OHA Drinking Water Services
OR41
PWS ID: 00187 ---- CLACKAMAS RIVER WATER

Maximum Residual Disinfection Level (MRDL) Samples
MRDL Monitoring Requirements :: Excel Spreadsheet

Monitoring
Period
Entry
Point
Samples
Required
Samples
Collected
Period
Avg
Annual
Avg
Level
Compliance
Jan 01, 2024 DIST-A 30 51 0.9 0.7Y
Dec 01, 2023 DIST-A 50 51 0.8 0.7Y
Nov 01, 2023 DIST-A 50 51 0.64 0.7Y
Oct 01, 2023 DIST-A 50 51 0.57 0.7Y
Sep 01, 2023 DIST-A 50 51 0.61 0.7Y
Aug 01, 2023 DIST-A 50 51 0.66 0.7Y
Jul 01, 2023 DIST-A 50 51 0.73 0.7Y
Jun 01, 2023 DIST-A 50 51 0.73 0.7Y
May 01, 2023 DIST-A 50 51 0.87 0.7Y
Apr 01, 2023 DIST-A 50 51 0.75 0.7Y
Mar 01, 2023 DIST-A 50 51 0.8 0.7Y
Feb 01, 2023 DIST-A 50 51 0.84 0.7Y
Jan 01, 2023 DIST-A 50 51 0.80 0.7Y
Dec 01, 2022 DIST-A 50 51 0.7 0.7Y
Nov 01, 2022 DIST-A 50 51 0.5 0.7Y
Oct 01, 2022 DIST-A 50 51 0.66 0.7Y
Sep 01, 2022 DIST-A 50 51 0.63 0.7Y
Aug 01, 2022 DIST-A 50 51 0.6 0.6Y
Jul 01, 2022 DIST-A 50 51 0.6 0.6Y
Jun 01, 2022 DIST-A 50 51 0.7 0.7Y
May 01, 2022 DIST-A 50 51 0.65 0.6Y
Apr 01, 2022 DIST-A 50 51 0.73 0.7Y
Mar 01, 2022 DIST-A 50 51 0.78 0.7Y
Feb 01, 2022 DIST-A 50 51 0.72 0.6Y
Jan 01, 2022 DIST-A 50 51 0.69 0.6Y
Dec 01, 2021 DIST-A 50 51 0.63 0.6Y
Nov 01, 2021 DIST-A 50 51 0.58 0.7Y
Oct 01, 2021 DIST-A 50 51 0.56 0.7Y
Sep 01, 2021 DIST-A 50 51 0.54 0.6Y
Aug 01, 2021 DIST-A 50 51 0.62 0.7Y
Jul 01, 2021 DIST-A 50 51 0.63 0.7Y
Jun 01, 2021 DIST-A 50 51 0.67 0.7Y
May 01, 2021 DIST-A 50 51 0.69 0.6Y
Apr 01, 2021 DIST-A 50 51 0.71 0.6Y
Mar 01, 2021 DIST-A 50 51 0.72 0.6Y
Feb 01, 2021 DIST-A 50 51 0.69 0.6Y
Jan 01, 2021 DIST-A 50 51 0.73 0.7Y
Dec 01, 2020 DIST-A 50 51 0.7 0.7Y
Nov 01, 2020 DIST-A 50 51 0.59 0.7Y
Oct 01, 2020 DIST-A 50 51 0.5 0.7Y
Sep 01, 2020 DIST-A 50 51 0.7 0.7Y
Aug 01, 2020 DIST-A 50 51 0.55 0.7Y
Jul 01, 2020 DIST-A 50 51 0.58 0.7Y
Jun 01, 2020 DIST-A 50 51 0.59 0.7Y
May 01, 2020 DIST-A 50 51 0.6 0.7Y
Apr 01, 2020 DIST-A 50 51 0.75 0.7Y
Mar 01, 2020 DIST-A 50 51 0.81 0.7Y
Feb 01, 2020 DIST-A 50 51 0.72 0.7Y
Jan 01, 2020 DIST-A 50 51 0.8 0.7Y
Dec 01, 2019 DIST-A 40 42 0.73 0.7Y
Nov 01, 2019 DIST-A 40 42 0.7 0.7Y
Oct 01, 2019 DIST-A 40 42 0.55 0.7Y
Sep 01, 2019 DIST-A 40 42 0.58 0.7Y
Aug 01, 2019 DIST-A 43 45 0.6 0.7Y
Jul 01, 2019 DIST-A 40 42 0.62 0.7Y
Jun 01, 2019 DIST-A 40 42 0.7 0.7Y
May 01, 2019 DIST-A 40 42 0.68 0.7Y
Apr 01, 2019 DIST-A 40 42 0.72 0.7Y
Mar 01, 2019 DIST-A 40 42 0.80 0.7Y
Feb 01, 2019 DIST-A 40 42 0.72 0.7Y
Jan 01, 2019 DIST-A 40 42 0.71 0.7Y
Dec 01, 2018 DIST-A 40 42 0.65 0.7Y
Nov 01, 2018 DIST-A 40 42 0.59 0.7Y
Oct 01, 2018 DIST-A 40 42 0.59 0.7Y
Sep 01, 2018 DIST-A 40 42 0.6 0.7Y
Aug 01, 2018 DIST-A 40 42 0.65 0.7Y
Jul 01, 2018 DIST-A 40 42 0.6 0.7Y
Jun 01, 2018 DIST-A 40 42 0.70 0.7Y
May 01, 2018 DIST-A 40 42 0.71 0.7Y
Apr 01, 2018 DIST-A 40 42 0.79 0.7Y
Mar 01, 2018 DIST-A 40 42 0.8 0.7Y
Feb 01, 2018 DIST-A 40 42 0.76 0.7Y
Jan 01, 2018 DIST-A 40 42 0.8 0.7Y
Dec 01, 2017 DIST-A 40 42 0.77 0.7Y
Nov 01, 2017 DIST-A 40 42 0.54 0.7Y
Oct 01, 2017 DIST-A 40 42 0.62 0.7Y
Sep 01, 2017 DIST-A 40 42 0.52 0.7Y
Aug 01, 2017 DIST-A 40 42 0.64 0.7Y
Jul 01, 2017 DIST-A 40 42 0.6 0.7Y
Jun 01, 2017 DIST-A 40 42 0.67 0.7Y
May 01, 2017 DIST-A 40 42 0.66 0.7Y
Apr 01, 2017 DIST-A 40 42 0.74 0.6Y
Mar 01, 2017 DIST-A 40 42 0.77 0.6Y
Feb 01, 2017 DIST-A 40 42 0.75 0.6Y
Jan 01, 2017 DIST-A 40 42 0.77 0.6Y
Dec 01, 2016 DIST-A 40 42 0.68 0.6Y
Nov 01, 2016 DIST-A 40 42 0.58 0.6Y
Oct 01, 2016 DIST-A 40 42 0.48 0.6Y
Sep 01, 2016 DIST-A 40 42 0.6 0.6Y
Aug 01, 2016 DIST-A 40 42 0.56 0.6Y
Jul 01, 2016 DIST-A 40 42 0.6 0.6Y
Jun 01, 2016 DIST-A 40 42 0.64 0.6Y
May 01, 2016 DIST-A 40 42 0.62 0.6Y
Apr 01, 2016 DIST-A 40 42 0.68 0.6Y
Mar 01, 2016 DIST-A 40 42 0.73 0.6Y
Feb 01, 2016 DIST-A 40 42 0.75 0.6Y
Jan 01, 2016 DIST-A 40 42 0.7 0.6Y
Dec 01, 2015 DIST-A 40 42 0.61 0.6Y
Nov 01, 2015 DIST-A 40 42 0.45 0.6Y
Oct 01, 2015 DIST-A 40 42 0.62 0.6Y
Sep 01, 2015 DIST-A 40 42 0.6 0.6Y
Aug 01, 2015 DIST-A 40 42 0.63 0.6Y
Jul 01, 2015 DIST-A 40 42 0.57 0.6Y
Jun 01, 2015 DIST-A 40 42 0.6 0.6Y
May 01, 2015 DIST-A 40 42 0.62 0.6Y
Apr 01, 2015 DIST-A 40 42 0.64 0.6Y
Mar 01, 2015 DIST-A 40 42 0.7 0.7Y
Feb 01, 2015 DIST-A 40 42 0.7 0.7Y
Jan 01, 2015 DIST-A 40 42 0.8 0.7Y
Dec 01, 2014 DIST-A 40 42 0.67 0.7Y
Nov 01, 2014 DIST-A 40 42 0.53 0.7Y
Oct 01, 2014 DIST-A 40 42 0.60 0.7Y
Sep 01, 2014 DIST-A 40 42 0.61 0.7Y
Aug 01, 2014 DIST-A 40 42 0.58 0.7Y
Jul 01, 2014 DIST-A 40 42 0.6 0.7Y
Jun 01, 2014 DIST-A 40 42 0.67 0.7Y
May 01, 2014 DIST-A 40 42 0.68 0.7Y
Apr 01, 2014 DIST-A 40 42 0.7 0.7Y
Mar 01, 2014 DIST-A 40 42 0.71 0.7Y
Feb 01, 2014 DIST-A 40 42 0.76 0.7Y
Jan 01, 2014 DIST-A 40 42 0.75 0.7Y
Dec 01, 2013 DIST-A 43 45 0.7 0.7Y
Nov 01, 2013 DIST-A 40 42 0.6 0.7Y
Oct 01, 2013 DIST-A 40 42 0.5 0.6Y
Sep 01, 2013 DIST-A 40 42 0.6 0.7Y
Aug 01, 2013 DIST-A 40 42 0.63 0.7Y
Jul 01, 2013 DIST-A 40 42 0.6 0.7Y
Jun 01, 2013 DIST-A 40 42 0.64 0.7Y
May 01, 2013 DIST-A 40 42 0.67 0.7Y
Apr 01, 2013 DIST-A 40 42 0.73 0.7Y
Mar 01, 2013 DIST-A 40 42 0.7 0.7Y
Feb 01, 2013 DIST-A 40 42 0.75 0.7Y
Jan 01, 2013 DIST-A 40 42 0.74 0.7Y
Dec 01, 2012 DIST-A 40 42 0.67 0.7Y
Nov 01, 2012 DIST-A 40 42 0.53 0.7Y
Oct 01, 2012 DIST-A 40 42 0.66 0.7Y
Sep 01, 2012 DIST-A 40 41 0.68 0.7Y
Aug 01, 2012 DIST-A 40 42 0.66 0.7Y
Jul 01, 2012 DIST-A 40 42 0.60 0.7Y
Jun 01, 2012 DIST-A 40 42 0.66 0.7Y
May 01, 2012 DIST-A 40 42 0.7 0.7Y
Apr 01, 2012 DIST-A 40 42 0.73 0.7Y
Mar 01, 2012 DIST-A 40 42 0.67 0.7Y
Feb 01, 2012 DIST-A 40 42 0.74 0.7Y
Jan 01, 2012 DIST-A 40 42 0.66 0.7Y
Dec 01, 2011 DIST-A 40 42 0.69 0.7Y
Nov 01, 2011 DIST-A 40 42 0.63 0.7Y
Oct 01, 2011 DIST-A 40 42 0.66 0.7Y
Sep 01, 2011 DIST-A 40 42 0.70 0.7Y
Aug 01, 2011 DIST-A 40 42 0.70 0.7Y
Jul 01, 2011 DIST-A 40 42 0.69 0.7Y
Jun 01, 2011 DIST-A 40 0 0 0.7Y
May 01, 2011 DIST-A 40 42 0.70 0.7Y
Apr 01, 2011 DIST-A 40 42 0.76 0.7Y
Mar 01, 2011 DIST-A 40 42 0.73 0.7Y
Feb 01, 2011 DIST-A 40 42 0.75 0.7Y
Jan 01, 2011 DIST-A 40 42 0.72 0.7Y
Dec 01, 2010 DIST-A 40 42 0.66 0.7Y
Nov 01, 2010 DIST-A 40 42 0.57 0.7Y
Oct 01, 2010 DIST-A 40 42 0.63 0.7Y
Sep 01, 2010 DIST-A 40 42 0.62 0.7Y
Aug 01, 2010 DIST-A 40 42 0.71 0.7Y
Jul 01, 2010 DIST-A 40 42 0.68 0.7Y
Jun 01, 2010 DIST-A 40 42 0.71 0.7Y
May 01, 2010 DIST-A 40 40 0.73 0.7Y
Apr 01, 2010 DIST-A 40 42 0.81 0.6Y
Mar 01, 2010 DIST-A 40 42 0.73 0.6Y
Feb 01, 2010 DIST-A 40 42 0.83 0.6Y
Jan 01, 2010 DIST-A 40 42 0.82 0.6Y
Dec 01, 2009 DIST-A 40 42 0.78 0.6Y
Nov 01, 2009 DIST-A 40 42 0.57 0.6Y
Oct 01, 2009 DIST-A 40 42 0.69 0.6Y
Sep 01, 2009 DIST-A 40 42 0.62 0.6Y
Aug 01, 2009 DIST-A 40 42 0.66 0.6Y
Jul 01, 2009 DIST-A 40 42 0.74 0.6Y
Jun 01, 2009 DIST-A 40 42 0 0.6Y
May 01, 2009 DIST-A 40 40 0.7Y
Apr 01, 2009 DIST-A 40 42 0.72 0.7Y
Mar 01, 2009 DIST-A 40 42 .82 0.7Y
Feb 01, 2009 DIST-A 40 42 0.76 0.7Y
Jan 01, 2009 DIST-A 40 42 0.77 0.7Y
Dec 01, 2008 DIST-A 40 42 0.75 0.7Y
Nov 01, 2008 DIST-A 40 42 0.59 0.7Y
Oct 01, 2008 DIST-A 40 42 0.66 0.7Y
Sep 01, 2008 DIST-A 40 42 0.69 0.7Y
Aug 01, 2008 DIST-A 40 42 0.70 0.7Y
Jul 01, 2008 DIST-A 40 42 0.71 0.7Y
Jun 01, 2008 DIST-A 40 42 0.74 0.7Y
May 01, 2008 DIST-A 40 42 0.71 0.7Y
Apr 01, 2008 DIST-A 40 42 0.79 0.7Y
Mar 01, 2008 DIST-A 40 42 0.78 0.7Y
Feb 01, 2008 DIST-A 40 42 0.84 0.7Y
Jan 01, 2008 DIST-A 40 42 0.77 0.7Y
Dec 01, 2007 DIST-A 40 42 0.75 0.7Y
Nov 01, 2007 DIST-A 40 42 0.69 0.7Y
Oct 01, 2007 DIST-A 40 42 0.68 0.7Y
Sep 01, 2007 DIST-A 40 42 0.68 0.7Y
Aug 01, 2007 DIST-A 40 42 0.65 0.7Y
Jul 01, 2007 DIST-A 40 42 0.64 0.7Y
Jun 01, 2007 DIST-A 40 42 0.69 0.7Y
May 01, 2007 DIST-A 40 42 0.78 0.7Y
Apr 01, 2007 DIST-A 40 42 0.75 0.7Y
Mar 01, 2007 DIST-A 0 42 0.75 0.7Y
Feb 01, 2007 DIST-A 40 42 0.74 0.7Y
Jan 01, 2007 DIST-A 40 42 0.77 0.7Y
Dec 01, 2006 DIST-A 40 42 0.74 0.7Y
Nov 01, 2006 DIST-A 40 42 0.65 0.7Y
Oct 01, 2006 DIST-A 40 42 0.64 0.6Y
Sep 01, 2006 DIST-A 40 42 0.66 0.6Y
Aug 01, 2006 DIST-A 40 42 0.66 0.6Y
Jul 01, 2006 DIST-A 40 42 0.70 0.6Y
Jun 01, 2006 DIST-A 40 42 0.69 0.6Y
May 01, 2006 DIST-A 40 42 0.72 0.6Y
Apr 01, 2006 DIST-A 40 42 0.68 0.6Y
Mar 01, 2006 DIST-A 40 42 0.72 0.6Y
Feb 01, 2006 DIST-A 40 42 0.72 0.6Y
Jan 01, 2006 DIST-A 40 42 0.68 0.6Y
Dec 01, 2005 DIST-A 40 42 0.65 0.6Y
Nov 01, 2005 DIST-A 40 40 0 0.6Y
Oct 01, 2005 DIST-A 40 42 0.56 0.6Y
Sep 01, 2005 DIST-A 40 42 0.64 0.6Y
Aug 01, 2005 DIST-A 40 42 0.60 0.6Y
Jul 01, 2005 DIST-A 40 42 0.56 0.6Y
Jun 01, 2005 DIST-A 40 42 0.59 0.6Y
May 01, 2005 DIST-A 40 42 .66 0.6Y
Apr 01, 2005 DIST-A 40 42 0.68 0.6Y
Mar 01, 2005 DIST-A 40 42 0.73 0.6Y
Feb 01, 2005 DIST-A 40 42 0.68 0.6Y
Jan 01, 2005 DIST-A 40 42 0.70 0.6Y
Dec 01, 2004 DIST-A 40 42 0.62 0.6Y
Nov 01, 2004 DIST-A 40 42 0.55 0.5Y
Oct 01, 2004 DIST-A 40 42 0.53 0.5Y
Sep 01, 2004 DIST-A 40 42 0.57 0.6Y
 




More information for this water system: SDWIS ID 4544
System Info  ::  Report for Lenders  ::  Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Contacts & Advisories  ::  Site Visits  ::  Public Notice
Coliform Summary  ::  Coliform Results  ::  Coliform Schedules  ::  LT2  ::  GW/GWUDI Source Details  ::  Plan Review  ::  Annual Fee
Chemical Summary  ::  Chemical Results  ::  Chemical Schedules  ::  Chemical Schedule Summary  ::  Arsenic RAA  ::  Cyanotoxins  ::  PFAS
Lead & Copper  ::  Corrosion Control (LCR)  ::  DBP Sample Sites  ::  FANLs  ::  MRDL  ::  GWR 4-Log  ::  Turbidity  ::  SWTR  ::  LRAA

Information for all water systems:
Water System Inventory  ::  Water System Surveys  ::  Outstanding Performers  ::  Treatment Plant Inspections  ::  Treatment  ::  Plan Reviews
Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Deficiencies  ::  System Scores  ::  Exceedances  ::  Public Notices
Water Advisories  ::  Contact Reports  ::  Cyanotoxins  ::  PFAS  ::  Post-wildfire VOCs  ::  Fluoride

Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home  ::  DWS Rules

Need help? Email Drinking Water Services for assistance.Staff/Partner Login