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Public water system record

Fairfield Water Supply

Serves Fairfield, Jefferson County, IA · 9,821 people served

Federal records show no health-based violations and 1 monitoring/reporting issue for Fairfield Water Supply in the last ten years.

  • IA5131033
  • FAIRFIELD
  • IA
  • 9,821 served

System profile

Source water Groundwater
ZIP 52556
EPA system ID IA5131033

Verify this system on EPA ECHO →

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

Key facts

  • Fairfield Water Supply draws water from 3 wells.
  • Record on file since 1984, with 14 health-based violations before October 19, 2016.
  • Lead pipe inventory: 70 lead and 2,987 unknown out of 9,768 service lines.

Check whether Fairfield Water Supply serves your address

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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.

None since October 2016.

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Combined Radium (-226 and -228)
Monitoring and reporting
 Jan 1, 2023 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.

Full record since 1984

EPA's records for Fairfield Water Supply go back to 1984. Before October 19, 2016 they list 14 health-based violations (1 resolved, 13 archived by EPA without a recorded fix) and 5 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 1
1990s 13 2
2000s 1 0
2010 to October 18, 2016 0 2
2020s 0 1

Most recent health-based violation before October 19, 2016: Total Coliform, began December 2004, Resolved.

Show all 14 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
 Dec 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 1998 Archived
Surface Water Treatment Rule
Treatment technique failure
 May 1, 1998 Archived
Surface Water Treatment Rule
Treatment technique failure
 Aug 1, 1997 Archived
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 1997 Archived
Surface Water Treatment Rule
Treatment technique failure
 Jun 1, 1997 Archived
Surface Water Treatment Rule
Treatment technique failure
 Oct 1, 1994 Archived
Surface Water Treatment Rule
Treatment technique failure
 Sep 1, 1994 Archived
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 1994 Archived
Surface Water Treatment Rule
Treatment technique failure
 Aug 1, 1993 Archived
Surface Water Treatment Rule
Treatment technique failure
 Jul 1, 1993 Archived
Surface Water Treatment Rule
Treatment technique failure
 Jun 1, 1993 Archived
Surface Water Treatment Rule
Treatment technique failure
 May 1, 1993 Archived
Surface Water Treatment Rule
Treatment technique failure
 Apr 1, 1993 Archived

Where the water comes from

Fairfield Water Supply draws water from 3 wells. 4 other community water systems buy water from Fairfield Water Supply.

Community systems that buy water from it

Annual water quality report

Fairfield Water Supply 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 Iowa.

Certified drinking water labs by state EPA guidance for private wells