OHA Drinking Water Services
OR41
PWS ID: 00534 ---- MOLALLA, 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
Feb 01, 2026 Mar 04, 2026 WTP-AYYYYY
Jan 01, 2026 (pdf) Feb 04, 2026 WTP-AYYYYY
Dec 01, 2025 (pdf) Jan 09, 2026 WTP-AYYYYY
Nov 01, 2025 (pdf) Dec 09, 2025 WTP-AYYYYY
Oct 01, 2025 (pdf) Nov 05, 2025 WTP-AYYYYY
Sep 01, 2025 (pdf) Oct 07, 2025 WTP-AYYYYY
Aug 01, 2025 (pdf) Sep 05, 2025 WTP-AYYYYY
Jul 01, 2025 (pdf) Aug 06, 2025 WTP-AYYYYY
Jun 01, 2025 (pdf) Jul 10, 2025 WTP-AYYYYY
May 01, 2025 (pdf) Jun 04, 2025 WTP-AYYYYY
Apr 01, 2025 (pdf) May 06, 2025 WTP-AYYYYY
Mar 01, 2025 (pdf) Apr 08, 2025 WTP-AYYYYY
Feb 01, 2025 (pdf) Mar 06, 2025 WTP-AYYYYY
Jan 01, 2025 (pdf) Feb 04, 2025 WTP-AYYYYY
Dec 01, 2024 (pdf) Jan 07, 2025 WTP-AYYYYY
Nov 01, 2024 (pdf) Dec 03, 2024 WTP-AYYYYY
Oct 01, 2024 (pdf) Nov 01, 2024 WTP-AYYYYY
Sep 01, 2024 (pdf) Oct 02, 2024 WTP-AYYYYY
Aug 01, 2024 (pdf) Sep 03, 2024 WTP-AYYYYY
Jul 01, 2024 (pdf) Aug 01, 2024 WTP-AYYYYY
Jun 01, 2024 (pdf) Jul 01, 2024 WTP-AYYYYY
May 01, 2024 (pdf) Jun 03, 2024 WTP-AYYYYY
Apr 01, 2024 (pdf) May 01, 2024 WTP-AYYYYY
Mar 01, 2024 (pdf) Apr 02, 2024 WTP-AYYYYY
Feb 01, 2024 (pdf) Mar 04, 2024 WTP-AYYYYY
Jan 01, 2024 (pdf) Feb 01, 2024 WTP-AYYYYY
Dec 01, 2023 (pdf) Jan 02, 2024 WTP-AYYYYY
Nov 01, 2023 (pdf) Dec 04, 2023 WTP-AYYYYY
Oct 01, 2023 (pdf) Nov 04, 2023 WTP-AYYYYY
Sep 01, 2023 (pdf) Oct 02, 2023 WTP-AYYYYY
Aug 01, 2023 (pdf) Sep 07, 2023 WTP-AYYYYY
Jul 01, 2023 (pdf) Aug 04, 2023 WTP-AYYYYY
Jun 01, 2023 (pdf) Jul 03, 2023 WTP-AYYYYY
May 01, 2023 (pdf) Jun 10, 2023 WTP-AYYYYY
Apr 01, 2023 (pdf) May 09, 2023 WTP-AYYYYY
Mar 01, 2023 (pdf) Apr 06, 2023 WTP-AYYYYY
Feb 01, 2023 (pdf)
Feb 01, 2023 Amended (pdf)
Mar 03, 2023 WTP-AYYYYY
Jan 01, 2023 (pdf) Feb 02, 2023 WTP-AYYYYY
Dec 01, 2022 (pdf) Jan 09, 2023 WTP-AYYYYY
Nov 01, 2022 (pdf) Dec 09, 2022 WTP-AYYYYY
Oct 01, 2022 (pdf) Nov 08, 2022 WTP-AYYYYY
Sep 01, 2022 (pdf) Oct 10, 2022 WTP-AYYYYY
Aug 01, 2022 (pdf) Sep 07, 2022 WTP-AYYYYY
Jul 01, 2022 (pdf) Aug 04, 2022 WTP-AYYYYY
Jun 01, 2022 (pdf) Jul 07, 2022 WTP-AYYYYY
May 01, 2022 (pdf) Jun 08, 2022 WTP-AYYYYY
Apr 01, 2022 (pdf) May 02, 2022 WTP-AYYYYY
Mar 01, 2022 (pdf) Apr 05, 2022 WTP-AYYYYY
Feb 01, 2022 (pdf) Mar 07, 2022 WTP-AYYYYY
Jan 01, 2022 (pdf) Feb 07, 2022 WTP-AYYYYY
Dec 01, 2021 (pdf) Jan 04, 2022 WTP-AYYYYY
Nov 01, 2021 (pdf) Dec 06, 2021 WTP-AYYYYY
Oct 01, 2021 (pdf) Nov 04, 2021 WTP-AYYYYY
Sep 01, 2021 (pdf) Oct 05, 2021 WTP-AYYYYY
Aug 01, 2021 (pdf) Sep 07, 2021 WTP-AYYYYY
Jul 01, 2021 (pdf) Aug 03, 2021 WTP-AYYYYY
Jun 01, 2021 (pdf) Jul 06, 2021 WTP-AYYYYY
May 01, 2021 (pdf) Jun 03, 2021 WTP-AYYYYY
Apr 01, 2021 (pdf) May 05, 2021 WTP-AYYYYY
Mar 01, 2021 (pdf) Apr 06, 2021 WTP-AYYYYY
Feb 01, 2021 (pdf) Mar 04, 2021 WTP-AYYYYY
Jan 01, 2021 (pdf) Feb 04, 2021 WTP-AYYYYY