Public water system record

Gilmore City Waterworks

Serves Gilmore City, Pocahontas County and Humboldt County, IA · 487 people served

Federal records show 1 health-based violation and no monitoring/reporting issues for Gilmore City Waterworks in the last ten years. The most serious issue in this window was a resolved Nitrate violation.

  • IA7607088
  • GILMORE CITY
  • IA
  • 487 served

System profile

Source water Groundwater
ZIP 50541
EPA system ID IA7607088

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
0

Key facts

  • Gilmore City Waterworks draws water from 2 wells.
  • Highest measured level in the last 10 years: Nitrate, 23.9 mg/L, federal limit 10 mg/L (2.4 times the limit), 2022.
  • Most recent formal enforcement: signed compliance agreement by Iowa, November 2011.
  • Record on file since 1983, with 6 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 297 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
Nitrate
Contaminant limit exceeded
Measured 23.9 mg/L, federal limit 10 mg/L (2.4 times the limit)
330 Jun 1, 2022 Resolved Yes

Full record since 1983

EPA's records for Gilmore City Waterworks go back to 1983. Before October 19, 2016 they list 6 health-based violations (5 resolved, 1 archived by EPA without a recorded fix) and 28 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 1 7
1990s 5 15
2000s 0 2
2010 to October 18, 2016 0 4
2020s 1 0

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

Show all 6 health-based violations before October 19, 2016
Contaminant Start date Status
Nitrate (acute)
Contaminant limit exceeded
Dec 1, 1993 Resolved
Nitrate (acute)
Contaminant limit exceeded
Dec 1, 1993 Resolved
Nitrate (acute)
Contaminant limit exceeded
Dec 1, 1993 Resolved
Nitrate (acute)
Contaminant limit exceeded
Oct 1, 1993 Resolved
Nitrate (acute)
Contaminant limit exceeded
Jul 1, 1991 Resolved
Nitrate (acute)
Contaminant limit exceeded
Oct 1, 1983 Archived

Enforcement actions

Iowa regulators took 7 formal enforcement actions against Gilmore City Waterworks between 1991 and 2011, filed as 33 records in EPA's data. The most recent was a signed compliance agreement in November 2011.

Date By Action Violations covered
Nov 30, 2011 Iowa Signed compliance agreement 1 violation: Lead and Copper Rule
Nov 16, 2007 Iowa Signed compliance agreement 1 violation: Haloacetic Acids (HAA5)
Jan 10, 1994 Iowa Signed compliance agreement 6 violations (6 health-based): Nitrate
May 24, 1993 Iowa Signed compliance agreement 2 violations (2 health-based): Nitrate
Feb 22, 1993 Iowa Compliance order with a penalty 25 violations (2 health-based): Nitrate, Styrene, DICHLOROMETHANE, Tetrachloroethylene, CHLOROBENZENE
Jul 1, 1991 Iowa Compliance order (no penalty) 9 violations: Mercury, Barium, Cadmium, Arsenic, Fluoride
Jul 1, 1991 Iowa Administrative penalty 1 violation: Barium

What the violations mean

Nitrate

1 incident

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

Gilmore City Waterworks draws water from 2 wells.

Annual water quality report

Gilmore City Waterworks 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 Gilmore City Waterworks 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.