OHA Drinking Water Services
OR41
PWS ID: 93944 ---- DOUGLAS CO PKS WHISTLERS BEND
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
Feb 01, 2026 (pdf) Feb 27, 2026 WTP-AYYYY
Dec 01, 2025 (pdf) Jan 23, 2026
Late
WTP-AYYYY
Nov 01, 2025 (pdf) Jan 23, 2026
Late
WTP-AYYYY
Oct 01, 2025 (pdf) Nov 10, 2025 WTP-AYYYY
Sep 01, 2025 (pdf) Oct 06, 2025 WTP-AYYYY
Aug 01, 2025 (pdf) WTP-AYYYY
Jul 01, 2025 (pdf) Aug 06, 2025 WTP-AYYYY
Jun 01, 2025 (pdf) Jul 10, 2025 WTP-AYYYY
May 01, 2025 (pdf) Jun 04, 2025 WTP-AYYYY
Apr 01, 2025 (pdf) May 02, 2025 WTP-AY
Incomplete
Y
Incomplete
N
Incomplete
Y
Incomplete
Oct 01, 2024 (pdf) Mar 18, 2025
Late
WTP-AYYY
Incomplete
Y
Sep 01, 2024 (pdf) Mar 18, 2025
Late
WTP-AYYY
Incomplete
Y
Aug 01, 2024 (pdf) Mar 18, 2025 WTP-AY
Incomplete
Y
Incomplete
Y
Incomplete
Y
Incomplete
Jul 01, 2024 (pdf) Mar 18, 2025 WTP-AY
Incomplete
Y
Incomplete
Y
Incomplete
Y
Incomplete
Jun 01, 2024 (pdf) Mar 18, 2025 WTP-AY
Incomplete
Y
Incomplete
Y
Incomplete
Y
Incomplete
Sep 01, 2023 (pdf) Oct 02, 2023 WTP-AYYYY
Aug 01, 2023 (pdf) Sep 06, 2023 WTP-AYYYY
Jul 01, 2023 (pdf) Aug 05, 2023 WTP-AYYYY
Dec 01, 2022 (pdf) Jan 09, 2023 WTP-AYYYY
Nov 01, 2022 (xls) Dec 05, 2022 WTP-AYYYY
Oct 01, 2022 (pdf) Oct 31, 2022 WTP-AYYYY
Sep 01, 2022 (pdf) Oct 04, 2022 WTP-AYYYY
Aug 01, 2022 (pdf) Sep 01, 2022 WTP-AYYNY
Jul 01, 2022 (pdf) Aug 09, 2022 WTP-AYYYY
Mar 01, 2022 (pdf) Mar 29, 2022 WTP-AYYYY
Feb 01, 2022 (pdf) Mar 29, 2022
Late
WTP-AYYYY
Jan 01, 2022 (pdf) Mar 29, 2022
Late
WTP-AYYYY
Dec 01, 2021 (pdf) Jan 10, 2022 WTP-AYYYY
Nov 01, 2021 (pdf) Dec 15, 2021
Late
WTP-AYYYY
Oct 01, 2021 (xls) Dec 23, 2021
Late
WTP-AYYYY
Sep 01, 2021 (xls) Dec 23, 2021
Late
WTP-AYYYY
Aug 01, 2021 (xls) Dec 23, 2021
Late
WTP-AYYYY
Jul 01, 2021 (xls) Aug 09, 2021 WTP-AYYYY
Jun 01, 2021 (xls) Jul 12, 2021
Late
WTP-AYYYY
May 01, 2021 (xls) Jun 10, 2021 WTP-AYYYY
Apr 01, 2021 (xls) May 10, 2021 WTP-AYYYY
Mar 01, 2021 (xls) Apr 09, 2021 WTP-AYYYY
Feb 01, 2021 (xls) Mar 09, 2021 WTP-AYYYY
Jan 01, 2021 (xls) Feb 25, 2021
Late
WTP-AYYYY