Is Jefferson Valley-Yorktown, NY tap water safe?
The short answer
1 of the 2 utilities serving Jefferson Valley-Yorktown has a result above a legal limit or action level, or a health-based violation since 2016, in EPA’s and New York’s records: Yorktown Consold. Water Dist.#1.
Yorktown Consold. Water Dist.#1, which serves the most people here, has 1 result above the legal limit, 1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: Haloacetic acids (HAA5) at 37 ppb, above the legal limit.
A town can be served by more than one utility, and some homes are on private wells. The name on your water bill tells you which is yours, and your ZIP code narrows it down. They are listed by how many people each serves in Jefferson Valley-Yorktown’s ZIP codes, from EPA’s estimates.
- Open report
Yorktown Consold. Water Dist.#1
New York · serves 36,000 people · about 6,600 in Jefferson Valley-Yorktown
1 result above the legal limit, 1 result above EPA’s new limit, which takes effect in 2029 and 2 results above the health goal. The worst: Haloacetic acids (HAA5) at 37 ppb, above the legal limit.
4 health-based violations since 2016
- Open report
Kitchawan Water District
New York · serves 150 people · under 100 in Jefferson Valley-Yorktown
1 result above the health goal. The worst: Lead at 1.0 ppb, above the health goal.
No health-based violations since 2016
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in Yorktown Consold. Water Dist.#1’s water, which serves the most people here. Another utility’s report names what handles its own results.
Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money
ZeroWater 10 Cup Pitcher (ZP-010)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53checked Oct. 4, 2026
Certified for: PFOA, Lead
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOA, Lead
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOA, Lead
Water testing near Jefferson Valley-Yorktown
The 3 labs New York certifies closest to Jefferson Valley-Yorktown, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
Yorktown Medical Laboratory Inc.
Yorktown Heights, NY · about 2 miles
Certified for bacteria, nitrate, lead and copper
Westchester Co Labs and Research
Valhalla, NY · about 16 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
EAS Inc. - Eastern Analytical Services Inc.
Elmsford, NY · about 17 miles
Certified for lead and copper, asbestos
Which ZIP codes are in Jefferson Valley-Yorktown: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: NYS Environmental Laboratory Approval Program (ELAP), drinking water labs, as listed in TNI LAMS; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Jefferson Valley-Yorktown
Other towns in Westchester County with a page of their own.
What to do next
- Read Yorktown Consold. Water Dist.#1’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- About Haloacetic acids (HAA5)What it does to health, where it comes from, and the certification claim that addresses it.About Haloacetic acids (HAA5)
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water