Water Quality in LAKE HARMONY, PA (18624)

EPA violation data for public water systems serving ZIP code 18624.

199

Total Violations

Health-Based

161

Monitoring / Reporting

181

Resolved

What does this mean?

181 of 199 violations have been resolved. 38 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 161 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: 17 Population served: 2,170

Violations Detail (199 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Public Notice	Monitoring	N/A	N/A	Aug 8, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Aug 3, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jul 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jul 10, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 28, 2025	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 28, 2025	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 28, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 28, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 23, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 23, 2025	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 23, 2025	Active	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Jun 23, 2025	Active	N/A
E. COLI	Monitoring	0	N/A	May 26, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	May 26, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	May 26, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	May 26, 2025	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	May 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 11, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jan 11, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jan 11, 2025	Active	N/A
Public Notice	Monitoring	N/A	N/A	Nov 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Nov 10, 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 26, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 26, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 22, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 22, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 22, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 15, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 12, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 12, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 12, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 12, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 12, 2024	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 12, 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
E. COLI	Monitoring	0	N/A	Jul 15, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 15, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jun 15, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jun 15, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jun 15, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jun 15, 2024	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 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
Public Notice	Monitoring	N/A	N/A	Jan 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2024	Resolved	N/A
E. COLI	Monitoring	0	N/A	Dec 25, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Dec 25, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Dec 25, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Dec 25, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Oct 21, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Oct 21, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Oct 21, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Oct 21, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 23, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 23, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 23, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 23, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Aug 10, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Aug 10, 2023	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 24, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 24, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jan 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jan 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jan 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jan 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jan 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jan 7, 2023	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Dec 10, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 10, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 3, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 3, 2022	Resolved	N/A
Radium-228	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-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
Radium-226	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Increased risk of cancer
Consumer Confidence Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Gross Alpha, Excl. Radon and U	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 10, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Sep 10, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 23, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 23, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 23, 2022	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 26, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 26, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 26, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 26, 2022	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
TTHM	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2022	Resolved	N/A
Asbestos	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Asbestos	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Asbestos	Monitoring	N/A	N/A	Dec 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	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	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 30, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 30, 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
E. COLI	Monitoring	0	N/A	Sep 20, 2021	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Sep 11, 2021	Active	N/A
E. COLI	Monitoring	0	N/A	Aug 29, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 29, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 29, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Aug 29, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Aug 12, 2021	Active	N/A
Public Notice	Monitoring	N/A	N/A	Aug 12, 2021	Active	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 1, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 1, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 1, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 1, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Aug 1, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jul 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jul 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jul 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Jul 31, 2021	Resolved	N/A
E. COLI	Monitoring	0	N/A	Jul 8, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 8, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 8, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 8, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 8, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 8, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 8, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 8, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 4, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 4, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 4, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Jul 4, 2021	Resolved	Severe gastrointestinal illness; may be fatal in vulnerable populations
Public Notice	Monitoring	N/A	N/A	Jun 10, 2021	Active	N/A
Public Notice	Monitoring	N/A	N/A	Jun 10, 2021	Active	N/A
Public Notice	Monitoring	N/A	N/A	May 12, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 12, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2021	Active	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2021	Active	N/A
Public Notice	Monitoring	N/A	N/A	May 10, 2021	Active	N/A
Groundwater Rule	Health-Based	N/A	N/A	Apr 30, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Apr 30, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Apr 30, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 12, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 12, 2021	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Apr 12, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 31, 2021	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Mar 31, 2021	Resolved	N/A

Violation Timeline

2025(27)

Public Notice

Aug 8Active

Public Notice

Aug 3Active

Public Notice

Jul 10Resolved

Public Notice

Jul 10Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 28Active

Revised Total Coliform Rule

Jun 28Active

Revised Total Coliform Rule

Jun 28Resolved

Revised Total Coliform Rule

Jun 28Resolved

Revised Total Coliform Rule

Jun 23Resolved

Revised Total Coliform Rule

Jun 23Resolved

Revised Total Coliform Rule

Jun 23Active

Revised Total Coliform Rule

Jun 23Active

E. COLI

May 26Resolved

E. COLI

May 26Resolved

E. COLI

May 26Resolved

E. COLI

May 26Resolved

Public Notice

May 10Resolved

Public Notice

May 10Resolved

Public Notice

May 10Resolved

Public Notice

Apr 10Resolved

Public Notice

Apr 10Resolved

Public Notice

Apr 10Resolved

Public Notice

Jan 11Active

Public Notice

Jan 11Active

Public Notice

Jan 11Active

2024(52)

Public Notice

Nov 10Resolved

Public Notice

Nov 10Resolved

Public Notice

Nov 10Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Public Notice

Oct 26Resolved

Public Notice

Oct 26Resolved

Public Notice

Oct 10Resolved

Public Notice

Oct 10Resolved

Public Notice

Oct 10Resolved

Public Notice

Sep 22Resolved

Public Notice

Sep 22Resolved

Public Notice

Sep 22Resolved

Revised Total Coliform Rule

Sep 15Resolved

Revised Total Coliform Rule

Sep 15Resolved

Revised Total Coliform Rule

Sep 15Resolved

Revised Total Coliform Rule

Sep 15Resolved

Revised Total Coliform Rule

Sep 15Resolved

Revised Total Coliform Rule

Sep 15Resolved

Revised Total Coliform Rule

Sep 15Resolved

Revised Total Coliform Rule

Aug 12Resolved

Revised Total Coliform Rule

Aug 12Resolved

Revised Total Coliform Rule

Aug 12Resolved

Revised Total Coliform Rule

Aug 12Resolved

Revised Total Coliform Rule

Aug 12Resolved

Revised Total Coliform Rule

Aug 12Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

E. COLI

Jul 15Resolved

E. COLI

Jul 15Resolved

E. COLI

Jun 15Resolved

E. COLI

Jun 15Resolved

E. COLI

Jun 15Resolved

E. COLI

Jun 15Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Revised Total Coliform Rule

Feb 29Resolved

Public Notice

Jan 10Resolved

Public Notice

Jan 10Resolved

Public Notice

Jan 10Resolved

Public Notice

Jan 10Resolved

Public Notice

Jan 10Resolved

Public Notice

Jan 10Resolved

Public Notice

Jan 10Resolved

Public Notice

Jan 10Resolved

How Does This Compare?

LAKE HARMONY (18624) has 199 recorded violations, including 38 health-based. 18 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.

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 LAKE HARMONY, PA (18624)

What does this mean?

Violations Detail (199 total)

Violation Timeline

2025(27)

2024(52)

2023(22)

2022(36)

2021(62)

How Does This Compare?

Recommended Water Filters

Activated Carbon Filter

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code