Active sub-slab depressurization in Clinton Township
One or more suction points through the slab, sealed pipe to above the roofline, and a fan outside the living space. The system most Hunterdon houses get.
Clinton Township
Newark Basin shale country. Free referrals to NJDEP-certified radon businesses covering Clinton Township.
Part of Clinton Township, Clinton Township is a large township wrapped around Spruce Run and reaching to Round Valley, surrounding the town of Clinton on three sides.
Housing stock. Rural farmsteads and older houses on the original roads, with substantial subdivision development along and off Route 31.
Water supply. 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 is where three of Hunterdon's geological settings meet within one municipality: Highlands rock in the north, carbonate valley through the middle, and the shale-and-diabase country of the Newark Basin toward Round Valley. Depth to bedrock and the character of the fill under a slab vary accordingly, and that is the variable that decides whether one suction point can service a whole floor. The housing is equally mixed — 18th and 19th century farm properties on stone foundations, and thirty years of subdivision building on poured basements. Both the well-water question and the multi-point suction question come up here regularly, and which one applies depends on where in the township the property sits.
Read that as the character of the ground rather than a claim about any one lot — geological boundaries cut across town lines, and the NJ Geological Survey's bedrock mapping is what settles which formation a given address sits on.
Around Clinton Township. The requests come from the Route 31 corridor and the Beaver Brook area; the Spruce Run Reservoir shoreline neighbourhoods; the Round Valley and Cushetunk Mountain edge; the Hamden and Allerton corners; the Lansdowne and Grayrock roads country.
Generally open, with room around most houses.
There is no single typical Clinton Township job. Newer subdivision houses install at the ordinary end; older farm properties with irregular foundations and separate additions can need more than one suction point and considerably more sealing. A quote that has not looked at the actual foundation is guessing.
Clinton Township wraps around both Spruce Run and part of Round Valley and takes in Highlands, carbonate and Newark Basin ground within one municipality, which makes it the most geologically varied town in the county.
Because the township surrounds Clinton Town on three sides and shares its postal address, a great many properties described as being in Clinton are actually under a different construction office and often a different water supply.
Permits run through the Clinton Township construction office, which is separate from the Clinton Town office. Properties on private wells sit over the same fractured rock that supplies the soil gas, so gross alpha screening at the point of sale often surfaces the water side first.
Because postal addresses and municipal boundaries diverge across this county — and because construction-code services are sometimes shared between towns — the first thing to establish is which office actually has jurisdiction.
What NJDEP has actually measured in Clinton Township
| Test results in NJDEP's dataset | 5,885 |
|---|---|
| At or above 4.0 pCi/L | 2,126 |
| Share at or above the action level | 36% |
| NJDEP tier | Tier 1 — high potential |
Tier 1 means at least 25 homes tested with 25 percent or more at or above 4 pCi/L. NJDEP reports Clinton Township together with Clinton Town as one row, so both carry these figures.
Source: New Jersey Department of Environmental Protection, Radon Section, 2015 Radon Tier Assignment Report (May 2015). NJDEP's figure is a cumulative count of test results in its dataset, not a count of distinct homes. These are municipality-wide totals and say nothing about any individual property — only a test does that.
One description is enough. We'll send it to certified local crews and leave the decision entirely with you.
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The work that actually applies to this ground.
One or more suction points through the slab, sealed pipe to above the roofline, and a fan outside the living space. The system most Hunterdon houses get.
Sealing the sump and drawing suction through an existing perimeter drain loop. Efficient where the drainage is already there.
A 48-hour closed-house test at the lowest lived-in level, placed and read by a New Jersey certified measurement business. The number everything else follows from.
Gasketed sump lids, sealed floor-wall joints, and closed slab penetrations. Rarely enough alone — but it makes the system that follows work properly.
Nearby
Red shale and mudstone of the Passaic Formation under Flemington and the centre of the county. Fractured rock, plenty of basements, and a mix of public water and wells.
Less common in Clinton Township, but available.