OHA Drinking Water Services
OR41
PWS ID: 00935 ---- WASCO, CITY OF

See also: Coliform Schedules

Chemical Sampling Schedule Status
Facility
ID		 Analyte or Group   Sampling
Interval		 Monitoring Period Days
Until
End		 Samples
Required		 Samples
Received		 Last
Sample
Date
Start End
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2028 - 12/31/2028   5 08/11/2025
 Seasonal sampling period:  06/01  thru  09/30
EP-A  EP for WELL #1 ARSENIC notes9 Years01/01/2023 - 12/31/2031 2,182 1 done 06/01/2023
EP-A  EP for WELL #1 IOC notes9 Years01/01/2020 - 12/31/2028 1,087 1 done 06/01/2023
EP-A  EP for WELL #1 NITRATE  Yearly 01/01/2026 - 12/31/2026 356 1 incomplete04/03/2025
EP-A  EP for WELL #1 NITRITE notes9 Years01/01/2020 - 12/31/2028 1,087 1 done 06/01/2023
EP-A  EP for WELL #1 RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,278 1 incomplete06/01/2023
EP-A  EP for WELL #1 RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,182 1 incomplete04/07/2022
EP-A  EP for WELL #1 RAD - URANIUM  9 Years01/01/2023 - 12/31/2031 2,182 1 done 06/01/2023
EP-A  EP for WELL #1 SOC  3 Years 01/01/2026 - 12/31/2028 1,087 1 incomplete04/03/2025
EP-A  EP for WELL #1 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,087 1 incomplete04/03/2025
EP-B  EP FOR WELL #2 ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,182 1 incomplete04/15/2019
EP-B  EP FOR WELL #2 IOC notes9 Years 01/01/2020 - 12/31/2028 1,087 1 incomplete04/15/2019
EP-B  EP FOR WELL #2 NITRATE  Yearly 01/01/2026 - 12/31/2026 356 1 incomplete04/03/2025
EP-B  EP FOR WELL #2 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,087 1 incomplete04/15/2019
EP-B  EP FOR WELL #2 RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,278 1 incomplete04/03/2025
EP-B  EP FOR WELL #2 RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,278 1 incomplete04/03/2025
EP-B  EP FOR WELL #2 RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,182 1 incomplete12/13/2016
EP-B  EP FOR WELL #2 SOC  3 Years 01/01/2026 - 12/31/2028 1,087 1 incomplete04/03/2025
EP-B  EP FOR WELL #2 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,087 1 incomplete06/01/2023

6  secs
Show Only Active

Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  Distribution SystemHAA5 & TTHM  Yearly01/01/200401/02/20041Sample during the month of warmest water temperature. System discontinued disinfection 01/01/2004.
EP-A  EP for WELL #1ARSENIC  3 Years01/01/200212/31/20131
EP-A  EP for WELL #1RAD - RADIUM 226/228  6 Years01/01/200812/31/20131
EP-A  EP for WELL #1RAD - URANIUM  6 Years01/01/200812/31/20131
EP-B  EP FOR WELL #2ARSENIC  3 Years01/01/200212/31/20131
EP-B  EP FOR WELL #2DI(2-ETHYLHEXYL) PHTHALATE   Quarterly01/01/200806/30/20081Schedule Reflects Increased Monitoring
EP-B  EP FOR WELL #2DI(2-ETHYLHEXYL) PHTHALATE   Yearly01/01/200912/31/20121to be collected in 4th quarter
EP-B  EP FOR WELL #2RAD - URANIUM  6 Years01/01/200812/31/20131
EP-B  EP FOR WELL #2SOC  3 Years01/01/200212/31/20131
EP-B  EP FOR WELL #2TOLUENE   Yearly01/01/200812/31/20121
EP-B  EP FOR WELL #2VOLATILE ORGANICS  3 Years01/01/200212/31/20131

Show Only Active


More information for this water system: SDWIS ID 3475
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
Lead & Copper  ::  DBP Sample Sites  ::  FANLs  ::  MRDL  ::  GWR 4-Log  ::  Turbidity  ::  SWTR  ::  LRAA  ::  DW Source Protection
PFAS data are now located on the Chemical Results page.
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