OHA Drinking Water Services
OR41
PWS ID: 95613 ---- HILLSBORO LANDFILL

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 notesYearly 01/01/2026 - 12/31/2026 332 5 incomplete08/06/2025
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 332 1 incomplete08/06/2025
 Seasonal sampling period:  08/01  thru  08/31
EP-A  EP FOR WELLS ARSENIC  3 Years 01/01/2026 - 12/31/2028 1,063 1 incomplete01/25/2024
EP-A  EP FOR WELLS IOC  3 Years 01/01/2026 - 12/31/2028 1,063 1 incomplete01/25/2024
EP-A  EP FOR WELLS NITRATE  Yearly 01/01/2026 - 12/31/2026 332 1 incomplete01/29/2025
EP-A  EP FOR WELLS NITRITE  3 Years 01/01/2026 - 12/31/2028 1,063 1 incomplete01/25/2024
EP-A  EP FOR WELLS SOC notes3 Years 01/01/2026 - 12/31/2028 1,063 1 incomplete01/29/2025
EP-A  EP FOR WELLS VOLATILE ORGANICS notes3 Years 01/01/2026 - 12/31/2028 1,063 1 incomplete01/29/2025

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More information for this water system: SDWIS ID 5496
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