Certified oil tank sweep companies in Hunterdon County, NJ

✓ 7 companies based in Hunterdon County, from the NJDEP UST certification program (retrieved 2026-07-17). Companies based in neighboring counties often serve here too — see the full New Jersey list.

Company	Location	Certifications	Credential Score	License #
Engineered Environmental Inc	Califon Boro, NJ	Cathodic Protection SpecialistClosureInstallation-Entire UST SystemSubsurface EvaluationTank Testing	91	US00878
Ferreira Construction Company Inc	Readington Twp, NJ	ClosureSubsurface Evaluation	63	US425571
In Earth Excavating & Contracting Inc	Frenchtown Boro, NJ	Closure	54	US493670
Sme - Uhl & Associates	Lambertville City, NJ	Subsurface Evaluation	54	US562699
Stem Brothers Inc	Alexandria Twp, NJ	ClosureInstallation-Entire UST System	63	US00419
WILLOW GROVE CONSULTING, LLC d/b/a PENN JERS	Milford Boro, NJ	ClosureSubsurface Evaluation	38	US00577
Wyatt Construction LLC	East Amwell Twp, NJ	Closure	54	US1062677

FAQs

How many certified oil tank sweep companies are in Hunterdon County?

7 companies in the NJDEP UST certification program are based in Hunterdon County as of 2026-07-17. Companies based elsewhere in New Jersey also commonly serve the county.

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