Tap Truth EPA drinking water records, in plain English

Public water system record

Mt Sterling Water Works

Serves an area of Montgomery County, KY that includes Mount Sterling · 16,391 people served

Federal records show 2 health-based violations and no monitoring/reporting issues for Mt Sterling Water Works in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.

  • KY0870298
  • MT STERLING
  • KY
  • 16,391 served

System profile

Source water Surface water
ZIP 40353
EPA system ID KY0870298

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
0

Key facts

  • Mt Sterling Water Works draws water from 1 surface water intake.
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit), 2023.
  • Record on file since 1993, with 21 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 6,545 service lines.

Check whether Mt Sterling Water Works serves your address

Address suggestions by Mapbox

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 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Apr 1, 2023 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Jan 1, 2023 Resolved No

Full record since 1993

EPA's records for Mt Sterling Water Works go back to 1993. Before October 19, 2016 they list 21 health-based violations (21 resolved) and 52 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 20
2000s 19 30
2010 to October 18, 2016 1 2
2020s 2 0

Most recent health-based violation before October 19, 2016: Haloacetic Acids (HAA5), began July 2010, Resolved.

Show all 21 health-based violations before October 19, 2016
Contaminant Start date Status
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.064 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Jul 1, 2010 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.075 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
 Jul 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
 Apr 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
 Jan 1, 2008 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
 Oct 1, 2007 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.073 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 Jul 1, 2006 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.07 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 Apr 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
 Jan 1, 2005 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.103 mg/L, federal limit 0.06 mg/L (1.7 times the limit)
 Oct 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.084 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Oct 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jul 1, 2004 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.111 mg/L, federal limit 0.06 mg/L (1.9 times the limit)
 Jul 1, 2004 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.093 mg/L, federal limit 0.06 mg/L (1.6 times the limit)
 Apr 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.095 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
 Apr 1, 2004 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.06 mg/L (1.5 times the limit)
 Jan 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Jan 1, 2004 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.091 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Oct 1, 2003 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Oct 1, 2003 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Jul 1, 2003 Resolved
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
 Apr 1, 2003 Resolved
Total Coliform
Contaminant limit exceeded
 Dec 1, 1993 Resolved

What the violations mean

Haloacetic Acids (HAA5)

2 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Where the water comes from

Mt Sterling Water Works draws water from 1 surface water intake. 5 other community water systems buy water from Mt Sterling Water Works. 1 other public water system has an emergency connection to Mt Sterling Water Works.

Community systems that buy water from it

Annual water quality report

Mt Sterling Water Works 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 Kentucky.

Certified drinking water labs by state EPA guidance for private wells