Here is what the EPA's own data shows about tap water in Waldo. According to EPA SDWIS data retrieved October 2026, Waldo is served by 2 active community water systems, together reported to serve about 3,506 people.
As of October 2026, EPA records show 35 violations across the community water system(s) serving Waldo, going back to the earliest EPA record. 32 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.
Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 25 times between January 2019 and July 2024. The EPA record lists a level of 120 UG/L; the limit (MCL) is 80 UG/L. All have since returned to compliance, per EPA records.
Health-based Total Haloacetic Acids (HAA5): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 4 times between January 2019 and October 2019. The EPA record lists a level of 66 UG/L; the limit (MCL) is 60 UG/L. All have since returned to compliance, per EPA records.
Waldo Waterworks
1,630 served · groundwater · PWSID AR0000112
Health-based Coliform (TCR): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 3 times between April 2003 and July 2003. The EPA record for these does not include a measured level. 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 2 times between August 2013 and October 2019. All have since returned to compliance, per EPA records.
Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in January 2001. 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.