Whether radon-in-water aeration system is the right answer in Hillsborough depends on what is actually under the floor.
How this normally comes up
- A gross alpha or radon-in-water result from a Private Well Testing Act sample
- A private well and an indoor reading that a soil-gas system did not fully explain
- Neighbours on the same aquifer with known radioactivity in their water
Why this comes up in Hillsborough
The subdivisions and the mountain are not on the same supply. A well on the Sourland side draws from the diabase — the same rock that limits how far suction travels under a slab.
Hillsborough Township, Somerset County — the state's own numbers
32% of the 11,654 test results NJDEP holds for Hillsborough Township, Somerset County were at or above the 4.0 pCi/L action level — 3,785 of them. That puts it in Tier 1 — high potential.
Hillsborough is the large Somerset County township east of Hunterdon, running from the Sourland ridge down across the Millstone valley, and that shapes what a system here has to be designed around.
Getting the work done in Hillsborough
Suburban lots with good access; the mountain properties are wooded and more constrained.
Any permit for this runs through Hillsborough Township, Somerset County. NJDEP radon certification has to be current before a business receives anything from us.
What the work involves
Aeration strips radon out of the water in a vented tank before it reaches the taps, then discharges it outdoors. It is the treatment the EPA points to for high waterborne radon, it needs a repressurisation pump and annual servicing, and it belongs at the point of entry — treating one bathroom does nothing for the rest of the house.
Typical cost in Hunterdon County, NJ
$3,800 – $6,500 — typical range, not a quote. What your building needs can only be settled by a certified business that measures it on site.
A crew that works Hillsborough Township, Somerset County regularly will have met this pattern before.
Certification, checked before referral
Installing radon mitigation for a fee in New Jersey requires NJDEP certification as a radon mitigation business, affiliated with a certified radon mitigation specialist (N.J.A.C. 7:28-27). We confirm that on the NJDEP register and record the date we checked. That is a check, not an endorsement — satisfy yourself before you hire.
System running and the reading hasn't moved?
One description is enough. We'll send it to certified local crews and leave the decision entirely with you.
Get quotes in Hillsborough →Related
Other things that come up here
Other work in Hillsborough
Same ground, different question.
Radon-in-water aeration system nearby
Neighbouring towns on the same ground.