PWS ID: 00665 ---- TUALATIN VALLEY WATER DISTRICT

Water System History    -   Click here for Detail View
Date of
Status Change
Active or
Inactive
Primary
Source
PWS
Type
Population PWS
Name
Current Status
01/19/2021
ASWPC217,000        TUALATIN VALLEY WATER DISTRICT
01/19/2021ASWPC 222,000        TUALATIN VALLEY WATER DISTRICT
10/24/2017ASWPC 206,600        TUALATIN VALLEY WATER DISTRICT
07/26/2013ASWPC 197,200        TUALATIN VALLEY WATER DISTRICT
10/30/2009ASWPC 197,200        TUALATIN VALLEY WD
10/26/2009ASWPC 192,700        TUALATIN VALLEY WD
03/30/2006ASWPC 158,000        TUALATIN VALLEY WD


Annual Operating Period History
Population
Type
Avg Daily
Population
Start
Month
Start
Day
End
Month
End
Day
Effective
Begin Date
Effective
End Date
Residential21700011123110/01/2020
Residential22200011123109/22/201709/30/2020
Residential20660011123107/26/201309/21/2017
Residential19720011123110/13/200907/25/2013
Residential192700111231First Record10/12/2009


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 :: PFAS
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA