OHA Drinking Water Services
OR41
PWS ID: 00580 ---- NORTH CLACKAMAS COUNTY WC
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 01, 2026 WTP-B1YYYY
Mar 01, 2026 (pdf) Apr 01, 2026 WTP-B2YYYYY
Feb 01, 2026 (pdf) Mar 03, 2026 WTP-B1YYYY
Feb 01, 2026 (pdf) Mar 03, 2026 WTP-B2YYYYY
Jan 01, 2026 (pdf) Feb 06, 2026 WTP-B1YYYY
Jan 01, 2026 (pdf) Feb 06, 2026 WTP-B2YYYYY
Dec 01, 2025 (pdf) Jan 06, 2026 WTP-B1YYYY
Dec 01, 2025 (pdf) Jan 06, 2026 WTP-B2YYYYY
Nov 01, 2025 (pdf) Dec 03, 2025 WTP-B1YYYY
Nov 01, 2025 (pdf) Dec 03, 2025 WTP-B2YYYYY
Oct 01, 2025 (pdf) Nov 05, 2025 WTP-B1YYYY
Oct 01, 2025 (pdf) Nov 05, 2025 WTP-B2YYYYY
Sep 01, 2025 (pdf) Oct 02, 2025 WTP-B1YYYY
Sep 01, 2025 (pdf) Oct 02, 2025 WTP-B2YYYYY
Aug 01, 2025 (pdf) Sep 04, 2025 WTP-B1YYYY
Aug 01, 2025 (pdf) Sep 04, 2025 WTP-B2YYYYY
Jul 01, 2025 (pdf) Aug 04, 2025 WTP-B1YYYY
Jul 01, 2025 (pdf) Aug 04, 2025 WTP-B2YYYYY
Jun 01, 2025 (pdf) Jul 01, 2025 WTP-B1YYYY
Jun 01, 2025 (pdf) Jul 01, 2025 WTP-B2YYYYY
May 01, 2025 (pdf) Jun 03, 2025 WTP-B1YYYY
May 01, 2025 (pdf) Jun 03, 2025 WTP-B2YYYYY
Apr 01, 2025 (pdf) May 06, 2025 WTP-B1YYYY
Apr 01, 2025 (pdf) May 06, 2025 WTP-B2YYYYY
Mar 01, 2025 (pdf) Apr 03, 2025 WTP-B1YYYY
Mar 01, 2025 (pdf) Apr 03, 2025 WTP-B2YYYY
Feb 01, 2025 (pdf) Mar 03, 2025 WTP-B1YYYY
Feb 01, 2025 (pdf) Mar 03, 2025 WTP-B2YYYYY
Jan 01, 2025 (pdf) Feb 05, 2025 WTP-B1YYYY
Jan 01, 2025 (pdf) Feb 05, 2025 WTP-B2YYYYY
Dec 01, 2024 (pdf) Jan 03, 2025 WTP-B1YYNY
Dec 01, 2024 (pdf) Jan 03, 2025 WTP-B2YYYYY
Nov 01, 2024 (pdf) Dec 04, 2024 WTP-B1YYYY
Nov 01, 2024 (pdf) Dec 04, 2024 WTP-B2YYYYY
Oct 01, 2024 (pdf) Nov 05, 2024 WTP-B1YYYY
Oct 01, 2024 (pdf) Nov 05, 2024 WTP-B2YYYYY
Sep 01, 2024 (pdf) Oct 01, 2024 WTP-B1YYYY
Sep 01, 2024 (pdf) Oct 01, 2024 WTP-B2YYYYY
Aug 01, 2024 (pdf) Sep 04, 2024 WTP-B1YYYY
Aug 01, 2024 (pdf) Sep 04, 2024 WTP-B2YYYYY
Jul 01, 2024 (pdf) Aug 02, 2024 WTP-B1YYYY
Jul 01, 2024 (pdf) Aug 02, 2024 WTP-B2YYYYY
Jun 01, 2024 (pdf) Jul 03, 2024 WTP-B1YYYY
Jun 01, 2024 (pdf) Jul 03, 2024 WTP-B2YYYYY
May 01, 2024 (pdf) Jun 05, 2024 WTP-B1YYYY
May 01, 2024 (pdf) Jun 05, 2024 WTP-B2YYYYY
Apr 01, 2024 (pdf) May 01, 2024 WTP-B1YYYY
Apr 01, 2024 (pdf) May 01, 2024 WTP-B2YYYYY
Mar 01, 2024 (pdf) Apr 03, 2024 WTP-B1YYYY
Mar 01, 2024 (pdf) Apr 03, 2024 WTP-B2YYYYY
Feb 01, 2024 (pdf) Mar 01, 2024 WTP-B1YYYY
Feb 01, 2024 (pdf) Mar 01, 2024 WTP-B2YYYYY
Jan 01, 2024 (pdf) Feb 01, 2024 WTP-B1YYYY
Jan 01, 2024 (pdf) Feb 01, 2024 WTP-B2YYYY
Dec 01, 2023 (pdf) Jan 05, 2024 WTP-B1YYYY
Dec 01, 2023 (pdf) Jan 05, 2024 WTP-B2YYYY
Nov 01, 2023 (pdf) Dec 01, 2023 WTP-B1YYYY
Nov 01, 2023 (pdf) Dec 01, 2023 WTP-B2YYYY
Oct 01, 2023 (pdf) Nov 01, 2023 WTP-B1YYYY
Oct 01, 2023 (pdf) Nov 01, 2023 WTP-B2YYYY
Sep 01, 2023 (pdf) Oct 05, 2023 WTP-B1YYYY
Sep 01, 2023 (pdf) Oct 05, 2023 WTP-B2YYYY
Aug 01, 2023 (pdf) Sep 02, 2023 WTP-B1YYYY
Aug 01, 2023 (pdf) Sep 02, 2023 WTP-B2YYYY
Jul 01, 2023 (pdf) Aug 04, 2023 WTP-B1YYYY
Jul 01, 2023 (pdf) Aug 04, 2023 WTP-B2YYYY
Jun 01, 2023 (pdf) Jul 05, 2023 WTP-B1YYYY
Jun 01, 2023 (pdf) Jul 05, 2023 WTP-B2YYYY
May 01, 2023 (pdf) Jun 01, 2023 WTP-B1YYYY
May 01, 2023 (pdf) Jun 01, 2023 WTP-B2YYYY
Apr 01, 2023 (pdf) May 03, 2023 WTP-B1YYYY
Apr 01, 2023 (pdf) May 03, 2023 WTP-B2YYYY
Mar 01, 2023 (pdf) Apr 04, 2023 WTP-B1YYYY
Mar 01, 2023 (pdf) Apr 04, 2023 WTP-B2YYYY
Feb 01, 2023 (pdf) Mar 01, 2023 WTP-B1YYYY
Feb 01, 2023 (pdf) Mar 01, 2023 WTP-B2YYYY
Jan 01, 2023 (pdf) Feb 01, 2023 WTP-B1YYYY
Jan 01, 2023 (pdf) Feb 01, 2023 WTP-B2YYYY
Dec 01, 2022 (pdf) Jan 03, 2023 WTP-B1YYYY
Dec 01, 2022 (pdf) Jan 03, 2023 WTP-B2YYYY
Nov 01, 2022 (pdf) Dec 01, 2022 WTP-B1YYYY
Nov 01, 2022 (pdf) Dec 01, 2022 WTP-B2YYYY
Oct 01, 2022 (pdf) Nov 02, 2022 WTP-B1YYYY
Oct 01, 2022 (pdf) Nov 02, 2022 WTP-B2YYYY
Sep 01, 2022 (pdf) Oct 04, 2022 WTP-B1YYYY
Sep 01, 2022 (pdf) Oct 04, 2022 WTP-B2YYYY
Aug 01, 2022 (pdf) Sep 01, 2022 WTP-B1YYYY
Aug 01, 2022 (pdf) Sep 01, 2022 WTP-B2YYYY
Jul 01, 2022 (pdf) Aug 02, 2022 WTP-B1YYYY
Jul 01, 2022 (pdf) Aug 02, 2022 WTP-B2YYYY
Jun 01, 2022 (pdf) Jul 01, 2022 WTP-B1YYYY
Jun 01, 2022 (pdf) Jul 01, 2022 WTP-B2YYYY
May 01, 2022 (pdf) Jun 01, 2022 WTP-B1YYYY
May 01, 2022 (pdf) Jun 01, 2022 WTP-B2YYYY
Apr 01, 2022 (pdf) May 04, 2022 WTP-B1YYYY
Apr 01, 2022 (pdf) May 04, 2022 WTP-B2YYYY
Mar 01, 2022 (pdf) Apr 01, 2022 WTP-B1YYYY
Mar 01, 2022 (pdf) Apr 01, 2022 WTP-B2YYYY
Feb 01, 2022 (pdf) Mar 01, 2022 WTP-B1YYYY
Feb 01, 2022 (pdf) Mar 01, 2022 WTP-B2YYYY
Jan 01, 2022 (pdf) Feb 03, 2022 WTP-B1YYYY
Jan 01, 2022 (pdf) Feb 03, 2022 WTP-B2YYYY
Dec 01, 2021 (pdf) Jan 05, 2022 WTP-B1YYYY
Dec 01, 2021 (pdf) Jan 05, 2022 WTP-B2YYYY
Nov 01, 2021 (pdf) Dec 01, 2021 WTP-B1YYYY
Nov 01, 2021 (pdf) Dec 01, 2021 WTP-B2YYYY
Oct 01, 2021 (pdf) Nov 02, 2021 WTP-B1YYYY
Oct 01, 2021 (pdf) Nov 02, 2021 WTP-B2YYYY
Sep 01, 2021 (pdf) Oct 01, 2021 WTP-B1YYYY
Sep 01, 2021 (pdf) Oct 01, 2021 WTP-B2YYYY
Aug 01, 2021 (pdf) Sep 01, 2021 WTP-B1YYYY
Aug 01, 2021 (pdf) Sep 01, 2021 WTP-B2YYYY
Jul 01, 2021 (pdf) Aug 03, 2021 WTP-B1YYYY
Jul 01, 2021 (pdf) Aug 03, 2021 WTP-B2YYYY
Jun 01, 2021 (pdf) Jul 06, 2021 WTP-B1YYYY
Jun 01, 2021 (pdf) Jul 06, 2021 WTP-B2YYYY
May 01, 2021 (pdf) Jun 02, 2021 WTP-B1YYYY
May 01, 2021 (pdf) Jun 02, 2021 WTP-B2YYYY
Apr 01, 2021 (pdf) May 04, 2021 WTP-B1YYYY
Apr 01, 2021 (pdf) May 04, 2021 WTP-B2YYYY
Mar 01, 2021 (pdf) Apr 01, 2021 WTP-B1YYYY
Mar 01, 2021 (pdf) Apr 01, 2021 WTP-B2YYYY
Feb 01, 2021 (pdf) Mar 02, 2021 WTP-B1YYYY
Feb 01, 2021 (pdf) Mar 02, 2021 WTP-B2YYYY
Jan 01, 2021 (pdf) Feb 02, 2021 WTP-B1YYYY
Jan 01, 2021 (pdf) Feb 02, 2021 WTP-B2YYYY