NH / Loudon
NH · Tap water records
Loudon tap water, in plain English
Here is what the EPA's own data shows about tap water in Loudon. According to EPA SDWIS data retrieved June 2026, Loudon is served by 4 active community water systems, together reported to serve about 808 people.
As of June 2026, EPA records show 57 violations across the community water system(s) serving Loudon, going back to the earliest EPA record. 28 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
Freedom Hill/Pine Ridge Est
370 served · groundwater · PWSID NH1403030 - Health-based Arsenic: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 22 times between April 2022 and October 2023. The EPA record for these does not include a measured level. EPA records do not show all of these as returned to compliance.
- Health-based Groundwater Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 3 times between August 2015 and July 2023. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
- Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 7 times between February 2007 and September 2023. 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 4 times between July 2008 and July 2011. All have since returned to compliance, per EPA records.
Villages At Loudon
250 served · groundwater · PWSID NH1402020 - 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 in July 2011. All have since returned to compliance, per EPA records.
- Monitoring E. COLI: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in June 2010. All have since returned to compliance, per EPA records.
Kos Manufactured Housing Cmnty
137 served · groundwater · PWSID NH1403010 - Health-based Arsenic: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in October 2015. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
- Monitoring Revised Total Coliform Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2017 and November 2023. All have since returned to compliance, per EPA records.
- Monitoring Arsenic: 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.
Presidential Pines/Lower
51 served · groundwater · PWSID NH1403040 - Health-based Lead and Copper Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times between August 2009 and December 2009. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
- Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 7 times between July 2003 and February 2012. 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 2 times between January 2003 and July 2009. 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 once in October 2008. 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.