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Lead service lines in Larchmont, NY

Search 2,829 service line records published by 1 water utility for Larchmont.

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Service line status in Larchmont

189Lead
6.7%
0Galvanized requiring replacement
0.0%
1,729Lead status unknown
61.1%
899Non-lead
31.8%
12Not classified
0.4%

Counts are records in the utilities' published inventories (not people or buildings). One property can have more than one service line record.

PFAS in Larchmont drinking water

Westchester Joint Water Works PWSID NY5903435

PFOA (highest result)
Not detected (below the 4 ppt reporting level)
PFOS (highest result)
Not detected (below the 4 ppt reporting level)
Other PFAS detected
none
PFAS detected
0 of 29 tested
Sampled
10 sample event(s), 2 sampling point(s), 2025-02-05 to 2025-11-19

Lead service line data on this page: Westchester Joint Water Works.

Other tested water systems that list Larchmont in their service area

These may or may not serve your address.

UCMR 5 is a one-time EPA monitoring program, not a compliance determination. The values shown are the highest single sample result at any of the system's sampling points; one result above 4.0 ppt does not mean the system violates the PFAS rule, which is judged on running annual averages under separate compliance monitoring. Results describe the public water system, not an individual home.

In April 2024 EPA set enforceable limits (MCLs) of 4.0 ppt each for PFOA and PFOS, plus 10 ppt for PFHxS, PFNA and HFPO-DA (GenX) and a Hazard Index for mixtures, with compliance based on a running annual average at each sampling point and due in 2029 (EPA ↗). In May 2026 EPA proposed letting systems request two more years for PFOA/PFOS (to April 2031) and rescinding the PFHxS, PFNA, GenX and Hazard Index limits (EPA: extension proposal ↗ · EPA: rescission proposal ↗). These are proposals, not final rules, as of the date this page was built.

Source: EPA UCMR 5 final occurrence data (EPA page last updated 2026-08-28; samples collected January 2023 – December 2025) ↗. All PFAS results nationwide →

Data sources

Streets with the most lead or GRR records

StreetLeadGalvanized requiring replacementLead status unknownNon-lead
Myrtle Blvd1604722
N Chatsworth Ave1503825
Murray Ave1504012
Edgewood Ave1203720
Weaver St905736
Forest Ave705720
Harmon Dr602211
Echo Ln60134
Valley Rd60266
Briarcliff Rd601010
Acorn Ln4050
Maplewood St4082
Vine Rd40279
Palmer Ave403317
W Brookside Dr30144

What to do next

  1. Confirm with your utility. Inventories change as lines are inspected and replaced. The utility's official map and customer service line are the authoritative source.
  2. If your status is unknown, many utilities ask customers to report what they see where the water pipe enters the building. EPA's Protect Your Tap guide explains how to check.
  3. Consider testing. EPA: “Since you cannot see, taste, or smell lead dissolved in water, testing is the only sure way of telling whether there are harmful quantities of lead in your drinking water.” Your utility or state health department can point you to certified laboratories.
  4. Use cold water. EPA: “Use only cold water for drinking, cooking and making baby formula. Remember, boiling water does not remove lead from water.”
  5. Filters. EPA: “If you use a filter, make sure you use a filter certified to remove lead.” See EPA's consumer tool for filters certified to reduce lead.
Disclaimer: Information is copied from the utility's published service line inventory and may be incomplete, out of date, or contain errors. It is not a substitute for water testing and does not describe interior plumbing. Contact your water utility for the official status of your service line. Health information is limited to quotations from EPA and CDC.