Lawrenceburg Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

reservoir

pH Level

8.4

neutral = 7.0

Lead

0.008 mg/L

✓ Below action level

TDS

553.9 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 Lawrenceburg, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Lawrenceburg	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 Lawrenceburg compares to its nearest neighbours

City	Hardness	PFAS (ppt)	Risk	Source
▶ Lawrenceburg, Tennessee	≈ 120–179 mg/L	0 ppt	🟠 Hard	reservoir
Columbia, Tennessee	198 mg/L	3.2 ppt	🔴 Very Hard	reservoir
East Florence, Alabama	≈ 120–179 mg/L	6.7 ppt	🟠 Hard	reservoir
Florence, Alabama	≈ 120–179 mg/L	125.4 ppt	🟠 Hard	reservoir
Athens, Alabama	≈ 120–179 mg/L	202.1 ppt	🟠 Hard	reservoir

National Benchmark

How Lawrenceburg compares to the USA average

Benchmark	Hardness	Appliance Risk
▶ Lawrenceburg	≈ 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 Lawrenceburg's Water Unique?

Local geology and source profile

Source: ReservoirTDS: 553.9 mg/LpH: 8.4

Lawrenceburg Utility Systems provides water to over 21,000 residents in Lawrenceburg, Tennessee. The utility draws from two main surface sources: Shoal Creek and Hope Spring. These waters are treated using conventional methods, including hypochlorite disinfection, before being sent to homes and businesses. The Tennessee Department of Environment and Conservation oversees the system, which regularly publishes Consumer Confidence Reports detailing water quality.

The water originates in the Highland Rim watershed, an area rich with Paleozoic limestone and dolomite formations. These Ordovician and Silurian age carbonate rocks are known to dissolve, releasing calcium and magnesium into the water. This geological characteristic, common across the Cumberland Plateau region and central Tennessee, gives the local supply its moderately hard quality.

Homeowners in Lawrenceburg might notice some mineral buildup on faucets, shower doors, and inside pipes. Appliances like water heaters and dishwashers could become less efficient and require more frequent cleaning due to scale. While not strictly necessary for health, many residents find that installing a water softener helps reduce these mineral deposits and prolongs the life of their appliances. Importantly, Lawrenceburg's drinking water meets all federal health standards, with recent tests showing no exceedances for lead or copper.

Geology & Source: Highland Rim limestone and dolomite; Paleozoic carbonate bedrock contributes moderate hardness

Other Tennessee Water Reports

Columbia

198 mg/L

🔴 Very Hard

East Florence

≈ 120–179 mg/L

🟠 Hard

Florence

≈ 120–179 mg/L

🟠 Hard

Athens

≈ 120–179 mg/L

🟠 Hard

Report an Issue

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 Lawrenceburg's water safe to drink?

Yes. Lawrenceburg'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 Lawrenceburg?

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

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