SENECA
South Dakota - Community Water System - PWSID: SD4600292
System Information
| PWSID | SD4600292 |
| System Name | SENECA |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | South Dakota |
| City | SENECA |
| ZIP Code | 57473 |
| Address | 504 LINN STREET |
| Organization | SENECA |
| Phone | 6054366236 |
Population & Service
| Population Served | 25 |
| Service Connections | 20 |
Drinking Water Violations (40)
This water system has 40 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb 1, 2018 | - | TT | Yes | No | - | - | - | Resolved | Jun 11, 2018 | - | |
| Feb 1, 2018 | - | TT | Yes | No | - | - | - | Resolved | Jun 11, 2018 | - | |
| Feb 1, 2016 | - | TT | Yes | No | - | - | - | Resolved | May 19, 2016 | - | |
| Feb 1, 2016 | - | TT | Yes | No | - | - | - | Resolved | May 19, 2016 | - | |
| Feb 1, 2014 | - | TT | Yes | No | - | - | - | Resolved | Jun 30, 2014 | - | |
| Feb 1, 2014 | - | TT | Yes | No | - | - | - | Resolved | Jun 30, 2014 | - | |
| Sep 14, 2011 | - | Other | No | No | - | - | - | Resolved | Jan 24, 2014 | - | |
| Feb 1, 2011 | - | TT | Yes | No | - | - | - | Resolved | Mar 8, 2011 | - | |
| Feb 1, 2011 | - | TT | Yes | No | - | - | - | Resolved | Mar 8, 2011 | - | |
| Aug 9, 2010 | - | Other | No | No | - | - | - | Resolved | Jun 23, 2011 | - | |
| Aug 9, 2010 | - | Other | No | No | - | - | - | Resolved | Jun 23, 2011 | - | |
| Aug 1, 2010 | Aug 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2010 | - | |
| Aug 1, 2010 | Aug 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2010 | - | |
| Aug 1, 2010 | Aug 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2010 | - | |
| Aug 1, 2010 | Aug 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2010 | - | |
| Aug 1, 2010 | Aug 31, 2010 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 30, 2010 | - | |
| Jan 1, 1995 | Nov 13, 1995 | MR | No | No | - | TT | - | Resolved | Nov 13, 1995 | - | |
| Jan 1, 1995 | Nov 13, 1995 | MR | No | No | - | TT | - | Resolved | Nov 13, 1995 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Jul 1, 1994 | Nov 13, 1995 | MR | No | No | - | TT | - | Resolved | Nov 13, 1995 | - | |
| Jul 1, 1994 | Nov 13, 1995 | MR | No | No | - | TT | - | Resolved | Nov 13, 1995 | - | |
| Jan 1, 1994 | Nov 13, 1995 | MR | No | No | - | TT | - | Resolved | Nov 13, 1995 | - | |
| Jan 1, 1994 | Nov 13, 1995 | MR | No | No | - | TT | - | Resolved | Nov 13, 1995 | - | |
| Dec 16, 1991 | Jan 15, 1992 | Other | No | No | - | - | - | Archived | Jan 15, 1992 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1991 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1991 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1991 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MR | No | No | - | 5% of samples | - | Archived | Sep 30, 1991 | - | |
| Sep 1, 1991 | Sep 30, 1991 | MR | No | No | - | 5% of samples | - | Archived | Sep 30, 1991 | - | |
| Jul 1, 1976 | Jun 30, 1980 | MR | No | No | - | 15 pCi/L | - | Archived | Jun 30, 1980 | - | |
| Jul 1, 1976 | Jun 30, 1980 | MR | No | No | - | 5 pCi/L | - | Archived | Jun 30, 1980 | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - | |
| - | - | - | No | No | - | - | - | - | - | - |
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.