GFP 5-C/TWIN LAKES RECREATION AREA
South Dakota — Transient Non-Community — PWSID: SD4600826
System Information
| PWSID | SD4600826 |
| System Name | GFP 5-C/TWIN LAKES RECREATION AREA |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Inactive |
| Owner Type | State |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 28, 1982 |
| Last Reported | Dec 9, 2025 |
Location & Contact
| State | South Dakota |
| City | MADISON |
| ZIP Code | 57042 |
| Address | GEORGE FLANNERY |
| Organization | — |
| Phone | 605-256-3613 |
Population & Service
| Population Served | 70 |
| Service Connections | 1 |
Drinking Water Violations (7)
This water system has 7 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, 1996 | Dec 31, 1996 | Nitrite | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 1996 | Nitrate Rule |
| Aug 1, 1995 | Aug 31, 1995 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Aug 31, 1995 | Total Coliform Rule |
| Sep 1, 1994 | Sep 30, 1994 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Sep 30, 1994 | Total Coliform Rule |
| Jun 1, 1993 | Jun 30, 1993 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jun 30, 1993 | Total Coliform Rule |
| Nov 10, 1992 | Dec 9, 1992 | Other | No | No | — | — | — | Archived | Dec 9, 1992 | Miscellaneous Other Rules | |
| Jul 1, 1992 | Jul 31, 1992 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Jul 31, 1992 | Total Coliform Rule |
| Jun 1, 1992 | Jun 30, 1992 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jun 30, 1992 | Total Coliform Rule |
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.