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Public water system record

Lincoln County PWSD 1

Serves an area of Lincoln County, MO that includes Moscow Mills, Winfield, Old Monroe and 3 more places · 14,000 people served

Federal records show 2 health-based violations and 3 monitoring/reporting issues for Lincoln County PWSD 1 in the last ten years. The most serious issue in this window was a resolved Fluoride violation.

  • MO6024340
  • WINFIELD
  • MO
  • 14,000 served

System profile

Source water Groundwater
ZIP 63389
EPA system ID MO6024340

Verify this system on EPA ECHO →

Health-based violations, last 10 years
2
Resolved
2
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
3

Key facts

  • Lincoln County PWSD 1 draws water from 7 wells (1 of them for emergency, seasonal or other part-time use).
  • Highest measured level in the last 10 years: Fluoride, 4.24 mg/L, federal limit 4 mg/L (1.1 times the limit), 2020.
  • Most recent formal enforcement: signed compliance agreement by Missouri, May 2008.
  • Record on file since 1995, with 31 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 4,909 unknown out of 5,604 service lines.

Check whether Lincoln County PWSD 1 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
Fluoride
Contaminant limit exceeded
Measured 4.24 mg/L, federal limit 4 mg/L (1.1 times the limit)
 330 Jan 1, 2020 Resolved No
Fluoride
Contaminant limit exceeded
Measured 4.2 mg/L, federal limit 4 mg/L (1.1 times the limit)
 330 Oct 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
 Dec 1, 2024 Resolved
Revised Total Coliform Rule
Monitoring violation
 Apr 1, 2022 Resolved
E. coli
Monitoring and reporting
 Jun 1, 2017 Resolved

Full record since 1995

EPA's records for Lincoln County PWSD 1 go back to 1995. Before October 19, 2016 they list 31 health-based violations (26 resolved, 5 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
2000s 22 2
2010 to October 18, 2016 9 0
October 19, 2016 to 2019 1 1
2020s 1 2

Most recent health-based violation before October 19, 2016: Fluoride, began April 2015, Archived.

Show all 31 health-based violations before October 19, 2016
Contaminant Start date Status
Fluoride
Contaminant limit exceeded
Measured 4.095 mg/L, federal limit 4 mg/L (at or just above the limit)
 Apr 1, 2015 Archived
Fluoride
Contaminant limit exceeded
Measured 4.14 mg/L, federal limit 4 mg/L (at or just above the limit)
 Jan 1, 2015 Archived
Fluoride
Contaminant limit exceeded
Measured 4.0975 mg/L, federal limit 4 mg/L (at or just above the limit)
 Oct 1, 2014 Archived
Fluoride
Contaminant limit exceeded
Measured 4.075 mg/L, federal limit 4 mg/L (at or just above the limit)
 Jul 1, 2014 Archived
Fluoride
Contaminant limit exceeded
Measured 4.06 mg/L, federal limit 4 mg/L (at or just above the limit)
 Apr 1, 2014 Archived
Fluoride
Contaminant limit exceeded
Measured 4.115 mg/L, federal limit 4 mg/L (at or just above the limit)
 Jul 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 2012 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1125 mg/L, federal limit 4 mg/L (at or just above the limit)
 Oct 1, 2010 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.0975 mg/L, federal limit 4 mg/L (at or just above the limit)
 Jul 1, 2010 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1275 mg/L, federal limit 4 mg/L (at or just above the limit)
 Jan 1, 2009 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.085 mg/L, federal limit 4 mg/L (at or just above the limit)
 Oct 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.3825 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Jul 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.3725 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Apr 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.465 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Jan 1, 2008 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.4925 mg/L, federal limit 4 mg/L (1.1 times the limit)
 Oct 1, 2007 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.1825 mg/L, federal limit 4 mg/L (at or just above the limit)
 Jul 1, 2007 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.4 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
 Apr 1, 2007 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.73 pCi/L, federal limit 15 pCi/L (at or just above the limit)
 Apr 1, 2007 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.175 mg/L, federal limit 4 mg/L (at or just above the limit)
 Apr 1, 2007 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.13 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 Jan 1, 2007 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.03 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
 Jan 1, 2007 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.28 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
 Oct 1, 2006 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 16.18 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
 Oct 1, 2006 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.9 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
 Jul 1, 2006 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.2 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 Jul 1, 2006 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.045 mg/L, federal limit 4 mg/L (at or just above the limit)
 Jul 1, 2006 Resolved
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.13 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
 Apr 1, 2006 Resolved
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 15.85 pCi/L, federal limit 15 pCi/L (1.1 times the limit)
 Apr 1, 2006 Resolved
Fluoride
Contaminant limit exceeded
Measured 4.124 mg/L, federal limit 4 mg/L (at or just above the limit)
 Apr 1, 2006 Resolved
Fluoride
Contaminant limit exceeded
 Jan 1, 2004 Resolved
Fluoride
Contaminant limit exceeded
 Jan 1, 2003 Resolved

Enforcement actions

Missouri regulators took 1 formal enforcement action against Lincoln County PWSD 1 in 2008. The most recent was a signed compliance agreement in May 2008.

Date By Action Violations covered
May 15, 2008 Missouri Signed compliance agreement 11 violations (8 health-based): Gross Alpha, Excl. Radon and U, Combined Radium (-226 and -228)

What the violations mean

Fluoride

2 incidents

Fluoride exceeded the federal limit

Excessive fluoride can cause dental and skeletal fluorosis

Where the water comes from

Lincoln County PWSD 1 draws water from 7 wells (1 of them for emergency, seasonal or other part-time use). 1 other community water system buys water from Lincoln County PWSD 1.

Community systems that buy water from it

Annual water quality report

Lincoln County PWSD 1 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

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