Hamilton Village, NY
Lead detected, under the action levels
Latest 90th-percentile lead: 3 ppb (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. 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
Hamilton Village serves about 4,107 people through 873 service connections, which makes it a medium-sized system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Madison County, New York. EPA system ID: NY2602377; phone on file: 315-824-1111. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 2 ppb from 5 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Hamilton Village is 7.8 ppb across 7 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 3 ppb |
| 2024 | 5 ppb |
| 2023 | 4 ppb |
| 2022 | 3.8 ppb |
| 2021 | 7.8 ppb |
| 2020 | 4.6 ppb |
| 2017 | 5.1 ppb |
How Hamilton Village compares
Of the 2,077 New York systems with a lead result, the median latest reading is 1.5 ppb; 17 are over 15 ppb right now and 165 have gone over at some point. Hamilton Village's 3 ppb sits at the 74th percentile in New York and the 82nd nationally (higher means more lead).
Other water systems in Madison County
23 other systems share Madison County; 4 of them have a higher latest lead result than Hamilton Village. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Oneida City | 11,393 | 1 ppb |
| Cazenovia Village | 2,900 | 5 ppb |
| Morrisville State College | 2,620 | 2.9 ppb |
| Morrisville Village | 2,199 | 5 ppb |
| Suburbans Community Mhp | 655 | 1.7 ppb |
| Stockbridge Water District | 600 | - |
| Cazenovia/Nelson Purchase District | 595 | - |
| Deruyter Village | 558 | 1.1 ppb |
| Earlville Village | 545 | 3.3 ppb |
| New Woodstock | 460 | 1.5 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Hamilton, NY 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 Hamilton Village 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. Systems that went over once often dip back under; here is what that means.