OHA Drinking Water Services
OR41
PWS ID: 00789 ---- SANDY, CITY OF

See also: Coliform Schedules  ::  LT2 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-ATOTAL ORGANIC CARBONnotesQuarterly04/01/2025 - 06/30/2025 47 1 incomplete 01/28/2025
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 1,327 1 incomplete11/26/2019
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2026 -   30future08/29/2022
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 04/01/2025 - 06/30/2025 47 4 incomplete03/11/2025
EP-A  EP FOR ALDER CREEK WTP (KEYSTONE/TRIDENT ARSENIC notes9 Years01/01/2017 - 12/31/2025 231 1 done 07/05/2022
EP-A  EP FOR ALDER CREEK WTP (KEYSTONE/TRIDENT IOC notes9 Years01/01/2020 - 12/31/2028 1,327 1 done 07/05/2022
EP-A  EP FOR ALDER CREEK WTP (KEYSTONE/TRIDENT NITRATE  Yearly01/01/2025 - 12/31/2025 231 1 done 01/28/2025
EP-A  EP FOR ALDER CREEK WTP (KEYSTONE/TRIDENT NITRITE notes9 Years01/01/2020 - 12/31/2028 1,327 1 done 07/05/2022
EP-A  EP FOR ALDER CREEK WTP (KEYSTONE/TRIDENT RAD - GROSS ALPHA notes9 Years01/01/2017 - 12/31/2025 231 1 done 05/02/2017
EP-A  EP FOR ALDER CREEK WTP (KEYSTONE/TRIDENT RAD - RADIUM 226/228notes9 Years01/01/2017 - 12/31/2025 231 1 done 05/02/2017
EP-A  EP FOR ALDER CREEK WTP (KEYSTONE/TRIDENT RAD - URANIUM notes9 Years01/01/2017 - 12/31/2025 231 1 done 05/02/2017
EP-A  EP FOR ALDER CREEK WTP (KEYSTONE/TRIDENT SOC notes3 Years 01/01/2023 - 12/31/2025 231 2 incomplete03/12/2025
EP-A  EP FOR ALDER CREEK WTP (KEYSTONE/TRIDENT VOLATILE ORGANICS  Yearly01/01/2025 - 12/31/2025 231 1 done 01/28/2025
EP-B  EP for BROWNELL SPRINGS ARSENIC notes9 Years01/01/2017 - 12/31/2025 231 1 done 08/01/2022
EP-B  EP for BROWNELL SPRINGS IOC notes9 Years01/01/2020 - 12/31/2028 1,327 1 done 08/01/2022
EP-B  EP for BROWNELL SPRINGS NITRATE  Yearly01/01/2025 - 12/31/2025 231 1 done 01/28/2025
EP-B  EP for BROWNELL SPRINGS NITRITE notes9 Years01/01/2020 - 12/31/2028 1,327 1 done 08/01/2022
EP-B  EP for BROWNELL SPRINGS RAD - GROSS ALPHA notes9 Years01/01/2017 - 12/31/2025 231 1 done 05/02/2017
EP-B  EP for BROWNELL SPRINGS RAD - RADIUM 226/228notes9 Years01/01/2023 - 12/31/2031 2,422 1 done 03/12/2025
EP-B  EP for BROWNELL SPRINGS RAD - URANIUM notes9 Years01/01/2017 - 12/31/2025 231 1 done 05/02/2017
EP-B  EP for BROWNELL SPRINGS SOC notes3 Years 01/01/2023 - 12/31/2025 231 2 incomplete03/12/2025
EP-B  EP for BROWNELL SPRINGS VOLATILE ORGANICS  3 Years01/01/2023 - 12/31/2025 231 1 done 03/12/2025

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