Mill Creek East Water Hardness & Quality Report (2026)
Water Hardness
2.1 grains per gallon
Source
reservoir
pH Level
7.3
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
69.9 mg/L
Est. Daily Cost
$0.10
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 Mill Creek East, your appliances are currently losing 5% efficiency due to mineral buildup.
| Appliance | In Mill Creek East | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.4 yrs | 8.5 yrs | -1% |
| Washing Machine | 12.2 yrs | 12 yrs | — |
| Water Heater | 14.1 yrs | 15 yrs | -6% |
Regional Water Comparison
How Mill Creek East compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Mill Creek East, Washington | 36.5 mg/L | 2 ppt | 🟢 Soft | reservoir |
| North Creek, Washington | 79 mg/L | 3.3 ppt | 🟡 Moderately Hard | reservoir |
| Mill Creek, Washington | 39 mg/L | 2.1 ppt | 🟢 Soft | reservoir |
| Silver Firs, Washington | 35.5 mg/L | 2 ppt | 🟢 Soft | reservoir |
| Martha Lake, Washington | 13.5 mg/L | 1.3 ppt | 🟢 Soft | reservoir |
National Benchmark
How Mill Creek East compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Mill Creek East | 36.5 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
Bring Badger-quality water to your Mill Creek East home
Shop water softeners on Amazon.com →
What Makes Mill Creek East's Water Unique?
Local geology and source profile
Mill Creek East (part of Mill Creek), Washington, in Snohomish County — a Snohomish County community adjacent to Bothell and Lynnwood in the south Snohomish suburb of the Seattle metro — receives its water from the Alderwood Water and Wastewater District, drawing from Spada Lake Reservoir (Sultan River, Snohomish County) through the north Seattle metro distribution.
The very soft 36.5 mg/L hardness and very low TDS of 69.9 mg/L reflect the Cascade Range watershed's nearly insoluble volcanic and metamorphic geology — consistent with other south Snohomish-north King County communities. The Sultan River (Spada Lake Reservoir) drains the Cascade Range — Eocene Challis Formation volcanic (andesite and basalt — insoluble), Jurassic metamorphic (insoluble), and Pleistocene glacial outwash (minimal mineral loading). The insoluble Cascade volcanic geology produces the very soft northwest Washington supply.
At 36.5 mg/L, Mill Creek East's water is very soft — essentially no scale forms, soap lathers abundantly, and appliances maintain excellent efficiency. Annual descaling is sufficient. The PFAS level of 2.0 ppt is very low — the Snohomish County north Seattle suburban corridor has essentially no major industrial PFAS point sources adjacent to the Sultan River Cascade watershed.
Geology & Source: Mill Creek East in Snohomish County draws from the Alderwood Water District on Spada Lake Reservoir (Snohomish County, northwest Washington) — the Sultan River-Spada watershed drains the Cascade Range (Eocene Challis Formation volcanic — insoluble) — Washington Snohomish County Sultan River Cascade volcanic watershed produces very soft water at 36.5 mg/L with TDS 69.9 mg/L in this Snohomish County Washington community.