OHA Drinking Water Services
OR41
PWS ID: 94758 ---- BLM RAND RNGR STA/INFO CTR
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
Oct 01, 2025 (pdf) Oct 31, 2025 WTP-AYYYY
Sep 01, 2025 (pdf) Oct 08, 2025 WTP-AYYYY
Aug 01, 2025 (pdf) Sep 05, 2025 WTP-AYYYY
Jul 01, 2025 (pdf) Aug 05, 2025 WTP-AYYYY
Jun 01, 2025 (pdf) Jul 04, 2025 WTP-AYYYY
May 01, 2025 (pdf) Jun 08, 2025 WTP-AYYYY
Oct 01, 2024 (pdf) Nov 05, 2024 WTP-AYYYY
Sep 01, 2024 (pdf) Oct 04, 2024 WTP-AYYYY
Aug 01, 2024 (pdf) Sep 09, 2024 WTP-AYYYY
Jul 01, 2024 (pdf) Aug 02, 2024 WTP-AYYYY
Jun 01, 2024 (pdf) Jul 10, 2024 WTP-AYYYY
May 01, 2024 (pdf) Jun 13, 2024
Late
 WTP-AYYYY
Oct 01, 2023 (pdf) Nov 03, 2023 WTP-AYYYY
Sep 01, 2023 (pdf) Oct 05, 2023 WTP-AYYYY
Aug 01, 2023 (pdf) Sep 05, 2023 WTP-AYYYY
Jul 01, 2023 (pdf) Aug 08, 2023 WTP-AYYYY
Jun 01, 2023 (pdf) Jul 08, 2023 WTP-AYYYY
May 01, 2023 (pdf) Jun 03, 2023 WTP-AYYYY
Apr 01, 2023 (pdf) May 03, 2023 WTP-AYYYY