OHA Drinking Water Services
OR41
PWS ID: 00454 ---- ISLAND CITY
Coliform Summary History

Note: Samples for a given monitoring period are due 10 days after period end date. Therefore the most recent monitoring periods may show zero samples reported. This does not mean the water system is out of compliance.

Number of Samples Reported
Abbreviations: TC+: Total Coliform Positive, EC+: E. Coli Positive
Include results older than 2022
Period End Date Routines Required Routines Reported Routine TC+ Routine EC+ Repeats Reported Repeat TC+ Repeat EC+ Period Type
May 31, 2025 2 400000MN
Apr 30, 2025 2 400000MN
Mar 31, 2025 2 400000MN
Feb 28, 2025 2 400000MN
Jan 31, 2025 2 400000MN
Dec 31, 2024 2 400000MN
Nov 30, 2024 2 400000MN
Oct 31, 2024 2 400000MN
Sep 30, 2024 2 400000MN
Aug 31, 2024 2 400000MN
Jul 31, 2024 2 400000MN
Jun 30, 2024 2 400000MN
May 31, 2024 2 400000MN
Apr 30, 2024 2 400000MN
Mar 31, 2024 2 400000MN
Feb 29, 2024 2 400000MN
Jan 31, 2024 2 400000MN
Dec 31, 2023 2 400000MN
Nov 30, 2023 2 400000MN
Oct 31, 2023 2 400000MN
Sep 30, 2023 2 400000MN
Aug 31, 2023 2 400000MN
Jul 31, 2023 2 400000MN
Jun 30, 2023 2 400000MN
May 31, 2023 2 400000MN
Apr 30, 2023 2 400000MN
Mar 31, 2023 2 400000MN
Feb 28, 2023 2 400000MN
Jan 31, 2023 2 400000MN
Dec 31, 2022 2 400000MN
Nov 30, 2022 2 400000MN
Oct 31, 2022 2 420000MN
Sep 30, 2022 2 200000MN
Aug 31, 2022 2 410330MN
Jul 31, 2022 2 400000MN
Jun 30, 2022 2 400000MN
May 31, 2022 2 400000MN
Apr 30, 2022 2 400000MN
Mar 31, 2022 2 400000MN
Feb 28, 2022 2 400000MN
Jan 31, 2022 2 400000MN
Include results older than 2022

More information for this water system: SDWIS ID 4265
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