Water Quality in DYERSVILLE, IA (52040)

EPA violation data for public water systems serving ZIP code 52040.

137

Total Violations

Health-Based

125

Monitoring / Reporting

135

Resolved

What does this mean?

135 of 137 violations have been resolved. 12 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 125 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 15 Population served: 5,404

Violations Detail (137 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Nitrate	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Public Notice	Monitoring	N/A	N/A	Sep 18, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 18, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 18, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 18, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 30, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 30, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 30, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 30, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 25, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 25, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 25, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 8, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 8, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 8, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 8, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 25, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 25, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 25, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 25, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 11, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 14, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 13, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 13, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 13, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 13, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 13, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 13, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 12, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 12, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 12, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 12, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 12, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 12, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 17, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 17, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 17, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 17, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 17, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 17, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 14, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 20, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 20, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 20, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 20, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 20, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 20, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 16, 2022	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 16, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 13, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 13, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 13, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 13, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Public Notice	Monitoring	N/A	N/A	Jun 14, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 14, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 14, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 14, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 24, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 24, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 24, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 24, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 22, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 22, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 22, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 22, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 17, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 17, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 17, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 17, 2021	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 15, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 15, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 15, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 15, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Combined Radium (-226 and -228)	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2021	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Mar 31, 2021	Active	N/A

Lead & Copper Levels

Violation Timeline

2025(4)

Nitrate

Jul 31Resolved

Nitrate

Jul 31Resolved

Nitrate

Jul 31Resolved

Nitrate

Jul 31Resolved

2024(15)

Public Notice

Sep 18Resolved

Public Notice

Sep 18Resolved

Public Notice

Sep 18Resolved

Public Notice

Sep 18Resolved

Public Notice

Aug 30Resolved

Public Notice

Aug 30Resolved

Public Notice

Aug 30Resolved

Public Notice

Aug 30Resolved

Public Notice

May 25Resolved

Public Notice

May 25Resolved

Public Notice

May 25Resolved

Public Notice

Mar 8Resolved

Public Notice

Mar 8Resolved

Public Notice

Mar 8Resolved

Public Notice

Mar 8Resolved

How Does This Compare?

DYERSVILLE (52040) has 137 recorded violations, including 12 health-based. 2 remain unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

One of the few filtration methods effective at removing nitrates and nitrites. Essential for households with infants.

Targets:Nitrate, Nitrite, Dissolved Solids

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Water Quality in DYERSVILLE, IA (52040)

What does this mean?

Violations Detail (137 total)

Lead & Copper Levels

Violation Timeline

2025(4)

2024(15)

2023(32)

2022(64)

2021(22)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code