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Public water system record

Washington Water Authority Wwa

Serves an area of Washington County and Benton County, AR that includes Farmington, Tontitown, Prairie Grove and 3 more places · 20,140 people served

Federal records show 4 health-based violations and 4 monitoring/reporting issues for Washington Water Authority Wwa in the last ten years. The most serious issue in this window was a resolved Total Trihalomethanes (TTHMs) violation.

  • AR0000574
  • FARMINGTON
  • AR
  • 20,140 served

System profile

Source water Purchased surface water
ZIP 72730
EPA system ID AR0000574

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
4

Key facts

  • Washington Water Authority Wwa buys its water from Benton-Washington Regional PWA.
  • Highest measured level in the last 10 years: Total Trihalomethanes (TTHMs), 85 µg/L, federal limit 80 µg/L (1.1 times the limit), 2018.
  • Most recent formal enforcement: administrative penalty by Arkansas, February 2019.
  • Record on file since 1994, with 11 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 2,611 unknown out of 4,709 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 84 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Jan 1, 2019 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 85 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Oct 1, 2018 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, 2018 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 85 µg/L, federal limit 80 µg/L (1.1 times the limit)
 220 Apr 1, 2018 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Consumer Confidence Rule
OTHER
 Oct 1, 2019 Resolved
Public Notice
OTHER
 Mar 1, 2019 Resolved
Public Notice
OTHER
 Sep 1, 2016 Resolved
Public Notice
OTHER
 Dec 1, 2015 Resolved

Full record since 1994

EPA's records for Washington Water Authority Wwa go back to 1994. Before October 19, 2016 they list 11 health-based violations (9 resolved, 2 archived by EPA without a recorded fix) and 10 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 4
2000s 3 3
2010 to October 18, 2016 7 3
October 19, 2016 to 2019 4 2

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

Show all 11 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 81 µg/L, federal limit 80 µg/L (at or just above the limit)
 Jul 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 93 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Apr 1, 2016 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 99 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Apr 1, 2016 Archived
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 108 µg/L, federal limit 80 µg/L (1.4 times the limit)
 Apr 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 102 µg/L, federal limit 80 µg/L (1.3 times the limit)
 Jan 1, 2016 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 95 µg/L, federal limit 80 µg/L (1.2 times the limit)
 Oct 1, 2015 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 83 µg/L, federal limit 80 µg/L (at or just above the limit)
 Jul 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
 Aug 1, 2004 Resolved
Total Coliform
Contaminant limit exceeded
 Sep 1, 2003 Resolved
Total Coliform
Contaminant limit exceeded
 Aug 1, 2003 Resolved
Total Coliform
Contaminant limit exceeded
 Jul 1, 1997 Resolved

Enforcement actions

Arkansas regulators took 4 formal enforcement actions against Washington Water Authority Wwa between 2016 and 2019. The most recent was an administrative penalty in February 2019.

Date By Action Violations covered
Feb 12, 2019 Arkansas Administrative penalty 5 violations (4 health-based): Total Trihalomethanes (TTHMs), Public Notice
Nov 5, 2018 Arkansas Compliance order (no penalty) 2 violations (2 health-based): Total Trihalomethanes (TTHMs)
May 13, 2016 Arkansas Administrative penalty 5 violations (4 health-based): Total Trihalomethanes (TTHMs), Public Notice
Mar 1, 2016 Arkansas Compliance order (no penalty) 2 violations (2 health-based): Total Trihalomethanes (TTHMs)

What the violations mean

Total Trihalomethanes (TTHMs)

4 incidents

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Washington Water Authority Wwa buys its water from Benton-Washington Regional PWA. It lists no wells or intakes of its own. It also has emergency connections to Fayetteville Waterworks and West Fork Waterworks.

Buys water from

Emergency or part-time connections to

Annual water quality report

Washington Water Authority Wwa 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 Arkansas.

Certified drinking water labs by state EPA guidance for private wells