OHA Drinking Water Services
OR41
PWS ID: 05950 ---- 57TH & MAPLE WATER SYSTEM
Coliform Results

See also:  Coliform Fact Sheet  ::  Coliform Schedules  ::  Archived Results  ::  Batch Numbers

Sample types:  AS=Assessment, CO=Confirmation, MU=Make-up, RP=Repeat, RT=Routine, SP=Special, TG=Triggered. See the glossary for more information.

Filter options:  Show special samples  ::  Show rejected samples  ::  Include results older than 2023

Sample
Date		 #
Samples		 Sample
Type		 Coliform
Type		 Result Sample
ID		 Repeat of
Sample ID		 Sample
Site		 Facility Chlorine
Residual		 Received
Date
Oct 22, 2025 1RT Total Absent 175-1241-1 5650 NW MAPLE KITCHEN FAUCET DIST-A Oct 24, 2025
RT E. coli Absent 175-1241-1 5650 NW MAPLE KITCHEN FAUCET DIST-A
Aug 19, 2024 1RT Total Absent 24-47355 DIST-A Aug 20, 2024
Feb 14, 2023 1RT Total Absent 23-08585 DIST-A Feb 17, 2023



See also:  Coliform Fact Sheet  ::  Coliform Schedules  ::  Archived Results  ::  Batch Numbers

Sample types:  AS=Assessment, CO=Confirmation, MU=Make-up, RP=Repeat, RT=Routine, SP=Special, TG=Triggered. See the glossary for more information.

Filter options:  Show special samples  ::  Show rejected samples  ::  Include results older than 2023