NY / Harriman
NY · Tap water records
Harriman tap water, in plain English
Here is what the EPA's own data shows about tap water in Harriman. According to EPA SDWIS data retrieved June 2026, Harriman is served by 2 active community water systems, together reported to serve about 5,325 people.
As of June 2026, EPA records show 78 violations across the community water system(s) serving Harriman, going back to the earliest EPA record. 25 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
Harriman Village
5,000 served · groundwater · PWSID NY3503531 - Health-based PERFLUOROCTANE SULFONIC ACID (PFOS): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in October 2022. The EPA record lists a level of 12.4 NG/L; the limit (MCL) is 10 NG/L. All have since returned to compliance, per EPA records.
- Health-based Combined Uranium: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 10 times between April 2015 and October 2017. The EPA record lists a level of 21.6 PCI/L; the limit (MCL) is 20 PCI/L. All have since returned to compliance, per EPA records.
- Health-based Chloride: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in January 2016. The EPA record lists a level of 272 MG/L; the limit (MCL) is 250 MG/L. All have since returned to compliance, per EPA records.
- Health-based Gross Alpha, Excl. Radon and U: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 5 times between October 2012 and April 2015. The EPA record lists a level of 16 PCI/L; the limit (MCL) is 15 PCI/L. All have since returned to compliance, per EPA records.
- 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 October 2024. 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 3 times in July 2023. All have since returned to compliance, per EPA records.
- Monitoring Chloride: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2016. All have since returned to compliance, per EPA records.
- Monitoring Benzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 5 times in January 2016. All have since returned to compliance, per EPA records.
- Monitoring Groundwater Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in October 2015. All have since returned to compliance, per EPA records.
Castle High Trailer Park
325 served · groundwater · PWSID NY3501336 - Health-based Manganese: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 8 times between October 2021 and October 2025. The EPA record lists a level of 340 UG/L; the limit (MCL) is 300 UG/L. EPA records do not show all of these as returned to compliance.
- Monitoring LEAD AND COPPER RULE REVISIONS: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2025. 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 3 times between January 2025 and June 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 once in April 2025. EPA records do not show all of these as returned to compliance.
- Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between July 2005 and July 2024. All have since returned to compliance, per EPA records.
- Monitoring contaminant code null: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 22 times between December 2016 and June 2024. EPA records do not show all of these as returned to compliance.
- Monitoring Iron: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in July 2022. EPA records do not show all of these as returned to compliance.
- Monitoring Manganese: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in July 2022. EPA records do not show all of these as returned to compliance.
- Monitoring Benzene: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times in July 2022. EPA records do not show all of these as returned to compliance.
- Monitoring Stage 1 Disinfectants and Disinfection Byproducts Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in January 2015. All have since returned to compliance, per EPA records.
- Monitoring Asbestos: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times in January 2013. EPA records do not show all of these as returned to compliance.
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.