OHA Drinking Water Services
OR41
PWS ID: 00998 ---- DEXTER OAKS CO-OP
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)
04/01/2025 06/30/2025 2Q2025 EP FOR WELLS #2 & #3 EP-A0.002
01/01/2025 03/31/2025 1Q2025 EP FOR WELLS #2 & #3 EP-A0.002
10/01/2024 12/31/2024 4Q2024 EP FOR WELLS #2 & #3 EP-A0.001
07/01/2024 09/30/2024 3Q2024 EP FOR WELLS #2 & #3 EP-A0.002
04/01/2024 06/30/2024 2Q2024 EP FOR WELLS #2 & #3 EP-A0.002
01/01/2024 03/31/2024 1Q2024 EP FOR WELLS #2 & #3 EP-A0.003
10/01/2023 12/31/2023 4Q2023 EP FOR WELLS #2 & #3 EP-A0.003
07/01/2023 09/30/2023 3Q2023 EP FOR WELLS #2 & #3 EP-A0.006
04/01/2023 06/30/2023 2Q2023 EP FOR WELLS #2 & #3 EP-A0.003
01/01/2023 03/31/2023 1Q2023 EP FOR WELLS #2 & #3 EP-A0.013
10/01/2022 12/31/2022 4Q2022 EP FOR WELLS #2 & #3 EP-A0.018
07/01/2022 09/30/2022 3Q2022 EP FOR WELLS #2 & #3 EP-A0.023
04/01/2022 06/30/2022 2Q2022 EP FOR WELLS #2 & #3 EP-A0.027
01/01/2022 03/31/2022 1Q2022 EP FOR WELLS #2 & #3 EP-A0.022
10/01/2021 12/31/2021 4Q2021 EP FOR WELLS #2 & #3 EP-A0.021
07/01/2021 09/30/2021 3Q2021 EP FOR WELLS #2 & #3 EP-A0.019
04/01/2021 06/30/2021 2Q2021 EP FOR WELLS #2 & #3 EP-A0.030
01/01/2021 03/31/2021 1Q2021 EP FOR WELLS #2 & #3 EP-A0.034
10/01/2020 12/31/2020 4Q2020 EP FOR WELLS #2 & #3 EP-A0.027
07/01/2020 09/30/2020 3Q2020 EP FOR WELLS #2 & #3 EP-A0.028
04/01/2020 06/30/2020 2Q2020 EP FOR WELLS #2 & #3 EP-A0.024
01/01/2020 03/31/2020 1Q2020 EP FOR WELLS #2 & #3 EP-A0.021
10/01/2019 12/31/2019 4Q2019 EP FOR WELLS #2 & #3 EP-A0.024
07/01/2019 09/30/2019 3Q2019 EP FOR WELLS #2 & #3 EP-A0.016
04/01/2019 06/30/2019 2Q2019 EP FOR WELLS #2 & #3 EP-A0.011
01/01/2019 03/31/2019 1Q2019 EP FOR WELLS #2 & #3 EP-A0.009
10/01/2018 12/31/2018 4Q2018 EP FOR WELLS #2 & #3 EP-A0.002
07/01/2018 09/30/2018 3Q2018 EP FOR WELLS #2 & #3 EP-A0.002
04/01/2018 06/30/2018 2Q2018 EP FOR WELLS #2 & #3 EP-A0.002
01/01/2018 03/31/2018 1Q2018 EP FOR WELLS #2 & #3 EP-A0.001
10/01/2010 12/31/2010 4Q2010 EP FOR WELLS #2 & #3 EP-A0.005
07/01/2010 09/30/2010 3Q2010 EP FOR WELLS #2 & #3 EP-A0.005
04/01/2010 06/30/2010 2Q2010 EP FOR WELLS #2 & #3 EP-A0.005
01/01/2010 03/31/2010 1Q2010 EP FOR WELLS #2 & #3 EP-A0.003
10/01/2009 12/31/2009 4Q2009 EP FOR WELLS #2 & #3 EP-A0.004
07/01/2009 09/30/2009 3Q2009 EP FOR WELLS #2 & #3 EP-A0.003
04/01/2009 06/30/2009 2Q2009 EP FOR WELLS #2 & #3 EP-A0.003
01/01/2009 03/31/2009 1Q2009 EP FOR WELLS #2 & #3 EP-A0.005
10/01/2008 12/31/2008 4Q2008 EP FOR WELLS #2 & #3 EP-A0.005



More information for this water system: SDWIS ID 3502
System Info  ::  Report for Lenders  ::  Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Contacts & Advisories  ::  Site Visits  ::  Public Notice
Coliform Summary  ::  Coliform Results  ::  Coliform Schedules  ::  LT2  ::  GW/GWUDI Source Details  ::  Plan Review  ::  Annual Fee
Chemical Summary  ::  Chemical Results  ::  Chemical Schedules  ::  Chemical Schedule Summary  ::  Arsenic RAA  ::  Cyanotoxins  ::  PFAS
Lead & Copper  ::  DBP Sample Sites  ::  FANLs  ::  MRDL  ::  GWR 4-Log  ::  Turbidity  ::  SWTR  ::  LRAA  ::  DW Source Protection
Information for all water systems:
Water System Inventory  ::  Water System Surveys  ::  Outstanding Performers  ::  Treatment Plant Inspections  ::  Treatment  ::  Plan Reviews
Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Deficiencies  ::  System Scores  ::  Exceedances  ::  Public Notices  ::  Service Lines
Water Advisories  ::  Contact Reports  ::  Cyanotoxins  ::  PFAS  ::  Post-wildfire VOCs  ::  Fluoride  ::  Certification List  ::  DW Source Protection
Main menu:
Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home  ::  DWS Rules
Need help? Email Drinking Water Services for assistance.Staff/Partner Login