North Logan Water Hardness & Quality Report (2026)
Water Hardness
18.7 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
990.5 mg/L
Est. Daily Cost
$0.85
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 North Logan, your appliances are currently losing 43% efficiency due to mineral buildup.
| Appliance | In North Logan | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3 yrs | 12 yrs | -75% |
| Water Heater | 5 yrs | 15 yrs | -67% |
Regional Water Comparison
How North Logan compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ North Logan, Utah | 320 mg/L | 4.7 ppt | 🔴 Very Hard | mixed |
| Logan, Utah | 203.5 mg/L | 2.9 ppt | 🔴 Very Hard | mixed |
| Smithfield, Utah | 314.5 mg/L | 4.6 ppt | 🔴 Very Hard | mixed |
| Brigham City, Utah | 173 mg/L | 2.4 ppt | 🟠 Hard | mixed |
| North Ogden, Utah | 327 mg/L | 4.7 ppt | 🔴 Very Hard | mixed |
National Benchmark
How North Logan compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ North Logan | 320 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes North Logan's Water Unique?
Local geology and source profile
North Logan, Utah, in Cache County — a Cache County city adjacent to Logan and Hyde Park in the Cache Valley on the Wasatch Range — receives its water from the North Logan City Water Department, drawing from the Logan River and local wells through the north Utah distribution.
The extremely hard 320 mg/L hardness and very high TDS of 990.5 mg/L reflect the Cache County supply's extreme calcareous character — the Precambrian Wellsville Mountain Quartzite provides insoluble dilution, while the Ordovician Garden City Formation is a highly calcareous carbonate unit in the Wasatch Range; Cache Valley groundwater wells concentrate elevated evaporitic mineral content from ancient Lake Bonneville and deep Cache Valley basin alluvium (compare Logan UT: 315/974 in Cache County comparable; Hyde Park UT: 324/1006 in Cache County comparable; North Logan consistent extremely hard from the same Cache County Logan River Ordovician calcareous supply). The Logan River watershed — Precambrian Wellsville Mountain Quartzite (insoluble — primary dilutant), Ordovician Garden City Formation (highly calcareous — primary hardness contributor), and Quaternary Lake Bonneville/Cache Valley alluvium (evaporitic — TDS contributor).
At 320 mg/L with TDS 991, North Logan's water is extremely hard — a whole-house water softener is essential. A reverse osmosis system is strongly recommended for drinking due to very high TDS. The PFAS level of 4.7 ppt is moderate — a certified drinking water filter provides added protection. Review the North Logan City Water Department's annual water quality report.
Geology & Source: North Logan in Cache County draws from the North Logan Water on the Logan River/Logan Peak watershed (Cache County, north Utah) — the Wasatch Range at Cache County draws from Precambrian Wellsville Mountain Quartzite (insoluble) and Ordovician Garden City Formation (highly calcareous) — Utah Cache County Logan River Ordovician calcareous supply produces extremely hard water at 320 mg/L with TDS 990.5 mg/L.