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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.

Memphis Dual-Zone EZVI Program

Memphis, TN

August 2012

EZVI Technology

Two-Zone Treatment Strategy

ENSAFE Inc contracted IET for a comprehensive materials delivery supporting dual-zone remediation targeting both unsaturated soils (Area A) and groundwater/saturated zone contamination.

$643,696

Materials Investment (Labor to follow)

Treatment Zones

Unsaturated Soils - Area A

EZVI 17% Concentration5,121 gal

@ $35.00/gallon = $179,235.00

Groundwater & Saturated Soils

Primary Substrates

• EHC: 22,400 lbs
• Zero Valent Iron: 24,640 lbs
• Hydrolyzed Kelp: 4,928 lbs
• Calcium Propionate: 11,200 lbs

Vitamin Complex

• Vitamin B2: 46,825 units
• Vitamin B12: 6,744.80 grams
• Yeast Extract: 1,680 lbs
• Nutrients & Sulfite

Project Details

Client

ENSAFE Inc, Memphis, TN

Attention

Joan Liddel, Accounts Payable

Invoice Date

August 1, 2012

Start Date

September 9, 2012 (projected)

Materials invoiced prior to start date. Labor costs and injection costs invoiced separately on 9/12.