Public water system record

Little Sioux Water Department

Serves Little Sioux and River Sioux, Harrison County, IA · 150 people served

Federal records show no health-based violations and 6 monitoring/reporting issues for Little Sioux Water Department in the last ten years. At least one of these issues remains unresolved.

  • IA4333089
  • LITTLE SIOUX
  • IA
  • 150 served

System profile

Source water Groundwater
ZIP 51545
EPA system ID IA4333089

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
6

Key facts

  • Little Sioux Water Department draws water from 2 wells.
  • Record on file since 1985, with 2 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 131 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
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2024 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Aug 1, 2024 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Aug 1, 2024 Resolved
Public Notice
OTHER
Feb 20, 2023 Active
Haloacetic Acids (HAA5)
Monitoring and reporting
Aug 1, 2019 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Aug 1, 2019 Resolved

Full record since 1985

EPA's records for Little Sioux Water Department go back to 1985. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 7 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 1
1990s 1 4
2000s 0 2
2010 to October 18, 2016 1 0
October 19, 2016 to 2019 0 2
2020s 0 4

Most recent health-based violation before October 19, 2016: Arsenic, began April 2015, Resolved.

Show all 2 health-based violations before October 19, 2016
Contaminant Start date Status
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
Apr 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
Aug 1, 1993 Resolved

Where the water comes from

Little Sioux Water Department draws water from 2 wells.

Annual water quality report

Little Sioux Water Department 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Little Sioux Water Department for a copy.

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.