FLORENCE
South Dakota — Community Water System — PWSID: SD4600128
System Information
| PWSID | SD4600128 |
| System Name | FLORENCE |
| 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 | FLORENCE |
| ZIP Code | 57235 |
| Address | PO BOX 137 |
| Organization | FLORENCE |
| Phone | — |
Population & Service
| Population Served | 337 |
| Service Connections | 151 |
Drinking Water Violations (29)
This water system has 29 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2022 | Sep 30, 2022 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2022 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2022 | Sep 30, 2022 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2022 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2022 | Sep 30, 2022 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2022 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jun 27, 2013 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jul 21, 2015 | Ground Water Rule |
| Jun 27, 2013 | — | Groundwater Rule | TT | Yes | No | — | — | — | Resolved | Jul 21, 2015 | Ground Water Rule |
| Feb 1, 2011 | — | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | No | — | — | — | Resolved | Feb 28, 2011 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Feb 1, 2011 | — | Stage 1 Disinfectants and Disinfection Byproducts Rule | TT | Yes | No | — | — | — | Resolved | Feb 28, 2011 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Sep 13, 2010 | — | Public Notice | Other | No | No | — | — | — | Resolved | Dec 9, 2012 | Public Notice Rule and Revised PN Rule |
| Jul 10, 2010 | — | Groundwater Rule | Other | No | No | — | — | — | Resolved | Jul 15, 2010 | Ground Water Rule |
| Jul 10, 2010 | — | Groundwater Rule | Other | No | No | — | — | — | Resolved | Jul 15, 2010 | Ground Water Rule |
| Jul 1, 2010 | Jul 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2010 | Total Coliform Rule |
| Jul 1, 2010 | Jul 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2010 | Total Coliform Rule |
| Jul 1, 2010 | Jul 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2010 | Total Coliform Rule |
| Jul 1, 2010 | Sep 30, 2010 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2010 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2010 | Sep 30, 2010 | Chlorine | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2010 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| May 1, 2005 | May 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2005 | Total Coliform Rule |
| May 1, 2005 | May 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2005 | Total Coliform Rule |
| May 1, 2005 | May 31, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2005 | Total Coliform Rule |
| Jan 1, 1996 | Sep 22, 1997 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 22, 1997 | Lead and Copper Rule |
| Jan 1, 1996 | Sep 22, 1997 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 22, 1997 | Lead and Copper Rule |
| Jan 1, 1996 | Sep 22, 1997 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 22, 1997 | Lead and Copper 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 |
| Jan 1, 1994 | Jul 27, 1994 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 27, 1994 | Lead and Copper Rule |
| Jan 1, 1994 | Jul 27, 1994 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jul 27, 1994 | Lead and Copper Rule |
| Oct 1, 1993 | Oct 31, 1993 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Oct 31, 1993 | Total Coliform Rule |
| Mar 1, 1993 | Mar 31, 1993 | Coliform (TCR) | MR | No | Yes | — | 5% of samples | — | Archived | Mar 31, 1993 | Total Coliform Rule |
| 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.