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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.

Westwego Louisiana EZVI Multi-Level Injection

Westwego, LA

July 2006

$47,550

Project Overview

EZVI (Emulsified Zero-Valent Iron) injection program in Westwego, Louisiana. This project featured multi-depth injection strategies with varying EZVI concentrations, including specialized 106-point grouting operation overseen by a licensed Louisiana driller.

Joint Mobilization: Shared mobilization costs with concurrent Beaumont, TX project for cost efficiency

Injection Configuration

Shallow Injection - 64 Points

• Depth: 4-6 feet bgs
• EZVI volume: 5 gallons per point
• Total: 320 gallons EZVI

Multi-Level Injection - 25 Points

• Four depth intervals: 4-6', 7-9', 10-12', 13-15' bgs
• EZVI volume: 15 gallons per interval (50 gal total/point)
• Total: 1,250 gallons EZVI

Three-Level Injection - 16 Points

• Three depth intervals: 7-9', 10-12', 13-15' bgs
• EZVI volume: 15 gallons per interval (45 gal total/point)
• Total: 720 gallons EZVI

Louisiana Regulatory Compliance

106 grouting points completed per Louisiana regulations under licensed driller supervision. Rental of GS-100 grout machine with all grouting materials provided.

Total EZVI Injected

2,290 Gallons

Emulsified Zero-Valent Iron

Across 105 injection borings with 106 grouted points

Project Details

Location

Westwego, Louisiana

Completion Date

July 2006

Technology

EZVI (Emulsified Zero-Valent Iron)

Special Requirements

Waiver of Subrogation, LA Licensed Driller

Material Handling

Client-supplied EZVI in totes

Grouting Points

106 points per LA regulations