Provect OX ISCO Injection — Welded Tubes, Orwell OH

Project Overview

IET delivered a comprehensive Provect OX in-situ chemical oxidation (ISCO) program at the Welded Tubes facility in Orwell, Ohio for HzW Environmental Consultants. The program addressed soil and groundwater contamination across three treatment areas (Areas 1, 2, and 3) over a 9-day field program from May 11–21, 2026.

A total of 26,880 pounds of Provect OX was delivered using IET's direct push probe rig and proprietary injection trailer system. Provect OX is a self-activating chemical oxidant combining hydrogen peroxide and calcium peroxide that generates sustained dissolved oxygen and free radical species — making it effective for petroleum hydrocarbons and co-contaminant treatment in industrial settings.

The turnkey program included full IET supervision, injection equipment, transportation logistics, forklift services, and complete field documentation for regulatory reporting.

Scope of Work

• 26,880 lbs Provect OX delivered and injected across 3 treatment areas
• 9 operational days with IET probe rig and injection trailer
• Full IET field supervision for all 9 treatment days
• Administration including hazmat shipping, forklift management, and daily reports
• 3-man crew with full per diem and mob/demob
• Work period: May 11–21, 2026

Project Details

Technical Approach & Provect OX Chemistry

Provect OX is a self-activating, sustained-release chemical oxidant that combines hydrogen peroxide and calcium peroxide in a proprietary formulation. Unlike conventional ISCO reagents that require external activation (e.g., iron chelate, heat, or base activation), Provect OX generates its own activation chemistry through controlled calcium peroxide decomposition — producing dissolved oxygen and free radical species (hydroxyl radicals, superoxide, and perhydroxyl radicals) over an extended period. This sustained-release mechanism provides continuous oxidative treatment for weeks to months following a single injection event, reducing the need for multiple mobilizations.

For the Welded Tubes facility program, IET delivered 26,880 pounds of Provect OX across three treatment areas (Areas 1, 2, and 3) using a direct push probe rig and proprietary injection trailer system. The probe rig advanced injection rods to the target treatment depth, and the injection trailer mixed and delivered the Provect OX slurry under controlled pressure to achieve the designed radius of influence (ROI) around each injection point. The 9-day field program allowed sequential treatment of all three areas with full IET field supervision throughout.

Provect OX is particularly effective at manufacturing facilities like Welded Tubes because it addresses petroleum hydrocarbons and co-contaminants (BTEX, PAHs, SVOCs) in active industrial settings where minimal operational disruption is critical. The turnkey program included full IET supervision, injection equipment, transportation logistics, forklift services, hazmat shipping, and complete field documentation for regulatory reporting — providing the consulting engineer (HzW Environmental) with a single-vendor solution from design through implementation.

Industrial Site Context & Treatment Design

Orwell, Ohio is located in Ashtabula County in northeastern Ohio, within the glaciated Allegheny Plateau physiographic province. The shallow geology consists of glacial till deposits — predominantly clay, silt, sand, and gravel mixtures — overlying Devonian-age shale and sandstone bedrock. The Welded Tubes manufacturing facility sits on these glacial deposits, where soil contamination from industrial operations (steel tube manufacturing) has impacted the vadose zone and shallow groundwater.

The three treatment areas (Areas 1, 2, and 3) likely represent distinct contaminant source zones or plume segments across the facility footprint, each requiring tailored reagent dosing based on contaminant concentration, soil mass, and target treatment depth. The 26,880 lbs of Provect OX distributed across three areas over 9 field days reflects a design dosage of approximately 8,960 lbs per treatment area — a substantial application rate appropriate for source zone treatment at an active industrial facility. The program's 9-day duration allowed IET to complete treatment without interrupting facility operations, a key advantage of in-situ remediation over excavation-based approaches at active manufacturing sites.