OHA Drinking Water Services
OR41
PWS ID: 94713 ---- COLUMBIA RIDGE LANDFILL/RECYCL

See also: Coliform Schedules

Chemical Sampling Schedule Status
Facility
ID
Analyte or Group   Sampling
Interval
Monitoring Period Days
Until
End
Samples
Required
Samples
Received
Last
Sample
Date
Start End
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2025 - 12/31/2025   5incomplete08/09/2022
 Seasonal sampling period:  06/01  thru  09/30
EP-A  EP FOR WELLFIELD (WELLS #1, #2, #6)DI(2-ETHYLHEXYL) PHTHALATE  Yearly01/01/2025 - 12/31/2025 194 1 incomplete 04/24/2024
EP-A  EP FOR WELLFIELD (WELLS #1, #2, #6) ARSENIC  9 Years01/01/2020 - 12/31/2028 1,290 1 done 04/06/2022
EP-A  EP FOR WELLFIELD (WELLS #1, #2, #6) IOC notes9 Years01/01/2020 - 12/31/2028 1,290 1 done 04/06/2022
EP-A  EP FOR WELLFIELD (WELLS #1, #2, #6) NITRATE  Yearly 01/01/2025 - 12/31/2025 194 1 incomplete05/21/2024
EP-A  EP FOR WELLFIELD (WELLS #1, #2, #6) NITRITE notes9 Years01/01/2020 - 12/31/2028 1,290 1 done 04/06/2022
EP-A  EP FOR WELLFIELD (WELLS #1, #2, #6) SOC  3 Years 01/01/2023 - 12/31/2025 194 1 incomplete04/06/2022
EP-A  EP FOR WELLFIELD (WELLS #1, #2, #6) VOLATILE ORGANICS  3 Years 01/01/2023 - 12/31/2025 194 1 incomplete07/05/2022

14  secs
Show Expired



More information for this water system: SDWIS ID 2851

Information for all water systems:

Main menu:
Need help? Email Drinking Water Services for assistance.Staff/Partner Login