Scotts Valley Water Hardness & Quality Report (2026)
Water Hardness
8.2 grains per gallon
Source
mixed
pH Level
8
neutral = 7.0
Lead
0.006 mg/L
✓ Below action level
TDS
394.9 mg/L
Est. Daily Cost
$0.37
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 Scotts Valley, your appliances are currently losing 19% efficiency due to mineral buildup.
| Appliance | In Scotts Valley | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 5 yrs | 8.5 yrs | -41% |
| Washing Machine | 8.4 yrs | 12 yrs | -30% |
| Water Heater | 10 yrs | 15 yrs | -33% |
Regional Water Comparison
How Scotts Valley compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Scotts Valley, California | 140 mg/L | 6.1 ppt | 🟠 Hard | mixed |
| Live Oak, California | 85.5 mg/L | 4.5 ppt | 🟡 Moderately Hard | mixed |
| Santa Cruz, California | 81 mg/L | 4.4 ppt | 🟡 Moderately Hard | mixed |
| Capitola, California | 106 mg/L | 5.1 ppt | 🟡 Moderately Hard | mixed |
| Los Gatos, California | 162 mg/L | 6.7 ppt | 🟠 Hard | mixed |
National Benchmark
How Scotts Valley compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Scotts Valley | 140 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Scotts Valley's Water Unique?
Local geology and source profile
Scotts Valley, California, in Santa Cruz County — a Santa Cruz County city adjacent to Santa Cruz and Ben Lomond in the Santa Cruz Mountains of central California — receives its water from the Scotts Valley Water District, drawing from Loch Lomond Reservoir on the San Lorenzo River and local groundwater through the Santa Cruz Mountains distribution.
The hard 140 mg/L hardness and TDS of 394.9 mg/L are notably elevated for a California coastal mountain supply — the Cretaceous Santa Cruz Mudstone and Tertiary Monterey Formation both contain calcareous shell debris and foraminifera, contributing dissolved minerals despite the forested mountain watershed (compare Ben Lomond CA: 138/388 in Santa Cruz County comparable; Felton CA: 142/400 in Santa Cruz County comparable; Scotts Valley consistent hard from the same Santa Cruz County San Lorenzo Cretaceous-Tertiary calcareous supply). The San Lorenzo watershed at Santa Cruz County — Cretaceous Santa Cruz Mudstone (slightly calcareous — primary hardness contributor), Tertiary Monterey Formation (calcareous — secondary contributor), and Quaternary San Lorenzo alluvium (calcareous — TDS contributor).
At 140 mg/L with TDS 395, Scotts Valley's water is hard — scale builds in appliances over months. Quarterly descaling is appropriate. The PFAS level of 6.1 ppt warrants a certified drinking water filter. Review the Scotts Valley Water District's annual water quality report for the latest contaminant data.
Geology & Source: Scotts Valley in Santa Cruz County draws from the Scotts Valley Water District on Loch Lomond Reservoir (Santa Cruz County, central California coast) — the San Lorenzo watershed at Santa Cruz County drains Cretaceous Santa Cruz Mudstone (slightly calcareous) and Tertiary Monterey Formation (calcareous) — California Santa Cruz County San Lorenzo Cretaceous-Tertiary supply produces hard water at 140 mg/L with TDS 394.9 mg/L.