Central Arkansas Water
As of October 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.
AR / Little Rock
AR · Tap water records
Little Rock tap water, in plain English
Here is what the EPA's own data shows about tap water in Little Rock. According to EPA SDWIS data retrieved October 2026, Little Rock is served by 4 active community water systems, together reported to serve about 378,397 people.
As of October 2026, EPA records show 34 violations across the community water system(s) serving Little Rock, going back to the earliest EPA record. 17 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.
- 4Community water systems
- ~378,397People served (EPA-reported)
- October 2026EPA records reviewed through
What the EPA has on record, by system
East End Water
- Monitoring Chlorine: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in April 2017. All have since returned to compliance, per EPA records.
Central Arkansas Water Paron
- Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 10 times between April 2015 and April 2017. The EPA record lists a level of 87 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
- Health-based Total Haloacetic Acids (HAA5): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 6 times between July 2015 and January 2017. The EPA record lists a level of 62 UG/L; the limit (MCL) is 60 UG/L. All have since returned to compliance, per EPA records.
- Health-based Long Term 2 Enhanced Surface Water Treatment Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in June 2016. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
- Monitoring Surface Water Treatment Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in February 2018. 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 once in August 2017. 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 9 times between September 2015 and June 2017. 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 2 times between July 2016 and February 2017. 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 October 2012 and October 2013. All have since returned to compliance, per EPA records.
Wye Mountain Water Association
- 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 2012. 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 October 2026. Records cover the EPA's full reporting history for these systems. Verify at EPA ECHO.