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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.

Cleveland Supplemental ISCO

Cleveland, OH

June 2010

Supplemental Treatment

Follow-Up Oxidation Campaign

Environmental Management Specialists contracted IET for supplemental persulfate/peroxide oxidation targeting previously treated areas for enhanced contaminant destruction. This follow-up program utilized ZVI-activated persulfate with H₂O₂ enhancement.

Treatment Areas

Area #5

4,860 lbs Persulfate

398 gal H₂O₂

Area #8 (Largest)

10,953 lbs Persulfate

598 gal H₂O₂

Area #7

485 lbs Persulfate

33 gal H₂O₂

Area #12

970 lbs Persulfate

66 gal H₂O₂

Area #13

485 lbs Persulfate

33 gal H₂O₂

Project Details

Client

Environmental Management Firm

Location

Cleveland, Ohio

Total Persulfate

17,753 lbs across five areas

Duration

4 days injection trailer operations

Ship Date

June 4, 2010

Equipment

IET injection trailer, chemical mixing application