Lawrenceburg Water Hardness & Quality Report (2026)
Water Hardness
12.7 grains per gallon
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
$0.58
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
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 29% efficiency due to mineral buildup.
| Appliance | In Lawrenceburg | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 2.4 yrs | 8.5 yrs | -72% |
| Washing Machine | 5.6 yrs | 12 yrs | -53% |
| Water Heater | 6.9 yrs | 15 yrs | -54% |
Regional Water Comparison
How Lawrenceburg compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Lawrenceburg, Tennessee | 217.5 mg/L | 7.3 ppt | 🔴 Very Hard | reservoir |
| Columbia, Tennessee | 198 mg/L | 6.7 ppt | 🔴 Very Hard | reservoir |
| East Florence, Alabama | 132.5 mg/L | 6.7 ppt | 🟠 Hard | reservoir |
| Florence, Alabama | 139.5 mg/L | 6.9 ppt | 🟠 Hard | reservoir |
| Athens, Alabama | 91 mg/L | 5.2 ppt | 🟡 Moderately Hard | reservoir |
National Benchmark
How Lawrenceburg compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lawrenceburg | 217.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Lawrenceburg's Water Unique?
Local geology and source profile
Lawrenceburg, Tennessee, in Lawrence County — the Lawrence County seat adjacent to Pulaski and Ethridge on the Tennessee Highland Rim — receives its water from the City of Lawrenceburg Water Department, drawing from the Shoal Creek watershed through the south-central Tennessee distribution.
The very hard 217.5 mg/L hardness and TDS of 553.9 mg/L reflect the Lawrence County supply's very hard Highland Rim character — the Mississippian St. Louis Limestone and Warsaw Formation are highly calcareous formations in the Tennessee Highland Rim karst plateau, and Shoal Creek acquires substantial dissolved mineral content from its extensive limestone drainage (compare Pulaski TN: 213/542 in Giles County comparable; Ethridge TN: 221/565 in Lawrence County comparable; Lawrenceburg consistent very hard from the same Lawrence County Shoal Creek Mississippian calcareous supply). The Shoal Creek watershed — Mississippian St. Louis Limestone (highly calcareous — primary hardness contributor), Mississippian Warsaw Formation (calcareous — secondary contributor), and Quaternary Shoal Creek alluvium (calcareous — TDS contributor).
At 217.5 mg/L with TDS 554, Lawrenceburg's water is very hard — a water softener is strongly recommended to protect plumbing and appliances. The PFAS level of 7.3 ppt warrants a certified drinking water filter. Review the City of Lawrenceburg's annual water quality report.
Geology & Source: Lawrenceburg in Lawrence County draws from the Lawrenceburg Water on the Shoal Creek watershed (Lawrence County, south-central Tennessee) — the Tennessee Highland Rim at Lawrence County draws from Mississippian St. Louis Limestone (highly calcareous) and Mississippian Warsaw Formation (calcareous) — Tennessee Lawrence County Shoal Creek Mississippian calcareous supply produces very hard water at 217.5 mg/L with TDS 553.9 mg/L.