Dunlap Water System, TN
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2025-2025). 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 Dunlap Water System
Dunlap Water System serves about 9,782 people through 3,691 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 Sequatchie County, Tennessee. EPA system ID: TN0000205; phone on file: 423-718-3435. 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 2025 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Dunlap Water System is 10 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2025 | 1 ppb |
| 2024 | 1 ppb |
| 2024 | 1 ppb |
| 2022 | 1.11 ppb |
| 2019 | 10 ppb |
| 2016 | 1.4 ppb |
Where this result ranks
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. Dunlap Water System's 1 ppb sits at the 56th percentile in Tennessee and the 55th nationally (higher means more lead).
Other water systems in Sequatchie County
2 other systems share Sequatchie County; 0 of them have a higher latest lead result than Dunlap Water System. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cagle-Fredonia U.D. | 3,363 | 1 ppb |
| Lone Oak Utility District | 644 | 1 ppb |
Next steps for Dunlap, TN
Test your own tap with a certified lab first-draw sample; Dunlap, 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 Dunlap 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. The lead result guide covers how utilities pick the homes they sample. The action level is dropping - the 10 ppb rule from 2027.