Hunterdon County · 25 of 26 towns NJDEP Tier 1 Action level 4.0 pCi/L Free for homeowners — paid by the crews

Holland Township, Holland Township

Radon-in-water aeration system in Holland Township

Point-of-entry aeration for private wells carrying radon into the house through the plumbing. The half of the problem an air system can't reach.

Holland Township owners ask about radon-in-water aeration system more than you would think for a town this size.

The situations this follows from

  • 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 Holland Township

Here is what makes Holland Township particular: holland sits almost wholly outside public supply. A well here draws from the rock along the Newark Basin–Musconetcong transition, which changes character across the township.

Holland Township — the state's own numbers

43% of the 815 test results NJDEP holds for Holland Township were at or above the 4.0 pCi/L action level — 352 of them. That puts it in Tier 1 — high potential.

Farmsteads and river-road houses of 19th century date, with post-1970s single-family building on large lots inland.

Practicalities in Holland Township

Large rural lots with room to work, though river-road properties can be tight against the road and the bank.

Construction permits go through Holland Township, and installing radon mitigation for a fee anywhere in New Jersey requires NJDEP certification.

The usual approach

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.

The right answer depends on your specific building, which is why somebody has to measure it.

What we confirm before anyone calls you

This is certified work in New Jersey, not general home improvement. We look up the business on the NJDEP radon register, confirm the mitigation certification is active, and record the date. Insurance is not part of that check, and nothing here should be read as confirming that any business carries liability cover. None of that is an endorsement of their workmanship — get more than one quote.

Never tested, and wondering whether to?

Write down what the system is doing and what the re-test said. We'll get it to crews who diagnose rather than guess.

Get quotes in Holland Township →