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What is in-situ chemical oxidation (ISCO)?

In-situ chemical oxidation (ISCO) is an environmental remediation technique where chemical oxidants such as persulfate, permanganate, or hydrogen peroxide are injected into contaminated soil and groundwater to destroy organic contaminants like TCE, PCE, and petroleum hydrocarbons in place — without excavation.

What contaminants can IET remediate?

IET specializes in TCE remediation, chlorinated remediation, and comprehensive environmental treatment. We remediate chlorinated solvents (TCE/trichloroethylene, PCE/perchloroethylene, DCE, vinyl chloride), petroleum hydrocarbons (BTEX, gasoline, diesel, MTBE), heavy metals (chromium, lead), NAPL, DNAPL, PAHs, creosote, and mixed contamination using ISCO, ISCR, bioremediation, EZVI, and ISGS technologies.

How long does environmental remediation take?

Remediation timelines vary by technology and site conditions. ISCO can achieve significant contaminant reduction in weeks to months. Enhanced bioremediation typically requires 2–5 years of active treatment. IET's patented ferric iron-activated persulfate provides sustained treatment lasting over 2 years to prevent contaminant rebound.

What states does IET provide environmental drilling services?

IET provides environmental and geotechnical drilling services nationwide including Pennsylvania, Ohio, North Carolina, South Carolina, Texas, Florida, New Jersey, New York, Virginia, Georgia, Tennessee, Indiana, Illinois, and more. IET operates 50+ specialized rigs including CME, Geoprobe, AMS, and barge drilling equipment.

Enhanced Bioremediation

Eaton Facility Groundwater Treatment

Sanford, North CarolinaNovember 2025

Project Overview

IET executed a large-scale enhanced bioremediation program at the former Eaton manufacturing facility in Sanford, NC for AESI. This comprehensive project targeted both shallow and downgradient groundwater contamination using a multi-reagent approach combining Zero Valent Iron (ZVI), enhanced reductive dechlorination substrates, and specialized nutrients for aggressive biological treatment.

Treatment Approach

Provect-IR & ERD

17,568 lbs total of enhanced reductive substrates for biological treatment

Zero Valent Iron (ZVI)

7,390 lbs for enhanced reductive dechlorination

Specialized Nutrients

Vitamin B2 (52,260g), Red Yeast Rice (111,191g), Vitamin B12 (3,764g) for microbial enhancement

Chemical Additives

500 lbs each of sodium sulfite and nutrients for optimal microbial conditions

Project Details

• Client: AESI
• Site: Former Eaton Facility, Sanford, NC
• Completion Date: November 2025
• Technology: Enhanced Bioremediation with ZVI
• Total ZVI: 7,390 lbs
• Provect-IR: 12,500 lbs
• Provect-ERD: 5,068 lbs
• Project Value: $258,925
• Sales Representative: Wade Meese