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Public water system record

Confluence Rivers Stone Ridge Meadows

On record as serving St. Charles County, MO · Serves 60 people

Federal records show 3 health-based violations and 4 monitoring/reporting issues for Confluence Rivers Stone Ridge Meadows in the last ten years. The most serious issue in this window was a Combined Radium (-226 and -228) violation that EPA lists as archived, not resolved.

  • MO6031488
  • DES PERES
  • MO
  • 60 served

System profile

Source water Groundwater
ZIP 63131
EPA system ID MO6031488

Verify this system on EPA ECHO →

Health-based violations, last 10 years
3
Resolved
0
Unresolved
0
Archived by EPA
3
Any acute record
No
Monitoring issues, last 10 years
4

Key facts

  • Confluence Rivers Stone Ridge Meadows draws water from 1 well.
  • Highest measured level in the last 10 years: Combined Radium (-226 and -228), 6.25 pCi/L, federal limit 5 pCi/L (1.3 times the limit), 2019.
  • Most recent formal enforcement: compliance order with a penalty by Missouri, April 2022.
  • Lead pipe inventory: 0 lead and 0 unknown out of 18 service lines.

Check whether Confluence Rivers Stone Ridge Meadows serves your address

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.53 pCi/L, federal limit 5 pCi/L (1.1 times the limit)
 340 Apr 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.85 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 340 Jan 1, 2020 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.25 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
 340 Oct 1, 2019 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
 Apr 1, 2023 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2022 Resolved
Public Notice
OTHER
 Jun 23, 2021 Resolved

Enforcement actions

Missouri regulators took 1 formal enforcement action against Confluence Rivers Stone Ridge Meadows in 2022. The most recent was a compliance order with a penalty in April 2022.

Date By Action Violations covered
Apr 22, 2022 Missouri Compliance order with a penalty 3 violations (3 health-based): Combined Radium (-226 and -228)

What the violations mean

Combined Radium (-226 and -228)

3 incidents

Test results for Combined Radium (-226 and -228) were above the federal limit (a maximum contaminant level violation).

The utility had to notify customers about each of these violations.

Where the water comes from

Confluence Rivers Stone Ridge Meadows draws water from 1 well.

Annual water quality report

Confluence Rivers Stone Ridge Meadows must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Confluence Rivers Stone Ridge Meadows for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Missouri.

Certified drinking water labs by state EPA guidance for private wells