HERON, MT · Sanders County

HERON COMMUNITY WATER SYSTEM 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 Montana’s official records. Always confirm current status with Montana before making decisions based on this information.

System facts

System ID (PWSID): MT0000247
System type: Community Water System
Population served: 84
Service connections: 46
Ownership: local government
Water source: groundwater (wells)

Violation history

Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2020 – January 25, 2021
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2014 – May 31, 2014
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2012 – May 8, 2012
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2011 – December 12, 2012
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2011 – December 12, 2012
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2008 – June 30, 2008
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2008 – March 31, 2008
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2007 – July 15, 2008
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2007 – March 31, 2007
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2007 – March 31, 2007
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2006 – December 31, 2006
Archived
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Toluene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Styrene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Benzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Nickel
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Endrin
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2002 – December 31, 2004
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2001 – September 21, 2005
Resolved

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
December 30, 2020 – January 25, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
May 1, 2014 – May 31, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2012 – May 8, 2012	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2011 – December 12, 2012	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2011 – December 12, 2012	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2008 – June 30, 2008	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2007 – July 15, 2008	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2007 – March 31, 2007	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2007 – March 31, 2007	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Nitrate-Nitrite	—	Archived
January 1, 2002 – December 31, 2004	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Toluene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Styrene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Benzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Nickel	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Endrin	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
October 1, 2001 – September 21, 2005	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved

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

Enforcement actions

January 7, 2021State Violation/Reminder Notice14 linked violations
May 27, 2014State Public Notification requested3 linked violations
January 24, 2014State Public Notification requested3 linked violations
January 24, 2014State Violation/Reminder Notice3 linked violations
December 12, 2012State Compliance achieved1 linked violation
February 15, 2012State Violation/Reminder Notice3 linked violations
September 26, 2008State Compliance achieved13 linked violations
July 24, 2008State Violation/Reminder Notice2 linked violations
July 24, 2008State Public Notification requested2 linked violations
July 15, 2008State Compliance achieved1 linked violation
July 15, 2008State Compliance achieved2 linked violations
May 3, 2008State Public Notification requested1 linked violation
February 8, 2008State Public Notification requested3 linked violations
February 8, 2008State Public Notification requested2 linked violations
February 8, 2008State Violation/Reminder Notice2 linked violations
February 8, 2008State Violation/Reminder Notice14 linked violations
August 25, 2006State Violation/Reminder Notice1 linked violation
August 25, 2006State Public Notification requested1 linked violation
August 25, 2006State Violation/Reminder Notice1 linked violation
August 25, 2006State Violation/Reminder Notice1 linked violation
August 25, 2006State Public Notification requested1 linked violation
August 25, 2006State Violation/Reminder Notice1 linked violation
January 18, 2006State Compliance achieved26 linked violations
January 5, 2006State Compliance achieved22 linked violations
September 21, 2005State Compliance achieved1 linked violation
July 6, 2005State Compliance achieved4 linked violations
April 15, 2005State Public Notification requested21 linked violations
April 15, 2005State Violation/Reminder Notice21 linked violations
April 14, 2005State Violation/Reminder Notice4 linked violations
April 14, 2005State Public Notification requested26 linked violations
April 14, 2005State Violation/Reminder Notice26 linked violations
April 14, 2005State Public Notification requested4 linked violations
April 13, 2005State Public Notification requested1 linked violation
April 13, 2005State Violation/Reminder Notice1 linked violation
December 3, 2002State Compliance achieved1 linked violation
November 2, 2001State Compliance achieved1 linked violation
September 24, 2001State Public Notification requested1 linked violation
September 24, 2001State Violation/Reminder Notice1 linked violation
June 9, 2001State Violation/Reminder Notice1 linked violation
June 9, 2001State Public Notification requested1 linked violation
June 9, 2001State Violation/Reminder Notice1 linked violation
May 15, 2001State Compliance achieved1 linked violation
December 31, 2000State Violation/Reminder Notice1 linked violation
April 3, 1999State Violation/Reminder Notice1 linked violation
April 3, 1999State Public Notification requested1 linked violation
September 11, 1998State Violation/Reminder Notice2 linked violations
August 31, 1996State Violation/Reminder Notice1 linked violation
May 30, 1996State Violation/Reminder Notice1 linked violation
August 19, 1994State Violation/Reminder Notice4 linked violations

Contact

JENSEN, CLINT

406-847-2333

HERON, MT 59844