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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.

Our Services

Comprehensive environmental remediation solutions with proven results

Remediation Strategies

In-situ remediation is our specialty. We design and implement injection programs tailored to your site

Direct Push Injections

IET delivers patented injection techniques that are field proven and results driven. Our injection tooling is designed in-house and has been field tested by over 20 years of injection experience.

No waste streams

Flexible design

Accelerated reduction of target compound concentrations

Suitable for various formations: sand, silt, clay, glacial till

Target Compound Elimination

Specialized treatment approaches for various contaminant classes

Chlorinated Solvents

Chlorinated ethenes and ethanes treated using abiotic and biotic reductive dechlorination or chemical oxidation

Common Compounds:

TCE, PCE, DCE, Vinyl Chloride

Related Case Studies:

Petroleum Hydrocarbons

BTEX compounds addressed using chemical oxidation technologies or biological mineralization

Common Compounds:

Benzene, Toluene, Ethylbenzene, Xylenes

Related Case Studies:

Heavy Metals

In-situ geochemical stabilization for metals contamination

Common Compounds:

Chromium, Lead, Arsenic, Mercury

Related Case Studies:

Mixed Contamination

Simultaneous treatment of multiple contaminant classes using synergistic technologies

Common Compounds:

Combined Organics & Metals

Related Case Studies:

Environmental & Geotechnical Services

Comprehensive drilling, sampling, and well services with specialized equipment

Drilling Methods

Air Rotary

Auger Drilling

Direct Push

Drilling from the IET Barges

Rock Coring

Wash Rotary

Well Services

1in, 2in, 4in Monitor Well Installation

Piezometer Installation

Well Abandonment

Well Development & Sampling

Sampling & Testing

California Sampler

CME Continuous Sampler Sampling

Field Logging

Soil Vapor Installation

Split Spoon/Shelby Tube Sampling

Texas Cone Penetration (TCP) Testing

Injection Services

In Situ Chemical Injection

Equipment

1 - 1976 CME 45C

1 - 2003 AMS 9630 P (Portable Rig)

1 - 2004 CME 750-X High Torque ATV Rig

1 - 2004 Geoprobe 6610DT

1 - 2005 Geoprobe 6610 Truck Mount

1 - 2005 Vactron 1000 Trailer

1 - 2006 AMS 9500 VTR

1 - 2006 AMS 9635 VTR

1 - 2007 Morooka MST-800

1 - 2007 Schramm T-450T Truck Rig

1 - 2008 Geoprobe 8040DT

1 - 2011 CME 550-X High Torque ATV Rig

1 - 2014 AMS 9510 VTR

1 - 2014 Geoprobe 7822DT

1 - 2015 Mobile B-57 Track Rig

1 - 2016 AMS 9520 VTR

1 - 2017 AMS 9580 VTR

1 - Peterbilt Road Tractor

1 – 2025 Geoprobe 7822DT

1 – CME 55

1 – CME 850 Track Rig

2 - 2011 AMS 9500 VTR

3 - CME 75s - ATVs and Truck Mounted

3 - International Tractor Trailers

5 - Decontamination Trailers

Geographies Served

Alabama

Delaware

Florida

Georgia

Maryland

New Jersey

New Mexico

New York

North Carolina

Ohio

Oklahoma

Pennsylvania

South Carolina

Tennessee

Texas

Virginia

West Virginia