OHA Drinking Water Services
OHA Drinking Water Services
Contact Report Details

PWS ID: OR41 00854
PWS Name: SWISSHOME VILLAGE
 
Who Was Contacted: Matt Grassauer
Contact Phone: 541-972-1859
Contact Date: 12/22/2020
Contacted By: MACPHERSON, JAMES (DWP)
Contact Method/Location: Phone
 
Assistance Type: WATER QUALITY ALERT RESPONSE
Reasons: Disinfection Byproducts
 
Details: Older alerts were addressed with several corrections: cleaning of clearwell sediment, lowering of clearwell volume, installation of standpipe in clearwell, change from flow-based chlorinator to electrically powered chemical feed pump, and a tracer study.
Discussed potential reasons why DBPs concentrations rose again in December. Most likely it was due to the transition from the flow-based chlorinator pump to a diaphragm pump, resulting in higher dose than needed to meet CT. May need to lower the standpipe elevation in the clearwell if problem persists after getting dosing consistency under control.
 
Associated Alerts: CHEM9181 - 12/22/2020 - TOTAL HALOACETIC ACIDS (HAA5) , TOTAL TRIHALOMETHANES (TTHM)

CHEM8965 - 06/15/2020 - TOTAL TRIHALOMETHANES (TTHM)   See also: 06/16/2020

CHEM8897 - 03/26/2020 - TOTAL HALOACETIC ACIDS (HAA5)



For further information on this public water system, click on the area of interest below:
System Info :: Report for Lenders :: Alerts :: Violations :: Compliance & Enforcement :: Contacts & Advisories :: Site Visits :: Public Notice
Coliform Summary :: Coliform Results :: Sampling Schedule for Coliform :: Groundwater/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Group Summary :: Latest Chemical Results :: Entry Point Detects :: Single Analyte Results 
Chemical Schedule Summary :: Chemical Schedule Details
Lead & Copper :: Corrosion Control (LCR) :: Nitrate :: Arsenic :: Radionuclides :: GWR 4-Log :: LT2 :: Cyanotoxins
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 2021