NDT Tank Inspection Services in New England

Non-destructive testing (NDT) tank inspection uses advanced ultrasonic technology to assess tank integrity without drilling, cutting, or compromising the tank structure. UT equipment measures wall thickness, detects corrosion, and identifies permeations invisible to visual inspection. It's necessary because tanks naturally corrode over time—especially in New England's harsh climate—and NDT provides quantifiable data to predict remaining service life, prevent catastrophic failures, and maintain EPA and state environmental compliance without taking tanks out of service for invasive testing.

Inspection frequency depends on tank age, stored product corrosivity, and regulatory requirements. API 653 recommends external inspections every five years and internal inspections every ten years for atmospheric storage tanks, though more frequent testing is prudent for tanks storing aggressive chemicals or operating in corrosive environments. Underground storage tanks (USTs) often require annual tightness testing. New England facilities should consider more frequent inspections due to accelerated corrosion from freeze-thaw cycles and coastal salt exposure. AmTech can establish a custom inspection schedule based on your specific tank service conditions.

Yes. AmTech's ultrasonic permeation detection identifies minute pinholes, hairline cracks, and micro-permeations that are completely invisible during visual inspection and may not yet be actively leaking. The technology works by measuring sound wave transmission through the tank wall—any void, crack, or thinning creates a distinct ultrasonic signature. This early detection is critical for preventing environmental releases, especially in double-wall underground storage tanks where interstitial monitoring may not catch primary wall failures until product has already breached the first barrier.

AmTech's inspection reports include a site-specific tank identification and product storage details, ultrasonic thickness measurements mapped across the tank shell and bottom with minimum/maximum/average readings, corrosion rate calculations and remaining service life projections, identification of critical areas requiring repair or monitoring, high-resolution digital images and UT scan data, API 653 compliance status assessment, and prioritized repair recommendations with estimated costs. Reports are formatted for submission to regulatory agencies and provide the technical documentation needed for capital planning and maintenance budgeting.

Inspection duration varies by tank size, configuration, and accessibility. A standard 10,000-gallon above-ground storage tank with good access typically requires 2-4 hours for a comprehensive ultrasonic thickness survey. Larger tanks, tanks with complex geometries, or underground tanks requiring excavation for access may require a full day or multiple days. AmTech schedules inspections to minimize facility disruption—many inspections can be performed while tanks remain in service, though some areas may require product drawdown for access. Emergency inspections can often be mobilized within 24-48 hours across New England.

AmTech performs NDT inspections on all tank materials and configurations including steel above-ground storage tanks (ASTs) for petroleum, chemicals, and water; underground storage tanks (USTs) including double-wall systems; fiberglass reinforced plastic (FRP) tanks; concrete tanks with or without linings; and composite tanks with mixed material construction. We inspect tanks storing potable water, wastewater, chemicals, fuels, oils, and industrial process fluids. Inspection protocols are customized based on tank material, stored product, operating conditions, and regulatory requirements specific to each facility.

Many NDT inspections can be performed on in-service tanks without complete drainage. External ultrasonic thickness testing requires access to the tank shell exterior but does not require the tank to be empty. Internal inspections and floor scans typically do require drainage, ventilation, and confined space entry protocols. For critical facilities that cannot afford extended downtime, AmTech can perform phased inspections—testing accessible areas first, then scheduling internal work during planned maintenance windows. Our goal is to gather maximum integrity data with minimum operational disruption to your facility.

If inspection reveals wall thinning below safe operating limits, permeations, or structural damage, AmTech provides a detailed repair plan with timeline and cost estimates. Options typically include localized steel patching for small corroded areas, full tank re-lining with DuraChem or HydraStone systems to restore corrosion protection, fiberglass laminate repair for FRP tanks, or tank replacement if damage is too extensive for economical repair. As a full-service tank contractor, AmTech can execute repairs immediately after inspection—our crews carry repair materials and can often mobilize same-week to address critical findings and return tanks to compliant service.