How does Spring Valley's water compare to the national average?

The USA national average is 151 mg/L. Spring Valley (≈ 180+ mg/L) is 189 mg/L harder than average.

Spring Valley Water Hardness & Quality Report (2026)

Water Hardness

very hard

180+ mg/L

Very Hard

estimated · not lab-verified

Source

reservoir

pH Level

8.5

neutral = 7.0

Lead

0.008 mg/L

✓ Below action level

TDS

1170.8 mg/L

Est. Daily Cost

$0.91

energy & soap waste

Source: See methodology section below · Updated 2026

very hard180+ mg/LVery Hard · 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 Spring Valley, your appliances are currently losing 45% efficiency due to mineral buildup.

Appliance	In Spring Valley	Soft Water City	Efficiency Loss
Kettle	4.7 yrs	8.5 yrs	-45%
Washing Machine	6.6 yrs	12 yrs	-45%
Water Heater	8.3 yrs	15 yrs	-45%

Regional Water Comparison

How Spring Valley compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Spring Valley, Nevada	≈ 180+ mg/L	4.1 ppt	🔴 Very Hard	reservoir
Enterprise, Nevada	≈ 180+ mg/L	2.5 ppt	🔴 Very Hard	reservoir
Summerlin South, Nevada	≈ 180+ mg/L	4.4 ppt	🔴 Very Hard	groundwater
Paradise, Nevada	≈ 120–179 mg/L	3.6 ppt	🟠 Hard	reservoir
Las Vegas, Nevada	≈ 180+ mg/L	400 ppt	🔴 Very Hard	reservoir

National Benchmark

How Spring Valley compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Spring Valley	≈ 180+ mg/L	🔴 High
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Spring Valley's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 1170.8 mg/LpH: 8.5

The Las Vegas Valley Water District (LVVWD) supplies water to Spring Valley, Nevada, an unincorporated community in Clark County within the Las Vegas metropolitan area. Nearly 90% of the water is sourced from Lake Mead, treated at the Lake Mead Water Treatment Plant and other regional facilities operated by LVVWD. The remaining 10% comes from deep groundwater wells accessing the Las Vegas Valley aquifer, used primarily during peak demand from May to October. The service area covers much of the Las Vegas Valley, with blending occurring in some northwest areas.

The Colorado River watershed feeding Lake Mead spans arid regions with mineral-rich geology dominated by Paleozoic carbonate rock formations—limestones and dolomites from the Colorado Plateau—alongside Mesozoic sandstones that dissolve readily, yielding a hard supply high in calcium and magnesium. Groundwater from the Las Vegas Valley aquifer interacts with fractured Paleozoic carbonates and basin-fill sediments in the Spring Mountains and Sheep Range, enhancing mineralization. This geology consistently shapes the water's very hard character across both sources.

Very hard water promotes significant limescale buildup in pipes, water heaters, dishwashers, washing machines, and faucets, reducing efficiency and increasing energy costs. Soap scum is common in showers, and laundry can appear dingy. Regular descaling and use of scale-resistant fixtures are essential; a whole-house water softener is highly recommended. Water is treated with filtration, chlorination disinfection, and fluoridation since 2000. LVVWD complies with lead and copper rules. Bromodichloromethane, a disinfection byproduct, has been detected above health guidelines in past reports. The 2025 Water Quality Summary confirms compliance with primary standards.

Geology & Source: Lake Mead/Colorado River — Paleozoic limestones, dolomites, sandstones from Colorado Plateau; Las Vegas Valley basin-fill alluvial aquifer recharged through fractured Paleozoic carbonates and Tertiary volcanics — both sources yield hard supply

Other Nevada Water Reports

Enterprise

≈ 180+ mg/L

🔴 Very Hard

Summerlin South

≈ 180+ mg/L

🔴 Very Hard

Paradise

≈ 120–179 mg/L

🟠 Hard

Las Vegas

≈ 180+ mg/L

🔴 Very 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 Spring Valley's water safe to drink?

Yes. Spring Valley's water meets all federal safety standards. The hardness is ≈ 180+ mg/L (Very Hard), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Spring Valley?

At ≈ 180+ mg/L (Very Hard), Spring Valley'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 45%.

How does Spring Valley compare to the USA average?

The USA national average is 151 mg/L. Spring Valley (≈ 180+ mg/L) is 189 mg/L above the national average. The softest major city is Scarsdale at just 0.02 mg/L.

Data Sources & Methodology

Water quality data for Spring Valley 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.