OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details
PWS ID: OR41 00802
PWS Name: ARCH CAPE WATER DISTRICT
 
Who Was Contacted and Phone: Thomas Merrell (503) 687-4198
Contact Date: 09/08/2010
Contacted By: HOFELD, EVAN (REGION 1)
Contact Method/Location: Office
 
Assistance Type: WATER QUALITY ALERT RESPONSE
Reasons: Disinfection Byproducts
DBPs
 
Details: SUMMARY: TTHM result of 0.102 mg/l and HAA5 result of 0.12 mg/l sampled 8-26-10 DETAILS: Received an alert for TTHM results of 0.102 mg/l and HAA5 results of 0.12 mg/l from a sample taken 8-26-10. 3rd quarter 2010 RAA is 0.117 mg/l for TTHM and 0.129 mg/l for HAA5. System is under a Bilateral Compliance agreement to install membrane filtration with ACH coagulation for improved DBP precursor removal. Plans were reviewed and granted approval to proceed with construction on 12-23-09. System issued public notice 1st, 2nd, 3rd, and 4th quarter 2010 for the DBP MCL. ACTION NEEDED: System to proceed with membrane installation and continue to issue quarterly public notice as long as the DBP running annual average results exceed the MCL.
 
Associated Alerts: CHEM4362 - 09/08/2010 - TOTAL HALOACETIC ACIDS (HAA5) , TTHM

CHEM4362 - 09/08/2010 - TOTAL HALOACETIC ACIDS (HAA5) , TTHM


More information for this water system: SDWIS ID 3909
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
Corrosion Control has moved to the Lead & Copper 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
Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home  ::  DWS Rules
Need help? Email Drinking Water Services for assistance.Staff/Partner Login