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Public water system record

Subiaco City Waterworks

Serves Subiaco, Logan County, AR · 533 people served

Federal records show 9 health-based violations and no monitoring/reporting issues for Subiaco City Waterworks 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.

  • AR0000135
  • SUBIACO
  • AR
  • 533 served

System profile

Source water Purchased surface water
ZIP 72865
EPA system ID AR0000135

Verify this system on EPA ECHO →

Health-based violations, last 10 years
9
Resolved
8
Unresolved
0
Archived by EPA
1
Any acute record
No
Monitoring issues, last 10 years
0

Key facts

  • Subiaco City Waterworks buys its water from Subiaco Academy Waterworks.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 95 µg/L, federal limit 80 µg/L (1.2 times the limit), 2020.
  • Most recent formal enforcement: administrative penalty by Arkansas, August 2020.
  • Record on file since 1991, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 132 unknown out of 239 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 88 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
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 62 µg/L, federal limit 60 µg/L (at or just above the limit)
 220 Apr 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Apr 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Apr 1, 2020 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 62 µg/L, federal limit 60 µg/L (at or just above the limit)
 220 Mar 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 95 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Mar 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 94 µg/L, federal limit 80 µg/L (1.2 times the limit)
 220 Jan 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 86 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Oct 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 89 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Oct 1, 2019 Resolved No

Full record since 1991

EPA's records for Subiaco City Waterworks go back to 1991. Before October 19, 2016 they list no health-based violations and 7 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 2
2000s 0 5
October 19, 2016 to 2019 2 0
2020s 7 0

Enforcement actions

Arkansas regulators took 2 formal enforcement actions against Subiaco City Waterworks in 2020. The most recent was an administrative penalty in August 2020.

Date By Action Violations covered
Aug 21, 2020 Arkansas Administrative penalty 8 violations (8 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
May 19, 2020 Arkansas Compliance order (no penalty) 5 violations (5 health-based): Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)

What the violations mean

Total Trihalomethanes (TTHMs)

7 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

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

Subiaco City Waterworks buys its water from Subiaco Academy Waterworks. It lists no wells or intakes of its own. It also has an emergency connection to Scranton Waterworks.

Buys water from

Emergency or part-time connections to

Annual water quality report

Subiaco City Waterworks 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 Arkansas.

Certified drinking water labs by state EPA guidance for private wells