Public Water Partners

BLACK HAWK, SD · Pennington County

OWANKA RURAL WATER SYSTEM Water System

Consumer Confidence Report status

OWANKA RURAL WATER SYSTEM must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for OWANKA RURAL WATER SYSTEM.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace South Dakota’s official records. Always confirm current status with South Dakota before making decisions based on this information.

System facts

System ID (PWSID)
SD4602310
System type
Community Water System
Population served
52
Service connections
23
Ownership
privately owned
Water source
groundwater (wells)

OWANKA RURAL WATER SYSTEM is one of 583 community water systems in South Dakota in the 500 or fewer people size category, serving 52 people from groundwater.

As of August 1, 2026, its federal record holds 1 entry in 2017, all of which EPA lists as closed. Nothing has been added since 2017.

None of the 1 are monitoring or reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset; these involve water-quality, treatment, or public-notice findings instead. The record involves the Radionuclides and Revised Rad Rule.

Violation history

  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2017 – June 30, 2017

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is OWANKA RURAL WATER SYSTEM required to publish a Consumer Confidence Report?

Yes. OWANKA RURAL WATER SYSTEM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is OWANKA RURAL WATER SYSTEM’s next Consumer Confidence Report due?

OWANKA RURAL WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does OWANKA RURAL WATER SYSTEM have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for OWANKA RURAL WATER SYSTEM.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

OWANKA RURAL WATER SYSTEM

6057864366

BLACK HAWK, SD 57718