TapWaterMap

PA / Carlisle

PA · Tap water records

Carlisle tap water, in plain English

Here is what the EPA's own data shows about tap water in Carlisle. According to EPA SDWIS data retrieved June 2026, Carlisle is served by 9 active community water systems, together reported to serve about 40,392 people.

As of June 2026, EPA records show 935 violations across the community water system(s) serving Carlisle, going back to the earliest EPA record. 14 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

Carlisle Water Trmt Plt

26,000 served · surface water · PWSID PA7210002

N Middleton Water Auth

8,455 served · surface water · PWSID PA7210049

Middlesex Twp Muni Auth

3,527 served · groundwater · PWSID PA7210063

Us Army Garrison

1,700 served · groundwater · PWSID PA7210010

Rolling Hills Estates

175 served · groundwater · PWSID PA7210013

Southampton Manor Mhp

160 served · groundwater · PWSID PA7210066

Stoneworth Apts Wtp

150 served · groundwater · PWSID PA5100145

Audubon Park

145 served · groundwater · PWSID PA7670121

Creek View Mobile Home Commun

80 served · groundwater · PWSID PA7210001

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.