Halls Water System, TN
Lead detected, under the action levels
Latest 90th-percentile lead: 0.8 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.
Who runs the water here
Halls Water System serves about 5,287 people through 2,212 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 Lauderdale County, Tennessee. EPA system ID: TN0000279; phone on file: 731-836-7379. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2025 (1.7 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Halls Water System is 2.4 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 0.8 ppb |
| 2025 | 1.7 ppb |
| 2022 | 2.4 ppb |
| 2019 | 1.67 ppb |
| 2016 | 1 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. Halls Water System's 0.8 ppb sits at the 20th percentile in Tennessee and the 48th nationally (higher means more lead).
Nearby utilities
5 other systems share Lauderdale County; 4 of them have a higher latest lead result than Halls Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lauderdale Co Water System | 9,092 | 2.59 ppb |
| Ripley Water System | 8,030 | 1 ppb |
| West Tn State Penitentiary | 3,250 | 1.1 ppb |
| Henning Water Department | 1,071 | 0.4 ppb |
| Gates Water Department | 670 | 1.4 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Halls, 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 Halls Water System whether it covers that cost before hiring anyone - many utilities now do.
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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.