Hamilton Water Department, IN
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2024-2026). 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
Hamilton Water Department serves about 2,675 people through 1,070 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 groundwater, in Steuben County, Indiana. EPA system ID: IN5276023; phone on file: 260-294-3628. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
The highest 90th-percentile result EPA holds for Hamilton Water Department is 0 ppb across 1 monitoring period, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 0 (not detected) |
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. Hamilton Water Department's reported as 0 (not detected) sits at the 26th percentile in Indiana and the 32nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Steuben County
14 other systems share Steuben County; 9 of them have a higher latest lead result than Hamilton Water Department. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Angola Water Department | 9,340 | 0 (not detected) |
| Fremont Water Department | 2,138 | 2.3 ppb |
| Ashley Water Department | 983 | 2.3 ppb |
| Orland Water Works | 530 | 1.27 ppb |
| Hudson Water Works | 518 | 2 ppb |
| Holiday Woods Recreational Park | 200 | 2.4 ppb |
| Caps Mobile Home Park | 182 | 4.4 ppb |
| Jimmerson Shores Co-Op | 120 | 0 (not detected) |
| Golden Acres Mobile Home Park | 112 | 0 (not detected) |
| Or-An Trailer Court | 55 | 0 (not detected) |
What to do in your house
Look up your address in Hamilton Water Department'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 Hamilton Water Department 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. A zero today does not rule out a jump later - the rules are tightening in 2027.