Port Orchard Water Hardness & Quality Report (2026)
Water Hardness
4.1 grains per gallon
Source
reservoir
pH Level
7.7
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
177.3 mg/L
Est. Daily Cost
$0.19
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 Port Orchard, your appliances are currently losing 9% efficiency due to mineral buildup.
| Appliance | In Port Orchard | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.3 yrs | 8.5 yrs | -14% |
| Washing Machine | 11 yrs | 12 yrs | -8% |
| Water Heater | 12.8 yrs | 15 yrs | -15% |
Regional Water Comparison
How Port Orchard compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Port Orchard, Washington | 70.5 mg/L | 3.1 ppt | 🟡 Moderately Hard | reservoir |
| Bremerton, Washington | 41 mg/L | 2.2 ppt | 🟢 Soft | reservoir |
| Silverdale, Washington | 20 mg/L | 1.5 ppt | 🟢 Soft | reservoir |
| Bainbridge Island, Washington | 38 mg/L | 2.1 ppt | 🟢 Soft | reservoir |
| Artondale, Washington | 52.5 mg/L | 2.5 ppt | 🟢 Soft | reservoir |
National Benchmark
How Port Orchard compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Port Orchard | 70.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Port Orchard's Water Unique?
Local geology and source profile
Port Orchard, Washington, in Kitsap County — the Kitsap County seat adjacent to Bremerton and Gig Harbor on Sinclair Inlet in northwest Washington — receives its water from the City of Port Orchard Water or Kitsap County utilities, drawing from local Kitsap aquifer or watershed sources (Kitsap County) through the Kitsap Peninsula distribution.
The moderately soft 70.5 mg/L hardness and TDS of 177.3 mg/L reflect the northwest Washington Kitsap County Peninsula supply's soft character — driven by the Kitsap Peninsula's Pleistocene glacial drift aquifer with limited calcareous dissolution, typical of the west Puget Sound peninsula communities. The Kitsap Peninsula aquifer — Pleistocene glacial drift (slightly calcareous — primary hardness contributor from calcareous till), Eocene Puget Group basalt (insoluble — dilutant), and Quaternary glacial outwash (slightly calcareous — secondary contributor).
At 70.5 mg/L, Port Orchard's water is moderately soft — light scale forms slowly in appliances, dishwashers remain efficient, and bathroom fixtures need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 3.1 ppt warrants a certified drinking water filter — Naval Station Bremerton (Kitsap County — AFFF, adjacent) contribute to Port Orchard's readings.
Geology & Source: Port Orchard in Kitsap County draws from the City of Port Orchard Water or Kitsap County utilities on local Kitsap aquifer or South Fork Olalla Creek watershed (Kitsap County, northwest Washington) — the Kitsap Peninsula aquifer is developed in Pleistocene glacial drift (slightly calcareous) over Eocene basalt (insoluble) — Washington Kitsap County Kitsap Peninsula Pleistocene glacial aquifer produces moderately soft water at 70.5 mg/L with TDS 177.3 mg/L.