OHA Drinking Water Services
OR41
PWS ID: 00187 ---- CLACKAMAS RIVER WATER
System Information     Schedule Counts
Status:  Active
System Type:  Community
Population Served:  29,918
 Active:  14
Inactive:  0
Expired:  10  Show Expired

Routine Sampling Schedules For Chemicals
Facility
ID
Name Status Test Group Samples
Required
   Sampling
Interval
Start End    Notes
CH-A COMMON HEADER FOR WTP-AATOTAL ORGANIC CARBON1  Monthly01/01/2002OpenRaw Water TOC Only Required for Reduction in DBP Monitoring
DIST-A DISTRIBUTION SYSTEMALEAD & COPPER30  3 Years01/01/2023OpenCollect samples between June1st and Sept 30th
DIST-A DISTRIBUTION SYSTEMASTAGE 2 DBP4  Quarterly01/01/2021OpenSample in Jan, Apr, July, and Oct at 2DBP-02,-03,-04 and -05
EP-A EP FOR WTPAARSENIC1  9 Years01/01/2005OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR WTPAIOC1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR WTPANITRATE1  Yearly01/01/2002Open
EP-A EP FOR WTPANITRITE1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR WTPAPFAS1  Quarterly01/01/2023OpenInitial monitoring - 4 quarters only
EP-A EP FOR WTPARAD - GROSS ALPHA1  9 Years01/01/2020Open
EP-A EP FOR WTPARAD - RADIUM 226/2281  9 Years01/01/2008Open
EP-A EP FOR WTPARAD - URANIUM1  9 Years01/01/2008Open
EP-A EP FOR WTPASOC2  3 Years01/01/2002OpenOne sample in two different calendar quarters within the same year, once every three years.
EP-A EP FOR WTPAVOLATILE ORGANICS1  Yearly01/01/2002Open
SRC-AA CLACKAMAS RIVERACYANOTOXINS1  2 Weeks07/15/2018Open