Does Parker, SD tap water have any EPA-reported violations?

As of June 2026, EPA SDWIS records show 4 violation(s) across the community water systems serving Parker, of which 2 are classified by the EPA as health-based. Most older violations have returned to compliance; see the per-system list.

Where does Parker, SD tap water come from?

Parker is served by 2 active community water system(s). Their primary sources, per EPA records, are: surface water, groundwater.

SD / Parker

SD · Tap water records

Parker tap water, in plain English

Here is what the EPA's own data shows about tap water in Parker. According to EPA SDWIS data retrieved June 2026, Parker is served by 2 active community water systems, together reported to serve about 5,275 people.

As of June 2026, EPA records show 4 violations across the community water system(s) serving Parker, going back to the earliest EPA record. 2 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.

2

Community water systems
~5,275

People served (EPA-reported)
June 2026

EPA records reviewed through

What the EPA has on record, by system

Tm Rural Water District

4,250 served · surface water · PWSID SD4600999

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 July 2003. All have since returned to compliance, per EPA records.

Parker

1,025 served · groundwater · PWSID SD4600235

Health-based Stage 1 Disinfectants and Disinfection Byproducts Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times between April 2006 and February 2010. The EPA record for these does not include a measured level. 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 July 2007. 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.