Obion Water Dept, TN
Lead detected, under the action levels
Latest 90th-percentile lead: 1.5 ppb (monitoring period 2023-2025). 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.
About Obion Water Dept
Obion Water Dept serves about 1,615 people through 665 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Obion County, Tennessee. EPA system ID: TN0000524; phone on file: 731-536-6242. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2022 (0.7 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Obion Water Dept is 1.5 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.5 ppb |
| 2022 | 0.7 ppb |
| 2019 | 0.3 ppb |
| 2016 | 1.27 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. Obion Water Dept's 1.5 ppb sits at the 83rd percentile in Tennessee and the 64th nationally (higher means more lead).
Nearby utilities
9 other systems share Obion County; 1 of them has a higher latest lead result than Obion Water Dept. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Union City Water Dept | 16,180 | 1.5 ppb |
| South Fulton Water System | 4,043 | 0.9 ppb |
| Elbridge Water Association | 3,239 | 1 ppb |
| Troy Water System | 2,096 | 0.5 ppb |
| Kenton Water Dept | 1,492 | 0.9 ppb |
| Hornbeak Utility District | 1,416 | 1 ppb |
| Samburg Utility District | 758 | 1 ppb |
| Reelfoot Water Association | 644 | 1 ppb |
| Mason Hall Development Corp | 211 | 2.6 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Obion, 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 Obion Water Dept 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. 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.