Dyersburg 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.
Dyersburg Water Dept at a glance
Dyersburg Water Dept serves about 19,970 people through 8,321 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 groundwater, in Dyer County, Tennessee. EPA system ID: TN0000211. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
Against the period ending 2022 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Dyersburg Water Dept is 7.81 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2022 | 1 ppb |
| 2019 | 7.81 ppb |
| 2016 | 2.3 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. Dyersburg Water Dept's 1 ppb sits at the 66th percentile in Tennessee and the 55th nationally (higher means more lead).
Other water systems in Dyer County
4 other systems share Dyer County; 3 of them have a higher latest lead result than Dyersburg Water Dept. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Newbern Water Dept | 8,098 | 2.5 ppb |
| Northwest Dyersburg U.D. | 3,996 | 1 ppb |
| Dyersburg Suburban C.U.D. | 3,538 | 1.3 ppb |
| Trimble Water System | 776 | 2.69 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Dyersburg, 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 Dyersburg 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. 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.