How does New Iberia's water compare to the national average?

The USA national average is 151 mg/L. New Iberia (≈ 120–179 mg/L) is 1 mg/L softer than average.

New Iberia Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

7.5

neutral = 7.0

Lead

0.003 mg/L

✓ Below action level

TDS

129.2 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 New Iberia, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In New Iberia	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 New Iberia compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ New Iberia, Louisiana	≈ 120–179 mg/L	0 ppt	🟠 Hard	groundwater
Youngsville, Louisiana	≈ 120–179 mg/L	12.9 ppt	🟠 Hard	groundwater
Broussard, Louisiana	≈ 120–179 mg/L	11.4 ppt	🟠 Hard	groundwater
Lafayette, Louisiana	≈ 120–179 mg/L	0 ppt	🟠 Hard	groundwater
Abbeville, Louisiana	≈ 120–179 mg/L	3.7 ppt	🟠 Hard	groundwater

National Benchmark

How New Iberia compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ New Iberia	≈ 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 New Iberia's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 129.2 mg/LpH: 7.5

New Iberia Water System (LAWCO), operated by Louisiana Water Company, provides drinking water to the city of New Iberia and surrounding areas in Iberia Parish, Louisiana. The utility draws from groundwater sources, treated at the New Iberia water treatment plant using air stripping, filtration, softening, and chloramines for disinfection, with lime addition to adjust hardness and remove iron. The system serves multiple communities and meets all EPA standards; the mailing address is Louisiana Water Company, P.O. Box 66396, Baton Rouge, LA 70896.

The supply originates in the Gulf Coastal Plain sedimentary basin of southern Louisiana rather than a surface watershed. Key formations include the unconsolidated sands and clays of the Evangeline Aquifer and overlying Chicot Aquifer, part of the expansive Mississippi Embayment system with Tertiary-age deposits spanning Miocene to Pleistocene epochs. These limestone-influenced sands impart a hard character to the groundwater through natural dissolution of calcium and magnesium minerals during subsurface flow, elevating mineral content without the dilution of surface runoff.

At hard levels, scale buildup occurs in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan. White deposits on fixtures and reduced soap lathering are common signs. Regular vinegar descaling, installing scale inhibitors, or a water softener is recommended to prevent costly repairs. The system scores 100/100 for water quality with no EPA violations; trace levels of perfluorinated chemicals and trichloroacetic acid remain within health guidelines. Lead pipe removal is ongoing; pH is managed via lime addition for corrosion control, with full compliance in copper and lead monitoring.

Geology & Source: Gulf Coastal Plain — Tertiary–Quaternary sands and clays of the Evangeline and Chicot aquifers; Miocene–Pleistocene calcareous sediments dissolve calcium and magnesium, producing a hard groundwater supply

Other Louisiana Water Reports

Youngsville

≈ 120–179 mg/L

🟠 Hard

Broussard

≈ 120–179 mg/L

🟠 Hard

Lafayette

≈ 120–179 mg/L

🟠 Hard

Abbeville

≈ 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 New Iberia's water safe to drink?

Yes. New Iberia'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 New Iberia?

At ≈ 120–179 mg/L (Hard), New Iberia'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 New Iberia compare to the USA average?

The USA national average is 151 mg/L. New Iberia (≈ 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 New Iberia 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.