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Public water system record

City of Clinton

Serves Clinton, Hinds County, MS · 25,000 people served

Federal records show 4 health-based violations and 2 monitoring/reporting issues for City of Clinton in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.

  • MS0250003
  • CLINTON
  • MS
  • 25,000 served

System profile

Source water Groundwater
ZIP 39056
EPA system ID MS0250003

Verify this system on EPA ECHO →

Health-based violations, last 10 years
4
Resolved
4
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • City of Clinton draws water from 11 wells.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit), 2017.
  • Most recent enforcement action: boil water order by Mississippi, May 1999.
  • Record on file since 1991, with 9 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 9,899 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
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Jan 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 220 Apr 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Jan 1, 2017 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 220 Oct 1, 2016 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Chlorine
Monitoring and reporting
 Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Public Notice
OTHER
 Aug 9, 2020 Resolved

Full record since 1991

EPA's records for City of Clinton go back to 1991. Before October 19, 2016 they list 9 health-based violations (5 resolved, 4 archived by EPA without a recorded fix) and 229 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 4 0
2000s 0 197
2010 to October 18, 2016 5 32
October 19, 2016 to 2019 2 0
2020s 1 2

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

Show all 9 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.088 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Oct 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jul 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Apr 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Jan 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.08 mg/L (at or just above the limit)
 Oct 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
 Mar 1, 1993 Archived
Total Coliform
Contaminant limit exceeded
 Sep 1, 1992 Archived
Total Coliform
Contaminant limit exceeded
 Jun 1, 1991 Archived
Total Coliform
Contaminant limit exceeded
 Jan 1, 1991 Archived

Enforcement actions

Mississippi regulators issued 3 boil water orders to City of Clinton between 1997 and 1999. The most recent was a boil water order in May 1999.

Date By Action Violations covered
May 21, 1999 Mississippi Boil water order 1 violation
Oct 22, 1998 Mississippi Boil water order 1 violation
May 21, 1997 Mississippi Boil water order 1 violation

What the violations mean

Total Trihalomethanes (TTHMs)

3 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Haloacetic Acids (HAA5)

1 incident

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Where the water comes from

City of Clinton draws water from 11 wells.

Annual water quality report

City of Clinton 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 Mississippi.

Certified drinking water labs by state EPA guidance for private wells