Skip to content
TapBuff
ZIP

Forest Park Water Co Plant #3

What EPA’s and New York’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves
67 people
Connections
19
Water source
Groundwater
Based in
Lewisboro (T), NY
County
Westchester
Owner
Private
The 2 ZIP codes it serves

10506, 10576

The short answer

2 results are above the health goal. The worst: Lead, above the health goal. 1 health-based violation since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2022 to 2025.

Copper: EPA’s file records a utility’s copper only when it exceeds the action level. The last here was 2.1 ppm, for the period ending Dec. 31, 2019. None since is on file, so it is not counted as a current finding.

Uranium, nitrate, total trihalomethanes (TTHM), haloacetic acids (HAA5) and arsenic: New York’s yearly summaries per water system, 2020 to 2024, with EPA’s 2012 to 2019 file for earlier years.

Chromium (total) and fluoride: EPA’s compliance monitoring file, samples taken from Dec. 18, 2014 to April 5, 2018. Newer results are in the utility’s annual water quality report.

Above the health goal2

Lead

Comes from pipes, often your own

Above the health goal

14ppb

90th percentile, 2025

In the latest period, 9 in 10 homes sampled were at or below 14 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027, and this result is at or above that. EPA’s health goal for lead is zero.

What handles it

Uranium

Comes from the source

Above the health goal

14.3ppb

Highest yearly average, 2024

Averaged by year, the highest was 14.3 ppb, in 2024: below EPA’s legal limit of 30 ppb, but above its health goal of zero. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 7.3 ppb, in 2018.

What handles it

Below EPA’s limits3

Nitrate

Comes from the source

Below EPA’s limits

2.1ppm

Highest sample; found in 5 of 5

2024 average: 2.0 ppm

The highest sample, in 2022, was 2.1 ppm, below EPA’s legal limit of 10 ppm. In 2024, the latest year on file, it averaged 2.0 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 3.9 ppm, in 2015.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

15.4ppb

Highest yearly average, 2020 to 2022

2022 average: 7.0 ppb

Averaged by year, the highest was 15.4 ppb, in 2020, below EPA’s legal limit of 80 ppb. Its highest single sample was 25 ppb. In 2022, the latest year on file, it averaged 7.0 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 14.3 ppb, in 2015.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

6.8ppb

Highest yearly average, 2020 to 2022

2022 average: 1.0 ppb

Averaged by year, the highest was 6.8 ppb, in 2020, below EPA’s legal limit of 60 ppb. Its highest single sample was 12.3 ppb. In 2022, the latest year on file, it averaged 1.0 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 1.4 ppb, in 2017.

What handles it

No certification claim covers this compound yet.

3 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Chromium (total)
  • Fluoride

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

At the tap, or for the whole house?

Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. How whole-house systems compare.

Filters with those claims on a certifier’s listing

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

Compare five-year costs

The best water filters for lead, ranked

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Lead and Copper RuleRequired information about lead was not given to customers.EPA: Public EducationJan. 1, 2021—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 7 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Uranium, nitrate, total trihalomethanes (TTHM), haloacetic acids (HAA5) and arsenic results here are New York’s own yearly summaries from 2020 on, with EPA’s national file for 2012 to 2019. Chromium (total) and fluoride come from EPA’s file alone, which ends in 2019. Forest Park Water Co Plant #3’s own annual report, which it must send you every year, has newer results for those and the contaminants this page does not show.

  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.

  • What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.

  • Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; New York’s yearly summaries cover 2020 to 2024; EPA’s compliance samples are from Dec. 18, 2014 to April 5, 2018.

Testing your own tap

Forest Park Water Co Plant #3’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab New York certifies.

The 3 labs New York certifies closest to the area Forest Park Water Co Plant #3 serves, 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 11 miles

    Certified for bacteria, nitrate, lead and copper

    (914) 245-3203

  • Westchester Co Labs and Research

    Valhalla, NY · about 12 miles

    Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS

    (914) 231-1768

  • EAS Inc. - Eastern Analytical Services Inc.

    Elmsford, NY · about 15 miles

    Certified for lead and copper, asbestos

    (914) 592-8380

All 161 certified labs for New York

Sources

PWSID NY5903487. Rebuilt from EPA data on Oct. 18, 2026.

Also in Westchester County

All New York utilities

What to do next