OHA Drinking Water Services
OR41
PWS ID: 05527 ---- VALLEY VIEW HEIGHTS WATER ASSN
Coliform Summary History

Note: Samples for a given monitoring period are due 10 days after period end date. Therefore the most recent monitoring periods may show zero samples reported. This does not mean the water system is out of compliance.

Number of Samples Reported
Abbreviations: TC+: Total Coliform Positive, EC+: E. Coli Positive
Exclude results older than 2023
Period End Date Routines Required Routines Reported Routine TC+ Routine EC+ Repeats Reported Repeat TC+ Repeat EC+ Period Type
Sep 30, 2025 1 100000QT
Jun 30, 2025 1 000000QT
Mar 31, 2025 1 110000MN
Dec 31, 2024 1 110331QT
Sep 30, 2024 1 100000QT
Jun 30, 2024 1 100000QT
Mar 31, 2024 1 100000QT
Dec 31, 2023 1 000000QT
Sep 30, 2023 1 100000QT
Jun 30, 2023 1 100000QT
Mar 31, 2023 1 000000QT
Dec 31, 2022 1 100000QT
Sep 30, 2022 1 100000QT
Jun 30, 2022 1 100000QT
Mar 31, 2022 1 100000QT
Nov 30, 2021 3 000000MN
Sep 30, 2021 1 100000QT
Jun 30, 2021 1 000000QT
Feb 28, 2021 3 000000MN
Jan 31, 2021 3 321000MN
Dec 31, 2020 1 110333QT
Sep 30, 2020 1 100000QT
Apr 30, 2020 3 300000MN
Mar 31, 2020 1 111530QT
Dec 31, 2019 1 100000QT
Sep 30, 2019 1 000000QT
Jun 30, 2019 1 100000QT
Mar 31, 2019 1 100000QT
Dec 31, 2018 1 100000QT
Sep 30, 2018 1 000000QT
Jun 30, 2018 1 000000QT
Jan 31, 2018 3 000000MN
Dec 31, 2017 1 110630QT
Sep 30, 2017 1 000000QT
Jun 30, 2017 1 000000QT
Mar 31, 2017 1 000000QT
Dec 31, 2016 1 000000QT
Sep 30, 2016 1 100000QT
Jun 30, 2016 1 000000QT
Mar 31, 2016 1 000000QT
Dec 31, 2015 1 000000QT
Sep 30, 2015 1 000000QT
Jun 30, 2015 1 000000QT
Mar 31, 2015 1 000000QT
Dec 31, 2014 1 100000QT
Sep 30, 2014 1 000000QT
Jun 30, 2014 1 000000QT
Mar 31, 2014 1 000000QT
Dec 31, 2013 1 000000QT
Sep 30, 2013 1 000000QT
Jun 30, 2013 1 000000QT
Mar 31, 2013 1 000000QT
Dec 31, 2012 5 000000MN
Sep 30, 2012 1 100000QT
Jun 30, 2012 1 100000QT
Mar 31, 2012 1 000000QT
Dec 31, 2011 1 200000QT
Sep 30, 2011 1 500000QT
Jun 30, 2011 5 000000MN
May 31, 2011 5 540000MN
Apr 30, 2011 5 551000MN
Mar 31, 2011 1 111320QT
Dec 31, 2010 1 100000QT
Sep 30, 2010 5 400000MN
Jul 31, 2010 5 000440MN
Jun 30, 2010 5 521000MN
May 31, 2010 5 540000MN
Feb 28, 2010 5 500000MN
Exclude results older than 2023