Water hardness in River Edge, New Jersey

River Edge water tests at 136 mg/L of hardness, or about 8 grains per gallon: hard by the standard USGS classification. Veolia Hackensack Service System reports it in Veolia Water New Jersey Hackensack 2024 Annual Water Quality Report (PWSID NJ0238001) (2025 (2024 data)); River Edge sits inside that service area in Bergen County.

Expect visible scale on fixtures, spotting on dishes, and shortened service life on water heaters that are never flushed. Ion-exchange softening is generally worth considering at this level.

The supply here is Veolia Hackensack System, a regional system reporting 8 gpg of hardness for every town it serves, River Edge included. That is why 50 other New Jersey municipalities publish the same number.

See the full Veolia Hackensack System water quality report for the complete panel — sodium, chloride, sulfate, fluoride, manganese, iron, pH and total dissolved solids — plus every other town on the system.

With hardness reported at 8 gpg, River Edge counts as hard. An ion-exchange softener is generally the better fit than a conditioner at this level, because it removes the calcium and magnesium rather than converting them, which is what prevents scale in the water heater as well as on fixtures. A conditioner still helps if brine discharge is restricted or there is no drain nearby.

Hardness in River Edge is not a fixed number through the year — a utility figure is an annual average, and demand, source switching and temperature all shift it. If a reading at your tap differs from 8 gpg, the season it was taken in explains part of the gap.

Whatever is installed in River Edge needs attention afterwards: brine tanks run out of salt, resin beds channel after a decade, and a neglected softener passes hard water through while looking like it works. Budget the service visit, not just the unit.

The honest comparison is annual, not one-off. Salt, regeneration water and a service call are recurring; the saving shows up as a water heater that lasts its rated life and fixtures that do not need replacing early. At 8 gpg those two columns are close enough that the state of your heater usually settles it.

For the mechanics behind that, what hard water actually is covers the units and scale chemistry, and the Learn hub compares softeners against conditioners in detail.

Veolia Hackensack System reports sodium of 86 ppm (above NJ recommended upper limit of 50 ppm) — the top of that range, about 86 ppm, is already above the 20 mg/L level the EPA suggests as a guide for people on a physician-ordered 500 mg/day sodium restriction, before any treatment is added at the house.

That matters if softening is on the table in River Edge, because ion exchange trades calcium and magnesium for sodium at roughly 8 mg/L for every grain per gallon removed — on 8 gpg that is an added ~64 mg/L on top of what the utility already delivers. Households watching sodium usually leave the kitchen cold tap unsoftened or fit potassium chloride instead.

For the full breakdown, read how much sodium a softener actually adds, which sets out the sources behind it.