OHA Drinking Water Services
OR41
PWS ID: 00534 ---- MOLALLA, 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-A TOC & ALKALINITY notesQuarterly04/01/2024 - 06/30/2024 53 1 incomplete02/13/2024
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years01/01/2020 - 12/31/2028 1,698 1 done 11/17/2020
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2024 - 12/31/2024   30incomplete07/26/2021
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly04/01/2024 - 06/30/2024 53 2 incomplete02/13/2024
EP-A  EP FOR MOLALLA RIVER ARSENIC notes9 Years01/01/2017 - 12/31/2025 602 1 done 05/16/2018
EP-A  EP FOR MOLALLA RIVER IOC notes9 Years01/01/2020 - 12/31/2028 1,698 1 incomplete02/13/2018
EP-A  EP FOR MOLALLA RIVER NITRATE  Yearly01/01/2024 - 12/31/2024 237 1 incomplete11/14/2023
EP-A  EP FOR MOLALLA RIVER NITRITE notes9 Years01/01/2020 - 12/31/2028 1,698 1 incomplete02/13/2018
EP-A  EP FOR MOLALLA RIVER RAD - GROSS ALPHA notes9 Years01/01/2017 - 12/31/2025 602 1 done 11/12/2019
EP-A  EP FOR MOLALLA RIVER RAD - RADIUM 226/228notes9 Years01/01/2017 - 12/31/2025 602 1 done 11/12/2019
EP-A  EP FOR MOLALLA RIVER RAD - URANIUM notes9 Years01/01/2017 - 12/31/2025 602 1 done 11/12/2019
EP-A  EP FOR MOLALLA RIVER SOC notes3 Years01/01/2023 - 12/31/2025 602 2 incomplete10/25/2022
EP-A  EP FOR MOLALLA RIVER VOLATILE ORGANICS  Yearly01/01/2024 - 12/31/2024 237 1 incomplete08/15/2023
WTP-A  TP FOR MOLALLA RIVERTOTAL ORGANIC CARBONnotesQuarterly04/01/2024 - 06/30/2024 53 1 incomplete 02/13/2024

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
CH-A  COMMON HEADER FOR WTP-ATOC & ALKALINITY  Monthly01/01/200412/31/20041Raw and filtered TOC and alkalinity
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200412/31/20041Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200509/30/20131Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200212/31/202120Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly01/01/201909/30/20202Sample in Nov, Feb, May, and August at 12424 Toliver Rd. & 921 Meadowlawn Pl.
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly10/01/201312/31/20182Sample in Nov, Feb, May, and August
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Yearly01/01/202112/31/20212Sample in August at 1424 Toliver Road (2DBP-01) and 921 Meadowlawn (2DBP-03)
WTP-A  TP FOR MOLALLA RIVERTOTAL ORGANIC CARBON  Monthly01/01/200412/31/20041Post Filtration TOC

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More information for this water system: SDWIS ID 3971
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