SEBASTIAN LAKE UTILITY OPERATING COMPANY
Missouri — Community Water System — PWSID: AR0000511
System Information
| PWSID | AR0000511 |
| System Name | SEBASTIAN LAKE UTILITY OPERATING COMPANY |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 06 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 29, 1979 |
| Last Reported | Feb 18, 2026 |
Location & Contact
| State | Missouri |
| City | DES PERES |
| ZIP Code | 63131 |
| Address | 1630 DES PERES RD, SUITE 140 |
| Organization | STEPHENS, KARL |
| Phone | — |
Population & Service
| Population Served | 298 |
| Service Connections | 120 |
Drinking Water Violations (42)
This water system has 42 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, 2023 | Mar 31, 2023 | MCL | Yes | No | 81 UG/L | 0.080 mg/L | 80 | Resolved | Mar 31, 2023 | — | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 81 UG/L | 0.080 mg/L | 80 | Resolved | Mar 31, 2023 | — | |
| Jan 1, 2023 | Mar 31, 2023 | MCL | Yes | No | 81 UG/L | 0.080 mg/L | 80 | Resolved | Mar 31, 2023 | — | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | 81 UG/L | 0.080 mg/L | 80 | Resolved | Dec 31, 2022 | — | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | 81 UG/L | 0.080 mg/L | 80 | Resolved | Dec 31, 2022 | — | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | 81 UG/L | 0.080 mg/L | 80 | Resolved | Dec 31, 2022 | — | |
| Oct 1, 2022 | Dec 31, 2022 | MCL | Yes | No | 81 UG/L | 0.080 mg/L | 80 | Resolved | Dec 31, 2022 | — | |
| Jun 1, 2015 | Jun 30, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2015 | — | |
| Jun 1, 2015 | Jun 30, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2015 | — | |
| Jun 1, 2015 | Jun 30, 2015 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2015 | — | |
| Jul 1, 2007 | — | Other | No | No | — | — | — | Resolved | Apr 17, 2008 | — | |
| May 1, 2006 | May 31, 2006 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2006 | — | |
| May 1, 2006 | May 31, 2006 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2006 | — | |
| May 1, 2006 | May 31, 2006 | MCL | Yes | No | — | 5% of samples | — | Resolved | May 31, 2006 | — | |
| Sep 1, 2002 | Sep 30, 2002 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2002 | — | |
| Jun 1, 2001 | Jun 30, 2001 | MR | No | No | — | — | — | Resolved | Jun 30, 2001 | — | |
| Jun 1, 2001 | Jun 30, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2001 | — | |
| Mar 1, 2001 | Mar 31, 2001 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2001 | — | |
| Jun 1, 2000 | Jun 30, 2000 | Other | No | No | — | — | — | Archived | Jun 30, 2000 | — | |
| Jun 1, 2000 | Jun 30, 2000 | Other | No | No | — | — | — | Archived | Jun 30, 2000 | — | |
| Jun 1, 2000 | Jun 30, 2000 | Other | No | No | — | — | — | Archived | Jun 30, 2000 | — | |
| Apr 1, 2000 | Apr 30, 2000 | Other | No | No | — | — | — | Archived | Apr 30, 2000 | — | |
| Apr 1, 2000 | Apr 30, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2000 | — | |
| Apr 1, 2000 | Apr 30, 2000 | MR | No | Yes | — | — | — | Resolved | Apr 30, 2000 | — | |
| Apr 1, 2000 | Apr 30, 2000 | MR | No | Yes | — | — | — | Resolved | Apr 30, 2000 | — | |
| Apr 1, 2000 | Apr 30, 2000 | MR | No | Yes | — | — | — | Resolved | Apr 30, 2000 | — | |
| Apr 1, 2000 | Apr 30, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2000 | — | |
| Apr 1, 2000 | Apr 30, 2000 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2000 | — | |
| Sep 1, 1999 | Sep 30, 1999 | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 1999 | — | |
| Feb 1, 1998 | Feb 28, 1998 | Other | No | No | — | — | — | Archived | Feb 28, 1998 | — | |
| Feb 1, 1998 | Feb 28, 1998 | MR | No | No | — | — | — | Archived | Feb 28, 1998 | — | |
| Feb 1, 1998 | Feb 28, 1998 | MR | No | No | — | — | — | Archived | Feb 28, 1998 | — | |
| Jul 1, 1995 | Jul 31, 1995 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 1995 | — | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1994 | — | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1994 | — | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | — | 5% of samples | — | Archived | Oct 31, 1994 | — | |
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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.