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Franklin, TN · 185,695 people served · EPA data 2021–2026

Tap water quality in Franklin, Tennessee

Franklin's water systems logged 3 health-based EPA violations in 2021–2026, most recently in 2023 — a modest record, with tthm the issue found. For context, Tennessee's systems average 1.8 health-based violations each.

C+Fair
Franklin water grade: C+
Fair — our A–F grade from this city's EPA compliance record, relative to Tennessee and the nation. How we grade →
Health-based violations, 2021–20263
Tthm3
Franklin Water Dept77,222 served
H.B.& T.S. Utility District40,094 served
Milcrofton Utility District38,032 served
Mallory Valley U.D.30,347 served
Tennessee quality rank#11 / 51 (87.6/100)
Tennessee avg hardness130 PPM (hard)
Want to know what's actually in your Franklin water?

Averages describe states, not your faucet. A certified home water test screens for lead, nitrates, bacteria and dozens of other contaminants — the same categories EPA regulates.

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Franklin tap water FAQ

Is tap water safe to drink in Franklin?

Franklin's systems logged 3 health-based violations in 2021–2026, most commonly tthm. A violation is a red flag for a period of time, not a permanent condition — your utility's current Consumer Confidence Report shows today's status, and a certified home test shows what's at your tap.

Who supplies Franklin's water?

Franklin Water Dept (serving about 77,222 people); H.B.& T.S. Utility District (serving about 40,094 people); Milcrofton Utility District (serving about 38,032 people); Mallory Valley U.D. (serving about 30,347 people). Data: EPA Safe Drinking Water Information System, July 2026.

How hard is the water in Franklin?

City-level hardness isn't published in a single federal dataset, but Tennessee averages 130 PPM — "hard" on the USGS scale. Your utility's water quality report lists Franklin's exact hardness, or a $10 test strip tells you in a minute. If it comes back over 120 PPM, see our water softener guidance in the purification calculator.

Do I need a water filter in Franklin?

With 3 health-based violations on record in 2021–2026, a certified filter is reasonable insurance here: reverse osmosis ($150–$1,300 installed, Angi 2026) covers lead, nitrates and PFAS at the tap. Test first ($50–$200) so you buy for what's actually present.

Want to know what's actually in your Franklin water?

Averages describe states, not your faucet. A certified home water test screens for lead, nitrates, bacteria and dozens of other contaminants — the same categories EPA regulates.

Test your water at home

We may earn a commission if you request quotes through this link. It costs you nothing and never affects the data we publish.