OHA Drinking Water Services
OR41
PWS ID: 00724 ---- ST HELENS, CITY OF
Cyanotoxin Sample Results
See also: Sample Schedules :: Cyanotoxin Rules & Resources :: Excel Spreadsheet

Raw Water Facilities*:

Finished Water Facilities*:
*Only facilities with cyanotoxin data are listed.
Cyanotoxin Sampling Schedules
  • CH-A - 2 Weeks
  • Go to schedule page
    • See purchasers/sellers for this system

    Health Advisory Levels (for entry points and distribution)
  • Total Microcystins: 0.3 ug/L for vulnerable people; 1.6 ug/L for people aged 6 and older.
  • Cylindrospermopsin: 0.7 ug/L for vulnerable people; 3 ug/L for people aged 6 and older.
    • Health advisory level exceedances in entry point and distribution samples are indicated with red text.
    ND = Not detected at the minimum reporting level;  -- = Not sampled 36 results found for selected criteria.
    Sample
    ID    		 Sample
    Date    		 Received
    Date    		 Facility ID Facility Name Raw Water Entry Points and Distribution
    Total Microcystins
    (ug/L)    		 Cylindrospermopsin
    (ug/L)    		 Total Microcystins
    (ug/L)    		 Cylindrospermopsin
    (ug/L)
    2510326-01 10/27/2025 10/31/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2510154-01 10/13/2025 10/17/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2509370-01 09/29/2025 10/03/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2509209-01 09/15/2025 09/19/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2509029-01 09/02/2025 09/08/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2508158-01 08/18/2025 08/21/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2508034-01 08/04/2025 08/08/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2507180-01 07/21/2025 07/25/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2507058-01 07/07/2025 07/11/2025 CH-A COMMON HEADER FOR WTP-A--ND
    2507058-01RE1 07/07/2025 07/11/2025 CH-A COMMON HEADER FOR WTP-AND--
    2506219-01 06/23/2025 06/26/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2505212-01 05/27/2025 06/02/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2505074-01 05/12/2025 05/16/2025 CH-A COMMON HEADER FOR WTP-ANDND
    2410246-01 10/28/2024 11/04/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2410119-01 10/14/2024 10/18/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2409305-01 09/30/2024 10/07/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2409165-01 09/16/2024 09/20/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2409026-01 09/03/2024 09/06/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2408185-01 08/19/2024 08/23/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2408053-01 08/05/2024 08/09/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2407234-01 07/22/2024 07/26/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2407083-01 07/09/2024 07/15/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2406237-01 06/24/2024 06/28/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2406095-01 06/10/2024 06/14/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2405230-01 05/28/2024 05/31/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2405099-01 05/13/2024 05/17/2024 CH-A COMMON HEADER FOR WTP-ANDND
    2310215-01 10/23/2023 10/27/2023 CH-A COMMON HEADER FOR WTP-ANDND
    2310091-01 10/09/2023 10/12/2023 CH-A COMMON HEADER FOR WTP-ANDND
    2309217-01 09/25/2023 09/28/2023 CH-A COMMON HEADER FOR WTP-ANDND
    2309098-01 09/11/2023 09/15/2023 CH-A COMMON HEADER FOR WTP-ANDND
    2309044-01 09/05/2023 09/11/2023 CH-A COMMON HEADER FOR WTP-ANDND
    2308229-01 08/28/2023 09/01/2023 CH-A COMMON HEADER FOR WTP-ANDND
    2308164-01 08/21/2023 08/25/2023 CH-A COMMON HEADER FOR WTP-ANDND
    2308104-01 08/14/2023 08/21/2023 CH-A COMMON HEADER FOR WTP-ANDND
    2308065-01 08/07/2023 08/14/2023 CH-A COMMON HEADER FOR WTP-ANDND
    2308027-01 08/03/2023 08/14/2023 CH-A COMMON HEADER FOR WTP-ANDND
     



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