Is KNOX WATER WORKS required to publish a Consumer Confidence Report?

Yes. KNOX WATER WORKS is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is KNOX WATER WORKS’s next Consumer Confidence Report due?

KNOX WATER WORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

KNOX, PA · Clarion County

KNOX WATER WORKS Water System

Consumer Confidence Report status

KNOX WATER WORKS must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for KNOX WATER WORKS.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Pennsylvania’s official records. Always confirm current status with Pennsylvania before making decisions based on this information.

System facts

System ID (PWSID): PA6160005
System type: Community Water System
Population served: 1,380
Service connections: 720
Ownership: local government
Water source: groundwater (wells)

KNOX WATER WORKS is one of 757 community water systems in Pennsylvania in the 501 to 3,300 people size category, serving 1,380 people from groundwater.

As of August 1, 2026, its federal record holds 59 entries between 1976 and 2026, all of which EPA lists as closed.

Of the 59, 58 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals, synthetic organic chemicals, and the Groundwater Rule.

Violation history

Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
January 1, 2026 – January 31, 2026
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Nitrate
January 1, 2025 – December 31, 2025
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
August 1, 2024 – August 31, 2024
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2022 – December 31, 2022
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
April 1, 2021 – April 30, 2021
Archived
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
February 1, 2021 – February 28, 2021
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2019 – September 30, 2019
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2019 – September 30, 2019
Resolved
Sample Siting Plan Errors (RTCR)
—
Revised Total Coliform Rule
April 1, 2016 – May 3, 2016
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
September 1, 2015 – September 30, 2015
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
August 1, 2015 – August 31, 2015
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
January 1, 2015 – January 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2011 – September 30, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2007 – October 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2007 – December 4, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2005 – December 31, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2005 – December 31, 2005
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2005 – July 5, 2005
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Selenium
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Nickel
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Mercury
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Chromium
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Barium
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Selenium
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Endrin
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
BHC-GAMMA
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Methoxychlor
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Toxaphene
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
2,4-D
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
2,4,5-TP
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Barium
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Cadmium
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Chromium
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Fluoride
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Mercury
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Nitrate
June 24, 1988 – June 23, 1991
Archived
Monitoring, Regular
—
Chromium
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
Nitrate
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
Selenium
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
2,4-D
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Arsenic
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
2,4,5-TP
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Cadmium
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
Endrin
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Barium
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
BHC-GAMMA
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Methoxychlor
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Toxaphene
June 24, 1982 – June 23, 1985
Archived
Monitoring, Regular
—
Mercury
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
Fluoride
June 24, 1982 – June 23, 1985
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
August 1, 1976 – July 31, 1980
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2026 – January 31, 2026	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2025 – December 31, 2025	Monitoring, Regular	Nitrite	—	Archived
January 1, 2025 – December 31, 2025	Monitoring, Regular	Nitrate	—	Archived
August 1, 2024 – August 31, 2024	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2022 – December 31, 2022	Monitoring, Regular	Nitrite	—	Resolved
April 1, 2021 – April 30, 2021	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Archived
February 1, 2021 – February 28, 2021	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2019 – September 30, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2019 – September 30, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2016 – May 3, 2016	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2015 – September 30, 2015	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
August 1, 2015 – August 31, 2015	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2015 – January 31, 2015	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2007 – October 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2007 – December 4, 2007	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
December 1, 2005 – December 31, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2005 – July 5, 2005	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Selenium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Nickel	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Mercury	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Chromium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Barium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Arsenic	—	Resolved
June 24, 1988 – June 23, 1991	Monitoring, Regular	Selenium	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Endrin	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	BHC-GAMMA	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Methoxychlor	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Toxaphene	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	2,4-D	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	2,4,5-TP	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Barium	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Cadmium	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Chromium	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Fluoride	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Mercury	—	Archived
June 24, 1988 – June 23, 1991	Monitoring, Regular	Nitrate	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Chromium	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Nitrate	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Selenium	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	2,4-D	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Arsenic	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	2,4,5-TP	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Cadmium	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Endrin	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Barium	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	BHC-GAMMA	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Methoxychlor	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Toxaphene	—	Archived
June 24, 1982 – June 23, 1985	Monitoring, Regular	Mercury	—	Resolved
June 24, 1982 – June 23, 1985	Monitoring, Regular	Fluoride	—	Resolved
August 1, 1976 – July 31, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

March 11, 2026State Formal Notice of Violation issued1 linked violation
March 11, 2026State Violation/Reminder Notice1 linked violation
March 11, 2026State Compliance achieved1 linked violation
February 11, 2026State Public Notification requested2 linked violations
February 11, 2026State Formal Notice of Violation issued2 linked violations
December 27, 2024State Compliance achieved1 linked violation
October 10, 2024State Formal Notice of Violation issued1 linked violation
October 10, 2024State Public Notification requested1 linked violation
June 5, 2023State Public Notification received2 linked violations
February 8, 2023State Compliance achieved2 linked violations
February 8, 2023State Violation/Reminder Notice2 linked violations
February 8, 2023State Public Notification requested2 linked violations
April 12, 2021State Compliance achieved1 linked violation
April 12, 2021State Violation/Reminder Notice1 linked violation
December 20, 2019State Compliance achieved2 linked violations
December 20, 2019State Public Notification requested2 linked violations
November 13, 2019State Violation/Reminder Notice2 linked violations
May 3, 2016State Compliance achieved1 linked violation
May 3, 2016State Formal Notice of Violation issued1 linked violation
October 28, 2015State Violation/Reminder Notice1 linked violation
October 28, 2015State Compliance achieved1 linked violation
October 15, 2015State Violation/Reminder Notice1 linked violation
October 15, 2015State Compliance achieved1 linked violation
February 24, 2015State Violation/Reminder Notice1 linked violation
February 24, 2015State Compliance achieved1 linked violation
November 1, 2011State Violation/Reminder Notice1 linked violation
November 1, 2011State Compliance achieved1 linked violation
July 31, 2008State Public Notification received2 linked violations
December 4, 2007State Violation/Reminder Notice2 linked violations
December 4, 2007State Public Notification requested2 linked violations
December 4, 2007State Compliance achieved2 linked violations
March 30, 2006State Violation/Reminder Notice2 linked violations
March 30, 2006State Consent Decree/Judgement2 linked violations
March 30, 2006State Compliance achieved2 linked violations
July 11, 2005State Compliance achieved12 linked violations
July 11, 2005State Public Notification received12 linked violations
July 5, 2005State Compliance achieved1 linked violation
July 5, 2005State Public Notification received1 linked violation
May 13, 2005State Formal Notice of Violation issued13 linked violations
May 13, 2005State Public Notification requested13 linked violations
July 31, 1991State Formal Notice of Violation issued6 linked violations
July 31, 1991State Violation/Reminder Notice8 linked violations
November 30, 1989State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
October 8, 1986State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 11, 1986State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 13, 1986State Compliance achieved8 linked violations
October 21, 1985State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 4, 1985State Violation/Reminder Notice6 linked violations
September 30, 1982Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record
May 14, 1982State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Common questions

Is KNOX WATER WORKS required to publish a Consumer Confidence Report?: Yes. KNOX WATER WORKS is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is KNOX WATER WORKS’s next Consumer Confidence Report due?: KNOX WATER WORKS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does KNOX WATER WORKS have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for KNOX WATER WORKS.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

KNOX WATER WORKS

814-797-1376

KNOX, PA 16232