MO / Crystal City
MO · Tap water records
Crystal City tap water, in plain English
Here is what the EPA's own data shows about tap water in Crystal City. According to EPA SDWIS data retrieved June 2026, Crystal City is served by 2 active community water systems, together reported to serve about 4,833 people.
As of June 2026, EPA records show 11 violations across the community water system(s) serving Crystal City, going back to the earliest EPA record. 10 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
Crystal City Pws
4,733 served · groundwater · PWSID MO6010198 - Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 10 times between April 2022 and October 2022. The EPA record lists a level of 90 UG/L; the limit (MCL) is 80 UG/L. 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 April 2020. All have since returned to compliance, per EPA records.
Manderly Mhp
100 served · groundwater · PWSID MO6048616 As of June 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.
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.