Silver Lake Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
mixed
pH Level
7.3
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
113 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · 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 Silver Lake, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Silver Lake | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Silver Lake compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Silver Lake, California | ≈ 120–179 mg/L | 3.4 ppt | 🟠 Hard | mixed |
| Echo Park, California | ≈ 120–179 mg/L | 3.4 ppt | 🟠 Hard | mixed |
| Atwater Village, California | ≈ 120–179 mg/L | 435.3 ppt | 🟠 Hard | groundwater |
| Koreatown, California | ≈ 120–179 mg/L | 7.5 ppt | 🟠 Hard | mixed |
| Los Angeles, California | ≈ 180+ mg/L | 4 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How Silver Lake compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Silver Lake | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Silver Lake's Water Unique?
Local geology and source profile
The Silver Lake Valley Groundwater Basin supplies water in north central San Bernardino County, California, primarily serving domestic and irrigation needs. Managed under California's groundwater oversight program (DWR Bulletin 118), the basin relies on local groundwater from Quaternary alluvium aquifers, with wells tapping the 55.2 square mile basin holding approximately 380,000 acre-feet of total storage. Basin elevations range from 900 feet at Silver Lake to 1,200 feet at the south end. Surface water contributions are minimal, and no specific named municipal utility or treatment plants are identified in available data for this basin.
The watershed encompasses the north-trending Silver Lake Valley, bounded by the Soda Mountains, with recharge occurring through alluvial fan percolation at the base of the mountains and direct precipitation infiltration. Quaternary alluvium dominates as the aquifer material, accumulating minerals including calcium, magnesium, sodium, chloride, bicarbonate, fluoride, and boron as water percolates through soil and rock. This geology produces groundwater of sodium chloride or sodium bicarbonate-chloride type with elevated total dissolved solids, shaped by mineral-rich alluvial deposits and basin hydrology.
Mineral buildup causes scale in pipes, reducing flow and efficiency; water heaters, dishwashers, and washing machines suffer reduced lifespan and higher energy costs from hard to very hard water. Soap lathers poorly, leaving spots on dishes and causing skin dryness. Regular vinegar descaling, low-flow fixtures, and magnetic/electronic descalers can help mitigate effects, and a water softener is recommended to protect plumbing and appliances. Groundwater shows elevated TDS (marginal to inferior quality), fluoride averaging 2.3 mg/L (range 0.8–4.0), and boron averaging 1.3 mg/L (range 0.9–1.8) per basin reports.
Geology & Source: Silver Lake Valley Groundwater Basin, San Bernardino County — Quaternary alluvium fed by Soda Mountains alluvial fans; sodium chloride/bicarbonate-chloride type with elevated TDS; mineral-rich alluvial deposits produce hard supply
Other California Water Reports
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Frequently Asked Questions
Is Silver Lake's water safe to drink?
Do I need a water softener in Silver Lake?
How does Silver Lake compare to the USA average?
Data Sources & Methodology
Water quality data for Silver Lake is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.