Estill Springs Water Dept, TN
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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 Estill Springs Water Dept
Estill Springs Water Dept serves about 4,317 people through 1,784 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 surface water, in Franklin County, Tennessee. EPA system ID: TN0000232. Ask the utility on your bill for your address in their service line inventory.
Estill Springs Water Dept's lead record
Against the period ending 2022 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Estill Springs Water Dept is 1.06 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2022 | 1 ppb |
| 2019 | 0.5 ppb |
| 2016 | 1.06 ppb |
How Estill Springs Water Dept compares
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. Estill Springs Water Dept's 1 ppb sits at the 42nd percentile in Tennessee and the 55th nationally (higher means more lead).
Neighbouring systems
7 other systems share Franklin County; 2 of them have a higher latest lead result than Estill Springs Water Dept. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Winchester Water System | 25,683 | 1 ppb |
| Center Grove-Winchester Springs | 6,979 | 1 ppb |
| Sewanee Utility District | 5,970 | 1 ppb |
| Decherd Water Dept | 4,809 | 7.86 ppb |
| Cowan B.P.U. | 2,550 | 1 ppb |
| Huntland Water System | 1,808 | 1 ppb |
| Belvidere Rural U.D. | 1,771 | 2.03 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Estill Springs, 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 Estill Springs 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. 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.