RONKS, PA · Lancaster County

CALAMUS ESTATES 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): PA7360032
System type: Community Water System
Population served: 140
Service connections: 81
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Combined Uranium
October 1, 2025 – December 31, 2025
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
Chlorine
August 1, 2025 – August 31, 2025
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
August 1, 2025 – August 31, 2025
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2024 – January 31, 2024
Resolved
Monitoring, Regular
—
Nitrite
October 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Nitrate
October 1, 2020 – December 31, 2020
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2019 – December 31, 2019
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2019 – July 31, 2019
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
March 1, 2018 – May 8, 2018
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Toluene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Styrene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Benzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2018 – March 31, 2018
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Barium
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Chromium
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Mercury
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Nickel
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Selenium
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2018 – December 31, 2018
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2018 – December 31, 2018
Resolved
Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
November 1, 2017 – December 28, 2017
Resolved
Monitoring, Regular
—
Radium-228
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Nitrate
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Nitrite
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Radium-226
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Nitrate
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Nitrite
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2016 – March 31, 2016
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2016 – March 31, 2016
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – October 8, 2013
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
January 1, 2013 – January 31, 2013
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2012 – March 31, 2012
Resolved
Monitoring, Regular
—
Nitrite
January 1, 2012 – March 31, 2012
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2012 – December 31, 2012
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – August 22, 2011
Resolved
Monitoring, Regular
—
Nitrite
April 1, 2011 – June 30, 2011
Resolved
Monitoring, Regular
—
Nitrite
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Nitrate
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2008 – June 30, 2008
Resolved
Monitoring, Regular
—
Nitrate
October 1, 2007 – December 31, 2007
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – October 11, 2006
Resolved
Monitoring, Regular
—
Mercury
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2001 – March 31, 2001
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2001 – February 5, 2001
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1999 – August 31, 1999
Resolved
Monitoring, Regular
—
Nitrate
July 1, 1999 – September 30, 1999
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1999 – July 31, 1999
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1999 – May 31, 1999
Resolved
Monitoring, Regular
—
Nitrate
April 1, 1999 – June 30, 1999
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1995 – March 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1994 – October 31, 1994
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 1994 – May 2, 1995
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
Vinyl chloride
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 1991 – March 31, 1991
Archived
Monitoring, Regular
—
Benzene
January 1, 1991 – March 31, 1991
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025 – December 31, 2025	Monitoring, Regular	Combined Uranium	—	Archived
October 1, 2025 – December 31, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
August 1, 2025 – August 31, 2025	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 1, 2025 – August 31, 2025	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2024 – January 31, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2020 – December 31, 2020	Monitoring, Regular	Nitrite	—	Resolved
October 1, 2020 – December 31, 2020	Monitoring, Regular	Nitrate	—	Resolved
October 1, 2019 – December 31, 2019	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 2019 – July 31, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
March 1, 2018 – May 8, 2018	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Toluene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Styrene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Benzene	—	Resolved
January 1, 2018 – March 31, 2018	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Barium	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Chromium	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Mercury	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Nickel	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Selenium	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2018 – December 31, 2018	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
November 1, 2017 – December 28, 2017	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Radium-228	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Nitrate	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Nitrite	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Radium-226	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Nitrate	—	Resolved
April 1, 2016 – June 30, 2016	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2016 – March 31, 2016	Monitoring, Regular	Nitrite	—	Resolved
July 1, 2013 – October 8, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2013 – January 31, 2013	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring, Regular	Nitrite	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Fluoride	—	Resolved
July 1, 2011 – August 22, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2011 – June 30, 2011	Monitoring, Regular	Nitrite	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Nitrite	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Nitrate	—	Resolved
June 1, 2008 – June 30, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2006 – October 11, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Mercury	—	Resolved
March 1, 2001 – March 31, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2001 – February 5, 2001	Monitoring, Regular	Nitrate	—	Resolved
August 1, 1999 – August 31, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1999 – September 30, 1999	Monitoring, Regular	Nitrate	—	Resolved
July 1, 1999 – July 31, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1999 – May 31, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1999 – June 30, 1999	Monitoring, Regular	Nitrate	—	Resolved
March 1, 1995 – March 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1994 – October 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1994 – May 2, 1995	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 1991 – March 31, 1991	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 1991 – March 31, 1991	Monitoring, Regular	Benzene	—	Archived

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

Enforcement actions

February 11, 2026State Formal Notice of Violation issued2 linked violations
February 9, 2026State Compliance achieved2 linked violations
October 9, 2025State Formal Notice of Violation issued2 linked violations
March 4, 2024State Violation/Reminder Notice1 linked violation
March 4, 2024State Compliance achieved1 linked violation
March 4, 2024State Public Notification received1 linked violation
March 4, 2024State Public Notification requested1 linked violation
March 10, 2022State Compliance achieved2 linked violations
March 10, 2022State Public Notification received2 linked violations
February 19, 2021State Public Notification requested2 linked violations
February 19, 2021State Violation/Reminder Notice2 linked violations
April 2, 2020State Compliance achieved2 linked violations
April 2, 2020State Violation/Reminder Notice2 linked violations
November 11, 2019State Public Notification received1 linked violation
November 11, 2019State Public Notification requested1 linked violation
November 11, 2019State Formal Notice of Violation issued1 linked violation
November 11, 2019State Compliance achieved1 linked violation
March 25, 2019State Compliance achieved32 linked violations
March 25, 2019State Violation/Reminder Notice32 linked violations
May 8, 2018State Compliance achieved1 linked violation
May 8, 2018State Violation/Reminder Notice1 linked violation
April 3, 2018State Compliance achieved2 linked violations
April 3, 2018State Violation/Reminder Notice2 linked violations
December 28, 2017State Compliance achieved1 linked violation
December 28, 2017State Violation/Reminder Notice1 linked violation
February 3, 2017State Violation/Reminder Notice5 linked violations
February 3, 2017State Compliance achieved5 linked violations
August 11, 2016State Compliance achieved2 linked violations
June 2, 2016State Compliance achieved2 linked violations
October 8, 2013State Compliance achieved1 linked violation
August 30, 2013State Formal Notice of Violation issued1 linked violation
August 30, 2013State Formal Notice of Violation issued1 linked violation
March 15, 2013State Compliance achieved1 linked violation
March 15, 2013State Public Notification received1 linked violation
February 25, 2013State Violation/Reminder Notice1 linked violation
February 25, 2013State Public Notification requested1 linked violation
February 11, 2013State Violation/Reminder Notice1 linked violation
February 11, 2013State Compliance achieved1 linked violation
May 14, 2012State Compliance achieved2 linked violations
May 7, 2012State Formal Notice of Violation issued2 linked violations
May 7, 2012State Public Notification requested2 linked violations
August 22, 2011State Compliance achieved1 linked violation
July 28, 2011State Compliance achieved1 linked violation
December 27, 2010State Compliance achieved2 linked violations
November 2, 2010State Formal Notice of Violation issued2 linked violations
November 2, 2010State Public Notification received2 linked violations
November 2, 2010State Public Notification requested2 linked violations
August 11, 2008State Compliance achieved1 linked violation
June 24, 2008State Public Notification received1 linked violation
June 24, 2008State Compliance achieved1 linked violation
February 14, 2008State Formal Notice of Violation issued1 linked violation
June 21, 2007State Public Notification received1 linked violation
June 21, 2007State Compliance achieved1 linked violation
May 10, 2007State Site Visit for enforcement purposes1 linked violation
April 5, 2007State Formal Notice of Violation issued1 linked violation
October 11, 2006State Violation/Reminder Notice1 linked violation
October 11, 2006State Compliance achieved1 linked violation

Contact

CALAMUS ESTATES

717-687-0970

RONKS, PA 17572