Ogdensburg Water Hardness & Quality Report (2026)
Water Hardness
5.2 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
159.7 mg/L
Est. Daily Cost
$0.24
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Ogdensburg, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Ogdensburg | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.6 yrs | 8.5 yrs | -22% |
| Washing Machine | 10.3 yrs | 12 yrs | -14% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Ogdensburg compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Ogdensburg, New York | 89.5 mg/L | 4.4 ppt | 🟡 Moderately Hard | reservoir |
| Massena, New York | 167 mg/L | 8 ppt | 🟠 Hard | reservoir |
| Fort Drum, New York | 68.5 mg/L | 3.5 ppt | 🟡 Moderately Hard | reservoir |
| Watertown, New York | 128 mg/L | 6.2 ppt | 🟠 Hard | reservoir |
| Rome, New York | 67.5 mg/L | 3.4 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Ogdensburg compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Ogdensburg | 89.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Ogdensburg's Water Unique?
Local geology and source profile
Ogdensburg, New York, in St. Lawrence County — a St. Lawrence County city adjacent to Massena and Gouverneur on the St. Lawrence River at the US-Canada border — receives its water from the City of Ogdensburg Water Department, drawing from the St. Lawrence River through the north New York distribution.
The moderately hard 89.5 mg/L hardness and TDS of 159.7 mg/L reflect the St. Lawrence County supply's moderate character — the Precambrian Grenville Province gneiss provides insoluble dilution, while Ordovician Trenton Limestone contributes moderate calcareous mineral content from the St. Lawrence Lowlands limestone belt; the massive volume of St. Lawrence River water dilutes mineral content considerably (compare Massena NY: 87/153 in St. Lawrence County comparable; Gouverneur NY: 91/165 in St. Lawrence County comparable; Ogdensburg consistent moderate from the same St. Lawrence County St. Lawrence Precambrian insoluble supply). The St. Lawrence watershed — Precambrian Grenville Province gneiss (insoluble — primary dilutant), Ordovician Trenton Limestone (calcareous — primary hardness contributor), and Quaternary St. Lawrence alluvium (slightly calcareous — minor TDS).
At 89.5 mg/L with TDS 160, Ogdensburg's water is moderately hard — mild scale buildup. Semi-annual descaling is appropriate. The PFAS level of 4.4 ppt is moderate — a certified drinking water filter provides added protection. Review the City of Ogdensburg's annual water quality report.
Geology & Source: Ogdensburg in St. Lawrence County draws from the Ogdensburg Water on the St. Lawrence River (St. Lawrence County, north New York) — the St. Lawrence drains Precambrian Grenville Province gneiss (insoluble) and Ordovician Trenton Limestone (calcareous) — New York St. Lawrence County St. Lawrence Precambrian insoluble supply produces moderately hard water at 89.5 mg/L with TDS 159.7 mg/L.