Oswego City, NY
Lead detected, under the action levels
Latest 90th-percentile lead: 3 ppb (monitoring period 2025-2027). 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.
About Oswego City
Oswego City serves about 29,400 people through 8,200 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 Oswego County, New York. EPA system ID: NY3704361; phone on file: 315-342-8140. They can tell you what your service line is made of and whether they pay to replace it.
Every lead result on file
Against the period ending 2022 (2.7 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Oswego City is 4.1 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2027 | 3 ppb |
| 2022 | 2.7 ppb |
| 2019 | 4.1 ppb |
| 2016 | 2.8 ppb |
How Oswego City 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. Oswego City's 3 ppb sits at the 75th percentile in New York and the 83rd nationally (higher means more lead).
Other water systems in Oswego County
40 other systems share Oswego County; 7 of them have a higher latest lead result than Oswego City. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Fulton City | 16,600 | 3 ppb |
| Scriba Wd (Oswego) | 9,044 | 2 ppb |
| Richland Town Pws | 3,950 | 1.7 ppb |
| Pulaski Village | 2,398 | 1.1 ppb |
| Phoenix Village | 2,138 | 1.2 ppb |
| Mexico Village | 2,100 | 1.2 ppb |
| Hannibal Town Water District #2 | 2,000 | 2 ppb |
| Sandy Creek/Lacona Joint Waterworks | 1,469 | 2.5 ppb |
| Sandy Creek Town Wd #1 & #3 | 1,464 | 1.1 ppb |
| Cleveland Village | 1,463 | 1.5 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Oswego, 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 Oswego City 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. Systems that went over once often dip back under; here is what that means.