OHA Drinking Water Services
OR41
PWS ID: 00164 ---- CANNON BEACH, CITY OF
Surface Water Treatment Rule

MRDL Summary

Abbreviations:  CFE = Combined filter effluent, CT = Contact time, IFE = Individual filter effluent, MCL = Maximum contaminant level, MRDL = Maximum residual disinfection level, N = No (requirement was not met), WTP = Water treatment plant, Y = Yes (requirement was met).

Results not meeting criteria are outlined in red.

Monitoring
Period		 Date
Received		 Entry
Point		< CFE 95 %
Turbidity
MCL		< CFE Max
Turbidity
MCL		CT's
Required
Met		Chlorine
at Entry
Point
Jun 01, 2025 (pdf) Jul 10, 2025 WTP-AEYYYY
May 01, 2025 (pdf) Jun 10, 2025 WTP-AEYYYY
Dec 01, 2023 (pdf) Dec 27, 2023 WTP-AEYYYY
Nov 01, 2023 (pdf) Dec 05, 2023 WTP-AEYYYY
Oct 01, 2023 (pdf) Nov 13, 2023
Late
 WTP-AEYYYY
Sep 01, 2023 (pdf) Oct 06, 2023 WTP-AEYYYY
Aug 01, 2023 (pdf) Sep 05, 2023 WTP-AEYYYY
Jul 01, 2023 (pdf) Aug 04, 2023 WTP-AEYYYY
Sep 01, 2021 (pdf) Oct 06, 2021 WTP-AEYYYY
Aug 01, 2021 (pdf) Oct 06, 2021
Late
 WTP-AEYYYY


More information for this water system: SDWIS ID 3880
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