Clinton Township owners ask about active sub-slab depressurization more than you would think for a town this size.
How this normally comes up
- A finished basement that is used as living space and has never been tested
- A test came back at or above 4.0 pCi/L on a basement or slab home
- Cracks and utility penetrations through a slab you can see daylight around
Why this comes up in Clinton Township
Supply varies sharply across this township. A well draws from whichever of Clinton Township's three bedrock settings the property sits over, which is also what decides its soil-gas behaviour.
Clinton Township — the state's own numbers
36% of the 5,885 test results NJDEP holds for Clinton Township were at or above the 4.0 pCi/L action level — 2,126 of them. That puts it in Tier 1 — high potential. NJDEP reports Clinton Township together with Clinton Town as one row, so both carry these figures.
Rural farmsteads and older houses on the original roads, with substantial subdivision development along and off Route 31.
What access looks like here
Generally open, with room around most houses.
Clinton Township handles permitting for work at this address.
The usual approach
The standard fix. A suction point is cut through the slab, pipe is run up through the house or along an exterior wall, and an in-line fan mounted outside conditioned space pulls soil gas from under the floor and discharges it above the roofline. Sizing follows a diagnostic reading of how permeable the fill under the slab actually is, not the square footage of the house.
Typical cost in Hunterdon County, NJ
$1,200 – $2,600 — typical range, not a quote. What your building needs can only be settled by a certified business that measures it on site.
Local experience matters here — the ground under Clinton Township does not behave like the other end of the county.
Who is allowed to do this in New Jersey
Under N.J.A.C. 7:28-27 this is not work a general contractor may take on. It requires a business certified by NJDEP for radon mitigation, with a certified mitigation specialist directing the work. We verify that on the state register, note the date, and route accordingly — but a verified certification is a fact, not a recommendation.
Want to know what a fix would actually cost?
Send us the reading and your town. We'll pass it to certified local crews and get out of the way. Free, and you're not committing to anything.
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Also common in Clinton Township
Other work in Clinton Township
Same ground, different question.
Active sub-slab depressurization nearby
Neighbouring towns on the same ground.