OHA Drinking Water Services
OR41
PWS ID: 06155 ---- MANZANITA HILLS SUBDIVISION
Arsenic Running Annual Averages

Results shown are only for quarterly or monthly monitoring schedules.
Averages are subject to change as new data is taken into consideration.

Arsenic MCL = 0.010 mg/L. MCL exceedances are indicated with red text.

MP Begin MP End MP Name Location Sample
Point		 Arsenic RAA
(mg/L)
11/01/2025 11/30/2025 NOV2025 EP FOR WELL EP-A0.007
10/01/2025 10/31/2025 OCT2025 EP FOR WELL EP-A0.007
09/01/2025 09/30/2025 SEP2025 EP FOR WELL EP-A0.009
08/01/2025 08/31/2025 AUG2025 EP FOR WELL EP-A0.008
07/01/2025 07/31/2025 JUL2025 EP FOR WELL EP-A0.008
04/01/2025 06/30/2025 2Q2025 EP FOR WELL EP-A0.011
01/01/2025 03/31/2025 1Q2025 EP FOR WELL EP-A0.012
10/01/2024 12/31/2024 4Q2024 EP FOR WELL EP-A0.014
07/01/2024 09/30/2024 3Q2024 EP FOR WELL EP-A0.014
04/01/2024 06/30/2024 2Q2024 EP FOR WELL EP-A0.013
01/01/2024 03/31/2024 1Q2024 EP FOR WELL EP-A0.013
10/01/2023 12/31/2023 4Q2023 EP FOR WELL EP-A0.012
07/01/2023 09/30/2023 3Q2023 EP FOR WELL EP-A0.010
04/01/2023 06/30/2023 2Q2023 EP FOR WELL EP-A0.011
01/01/2023 03/31/2023 1Q2023 EP FOR WELL EP-A0.011
10/01/2022 12/31/2022 4Q2022 EP FOR WELL EP-A0.013
07/01/2022 09/30/2022 3Q2022 EP FOR WELL EP-A0.015
04/01/2022 06/30/2022 2Q2022 EP FOR WELL EP-A0.016
01/01/2022 03/31/2022 1Q2022 EP FOR WELL EP-A0.017
10/01/2021 12/31/2021 4Q2021 EP FOR WELL EP-A0.017
07/01/2021 09/30/2021 3Q2021 EP FOR WELL EP-A0.018
04/01/2021 06/30/2021 2Q2021 EP FOR WELL EP-A0.018
01/01/2021 03/31/2021 1Q2021 EP FOR WELL EP-A0.018
10/01/2020 12/31/2020 4Q2020 EP FOR WELL EP-A0.023
07/01/2020 09/30/2020 3Q2020 EP FOR WELL EP-A0.022
04/01/2020 06/30/2020 2Q2020 EP FOR WELL EP-A0.022
01/01/2020 03/31/2020 1Q2020 EP FOR WELL EP-A0.021
10/01/2019 12/31/2019 4Q2019 EP FOR WELL EP-A0.014
07/01/2019 09/30/2019 3Q2019 EP FOR WELL EP-A0.014
04/01/2019 06/30/2019 2Q2019 EP FOR WELL EP-A0.014
01/01/2019 03/31/2019 1Q2019 EP FOR WELL EP-A0.014
10/01/2018 12/31/2018 4Q2018 EP FOR WELL EP-A0.014
07/01/2018 09/30/2018 3Q2018 EP FOR WELL EP-A0.013
04/01/2018 06/30/2018 2Q2018 EP FOR WELL EP-A0.015
01/01/2018 03/31/2018 1Q2018 EP FOR WELL EP-A0.012
10/01/2017 12/31/2017 4Q2017 EP FOR WELL EP-A0.011



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