RIMROCK RIDGE WATER ASSOCIATION
South Dakota — Community Water System — PWSID: SD4602084
System Information
| PWSID | SD4602084 |
| System Name | RIMROCK RIDGE WATER ASSOCIATION |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jun 27, 1991 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | South Dakota |
| City | RAPID CITY |
| ZIP Code | 57709 |
| Address | PO BOX 9141 |
| Organization | RIMROCK RIDGE WATER ASSOCIATION |
| Phone | 6054312678 |
Population & Service
| Population Served | 35 |
| Service Connections | 16 |
Drinking Water Violations (99)
This water system has 99 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 1, 1995 | Aug 31, 1995 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 1995 | — | |
| Aug 1, 1995 | Aug 31, 1995 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 1995 | — | |
| Aug 1, 1995 | Aug 31, 1995 | MCL | Yes | No | — | 5% of samples | — | Resolved | Aug 31, 1995 | — | |
| Jan 9, 1995 | Feb 8, 1995 | Other | No | No | — | — | — | Archived | Feb 8, 1995 | — | |
| Jan 1, 1995 | Dec 31, 1995 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1995 | — | |
| Nov 12, 1994 | Dec 11, 1994 | Other | No | No | — | — | — | Archived | Dec 11, 1994 | — | |
| Nov 1, 1994 | Nov 30, 1994 | MR | No | No | — | 5% of samples | — | Archived | Nov 30, 1994 | — | |
| Nov 1, 1994 | Nov 30, 1994 | MR | No | No | — | 5% of samples | — | Archived | Nov 30, 1994 | — | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | Yes | — | 5% of samples | — | Archived | Oct 31, 1994 | — | |
| Oct 1, 1994 | Oct 31, 1994 | MR | No | Yes | — | 5% of samples | — | Archived | Oct 31, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MR | No | Yes | — | 5% of samples | — | Archived | Sep 30, 1994 | — | |
| Sep 1, 1994 | Sep 30, 1994 | MR | No | Yes | — | 5% of samples | — | Archived | Sep 30, 1994 | — | |
| Jul 1, 1994 | Jul 31, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1994 | — | |
| Jul 1, 1994 | Jul 31, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1994 | — | |
| Jul 1, 1994 | Jul 31, 1994 | Other | No | No | — | — | — | Archived | Jul 31, 1994 | — | |
| Jul 1, 1994 | Jul 31, 1994 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 1994 | — | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1993 | — | |
| Sep 1, 1993 | Sep 30, 1993 | MR | No | No | — | 5% of samples | — | Archived | Sep 30, 1993 | — | |
| Jul 1, 1993 | Feb 18, 1994 | MR | No | No | — | TT | — | Resolved | Feb 18, 1994 | — | |
| Jul 1, 1993 | Feb 18, 1994 | MR | No | No | — | TT | — | Resolved | Feb 18, 1994 | — | |
| Jul 1, 1993 | Feb 18, 1994 | MR | No | No | — | TT | — | Resolved | Feb 18, 1994 | — | |
| Jul 1, 1993 | Feb 18, 1994 | MR | No | No | — | TT | — | Resolved | Feb 18, 1994 | — | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 1993 | — | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 1993 | — | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 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 | — | 0.005 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 | — | 0.7 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 10 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 | — | 0.075 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 | — | 0.1 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 | — | 0.07 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Dec 31, 1993 | MR | No | Yes | — | 0.07 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 | — | 0.6 mg/L | — | Resolved | Dec 31, 1993 | — | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | — | 5% of samples | — | Archived | Jan 31, 1993 | — | |
| Jan 1, 1993 | Jan 31, 1993 | MR | No | Yes | — | 5% of samples | — | Archived | Jan 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.