OHA Drinking Water Services
OR41
PWS ID: 00898 ---- TIMBER WATER ASSOCIATION
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
CT's
Required
Met
Chlorine
at Entry
Point
Membrane
Parameters
Met
Mar 01, 2026 (pdf) Apr 09, 2026 WTP-AYYYYY
Feb 01, 2026 (pdf) Mar 16, 2026
Late
WTP-AYYYYY
Jan 01, 2026 (pdf) Feb 06, 2026 WTP-AYYYYY
Dec 01, 2025 (pdf)
Dec 01, 2025 Amended (pdf)
Jan 09, 2026 WTP-AYYYYY
Nov 01, 2025 (pdf) Dec 04, 2025 WTP-AYYYYY
Oct 01, 2025 (pdf) Nov 10, 2025 WTP-AYYYYY
Sep 01, 2025 (pdf) Oct 14, 2025
Late
WTP-AYYYYY
Aug 01, 2025 (pdf) Sep 10, 2025 WTP-AYYYYY
Jun 01, 2025 (pdf) Jul 10, 2025 WTP-AYYYYY
Incomplete
May 01, 2025 (pdf) Jun 10, 2025 WTP-AYYYYY
Apr 01, 2025 (pdf) May 09, 2025 WTP-AYYYY
Mar 01, 2025 (pdf) Apr 08, 2025 WTP-AYYYY
Feb 01, 2025 (pdf) Mar 10, 2025 WTP-AYYYY
Jan 01, 2025 (pdf) Feb 07, 2025 WTP-AYYYY
Dec 01, 2024 (pdf) Jan 10, 2025 WTP-AYYYY
Nov 01, 2024 (pdf) Dec 09, 2024 WTP-AYYYY
Oct 01, 2024 (pdf) Nov 08, 2024 WTP-AYYYY
Sep 01, 2024 (pdf) Oct 10, 2024 WTP-AYYYY
Aug 01, 2024 (pdf) Sep 10, 2024 WTP-AYYYY
Jul 01, 2024 (pdf) Aug 08, 2024 WTP-AYYYY
Jun 01, 2024 (pdf) Jul 10, 2024 WTP-AYYYY
May 01, 2024 (pdf) Jun 10, 2024 WTP-AYYYY
Apr 01, 2024 (pdf) May 15, 2024
Late
WTP-AYYYY
Mar 01, 2024 (pdf) Apr 09, 2024 WTP-AYYYY
Feb 01, 2024 (pdf) Mar 06, 2024 WTP-AYYYY
Jan 01, 2024 (pdf) Feb 09, 2024 WTP-AYYYY
Dec 01, 2023 (pdf) Jan 09, 2024 WTP-AYYYY
Nov 01, 2023 (pdf) Dec 08, 2023 WTP-AYYYY
Oct 01, 2023 (pdf) Nov 09, 2023 WTP-AYYYY
Sep 01, 2023 (pdf) Oct 05, 2023 WTP-AYYYY
Aug 01, 2023 (pdf) Sep 11, 2023
Late
WTP-AYYYY
Jul 01, 2023 (pdf) Aug 10, 2023 WTP-AYYYY
Jun 01, 2023 (pdf) Jul 10, 2023 WTP-AYYYY
May 01, 2023 (pdf) Jun 06, 2023 WTP-AYYYY
Apr 01, 2023 (pdf) May 10, 2023 WTP-AYYYY
Mar 01, 2023 (pdf) Apr 10, 2023 WTP-AYYYY
Feb 01, 2023 (pdf) Mar 08, 2023 WTP-AYYYY
Jan 01, 2023 (pdf) Feb 09, 2023 WTP-AYYYY
Dec 01, 2022 (pdf) Jan 13, 2023
Late
WTP-AYYYY
Nov 01, 2022 (pdf) Dec 08, 2022 WTP-AYYYY
Oct 01, 2022 (pdf) Nov 10, 2022 WTP-AYYYY
Sep 01, 2022 (pdf) Oct 10, 2022 WTP-AYYYY
Aug 01, 2022 (pdf) Sep 12, 2022
Late
WTP-AYYYY
Jul 01, 2022 (pdf) Aug 11, 2022
Late
WTP-AYYYY
Jun 01, 2022 (pdf) Jul 06, 2022 WTP-AYYYY
May 01, 2022 (pdf) Jun 07, 2022 WTP-AYYYY
Apr 01, 2022 (pdf) May 06, 2022 WTP-AYYYY
Mar 01, 2022 (pdf) Apr 15, 2022
Late
WTP-AYYYY
Feb 01, 2022 (pdf) Mar 04, 2022 WTP-AYYYY
Jan 01, 2022 (pdf) Feb 11, 2022
Late
WTP-AYYYY
Dec 01, 2021 (pdf) Jan 10, 2022 WTP-AYYYY
Nov 01, 2021 (pdf) Dec 10, 2021 WTP-AYYYY
Oct 01, 2021 (pdf) Nov 08, 2021 WTP-AYYYY
Sep 01, 2021 (pdf) Oct 08, 2021 WTP-AYYYY
Aug 01, 2021 (pdf) Sep 10, 2021 WTP-AYYYY
Jul 01, 2021 (pdf) Aug 09, 2021 WTP-AYYYY
Jun 01, 2021 (pdf) Jul 09, 2021 WTP-AYYYY
May 01, 2021 (pdf) Jun 09, 2021 WTP-AYYYY
Apr 01, 2021 (pdf) May 10, 2021 WTP-AYYYY
Mar 01, 2021 (pdf) Apr 07, 2021 WTP-AYYYY
Feb 01, 2021 (pdf) Mar 08, 2021 WTP-AYYYY
Jan 01, 2021 (pdf) Feb 08, 2021 WTP-AYYYY