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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.

Syracuse Two-Area ISCO

Syracuse, NY

February 2009

Phased Program

Phased Payment ISCO Program

DELTA Consultants contracted IET for two-area persulfate/ZVI/H₂O₂ oxidation with six-payment structure. This was the second of six payments, representing a portion of the total estimated program scope.

$48,253

Payment #2

$30,000

Balance on Contract

Treatment Areas

Area A (32 injections, 4,850 ft²)

• H₂O₂ (2.5%): 30 gallons per injection

• Sodium Persulfate: 55 lbs per injection

• ZVI powder: 20 lbs per injection

Area B (47 injections, 5,300 ft²)

• H₂O₂ (5%): 75 gallons per injection

• Sodium Persulfate: 220 lbs per injection

• ZVI powder: 57 lbs per injection

Project Details

Client

DELTA Consultants, Inc., Syracuse, NY

Attention

Mark Schoemacher

PO Number

0512027P

Payment Structure

Second of six payments

Ship Date

February 20, 2009

Total Coverage

10,150 ft² (Areas A + B)