Public water system record

Aberdeen

Serves Aberdeen, Brown County, SD · 27,989 people served

Federal records show 6 health-based violations and no monitoring/reporting issues for Aberdeen in the last ten years. The most serious issue in this window was a resolved Interim Enhanced Surface Water Treatment Rule violation.

  • SD4600020
  • ABERDEEN
  • SD
  • 27,989 served

System profile

Source water Surface water
ZIP 57401
EPA system ID SD4600020

Verify this system on EPA ECHO →

Health-based violations, last 10 years
6
Resolved
6
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
0

Key facts

  • Aberdeen draws water from 9 wells and 1 surface water intake.
  • Record on file since 1976, with 7 health-based violations before October 19, 2016.
  • Lead pipe inventory: 1,128 lead and 2,264 unknown out of 9,566 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
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2025 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2024 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2024 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Nov 1, 2024 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jul 1, 2023 Resolved Yes
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Apr 1, 2022 Resolved Yes

Full record since 1976

EPA's records for Aberdeen go back to 1976. Before October 19, 2016 they list 7 health-based violations (7 resolved) and 25 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 2
1990s 1 1
2000s 3 21
2010 to October 18, 2016 3 1
2020s 6 0

Most recent health-based violation before October 19, 2016: Total Coliform, began June 2012, Resolved.

Show all 7 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Jun 1, 2012 Resolved
Total Coliform (acute)
Contaminant limit exceeded
Jun 1, 2012 Resolved
Total Coliform
Contaminant limit exceeded
Jul 1, 2011 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
May 1, 2006 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Oct 1, 2005 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Nov 1, 2002 Resolved
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 1998 Resolved

What the violations mean

Interim Enhanced Surface Water Treatment Rule

6 incidents

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Where the water comes from

Aberdeen draws water from 9 wells and 1 surface water intake.

Annual water quality report

Aberdeen 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 South Dakota.