MASONTOWN, PA · Fayette County
MASONTOWN MUNI 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)
- PA5260013
- System type
- Community Water System
- Population served
- 3,841
- Service connections
- 1,875
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Monitoring and Reporting (DBP)
—TTHM
January 1, 2024 – March 31, 2024
ResolvedMonitoring of Treatment (SWTR-Unfilt/GWR)
—Surface Water Treatment Rule
August 1, 2023 – August 31, 2023
ResolvedMonitoring and Reporting (DBP)
—Chlorine
August 1, 2023 – August 31, 2023
ResolvedMonitoring and Reporting (DBP)
—TTHM
July 1, 2021 – September 30, 2021
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
April 1, 2020 – June 30, 2020
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
January 1, 2020 – March 31, 2020
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
October 1, 2019 – December 31, 2019
ResolvedMaximum Contaminant Level Violation, Average
Health-basedTotal Haloacetic Acids (HAA5)
July 1, 2019 – September 30, 2019
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2019 – March 31, 2019
ResolvedMonitoring and Reporting (DBP)
—TTHM
October 1, 2018 – December 31, 2018
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
April 11, 2018 – August 7, 2018
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
April 11, 2018 – August 7, 2018
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
February 10, 2017 – February 13, 2017
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2017 – March 31, 2017
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2017 – March 31, 2017
ResolvedTreatment Technique Precursor Removal
Health-basedCARBON, TOTAL
October 1, 2016 – December 31, 2016
ResolvedMonitoring and Reporting (DBP)
—CARBON, TOTAL
October 1, 2016 – December 31, 2016
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2015 – March 31, 2015
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2015 – March 31, 2015
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2012 – September 21, 2012
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
April 11, 2012 – May 24, 2012
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
April 11, 2012 – May 24, 2012
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
April 11, 2012 – May 24, 2012
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
March 1, 2011 – March 31, 2011
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
February 1, 2011 – February 28, 2011
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
February 1, 2011 – February 28, 2011
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
May 1, 2010 – May 31, 2010
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
May 1, 2010 – May 31, 2010
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
April 1, 2010 – April 30, 2010
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
April 1, 2010 – April 30, 2010
ResolvedMonitoring, Regular
—LASSO
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—Simazine
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
January 1, 2010 – January 31, 2010
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2010 – December 31, 2010
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
October 1, 2009 – October 31, 2009
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
October 1, 2009 – October 31, 2009
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
August 1, 2009 – August 31, 2009
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
August 1, 2009 – August 31, 2009
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
July 1, 2009 – July 31, 2009
ResolvedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2009 – September 30, 2009
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
July 1, 2009 – July 31, 2009
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
June 1, 2009 – June 30, 2009
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
June 1, 2009 – June 30, 2009
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
May 1, 2009 – May 31, 2009
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
May 1, 2009 – May 31, 2009
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
April 1, 2009 – April 30, 2009
ResolvedMonitoring and Reporting (DBP)
—Chlorine
April 1, 2009 – June 30, 2009
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
April 1, 2009 – April 30, 2009
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
March 1, 2009 – March 31, 2009
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
March 1, 2009 – March 31, 2009
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
January 1, 2009 – January 31, 2009
ResolvedMonitoring and Reporting (DBP)
—Chlorine
January 1, 2009 – March 31, 2009
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
January 1, 2009 – January 31, 2009
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
December 1, 2008 – December 31, 2008
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
December 1, 2008 – December 31, 2008
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
November 1, 2008 – November 30, 2008
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2008 – November 30, 2008
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
November 1, 2008 – November 30, 2008
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
October 1, 2008 – October 31, 2008
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2008 – December 31, 2008
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
October 1, 2008 – October 31, 2008
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
September 1, 2008 – September 30, 2008
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
September 1, 2008 – September 30, 2008
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
August 1, 2008 – August 31, 2008
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
August 1, 2008 – August 31, 2008
ResolvedMonitoring and Reporting (DBP)
—CARBON, TOTAL
July 1, 2008 – September 30, 2008
ResolvedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2008 – September 30, 2008
ResolvedMonitoring and Reporting (DBP)
—CARBON, TOTAL
July 1, 2008 – September 30, 2008
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
June 1, 2008 – June 30, 2008
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
June 1, 2008 – June 30, 2008
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
June 1, 2008 – June 30, 2008
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
May 1, 2008 – May 31, 2008
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
May 1, 2008 – May 31, 2008
ResolvedMonitoring and Reporting (DBP)
—Chlorine
April 1, 2008 – June 30, 2008
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
February 1, 2008 – February 29, 2008
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
February 1, 2008 – February 29, 2008
ResolvedMonitoring and Reporting (DBP)
—Chlorine
January 1, 2008 – March 27, 2008
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
September 1, 2007 – September 30, 2007
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
September 1, 2007 – September 30, 2007
ResolvedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2007 – September 30, 2007
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
July 1, 2007 – July 31, 2007
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
July 1, 2007 – July 31, 2007
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
June 1, 2007 – June 30, 2007
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
June 1, 2007 – June 30, 2007
ResolvedMonitoring and Reporting (DBP)
—Chlorine
April 1, 2007 – June 30, 2007
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
September 1, 2006 – September 30, 2006
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
September 1, 2006 – September 30, 2006
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
August 1, 2006 – August 31, 2006
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
August 1, 2006 – August 31, 2006
ResolvedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2006 – September 30, 2006
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2006 – September 26, 2006
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
June 1, 2006 – June 30, 2006
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
June 1, 2006 – June 30, 2006
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
May 1, 2006 – May 31, 2006
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
May 1, 2006 – May 31, 2006
ResolvedMonitoring and Reporting (DBP)
—Chlorine
April 1, 2006 – June 30, 2006
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
December 1, 2005 – December 31, 2005
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
December 1, 2005 – December 31, 2005
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
November 1, 2005 – November 30, 2005
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
November 1, 2005 – November 30, 2005
ResolvedMonitoring and Reporting (DBP)
—Chlorine
October 1, 2005 – December 31, 2005
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
August 1, 2005 – August 31, 2005
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
August 1, 2005 – August 31, 2005
ResolvedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2005 – September 30, 2005
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
June 1, 2005 – June 30, 2005
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
June 1, 2005 – June 30, 2005
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
April 1, 2005 – April 30, 2005
ResolvedMonitoring and Reporting (DBP)
—Chlorine
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Turbidity (Enhanced SWTR)
—Interim Enhanced Surface Water Treatment Rule
April 1, 2005 – April 30, 2005
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 2004 – September 30, 2004
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
August 1, 2004 – August 31, 2004
ResolvedMonitoring and Reporting (DBP)
—Chlorine
July 1, 2004 – September 30, 2004
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—LASSO
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Simazine
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2004 – December 31, 2004
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
December 1, 2003 – December 31, 2003
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
October 1, 2003 – October 31, 2003
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 2003 – September 30, 2003
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 2003 – August 31, 2003
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
July 1, 2003 – July 31, 2003
ResolvedMonitoring, Regular
—Nitrate
January 1, 2003 – December 31, 2003
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—Styrene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—Ethylbenzene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—Toluene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—Benzene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—CHLOROBENZENE
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—Tetrachloroethylene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—Trichloroethylene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—1,2-Dichloropropane
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—Carbon tetrachloride
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—1,2-Dichloroethane
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—p-Dichlorobenzene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—o-Dichlorobenzene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—DICHLOROMETHANE
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—Xylenes, Total
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
April 1, 2002 – June 30, 2002
ResolvedMonitoring, Regular
—Nitrate
January 1, 2002 – December 31, 2002
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
November 1, 2001 – November 30, 2001
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
September 1, 2001 – September 30, 2001
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
August 1, 2001 – August 31, 2001
ResolvedTreatment Technique (SWTR and GWR)
Health-basedSurface Water Treatment Rule
July 1, 2001 – July 31, 2001
ResolvedMonitoring, Regular
—Benzene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—Styrene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 1999 – December 31, 1999
ResolvedMonitoring, Regular
—Toluene
January 1, 1999 – December 31, 1999
ResolvedMonitoring of Treatment (SWTR-Filter)
—Surface Water Treatment Rule
June 1, 1994 – June 30, 1994
ResolvedMonitoring, Regular
—Nitrate
July 1, 1993 – September 30, 1993
ResolvedMonitoring, Regular
—Nitrate
April 1, 1993 – June 30, 1993
ResolvedMonitoring, Regular
—Arsenic
June 25, 1982 – June 24, 1983
ArchivedMonitoring, Regular
—Methoxychlor
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—2,4,5-TP
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—2,4-D
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Endrin
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—Toxaphene
June 24, 1982 – June 23, 1985
ArchivedMonitoring, Regular
—BHC-GAMMA
June 24, 1982 – June 23, 1985
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, 2024 – March 31, 2024 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| August 1, 2023 – August 31, 2023 | Monitoring of Treatment (SWTR-Unfilt/GWR) | Surface Water Treatment Rule | — | Resolved |
| August 1, 2023 – August 31, 2023 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| July 1, 2021 – September 30, 2021 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| April 1, 2020 – June 30, 2020 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| January 1, 2020 – March 31, 2020 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| October 1, 2019 – December 31, 2019 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| July 1, 2019 – September 30, 2019 | Maximum Contaminant Level Violation, Average | Total Haloacetic Acids (HAA5) | Health-based | Resolved |
| January 1, 2019 – March 31, 2019 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2018 – December 31, 2018 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| April 11, 2018 – August 7, 2018 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| April 11, 2018 – August 7, 2018 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| February 10, 2017 – February 13, 2017 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| January 1, 2017 – March 31, 2017 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2017 – March 31, 2017 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2016 – December 31, 2016 | Treatment Technique Precursor Removal | CARBON, TOTAL | Health-based | Resolved |
| October 1, 2016 – December 31, 2016 | Monitoring and Reporting (DBP) | CARBON, TOTAL | — | Resolved |
| January 1, 2015 – March 31, 2015 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2015 – March 31, 2015 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| July 1, 2012 – September 21, 2012 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| April 11, 2012 – May 24, 2012 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| April 11, 2012 – May 24, 2012 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| April 11, 2012 – May 24, 2012 | Public Notification Violation for NPDWR Violation | Public Notice | — | Resolved |
| March 1, 2011 – March 31, 2011 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| February 1, 2011 – February 28, 2011 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| February 1, 2011 – February 28, 2011 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| May 1, 2010 – May 31, 2010 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| May 1, 2010 – May 31, 2010 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| April 1, 2010 – April 30, 2010 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| April 1, 2010 – April 30, 2010 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2010 – January 31, 2010 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| October 1, 2009 – October 31, 2009 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| October 1, 2009 – October 31, 2009 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| August 1, 2009 – August 31, 2009 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| August 1, 2009 – August 31, 2009 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| July 1, 2009 – July 31, 2009 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| July 1, 2009 – September 30, 2009 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| July 1, 2009 – July 31, 2009 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| June 1, 2009 – June 30, 2009 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| June 1, 2009 – June 30, 2009 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| May 1, 2009 – May 31, 2009 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| May 1, 2009 – May 31, 2009 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| April 1, 2009 – April 30, 2009 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| April 1, 2009 – June 30, 2009 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| April 1, 2009 – April 30, 2009 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| March 1, 2009 – March 31, 2009 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| March 1, 2009 – March 31, 2009 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| January 1, 2009 – January 31, 2009 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| January 1, 2009 – March 31, 2009 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| January 1, 2009 – January 31, 2009 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| December 1, 2008 – December 31, 2008 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| December 1, 2008 – December 31, 2008 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| November 1, 2008 – November 30, 2008 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| November 1, 2008 – November 30, 2008 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| November 1, 2008 – November 30, 2008 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| October 1, 2008 – October 31, 2008 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| October 1, 2008 – December 31, 2008 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| October 1, 2008 – October 31, 2008 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| September 1, 2008 – September 30, 2008 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| September 1, 2008 – September 30, 2008 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| August 1, 2008 – August 31, 2008 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| August 1, 2008 – August 31, 2008 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| July 1, 2008 – September 30, 2008 | Monitoring and Reporting (DBP) | CARBON, TOTAL | — | Resolved |
| July 1, 2008 – September 30, 2008 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| July 1, 2008 – September 30, 2008 | Monitoring and Reporting (DBP) | CARBON, TOTAL | — | Resolved |
| June 1, 2008 – June 30, 2008 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| June 1, 2008 – June 30, 2008 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| June 1, 2008 – June 30, 2008 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| May 1, 2008 – May 31, 2008 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| May 1, 2008 – May 31, 2008 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| April 1, 2008 – June 30, 2008 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| February 1, 2008 – February 29, 2008 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| February 1, 2008 – February 29, 2008 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| January 1, 2008 – March 27, 2008 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| September 1, 2007 – September 30, 2007 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| September 1, 2007 – September 30, 2007 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| July 1, 2007 – September 30, 2007 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| July 1, 2007 – July 31, 2007 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| July 1, 2007 – July 31, 2007 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| June 1, 2007 – June 30, 2007 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| June 1, 2007 – June 30, 2007 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| April 1, 2007 – June 30, 2007 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| September 1, 2006 – September 30, 2006 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| September 1, 2006 – September 30, 2006 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| August 1, 2006 – August 31, 2006 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| August 1, 2006 – August 31, 2006 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| July 1, 2006 – September 30, 2006 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| July 1, 2006 – September 26, 2006 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| June 1, 2006 – June 30, 2006 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| June 1, 2006 – June 30, 2006 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| May 1, 2006 – May 31, 2006 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| May 1, 2006 – May 31, 2006 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| April 1, 2006 – June 30, 2006 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| December 1, 2005 – December 31, 2005 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| December 1, 2005 – December 31, 2005 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| November 1, 2005 – November 30, 2005 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| November 1, 2005 – November 30, 2005 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| October 1, 2005 – December 31, 2005 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| August 1, 2005 – August 31, 2005 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| August 1, 2005 – August 31, 2005 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| July 1, 2005 – September 30, 2005 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| June 1, 2005 – June 30, 2005 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| June 1, 2005 – June 30, 2005 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| April 1, 2005 – April 30, 2005 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| April 1, 2005 – June 30, 2005 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| April 1, 2005 – April 30, 2005 | Monitoring, Turbidity (Enhanced SWTR) | Interim Enhanced Surface Water Treatment Rule | — | Resolved |
| September 1, 2004 – September 30, 2004 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 2004 – August 31, 2004 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| July 1, 2004 – September 30, 2004 | Monitoring and Reporting (DBP) | Chlorine | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| December 1, 2003 – December 31, 2003 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| October 1, 2003 – October 31, 2003 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| September 1, 2003 – September 30, 2003 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 2003 – August 31, 2003 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 2003 – July 31, 2003 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Nitrate | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | Styrene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | Toluene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | Benzene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| April 1, 2002 – June 30, 2002 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2002 – December 31, 2002 | Monitoring, Regular | Nitrate | — | Resolved |
| November 1, 2001 – November 30, 2001 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| September 1, 2001 – September 30, 2001 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| August 1, 2001 – August 31, 2001 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| July 1, 2001 – July 31, 2001 | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Health-based | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 1999 – December 31, 1999 | Monitoring, Regular | Toluene | — | Resolved |
| June 1, 1994 – June 30, 1994 | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | — | Resolved |
| July 1, 1993 – September 30, 1993 | Monitoring, Regular | Nitrate | — | Resolved |
| April 1, 1993 – June 30, 1993 | Monitoring, Regular | Nitrate | — | Resolved |
| June 25, 1982 – June 24, 1983 | Monitoring, Regular | Arsenic | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Methoxychlor | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | 2,4,5-TP | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | 2,4-D | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Endrin | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | Toxaphene | — | Archived |
| June 24, 1982 – June 23, 1985 | Monitoring, Regular | BHC-GAMMA | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- December 8, 2025State Compliance achieved2 linked violations
- May 14, 2024State Formal Notice of Violation issued2 linked violations
- May 14, 2024State Public Notification requested2 linked violations
- November 20, 2023State Compliance achieved2 linked violations
- October 10, 2023State Public Notification requested2 linked violations
- October 10, 2023State Formal Notice of Violation issued2 linked violations
- June 8, 2022State Compliance achieved1 linked violation
- January 7, 2022State Violation/Reminder Notice1 linked violation
- August 24, 2020State Compliance achieved3 linked violations
- August 24, 2020State Compliance achieved1 linked violation
- August 24, 2020State Public Notification received1 linked violation
- August 24, 2020State Public Notification requested1 linked violation
- August 24, 2020State Formal Notice of Violation issued1 linked violation
- August 24, 2020State Public Notification received1 linked violation
- August 24, 2020State Public Notification requested1 linked violation
- August 24, 2020State Formal Notice of Violation issued1 linked violation
- June 26, 2020State Public Notification requested1 linked violation
- June 26, 2020State Formal Notice of Violation issued1 linked violation
- June 24, 2020State Public Notification requested1 linked violation
- June 24, 2020State Public Notification received1 linked violation
- June 24, 2020State Formal Notice of Violation issued1 linked violation
- July 3, 2019State Public Notification received2 linked violations
- June 21, 2019State Compliance achieved1 linked violation
- May 20, 2019State Public Notification requested1 linked violation
- May 20, 2019State Formal Notice of Violation issued1 linked violation
- April 8, 2019State Compliance achieved1 linked violation
- January 30, 2019State Violation/Reminder Notice1 linked violation
- August 7, 2018State Compliance achieved2 linked violations
- June 12, 2018State Formal Notice of Violation issued2 linked violations
- June 12, 2018State Public Notification requested2 linked violations
- May 22, 2017State Violation/Reminder Notice2 linked violations
- May 22, 2017State Compliance achieved2 linked violations
- May 22, 2017State Compliance achieved2 linked violations
- May 22, 2017State Violation/Reminder Notice2 linked violations
- February 13, 2017State Compliance achieved3 linked violations
- February 13, 2017State Formal Notice of Violation issued3 linked violations
- June 30, 2015State Compliance achieved2 linked violations
- May 11, 2015State Violation/Reminder Notice2 linked violations
- September 21, 2012State Compliance achieved1 linked violation
- August 27, 2012State Violation/Reminder Notice1 linked violation
- May 24, 2012State Formal Notice of Violation issued3 linked violations
- May 24, 2012State Compliance achieved3 linked violations
- May 24, 2012State Violation/Reminder Notice3 linked violations
- July 7, 2011State Compliance achieved3 linked violations
- July 7, 2011State Compliance achieved5 linked violations
- May 11, 2011State Formal Notice of Violation issued3 linked violations
- May 11, 2011State Formal Notice of Violation issued5 linked violations
- May 4, 2011State Violation/Reminder Notice5 linked violations
- May 4, 2011State Violation/Reminder Notice3 linked violations
- February 9, 2011State Compliance achieved10 linked violations
- November 8, 2010State Violation/Reminder Notice10 linked violations
- September 3, 2010State Compliance achieved3 linked violations
- June 30, 2010State Compliance achieved2 linked violations
- June 30, 2010State Formal Notice of Violation issued2 linked violations
- May 26, 2010State Compliance achieved2 linked violations
- March 30, 2010State Compliance achieved3 linked violations
- December 3, 2009State Violation/Reminder Notice1 linked violation
- December 3, 2009State Compliance achieved4 linked violations
- October 5, 2009State Compliance achieved3 linked violations
- August 26, 2009State Compliance achieved2 linked violations
- July 30, 2009State Compliance achieved3 linked violations
- June 29, 2009State Compliance achieved2 linked violations
- May 26, 2009State Compliance achieved2 linked violations
- April 24, 2009State Compliance achieved3 linked violations
- March 24, 2009State Compliance achieved2 linked violations
- February 17, 2009State Compliance achieved3 linked violations
- January 20, 2009State Compliance achieved3 linked violations
- December 9, 2008State Compliance achieved3 linked violations
- December 9, 2008State Compliance achieved1 linked violation
- November 20, 2008State Violation/Reminder Notice1 linked violation
- November 20, 2008State Violation/Reminder Notice1 linked violation
- November 20, 2008State Compliance achieved3 linked violations
- October 1, 2008State Compliance achieved2 linked violations
- August 8, 2008State Compliance achieved4 linked violations
- June 27, 2008State Compliance achieved2 linked violations
- April 28, 2008State Compliance achieved1 linked violation
- March 27, 2008State Compliance achieved3 linked violations
- November 19, 2007State Compliance achieved3 linked violations
- August 22, 2007State Compliance achieved2 linked violations
- July 27, 2007State Compliance achieved3 linked violations
- November 2, 2006State Compliance achieved3 linked violations
- September 26, 2006State Violation/Reminder Notice1 linked violation
- September 26, 2006State Compliance achieved3 linked violations
- August 7, 2006State Compliance achieved3 linked violations
- June 30, 2006State Compliance achieved2 linked violations
- February 8, 2006State Consent Decree/Judgement3 linked violations
- February 8, 2006State Compliance achieved3 linked violations
- January 13, 2006State Consent Decree/Judgement2 linked violations
- January 13, 2006State Compliance achieved2 linked violations
- October 17, 2005State Compliance achieved3 linked violations
- October 17, 2005State Consent Decree/Judgement3 linked violations
- September 13, 2005State Compliance achieved3 linked violations
- September 13, 2005State Consent Decree/Judgement3 linked violations
- June 23, 2005State Compliance achieved12 linked violations
- June 23, 2005State Consent Decree/Judgement2 linked violations
- April 14, 2005State Violation/Reminder Notice10 linked violations
- April 8, 2005State Compliance achieved3 linked violations
- April 8, 2005State Violation/Reminder Notice3 linked violations
- January 4, 2005State Consent Decree/Judgement3 linked violations
- August 5, 2004State Compliance achieved1 linked violation
- August 3, 2004State Compliance achieved1 linked violation
- March 4, 2004State Compliance Meeting conducted1 linked violation
- February 20, 2004State Compliance achieved1 linked violation
- February 20, 2004State Consent Decree/Judgement1 linked violation
- February 20, 2004State Violation/Reminder Notice1 linked violation
- February 3, 2004State Violation/Reminder Notice1 linked violation
- February 3, 2004State Compliance achieved1 linked violation
- February 3, 2004State Consent Decree/Judgement1 linked violation
- January 27, 2004State Consent Decree/Judgement1 linked violation
- January 27, 2004State Compliance achieved1 linked violation
- January 27, 2004State Violation/Reminder Notice1 linked violation
- December 5, 2003State Compliance achieved2 linked violations
- December 5, 2003State Formal Notice of Violation issued2 linked violations
- December 5, 2003State Violation/Reminder Notice2 linked violations
- December 5, 2003State Consent Decree/Judgement2 linked violations
- July 8, 2003State Compliance achieved1 linked violation
- July 8, 2003State Public Notification received1 linked violation
- March 24, 2003State Violation/Reminder Notice1 linked violation
- March 24, 2003State Public Notification requested1 linked violation
- February 20, 2003State Compliance achieved20 linked violations
- May 24, 1985State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
- February 20, 1985State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
- August 13, 1984State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- February 14, 1984State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- May 25, 1983State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- December 6, 1982State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- December 3, 1982State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- September 30, 1982Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record
- January 19, 1982State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- December 19, 1981State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- July 19, 1981State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
Contact
MASONTOWN MUNI WATER WORKS
724-583-7731
MASONTOWN, PA 15461