NY / Mt. Kisco
NY · Tap water records
Mt. Kisco tap water, in plain English
Here is what the EPA's own data shows about tap water in Mt. Kisco. According to EPA SDWIS data retrieved June 2026, Mt. Kisco is served by 2 active community water systems, together reported to serve about 680 people.
As of June 2026, EPA records show 112 violations across the community water system(s) serving Mt. Kisco, going back to the earliest EPA record. 100 of these are classified by the EPA as health-based (a contaminant recorded above the limit the EPA tracks); the rest are monitoring or reporting violations. Each is listed by system below, with its status.
What the EPA has on record, by system
Maple Hill Condominium W.S.
380 served · groundwater · PWSID NY3921640 - Monitoring Lead and Copper Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 1994. All have since returned to compliance, per EPA records.
Yeshiva Farm Settlement
300 served · surface water · PWSID NY5903150 - Health-based PERFLUOROCTANE SULFONIC ACID (PFOS): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 67 times between January 2021 and July 2025. The EPA record lists a level of 0.0000211 MG/L; the limit (MCL) is 0.00001 MG/L. EPA records do not show all of these as returned to compliance.
- Health-based PERFLUOROCTANOIC ACID (PFOA): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 33 times between January 2021 and July 2025. The EPA record lists a level of 0.0000178 MG/L; the limit (MCL) is 0.00001 MG/L. EPA records do not show all of these as returned to compliance.
- Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between April 2024 and July 2025. EPA records do not show all of these as returned to compliance.
- Monitoring Revised Total Coliform Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in July 2023. EPA records do not show all of these as returned to compliance.
- Monitoring Lead and Copper Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between June 2010 and January 2014. All have since returned to compliance, per EPA records.
- Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between December 2007 and January 2009. All have since returned to compliance, per EPA records.
What this means
A health-based violation means a contaminant was recorded above the limit the EPA tracks for it. A monitoring or reporting violation means a required test or report was late or missed — not that a contaminant was measured above a limit. “Returned to compliance” means the EPA recorded the issue as resolved.
This page summarizes the EPA's own records and does not assess whether your water is safe to drink. For the most current details, you can verify every record directly with the EPA, and contact your water system with questions.
Source: U.S. EPA Envirofacts SDWIS, retrieved June 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.