TREMONTON, UT · Box Elder County

THATCHER-PENROSE SERVICE DISTRICT 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 Utah’s official records. Always confirm current status with Utah before making decisions based on this information.

System facts

System ID (PWSID): UTAH02025
System type: Community Water System
Population served: 590
Service connections: 265
Ownership: local government
Water source: groundwater (wells)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025 – July 21, 2025
Resolved
Failure to Conduct Assessment Monitoring
—
E. COLI
July 1, 2021 – July 31, 2021
Archived
Failure to Conduct Assessment Monitoring
—
E. COLI
May 1, 2021 – May 31, 2021
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
May 1, 2019 – May 31, 2019
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
August 31, 2018 – October 18, 2018
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2017 – September 30, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2017 – August 31, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
July 1, 2017 – July 31, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2017 – July 29, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
March 1, 2017 – March 31, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2017 – February 28, 2017
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2017 – January 31, 2017
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2017 – December 31, 2017
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2015 – November 2, 2018
Resolved
Failure To Address Deficiency
Health-based
Groundwater Rule
October 18, 2014 – July 31, 2017
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2013 – December 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2012 – September 30, 2012
Resolved
Monitoring, Regular
—
Chromium
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Picloram
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
LASSO
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Barium
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Mercury
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2011 – December 31, 2013
Resolved
Monitoring, Regular
—
Radium-228
July 1, 2010 – September 30, 2010
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2008 – December 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
Picloram
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2004 – December 31, 2006
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Mercury
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Chromium
January 1, 2003 – December 31, 2005
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Picloram
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 1, 1998 – July 31, 1998
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1997 – September 30, 1997
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 1996 – November 30, 1996
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
October 1, 1996 – October 31, 1996
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 1994 – October 31, 1994
Archived
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 1994 – September 30, 1994
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 1, 1994 – August 31, 1994
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
May 1, 1994 – May 31, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1992 – January 31, 1992
Resolved
Monitoring, Regular
—
Nickel
January 1, 1991 – December 31, 1993
Resolved
Monitoring, Regular
—
Barium
January 1, 1983 – January 31, 1983
Archived
Monitoring, Regular
—
Cadmium
January 1, 1983 – January 31, 1983
Archived
Monitoring, Regular
—
Chromium
January 1, 1983 – January 31, 1983
Archived
Monitoring, Regular
—
Fluoride
January 1, 1983 – January 31, 1983
Archived
Monitoring, Regular
—
Nitrate
January 1, 1983 – January 31, 1983
Archived
Monitoring, Regular
—
Selenium
January 1, 1983 – January 31, 1983
Archived
Monitoring, Regular
—
Arsenic
January 1, 1983 – January 31, 1983
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
July 1, 2025 – July 21, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2021 – July 31, 2021	Failure to Conduct Assessment Monitoring	E. COLI	—	Archived
May 1, 2021 – May 31, 2021	Failure to Conduct Assessment Monitoring	E. COLI	—	Resolved
May 1, 2019 – May 31, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
August 31, 2018 – October 18, 2018	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
September 1, 2017 – September 30, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2017 – August 31, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2017 – July 31, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2017 – July 29, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
March 1, 2017 – March 31, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
February 1, 2017 – February 28, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2017 – January 31, 2017	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2015 – November 2, 2018	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 18, 2014 – July 31, 2017	Failure To Address Deficiency	Groundwater Rule	Health-based	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2012 – September 30, 2012	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Chromium	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Picloram	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	LASSO	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Barium	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Mercury	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Thallium, Total	—	Resolved
July 1, 2010 – September 30, 2010	Monitoring, Regular	Radium-228	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Nitrate	—	Resolved
December 1, 2006 – December 31, 2006	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	Picloram	—	Resolved
January 1, 2004 – December 31, 2006	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Mercury	—	Resolved
January 1, 2003 – December 31, 2005	Monitoring, Regular	Chromium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Picloram	—	Resolved
July 1, 1998 – July 31, 1998	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1997 – September 30, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
November 1, 1996 – November 30, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1996 – October 31, 1996	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1994 – October 31, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
September 1, 1994 – September 30, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 1994 – August 31, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1994 – May 31, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1992 – January 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1991 – December 31, 1993	Monitoring, Regular	Nickel	—	Resolved
January 1, 1983 – January 31, 1983	Monitoring, Regular	Barium	—	Archived
January 1, 1983 – January 31, 1983	Monitoring, Regular	Cadmium	—	Archived
January 1, 1983 – January 31, 1983	Monitoring, Regular	Chromium	—	Archived
January 1, 1983 – January 31, 1983	Monitoring, Regular	Fluoride	—	Archived
January 1, 1983 – January 31, 1983	Monitoring, Regular	Nitrate	—	Archived
January 1, 1983 – January 31, 1983	Monitoring, Regular	Selenium	—	Archived
January 1, 1983 – January 31, 1983	Monitoring, Regular	Arsenic	—	Archived

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

Enforcement actions

July 10, 2025State Formal Notice of Violation issued2 linked violations
December 9, 2024State Public Notification requested3 linked violations
July 22, 2023State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
November 26, 2021State Public Notification requested3 linked violations
October 9, 2021State Public Notification requested26 linked violations
July 24, 2021State Public Notification requested3 linked violations
June 16, 2019State Public Notification requested2 linked violations
November 2, 2018State Compliance achieved2 linked violations
March 14, 2018State Compliance achieved2 linked violations
March 14, 2018State Compliance achieved25 linked violations
March 14, 2018State Compliance achieved2 linked violations
February 4, 2018State Formal Notice of Violation issued2 linked violations
January 20, 2018State Public Notification requested2 linked violations
November 4, 2017State Formal Notice of Violation issued2 linked violations
November 4, 2017State Public Notification requested2 linked violations
November 3, 2017State Public Notification requested1 linked violation
November 3, 2017State Formal Notice of Violation issued1 linked violation
July 31, 2017State Compliance achieved2 linked violations
July 29, 2017State Formal Notice of Violation issued2 linked violations
April 18, 2017State Public Notification requested4 linked violations
April 18, 2017State Formal Notice of Violation issued25 linked violations
April 16, 2017State Public Notification requested4 linked violations
August 26, 2015State Compliance achieved4 linked violations
March 31, 2015State Public Notification requested25 linked violations
April 4, 2014State Compliance achieved1 linked violation
April 4, 2014State Compliance achieved24 linked violations
April 4, 2014State Compliance achieved3 linked violations
January 26, 2014State Public Notification requested3 linked violations
January 24, 2014State Formal Notice of Violation issued24 linked violations
January 24, 2014State Public Notification requested1 linked violation
January 24, 2014State Formal Notice of Violation issued36 linked violations
January 24, 2014State Formal Notice of Violation issued12 linked violations
January 24, 2014State Public Notification requested24 linked violations
January 24, 2014State Formal Notice of Violation issued24 linked violations
January 24, 2014State Public Notification requested13 linked violations
January 24, 2014State Public Notification requested12 linked violations
January 24, 2014State Formal Notice of Violation issued1 linked violation
January 13, 2013State Formal Notice of Violation issued5 linked violations
January 13, 2013State Compliance achieved3 linked violations
July 9, 2010State Formal Notice of Violation issued25 linked violations
March 22, 2009State Compliance achieved25 linked violations
August 15, 2005State Compliance achieved4 linked violations
August 15, 2005State Compliance achieved1 linked violation
August 15, 2005State Compliance achieved3 linked violations
August 15, 2005State Compliance achieved3 linked violations
August 15, 2005State Compliance achieved3 linked violations
August 15, 2005State Compliance achieved119 linked violations
August 15, 2005State Compliance achieved2 linked violations
August 15, 2005State Compliance achieved3 linked violations
August 15, 2005State Compliance achieved1 linked violation
August 15, 2005State Compliance achieved2 linked violations
August 15, 2005State Compliance achieved1 linked violation
December 16, 1996State Hook-up/Extension Ban37 linked violations
March 23, 1995State Administrative/Compliance Order without penalty issued41 linked violations
July 20, 1992Federal issued Formal Notice of Violationgeneral compliance action — not tied to a specific violation on record
May 2, 1991State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record
April 15, 1991State Technical Assistance Visitgeneral compliance action — not tied to a specific violation on record

Contact

NELSON, RANDY

435-466-0451

TREMONTON, UT 84337