ISOTEC Case Study No. 83 ISCO TREATMENT PROGRAM: MGP RELATED IMPACTS VIA MODIFIED FENTON’S REAGENT (MFR) AND BASE ACTIVATED SODIUM PERSULFATE (BASP) Former Manufacturing Gas Plant Upstate, New York INTRODUCTION ISOTEC was retained to implement an In-Situ Chemical Oxidation (ISCO) treatment program within the downgradient residual plume area of a former Manufactured Gas Plant (MGP) site utilizing a combination of modified Fenton’s reagent (MFR) and base activated sodium persulfate (BASP) to address impacted soils and groundwater. The oxidants and dosages were selected based on bench scale testing that ISOTEC collaborated on. Target contaminants of concern (COCs) included volatile organic contaminants (VOCs), semi-

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