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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.

Geotechnical Drilling

Cell Tower Geotechnical Investigation

Joshua, TexasMay 2025

Project Overview

IET performed comprehensive geotechnical soil boring services for Delta Oaks Group at a cell tower site in Joshua, TX. The project included Standard Penetration Testing (SPT) throughout all soil types to evaluate foundation conditions.

Our team advanced four soil borings to 20 feet with detailed SPT testing intervals, including enhanced sampling in the critical top 10 feet and provisions for rock coring if refusal conditions were encountered.

Testing Protocol

SPT Testing Strategy

• Four (4) samples in the top 10 feet for critical near-surface data
• Testing every 5 feet thereafter to termination depth or refusal
• Up to 5 feet of rock coring capability if auger refusal before 20 feet

Site Support Services

• Hand clearing and site cleanup
• Comprehensive photographic documentation
• Site sketch preparation

Project Specifications

• Client: Delta Oaks Group
• Site: Cell Tower, Joshua, TX
• Completion Date: May 8, 2025
• Number of Borings: Four (4) to 20 feet
• Total Drilling Depth: 80 linear feet
• Testing Method: Standard Penetration Testing (SPT)
• Project Number: GEO25-25142-03