Public Water Partners

RAPID CITY, SD · Pennington County

RAPID CITY Water System

Consumer Confidence Report status

RAPID CITY 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 RAPID CITY.

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)
SD4600406
System type
Community Water System
Population served
72,009
Service connections
23,171
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

RAPID CITY is the second largest community water system in South Dakota, serving 72,009 people from surface water.

As of August 1, 2026, its federal record holds 2 entries in 1976, all of which EPA lists as closed. Nothing has been added since 1976.

All 2 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Radionuclides and Revised Rad Rule.

Violation history

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    July 1, 1976 – June 30, 1980

    Archived

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    July 1, 1976 – June 30, 1980

    Archived

Archived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is RAPID CITY required to publish a Consumer Confidence Report?

Yes. RAPID CITY 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 RAPID CITY’s next Consumer Confidence Report due?

RAPID CITY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does RAPID CITY have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for RAPID CITY.

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

RAPID CITY

6053944162

RAPID CITY, SD 57701