Water Quality in HARRISBURG, PA (17112)

EPA violation data for public water systems serving ZIP code 17112.

Total Violations

Health-Based

Monitoring / Reporting

Resolved

What does this mean?

84 of 88 violations have been resolved. 13 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 75 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: 95 Population served: 201,546

Violations Detail (88 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
E. COLI	Monitoring	0	N/A	Jul 26, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 26, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Dec 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2024	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 29, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 25, 2024	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 25, 2024	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 25, 2024	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jan 25, 2024	Active	N/A
Nitrite	Monitoring	N/A	N/A	Dec 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	Dec 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	Dec 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	Dec 31, 2023	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, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2023	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Di(2-ethylhexyl) phthalate	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	May 20, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	May 20, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	May 20, 2022	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	May 20, 2022	Resolved	N/A
Nitrite	Monitoring	N/A	N/A	Dec 31, 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	Dec 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	Dec 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	Dec 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	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2021	Resolved	N/A
E. COLI	Monitoring	0	N/A	Sep 25, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 25, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	May 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 25, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 25, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	May 25, 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 14, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 14, 2021	Resolved	N/A
Interim Enhanced Surface Water Treatment Rule	Monitoring	N/A	N/A	Mar 31, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(2)

E. COLI

Jul 26Resolved

E. COLI

Jul 26Resolved

2024(25)

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Chlorine

Jun 30Resolved

Chlorine

Jun 30Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

May 31Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Groundwater Rule

Jan 25Active

Groundwater Rule

Jan 25Active

Groundwater Rule

Jan 25Active

Groundwater Rule

Jan 25Active

How Does This Compare?

HARRISBURG (17112) has 88 recorded violations, including 13 health-based. 4 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 HARRISBURG, PA (17112)

What does this mean?

Violations Detail (88 total)

Lead & Copper Levels

Violation Timeline

2025(2)

2024(25)

2023(11)

2022(19)

2021(31)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code