Roxbury System water quality
Hard5 municipalities · Morris
Roxbury System reports water hardness of 9.9 grains per gallon — 169 mg/L as calcium carbonate, hard on the USGS scale. Because the reading is taken on finished water leaving treatment, it is the figure for all 5 towns on this system rather than for any one of them.
Reported panel
| Hardness (grains per gallon) | 9.9 |
|---|---|
| Hardness (mg/L as CaCO₃) | 169 |
| Classification | Hard |
| pH | Not reported in CCR |
| Total dissolved solids | Not reported in CCR |
| Disinfectant residual | Chlorine: entry 0.5 (0.5-1.5) ppm; distribution 1.1 (0.9-1.1) ppm |
| Sodium | 6 to 14 ppm |
| Chloride | 4 to 42 ppm |
| Sulfate | Not listed as detected in this CCR |
| Fluoride | up to 0.2 ppm |
| Manganese | Not listed as detected in this CCR |
| Iron | Not listed as detected in this CCR |
Source: NJ American Water — Roxbury System, 2025 CCR (PWS ID NJ1436002).
Municipalities on this system
Questions people ask
- How hard is Roxbury System water?
- Roxbury System reports hardness of 9.9 grains per gallon (169 mg/L as calcium carbonate), which the USGS scale classifies as hard. The figure is a system-wide reading and applies to every municipality on the system.
- Which towns are served by Roxbury System?
- 5 municipalities on file are served by Roxbury System, across Morris County: Kenvil, Landing, Ledgewood, Port Morris, Succasunna.
- Why do towns on Roxbury System publish the same hardness number?
- Hardness is measured at the treatment plant and at entry points to distribution, not street by street. Every town buying finished water from Roxbury System therefore reports the same value.
- How much sodium is in Roxbury System water?
- Roxbury System reports sodium at 6 to 14 ppm. That matters for anyone on a sodium-restricted diet, and it is also what rises if an ion-exchange softener is added downstream.
- Do I need a water softener on Roxbury System water?
- At 9.9 gpg, ion-exchange softening is generally worth considering.
Get your own tap tested
System-wide figures describe finished water leaving the plant. A test at your own tap is what tells you the hardness, iron and pH your plumbing actually sees.
Hardness is a nuisance parameter, not a regulated health contaminant. See the Learn hub for treatment comparisons, or how these figures are sourced.