How does Harvey's water compare to the national average?

The USA national average is 151 mg/L. Harvey (≈ 0–59 mg/L) is 121 mg/L softer than average.

Harvey Water Hardness & Quality Report (2026)

Water Hardness

soft

~0–59 mg/L

Soft

estimated · not lab-verified

Source

river

pH Level

7.4

neutral = 7.0

Lead

0.003 mg/L

✓ Below action level

TDS

105.8 mg/L

Est. Daily Cost

$0.08

energy & soap waste

Source: See methodology section below · Updated 2026

soft~0–59 mg/LSoft · 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 Harvey, your appliances are currently losing 4% efficiency due to mineral buildup.

Appliance	In Harvey	Soft Water City	Efficiency Loss
Kettle	8.2 yrs	8.5 yrs	-4%
Washing Machine	11.5 yrs	12 yrs	-4%
Water Heater	14.4 yrs	15 yrs	-4%

Regional Water Comparison

How Harvey compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Harvey, Louisiana	≈ 0–59 mg/L	7 ppt	🟢 Soft	river
Marrero, Louisiana	≈ 120–179 mg/L	8.5 ppt	🟠 Hard	river
Gretna, Louisiana	≈ 120–179 mg/L	5.1 ppt	🟠 Hard	river
Terrytown, Louisiana	103 mg/L	9.8 ppt	🟡 Moderately Hard	river
Woodmere, Louisiana	≈ 120–179 mg/L	12.3 ppt	🟠 Hard	river

National Benchmark

How Harvey compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Harvey	≈ 0–59 mg/L	🟢 None
USA National Avg	151 mg/L	🟠 Moderate
Scarsdale Top Rated	0.02 mg/L	🟢 None

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What Makes Harvey's Water Unique?

Local geology and source profile

Source: RiverTDS: 105.8 mg/LpH: 7.4

The Jefferson Parish Water Department serves approximately 40,000 residents on the West Bank of Jefferson Parish, including Harvey (ZIP 70058). Primary sources are groundwater from the Chicot and Evangeline aquifers, supplemented by surface water from the Mississippi River via the Harvey Canal. Treatment occurs at the Woodland Water Treatment Plant and the Westbank Treatment Plant, employing conventional filtration, chlorination, and corrosion control.

The supply is influenced by the Mississippi River watershed, with groundwater recharged from river infiltration and precipitation across the deltaic plain. The Chicot Aquifer (Pleistocene sands) and Evangeline Aquifer (Miocene sands and clays) feature high-permeability unconsolidated sediments low in calcium- and magnesium-bearing rocks. Water moves quickly through these sands without prolonged rock contact, yielding a soft supply with minimal dissolved minerals.

Soft water minimizes scale buildup in pipes, water heaters, and appliances, reducing maintenance needs and extending equipment life. Benefits include better soap lathering, less detergent use, and no spotting on dishes or fixtures. No water softener is needed; however, low hardness can increase the risk of lead or copper leaching from older pipes — phosphate-based corrosion control should be monitored. Harvey's water scored 67/100 per uswatergrade.com, with 2 elevated contaminants noted. Treatment includes screening, coagulation, sedimentation, filtration, chlorine disinfection, and fluoride addition; pH is typically 7.5–8.5 post-treatment.

Geology & Source: Chicot (Pleistocene) and Evangeline (Miocene) aquifers in the Mississippi River Deltaic Plain — high-permeability unconsolidated sands and gravels with minimal limestone contact; rapid recharge and river infiltration produce characteristically soft

Other Louisiana Water Reports

Marrero

≈ 120–179 mg/L

🟠 Hard

Gretna

≈ 120–179 mg/L

🟠 Hard

Terrytown

103 mg/L

🟡 Moderately Hard

Woodmere

≈ 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 Harvey's water safe to drink?

Yes. Harvey's water meets all federal safety standards. The hardness is ≈ 0–59 mg/L (Soft), which is safe to drink. High hardness affects appliances and taste, but poses no health risk.

Do I need a water softener in Harvey?

Harvey's water is soft at ≈ 0–59 mg/L. A water softener is generally not necessary, though a carbon filter can improve taste and remove any remaining chlorine.

How does Harvey compare to the USA average?

The USA national average is 151 mg/L. Harvey (≈ 0–59 mg/L) is 121 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 Harvey 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.