Water Quality in COATESVILLE, PA (19320)

EPA violation data for public water systems serving ZIP code 19320.

154

Total Violations

Health-Based

134

Monitoring / Reporting

146

Resolved

What does this mean?

146 of 154 violations have been resolved. 20 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 134 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: 71 Population served: 68,022

Violations Detail (154 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2025	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2025	Active	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 12, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 12, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 12, 2025	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	May 31, 2025	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	May 31, 2025	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	May 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 2, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 2, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2024	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2024	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Nitrate	Health-Based	N/A	14.4	Sep 30, 2024	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Health-Based	N/A	14.4	Sep 30, 2024	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Health-Based	N/A	14.4	Sep 30, 2024	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 25, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 25, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 25, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 25, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 27, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 27, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 27, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 27, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 1, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 1, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 1, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 1, 2024	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Oct 7, 2023	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Oct 7, 2023	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2023	Active	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Chlorite	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	Anemia; nervous system effects in infants and young children
Chlorite	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	Anemia; nervous system effects in infants and young children
Chlorite	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	Anemia; nervous system effects in infants and young children
Chlorite	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	Anemia; nervous system effects in infants and young children
Chlorine dioxide	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Chlorine dioxide	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Chlorine dioxide	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Chlorine dioxide	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Nitrite	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrate	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Groundwater Rule	Monitoring	N/A	N/A	Mar 29, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 29, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 29, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 29, 2023	Resolved	N/A
Radium-226	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Increased risk of cancer
Radium-226	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Increased risk of cancer
Radium-228	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Increased risk of cancer
Radium-228	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Increased risk of cancer
Public Notice	Monitoring	N/A	N/A	Sep 12, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 12, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 12, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 12, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Aug 31, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Aug 31, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Aug 31, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Aug 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 27, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 27, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 27, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 27, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 9, 2021	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 2, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 2, 2021	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Nitrate	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Nitrite	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	Infants below the age of six months could become seriously ill (blue baby syndrome); shortness of breath
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 22, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 22, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 22, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 22, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(33)

Lead and Copper Rule

Sep 30Active

Lead and Copper Rule

Sep 30Active

Groundwater Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

Revised Total Coliform Rule

Jun 12Resolved

Revised Total Coliform Rule

Jun 12Resolved

Public Notice

Jun 12Resolved

Groundwater Rule

May 31Resolved

Groundwater Rule

May 31Resolved

Groundwater Rule

May 31Resolved

Revised Total Coliform Rule

Apr 2Resolved

Revised Total Coliform Rule

Apr 2Resolved

Groundwater Rule

Mar 31Resolved

Groundwater Rule

Mar 31Resolved

Groundwater Rule

Mar 31Resolved

Groundwater Rule

Mar 31Resolved

Groundwater Rule

Mar 31Resolved

Groundwater Rule

Mar 31Resolved

Groundwater Rule

Mar 31Resolved

Groundwater Rule

Mar 31Resolved

2024(34)

Lead and Copper Rule

Dec 31Active

Lead and Copper Rule

Dec 31Active

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Nitrate

Sep 30Resolved

Nitrate

Sep 30Resolved

Nitrate

Sep 30Resolved

Revised Total Coliform Rule

Aug 25Resolved

Revised Total Coliform Rule

Aug 25Resolved

Revised Total Coliform Rule

Aug 25Resolved

Revised Total Coliform Rule

Aug 25Resolved

Groundwater Rule

Jul 31Resolved

Groundwater Rule

Jul 31Resolved

Groundwater Rule

Jul 31Resolved

Groundwater Rule

Jul 31Resolved

E. COLI

Jul 27Resolved

E. COLI

Jul 27Resolved

E. COLI

Jul 27Resolved

E. COLI

Jul 27Resolved

Consumer Confidence Rule

Jun 30Resolved

Groundwater Rule

May 1Resolved

Groundwater Rule

May 1Resolved

Groundwater Rule

May 1Resolved

Groundwater Rule

May 1Resolved

Lead and Copper Rule

Mar 31Resolved

Lead and Copper Rule

Mar 31Resolved

Groundwater Rule

Feb 29Resolved

Groundwater Rule

Feb 29Resolved

Groundwater Rule

Feb 29Resolved

Groundwater Rule

Jan 31Resolved

Groundwater Rule

Jan 31Resolved

Groundwater Rule

Jan 31Resolved

How Does This Compare?

COATESVILLE (19320) has 154 recorded violations, including 20 health-based. 8 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

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 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 COATESVILLE, PA (19320)

What does this mean?

Violations Detail (154 total)

Lead & Copper Levels

Violation Timeline

2025(33)

2024(34)

2023(38)

2022(12)

2021(37)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

Activated Carbon Filter

UV Water Purifier

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