Cumberland Utility District, TN
Lead detected, under the action levels
Latest 90th-percentile lead: 0.3 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 Cumberland Utility District
Cumberland Utility District serves about 14,085 people through 5,796 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Roane County, Tennessee. EPA system ID: TN0000531. Ask the utility on your bill for your address in their service line inventory.
Cumberland Utility District's lead record
That is down 1.2 ppb from 1.5 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Cumberland Utility District is 1.86 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0.3 ppb |
| 2024 | 1.5 ppb |
| 2023 | 1 ppb |
| 2023 | 1 ppb |
| 2019 | 0.5 ppb |
| 2016 | 1.86 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. Cumberland Utility District's 0.3 ppb sits at the 8th percentile in Tennessee and the 42nd nationally (higher means more lead).
Nearby utilities
6 other systems share Roane County; 6 of them have a higher latest lead result than Cumberland Utility District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Harriman Utility Board | 16,653 | 1 ppb |
| Rockwood Water, Sewer & Gas | 11,412 | 1 ppb |
| Kingston Water System | 11,392 | 4.3 ppb |
| Oliver Springs Water Board | 5,361 | 1 ppb |
| Roane Central Utility District | 5,317 | 1 ppb |
| Watts Bar East U.D. | 4,280 | 1 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Harriman, 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 Cumberland Utility District 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Systems that went over once often dip back under; here is what that means.