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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.

IET environmental remediation and drilling field operations

Environmental Remediation
& Drilling Contractors

In Situ Remediation Contractor — ISCO · ISCR · Bioremediation · Env. Drilling · Geotechnical Drilling · In Situ Soil Mixing · Remediation Design · Chlorinated Solvent Remediation · Petroleum Remediation

14 Patented Technologies · 3,500+ Projects Nationwide · Free Consultation

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Drilling Services

Environmental & Geotechnical Drilling

50+ specialized rigs for soil boring, monitoring wells, direct push, and barge drilling nationwide

Environmental Drilling

Professional drilling for environmental site assessment and remediation

Soil Boring & Sampling
Monitoring Well Installation
Direct Push Technology

Geotechnical Drilling

Comprehensive geotechnical investigation and subsurface exploration

Foundation Investigation
Soil Classification Testing
SPT & Rock Coring

Geo-probe Services

Advanced direct-push technology for rapid site characterization

Rapid Site Assessment
Groundwater Sampling
Soil Gas Surveys

Barge Drilling

Specialized marine drilling for waterway and offshore projects

Marine Geotechnical Drilling
Waterway Site Assessment
Bridge Foundation Studies

Remediation Services

In-Situ Remediation Services

ISCO, ISCR, bioremediation & NAPL treatment — expert injection programs for contaminated soil and groundwater

In Situ Chemical Oxidation

Advanced oxidation for rapid contaminant destruction

Petroleum Hydrocarbon Treatment
VOC & SVOC Remediation
Rapid Response Events

Enhanced Bioremediation

Biological treatment for sustainable contaminant degradation

Chlorinated Solvent Treatment
Electron Donor Injection
Mixed Biotic-Abiotic Technologies

Custom Remediation Design

Site-specific solutions for complex environmental challenges

Heavy Metal Remediation
Mixed Contamination
Feasibility Studies

NAPL Treatment

Specialized strategies for dense non-aqueous phase liquids

Creosote Sites
Coal Tar Sites
MGP Sites

In Situ Chemical Reduction

Reductive chemical treatment for halogenated contaminants

Chromium Reduction
Reductive Dechlorination
Uranium Stabilization

Environmental Remediation Case Studies

Featured Project: Chlorinated Solvent & Chromium Remediation

Case Study

Cleveland Development Project

The remediation site is located in Cleveland, Ohio. The site contained soil and groundwater impacted by trichloroethene (TCE), cis-1,2-dichloroethene, vinyl chloride, and hexavalent chromium. IET's in-situ injection program targeted these compounds through compressed nitrogen and a solution of EHC-M, calcium propionate, and an oxygen scavenger.

Project Gallery

Regional Project · Geoprobe Services

Versatile direct push deployment

Why IET

Why Choose IET as Your Remediation Contractor

20+ years of proven success — 3,000+ remediation and drilling projects completed nationwide

Experienced field technicians

Proven technology equipment

Managed by professionals

Economical solutions

Timely project completion

3,250+

Remediation Projects

5,000+

Drilling Projects

1998

Since

Ready to Start Your Remediation Project?

Contact IET's experts today for a free consultation on ISCO, ISCR, bioremediation, or drilling services for your contaminated site.

Environmental Remediation& Drilling Contractors

Environmental & Geotechnical Drilling

Environmental Drilling

Geotechnical Drilling

Geo-probe Services

Barge Drilling

In-Situ Remediation Services

In Situ Chemical Oxidation

Enhanced Bioremediation

Custom Remediation Design

NAPL Treatment

In Situ Chemical Reduction

Environmental Remediation Case Studies

Cleveland Development Project

Completed Remediation Projects

Industrial Site ISCO Treatment

Geoprobe Direct Push Drilling

Barge Drilling — Marine Site

Enhanced Bioremediation — Dry Cleaner

Persulfate Injection Program

In Situ Soil Mixing — MGP Site

CME Auger Drilling — Monitoring Wells

Direct Push Site Characterization

Track-Mounted Drilling — Limited Access

Barge-Mounted Geotechnical Drilling

Marine Foundation Investigation

Sediment Sampling — Waterway

Barge Drilling Crew in Action

Barge Platform — Bearing Capacity Study

Geoprobe 8040DT — Direct Push

Geoprobe Groundwater Sampling

Direct Push Soil Vapor Survey

Geoprobe 7822DT — Multi-Purpose