Milan Arsenal #1, TN
Exceeded the action level in the past
Latest 90th-percentile lead: 2.9 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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Milan Arsenal #1 at a glance
Milan Arsenal #1 serves about 215 people through 19 service connections, which makes it a very small system under EPA's size classes. It is federally owned and draws groundwater, in Gibson County, Tennessee. EPA system ID: TN0000798; phone on file: 731-686-6675. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is up 1.4 ppb from 1.5 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Milan Arsenal #1 is 15.85 ppb across 7 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2.9 ppb |
| 2022 | 1.5 ppb |
| 2020 | 1.2 ppb |
| 2019 | 2.6 ppb |
| 2019 | 15.85 ppb over 15 |
| 2019 | 4.5 ppb |
| 2016 | 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. Milan Arsenal #1's 2.9 ppb sits at the 92nd percentile in Tennessee and the 80th nationally (higher means more lead).
Other water systems in Gibson County
12 other systems share Gibson County; 2 of them have a higher latest lead result than Milan Arsenal #1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Milan Water Dept | 10,932 | 4.1 ppb |
| Humboldt Utilities-Water Dept | 9,908 | 0.9 ppb |
| Trenton Water System | 5,155 | 0.5 ppb |
| Gibson Co Muni Water Dist #4 | 3,386 | 0.7 ppb |
| Gibson Co Muni Water Dist #5 | 2,864 | 0.4 ppb |
| Dyer Water Dept | 2,783 | 1.4 ppb |
| Gibson Co Muni Water Dist #1 | 2,433 | 0.3 ppb |
| Gibson Co Muni Water Dist #3 | 1,465 | 0.7 ppb |
| Rutherford Water Works | 1,407 | 2.3 ppb |
| Bradford Water System | 1,276 | 0.3 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Milan, 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 Milan Arsenal #1 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. Why an old exceedance still matters: over the limit before, under it now.