Tennessee Ridge Water System, TN
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2026-2028). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Tennessee Ridge Water System at a glance
Tennessee Ridge Water System serves about 4,169 people through 1,527 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Houston County, Tennessee. EPA system ID: TN0000698; phone on file: 931-721-3385. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Tennessee Ridge Water System's lead record
Against the period ending 2025 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Tennessee Ridge Water System is 11.1 ppb across 9 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 1 ppb |
| 2025 | 1 ppb |
| 2022 | 1 ppb |
| 2021 | 1 ppb |
| 2020 | 1 ppb |
| 2019 | 0.5 ppb |
| 2019 | 1.5 ppb |
| 2019 | 11.1 ppb over 10 |
| 2016 | 1.25 ppb |
Against other Tennessee systems
Of the 453 Tennessee systems with a lead result, the median latest reading is 1 ppb; 0 are over 15 ppb right now and 10 have gone over at some point. Tennessee Ridge Water System's 1 ppb sits at the 41st percentile in Tennessee and the 55th nationally (higher means more lead).
Nearby utilities
1 other system shares Houston County; 0 of them have a higher latest lead result than Tennessee Ridge Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Erin Water Department | 8,168 | 1 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Tennessee Ridge, TN may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Tennessee Ridge Water System whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1510 ppb (copper action level 1,300 ppb).
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.