OHA Drinking Water Services
OR41
PWS ID: 00906 ---- TUALATIN, CITY OF


Water System History Details    -   Click here for End-of-Day View
Date of
Status Change
Record
Sequence
Active or
Inactive
Primary
Source
PWS
Type
Population PWS
Name
Current Status
01/13/2025
8ASWPC28,106        TUALATIN, CITY OF
01/13/20257ASWPC 28,000        TUALATIN, CITY OF
06/24/20216ASWPC 26,879        TUALATIN, CITY OF
08/13/20155ASWPC 26,025        TUALATIN, CITY OF
05/26/20104ASWPC 25,464        TUALATIN, CITY OF
01/25/20063ASWPC 24,100        TUALATIN, CITY OF
07/03/20032ASWPNP 0        TUALATIN, CITY OF
07/03/20031ASWPC 21,405        TUALATIN, CITY OF


Annual Operating Period History
Population
Type
Avg Daily
Population
Start
Month
Start
Day
End
Month
End
Day
Effective
Begin Date
Effective
End Date
Residential2810611123111/21/2024
Residential2800011123106/08/202111/20/2024
Residential2687911123106/26/201506/07/2021
Residential2602511123105/26/201006/25/2015
Residential2546411123101/01/200605/25/2010
Residential2410011123106/19/200312/31/2005
Residential24100111231First Record06/18/2003