BOULDER CITY, AZ · Mohave County

KATHERINE LANDING DWTP Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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 Arizona’s official records. Always confirm current status with Arizona before making decisions based on this information.

System facts

System ID (PWSID): AZ0408701
System type: Community Water System
Population served: 1,300
Service connections: 41
Ownership: federal government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Failure Submit IDSE/Subpart V Plan Rpt
—
Total Haloacetic Acids (HAA5)
April 1, 2025 – June 24, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 12, 2024
Unaddressed
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2023 – June 30, 2023
Resolved
Monitoring, Regular
—
Toluene
April 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2022 – December 31, 2022
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2021 – June 30, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2021 – March 31, 2021
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
April 1, 2020 – April 30, 2020
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
April 1, 2017 – April 30, 2017
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2016 – June 30, 2016
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
CHLOROBENZENE
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2013 – March 31, 2013
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2013 – March 31, 2013
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2013 – March 31, 2013
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2013 – March 31, 2013
Resolved
Monitoring, Regular
—
Benzene
January 1, 2013 – March 31, 2013
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2013 – March 31, 2013
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2012 – June 30, 2012
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2012 – March 31, 2012
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2012 – March 31, 2012
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2012 – March 31, 2012
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2012 – March 31, 2012
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2012 – March 31, 2012
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2012 – March 31, 2012
Resolved
Monitoring, Regular
—
Benzene
January 1, 2012 – March 31, 2012
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2011 – December 31, 2011
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Toluene
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2011 – December 31, 2011
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Styrene
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2008 – December 31, 2010
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2007 – December 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2006 – March 31, 2006
Resolved
Monitoring, Regular
—
Chromium
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Nickel
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1988 – December 31, 1988
Archived
Monitoring, Regular
—
Endrin
October 1, 1988 – December 31, 1988
Archived
Monitoring, Regular
—
BHC-GAMMA
October 1, 1988 – December 31, 1988
Archived
Monitoring, Regular
—
Methoxychlor
October 1, 1988 – December 31, 1988
Archived
Monitoring, Regular
—
Toxaphene
October 1, 1988 – December 31, 1988
Archived
Monitoring, Regular
—
2,4,5-TP
October 1, 1988 – December 31, 1988
Archived
Monitoring, Regular
—
2,4-D
October 1, 1988 – December 31, 1988
Archived
Monitoring, Regular
—
Barium
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
Cadmium
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
Chromium
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
Mercury
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
Selenium
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
Fluoride
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
Nitrate
April 1, 1988 – June 30, 1988
Archived
Monitoring, Regular
—
Arsenic
April 8, 1987 – April 6, 1988
Archived
Monitoring, Regular
—
Fluoride
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Cadmium
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Arsenic
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Nitrate
June 25, 1984 – June 24, 1985
Archived
Monitoring, Regular
—
Mercury
June 25, 1984 – June 24, 1985
Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2025 – June 24, 2025	Failure Submit IDSE/Subpart V Plan Rpt	Total Haloacetic Acids (HAA5)	—	Resolved
April 12, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
April 1, 2023 – June 30, 2023	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
April 1, 2023 – June 30, 2023	Monitoring, Regular	Toluene	—	Resolved
October 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2021 – June 30, 2021	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2021 – March 31, 2021	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2020 – April 30, 2020	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2017 – April 30, 2017	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2016 – June 30, 2016	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2013 – March 31, 2013	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2013 – March 31, 2013	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2013 – March 31, 2013	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2013 – March 31, 2013	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2013 – March 31, 2013	Monitoring, Regular	Benzene	—	Resolved
January 1, 2013 – March 31, 2013	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
October 1, 2012 – December 31, 2012	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
October 1, 2012 – December 31, 2012	Monitoring, Regular	Trichloroethylene	—	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2012 – March 31, 2012	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring, Regular	Benzene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Toluene	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	CHLOROBENZENE	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2011 – December 31, 2011	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2010 – March 31, 2010	Monitoring, Regular	Styrene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Tetrachloroethylene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2008 – December 31, 2010	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Chromium	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Nickel	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Thallium, Total	—	Resolved
October 1, 1988 – December 31, 1988	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 1, 1988 – December 31, 1988	Monitoring, Regular	Endrin	—	Archived
October 1, 1988 – December 31, 1988	Monitoring, Regular	BHC-GAMMA	—	Archived
October 1, 1988 – December 31, 1988	Monitoring, Regular	Methoxychlor	—	Archived
October 1, 1988 – December 31, 1988	Monitoring, Regular	Toxaphene	—	Archived
October 1, 1988 – December 31, 1988	Monitoring, Regular	2,4,5-TP	—	Archived
October 1, 1988 – December 31, 1988	Monitoring, Regular	2,4-D	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	Barium	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	Cadmium	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	Chromium	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	Mercury	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	Selenium	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	Fluoride	—	Archived
April 1, 1988 – June 30, 1988	Monitoring, Regular	Nitrate	—	Archived
April 8, 1987 – April 6, 1988	Monitoring, Regular	Arsenic	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Fluoride	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Cadmium	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Arsenic	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Nitrate	—	Archived
June 25, 1984 – June 24, 1985	Monitoring, Regular	Mercury	—	Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

December 31, 2024State Public Notification requested124 linked violations
July 3, 2024State Violation/Reminder Notice42 linked violations
January 30, 2017State Violation/Reminder Notice91 linked violations
September 26, 2013State Violation/Reminder Notice169 linked violations
May 17, 2010State Violation/Reminder Notice120 linked violations
May 17, 2010State Violation/Reminder Notice103 linked violations
May 17, 2010State Violation/Reminder Notice61 linked violations
May 17, 2010State Violation/Reminder Notice125 linked violations
January 25, 1980State Othergeneral compliance action — not tied to a specific violation on record
September 11, 1979State Othergeneral compliance action — not tied to a specific violation on record

Contact

SAMONS, ARTHUR V

702-575-8770

BOULDER CITY, NV 89005