IET's Certifications, Qualifications & Industry Credentials
14 US patents, exclusive technology licenses, state drilling certifications in 40+ states, and a 28-year project track record. Here's why the most respected environmental consulting firms trust IET to implement their remediation programs.
Our Qualifications in Detail
IET's credentials span intellectual property, professional licensing, safety compliance, and documented field results.
14 US Patents in Environmental Remediation
IET holds 14 US patents covering ferric iron-activated persulfate (ISCO), encapsulated hydrogen donor substrates (ERD), methane inhibition in bioremediation programs, in-situ delivery systems, and geochemical stabilization processes. These patents represent real deployed technology — not laboratory concepts — and translate directly to better field performance.
- US-9427786-B2: Ferric iron-activated persulfate for in-situ chemical oxidation
- US-9126244-B2: Encapsulated slow-release electron donor substrates
- US-9221699-B2: Methane inhibition in bioremediation programs
- Multiple additional patents in delivery systems and remedial chemistries
Exclusive Technology Licenses
Beyond IET's own patents, IET holds exclusive North American licenses for two key external technologies, giving IET's clients access to innovations unavailable from other contractors.
- ISGS (In-Situ Geochemical Stabilization) — Exclusive North American license from Evonik Corporation for modified permanganate-based NAPL source zone treatment
- EZVI (Emulsified Zero Valent Iron) — Licensed from NASA for DNAPL source zone treatment using oil-encapsulated nano-ZVI
- Provect-CH4 and Provect-OX product lines — Manufactured and distributed through Provectus Environmental Products
State Drilling Licenses & Permits
IET's drillers and operations managers hold active state drilling licenses and certifications across the 40+ states where IET operates. All drilling work is performed by licensed personnel in compliance with state-specific well construction codes and UIC regulations.
- Pennsylvania, Ohio, North Carolina, South Carolina, Texas, Florida licensed drillers
- Monitor Well Driller licenses (e.g., TX License 58164M)
- UIC Class V well construction permit compliance nationwide
- OSHA 40-hour HAZWOPER certification for all field personnel
Professional Certifications & Credentials
IET's leadership and technical staff hold advanced academic degrees and professional certifications that reflect the depth of expertise behind every project design and implementation.
- Michael Scalzi, President — MS Microbiology, SUNY; 35+ years in-situ remediation
- Wade Meese, VP — BS Geology, Ohio State University; multiple patents in remedial chemistry
- Denise Pollock, Controller — SHRM Certified Professional (SHRM-CP)
- Field staff — OSHA 40-hour HAZWOPER trained and annually refreshed
- Multiple personnel with 20–30+ years of direct remediation and drilling experience
Safety & Compliance Record
IET maintains a strong safety culture across all regional offices and field operations. Field personnel are trained and certified in OSHA HAZWOPER, first aid, and site-specific health and safety protocols before every mobilization.
- OSHA 40-hour HAZWOPER certification — all field personnel
- Annual 8-hour HAZWOPER refresher training
- Site-specific Health & Safety Plans (HASPs) for every project
- Strong EMR (Experience Modification Rate) supporting client insurance requirements
- Company-wide safety meetings and incident reporting program
28 Years & 3,500+ Sites Remediated
IET's most compelling qualification is its track record. Since 1998, IET has completed more than 3,500 in-situ remediation design-build-implementations — generating an unmatched library of case studies, performance data, and client references across every contaminant type, geology, and site use category.
- 3,500+ sites remediated since 1998, within more than 5,000 total sites completed
- Projects in 40+ US states, Puerto Rico, and Canada
- Clients include major environmental consulting firms (ARCADIS, Ramboll, WSP, Terracon, SCS)
- Hundreds of sites achieved regulatory closure (NFA status)
- 50+ technical publications and conference presentations
Insurance Coverage and Limits
Carried limits as stated in IET's 2026 Statement of Qualifications. Certificates of insurance naming your organization as additional insured are issued at award. Note that pollution liability is carried separately from general liability, because general liability policies typically exclude the pollutant release a remediation project exists to manage.
| Coverage | Limit |
|---|---|
| General liability (within pollution GL package) | $1M per occurrence / $2M aggregate |
| Contractors pollution liability | $1M per occurrence / $2M aggregate |
| Employer's liability | $1M per employee / $2M aggregate |
| Automobile liability | $1M combined single limit |
| Umbrella / excess | $5M per occurrence / $5M aggregate |
| Workers' compensation | Statutory; employer's liability $1M / $1M / $1M — covered in PA, NC, FL, SC, TX, GA and NY |
Drilling Capability and Depth Limits
What IET's rigs and tooling can actually reach, by method. These are the figures to compare against a borehole schedule before assuming a scope is out of range.
| Method | Capability | Maximum depth |
|---|---|---|
| Hollow-stem auger with split-spoon sampling | Up to 18" outside diameter | 200 ft |
| Soil coring, 3" and 4" | Continuous core | 200 ft |
| Mud rotary | Up to 12" outside diameter | 2,000 ft |
| Air rotary | Hard rock and deep overburden | 1,000 ft |
| "Punch" soil coring | Continuous core | 1,000 ft |
Equipment Fleet
Owning the rigs and the injection systems is what keeps schedule and reagent compatibility under IET's control rather than a subcontractor's.
Representative Projects with Measured Results
Four projects from the 2026 SOQ, quoted with their actual quantities and outcomes rather than adjectives.
| Site | Contaminant | Approach and quantity | Measured result |
|---|---|---|---|
| Cleveland Flats, Cleveland, OH | TCE, cis-1,2-DCE, vinyl chloride and hexavalent chromium | 70 in-situ injections of compressed nitrogen with EHC-M, calcium propionate and an oxygen scavenger | TCE reduced 98 percent over 8 months; site closed and redevelopment began shortly after |
| Cabot Koppers Superfund Site, Gainesville, FL | Creosote DNAPL | ISGS injection — approximately 200,000 gallons of reagent across 267 injection points | Historic low DNAPL concentrations recorded after the injection event |
| Former gasoline terminal, Erie, PA | BTEX including cumene | Sodium persulfate and hydrogen peroxide activated by zero-valent iron across 70 injection points | Below statewide health standards 6 months after injection, with no free product present |
| Fanwood, NJ | DNAPL, chlorinated solvents, PCBs, coal tar, creosote and PAHs | In-situ geochemical stabilization (ISGS) as the exclusive licensee | Source-zone stabilization of a mixed DNAPL; technology supported by EPA Regions 4 and 8 |
Project scale ranges from a 136,000-cubic-yard in-situ soil remediation in New Jersey to a 2,000-cubic-yard injection program at a strip-mall dry cleaner in Tennessee.
Download IET's Statement of Qualifications
IET's 2026 SOQ provides a comprehensive overview of company history, personnel, technology portfolio, equipment fleet, and project experience — suitable for client qualification packages and vendor prequalification submittals.
📄 Download 2026 Statement of Qualifications (PDF)Trust the Credentials. Experience the Results.
3,500+ projects. 14 patents. 28+ years. Talk to IET's engineers about your site today.