JEFFERSON COUNTY WATER AUTHORITY
Missouri - Community Water System - PWSID: MO6071352
System Information
| PWSID | MO6071352 |
| System Name | JEFFERSON COUNTY WATER AUTHORITY |
| System Type | Community Water System |
| Water Source | Ground Water Under Influence |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 07 |
| Serves School | No |
| Wholesaler | Yes |
| First Reported | Nov 18, 2003 |
| Last Reported | Mar 25, 2026 |
Location & Contact
| State | Missouri |
| City | FESTUS |
| ZIP Code | 63028-0000 |
| Address | 1682 CRYSTAL HEIGHTS |
| Organization | CRANNICK, JEFFREY |
| Phone | 636-933-0106 |
Population & Service
| Population Served | 25 |
| Service Connections | 3 |
Drinking Water Violations (20)
This water system has 20 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 85.11 UG/L | 0.080 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 85.11 UG/L | 0.080 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 85.11 UG/L | 0.080 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Apr 1, 2011 | Jun 30, 2011 | MCL | Yes | No | 85.11 UG/L | 0.080 mg/L | - | Resolved | Jun 30, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MCL | Yes | No | 85.85 UG/L | 0.080 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MCL | Yes | No | 85.85 UG/L | 0.080 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MCL | Yes | No | 85.85 UG/L | 0.080 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Jan 1, 2011 | Mar 31, 2011 | MCL | Yes | No | 85.85 UG/L | 0.080 mg/L | - | Resolved | Mar 31, 2011 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 86.12 UG/L | 0.080 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 86.12 UG/L | 0.080 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 86.12 UG/L | 0.080 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Oct 1, 2010 | Dec 31, 2010 | MCL | Yes | No | 86.12 UG/L | 0.080 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | 85.69 UG/L | 0.080 mg/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | 85.69 UG/L | 0.080 mg/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | 85.69 UG/L | 0.080 mg/L | - | Resolved | Sep 30, 2010 | - | |
| Jul 1, 2010 | Sep 30, 2010 | MCL | Yes | No | 85.69 UG/L | 0.080 mg/L | - | Resolved | Sep 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MCL | Yes | No | 87.11 UG/L | 0.080 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Apr 1, 2010 | Jun 30, 2010 | MCL | Yes | No | 87.11 UG/L | 0.080 mg/L | - | Resolved | Jun 30, 2010 | - | |
| Jan 1, 2010 | Mar 31, 2010 | MCL | Yes | No | 84.24 UG/L | 0.080 mg/L | - | Resolved | Mar 31, 2010 | - | |
| Jan 1, 2010 | Mar 31, 2010 | MCL | Yes | No | 84.24 UG/L | 0.080 mg/L | - | Resolved | Mar 31, 2010 | - |
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.