RAPID CITY, SD · Pennington County
HIDDEN VALLEY WATER ASSOCIATION INC Water System
Consumer Confidence Report status
HIDDEN VALLEY WATER ASSOCIATION INC 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 HIDDEN VALLEY WATER ASSOCIATION INC.
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)
- SD4600269
- System type
- Community Water System
- Population served
- 27
- Service connections
- 15
- Ownership
- privately owned
- Water source
- groundwater (wells)
HIDDEN VALLEY WATER ASSOCIATION INC is one of 583 community water systems in South Dakota in the 500 or fewer people size category, serving 27 people from groundwater.
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
ArchivedMonitoring, 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)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| July 1, 1976 – June 30, 1980 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| July 1, 1976 – June 30, 1980 | Monitoring, Regular | Combined Radium (-226 and -228) | — | 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 HIDDEN VALLEY WATER ASSOCIATION INC required to publish a Consumer Confidence Report?
- Yes. HIDDEN VALLEY WATER ASSOCIATION INC 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 HIDDEN VALLEY WATER ASSOCIATION INC’s next Consumer Confidence Report due?
- HIDDEN VALLEY WATER ASSOCIATION INC’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does HIDDEN VALLEY WATER ASSOCIATION INC have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for HIDDEN VALLEY WATER ASSOCIATION INC.
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
HIDDEN VALLEY WATER ASSOCIATION INC
6054157388
RAPID CITY, SD 57702