Carmel Wd 4, NY
Lead detected, under the action levels
Latest 90th-percentile lead: 4 ppb (monitoring period 2021-2023). 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
Carmel Wd 4 serves about 450 people through 177 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Putnam County, New York. EPA system ID: NY3905675; phone on file: 845-628-1500. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Carmel Wd 4's lead record
That is up 2.2 ppb from 1.8 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Carmel Wd 4 is 4 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 4 ppb |
| 2022 | 1.8 ppb |
How Carmel Wd 4 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. Carmel Wd 4's 4 ppb sits at the 81st percentile in New York and the 87th nationally (higher means more lead).
Nearby utilities
97 other systems share Putnam County; 33 of them have a higher latest lead result than Carmel Wd 4. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Carmel Wd 2 | 5,000 | 6.9 ppb |
| Cold Spring Village | 2,666 | 1.7 ppb |
| Brewster Village | 2,162 | 7.9 ppb |
| Continental Village Wd | 1,509 | 4 ppb |
| Mount Ebo Ws | 1,500 | 2.1 ppb |
| Carmel Wd 3 | 1,350 | 0 (not detected) |
| Brewster Heights | 1,350 | 1.5 ppb |
| Watchtower Bible Tract Society | 1,251 | 0.4 ppb |
| Carmel Wd 8 | 1,000 | 1 ppb |
| Hunters Glen Condominium Ws | 875 | 1.5 ppb |
Next steps for Mahopac, NY
Test your own tap with a certified lab first-draw sample; Mahopac, 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 Carmel Wd 4 whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 3500 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. The lead result guide covers how utilities pick the homes they sample. The action level is dropping - the 10 ppb rule from 2027.