OHA Drinking Water Services
OR41
PWS ID: 00717 ---- GREEN AREA WATER & SANITARY AUTHORITY

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
CH-A  COMMON HEADER FOR WTP-A TOC & ALKALINITY notesMonthly 04/01/2026 - 04/30/2026 8 1 incomplete03/03/2026
DIST-A  Distribution System ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 984 1 incomplete09/24/2019
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   20incomplete08/16/2023
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  Distribution System STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 253 2 incomplete07/10/2025
  Seasonal sampling period:   07/01   thru   07/31
EP-A  EP FOR SOUTH UMPQUA RIVER ARSENIC  9 Years 01/01/2020 - 12/31/2028 984 1 incomplete09/24/2019
EP-A  EP FOR SOUTH UMPQUA RIVER IOC notes9 Years 01/01/2020 - 12/31/2028 984 1 incomplete09/24/2019
EP-A  EP FOR SOUTH UMPQUA RIVER NITRATE  Yearly 01/01/2026 - 12/31/2026 253 1 incomplete11/10/2025
EP-A  EP FOR SOUTH UMPQUA RIVER NITRITE notes9 Years 01/01/2020 - 12/31/2028 984 1 incomplete09/24/2019
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,175 1 incomplete11/10/2025
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,175 1 incomplete11/10/2025
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,079 1 incomplete06/23/2022
EP-A  EP FOR SOUTH UMPQUA RIVER SOC notes3 Years 01/01/2026 - 12/31/2028 984 2 incomplete12/10/2025
EP-A  EP FOR SOUTH UMPQUA RIVER VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 253 1 incomplete11/10/2025
SRC-AA  SOUTH UMPQUA RIVER CYANOTOXINS  2 Weeks 04/19/2026 - 05/02/2026 10 1 incomplete08/15/2022
  Seasonal sampling period:   05/01   thru   10/31
WTP-A  TP FOR SOUTH UMPQUA RIVERTOTAL ORGANIC CARBONnotesMonthly04/01/2026 - 04/30/2026 8 1 incomplete 03/03/2026

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