Troy City Pws, NY
Above the federal action level
Latest 90th-percentile lead: 110 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. In the most recent monitoring period, more than 10% of the sampled homes measured above 15 ppb. Use a filter certified to NSF/ANSI 53 for lead for drinking and cooking now, and test your own tap.
Who runs the water here
Troy City Pws serves about 51,401 people through 13,269 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Rensselaer County, New York. EPA system ID: NY4100050; phone on file: 518-636-3518. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Lead results over time
That is up 99.4 ppb from 10.6 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Troy City Pws is 110 ppb across 17 monitoring periods, 8 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 110 ppb over 15 |
| 2025 | 10.6 ppb over 10 |
| 2025 | 1.29 ppb |
| 2024 | 34.7 ppb over 15 |
| 2024 | 22.9 ppb over 15 |
| 2023 | 35.4 ppb over 15 |
| 2023 | 30.9 ppb over 15 |
| 2022 | 28.3 ppb over 15 |
| 2022 | 16.2 ppb over 15 |
| 2021 | 85.8 ppb over 15 |
| 2020 | 2.5 ppb |
| 2019 | 5.4 ppb |
| 2019 | 6.4 ppb |
| 2018 | 6.3 ppb |
| 2018 | 8 ppb |
| 2016 | 9.8 ppb |
| 2016 | 3.5 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. Troy City Pws's 110 ppb sits at the 100th percentile in New York and the 100th nationally (higher means more lead).
Other water systems in Rensselaer County
33 other systems share Rensselaer County; 0 of them have a higher latest lead result than Troy City Pws. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| East Greenbush General W.D. | 15,843 | 2.3 ppb |
| North Greenbush Consolidated District | 10,226 | 5 ppb |
| Rensselaer City Pws | 9,300 | 6.6 ppb |
| Brunswick Consolidated Water District | 7,050 | 1.12 ppb |
| Hoosick Falls (V) Pws | 4,925 | 1 ppb |
| Castleton Village Pws | 2,413 | 2 ppb |
| Schaghticoke Consolidated Wd #1 | 1,975 | 1 ppb |
| Schodack Consolidated Water District 101 | 1,946 | 2 ppb |
| Nassau (V) Pws | 1,250 | 6.4 ppb |
| Schaghticoke (V) Pws | 1,102 | 1 ppb |
Next steps for Glens Falls, NY
Use a filter certified to NSF/ANSI 53 for lead on the tap you drink and cook from, now, before you test. Then test your own tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Troy City Pws 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. Why sampled homes are the worst-case ones is in the guide to reading the number. Size matters more than most people expect: small vs large water systems.