Water Quality in CONNEAUT LAKE, PA (16316)

EPA violation data for public water systems serving ZIP code 16316.

242

Total Violations

Health-Based

229

Monitoring / Reporting

237

Resolved

What does this mean?

237 of 242 violations have been resolved. 13 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 229 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: 46 Population served: 5,875

Violations Detail (242 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 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
Chlorine	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	Eye and nose irritation; stomach discomfort
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
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Jun 30, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jun 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Mar 31, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Feb 10, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2025	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Jan 10, 2025	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	Dec 31, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 10, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 10, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 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
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2024	Active	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Sep 30, 2024	Active	N/A
E. COLI	Monitoring	0	N/A	Sep 22, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
E. COLI	Monitoring	0	N/A	Sep 22, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Aug 31, 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	Monitoring	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
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 14, 2024	Active	Severe gastrointestinal illness; may be fatal in vulnerable populations
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	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 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	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	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	Apr 30, 2024	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2024	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Mar 31, 2024	Resolved	N/A
Groundwater 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	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	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
Public Notice	Monitoring	N/A	N/A	Mar 12, 2024	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Mar 12, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Feb 29, 2024	Resolved	N/A
Groundwater Rule	Health-Based	N/A	N/A	Feb 29, 2024	Resolved	N/A
Groundwater Rule	Health-Based	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
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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2024	Resolved	N/A
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	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
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
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Nickel	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Selenium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
Selenium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
Selenium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Hair or fingernail loss; numbness in fingers or toes; circulatory problems
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Beryllium, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Barium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Increase in blood pressure
Barium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Increase in blood pressure
Barium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Increase in blood pressure
Arsenic	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Arsenic	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Skin damage; circulatory system problems; increased risk of cancer
Cadmium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Kidney damage
Cadmium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Kidney damage
Cadmium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Kidney damage
Chromium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Allergic dermatitis
Chromium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Allergic dermatitis
Chromium	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Allergic dermatitis
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Nerve damage or thyroid problems
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Nerve damage or thyroid problems
CYANIDE	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Nerve damage or thyroid problems
Mercury	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Kidney damage
Mercury	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Kidney damage
Mercury	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Kidney damage
Fluoride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Bone disease (pain and tenderness of the bones); children may get mottled teeth
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Fluoride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Bone disease (pain and tenderness of the bones); children may get mottled teeth
Thallium, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Antimony, Total	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Nickel	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Nickel	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	N/A
Fluoride	Monitoring	N/A	N/A	Dec 31, 2023	Resolved	Bone disease (pain and tenderness of the bones); children may get mottled teeth
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 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
Public Notice	Monitoring	N/A	N/A	Oct 10, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 10, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 10, 2023	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 10, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 30, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	Eye and nose irritation; stomach discomfort
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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jul 31, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Apr 30, 2023	Resolved	Eye and nose irritation; stomach discomfort
Nitrite	Monitoring	N/A	N/A	Dec 31, 2022	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, 2022	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, 2022	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, 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	Dec 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	Dec 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	Dec 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	Dec 31, 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	Dec 22, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Dec 22, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 30, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Nov 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Nov 11, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Oct 31, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 26, 2022	Resolved	N/A
Public Notice	Monitoring	N/A	N/A	Oct 26, 2022	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
Combined Uranium	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	N/A
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
Radium-226	Monitoring	N/A	N/A	Sep 30, 2022	Resolved	Increased risk of cancer
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 16, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 16, 2022	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Sep 16, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 16, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 16, 2022	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Sep 16, 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
Groundwater Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Aug 31, 2022	Resolved	N/A
Groundwater 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
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
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Jun 30, 2022	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	Jul 31, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 2, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 2, 2021	Resolved	N/A
Revised Total Coliform Rule	Health-Based	N/A	N/A	Apr 2, 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
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A
Groundwater Rule	Monitoring	N/A	N/A	Feb 28, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(28)

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Revised Total Coliform Rule

Jul 31Resolved

Chlorine

Jun 30Resolved

Chlorine

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

Consumer Confidence Rule

Jun 30Resolved

Consumer Confidence Rule

Jun 30Resolved

Public Notice

Jun 10Resolved

Public Notice

Jun 10Resolved

Public Notice

May 10Resolved

Public Notice

May 10Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Public Notice

Mar 10Resolved

Public Notice

Mar 10Resolved

Public Notice

Feb 10Resolved

Public Notice

Feb 10Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Public Notice

Jan 10Resolved

Public Notice

Jan 10Resolved

2024(74)

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Dec 31Resolved

Public Notice

Dec 10Resolved

Public Notice

Dec 10Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

Public Notice

Nov 10Resolved

Public Notice

Nov 10Resolved

Lead and Copper Rule

Sep 30Active

Lead and Copper Rule

Sep 30Active

E. COLI

Sep 22Active

E. COLI

Sep 22Active

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

Revised Total Coliform Rule

Aug 31Resolved

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

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 14Active

Chlorine

Jun 30Resolved

Chlorine

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

Jun 30Resolved

Revised Total Coliform Rule

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

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

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Groundwater Rule

Mar 31Resolved

Groundwater Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Revised Total Coliform Rule

Mar 31Resolved

Public Notice

Mar 12Resolved

Public Notice

Mar 12Resolved

Groundwater Rule

Feb 29Resolved

Groundwater Rule

Feb 29Resolved

Groundwater Rule

Feb 29Resolved

Groundwater Rule

Feb 29Resolved

Groundwater Rule

Feb 29Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

2023(73)

Nitrate

Dec 31Resolved

Nitrate

Dec 31Resolved

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Dec 31Resolved

Revised Total Coliform Rule

Dec 31Resolved

Nitrite

Dec 31Resolved

Nitrite

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

Nickel

Dec 31Resolved

Selenium

Dec 31Resolved

Selenium

Dec 31Resolved

Selenium

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

Beryllium, Total

Dec 31Resolved

Barium

Dec 31Resolved

Barium

Dec 31Resolved

Barium

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Arsenic

Dec 31Resolved

Cadmium

Dec 31Resolved

Cadmium

Dec 31Resolved

Cadmium

Dec 31Resolved

Chromium

Dec 31Resolved

Chromium

Dec 31Resolved

Chromium

Dec 31Resolved

CYANIDE

Dec 31Resolved

CYANIDE

Dec 31Resolved

CYANIDE

Dec 31Resolved

Mercury

Dec 31Resolved

Mercury

Dec 31Resolved

Mercury

Dec 31Resolved

Fluoride

Dec 31Resolved

Thallium, Total

Dec 31Resolved

Thallium, Total

Dec 31Resolved

Fluoride

Dec 31Resolved

Thallium, Total

Dec 31Resolved

Antimony, Total

Dec 31Resolved

Antimony, Total

Dec 31Resolved

Antimony, Total

Dec 31Resolved

Nickel

Dec 31Resolved

Nickel

Dec 31Resolved

Fluoride

Dec 31Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Nov 30Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Revised Total Coliform Rule

Oct 31Resolved

Public Notice

Oct 10Resolved

Public Notice

Oct 10Resolved

Public Notice

Oct 10Resolved

Public Notice

Oct 10Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Revised Total Coliform Rule

Sep 30Resolved

Groundwater Rule

Jul 31Resolved

Groundwater Rule

Jul 31Resolved

Chlorine

Jul 31Resolved

Chlorine

Jul 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

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Revised Total Coliform Rule

Apr 30Resolved

Groundwater Rule

Apr 30Resolved

Groundwater Rule

Apr 30Resolved

Groundwater Rule

Apr 30Resolved

Chlorine

Apr 30Resolved

Chlorine

Apr 30Resolved

How Does This Compare?

CONNEAUT LAKE (16316) has 242 recorded violations, including 13 health-based. 5 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 CONNEAUT LAKE, PA (16316)

What does this mean?

Violations Detail (242 total)

Lead & Copper Levels

Violation Timeline

2025(28)

2024(74)

2023(73)

2022(52)

2021(15)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

Activated Carbon Filter

UV Water Purifier

Nearby ZIP Codes

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