Laguardo Utility District, TN
Lead detected, under the action levels
Latest 90th-percentile lead: 0.4 ppb (monitoring period 2026-2028). 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.
Who runs the water here
Laguardo Utility District serves about 16,175 people through 5,991 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 Wilson County, Tennessee. EPA system ID: TN0000394; phone on file: 615-444-3378. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Every lead result on file
Against the period ending 2025 (0.5 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Laguardo Utility District is 1.7 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 0.4 ppb |
| 2025 | 0.5 ppb |
| 2022 | 1 ppb |
| 2019 | 0.5 ppb |
| 2019 | 1.03 ppb |
| 2018 | 0.5 ppb |
| 2016 | 1.55 ppb |
| 2016 | 1.7 ppb |
How Laguardo Utility District 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. Laguardo Utility District's 0.4 ppb sits at the 11th percentile in Tennessee and the 42nd nationally (higher means more lead).
Other water systems in Wilson County
6 other systems share Wilson County; 5 of them have a higher latest lead result than Laguardo Utility District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| West Wilson Utility District | 86,978 | 1 ppb |
| Lebanon Water System | 60,669 | 0.7 ppb |
| Wilson Co Water & Wastewater | 22,680 | 1 ppb |
| Gladeville Utility District | 19,813 | 7.46 ppb |
| Watertown Water System | 1,944 | 1 ppb |
| Venue @ 109 | 1,890 | 0.4 ppb |
Next steps for Lebanon, TN
Test your own tap with a certified lab first-draw sample; Lebanon, 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 Laguardo 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. The lead result guide covers how utilities pick the homes they sample. Size matters more than most people expect: small vs large water systems.