Public water system record

Oskaloosa Municipal Water Dept

Serves Oskaloosa and University Park, Mahaska County, IA · 12,808 people served

Federal records show no health-based violations and 3 monitoring/reporting issues for Oskaloosa Municipal Water Dept in the last ten years.

  • IA6273005
  • OSKALOOSA
  • IA
  • 12,808 served

System profile

Source water Groundwater under direct influence
ZIP 52577
EPA system ID IA6273005

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
3

Key facts

  • Oskaloosa Municipal Water Dept draws water from 12 wells.
  • Record on file since 1992, with 8 health-based violations before October 19, 2016.
  • Lead pipe inventory: 64 lead and 3,664 unknown out of 5,462 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.

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
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Jan 1, 2024 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Oct 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2021 Resolved

Full record since 1992

EPA's records for Oskaloosa Municipal Water Dept go back to 1992. Before October 19, 2016 they list 8 health-based violations (7 resolved, 1 archived by EPA without a recorded fix) and 17 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 2 15
2000s 4 0
2010 to October 18, 2016 2 2
2020s 0 3

Most recent health-based violation before October 19, 2016: Total Coliform, began August 2015, Resolved.

Show all 8 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Aug 1, 2015 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Feb 1, 2011 Resolved
Total Coliform
Contaminant limit exceeded
Sep 1, 2009 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Oct 1, 2008 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Aug 1, 2007 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
May 1, 2007 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
Oct 1, 1998 Archived

Where the water comes from

Oskaloosa Municipal Water Dept draws water from 12 wells. 1 other community water system buys water from Oskaloosa Municipal Water Dept.

Community systems that buy water from it

Annual water quality report

Oskaloosa Municipal Water Dept 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 Iowa.