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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.

ISCO - Provect-OX

Duncan Oil ISCO Program

Brent Spence Site, Kentucky/Ohio borderJuly-August 2025

Project Overview

IET executed a comprehensive Provect-OX chemical oxidation program at the Duncan Oil Brent Spence Site for Trihydro Corporation. The six-day injection event deployed 14,100 lbs of Provect-OX through 948 linear feet of drilling with complete hole abandonment, demonstrating our expertise in petroleum hydrocarbon ISCO treatment.

Treatment Details

Provect-OX Reagent

14,100 lbs of chemical oxidant

Drilling Depth

948 linear feet with complete hole abandonment

Tooling Allowance

$9/ft for specialized drilling equipment

Project Duration

6-day injection with full crew support

Project Details

• Client: Trihydro Corporation (Emily Pierson)
• Site: Duncan Oil, Brent Spence Site
• Completion Date: July 28 - August 2, 2025
• Technology: Provect-OX Chemical Oxidation
• Total Oxidant: 14,100 lbs
• Total Drilling: 948 linear feet
• Project Number: DUNCA-025-0001
• PO Number: 20250444