Willow Brook Mhp, NY
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2017-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Willow Brook Mhp at a glance
Willow Brook Mhp serves about 40 people through 17 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Chautauqua County, New York. EPA system ID: NY0600899; phone on file: 716-595-3653. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
Against the period ending 2016 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Willow Brook Mhp is 0 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2016 | 0 (not detected) |
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. Willow Brook Mhp's reported as 0 (not detected) sits at the 2nd percentile in New York and the 2nd nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in Chautauqua County
49 other systems share Chautauqua County; 42 of them have a higher latest lead result than Willow Brook Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Jamestown Bpu | 46,712 | 3.2 ppb |
| Dunkirk City | 12,743 | 9.7 ppb |
| Fredonia Village | 9,585 | 6.1 ppb |
| Chautauqua Utility District | 9,000 | 7.6 ppb |
| Westfield Village And Town | 3,890 | 1 ppb |
| Silver Creek Village | 3,100 | 0.27 ppb |
| North Chautauqua County Water District | 3,100 | 1.9 ppb |
| Brocton Portland Water District | 3,086 | 8.7 ppb |
| Carroll (T) Water District | 2,600 | 2.18 ppb |
| Hanover Wd #1 5&20 Slvr Crk To Catt Crk | 2,173 | 4.07 ppb |
Your move
Look up your address in Willow Brook Mhp's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Willow Brook Mhp 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Small systems behave differently: why small systems go over more often.