Certified oil tank sweep company · New Jersey
Credential Score
Based only on what this company's public state credentials looked like in the 2026-07-17 registry snapshot — not a live status check, and not a review of their work or reputation.
Combines three signals from the 2026-07-17 NJDEP registry snapshot: how many UST certification categories the firm was recorded as holding (weighted most), how many of its recorded certification expiry dates are still unexpired as of this page's build date (2026-08-26), and how complete its public record is. Expiry is measured against the build date rather than the snapshot date, so a date that has passed since the snapshot counts as expired — and because a renewal made after the snapshot would not appear here either, this is snapshot evidence rather than a live registry check. Confirm current standing with NJDEP before relying on it. Registry data only — no reviews, ratings, or paid placement.
This profile is compiled from public registry records. It is not an endorsement, and Tank Sweep Finder has no business relationship with Castlton Environmental Contractors LLC unless noted. Is this your company? Claim or correct this listing — it's free.
New Jersey requires companies that test, install, or close underground storage tanks to hold NJDEP certifications by category. "Subsurface evaluation" is the certification most relevant to pre-purchase tank sweeps.
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