Winter Gardens Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

mixed

pH Level

8.3

neutral = 7.0

Lead

0.009 mg/L

✓ Below action level

TDS

592.6 mg/L

Est. Daily Cost

$0.40

energy & soap waste

Source: See methodology section below · Updated 2026

hard~120–179 mg/LHard · est.

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 Winter Gardens, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Winter Gardens	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 Winter Gardens compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Winter Gardens, California	≈ 120–179 mg/L	7.3 ppt	🟠 Hard	mixed
Bostonia, California	≈ 120–179 mg/L	7.4 ppt	🟠 Hard	mixed
Lakeside, California	≈ 180+ mg/L	14.4 ppt	🔴 Very Hard	reservoir
Santee, California	≈ 180+ mg/L	5.8 ppt	🔴 Very Hard	reservoir
El Cajon, California	≈ 120–179 mg/L	7.2 ppt	🟠 Hard	reservoir

National Benchmark

How Winter Gardens compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Winter Gardens	≈ 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 Winter Gardens's Water Unique?

Local geology and source profile

Source: MixedTDS: 592.6 mg/LpH: 8.3

Crescenta Valley Water District (CVWD) provides water to Winter Garden and surrounding areas in unincorporated Los Angeles County, California, near La Crescenta-Montrose. The district blends local groundwater from the San Fernando Valley Groundwater Basin with imported surface water supplied by the Metropolitan Water District of Southern California (MWD), sourced from the Colorado River Aqueduct and State Water Project. Key facilities include the La Crescenta Treatment Plant and multiple wells tapping alluvial aquifers, serving approximately 23 square miles with a population of around 40,000 residents. Treatment involves filtration, disinfection, fluoridation, and blending for consistent quality.

Water originates from the San Fernando Valley Basin and distant MWD sources including the Colorado River Basin. Underlying geology features Quaternary alluvium overlying Tertiary formations such as the Topanga and Fernando Groups (Miocene-Pliocene), containing significant limestone, dolomite, and evaporitic sediments. These soluble carbonate rocks naturally impart elevated mineral content during infiltration and conveyance, resulting in a hard supply typical of Southern California's groundwater-dominated systems; imported surface water adds further mineralization from basin traversals.

Hard water causes scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan — expect 20–30% higher energy use in heaters. Faucets, showerheads, and fixtures develop stubborn deposits, while laundry feels stiff and soap lathers poorly. Monthly vinegar soaks for showerheads, annual appliance descaling, and surface drying are recommended. A water softener is recommended to extend equipment life. CVWD maintains pH at 7.5–8.5 for corrosion control; no PFAS exceedances are reported in the 2024 Consumer Confidence Report; low-level arsenic from natural geology is managed below the 10 ppb MCL, and disinfection byproducts are controlled through chloramination.

Geology & Source: San Fernando Valley Groundwater Basin — Quaternary alluvium over Tertiary Fernando Formation (Pliocene-Miocene) limestone and dolomite; carbonate rocks dissolve calcium and magnesium; hard supply enhanced by imported Colorado River water

Other California Water Reports

Bostonia

≈ 120–179 mg/L

🟠 Hard

Lakeside

≈ 180+ mg/L

🔴 Very Hard

Santee

≈ 180+ mg/L

🔴 Very Hard

El Cajon

≈ 120–179 mg/L

🟠 Hard

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Notice an error or missing data? Help us keep this page accurate. If you spot incorrect water hardness, outdated utility info, or missing details, please let us know.

All reports are reviewed by our team. Thank you for supporting data quality!

Frequently Asked Questions

Is Winter Gardens's water safe to drink?

Yes. Winter Gardens's water meets all federal safety standards. The hardness is ≈ 120–179 mg/L (Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Winter Gardens?

At ≈ 120–179 mg/L (Hard), Winter Gardens's water will cause significant limescale on kettles, washing machines, and water heaters. A water softener or descaler is strongly recommended to extend appliance lifespan and reduce energy bills by up to 20%.

How does Winter Gardens compare to the USA average?

The USA national average is 151 mg/L. Winter Gardens (≈ 120–179 mg/L) is 1 mg/L below the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Winter Gardens is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.

Estimated

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.

Estimated

Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.

Estimated

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.

Measured

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.

Modelled

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.

Calculated

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.