West Monroe tap water, in plain English

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 9 times between October 2013 and April 2023. The EPA record lists a level of 87 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Groundwater Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 13 times between February 2020 and February 2023. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in April 2020. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 5 times between July 2009 and May 2014. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2009 and October 2009. All have since returned to compliance, per EPA records.

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 20 times between April 2012 and April 2021. The EPA record lists a level of 98 UG/L; the limit (MCL) is 80 UG/L. All have since returned to compliance, per EPA records.
• Health-based Groundwater Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in January 2021. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in October 2014. All have since returned to compliance, per EPA records.

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

As of June 2026, EPA records show no reported violations for this system in the period covered. This is not a guarantee about every substance, or about the water inside your home's plumbing.

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 28 times between October 2015 and October 2024. The EPA record lists a level of 126 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Groundwater Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times in January 2020. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Health-based Total Haloacetic Acids (HAA5): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 9 times between April 2016 and October 2018. The EPA record lists a level of 64 UG/L; the limit (MCL) is 60 UG/L. All have since returned to compliance, per EPA records.
• Health-based Coliform (TCR): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in October 2011. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2008. All have since returned to compliance, per EPA records.

• Health-based Groundwater Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in January 2021. The EPA record for these does not include a measured level. EPA records do not show all of these as returned to compliance.
• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 11 times between July 2016 and January 2019. The EPA record lists a level of 176 UG/L; the limit (MCL) is 80 UG/L. All have since returned to compliance, per EPA records.
• Health-based Coliform (TCR): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in April 2014. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.

• Health-based Groundwater Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in January 2021. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in September 2015. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in September 2015. All have since returned to compliance, per EPA records.

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 40 times between July 2014 and January 2023. The EPA record lists a level of 106 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Coliform (TCR): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 6 times between April 2014 and May 2015. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between October 2014 and January 2015. All have since returned to compliance, per EPA records.

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 101 times between January 2014 and January 2024. The EPA record lists a level of 95 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Groundwater Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 19 times between January 2012 and January 2020. The EPA record for these does not include a measured level. EPA records do not show all of these as returned to compliance.
• Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 18 times between May 2015 and March 2020. All have since returned to compliance, per EPA records.
• Monitoring Lead and Copper Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times in October 2019. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 20 times between May 2014 and October 2017. All have since returned to compliance, per EPA records.
• Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between July 2011 and July 2017. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 6 times between July 2014 and September 2016. All have since returned to compliance, per EPA records.

• Health-based LEAD AND COPPER RULE REVISIONS: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times in October 2024. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 36 times between January 2013 and January 2023. The EPA record lists a level of 124 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Total Haloacetic Acids (HAA5): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 6 times between January 2013 and January 2019. The EPA record lists a level of 73 UG/L; the limit (MCL) is 60 UG/L. All have since returned to compliance, per EPA records.
• Monitoring LEAD AND COPPER RULE REVISIONS: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times in October 2024. All have since returned to compliance, per EPA records.
• Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2017 and October 2017. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between January 2015 and February 2016. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between May 2015 and February 2016. All have since returned to compliance, per EPA records.
• Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between May 2014 and December 2014. All have since returned to compliance, per EPA records.
• Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between April 2014 and August 2014. All have since returned to compliance, per EPA records.
• Monitoring Stage 2 Disinfectants and Disinfection Byproducts Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between April 2008 and July 2010. All have since returned to compliance, per EPA records.

• Health-based LEAD AND COPPER RULE REVISIONS: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times in October 2024. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 6 times between July 2018 and January 2020. The EPA record lists a level of 95 UG/L; the limit (MCL) is 80 UG/L. All have since returned to compliance, per EPA records.
• Health-based Coliform (TCR): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in July 2014. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 50 times between October 2015 and January 2022. The EPA record lists a level of 85 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Groundwater Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 4 times between November 2011 and April 2015. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2017 and October 2017. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 6 times between July 2011 and October 2016. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between July 2011 and December 2015. All have since returned to compliance, per EPA records.
• Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in December 2014. All have since returned to compliance, per EPA records.
• Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between October 2012 and August 2014. All have since returned to compliance, per EPA records.
• Monitoring Chlorine: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in April 2014. All have since returned to compliance, per EPA records.

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 41 times between April 2016 and January 2023. The EPA record lists a level of 101 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Total Haloacetic Acids (HAA5): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 8 times between April 2016 and October 2018. The EPA record lists a level of 71 UG/L; the limit (MCL) is 60 UG/L. EPA records do not show all of these as returned to compliance.
• Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2017 and October 2017. All have since returned to compliance, per EPA records.
• Monitoring Lead and Copper Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in October 2016. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between July 2011 and July 2016. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between July 2011 and July 2016. All have since returned to compliance, per EPA records.
• Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in December 2014. All have since returned to compliance, per EPA records.
• Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in August 2014. All have since returned to compliance, per EPA records.
• Monitoring Chloramine: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2014. All have since returned to compliance, per EPA records.

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 39 times between October 2015 and October 2022. The EPA record lists a level of 94 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Total Haloacetic Acids (HAA5): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 14 times between April 2016 and January 2019. The EPA record lists a level of 98 UG/L; the limit (MCL) is 60 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Coliform (TCR): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in June 1991. The EPA record lists a level of 0 ; the limit (MCL) is 0 . All have since returned to compliance, per EPA records.
• Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2017 and October 2017. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 6 times between July 2010 and July 2016. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 6 times between July 2010 and July 2016. All have since returned to compliance, per EPA records.
• Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in December 2014. All have since returned to compliance, per EPA records.
• Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in August 2014. All have since returned to compliance, per EPA records.
• Monitoring Chloramine: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2014. All have since returned to compliance, per EPA records.

• Health-based LEAD AND COPPER RULE REVISIONS: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 2 times in October 2024. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Health-based Groundwater Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 5 times between January 2012 and August 2022. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 5 times between April 2017 and April 2018. The EPA record lists a level of 83 UG/L; the limit (MCL) is 80 UG/L. All have since returned to compliance, per EPA records.
• Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 5 times between July 2000 and July 2024. All have since returned to compliance, per EPA records.
• Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times in September 2022. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between January 2013 and October 2017. All have since returned to compliance, per EPA records.
• Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in February 2015. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in January 2013. All have since returned to compliance, per EPA records.

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 35 times between October 2016 and April 2022. The EPA record lists a level of 92 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Total Haloacetic Acids (HAA5): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 10 times between October 2016 and October 2018. The EPA record lists a level of 78 UG/L; the limit (MCL) is 60 UG/L. EPA records do not show all of these as returned to compliance.
• Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2017 and October 2017. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 6 times between January 2009 and October 2016. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 6 times between January 2009 and October 2016. All have since returned to compliance, per EPA records.
• Monitoring Lead and Copper Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times in October 2016. All have since returned to compliance, per EPA records.
• Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in December 2014. All have since returned to compliance, per EPA records.
• Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in August 2014. All have since returned to compliance, per EPA records.

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 29 times between October 2015 and April 2022. The EPA record lists a level of 82 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Total Haloacetic Acids (HAA5): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 8 times between April 2016 and October 2018. The EPA record lists a level of 91 UG/L; the limit (MCL) is 60 UG/L. EPA records do not show all of these as returned to compliance.
• Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2017 and October 2017. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 6 times between July 2010 and July 2016. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 6 times between July 2010 and July 2016. All have since returned to compliance, per EPA records.
• Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in December 2014. All have since returned to compliance, per EPA records.
• Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 3 times between April 2014 and August 2014. All have since returned to compliance, per EPA records.
• Monitoring Chloramine: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2014. All have since returned to compliance, per EPA records.
• Monitoring Chlorine: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in April 2014. All have since returned to compliance, per EPA records.

• Health-based TTHM: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 35 times between October 2016 and April 2022. The EPA record lists a level of 100 UG/L; the limit (MCL) is 80 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Total Haloacetic Acids (HAA5): a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded 12 times between October 2016 and October 2018. The EPA record lists a level of 73 UG/L; the limit (MCL) is 60 UG/L. EPA records do not show all of these as returned to compliance.
• Health-based Groundwater Rule: a health-based violation (a contaminant recorded above the limit the EPA tracks), recorded once in January 2012. The EPA record for these does not include a measured level. All have since returned to compliance, per EPA records.
• Monitoring Consumer Confidence Rule: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 2 times between July 2017 and October 2017. All have since returned to compliance, per EPA records.
• Monitoring TTHM: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between July 2010 and October 2016. All have since returned to compliance, per EPA records.
• Monitoring Total Haloacetic Acids (HAA5): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded 4 times between July 2010 and October 2016. All have since returned to compliance, per EPA records.
• Monitoring Public Notice: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in December 2014. All have since returned to compliance, per EPA records.
• Monitoring Coliform (TCR): a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in August 2014. All have since returned to compliance, per EPA records.
• Monitoring Chloramine: a monitoring or reporting violation (a required test or report was late or missed — not a measured exceedance), recorded once in July 2014. All have since returned to compliance, per EPA records.