KNOX, PA · Clarion County
KNOX WATER WORKS Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)
Violation history
Monitoring of Treatment (SWTR-Unfilt/GWR)
—Groundwater Rule
January 1, 2026 – January 31, 2026
ResolvedMonitoring, Regular
—Nitrite
January 1, 2025 – December 31, 2025
ArchivedMonitoring, Regular
—Nitrate
January 1, 2025 – December 31, 2025
ArchivedMonitoring of Treatment (SWTR-Unfilt/GWR)
—Groundwater Rule
August 1, 2024 – August 31, 2024
ResolvedMonitoring of Treatment (SWTR-Unfilt/GWR)
—Groundwater Rule
April 1, 2021 – April 30, 2021
ArchivedMonitoring of Treatment (SWTR-Unfilt/GWR)
—Groundwater Rule
February 1, 2021 – February 28, 2021
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
July 1, 2019 – September 30, 2019
ResolvedMonitoring and Reporting (DBP)
—TTHM
July 1, 2019 – September 30, 2019
ResolvedSample Siting Plan Errors (RTCR)
—Revised Total Coliform Rule
April 1, 2016 – May 3, 2016
ResolvedMonitoring of Treatment (SWTR-Unfilt/GWR)
—Groundwater Rule
September 1, 2015 – September 30, 2015
ResolvedMonitoring of Treatment (SWTR-Unfilt/GWR)
—Groundwater Rule
August 1, 2015 – August 31, 2015
ResolvedMonitoring of Treatment (SWTR-Unfilt/GWR)
—Groundwater Rule
January 1, 2015 – January 31, 2015
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
July 1, 2011 – September 30, 2011
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
October 1, 2007 – October 31, 2007
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2007 – December 4, 2007
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
December 1, 2005 – December 31, 2005
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2005 – December 31, 2005
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Selenium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Nickel
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Mercury
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Fluoride
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Chromium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Cadmium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Barium
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Arsenic
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Selenium
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Endrin
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—BHC-GAMMA
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Methoxychlor
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Toxaphene
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—2,4-D
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—2,4,5-TP
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Arsenic
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Barium
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Cadmium
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Chromium
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Fluoride
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Mercury
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Nitrate
June 24, 1988 – June 23, 1991
ArchivedMonitoring, Regular
—Selenium
June 24, 1982 – June 23, 1985
ResolvedMonitoring, Regular
—Nitrate
June 24, 1982 – June 23, 1985
ResolvedMonitoring, Regular
—2,4-D
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Arsenic
June 24, 1982 – June 23, 1985
ResolvedMonitoring, Regular
—2,4,5-TP
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Cadmium
June 24, 1982 – June 23, 1985
ResolvedMonitoring, Regular
—Endrin
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Barium
June 24, 1982 – June 23, 1985
ResolvedMonitoring, Regular
—BHC-GAMMA
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Methoxychlor
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Toxaphene
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Mercury
June 24, 1982 – June 23, 1985
ResolvedMonitoring, Regular
—Fluoride
June 24, 1982 – June 23, 1985
ResolvedMonitoring, Regular
—Chromium
June 24, 1982 – June 23, 1985
ResolvedMonitoring, 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 |
| 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, 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 |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Thallium, Total | — | 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 | Arsenic | — | 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 | Selenium | — | Resolved |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Nitrate | — | 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 |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Chromium | — | 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
Contact
KNOX WATER WORKS
814-797-1376
KNOX, PA 16232