With nine years of data Daramend® addressed long-term mitigation of vapor pathway concerns over exposed areas containing concentrations of dissolved VOCs.
1,2-DCA, cis-1,2-DCE, VC, trichloroethene (TCE), and methylene chloride (DCM) and vinyl chloride (VC)
LFR Inc., Remedial Engineer and Contractor
Soil and groundwater in three main areas were affected by numerous VOCs. Daramend® reagent was blended into the uncontaminated sand above that water table at a rate of 0.8% by mass and was used to backfill the excavated source areas.
The nine year monitoring program indicates that concentrations of all the monitored chlorinated compounds were substaintially reduced. The combination of excavation, on-site treatment, and in situ treatment provided a novel, and cost effective approach for this site.
With a total treatment time of 3 months, the application of Daramend reagent reduced concentrations of PCE and TCE below the remedial standards at this site in the northwest USA.
Daramend® was applied first to a two-acre pilot project, and then to an additional 32 acres. The treatment successfully destroyed the concentrations of organochlorinated contaminants on time and on budget.
Daramend® reagent was the selected technology at a site for the treatment of 350 tons of soil impacted by phenoxy-acid herbicides (2,4-D, and 2,4,5-T), and other chlorinated pesticides (DDT, DDD, and DDE).
A 2,600-ton in situ pilot was conducted at a site in Florida using Daramend® Reagent achieving remedial goals within 3 weeks.
This project was designed to validate Daramend® applications on chlorinated pesticide impacted soil in Ontario, Canada.
