OHA Drinking Water Services
OR41
PWS ID: 94718 ---- CHEMICAL WASTE MGT OF NW INC

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 Years01/01/2028 - 12/31/2028   5 07/15/2025
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  Distribution System STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 328 2 incomplete
 Seasonal sampling period:  06/01  thru  09/30
EP-A  EP for WELL ARSENIC notes9 Years01/01/2020 - 12/31/2028 1,059 1 done 04/06/2022
EP-A  EP for WELL IOC notes9 Years01/01/2020 - 12/31/2028 1,059 1 done 04/06/2022
EP-A  EP for WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 328 1 incomplete02/24/2025
EP-A  EP for WELL NITRITE notes9 Years01/01/2020 - 12/31/2028 1,059 1 done 04/06/2022
EP-A  EP for WELL SOC  3 Years 01/01/2026 - 12/31/2028 1,059 1 incomplete08/11/2025
EP-A  EP for WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,059 1 incomplete07/15/2025

5  secs
Show Expired



More information for this water system: SDWIS ID 2852

Information for all water systems:

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