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 02/01/2025 - 02/28/2025 26 1 incomplete11/05/2024
DIST-A  Distribution System ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 1,428 1 incomplete09/24/2019
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   20 08/16/2023
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  Distribution System STAGE 2 DBP notesYearly 01/01/2025 - 12/31/2025 332 2 incomplete07/17/2024
 Seasonal sampling period:  07/01  thru  07/31
EP-A  EP FOR SOUTH UMPQUA RIVER ARSENIC  9 Years 01/01/2020 - 12/31/2028 1,428 1 incomplete09/24/2019
EP-A  EP FOR SOUTH UMPQUA RIVER IOC notes9 Years 01/01/2020 - 12/31/2028 1,428 1 incomplete09/24/2019
EP-A  EP FOR SOUTH UMPQUA RIVER NITRATE  Yearly 01/01/2025 - 12/31/2025 332 1 incomplete12/05/2024
EP-A  EP FOR SOUTH UMPQUA RIVER NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,428 1 incomplete09/24/2019
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - GROSS ALPHA  9 Years 01/01/2017 - 12/31/2025 332 1 incomplete12/13/2016
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - RADIUM 226/228 9 Years 01/01/2017 - 12/31/2025 332 1 incomplete12/13/2016
EP-A  EP FOR SOUTH UMPQUA RIVER RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,523 1 incomplete06/23/2022
EP-A  EP FOR SOUTH UMPQUA RIVER SOC notes3 Years 01/01/2023 - 12/31/2025 332 2 incomplete10/17/2022
EP-A  EP FOR SOUTH UMPQUA RIVER VOLATILE ORGANICS  Yearly 01/01/2025 - 12/31/2025 332 1 incomplete11/12/2024
SRC-AA  SOUTH UMPQUA RIVER CYANOTOXINS  2 Weeks-- -- -- -- --10/28/2024
 Seasonal sampling period:  05/01  thru  10/31
WTP-A  TP FOR SOUTH UMPQUA RIVERTOTAL ORGANIC CARBONnotesMonthly02/01/2025 - 02/28/2025 26 1 incomplete 11/05/2024

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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 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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