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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.

Large-Scale Persulfate Supply Program

Mount Laurel, NJ

Aug-Oct 2017

Materials Supply

Phased Persulfate Delivery

An environmental consulting firm contracted IET for a large-scale sodium persulfate supply program delivered in two phases. This materials-only supply supported a major ISCO remediation program requiring very large quantities of chemical oxidant per shipment.

928,516 lbs

Total Persulfate Supplied

2 Phases

Phased Delivery

Phase 1 — Initial Delivery (August 2017)

• 307,806 lbs sodium persulfate

• Initial shipment (~33% of total program)

Phase 2 — Balance Delivery (October 2017)

• 620,710 lbs sodium persulfate

• Remaining shipment (~67% of total program)

Project Information

Client

Environmental Consulting Firm

Location

Mount Laurel, New Jersey

Delivery Period

August – October 2017

Technology

Sodium persulfate in-situ chemical oxidation

Scope

Materials-only supply (injection operations performed separately)

Total Quantity

928,516 lbs in two phased shipments