OHA Drinking Water Services
OR41
PWS ID: 95630 ---- COLUMBIA HELICOPTERS
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 1 200000MN
Apr 30, 2025 1 200000MN
Mar 31, 2025 1 200000MN
Feb 28, 2025 1 200000MN
Jan 31, 2025 1 200000MN
Dec 31, 2024 1 200000MN
Nov 30, 2024 1 200000MN
Oct 31, 2024 1 200000MN
Sep 30, 2024 1 200000MN
Aug 31, 2024 1 200000MN
Jul 31, 2024 1 200000MN
Jun 30, 2024 1 200000MN
May 31, 2024 1 200000MN
Apr 30, 2024 1 200000MN
Mar 31, 2024 1 200000MN
Feb 29, 2024 1 200000MN
Jan 31, 2024 1 200000MN
Dec 31, 2023 1 200000MN
Nov 30, 2023 1 200000MN
Oct 31, 2023 1 200000MN
Sep 30, 2023 1 210410MN
Aug 31, 2023 1 210620MN
Jul 31, 2023 1 200000MN
Jun 30, 2023 1 200000MN
May 31, 2023 1 200000MN
Apr 30, 2023 1 200000MN
Mar 31, 2023 1 200000MN
Feb 28, 2023 1 200000MN
Jan 31, 2023 1 200000MN
Dec 31, 2022 1 200000MN
Nov 30, 2022 1 200000MN
Oct 31, 2022 1 000000MN
Sep 30, 2022 1 000000MN
Aug 31, 2022 1 300000MN
Jul 31, 2022 1 000000MN
Jun 30, 2022 1 000000MN
May 31, 2022 1 000000MN
Apr 30, 2022 1 000000MN
Mar 31, 2022 1 200000MN
Feb 28, 2022 1 400000MN
Jan 31, 2022 1 000000MN
Include results older than 2022

More information for this water system: SDWIS ID 5520
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