Turnpike Authority On-Call Environmental Services MPE recovery with air sparging increased 92% from an average of 130 lbs of equivalent hydrocarbons per event to over 250 lbs/event. Handex operated as a Prime Contractor for a northeast turnpike authority. Working under two contracts with this turnpike authority, we performed soil and groundwater Remedial Investigations at seven sites between 2010 and 2014, in addition to other site remediation activities. Services furnished in completing the RIs included: soil and groundwater sampling, drilling and installing monitoring wells, performing receptor evaluations, collecting potable and surface water samples and assessing risks to receptors. We completed Remedial Investigations (RI) of soil and groundwater and submitted Remedial Investigation R

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