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

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

Carthage Water Hardness & Quality Report (2026)

Water Hardness

hard

~120–179 mg/L

Hard

estimated · not lab-verified

Source

groundwater

pH Level

7.9

neutral = 7.0

Lead

0.007 mg/L

✓ Below action level

TDS

203 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 Carthage, your appliances are currently losing 20% efficiency due to mineral buildup.

Appliance	In Carthage	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 Carthage compares to its nearest neighbours

City	Hardness	Risk	Source
▶ Carthage, Missouri	≈ 120–179 mg/L	🟠 Hard	groundwater
Webb City, Missouri	≈ 120–179 mg/L	🟠 Hard	river
Joplin, Missouri	≈ 180+ mg/L	🔴 Very Hard	river
Neosho, Missouri	≈ 120–179 mg/L	🟠 Hard	river
Pittsburg, Kansas	≈ 180+ mg/L	🔴 Very Hard	groundwater

National Benchmark

How Carthage compares to the USA average

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

Local geology and source profile

Source: GroundwaterTDS: 203 mg/LpH: 7.9

Carthage Public Water Supply (PWS ID MO5010142), managed by the City of Carthage Water Department and CWEP (Carthage Water & Electric Plant), provides water to Jasper County, Missouri. While specific aquifer or reservoir names are detailed in annual Consumer Confidence Reports from the Missouri Department of Natural Resources (DNR), the primary source is groundwater drawn from the Springfield Plateau region within the Ozark Plateaus aquifer system. This area is known for its karst topography and Paleozoic carbonate formations, including Mississippian-age limestones such as the Warsaw Formation. Treatment facilities are rigorously monitored for compliance, and detailed testing data can be accessed through the DNR's Drinking Water Watch.

The groundwater's journey through the region's geology dictates its mineral content. Fractured limestones and dolomites, dating back to the Mississippian and Pennsylvanian periods, readily dissolve as water percolates through them. These Paleozoic rock layers, including the Warsaw and Burlington Limestones, are rich in calcium and magnesium. This natural geological process, occurring within the Springfield Plateau Aquifer, is the reason for the water's characteristically hard nature, imparting a significant mineral content to the supply.

Homeowners often notice the effects of this hard water, such as scale buildup within pipes, water heaters, dishwashers, and washing machines. This accumulation not only reduces the efficiency and lifespan of these appliances but also leads to common issues like soap scum, visible spotting on dishes after washing, and potentially dry skin and hair. To combat these effects, regular appliance maintenance, including deliming and using vinegar rinses, can help. For a more comprehensive solution, installing a water softener is recommended to exchange hardness minerals for sodium, thereby protecting plumbing and enhancing cleaning performance. CWEP reports confirm excellent compliance with EPA standards, ensuring the water's safety.

Geology & Source: Southwest Missouri karst; Paleozoic limestone and dolomite (Mississippian/Pennsylvanian) from Warsaw and Burlington formations; Springfield Plateau Aquifer; dissolved calcium and magnesium cause hardness.

Other Missouri Water Reports

Webb City

≈ 120–179 mg/L

🟠 Hard

Joplin

≈ 180+ mg/L

🔴 Very Hard

Neosho

≈ 120–179 mg/L

🟠 Hard

Pittsburg

≈ 180+ mg/L

🔴 Very 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 Carthage's water safe to drink?

Yes. Carthage'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 Carthage?

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

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