Lynnville Water Works, IN
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2026). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Who runs the water here
Lynnville Water Works serves about 1,200 people through 480 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Warrick County, Indiana. EPA system ID: IN5287006; phone on file: 812-217-6156. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
That is down 3.42 ppb from 3.42 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Lynnville Water Works is 5.65 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
| 2025 | 3.42 ppb |
| 2025 | 1.05 ppb |
| 2024 | 5.65 ppb |
| 2021 | 2.73 ppb |
| 2018 | 1.6 ppb |
Where this result ranks
Of the 687 Indiana systems with a lead result, the median latest reading is 1.31 ppb; 6 are over 15 ppb right now and 36 have gone over at some point. Lynnville Water Works's reported as 0 (not detected) sits at the 20th percentile in Indiana and the 28th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Warrick County
6 other systems share Warrick County; 4 of them have a higher latest lead result than Lynnville Water Works. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Indiana American Water - Newburgh | 22,215 | 3 ppb |
| Chandler Water Works Department | 20,120 | 4.87 ppb |
| City Of Boonville | 10,260 | 0 (not detected) |
| Tennyson Water Utility | 4,158 | 0.32 ppb |
| Elberfeld Water Department | 2,122 | 0 (not detected) |
| Indiana American Water - Yankeetown | 1,838 | 2 ppb |
What to do in your house
Look up your address in Lynnville Water Works's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Lynnville Water Works whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1660 ppb (copper action level 1,300 ppb).
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. What a 90th-percentile result does and does not tell you: how to read a lead result. Small systems behave differently: why small systems go over more often.