CSP-HIDDEN VALLEY
South Dakota — Transient Non-Community — PWSID: SD4600049
System Information
| PWSID | SD4600049 |
| System Name | CSP-HIDDEN VALLEY |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | State |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | South Dakota |
| City | CUSTER |
| ZIP Code | 57730 |
| Address | 13329 US HWY 16A |
| Organization | CSP-HIDDEN VALLEY |
| Phone | 6059104408 |
Population & Service
| Population Served | 45 |
| Service Connections | 14 |
Drinking Water Violations (71)
This water system has 71 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2005 | — | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2005 | — | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2005 | — | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2005 | — | |
| Feb 11, 1999 | Mar 10, 1999 | Other | No | No | — | TT | — | Archived | Mar 10, 1999 | — | |
| Feb 10, 1999 | Mar 9, 1999 | Other | No | No | — | TT | — | Archived | Mar 9, 1999 | — | |
| Feb 9, 1999 | Mar 8, 1999 | Other | No | No | — | TT | — | Archived | Mar 8, 1999 | — | |
| Jul 1, 1998 | Dec 31, 1998 | MR | No | No | — | TT | — | Resolved | Dec 31, 1998 | — | |
| Jul 1, 1998 | Dec 31, 1998 | MR | No | No | — | TT | — | Resolved | Dec 31, 1998 | — | |
| Jul 1, 1998 | Dec 31, 1998 | MR | No | No | — | TT | — | Resolved | Dec 31, 1998 | — | |
| Feb 1, 1998 | Feb 28, 1998 | MR | No | Yes | — | 5% of samples | — | Archived | Feb 28, 1998 | — | |
| Feb 1, 1998 | Feb 28, 1998 | MR | No | Yes | — | 5% of samples | — | Archived | Feb 28, 1998 | — | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | Yes | — | 5% of samples | — | Archived | Nov 30, 1996 | — | |
| Nov 1, 1996 | Nov 30, 1996 | MR | No | Yes | — | 5% of samples | — | Archived | Nov 30, 1996 | — | |
| Sep 13, 1994 | Oct 12, 1994 | Other | No | No | — | — | — | Archived | Oct 12, 1994 | — | |
| Jul 1, 1994 | Jul 31, 1994 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 1994 | — | |
| Jul 1, 1994 | Jul 31, 1994 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 1994 | — | |
| Jul 1, 1993 | Jul 31, 1993 | MR | No | Yes | — | 5% of samples | — | Archived | Jul 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1993 | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.