OHA Drinking Water Services
OR41
PWS ID: 92627 ---- LOST LAKE CAMPGROUND
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
Sep 01, 2025 (pdf) Oct 10, 2025 WTP-AYYYY
Aug 01, 2025 (pdf) Sep 05, 2025 WTP-AYYYY
Jul 01, 2025 (pdf) Aug 08, 2025 WTP-AYYYY
May 01, 2025 (pdf) Jun 11, 2025
Late
WTP-AYYYY
Oct 01, 2024 (pdf) Nov 12, 2024
Late
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 10, 2024 WTP-AYYYY
Jun 01, 2024 (pdf) Jul 10, 2024 WTP-AYYYY
May 01, 2024 (pdf) Jun 10, 2024 WTP-AYYYY
Sep 01, 2023 (pdf) Oct 03, 2023 WTP-AYYYY
Aug 01, 2023 (pdf) Sep 13, 2023
Late
WTP-AYYYY
Jul 01, 2023 (pdf) Aug 09, 2023 WTP-AYYYY
Jun 01, 2023 (pdf) Jul 07, 2023 WTP-AYYYY
May 01, 2023 (pdf) Jun 09, 2023 WTP-AYYYY
Oct 01, 2022 (pdf) Nov 04, 2022 WTP-AYYYY
Sep 01, 2022 (pdf) Oct 10, 2022 WTP-AYYYY
Aug 01, 2022 (pdf) Sep 03, 2022 WTP-AYYYY
Jul 01, 2022 (pdf) Aug 02, 2022 WTP-AYYYY
Jun 01, 2022 (pdf) Aug 23, 2022
Late
WTP-AYYYY
May 01, 2022 (pdf) Jun 07, 2022 WTP-AYYYY
Oct 01, 2021 (pdf) Nov 05, 2021 WTP-AYYYY
Sep 01, 2021 (pdf) Oct 18, 2021
Late
WTP-AYYYY
Aug 01, 2021 (pdf) Oct 01, 2021
Late
WTP-AYYYY
Jul 01, 2021 (pdf) Aug 15, 2021
Late
WTP-AYYYY
Jun 01, 2021 (pdf) Jul 15, 2021
Late
WTP-AYYYY
May 01, 2021 (pdf) Jun 11, 2021
Late
WTP-AYYYY
Apr 01, 2021 (pdf) May 20, 2021
Late
WTP-AYYYY