ROCKPORT COLONY
South Dakota — Community Water System — PWSID: SD4602014
System Information
| PWSID | SD4602014 |
| System Name | ROCKPORT COLONY |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Inactive |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | May 30, 1990 |
| Last Reported | Dec 9, 2025 |
Location & Contact
| State | South Dakota |
| City | ALEXANDRIA |
| ZIP Code | 57311 |
| Address | BEN WIPF |
| Organization | — |
| Phone | — |
Population & Service
| Population Served | 101 |
| Service Connections | 20 |
Drinking Water Violations (161)
This water system has 161 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 1, 1995 | Dec 31, 1995 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Dec 31, 1995 | Total Coliform Rule |
| Sep 1, 1995 | Sep 30, 1995 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Sep 30, 1995 | Total Coliform Rule |
| Aug 1, 1995 | Aug 31, 1995 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Aug 31, 1995 | Total Coliform Rule |
| Jul 1, 1995 | Jul 31, 1995 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jul 31, 1995 | Total Coliform Rule |
| Jun 1, 1995 | Jun 30, 1995 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jun 30, 1995 | Total Coliform Rule |
| May 1, 1995 | May 31, 1995 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | May 31, 1995 | Total Coliform Rule |
| Apr 1, 1995 | Apr 30, 1995 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Apr 30, 1995 | Total Coliform Rule |
| Feb 1, 1995 | Feb 28, 1995 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Feb 28, 1995 | Total Coliform Rule |
| Jan 1, 1995 | Feb 1, 1996 | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Feb 1, 1996 | Lead and Copper Rule |
| Jan 1, 1995 | Jan 31, 1995 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jan 31, 1995 | Total Coliform Rule |
| Nov 1, 1994 | Nov 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Nov 30, 1994 | Total Coliform Rule |
| Nov 1, 1994 | Nov 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Nov 30, 1994 | Total Coliform Rule |
| Oct 1, 1994 | Oct 31, 1994 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 1994 | Total Coliform Rule |
| Oct 1, 1994 | Oct 31, 1994 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 1994 | Total Coliform Rule |
| Sep 1, 1994 | Sep 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Sep 30, 1994 | Total Coliform Rule |
| Sep 1, 1994 | Sep 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Sep 30, 1994 | Total Coliform Rule |
| Aug 1, 1994 | Aug 31, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Aug 31, 1994 | Total Coliform Rule |
| Aug 1, 1994 | Aug 31, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Aug 31, 1994 | Total Coliform Rule |
| Jul 1, 1994 | Feb 1, 1996 | Lead and Copper Rule | MR | No | No | — | TT | — | Archived | Feb 1, 1996 | Lead and Copper Rule |
| Jul 1, 1994 | Jul 31, 1994 | Other | No | No | — | — | — | Archived | Jul 31, 1994 | Miscellaneous Other Rules | |
| Jul 1, 1994 | Jul 31, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jul 31, 1994 | Total Coliform Rule |
| Jul 1, 1994 | Jul 31, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jul 31, 1994 | Total Coliform Rule |
| Jun 1, 1994 | Jun 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jun 30, 1994 | Total Coliform Rule |
| Jun 1, 1994 | Jun 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jun 30, 1994 | Total Coliform Rule |
| May 7, 1994 | Jul 6, 1994 | Other | No | No | — | — | — | Archived | Jul 6, 1994 | Miscellaneous Other Rules | |
| May 1, 1994 | May 31, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | May 31, 1994 | Total Coliform Rule |
| May 1, 1994 | May 31, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | May 31, 1994 | Total Coliform Rule |
| Apr 1, 1994 | Apr 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Apr 30, 1994 | Total Coliform Rule |
| Apr 1, 1994 | Apr 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Apr 30, 1994 | Total Coliform Rule |
| Mar 1, 1994 | Mar 31, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Mar 31, 1994 | Total Coliform Rule |
| Mar 1, 1994 | Mar 31, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Mar 31, 1994 | Total Coliform Rule |
| Feb 1, 1994 | Feb 28, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Feb 28, 1994 | Total Coliform Rule |
| Feb 1, 1994 | Feb 28, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Feb 28, 1994 | Total Coliform Rule |
| Jan 1, 1994 | Dec 31, 1994 | Trichloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | o-Dichlorobenzene | MR | No | Yes | — | 0.6 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Jan 31, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jan 31, 1994 | Total Coliform Rule |
| Jan 1, 1994 | Jan 31, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jan 31, 1994 | Total Coliform Rule |
| Jan 1, 1994 | Dec 31, 1994 | Toluene | MR | No | Yes | — | 1 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | Trichloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | 1,1,1-Trichloroethane | MR | No | Yes | — | 0.2 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | Toluene | MR | No | Yes | — | 1 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | Styrene | MR | No | Yes | — | 0.1 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | Carbon tetrachloride | MR | No | Yes | — | 0.005 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | 1,2,4-Trichlorobenzene | MR | No | Yes | — | 0.07 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | 1,1-Dichloroethylene | MR | No | Yes | — | 0.007 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | 1,1-Dichloroethylene | MR | No | Yes | — | 0.007 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | 1,2,4-Trichlorobenzene | MR | No | Yes | — | 0.07 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | Styrene | MR | No | Yes | — | 0.1 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
| Jan 1, 1994 | Dec 31, 1994 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Archived | Dec 31, 1994 | Nitrate Rule |
| Jan 1, 1994 | Dec 31, 1994 | Carbon tetrachloride | MR | No | Yes | — | 0.005 mg/L | — | Archived | Dec 31, 1994 | Volatile Organic Chemicals |
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.