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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.

W.P. Ballad EZVI Excavation

Raleigh, NC

January 2009

EZVI Excavation

Large-Scale EZVI Application

ATC Associates contracted IET for EZVI (Emulsified Zero-Valent Iron) application to an active excavation at the former W.P. Ballad facility. The project required specialized application techniques, material handling, and comprehensive health & safety protocols.

3,000 gallons

EZVI Applied to Excavation

Program Components

EZVI Material (3,000 gallons)Primary Treatment

On-Site Duration5 Days

Administrative CostsAll planning, reporting included

Material HandlingComplete logistics managed

Health & Safety PlanComprehensive HASP

Mobilization/DemobilizationCrew & equipment transport

Per DiemField crew expenses

Project Information

Client

ATC Associates Inc., Raleigh, NC

PO Number

4525009419

Facility

Former W.P. Ballad Facility

Total Investment

$132,000

Ship Date

January 16, 2009

Scope

Turnkey lump sum contract