Water Health Check Report

Nashville, TN

Metro Nashville Water Services · Surface water source · Cumberland River — two intake points serving K.R. Harrington and Omohundro water treatment plants. Seasonal turbidity variation from upstream agricultural and urban runoff. Surface water chemistry drives moderate disinfection byproduct formation in summer months.

68

Fair

0 EPA violations
5 above EWG guideline

Score methodology →
EPA · TN1950009UCMR5 PFAS data included780,000 people servedLast updated Dec 2024
EPA SDWIS · December 2024EPA UCMR5 · June 2024

Fair — with 5 concerns

Metro Nashville Water Services meets all federal legal limits but 5 contaminants exceed EWG health guidelines. Lead levels within limits at treatment plant

Lead levels within limits at treatment plantAll contaminants within federal legal limits

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Lead—source matters

Lead in tap water comes from household plumbing, not the source water or treatment plant. Nashville water leaves the treatment plant lead-free. Risk depends on your building's internal plumbing—highest in homes built before 1986, when lead solder was common. A NSF/ANSI 53 certified pitcher or under-sink filter removes lead at point of use.

Contaminants tested

11 total · 5 above EWG guideline
ContaminantLevelStatus
1.8 ppt
Above guideline
44.6 ppb
Above guideline
26.3 ppb
Above guideline
Arsenic

CAS 7440-38-2

0.40 ppb
Above guideline
Nitrate

CAS 14797-55-8

0.31 ppm
Above guideline
0.90 ppt
Within limits
Fluoride

CAS 16984-48-8

0.70 ppm
Within limits
Copper

CAS 7440-50-8

0.19 ppm
Within limits
Barium

CAS 7440-39-3

0.07 ppm
Within limits
Lead

CAS 7439-92-1

2.4 ppb
Within limits
Chlorine (residual)

CAS 7782-50-5

1.0 ppm
Within limits
LegendWithin limitsAbove EWG guidelineAbove EPA limitNot detectedSource: EPA SDWIS · UCMR5 · EWG Health Guidelines

Filter recommendation

5 contaminants above guidelines. Here's what removes them.

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Water wellness · Drawn Health

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Data sources

EPA UCMR5 (PFAS + lithium)·June 2024·One-time programme 2023–2025
EPA SDWIS compliance data·December 2024·Annual reporting cycle

Status flags compare detected levels against both EPA legal limits and EWG health-based guidelines—which are stricter and science-derived, independent of political feasibility.