OHA Drinking Water Services
OR41
PWS ID: 94713 ---- COLUMBIA RIDGE LANDFILL/RECYCL
System Information     Schedule Counts
Status:  Active
System Type:  Non-transient Non-community
Population Served:  80
 Active:  9     Show Only Active
Inactive:  0
Expired:  2

Routine Sampling Schedules For Chemicals
Facility
ID
Name Status Test Group Samples
Required
   Sampling
Interval
Start End    Notes
DIST-A Distribution SystemALEAD & COPPER5  3 Years01/01/2002OpenSample Between June 1st and Sept 30th
EP-A EP FOR WELLFIELD (WELLS #1, #2, #6)AARSENIC1  9 Years01/01/2011Open
EP-A EP FOR WELLFIELD (WELLS #1, #2, #6)ADI(2-ETHYLHEXYL) PHTHALATE 1  Yearly01/01/2024Open
EP-A EP FOR WELLFIELD (WELLS #1, #2, #6)AIOC1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR WELLFIELD (WELLS #1, #2, #6)ANITRATE1  Yearly01/01/2002Open
EP-A EP FOR WELLFIELD (WELLS #1, #2, #6)ANITRITE1  9 Years01/01/2002OpenSchedule Reflects Monitoring Reduction Granted
EP-A EP FOR WELLFIELD (WELLS #1, #2, #6)APFAS1  6 Months01/01/2023OpenInitial monitoring - 2 samples only
EP-A EP FOR WELLFIELD (WELLS #1, #2, #6)ASOC1  3 Years01/01/2002Open
EP-A EP FOR WELLFIELD (WELLS #1, #2, #6)AVOLATILE ORGANICS1  3 Years01/01/2002Open
Expired Schedules
EP-AEP FOR WELLFIELD (WELLS #1, #2, #6)AARSENIC1  3 Years01/01/200212/31/2010
EP-AEP FOR WELLFIELD (WELLS #1, #2, #6)ADI(2-ETHYLHEXYL) PHTHALATE 1  Quarterly07/01/202206/30/2023