IROQUOIS
South Dakota — Community Water System — PWSID: SD4600174
System Information
| PWSID | SD4600174 |
| System Name | IROQUOIS |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Dec 9, 2025 |
Location & Contact
| State | South Dakota |
| City | IROQUOIS |
| ZIP Code | 57353 |
| Address | PO BOX 127 |
| Organization | IROQUOIS |
| Phone | 6055462232 |
Population & Service
| Population Served | 292 |
| Service Connections | 162 |
Drinking Water Violations (9)
This water system has 9 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2005 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 8, 2006 | Lead and Copper Rule |
| Oct 1, 2005 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 8, 2006 | Lead and Copper Rule |
| Oct 1, 2005 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 8, 2006 | Lead and Copper Rule |
| Oct 1, 2005 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 8, 2006 | Lead and Copper Rule |
| Jan 20, 1997 | Feb 19, 1997 | Coliform (TCR) | Other | No | No | — | 5% of samples | — | Archived | Feb 19, 1997 | Total Coliform Rule |
| Dec 1, 1996 | Dec 31, 1996 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Dec 31, 1996 | Total Coliform Rule |
| Mar 7, 1980 | Mar 6, 1983 | Fluoride | MCL | Yes | No | 4 | 4.0 mg/L | — | Archived | Mar 6, 1983 | Inorganic Chemicals |
| Jul 1, 1976 | Jun 30, 1980 | Gross Alpha, Excl. Radon and U | MR | No | No | — | 15 pCi/L | — | Archived | Jun 30, 1980 | Radionuclides and Revised Rad Rule |
| Jul 1, 1976 | Jun 30, 1980 | Combined Radium (-226 and -228) | MR | No | No | — | 5 pCi/L | — | Archived | Jun 30, 1980 | Radionuclides and Revised Rad 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.