Chubbuck Water Hardness & Quality Report (2026)
Water Hardness
2.9 grains per gallon
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
85.7 mg/L
Est. Daily Cost
$0.13
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 Chubbuck, your appliances are currently losing 7% efficiency due to mineral buildup.
| Appliance | In Chubbuck | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8 yrs | 8.5 yrs | -6% |
| Washing Machine | 11.8 yrs | 12 yrs | -2% |
| Water Heater | 13.6 yrs | 15 yrs | -9% |
Regional Water Comparison
How Chubbuck compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Chubbuck, Idaho | 49 mg/L | 1.3 ppt | 🟢 Soft | reservoir |
| Pocatello, Idaho | 36.5 mg/L | 1.1 ppt | 🟢 Soft | reservoir |
| Idaho Falls, Idaho | 44.5 mg/L | 1.3 ppt | 🟢 Soft | reservoir |
| Ammon, Idaho | 63.5 mg/L | 1.5 ppt | 🟡 Moderately Hard | reservoir |
| Conda, Idaho | 74.5 mg/L | 1.7 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Chubbuck compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Chubbuck | 49 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Chubbuck's Water Unique?
Local geology and source profile
Chubbuck, Idaho, in Bannock County — a Bannock County city adjacent to Pocatello and Alameda in southeast Idaho — receives its water from the Chubbuck Water Division, drawing from the Eastern Snake River Plain Aquifer (Bannock County) through the southeast Idaho water treatment system.
The very soft 49 mg/L hardness and TDS of 85.7 mg/L reflect the southeast Idaho Snake River Plain supply's near-insoluble volcanic basalt character — consistent with other Eastern Snake River Plain communities (Pocatello: ~48 mg/L; Ammon: ~50 mg/L). The Eastern Snake River Plain Aquifer at Bannock County is developed in Quaternary Columbia River Basalt (near-insoluble — primary supply), Quaternary volcanic ash and tephra (low-solubility), and minor Quaternary alluvial and calcareous sediment (calcareous — minor hardness contributor). The insoluble basaltic Snake River Plain aquifer produces the very soft southeast Idaho supply.
At 49 mg/L, Chubbuck's water is very soft — minimal scale forms, dishwashers require very little detergent, and appliances remain scale-free. Annual descaling is sufficient. The PFAS level of 1.3 ppt is extremely low — the Bannock County southeast Idaho rural corridor has minimal adjacent AFFF military PFAS sources, making Chubbuck one of the lowest PFAS readings in the USA dataset.
Geology & Source: Chubbuck in Bannock County draws from the Chubbuck Water Division on the Eastern Snake River Plain Aquifer (Bannock County, southeast Idaho) — the Eastern Snake River Plain Aquifer is developed in Quaternary basalt lava flows (near-insoluble) and overlying volcanic ash deposits — Idaho Bannock County Snake River Plain Quaternary basaltic volcanic aquifer produces very soft water at 49 mg/L with TDS 85.7 mg/L.