OHA Drinking Water Services
OR41
PWS ID: 01542 ---- LAKE OSWEGO - TIGARD WATER SUPPLY
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
  • SRC-AA - 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 60 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)
    2406157-01 06/17/2024 06/24/2024 SRC-AA CLACKAMAS RIVERNDND
    2406020-01 06/03/2024 06/05/2024 SRC-AA CLACKAMAS RIVERNDND
    2405160-01 05/20/2024 05/24/2024 SRC-AA CLACKAMAS RIVERNDND
    2405040-01 05/06/2024 05/10/2024 SRC-AA CLACKAMAS RIVERNDND
    2310286-01 10/30/2023 11/06/2023 SRC-AA CLACKAMAS RIVERNDND
    2310162-01 10/16/2023 10/20/2023 SRC-AA CLACKAMAS RIVERNDND
    2310020-01 10/02/2023 10/06/2023 SRC-AA CLACKAMAS RIVERNDND
    2309156-01 09/18/2023 09/22/2023 SRC-AA CLACKAMAS RIVERNDND
    2309032-01 09/05/2023 09/11/2023 SRC-AA CLACKAMAS RIVERNDND
    2308153-01 08/21/2023 08/24/2023 SRC-AA CLACKAMAS RIVERNDND
    2308049-01 08/07/2023 08/11/2023 SRC-AA CLACKAMAS RIVERNDND
    2307180-01 07/24/2023 07/31/2023 SRC-AA CLACKAMAS RIVERNDND
    2307064-01 07/10/2023 07/13/2023 SRC-AA CLACKAMAS RIVERNDND
    2306221-01 06/26/2023 06/29/2023 SRC-AA CLACKAMAS RIVERNDND
    2306111-01 06/12/2023 06/16/2023 SRC-AA CLACKAMAS RIVERNDND
    2305260-01 05/30/2023 06/02/2023 SRC-AA CLACKAMAS RIVERNDND
    2305144-01 05/15/2023 05/19/2023 SRC-AA CLACKAMAS RIVERNDND
    2305017-01 05/01/2023 05/08/2023 SRC-AA CLACKAMAS RIVERNDND
    2210303-01 10/31/2022 11/04/2022 SRC-AA CLACKAMAS RIVER--ND
    2210303-01RE1 10/31/2022 11/04/2022 SRC-AA CLACKAMAS RIVERND--
    2210197-01 10/17/2022 10/20/2022 SRC-AA CLACKAMAS RIVERNDND
    2210018-01 10/03/2022 10/06/2022 SRC-AA CLACKAMAS RIVERNDND
    2209181-01 09/19/2022 09/26/2022 SRC-AA CLACKAMAS RIVERNDND
    2209034-01 09/06/2022 09/13/2022 SRC-AA CLACKAMAS RIVERNDND
    2208213-01 08/22/2022 08/26/2022 SRC-AA CLACKAMAS RIVERNDND
    2208072-01 08/08/2022 08/12/2022 SRC-AA CLACKAMAS RIVERNDND
    2207202-01 07/25/2022 08/01/2022 SRC-AA CLACKAMAS RIVERNDND
    2207072-01 07/12/2022 07/14/2022 SRC-AA CLACKAMAS RIVERNDND
    2206254-01 06/27/2022 07/01/2022 SRC-AA CLACKAMAS RIVERNDND
    2206123-01 06/13/2022 06/16/2022 SRC-AA CLACKAMAS RIVERNDND
    2205272-01 05/31/2022 06/02/2022 SRC-AA CLACKAMAS RIVERNDND
    2205152-01 05/16/2022 05/20/2022 SRC-AA CLACKAMAS RIVERNDND
    2205020-01 05/02/2022 05/06/2022 SRC-AA CLACKAMAS RIVERNDND
    2110220-01 10/18/2021 10/22/2021 SRC-AA CLACKAMAS RIVERNDND
    2110035-01 10/04/2021 10/11/2021 SRC-AA CLACKAMAS RIVERNDND
    2109216-01 09/20/2021 09/24/2021 SRC-AA CLACKAMAS RIVERNDND
    2109059-01 09/07/2021 09/15/2021 SRC-AA CLACKAMAS RIVERNDND
    2108250-01 08/23/2021 08/27/2021 SRC-AA CLACKAMAS RIVERNDND
    2108114-01 08/09/2021 08/13/2021 SRC-AA CLACKAMAS RIVERNDND
    2107262-01 07/26/2021 07/30/2021 SRC-AA CLACKAMAS RIVERNDND
    2107126-01 07/12/2021 07/16/2021 SRC-AA CLACKAMAS RIVERNDND
    2106320-01 06/28/2021 07/01/2021 SRC-AA CLACKAMAS RIVERNDND
    2106173-01 06/14/2021 06/18/2021 SRC-AA CLACKAMAS RIVERNDND
    2106023-01 06/01/2021 06/04/2021 SRC-AA CLACKAMAS RIVERNDND
    2105176-01 05/17/2021 05/21/2021 SRC-AA CLACKAMAS RIVERNDND
    2105035-01 05/03/2021 05/07/2021 SRC-AA CLACKAMAS RIVERNDND
    2010212-01 10/19/2020 10/23/2020 SRC-AA CLACKAMAS RIVERNDND
    2010040-01 10/05/2020 10/09/2020 SRC-AA CLACKAMAS RIVERNDND
    2009228-01 09/21/2020 09/25/2020 SRC-AA CLACKAMAS RIVERNDND
    2009085-01 09/08/2020 09/11/2020 SRC-AA CLACKAMAS RIVER--ND
    2009085-01RE1 09/08/2020 09/11/2020 SRC-AA CLACKAMAS RIVERND--
    2008298-01 08/24/2020 08/28/2020 SRC-AA CLACKAMAS RIVERNDND
    2008137-01 08/10/2020 08/14/2020 SRC-AA CLACKAMAS RIVERNDND
    2007328-01 07/27/2020 07/31/2020 SRC-AA CLACKAMAS RIVERNDND
    2007138-01 07/13/2020 07/17/2020 SRC-AA CLACKAMAS RIVERNDND
    2006372-01 06/29/2020 07/02/2020 SRC-AA CLACKAMAS RIVERNDND
    2006207-01 06/15/2020 06/19/2020 SRC-AA CLACKAMAS RIVERNDND
    2006034-01 06/01/2020 06/25/2020 SRC-AA CLACKAMAS RIVERNDND
    2005134-01 05/18/2020 05/22/2020 SRC-AA CLACKAMAS RIVERNDND
    2005031-01 05/04/2020 05/08/2020 SRC-AA CLACKAMAS RIVERNDND
     



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