Dykeer Water Co., NY
Exceeded the action level in the past
Latest 90th-percentile lead: 3 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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Who runs the water here
Dykeer Water Co. serves about 480 people through 120 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws surface water, in Westchester County, New York. EPA system ID: NY5920065; phone on file: 516-459-0999. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is up 2 ppb from 1 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Dykeer Water Co. is 40 ppb across 9 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2026 | 3 ppb |
| 2025 | 1 ppb |
| 2024 | 2 ppb |
| 2024 | 2 ppb |
| 2023 | 40 ppb over 15 |
| 2023 | 1.7 ppb |
| 2022 | 4 ppb |
| 2019 | 2.34 ppb |
| 2016 | 2 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. Dykeer Water Co.'s 3 ppb sits at the 73rd percentile in New York and the 82nd nationally (higher means more lead).
Other water systems in Westchester County
89 other systems share Westchester County; 17 of them have a higher latest lead result than Dykeer Water Co.. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Yonkers City | 211,569 | 7.14 ppb |
| Veolia Water New York, Inc. Rd-1 | 146,732 | 12.2 ppb |
| Mount Vernon Water Department | 73,893 | 7.12 ppb |
| Westchester Joint Water Works | 59,629 | 3 ppb |
| White Plains City | 59,559 | 1.25 ppb |
| Veolia Water New York, Inc. Rd-2 | 57,301 | 2 ppb |
| Greenburgh Consolidated Wd #1 | 43,312 | 1.29 ppb |
| Yorktown Consold. Water Dist.#1 | 36,000 | 1.2 ppb |
| Ossining Water Department | 30,000 | 3 ppb |
| Cortlandt Consolidated Wd | 28,369 | 1.4 ppb |
Next steps for Merrick, NY
Test your own tap with a certified lab first-draw sample; Merrick, 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 Dykeer Water Co. 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. Why an old exceedance still matters: over the limit before, under it now.