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Public water system record

Emma PWS

Serves Emma, Lafayette County, MO · 205 people served

Federal records show 5 health-based violations and 2 monitoring/reporting issues for Emma PWS in the last ten years. The most serious issue in this window was a Total Trihalomethanes (TTHMs) violation that EPA lists as archived, not resolved.

  • MO1010254
  • EMMA
  • MO
  • 205 served

System profile

Source water Purchased surface water
ZIP 65327
EPA system ID MO1010254

Verify this system on EPA ECHO →

Health-based violations, last 10 years
5
Resolved
3
Unresolved
0
Archived by EPA
2
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • Emma PWS buys its water from Concordia PWS.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 101 µg/L, federal limit 80 µg/L (1.3 times the limit), 2019.
  • Most recent enforcement action: boil water order by Missouri, October 2002.
  • Record on file since 1991, with 4 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 13 unknown out of 163 service lines.

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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
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 84.9 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 87.5 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Jul 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
 No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 86 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Apr 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 100 µg/L, federal limit 80 µg/L (1.3 times the limit)
 220 Jan 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 101 µg/L, federal limit 80 µg/L (1.3 times the limit)
 220 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
Consumer Confidence Rule
OTHER
 Jul 1, 2022 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2021 Resolved

Full record since 1991

EPA's records for Emma PWS go back to 1991. Before October 19, 2016 they list 4 health-based violations (4 resolved) and no monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 2 0
2000s 2 0
October 19, 2016 to 2019 1 0
2020s 4 2

Most recent health-based violation before October 19, 2016: Total Coliform, began October 2002, Resolved.

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Oct 1, 2002 Resolved
Total Coliform (acute)
Contaminant limit exceeded
 Oct 1, 2002 Resolved
Total Coliform
Contaminant limit exceeded
 Aug 1, 1993 Resolved
Total Coliform (acute)
Contaminant limit exceeded
 Sep 1, 1991 Resolved

Enforcement actions

Missouri regulators issued 2 boil water orders to Emma PWS between 1991 and 2002. The most recent was a boil water order in October 2002.

Date By Action Violations covered
Oct 9, 2002 Missouri Boil water order 1 violation (1 health-based): Total Coliform
Sep 27, 1991 Missouri Boil water order 1 violation (1 health-based): Total Coliform

What the violations mean

Total Trihalomethanes (TTHMs)

5 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Emma PWS buys its water from Concordia PWS. It lists no wells or intakes of its own. 1 other community water system buys water from Emma PWS.

Buys water from

Community systems that buy water from it

Annual water quality report

Emma PWS 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 Emma PWS 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