OHA Drinking Water Services
OR41
PWS ID: 00954 ---- WILSONVILLE, CITY OF
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 30 000000MN
Apr 30, 2025 30 3000000MN
Mar 31, 2025 30 3000000MN
Feb 28, 2025 30 3000000MN
Jan 31, 2025 30 3000000MN
Dec 31, 2024 30 3000000MN
Nov 30, 2024 30 3000000MN
Oct 31, 2024 30 3000000MN
Sep 30, 2024 30 3000000MN
Aug 31, 2024 30 3000000MN
Jul 31, 2024 30 3000000MN
Jun 30, 2024 30 3000000MN
May 31, 2024 30 3000000MN
Apr 30, 2024 30 3000000MN
Mar 31, 2024 30 3000000MN
Feb 29, 2024 30 3000000MN
Jan 31, 2024 30 3000000MN
Dec 31, 2023 30 3110300MN
Nov 30, 2023 30 3110300MN
Oct 31, 2023 30 3000000MN
Sep 30, 2023 30 3000000MN
Aug 31, 2023 30 3000000MN
Jul 31, 2023 30 3000000MN
Jun 30, 2023 30 3000000MN
May 31, 2023 30 3000000MN
Apr 30, 2023 30 3000000MN
Mar 31, 2023 30 3000000MN
Feb 28, 2023 30 3000000MN
Jan 31, 2023 30 3000000MN
Dec 31, 2022 30 3000000MN
Nov 30, 2022 30 3000000MN
Oct 31, 2022 30 3000000MN
Sep 30, 2022 30 3000000MN
Aug 31, 2022 30 3000000MN
Jul 31, 2022 30 3000000MN
Jun 30, 2022 30 3000000MN
May 31, 2022 30 3000000MN
Apr 30, 2022 30 3000000MN
Mar 31, 2022 30 3000000MN
Feb 28, 2022 30 3000000MN
Jan 31, 2022 30 3000000MN
Include results older than 2022

More information for this water system: SDWIS ID 4377
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