OHA Drinking Water Services
OR41
PWS ID: 00657 ---- PORTLAND WATER BUREAU

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
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST  9 Years01/01/2020 - 12/31/2028 1,043 1 done 07/11/2023
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notesYearly 01/01/2026 - 12/31/2026 312 50 incomplete06/12/2025
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 01/01/2026 - 03/31/2026 37 12 incomplete08/11/2025
EP-A  EP FOR BULL RUN ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,234 1 incomplete04/22/2025
EP-A  EP FOR BULL RUN IOC notes9 Years01/01/2020 - 12/31/2028 1,043 1 done 04/22/2025
EP-A  EP FOR BULL RUN NITRATE  Yearly 01/01/2026 - 12/31/2026 312 1 incomplete04/22/2025
EP-A  EP FOR BULL RUN NITRITE notes9 Years01/01/2020 - 12/31/2028 1,043 1 done 04/22/2025
EP-A  EP FOR BULL RUN RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,234 1 incomplete04/04/2017
EP-A  EP FOR BULL RUN RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,234 1 incomplete04/04/2017
EP-A  EP FOR BULL RUN RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,234 1 incomplete05/12/2020
EP-A  EP FOR BULL RUN SOC  3 Years 01/01/2026 - 12/31/2028 1,043 2 incomplete08/15/2023
EP-A  EP FOR BULL RUN VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 312 1 incomplete04/22/2025
EP-B GWPS  EP FOR GROUNDWATER PUMP STATION ARSENIC  9 Years01/01/2020 - 12/31/2028 1,043 1 done 07/22/2025
EP-B GWPS  EP FOR GROUNDWATER PUMP STATION IOC  9 Years01/01/2020 - 12/31/2028 1,043 1 done 07/22/2025
EP-B GWPS  EP FOR GROUNDWATER PUMP STATION NITRATE  Yearly 01/01/2026 - 12/31/2026 312 1 incomplete07/22/2025
EP-B GWPS  EP FOR GROUNDWATER PUMP STATION NITRITE  9 Years01/01/2020 - 12/31/2028 1,043 1 done 07/22/2025
EP-B GWPS  EP FOR GROUNDWATER PUMP STATION RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,234 1 incomplete02/22/2017
EP-B GWPS  EP FOR GROUNDWATER PUMP STATION RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,234 1 incomplete02/22/2017
EP-B GWPS  EP FOR GROUNDWATER PUMP STATION RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,138 1 incomplete02/22/2017
EP-B GWPS  EP FOR GROUNDWATER PUMP STATION SOC  3 Years 01/01/2026 - 12/31/2028 1,043 2 incomplete10/02/2023
EP-B GWPS  EP FOR GROUNDWATER PUMP STATION VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 1,043 1 incomplete07/22/2025

6  secs
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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBON  Quarterly04/01/200809/30/20141
DIST-A  DISTRIBUTION SYSTEMASBESTOS, DIST  3 Years01/01/200212/31/20081
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200203/31/20082Schedule Reflects Monitoring Reduction Granted
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly04/01/200806/30/20101
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly07/01/201003/31/20122
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months01/01/200212/31/2023100Schedule Reflects PWB Joint Monitoring Plan
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly01/01/201412/31/202112Sample in Feb, May, Aug & Nov
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly04/01/201203/30/201312Sample in Feb, May, Aug & Nov
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly04/01/201312/31/20136Sample in Feb, May, Aug & Nov
EP-A  EP FOR BULL RUNARSENIC  Yearly01/01/200212/31/20071
EP-A  EP FOR BULL RUNDI(2-ETHYLHEXYL) PHTHALATE   Quarterly01/01/200712/31/20071Min 4 Qtrs
EP-A  EP FOR BULL RUNHAA5 & TTHM  Quarterly04/01/200804/01/20081Schedule Reflects Monitoring Reduction Granted
EP-A  EP FOR BULL RUNSOC  3 Years01/01/200212/31/200722 Consec. QT Samples
EP-A  EP FOR BULL RUNSOC  3 Years01/01/200812/31/20192
EP-B GWPS  EP FOR GROUNDWATER PUMP STATIONRAD - URANIUM  6 Years01/01/200812/31/20131
SRC-AA  BULL RUN RIVERCYANOTOXINS  2 Weeks07/15/201801/24/20191

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