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Public water system record

Green City PWS

Serves Green City, Sullivan County, MO · 578 people served

Federal records show 2 health-based violations and 2 monitoring/reporting issues for Green City PWS in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • MO2010329
  • GREEN CITY
  • MO
  • 578 served

System profile

Source water Purchased surface water
ZIP 63545
EPA system ID MO2010329

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
2

Key facts

  • Green City PWS buys its water from North Central MO Regional Water Com.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 81 µg/L, federal limit 80 µg/L (at or just above the limit), 2022.
  • Record on file since 1996, with 4 health-based violations before October 19, 2016.
  • Lead pipe inventory: 1 lead and 13 unknown out of 351 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 81 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Apr 1, 2022 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Jul 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
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2025 Active
Consumer Confidence Rule
OTHER
 Jul 1, 2023 Resolved

Full record since 1996

EPA's records for Green City PWS go back to 1996. Before October 19, 2016 they list 4 health-based violations (3 resolved, 1 archived by EPA without a recorded fix) and 22 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 1
2000s 3 20
2010 to October 18, 2016 0 1
October 19, 2016 to 2019 1 0
2020s 1 2

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began July 2004, Resolved.

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 122.78 µg/L, federal limit 80 µg/L (1.5 times the limit)
 Jul 1, 2004 Resolved
CARBON, TOTAL
Treatment technique failure
 Jan 1, 2004 Resolved
Total Coliform
Contaminant limit exceeded
 Jun 1, 2001 Archived
Surface Water Treatment Rule
Treatment technique failure
 Apr 1, 1998 Resolved

What the violations mean

Total Trihalomethanes (TTHMs)

2 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Green City PWS buys its water from North Central MO Regional Water Com. It lists no wells or intakes of its own. 1 other community water system buys water from Green City PWS.

Buys water from

Community systems that buy water from it

Annual water quality report

Green City 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.

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