OHA Drinking Water Services
OR41
PWS ID: 00906 ---- TUALATIN, CITY OF
System Information     Schedule Counts
Status:  ACTIVE
System Type:  Community
Population Served:  28,000		 Active:  12     Show Only Active
Inactive:  0
Expired:  19

Routine Sampling Schedules For Chemicals
Facility
ID		 Name Status Test Group Samples
Required		    Sampling
Interval		 Start End    Notes
DIST-A DISTRIBUTION SYSTEMAASBESTOS, DIST1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
DIST-A DISTRIBUTION SYSTEMALEAD & COPPER30  Yearly01/01/2024OpenCollect samples between June 1st and Sept 30th
DIST-A DISTRIBUTION SYSTEMASTAGE 2 DBP4  Quarterly07/01/2015OpenSample in January, April, July and October
EP-B EP FOR 108TH ASR WELLAARSENIC1  9 Years01/01/2017OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR 108TH ASR WELLAIOC1  9 Years01/01/2017OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR 108TH ASR WELLANITRATE1  Yearly01/01/2009Open
EP-B EP FOR 108TH ASR WELLANITRITE1  9 Years01/01/2017OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR 108TH ASR WELLARAD - GROSS ALPHA1  9 Years01/01/2014OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR 108TH ASR WELLARAD - RADIUM 226/2281  9 Years01/01/2014OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR 108TH ASR WELLARAD - URANIUM1  6 Years01/01/2023Open
EP-B EP FOR 108TH ASR WELLASOC2  3 Years01/01/2014Open2 Consec. QT Samples
EP-B EP FOR 108TH ASR WELLAVOLATILE ORGANICS1  3 Years01/01/2014Open
Expired Schedules
DIST-ADISTRIBUTION SYSTEMAHAA5 & TTHM4  Quarterly01/01/200406/30/2008
DIST-ADISTRIBUTION SYSTEMAHAA5 & TTHM1  Quarterly07/01/200803/31/2012Schedule Reflects Monitoring Reduction Granted
DIST-ADISTRIBUTION SYSTEMALEAD & COPPER100  6 Months01/01/200206/30/2017Schedule Reflects PWB Joint Monitoring Plan
DIST-ADISTRIBUTION SYSTEMALEAD & COPPER60  6 Months07/01/201706/30/2019
DIST-ADISTRIBUTION SYSTEMALEAD & COPPER60  6 Months07/01/202212/31/2023Collect samples from cold water, drinking water taps.
DIST-ADISTRIBUTION SYSTEMALEAD & COPPER30  Yearly01/01/202012/31/2021sample between June 1 and Sept 30
DIST-ADISTRIBUTION SYSTEMASTAGE 2 DBP4  Quarterly04/01/201203/31/2013Sample in Jan, April, July & Oct
DIST-ADISTRIBUTION SYSTEMASTAGE 2 DBP2  Quarterly04/01/201303/31/2014Sample in Jan, April, July & Oct
DIST-ADISTRIBUTION SYSTEMASTAGE 2 DBP4  Quarterly04/01/201403/31/2015Sample in April, July, Oct, and Jan
DIST-ADISTRIBUTION SYSTEMASTAGE 2 DBP2  Quarterly04/01/201506/30/2015Sample in April, July, Oct and January
EP-BEP FOR 108TH ASR WELLAARSENIC1  3 Years01/01/200812/31/2016
EP-BEP FOR 108TH ASR WELLAIOC1  3 Years01/01/200812/31/2016
EP-BEP FOR 108TH ASR WELLANITRITE1  3 Years01/01/200812/31/2016
EP-BEP FOR 108TH ASR WELLARAD - GROSS ALPHA1  Quarterly04/01/200909/30/2011
EP-BEP FOR 108TH ASR WELLARAD - RADIUM 226/2281  Quarterly04/01/200909/30/2011
EP-BEP FOR 108TH ASR WELLARAD - URANIUM1  9 Years01/01/201412/31/2022Schedule Reflects Monitoring Reduction Granted
EP-BEP FOR 108TH ASR WELLARAD - URANIUM1  Quarterly04/01/200910/01/2012
EP-BEP FOR 108TH ASR WELLASOC1  Yearly01/01/200912/31/2013
EP-BEP FOR 108TH ASR WELLAVOLATILE ORGANICS1  Yearly01/01/200912/31/2013

More information for this water system: SDWIS ID 4081
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