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Public water system record

Ripley County PWSD 1 West

Serves an area of Ripley County, MO that includes Doniphan · 940 people served

Federal records show 12 health-based violations and 1 monitoring/reporting issue for Ripley County PWSD 1 West in the last ten years. The most serious issue in this window was a resolved Combined Radium (-226 and -228) violation.

  • MO4024522
  • DONIPHAN
  • MO
  • 940 served

System profile

Source water Groundwater
ZIP 63935
EPA system ID MO4024522

Verify this system on EPA ECHO →

Health-based violations, last 10 years
12
Resolved
12
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
1

Key facts

  • Ripley County PWSD 1 West draws water from 3 wells.
  • Highest measured level in the last 10 years: Combined Radium (-226 and -228), 12.33 pCi/L, federal limit 5 pCi/L (2.5 times the limit), 2020.
  • Most recent formal enforcement: compliance order with a penalty by Missouri, June 2022.
  • Record on file since 1992, with 5 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 528 service lines.

Check whether Ripley County PWSD 1 West 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 11.85 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
 340 Jul 1, 2020 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.96 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
 340 Jul 1, 2020 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.33 pCi/L, federal limit 5 pCi/L (2.5 times the limit)
 340 Apr 1, 2020 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.7 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
 340 Apr 1, 2020 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 12.23 pCi/L, federal limit 5 pCi/L (2.4 times the limit)
 340 Jan 1, 2020 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.16 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
 340 Jan 1, 2020 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 11.5 pCi/L, federal limit 5 pCi/L (2.3 times the limit)
 340 Oct 1, 2019 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 17.76 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
 340 Oct 1, 2019 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 10.1 pCi/L, federal limit 5 pCi/L (2 times the limit)
 340 Jul 1, 2019 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19.81 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
 340 Jul 1, 2019 Resolved No
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.51 pCi/L, federal limit 15 pCi/L (at or just above the limit)
 340 Apr 1, 2019 Resolved No
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.83 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
 340 Apr 1, 2019 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Revised Total Coliform Rule
Monitoring violation
 Aug 1, 2025 Resolved

Full record since 1992

EPA's records for Ripley County PWSD 1 West go back to 1992. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 3 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 2
2000s 2 0
2010 to October 18, 2016 3 1
October 19, 2016 to 2019 6 0
2020s 6 1

Most recent health-based violation before October 19, 2016: Total Coliform, began July 2015, Resolved.

Show all 5 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Jul 1, 2015 Resolved
Total Coliform (acute)
Contaminant limit exceeded
 Sep 1, 2014 Resolved
Total Coliform
Contaminant limit exceeded
 Sep 1, 2014 Resolved
Total Coliform
Contaminant limit exceeded
 Oct 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
 May 1, 2004 Resolved

Enforcement actions

Missouri regulators took 1 formal enforcement action against Ripley County PWSD 1 West and issued 1 boil water order between 2014 and 2022. The most recent was a compliance order with a penalty in June 2022.

Date By Action Violations covered
Jun 29, 2022 Missouri Compliance order with a penalty 5 violations (5 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228)
Sep 12, 2014 Missouri Boil water order 1 violation (1 health-based): Total Coliform

What the violations mean

Combined Radium (-226 and -228)

6 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.

Gross Alpha, Excl. Radon and U

6 incidents

Test results for Gross Alpha, Excl. Radon and U 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

Ripley County PWSD 1 West draws water from 3 wells.

Annual water quality report

Ripley County PWSD 1 West 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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