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 9 1 incomplete03/03/2026
DIST-A  Distribution System ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 985 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 254 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 985 1 incomplete09/24/2019
EP-A  EP FOR SOUTH UMPQUA RIVER IOC notes9 Years 01/01/2020 - 12/31/2028 985 1 incomplete09/24/2019
EP-A  EP FOR SOUTH UMPQUA RIVER NITRATE  Yearly 01/01/2026 - 12/31/2026 254 1 incomplete11/10/2025
EP-A  EP FOR SOUTH UMPQUA RIVER NITRITE notes9 Years 01/01/2020 - 12/31/2028 985 1 incomplete09/24/2019
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,176 1 incomplete11/10/2025
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,176 1 incomplete11/10/2025
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,080 1 incomplete06/23/2022
EP-A  EP FOR SOUTH UMPQUA RIVER SOC notes3 Years 01/01/2026 - 12/31/2028 985 2 incomplete12/10/2025
EP-A  EP FOR SOUTH UMPQUA RIVER VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 254 1 incomplete11/10/2025
SRC-AA  SOUTH UMPQUA RIVER CYANOTOXINS  2 Weeks 04/19/2026 - 05/02/2026 11 1 incomplete10/27/2025
  Seasonal sampling period:   05/01   thru   10/31
WTP-A  TP FOR SOUTH UMPQUA RIVERTOTAL ORGANIC CARBONnotesMonthly04/01/2026 - 04/30/2026 9 1 incomplete 03/03/2026

6  secs
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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  Distribution SystemHAA5 & TTHM  Quarterly01/01/200412/31/20051Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  Distribution SystemHAA5 & TTHM  Yearly01/01/200609/30/20131Sample between June 1 and Sept. 30.
DIST-A  Distribution SystemSTAGE 2 DBP  Quarterly10/01/201307/31/20222Sample in Oct, Jan, Apr, and July
EP-A  EP FOR SOUTH UMPQUA RIVERARSENIC  Yearly01/01/200212/31/20081
EP-A  EP FOR SOUTH UMPQUA RIVERDI(2-ETHYLHEXYL) PHTHALATE   Quarterly10/01/201009/30/20111
EP-A  EP FOR SOUTH UMPQUA RIVERDI(2-ETHYLHEXYL) PHTHALATE   Yearly01/01/201212/31/20131
EP-A  EP FOR SOUTH UMPQUA RIVERP-DICHLOROBENZENE   Quarterly01/01/201509/30/20151
EP-A  EP FOR SOUTH UMPQUA RIVERPFAS  Quarterly01/01/202312/31/20241
EP-A  EP FOR SOUTH UMPQUA RIVERRAD - URANIUM  6 Years01/01/200812/31/20131
EP-A  EP FOR SOUTH UMPQUA RIVERSOC  3 Years01/01/200212/31/20132Does not include 2039. 2 QT samples required.
EP-A  EP FOR SOUTH UMPQUA RIVERVOLATILE ORGANICS  Yearly01/01/200212/31/20151

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