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Public water system record

Monroeville Municipal Auth

Serves Monroeville, Allegheny County, PA · 48,500 people served

Federal records show 1 health-based violation and no monitoring/reporting issues for Monroeville Municipal Auth in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.

  • PA5020027
  • MONROEVILLE
  • PA
  • 48,500 served

System profile

Source water Purchased surface water
ZIP 15146
EPA system ID PA5020027

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Monroeville Municipal Auth buys its water from Mawc Sweeney Plant.
  • 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), 2022.
  • Most recent formal enforcement: consent decree or court judgment by Pennsylvania, August 2005.
  • Record on file since 1988, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 5,290 unknown out of 10,600 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 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Oct 1, 2022 Resolved No

Full record since 1988

EPA's records for Monroeville Municipal Auth go back to 1988. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 7 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 1
2000s 0 3
2010 to October 18, 2016 3 3
2020s 1 0

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

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Jan 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Oct 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
 Jul 1, 2015 Resolved

Enforcement actions

Pennsylvania regulators took 1 formal enforcement action against Monroeville Municipal Auth in 2005. The most recent was a consent decree or court judgment in August 2005.

Date By Action Violations covered
Aug 8, 2005 Pennsylvania Consent decree or court judgment 3 violations: Total Coliform, Chlorine, Surface Water Treatment Rule

What the violations mean

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

Monroeville Municipal Auth buys its water from Mawc Sweeney Plant. It lists no wells or intakes of its own. It also has emergency connections to Plum Boro Muni Auth and Wilkinsburg-Penn JT Water Auth. 2 other community water systems and 1 smaller public system such as schools, businesses or campgrounds buy water from Monroeville Municipal Auth.

Buys water from

Emergency or part-time connections to

Community systems that buy water from it

Annual water quality report

Monroeville Municipal Auth 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 Pennsylvania.

Certified drinking water labs by state EPA guidance for private wells