Cornwall-On-Hudson, NY
Lead detected, under the action levels
Latest 90th-percentile lead: 1 ppb (monitoring period 2023-2025). 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.
Cornwall-On-Hudson at a glance
Cornwall-On-Hudson serves about 9,700 people through 2,671 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 surface water, in Orange County, New York. EPA system ID: NY3503526; phone on file: 845-534-4200. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Cornwall-On-Hudson's lead record
Against the period ending 2022 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Cornwall-On-Hudson is 2.4 ppb across 6 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1 ppb |
| 2022 | 1 ppb |
| 2021 | 2.4 ppb |
| 2020 | 1.9 ppb |
| 2019 | 1.5 ppb |
| 2019 | 1.9 ppb |
Against other New York systems
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. Cornwall-On-Hudson's 1 ppb sits at the 38th percentile in New York and the 55th nationally (higher means more lead).
Neighbouring systems
129 other systems share Orange County; 85 of them have a higher latest lead result than Cornwall-On-Hudson. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Kiryas Joel | 51,623 | 9 ppb |
| Middletown City | 30,000 | 1 ppb |
| Newburgh City | 29,000 | 1.5 ppb |
| New Windsor Consolidated Wd | 25,667 | 0 (not detected) |
| Newburgh Consolidated Wd | 22,282 | 1.5 ppb |
| Wallkill Consolidated Wd | 18,450 | 1.97 ppb |
| Monroe Village | 12,000 | 3 ppb |
| Woodbury Cons. W.D. | 10,845 | 8.5 ppb |
| Port Jervis City | 9,000 | 3.04 ppb |
| U.S.M.A. - Lusk System | 8,000 | 10 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Cornwall-On-Hudson, 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 Cornwall-On-Hudson 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.