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Lumberton Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

7.8

neutral = 7.0

Lead

0.005 mg/L

✓ Below action level

TDS

225 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 Lumberton, your appliances are currently losing 20% efficiency due to mineral buildup.

ApplianceIn LumbertonSoft Water CityEfficiency 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 Lumberton compares to its nearest neighbours

CityHardnessPFAS (ppt)RiskSource
Lumberton, North Carolina≈ 120–179 mg/L416.4 ppt🟠 Hardgroundwater
Hope Mills, North Carolina≈ 0–60 mg/L5.2 ppt🟢 Softgroundwater
Fayetteville, North Carolina≈ 0–60 mg/L509.4 ppt🟢 Softriver
Laurinburg, North Carolina≈ 0–60 mg/L0 ppt🟢 Softgroundwater
Fort Bragg, North Carolina≈ 120–179 mg/L198.3 ppt🟠 Hardreservoir

National Benchmark

How Lumberton compares to the USA average

BenchmarkHardnessAppliance Risk
Lumberton≈ 120–179 mg/L🟠 Moderate
USA National Avg151 mg/L🟠 Moderate
Scarsdale Top Rated0.02 mg/L🟢 None

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What Makes Lumberton's Water Unique?

Local geology and source profile

Source: GroundwaterTDS: 225 mg/LpH: 7.8

The City of Lumberton Public Works Department operates the water utility serving approximately 24,116 residents in Robeson County, North Carolina. Water is drawn from the Lumber River at an intake near USGS monitoring site 02134138 and treated at the city's water treatment plant using hypochlorite disinfection. The utility can be contacted at 910-671-3485, 176 Legend Rd., Lumberton, NC 28358; the Environmental Laboratory at 910-671-3858 handles lead testing inquiries. The 2025 Consumer Confidence Report is available via the city's website for full details on annual water quality findings.

The Lumber River watershed spans the Sandhills and Coastal Plain regions, draining into the Pee Dee River system. Underlying geology consists of Tertiary and Quaternary sediments — including Black Creek Formation sands and gravels — with upstream influences from Triassic diabase and Paleozoic metamorphics in the Piedmont. The river's path through limestone-bearing terrains and organic-rich floodplains contributes dissolved calcium and magnesium, yielding a moderately mineralised supply influenced by both alluvial mineral contact and minor carbonate dissolution.

Moderately hard water leads to moderate scale buildup in appliances such as dishwashers, washing machines, and water heaters, reducing efficiency and increasing energy costs over time. Faucets and fixtures may develop visible deposits, requiring periodic cleaning with vinegar solutions. A water softener is recommended for households experiencing these effects to extend appliance life and improve soap efficiency, though not essential for all users. Water quality meets EPA Maximum Contaminant Level Goals overall, with 11 contaminants detected per aggregators, all within health guidelines; past MCL violations have been noted in aggregated records.

Geology & Source: Lumber River Coastal Plain watershed — Quaternary and Tertiary sands, clays, and gravels from the Black Creek and Peedee Formations; carbonate dissolution and alluvial mineral contact produce moderately hard water

Other North Carolina Water Reports

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Frequently Asked Questions

Is Lumberton's water safe to drink?
Yes. Lumberton'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 Lumberton?
At ≈ 120–179 mg/L (Hard), Lumberton'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 Lumberton compare to the USA average?
The USA national average is 151 mg/L. Lumberton (≈ 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 Lumberton 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

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.

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.