How to Select an In Situ Remediation Contractor
Choosing the right in situ remediation contractor is the single most important decision in your cleanup project. The wrong choice means cost overruns, schedule delays, and treatment failures. This guide covers the six criteria that separate proven contractors from reagent suppliers.

The 6 Key Selection Criteria
Evaluate every prospective contractor against these six benchmarks before signing a contract.
Patented Technology & Proven Results
Look for a contractor with proprietary, field-tested technologies — not just a reagent distributor. IET holds multiple patents for activated persulfate, EZVI, and bioremediation delivery systems, validated across 3,500+ projects since 1998.
Nationwide Coverage & Regional Offices
A contractor with offices across the country can mobilize quickly and understands local geology and regulatory frameworks. IET operates from six regional offices: Pennsylvania (HQ), Ohio, Texas, South Carolina, North Carolina, and Florida.
In-House Drilling & Injection Equipment
Contractors who own their drilling rigs and injection tooling control quality, schedule, and cost. IET maintains its own fleet of Geoprobe, CME, AMS, and Schramm rigs — no subcontractor delays or markups.
Experienced Field Personnel
Ask about the team that will actually be on your site. IET employs full-time field geologists, injection specialists, and drill operators — not临时 day labor — with an average of 15+ years of remediation experience.
Turn-Key Proposal & Design Capability
The right contractor provides design-level proposals with reagent quantities, injection grids, performance monitoring, and cost estimates — not just a quote for materials. IET delivers turn-key proposals backed by 28+ years of design experience.
Insurance, Bonding & Safety Record
Verify comprehensive general liability, pollution liability, and workers compensation coverage. IET carries robust insurance, maintains an EMR below 1.0, and has a 25+ year safety record across thousands of field projects.
Red Flags to Avoid
If a contractor exhibits any of these warning signs, proceed with caution.
No in-house drilling or injection equipment — relies entirely on subcontractors
Cannot provide references for similar geology or contaminant type
Offers only one technology (e.g., only persulfate) regardless of site conditions
No patented or proprietary treatment chemistry
Quotes materials only — no design, no field implementation, no monitoring
No regional office within mobilization distance of your site
Limited or no insurance coverage for environmental field work
No experience with your state's regulatory framework or cleanup standards
Why IET Passes Every Test
28+ years of in situ remediation experience since 1998
Multiple patented technologies (activated persulfate, EZVI, ISGS)
6 regional offices for nationwide mobilization
In-house fleet of Geoprobe, CME, AMS, and Schramm rigs
Full-time field geologists and injection specialists
Turn-key proposals with design-level detail
Comprehensive pollution liability insurance
3,500+ completed projects across 40+ states
Frequently Asked Questions
What is an in situ remediation contractor?
An in situ remediation contractor designs and implements treatment systems that destroy or stabilize soil and groundwater contamination in place — without excavation. Unlike reagent suppliers who only sell chemicals, a full-service contractor like IET provides the drilling equipment, injection tooling, field personnel, and design expertise to deliver treatment underground.
How do I choose the right in situ remediation contractor?
Evaluate six criteria: (1) patented, proven technology, (2) nationwide coverage with regional offices, (3) in-house drilling and injection equipment, (4) experienced full-time field personnel, (5) turn-key design and proposal capability, and (6) proper insurance, bonding, and safety record. Avoid contractors who only supply reagents without field implementation capability.
Why is in-house drilling equipment important for a remediation contractor?
Contractors who own their drilling rigs control project schedule, quality, and cost. Subcontractor-dependent contractors face scheduling delays, markup costs, and quality inconsistencies. IET owns and operates its own fleet of Geoprobe, CME, AMS, and Schramm drilling rigs for direct push, hollow stem auger, air rotary, and barge drilling.
What questions should I ask a remediation contractor before hiring them?
Ask: Do you have experience with my contaminant and geology? Do you own your drilling and injection equipment? Can you provide a turn-key design with reagent quantities and injection grid? What is your safety record and EMR? Do you carry pollution liability insurance? Can you provide references from similar projects? IET answers all of these with documented 25+ year experience.
How much does in situ remediation cost?
In situ remediation costs vary by site size, contaminant type, geology, and technology selected. ISCO typically ranges $50–$200 per cubic yard treated, bioremediation $30–$150, and ISCR $75–$250. IET provides free, no-obligation cost estimates through its AI Site Assessment Tool or by calling 888-721-8283.
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