Public water system record

Early Municipal Water Supply

Serves Early, Sac County, IA · 587 people served

Federal records show 5 health-based violations and no monitoring/reporting issues for Early Municipal Water Supply in the last ten years. The most serious issue in this window was a resolved Nitrate violation.

  • IA8114000
  • EARLY
  • IA
  • 587 served

System profile

Source water Groundwater
ZIP 50535
EPA system ID IA8114000

Verify this system on EPA ECHO →

Health-based violations, last 10 years
5
Resolved
5
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
0

Key facts

  • Early Municipal Water Supply draws water from 2 wells.
  • Highest measured level in the last 10 years: Nitrate, 13.4 mg/L, federal limit 10 mg/L (1.3 times the limit), 2022.
  • Most recent formal enforcement: compliance order (no penalty) by Iowa, February 2025.
  • Record on file since 1978, with 18 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 33 unknown out of 327 service lines.

Check whether Early Municipal Water Supply serves your address

Address suggestions by Mapbox

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
Nitrate
Contaminant limit exceeded
Measured 10.7 mg/L, federal limit 10 mg/L (1.1 times the limit)
330 Jun 1, 2025 Resolved Yes
Nitrate
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
330 May 1, 2025 Resolved Yes
Nitrate
Contaminant limit exceeded
Measured 11.77 mg/L, federal limit 10 mg/L (1.2 times the limit)
330 Apr 1, 2025 Resolved Yes
Nitrate
Contaminant limit exceeded
Measured 11.3 mg/L, federal limit 10 mg/L (1.1 times the limit)
330 Mar 1, 2025 Resolved Yes
Nitrate
Contaminant limit exceeded
Measured 13.4 mg/L, federal limit 10 mg/L (1.3 times the limit)
330 Nov 1, 2022 Resolved Yes

Full record since 1978

EPA's records for Early Municipal Water Supply go back to 1978. Before October 19, 2016 they list 18 health-based violations (11 resolved, 7 archived by EPA without a recorded fix) and 6 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 1 0
1980s 7 0
1990s 10 4
2010 to October 18, 2016 0 2
2020s 5 0

Most recent health-based violation before October 19, 2016: Nitrate (acute), began October 1993, Resolved.

Show all 18 health-based violations before October 19, 2016
Contaminant Start date Status
Nitrate (acute)
Contaminant limit exceeded
Oct 1, 1993 Resolved
Nitrate (acute)
Contaminant limit exceeded
Jul 1, 1993 Resolved
Nitrate (acute)
Contaminant limit exceeded
Apr 1, 1993 Resolved
Nitrate (acute)
Contaminant limit exceeded
Feb 1, 1993 Resolved
Nitrate (acute)
Contaminant limit exceeded
Oct 1, 1992 Resolved
Nitrate (acute)
Contaminant limit exceeded
Jul 1, 1992 Resolved
Nitrate (acute)
Contaminant limit exceeded
Apr 1, 1992 Resolved
Nitrate (acute)
Contaminant limit exceeded
Mar 1, 1992 Resolved
Nitrate (acute)
Contaminant limit exceeded
Jan 1, 1992 Resolved
Nitrate (acute)
Contaminant limit exceeded
Dec 1, 1991 Resolved
Nitrate (acute)
Contaminant limit exceeded
Oct 1, 1985 Archived
Nitrate (acute)
Contaminant limit exceeded
Oct 1, 1984 Archived
Nitrate (acute)
Contaminant limit exceeded
Oct 1, 1984 Resolved
Nitrate (acute)
Contaminant limit exceeded
Oct 1, 1983 Archived
Nitrate (acute)
Contaminant limit exceeded
Sep 1, 1981 Archived
Nitrate (acute)
Contaminant limit exceeded
May 21, 1980 Archived
Nitrate (acute)
Contaminant limit exceeded
May 21, 1980 Archived
Nitrate (acute)
Contaminant limit exceeded
Dec 27, 1978 Archived

Enforcement actions

Iowa regulators took 4 formal enforcement actions against Early Municipal Water Supply between 1986 and 2025, filed as 11 records in EPA's data. The most recent was a compliance order (no penalty) in February 2025.

Date By Action Violations covered
Feb 3, 2025 Iowa Compliance order (no penalty) 3 violations (3 health-based): Nitrate
Nov 9, 1992 Iowa Signed compliance agreement 5 violations (5 health-based): Nitrate
Mar 18, 1992 Iowa Compliance order (no penalty) 3 violations (3 health-based): Nitrate
Sep 30, 1986 Iowa Signed compliance agreement 1 violation (1 health-based): Nitrate

What the violations mean

Nitrate

5 incidents

Nitrate exceeded the federal limit

High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome

Where the water comes from

Early Municipal Water Supply draws water from 2 wells.

Annual water quality report

Early Municipal 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.