In an untreated composite of arsenic-impacted soil, the average soil concentration result was 3,720 mg/kg; the untreated, high-arsenic-impacted sample was 6,330 mg/kg. The average sample resulted in leaching of 18.9 mg/L in TCLP prior to treatment. A dosage rate of 1% wt./wt. EnviroBlend® HXD reduced arsenic leachability to 0.69 mg/L. The highly impacted area, untreated sample leached at 50.6 mg/L in TCLP testing. Dosage of 2% wt./wt. met TCLP criteria, and further dosage dropped the concentration of leachable arsenic.
These case studies are examples of the extensive work EnviroBlend has completed across the United States. For more information on our project experience please contact us.