OHA Drinking Water Services
OR41
PWS ID: 00225 ---- CORVALLIS, CITY OF
System Information     Schedule Counts
Status:  Active
System Type:  Community
Population Served:  61,468
 Active:  26
Inactive:  0
Expired:  16  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-AATOC & ALKALINITY1  Quarterly01/01/2006Open
CH-B COMMON HEADER FOR WTP-BATOC & ALKALINITY1  Quarterly01/01/2006Open
DIST-A Distribution SystemALEAD & COPPER30  3 Years01/01/2002OpenSample Between June 1st and Sept 30th
DIST-A Distribution SystemASTAGE 2 DBP4  Quarterly10/01/2013OpenSample in Feb, May, Aug, Nov.
EP-A EP FOR TAYLOR WTPAARSENIC1  9 Years01/01/2011OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR TAYLOR WTPAIOC1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR TAYLOR WTPANITRATE1  Yearly01/01/2002Open
EP-A EP FOR TAYLOR WTPANITRITE1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR TAYLOR WTPAPFAS1  Quarterly01/01/2023OpenInitial monitoring - 4 quarters only
EP-A EP FOR TAYLOR WTPARAD - GROSS ALPHA1  9 Years01/01/2020Open
EP-A EP FOR TAYLOR WTPARAD - RADIUM 226/2281  9 Years01/01/2020Open
EP-A EP FOR TAYLOR WTPARAD - URANIUM1  9 Years01/01/2020Open
EP-A EP FOR TAYLOR WTPASOC2  3 Years01/01/2002Open2 Consec. QT Samples
EP-A EP FOR TAYLOR WTPAVOLATILE ORGANICS1  Yearly01/01/2002Open
EP-B EP FOR ROCK CREEK WTPAARSENIC1  9 Years01/01/2011OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR ROCK CREEK WTPAIOC1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR ROCK CREEK WTPANITRATE1  Yearly01/01/2002Open
EP-B EP FOR ROCK CREEK WTPANITRITE1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-B EP FOR ROCK CREEK WTPAPFAS1  Quarterly01/01/2023OpenInitial monitoring - 4 quarters only
EP-B EP FOR ROCK CREEK WTPARAD - GROSS ALPHA1  9 Years01/01/2020Open
EP-B EP FOR ROCK CREEK WTPARAD - RADIUM 226/2281  9 Years01/01/2020Open
EP-B EP FOR ROCK CREEK WTPARAD - URANIUM1  9 Years01/01/2020Open
EP-B EP FOR ROCK CREEK WTPASOC2  3 Years01/01/2002Open2 Consec. QT Samples
EP-B EP FOR ROCK CREEK WTPAVOLATILE ORGANICS1  Yearly01/01/2002Open
WTP-A TP FOR TAYLOR WTPATOTAL ORGANIC CARBON1  Quarterly01/01/2006Open
WTP-B TP FOR ROCK CREEK WTPATOTAL ORGANIC CARBON1  Quarterly01/01/2006Open