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Archive - Monthly Water Quality Updates
Massachussetts Water Resources Authority


MWRA's Monthly Water Quality Update is sent to local water suppliers, public health officials, water consumers, and other interested parties. The Update includes a more detailed review of water quality than the annual water quality report that is mailed each June to every customer in our service area.

MWRA Monthly Water Quality Reports (PDF)

2024
Jan
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Feb 2024

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Aug 2024
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Sep 2024
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Oct 2024
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Nov 2024
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Dec 2024
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Jan 2025
2023
Jan
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Feb 2023

Feb
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Mar 2023

Mar
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Apr 2023
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May 2023
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Jun 2023
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Jul 2023
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Aug 2023
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Sep 2023
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Oct 2023
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Nov 2023
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Dec 2023
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Jan 2024
2022
Jan
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Feb 2022

Feb
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Mar 2022

Mar
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Apr 2022
Apr
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May 2022
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Jun 2022
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Jul 2022
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Aug 2022
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Sep 2022
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Oct 2022
Oct
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Nov 2022
Nov
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Dec 2022
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Jan 2023
2021
Jan
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Feb 2021

Feb
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Mar 2021

Mar
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Apr 2021
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May 2021
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Jun 2021
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Jul 2021
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Aug 2021
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Sep 2021
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Oct 2021
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Nov 2021
Nov
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Dec 2021
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Jan 2022
2020
Jan
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Feb 2020

Feb
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Mar 2020

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May 2020

Apr
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Jun 2020
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Jul 2020
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Jul 2020
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Aug 2020
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Sep 2020
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Oct 2020
Oct
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Nov 2020
Nov
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Dec 2020
Dec
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Jan 2021
2019
Jan
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Feb 2019
Feb
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Mar 2019
Mar
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Apr 2019
Apr
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May 2019
May
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Jun 2019
Jun
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Jul 2019
Jul
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Aug 2019
Aug
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Sep 2019
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Oct 2019
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Nov 2019
Nov
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Dec 2019
Dec
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Jan 2020
2018
Jan
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Feb 2018
Feb
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Mar 2018
Mar
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Apr 2018
Apr
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May 2018
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Jun 2018
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Jul 2018
Jul
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Aug 2018
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Sep 2018
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Oct 2018
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Nov 2018
Nov
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Dec 2018
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Dec 2018
2017
Jan
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Feb 2017
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Mar 2017
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Apr 2017
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May 2017
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Jun 2017
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Jul 2017
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Aug 2017
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Sep 2017
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Oct 2017
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Nov 2017
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Dec 2017
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Jan 2018
2016
Jan
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Feb 2016
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Mar 2016
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Apr 2016
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May 2016
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Jun 2016
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Aug 2016
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Nov 2016
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Dec 2016
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Dec 2017
2015
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Apr 2015
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Jul 2015
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Jan 2016
2014
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Dec 2014
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Jan 2015
2013
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Apr 2013
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Jun 2013
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Jul 2013
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Jan 2014
2012
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Apr 2012
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Jul 2012
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Jan 2013
2011
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Nov 2011
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Dec 2011
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Jan 2012
2010
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02/20/10
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03/20/10
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06/20/10
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11/20/10
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12/20/10
Dec
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01/20/11
2009
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May 2003
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Jul 2003
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Jul 2002
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1999
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1998
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Nov 1998
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1997
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Dec 1997
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Jan 1998
1996
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Jan 1997

Updated August 21, 2024

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