CS WINCHESTER WATER COMPANY
Missouri — Community Water System — PWSID: AZ0402110
System Information
| PWSID | AZ0402110 |
| System Name | CS WINCHESTER WATER COMPANY |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 09 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jul 9, 1993 |
| Last Reported | Nov 17, 2025 |
Location & Contact
| State | Missouri |
| City | DES PERES |
| ZIP Code | 63131 |
| Address | — |
| Organization | KRIESS, FRED |
| Phone | 602-698-9786 |
Population & Service
| Population Served | 402 |
| Service Connections | 157 |
Drinking Water Violations (120)
This water system has 120 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 10, 2023 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Sep 14, 2023 | Ground Water Rule |
| Aug 10, 2023 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Sep 14, 2023 | Ground Water Rule |
| Aug 10, 2023 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Sep 14, 2023 | Ground Water Rule |
| Aug 10, 2023 | — | E. COLI | MR | No | Yes | — | — | — | Resolved | Sep 14, 2023 | Ground Water Rule |
| Apr 1, 2023 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | May 19, 2023 | Revised Total Coliform Rule |
| Apr 1, 2023 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | May 19, 2023 | Revised Total Coliform Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 20, 2023 | Lead and Copper Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 20, 2023 | Lead and Copper Rule |
| Jan 1, 2023 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Mar 20, 2023 | Lead and Copper Rule |
| Oct 3, 2022 | — | Revised Total Coliform Rule | TT | Yes | No | — | — | — | Resolved | Jan 19, 2023 | Revised Total Coliform Rule |
| Oct 3, 2022 | — | Revised Total Coliform Rule | TT | Yes | No | — | — | — | Resolved | Jan 19, 2023 | Revised Total Coliform Rule |
| Oct 3, 2022 | — | Revised Total Coliform Rule | TT | Yes | No | — | — | — | Resolved | Jan 19, 2023 | Revised Total Coliform Rule |
| Oct 3, 2022 | — | Revised Total Coliform Rule | TT | Yes | No | — | — | — | Resolved | Jan 19, 2023 | Revised Total Coliform Rule |
| Oct 2, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 16, 2023 | Consumer Confidence Rule |
| Oct 2, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 16, 2023 | Consumer Confidence Rule |
| Jul 1, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 16, 2023 | Consumer Confidence Rule |
| Jul 1, 2022 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 16, 2023 | Consumer Confidence Rule |
| Oct 2, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 24, 2021 | Consumer Confidence Rule |
| Oct 2, 2021 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 24, 2021 | Consumer Confidence Rule |
| Jan 1, 2021 | Dec 31, 2021 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2021 | Nitrate Rule |
| Jan 1, 2021 | Dec 31, 2021 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2021 | Nitrate Rule |
| Nov 14, 2019 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Nov 15, 2019 | Lead and Copper Rule |
| Nov 14, 2019 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Nov 15, 2019 | Lead and Copper Rule |
| Oct 2, 2019 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Apr 12, 2020 | Consumer Confidence Rule |
| Oct 2, 2019 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Apr 12, 2020 | Consumer Confidence Rule |
| Oct 1, 2019 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 13, 2019 | Lead and Copper Rule |
| Oct 1, 2019 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 13, 2019 | Lead and Copper Rule |
| Sep 1, 2017 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Oct 23, 2017 | Revised Total Coliform Rule |
| Oct 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 15, 2017 | Consumer Confidence Rule |
| Oct 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 15, 2017 | Consumer Confidence Rule |
| Jul 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Mar 8, 2017 | Consumer Confidence Rule |
| Jul 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Mar 8, 2017 | Consumer Confidence Rule |
| Sep 1, 2010 | Sep 30, 2010 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2010 | Total Coliform Rule |
| Sep 1, 2010 | Sep 30, 2010 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Sep 30, 2010 | Total Coliform Rule |
| Dec 1, 2008 | Dec 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | Total Coliform Rule |
| Dec 1, 2008 | Dec 31, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2008 | Total Coliform Rule |
| Apr 1, 2005 | Apr 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2005 | Total Coliform Rule |
| Jan 1, 2002 | Dec 31, 2002 | 1,1,2-Trichloroethane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | DICHLOROMETHANE | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Carbon tetrachloride | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | 1,2-Dichloropropane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Trichloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Benzene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Ethylbenzene | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | Styrene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | trans-1,2-Dichloroethylene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | 1,1-Dichloroethylene | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | 1,1,1-Trichloroethane | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | p-Dichlorobenzene | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
| Jan 1, 2002 | Dec 31, 2002 | cis-1,2-Dichloroethylene | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2002 | Volatile Organic Chemicals |
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.