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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.

Chenoa Phase I Bioremediation

Chenoa, IL

August 2002

Multi-Component Bio

Three-Technology Bioremediation

Environmental Management Inc. contracted IET for Chenoa Phase I utilizing three complementary bioremediation technologies: BioSlurry with IET's LPD bacterial culture, oxygen release compounds, and calcium peroxide injections.

$118,858

Phase I Investment

Treatment Components

BioSlurry Injections (76 points @ 6-8' BGS)

• IET's LPD (Liquid Petroleum Degrader): 10 gallons per point

• BioSlurry with nutrients and H₂O₂: 125 gallons per point

• Pretreatment fracture for pathway development

$49,400

ORC Points (66 locations)

Slow-release oxygen source for sustained aerobic activity

$41,778

Calcium Peroxide (13 points @ 8-10' BGS)

• 10 lbs calcium peroxide per point

• 50 gallons slurry with pre/post fracture

$7,800

Infiltration Gallery Treatment

Supplemental plume management

$750

Project Team & Resources

Client

Environmental Management Inc., Springfield, IL

Microbiologist

136 hours @ $75/hr

Field Supervisor

120 hours @ $45/hr

Duration

11 days (4-person crew)

Per Diem & Expenses

$280/day for 11 days

Ship Date

August 26, 2002