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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 - Gas Station

Former Gas Station Jefferson Street

Indianapolis, Indiana (Jefferson Street)July 2023

Project Overview

IET completed a three-day Provect-OX ISCO program for Patriot Engineering at a former gas station on Jefferson Street in Indianapolis. The rapid deployment project injected 10,800 lbs of Provect-OX oxidant with a full three-person crew, demonstrating efficient treatment of petroleum-impacted soil and groundwater at former retail petroleum sites.

Treatment Summary

Provect-OX Deployment

10,800 lbs chemical oxidant

Injection Crew

3-person crew with IET injection trailer

Probe Services

3 days of direct push probe operations

Complete Package

Hazmat shipping, forklift, and implementation report

Project Details

• Client: Patriot Engineering
• Site: Former Gas Station, Jefferson St, Indianapolis, IN
• Completion Date: July 2023
• Technology: Provect-OX ISCO
• Total Oxidant: 10,800 lbs
• Project Duration: 3 days
• Total Project Value: $66,317