convenient ' <br /> location at the site,-the`shed will be large enough to house the compressed air cyhnder(s)(oxygen <br /> source), iSOC control panel and miscellaneous supplies <br /> 1/4-inch tubin from the probe at each infusion well location to the shed <br /> • Connection,of flexible g <br /> • Connection of the flexible '/4-inch tubing from the infusion wells to the ISOC control panel and •1 <br /> oxygen cylinder in the shed <br /> of ox en infusion;groundwater-DO concentrations in the infusion wells will <br /> Following startup yg �J! <br /> be moiutored once every other day-until-relatively constant DO_are_reached in the Infusion Wills, - <br /> DO monitonng will then be performed monthly during canister change out and during q y r <br /> groundwater sampling events <br /> • Sampling events will be conducted on a quarterly basis <br /> is amenable to remediation by natural o the <br /> -attenuation, if the <br /> • After concentrations decline to leve <br /> feasibility of natural attenuation as a remedial alternative needs to be evaluated,in addition t <br /> above target analytes,the baseline sampling and compliance monitoring events should also include <br /> sampling of geochemical indicator parameters listed below In that case, an addendum work plan <br /> will be developed proposing wells and parameters tob sampled f cost an analyzed and outlining the <br /> approach to be used for data evaluation and estimation <br /> • ure <br /> Data evaluation will consist of <br /> (1) Establishing concentration trends of target analytes,DO, and microbial activity, <br /> (2) Developing correlations between key variables such as DO levels and hydrocarbons an <br /> degradation by-products,if necessary, <br /> (3) Estimating degradation rates of these compounds, and <br /> (4)Estimating groundwater cleanup time hactivity <br /> co peted after all data ll be ongoing as • <br /> data are collected in the field,but a comprehensive evaluation will be <br /> have been collected and compiled <br />