CS MOHAWK UTILITY COMPANY

PWSID: AZ0414030 · Des Peres, MO · Serves 243 people

According to EPA Safe Drinking Water Information System (SDWIS), CS MOHAWK UTILITY COMPANY (PWSID AZ0414030) in Des Peres, MO is listed as a CWS water system covering about 243 people. The same extract lists 27 health-based violation records spanning 2015-2025. Those 27 health-based rows for CS MOHAWK UTILITY COMPANY cover contaminants such as Interim Enhanced Surface Water Treatment Rule, Revised Total Coliform Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.

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Health-Based Records

CS MOHAWK UTILITY COMPANY has 27 health-based violation records in this historical extract. Monitoring and reporting records are not included.

Population Served
243
Health-Based Violation Records
27
Distinct Contaminant Codes
2
Source Type
Surface Water

PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 2 distinct EPA contaminant codes appear in this system's record, including Interim Enhanced Surface Water Treatment Rule, Revised Total Coliform Rule. Recorded violations span 2015–2025. Day-to-day primacy enforcement for this system runs through the Missouri drinking-water program, not EPA directly.

A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Missouri state drinking-water program's public portal.

System Details

EPA ID (PWSID)
AZ0414030
System Type
CWS
Water Source
Surface Water
Location
Des Peres, MO
Population Served
243
Health Violations
Yes (27)

What contaminants are in this water system?

Violation History (27)

Contaminant Health Date
Interim Enhanced Surface Water Treatment Rule Yes Dec 1, 2025
Interim Enhanced Surface Water Treatment Rule Yes Nov 1, 2025
Interim Enhanced Surface Water Treatment Rule Yes Oct 1, 2025
Interim Enhanced Surface Water Treatment Rule Yes Oct 1, 2025
Interim Enhanced Surface Water Treatment Rule Yes Sep 1, 2025
Interim Enhanced Surface Water Treatment Rule Yes Sep 1, 2025
Interim Enhanced Surface Water Treatment Rule Yes Sep 1, 2025
Interim Enhanced Surface Water Treatment Rule Yes Sep 1, 2025
Interim Enhanced Surface Water Treatment Rule Yes Sep 1, 2024
Interim Enhanced Surface Water Treatment Rule Yes Sep 1, 2024
Interim Enhanced Surface Water Treatment Rule Yes Sep 1, 2024
Interim Enhanced Surface Water Treatment Rule Yes Aug 1, 2024
Interim Enhanced Surface Water Treatment Rule Yes Aug 1, 2024
Interim Enhanced Surface Water Treatment Rule Yes Aug 1, 2024
Revised Total Coliform Rule Yes Jul 1, 2024
Revised Total Coliform Rule Yes Jul 1, 2024
Revised Total Coliform Rule Yes Aug 1, 2018
Interim Enhanced Surface Water Treatment Rule Yes Apr 1, 2016
Interim Enhanced Surface Water Treatment Rule Yes Mar 1, 2016
Interim Enhanced Surface Water Treatment Rule Yes Feb 1, 2016
Interim Enhanced Surface Water Treatment Rule Yes Jan 1, 2016
Interim Enhanced Surface Water Treatment Rule Yes Dec 1, 2015
Interim Enhanced Surface Water Treatment Rule Yes Nov 1, 2015
Interim Enhanced Surface Water Treatment Rule Yes Oct 1, 2015
Interim Enhanced Surface Water Treatment Rule Yes Sep 1, 2015
Interim Enhanced Surface Water Treatment Rule Yes Aug 1, 2015
Interim Enhanced Surface Water Treatment Rule Yes Aug 1, 2015

Frequently Asked Questions

What does EPA SDWIS list for CS MOHAWK UTILITY COMPANY?
CS MOHAWK UTILITY COMPANY has 27 health-based violation records in this historical extract. Monitoring and reporting records are not included. The system uses surface water water as its source.
How many people does CS MOHAWK UTILITY COMPANY serve?
CS MOHAWK UTILITY COMPANY serves 243 people in Des Peres, MO. It is classified as a CWS water system.
What violations does CS MOHAWK UTILITY COMPANY have?
CS MOHAWK UTILITY COMPANY has 27 health-based violation records in PlainEnviro's extract spanning 2015–2025. Monitoring and reporting records are not included.
What contaminants have been found in CS MOHAWK UTILITY COMPANY water?
Violations have been recorded for 2 contaminants. The most frequent: Interim Enhanced Surface Water Treatment Rule, Revised Total Coliform Rule.

Compare beyond Missouri

Nationwide peers by violations & population served

Cross-state SDWIS systems nearest CS MOHAWK UTILITY COMPANY on cumulative violation count (27) and EPA-reported population served (243). Violation-count peers include COVE WATERWORKS, OLA WATERWORKS, GREEN HILL-BROOKS CHAPEL WATER.

About This Data

CS MOHAWK UTILITY COMPANY (AZ0414030) is drawn from EPA SDWIS. Nearby county systems in this extract include MO AMERICAN ST LOUIS ST CHARLES COUNTIES; KIRKWOOD PWS; JEFFERSON COUNTY PWSD 2; MO AMERICAN MEXICO. Health-based rows (27 MCL/TT) are historical registry state, not a current drinkability score.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

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