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December 2018 Newsletter

December 3, 2018

Due to past operations at a former solvent recovery facility, the soil and groundwater were contaminated with PFAS. PlumeStop, a cost-effective colloidal activated carbon technology, was applied in situ to rapidly adsorb the PFAS contaminants in the upgradient water onto the micron-scale activated carbon. After the initial application of PlumeStop, the PFAS concentrations have quickly … Read More >

November 2018 Newsletter

November 20, 2018

Due to past operations at the Solvents Recovery Service of New England, the soil and groundwater were contamnated with PFAS. PlumeStop, a cost-effective, in situ colloidal activated carbon technology was applied in a barrier trench application that allows groundwater to flow through a sheet pile wall that was constructed as part of a legacy pump … Read More >

October 2018 Newsletter

October 23, 2018

A former dry-cleaner in Sacramento released chlorinated solvents and petroleum compounds in groundwater. Electrical Resistance Heating (ERH) was selected to remove contaminant mass in the source area. During ERH, 3-D Microemulsion® was used for Enhanced Reductive Dechlorination in order to treat the distal plume. Fugro USA Land, Inc. and REGENESIS collaborated on the site design … Read More >

September 2018 Newsletter

October 6, 2018

An aerospace manufacturing facility required remediation for a deep and heavily impacted Chlorinated Volatile Organic Compound (cVoc) plume. The extensive depth and size of the plume contributed to the difficulty facing remediation efforts. After conducting pilot tests, Alta Environmental and REGENESIS concluded that Enhanced In Situ Bioremediation (EISB) technology was both cost-effective and feasible for … Read More >

August 2018 Newsletter

September 19, 2018

Subsurface contamination from chlorinated solvents posed a direct risk to the indoor air quality at a Renton, Washington property. Tetrachloroethylene (PCE) and carbon tetrachloride exceeded the Washington State Department of Ecology (DOE) risk screening level for indoor air quality. Environmental consultant, Maul Foster Alongi performed a cost analysis of different vapor mitigation and remediation options … Read More >

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