STERLING, CO · Logan County

STERLING CITY OF 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 Colorado’s official records. Always confirm current status with Colorado before making decisions based on this information.

System facts

System ID (PWSID): CO0138045
System type: Community Water System
Population served: 15,100
Service connections: 4,655
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Source Water (LT2)
—
E. COLI
August 1, 2023 – August 31, 2023
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
August 1, 2023 – August 31, 2023
Resolved
Monitoring, Source Water (LT2)
—
Turbidity
July 1, 2023 – July 31, 2023
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
October 1, 2022 – November 10, 2022
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
April 5, 2021 – April 23, 2021
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
November 1, 2020 – November 30, 2020
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
March 3, 2019 – May 28, 2019
Resolved
Monitoring, Source Water (LT2)
—
E. COLI
September 1, 2018 – September 30, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2013 – June 30, 2013
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2013 – December 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2013 – March 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2012 – September 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
April 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2012 – December 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
January 1, 2012 – March 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2011 – December 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
July 1, 2011 – September 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2011 – December 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2011 – December 31, 2011
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2010 – August 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2010 – March 31, 2010
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Combined Uranium
July 1, 2009 – September 30, 2009
Resolved
Monitoring, Regular
—
Nickel
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Nitrate
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Fluoride
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Arsenic
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Barium
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Cadmium
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Chromium
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Mercury
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Antimony, Total
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Beryllium, Total
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Thallium, Total
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Selenium
April 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2009 – December 31, 2009
Resolved
Monitoring, Regular
—
Combined Uranium
January 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
July 1, 2008 – September 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
January 1, 2008 – March 31, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Uranium
October 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Nitrate
October 1, 2006 – December 31, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – October 11, 2006
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Selenium
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Mercury
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Chromium
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
Barium
January 1, 2005 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Nitrate-Nitrite
April 21, 1985 – April 21, 1988
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
August 1, 2023 – August 31, 2023	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
August 1, 2023 – August 31, 2023	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
July 1, 2023 – July 31, 2023	Monitoring, Source Water (LT2)	Turbidity	—	Resolved
October 1, 2022 – November 10, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
April 5, 2021 – April 23, 2021	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
November 1, 2020 – November 30, 2020	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
March 3, 2019 – May 28, 2019	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
September 1, 2018 – September 30, 2018	Monitoring, Source Water (LT2)	E. COLI	—	Resolved
July 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2013 – June 30, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2013 – December 31, 2013	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
July 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
January 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
January 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
August 1, 2010 – August 31, 2010	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
January 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 2009 – September 30, 2009	Monitoring, Regular	Combined Uranium	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Nickel	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Nitrate	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Fluoride	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Arsenic	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Barium	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Cadmium	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Chromium	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Mercury	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Antimony, Total	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Beryllium, Total	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Thallium, Total	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Selenium	—	Resolved
January 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Combined Uranium	—	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
July 1, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
January 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Combined Uranium	Health-based	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Archived
October 1, 2006 – December 31, 2006	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2006 – October 11, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Selenium	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Mercury	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Chromium	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Barium	—	Resolved
April 21, 1985 – April 21, 1988	Maximum Contaminant Level Violation, Average	Nitrate-Nitrite	Health-based	Resolved

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

Enforcement actions

October 24, 2023State Public Notification requested2 linked violations
October 24, 2023State Public Notification requested2 linked violations
October 24, 2023State Public Notification requested2 linked violations
October 6, 2023State Public Notification requested2 linked violations
October 6, 2023State Violation/Reminder Notice2 linked violations
September 8, 2023State Violation/Reminder Notice2 linked violations
July 12, 2023State Violation/Reminder Notice2 linked violations
November 10, 2022State Compliance achieved2 linked violations
November 9, 2022State Public Notification requested2 linked violations
November 9, 2022State Violation/Reminder Notice2 linked violations
August 8, 2022State Public Notification requested2 linked violations
January 18, 2021State Compliance achieved2 linked violations
January 7, 2021State Public Notification requested2 linked violations
January 7, 2021State Public Notification requested2 linked violations
January 7, 2021State Public Notification requested2 linked violations
October 15, 2020State Compliance achieved2 linked violations
August 10, 2020State Violation/Reminder Notice2 linked violations
October 10, 2018State Boil Water Order1 linked violation
September 26, 2018State Public Notification requested2 linked violations
September 17, 2014State Compliance achieved6 linked violations
February 11, 2014State Public Notification requested2 linked violations
November 14, 2013State Public Notification requested2 linked violations
October 18, 2013State Public Notification received3 linked violations
September 6, 2013State Public Notification received3 linked violations
August 9, 2013State Public Notification requested2 linked violations
August 9, 2013State Violation/Reminder Notice1 linked violation
April 29, 2013State Violation/Reminder Notice1 linked violation
April 29, 2013State Public Notification requested44 linked violations
March 4, 2013State Public Notification received1 linked violation
February 4, 2013State Violation/Reminder Notice2 linked violations
January 31, 2013State Public Notification requested1 linked violation
January 31, 2013State Violation/Reminder Notice2 linked violations
December 3, 2012State Public Notification received1 linked violation
October 31, 2012State Violation/Reminder Notice1 linked violation
October 31, 2012State Public Notification requested36 linked violations
July 24, 2012State Public Notification requested3 linked violations
June 15, 2012State Public Notification received2 linked violations
March 7, 2012State Public Notification received2 linked violations
January 30, 2012State Public Notification requested1 linked violation
January 30, 2012State Violation/Reminder Notice1 linked violation
January 20, 2012State Violation/Reminder Notice1 linked violation
January 20, 2012State Public Notification requested1 linked violation
November 14, 2011State Public Notification received1 linked violation
October 4, 2011State Violation/Reminder Notice1 linked violation
October 4, 2011State Public Notification requested1 linked violation
June 22, 2011State Public Notification received2 linked violations
March 31, 2011State Violation/Reminder Notice2 linked violations
March 31, 2011State Public Notification requested2 linked violations
March 14, 2011State Compliance achieved1 linked violation
January 7, 2011State Public Notification received1 linked violation
September 10, 2010State Public Notification received1 linked violation
August 31, 2010State Violation/Reminder Notice1 linked violation
August 31, 2010State Public Notification requested1 linked violation
June 25, 2010State Public Notification received1 linked violation
June 16, 2010State Violation/Reminder Notice1 linked violation
June 16, 2010State Public Notification requested1 linked violation
April 29, 2010State Compliance achieved1 linked violation
April 13, 2010State Violation/Reminder Notice1 linked violation
April 13, 2010State Public Notification requested1 linked violation
April 13, 2010State Violation/Reminder Notice1 linked violation
April 13, 2010State Public Notification requested1 linked violation
April 5, 2010State Public Notification received1 linked violation
March 30, 2010State Violation/Reminder Notice1 linked violation
March 30, 2010State Public Notification requested1 linked violation
February 22, 2010State Compliance achieved1 linked violation
February 10, 2010State Violation/Reminder Notice1 linked violation
February 10, 2010State Compliance achieved2 linked violations
February 10, 2010State Public Notification requested1 linked violation
February 10, 2010State Violation/Reminder Notice1 linked violation
February 10, 2010State Public Notification requested1 linked violation
December 10, 2009State Public Notification received2 linked violations
December 4, 2009State Violation/Reminder Notice1 linked violation
December 4, 2009State Public Notification requested1 linked violation
December 1, 2009State Compliance achieved1 linked violation
November 12, 2009State Public Notification requested1 linked violation
November 12, 2009State Violation/Reminder Notice1 linked violation
August 28, 2009State Compliance achieved11 linked violations
August 18, 2009State Compliance achieved1 linked violation
August 12, 2009State Public Notification requested10 linked violations
August 12, 2009State Public Notification requested1 linked violation
August 12, 2009State Violation/Reminder Notice1 linked violation
August 12, 2009State Violation/Reminder Notice10 linked violations
August 12, 2009State Public Notification requested1 linked violation
August 12, 2009State Violation/Reminder Notice1 linked violation
August 12, 2009State Public Notification requested1 linked violation
August 12, 2009State Violation/Reminder Notice1 linked violation
November 10, 2008State Violation/Reminder Notice1 linked violation
November 10, 2008State Violation/Reminder Notice1 linked violation
November 10, 2008State Public Notification requested2 linked violations
October 29, 2008State Public Notification received2 linked violations
September 2, 2008State Administrative/Compliance Order without penalty issued23 linked violations
September 2, 2008State Public Notification requested2 linked violations
August 15, 2008State Public Notification requested1 linked violation
August 15, 2008State Violation/Reminder Notice22 linked violations
July 2, 2008State Public Notification received10 linked violations
May 14, 2008State Public Notification requested2 linked violations
May 14, 2008State Violation/Reminder Notice2 linked violations
March 10, 2008State Public Notification received3 linked violations
February 8, 2008State Public Notification requested11 linked violations
February 8, 2008State Violation/Reminder Notice11 linked violations
January 14, 2008State Public Notification requested2 linked violations
December 7, 2007State Compliance achieved1 linked violation
December 3, 2007State Public Notification received1 linked violation
October 5, 2007State Violation/Reminder Notice1 linked violation
October 5, 2007State Public Notification requested3 linked violations
October 11, 2006State Compliance achieved2 linked violations
October 22, 1991State Formal Notice of Violation issued2 linked violations
October 22, 1991State Public Notification requested3 linked violations
May 7, 1991State Compliance achieved1 linked violation
December 13, 1989State Unresolved1 linked violation

Contact

DAVISON, DANA

970-522-9700

STERLING, CO 80751