Altona Correctional Facility, NY
Lead detected, under the action levels
Latest 90th-percentile lead: 1 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
Altona Correctional Facility serves about 650 people through 17 service connections, which makes it a small system under EPA's size classes. It is owned by the state and draws groundwater, in Clinton County, New York. EPA system ID: NY0919482; phone on file: 518-236-7841. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
Against the period ending 2025 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Altona Correctional Facility is 3 ppb across 8 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 1 ppb |
| 2025 | 1 ppb |
| 2024 | 1 ppb |
| 2023 | 1 ppb |
| 2023 | 1 ppb |
| 2022 | 3 ppb |
| 2019 | 1 ppb |
| 2016 | 1 ppb |
Where this result ranks
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. Altona Correctional Facility's 1 ppb sits at the 34th percentile in New York and the 53rd nationally (higher means more lead).
Other water systems in Clinton County
37 other systems share Clinton County; 22 of them have a higher latest lead result than Altona Correctional Facility. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Plattsburgh City | 24,173 | 2.2 ppb |
| Plattsburgh Consolidated Water District | 11,162 | 2.1 ppb |
| Clinton Correctional Facility | 3,001 | 1 ppb |
| Champlain Village | 2,947 | 1 ppb |
| Peru Wd | 2,700 | 9.2 ppb |
| Rouses Point Village Wd | 2,550 | 1.4 ppb |
| Morrisonville Water District | 1,300 | 1.4 ppb |
| Dannemora Village | 1,228 | 1.9 ppb |
| Cadyville Water District | 843 | 2 ppb |
| Lyon Mountain Water Dist | 750 | 1.2 ppb |
Next steps for Altona, NY
Test your own tap with a certified lab first-draw sample; Altona, 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 Altona Correctional Facility whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1600 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. Size matters more than most people expect: small vs large water systems.