Eagle River Water Hardness & Quality Report (2026)
Water Hardness
3.2 grains per gallon
Source
reservoir
pH Level
7.5
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
131.1 mg/L
Est. Daily Cost
$0.15
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 Eagle River, your appliances are currently losing 7% efficiency due to mineral buildup.
| Appliance | In Eagle River | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.8 yrs | 8.5 yrs | -8% |
| Washing Machine | 11.6 yrs | 12 yrs | -3% |
| Water Heater | 13.4 yrs | 15 yrs | -11% |
Regional Water Comparison
How Eagle River compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Eagle River, Alaska | 54.5 mg/L | 1 ppt | 🟢 Soft | reservoir |
| Knik-Fairview, Alaska | 69.5 mg/L | 1.1 ppt | 🟡 Moderately Hard | reservoir |
| Anchorage, Alaska | 58.5 mg/L | 1 ppt | 🟢 Soft | reservoir |
| College, Alaska | 19 mg/L | 0.5 ppt | 🟢 Soft | reservoir |
| Fairbanks, Alaska | 10 mg/L | 0.4 ppt | 🟢 Soft | reservoir |
National Benchmark
How Eagle River compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Eagle River | 54.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Eagle River's Water Unique?
Local geology and source profile
Eagle River, Alaska, in the Municipality of Anchorage northeast of downtown Anchorage along the Glenn Highway corridor, receives its municipal water from the Anchorage Water & Wastewater Utility (AWWU), which draws from the Eagle River via watershed intake in Chugach State Park — one of North America's largest urban state parks. The Eagle River originates at Eagle Glacier in the Chugach Mountains and flows westward through a glacially carved valley before entering the Knik Arm flats north of Anchorage. AWWU treats this glacial mountain river water at the Eagle River Water Treatment Facility before distribution through the eastern Anchorage municipal system.
The soft 54.5 mg/L hardness reflects the Eagle River's glacially dominated mountain hydrology. The Chugach Mountains above Eagle River are composed of Jurassic and Cretaceous greywacke, argillite, metavolcanic rocks, and Alaskan blueschist — siliceous to weakly metamorphosed marine sedimentary sequences with minimal carbonate content. Active glacial meltwater, which dominates summer flow in the Eagle River, is naturally very low in dissolved minerals — ice formed from snowpack accumulates essentially no carbonate. Winter and shoulder-season baseflow from snowmelt and groundwater adds some mineral content, raising hardness above pure glacial meltwater values.
At 54.5 mg/L, Eagle River has pleasantly soft water — a comfortable and appliance-friendly supply for this Anchorage suburb. Soap lathers well, appliances scale only gradually over months, and glassware from the dishwasher emerges with minimal spotting. Annual descaling of kettles and coffee machines is sufficient under normal conditions. Alaska's exceptional source water purity is reflected in the outstanding PFAS level of just 1.0 ppt — one of the lowest in this dataset — confirming the Eagle River watershed's pristine character upstream of the community intake. Eagle River's water quality profile is genuinely among the best in this entire batch.
Geology & Source: Eagle River in the Anchorage Municipality draws from the Eagle River watershed in Chugach State Park — the Eagle River drains glacially carved valleys through the Chugach Mountains over Jurassic and Cretaceous greywacke, argillite, and volcanic rocks with minimal carbonate exposure — glacially polished siliceous mountain rock and active glacial meltwater dilution produce soft water at 54.5 mg/L characteristic of Alaska's glacier-fed river systems.