OHA Drinking Water Services
OR41
PWS ID: 00954 ---- WILSONVILLE, CITY OF
Surface Water Treatment Rule

MRDL Summary

Abbreviations:  CFE = Combined filter effluent, CT = Contact time, IFE = Individual filter effluent, MCL = Maximum contaminant level, MRDL = Maximum residual disinfection level, N = No (requirement was not met), WTP = Water treatment plant, Y = Yes (requirement was met).

Results not meeting criteria are outlined in red.

Monitoring
Period
Date
Received
Entry
Point
< CFE 95 %
Turbidity
MCL
< CFE Max
Turbidity
MCL
IFE
Triggers
Met
CT's
Required
Met
Chlorine
at Entry
Point
May 01, 2024 (pdf) Jun 04, 2024 WTP-HYYYYY
Apr 01, 2024 (pdf) May 07, 2024 WTP-HYYYYY
Mar 01, 2024 (pdf) Apr 05, 2024 WTP-HYYYYY
Feb 01, 2024 (pdf) Mar 04, 2024 WTP-HYYYYY
Jan 01, 2024 (pdf) Feb 05, 2024 WTP-HYYYYY
Dec 01, 2023 (pdf) Jan 02, 2024 WTP-HYYYYY
Nov 01, 2023 (pdf) Dec 05, 2023 WTP-HYYYYY
Oct 01, 2023 (pdf) Nov 06, 2023 WTP-HYYYYY
Sep 01, 2023 (pdf) Oct 04, 2023 WTP-HYYYYY
Aug 01, 2023 (pdf) Sep 05, 2023 WTP-HYYYYY
Jul 01, 2023 (pdf) Aug 08, 2023 WTP-HYYYYY
Jun 01, 2023 (pdf) Jul 06, 2023 WTP-HYYYYY
May 01, 2023 (pdf) Jun 08, 2023 WTP-HYYYYY
Apr 01, 2023 (pdf) May 09, 2023 WTP-HYYYYY
Mar 01, 2023 (pdf) Apr 03, 2023 WTP-HYYYYY
Feb 01, 2023 (pdf) Mar 02, 2023 WTP-HYYYYY
Jan 01, 2023 (pdf) Feb 06, 2023 WTP-HYYYYY
Dec 01, 2022 (pdf) Jan 05, 2023 WTP-HYYYYY
Nov 01, 2022 (pdf) Dec 01, 2022 WTP-HYYYYY
Oct 01, 2022 (pdf) Nov 07, 2022 WTP-HYYYYY
Sep 01, 2022 (pdf) Oct 03, 2022 WTP-HYYYYY
Aug 01, 2022 (pdf) Sep 01, 2022 WTP-HYYYYY
Jul 01, 2022 (pdf) Aug 08, 2022 WTP-HYYYYY
Jun 01, 2022 (pdf) Jul 04, 2022 WTP-HYYYYY
May 01, 2022 (pdf) Jun 02, 2022 WTP-HYYYYY
Apr 01, 2022 (pdf) May 05, 2022 WTP-HYYYYY
Mar 01, 2022 (pdf) Apr 05, 2022 WTP-HYYYYY
Feb 01, 2022 (pdf) Mar 04, 2022 WTP-HYYYYY
Jan 01, 2022 (pdf) Feb 02, 2022 WTP-HYYYYY
Dec 01, 2021 (pdf) Jan 03, 2022 WTP-HYYYYY
Nov 01, 2021 (pdf) Dec 03, 2021 WTP-HYYYYY
Oct 01, 2021 (pdf) Nov 01, 2021 WTP-HYYYYY
Sep 01, 2021 (pdf) Oct 04, 2021 WTP-HYYYYY
Aug 01, 2021 (pdf) Sep 02, 2021 WTP-HYYYYY
Jul 01, 2021 (pdf) Aug 02, 2021 WTP-HYYYYY
Jun 01, 2021 (pdf) Jul 02, 2021 WTP-HYYYYY
May 01, 2021 (pdf) Jun 03, 2021 WTP-HYYYYY
Apr 01, 2021 (pdf) May 05, 2021 WTP-HYYYYY
Mar 01, 2021 (pdf) Apr 01, 2021 WTP-HYYYYY
Feb 01, 2021 (pdf) Mar 03, 2021 WTP-HYYYYY
Jan 01, 2021 (pdf) Feb 03, 2021 WTP-HYYYYY
Dec 01, 2020 Jan 06, 2021 WTP-HYYYYY
Nov 01, 2020 Dec 01, 2020 WTP-HYYYYY
Oct 01, 2020 Nov 02, 2020 WTP-HYYYYY
Sep 01, 2020 Oct 01, 2020 WTP-HYYYYY
Aug 01, 2020 Sep 02, 2020 WTP-HYYYYY
Jul 01, 2020 Aug 04, 2020 WTP-HYYYYY
Jun 01, 2020 Jul 07, 2020 WTP-HYYYYY
May 01, 2020 Jun 02, 2020 WTP-HYYYYY
Apr 01, 2020 May 05, 2020 WTP-HYYYYY
Mar 01, 2020 Apr 02, 2020 WTP-HYYYYY
Feb 01, 2020 Mar 03, 2020 WTP-HYYYYY
Jan 01, 2020 Feb 04, 2020 WTP-HYYYYY
Dec 01, 2019 Jan 06, 2020 WTP-HYYYYY
Nov 01, 2019 Dec 05, 2019 WTP-HYYYYY
Oct 01, 2019 Nov 05, 2019 WTP-HYYYYY
Sep 01, 2019 Oct 07, 2019 WTP-HYYYYY
Aug 01, 2019 Sep 06, 2019 WTP-HYYYYY
Jul 01, 2019 Aug 06, 2019 WTP-HYYYYY
Jun 01, 2019 Jul 05, 2019 WTP-HYYYYY
May 01, 2019 Jun 05, 2019 WTP-HYYYYY
Apr 01, 2019 May 09, 2019 WTP-HYYYYY
Mar 01, 2019 Apr 02, 2019 WTP-HYYYYY
Feb 01, 2019 Mar 04, 2019 WTP-HYYYYY
Jan 01, 2019 Feb 04, 2019 WTP-HYYYYY



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