Contact Report Details | Data Online | Oregon Drinking Water Services

More information for this water system: SDWIS ID 4106
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

OHA Drinking Water Services Contact Report Details
PWS ID:	OR41 00457
PWS Name:	LAKE OSWEGO MUNICIPAL WATER

Who Was Contacted and Phone:	Kari Duncan (503) 635-0394
Contact Date:	07/08/2013
Contacted By:	FARRELLY, PETER (DWP)
Contact Method/Location:	Office

Assistance Type:	PLAN REVIEW
Reasons:	Lead or Copper Operations

Details:	SUMMARY: Changing corrosion control from slaked lime to caustic soda DETAILS: Lake O. is changing their corrosion control. Pete changed their monitoring frequency to 2 six-month rounds of standard number of samples (60). ACTION NEEDED: Evaluate results from two demonstration rounds in summer 2014 to see if the results support returning to the reduced schedule: 30 samples triennially