OHA Drinking Water Services
OR41
PWS ID: 00528 ---- MILWAUKIE, CITY OF

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
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2025 - 12/31/2025   30incomplete09/24/2022
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2025 - 12/31/2025 329 2 incomplete10/21/2024
 Seasonal sampling period:  10/01  thru  12/31
EP-A  EP FOR WELLS #2, #3, #5TRICHLOROETHYLENE  Yearly01/01/2025 - 12/31/2025 329 1 incomplete 10/03/2023
EP-A  EP FOR WELLS #2, #3, #5TETRACHLOROETHYLENE  Yearly01/01/2025 - 12/31/2025 329 1 incomplete 10/03/2023
EP-A  EP FOR WELLS #2, #3, #5CIS-1,2-DICHLOROETHYLENE  Yearly01/01/2025 - 12/31/2025 329 1 incomplete 10/03/2023
EP-A  EP FOR WELLS #2, #3, #5 ARSENIC notes9 Years01/01/2017 - 12/31/2025 329 1 done 10/25/2022
EP-A  EP FOR WELLS #2, #3, #5 IOC notes9 Years01/01/2020 - 12/31/2028 1,425 1 done 10/25/2022
EP-A  EP FOR WELLS #2, #3, #5 NITRATE  Yearly 01/01/2025 - 12/31/2025 329 1 incomplete11/26/2024
EP-A  EP FOR WELLS #2, #3, #5 NITRITE notes9 Years01/01/2020 - 12/31/2028 1,425 1 done 10/25/2022
EP-A  EP FOR WELLS #2, #3, #5 RAD - GROSS ALPHA  9 Years01/01/2023 - 12/31/2031 2,520 1 done 05/30/2023
EP-A  EP FOR WELLS #2, #3, #5 RAD - RADIUM 226/228 9 Years01/01/2023 - 12/31/2031 2,520 1 done 05/30/2023
EP-A  EP FOR WELLS #2, #3, #5 RAD - URANIUM  9 Years01/01/2023 - 12/31/2031 2,520 1 done 05/30/2023
EP-A  EP FOR WELLS #2, #3, #5 SOC notes3 Years 01/01/2023 - 12/31/2025 329 2 incomplete12/07/2022
EP-A  EP FOR WELLS #2, #3, #5 VOLATILE ORGANICS  3 Years01/01/2023 - 12/31/2025 329 1 done 10/03/2023
EP-B  EP FOR WELLS #4 AND #7 ARSENIC notes9 Years 01/01/2017 - 12/31/2025 329 1 incomplete05/27/2015
EP-B  EP FOR WELLS #4 AND #7 IOC notes9 Years 01/01/2020 - 12/31/2028 1,425 1 incomplete05/27/2015
EP-B  EP FOR WELLS #4 AND #7 NITRATE  Yearly 01/01/2025 - 12/31/2025 329 1 incomplete11/26/2024
EP-B  EP FOR WELLS #4 AND #7 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,425 1 incomplete05/27/2015
EP-B  EP FOR WELLS #4 AND #7 RAD - GROSS ALPHA  9 Years 01/01/2017 - 12/31/2025 329 1 incomplete06/14/2016
EP-B  EP FOR WELLS #4 AND #7 RAD - RADIUM 226/228 9 Years 01/01/2017 - 12/31/2025 329 1 incomplete06/14/2016
EP-B  EP FOR WELLS #4 AND #7 RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,520 1 incomplete06/14/2016
EP-B  EP FOR WELLS #4 AND #7 SOC notes3 Years 01/01/2023 - 12/31/2025 329 2 incomplete04/20/2020
EP-B  EP FOR WELLS #4 AND #7 VOLATILE ORGANICS  3 Years 01/01/2023 - 12/31/2025 329 1 incomplete10/26/2020
EP-C  EP FOR WELL #6 ARSENIC notes9 Years 01/01/2017 - 12/31/2025 329 1 incomplete05/27/2015
EP-C  EP FOR WELL #6 IOC notes9 Years 01/01/2020 - 12/31/2028 1,425 1 incomplete05/27/2015
EP-C  EP FOR WELL #6 NITRATE  Yearly 01/01/2025 - 12/31/2025 329 1 incomplete11/26/2024
EP-C  EP FOR WELL #6 NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,425 1 incomplete05/27/2015
EP-C  EP FOR WELL #6 RAD - GROSS ALPHA  9 Years 01/01/2017 - 12/31/2025 329 1 incomplete06/14/2016
EP-C  EP FOR WELL #6 RAD - RADIUM 226/228 9 Years 01/01/2023 - 12/31/2031 2,520 1 incomplete06/14/2016
EP-C  EP FOR WELL #6 RAD - URANIUM  9 Years 01/01/2023 - 12/31/2031 2,520 1 incomplete06/14/2016
EP-C  EP FOR WELL #6 SOC notes3 Years 01/01/2023 - 12/31/2025 329 2 incomplete04/20/2020
EP-C  EP FOR WELL #6 VOLATILE ORGANICS  3 Years 01/01/2023 - 12/31/2025 329 1 incomplete09/23/2020

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Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200409/30/20045Schedule Reflects Monitoring Reduction Granted
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly10/01/200412/31/20082Schedule reflects monitoring reduction granted
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200909/30/20131Schedule Reflects Monitoring Reduction Granted
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly01/01/201512/31/20154Sample During Peak Historical Month and Every 90 days Before/After
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly01/01/201612/31/20192Sample in February, May, August and November
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly10/01/201312/31/20144Sample During Peak Historical Month and Every 90 days Before/After
EP-A  EP FOR WELLS #2, #3, #5ARSENIC  3 Years01/01/200212/31/20071
EP-A  EP FOR WELLS #2, #3, #5CIS-1,2-DICHLOROETHYLENE   Quarterly07/01/202206/30/20231
EP-A  EP FOR WELLS #2, #3, #5RAD - GROSS ALPHA  9 Years01/01/200803/31/20221
EP-A  EP FOR WELLS #2, #3, #5RAD - GROSS ALPHA  Quarterly07/01/202212/31/20221
EP-A  EP FOR WELLS #2, #3, #5RAD - RADIUM 226/228  9 Years01/01/200803/31/20221
EP-A  EP FOR WELLS #2, #3, #5RAD - RADIUM 226/228  Quarterly07/01/202212/31/20221
EP-A  EP FOR WELLS #2, #3, #5RAD - URANIUM  6 Years01/01/200812/31/20131
EP-A  EP FOR WELLS #2, #3, #5RAD - URANIUM  9 Years01/01/201403/31/20221
EP-A  EP FOR WELLS #2, #3, #5RAD - URANIUM  Quarterly07/01/202212/31/20221
EP-A  EP FOR WELLS #2, #3, #5TETRACHLOROETHYLENE   Quarterly07/01/202206/30/20231
EP-A  EP FOR WELLS #2, #3, #5TETRACHLOROETHYLENE   Quarterly10/01/202003/31/20211
EP-A  EP FOR WELLS #2, #3, #5TRICHLOROETHYLENE   Quarterly07/01/202206/30/20231
EP-A  EP FOR WELLS #2, #3, #5TRICHLOROETHYLENE   Quarterly10/01/202003/31/20211
EP-B  EP FOR WELLS #4 AND #7ARSENIC  3 Years01/01/200212/31/20071
EP-B  EP FOR WELLS #4 AND #7RAD - URANIUM  6 Years01/01/200812/31/20131
EP-C  EP FOR WELL #6ARSENIC  3 Years01/01/200203/01/20071
EP-C  EP FOR WELL #6RAD - RADIUM 226/228  6 Years01/01/200812/31/20131
EP-C  EP FOR WELL #6RAD - URANIUM  6 Years01/01/200812/31/20131
EP-D  EP FOR WELL #8ARSENIC  3 Years01/01/200212/31/20041Well offline 3/17/05. Planning to drill new well on same site. PF 5/06
EP-D  EP FOR WELL #8ARSENIC  3 Years01/01/200811/12/20141
EP-D  EP FOR WELL #8IOC  3 Years01/01/200812/31/20131
EP-D  EP FOR WELL #8IOC  9 Years01/01/200212/31/20041Schedule Reflects Monitoring Reduction Granted. Well offline 3/17/05. Planning to drill new well on same site. PF 5/06
EP-D  EP FOR WELL #8IOC  9 Years01/01/201411/12/20141Schedule Reflects Monitoring Reduction Granted
EP-D  EP FOR WELL #8NITRATE  Yearly01/01/200312/31/20041Well offline 3/17/05. Planning to drill new well on same site. PF 5/06
EP-D  EP FOR WELL #8NITRATE  Yearly01/01/200911/12/20141
EP-D  EP FOR WELL #8NITRITE  9 Years01/01/200211/12/20141Schedule Reflects Monitoring Reduction Granted.
EP-D  EP FOR WELL #8RAD - GROSS ALPHA  9 Years01/01/200811/12/20141
EP-D  EP FOR WELL #8RAD - RADIUM 226/228  9 Years01/01/200811/12/20141
EP-D  EP FOR WELL #8RAD - URANIUM  6 Years01/01/200811/12/20141
EP-D  EP FOR WELL #8SOC  3 Years01/01/200212/31/200422 Consec. QT Samples Well offline 3/17/05. Planning to drill new well on same site. PF 5/06
EP-D  EP FOR WELL #8SOC  3 Years01/01/200811/12/20142
EP-D  EP FOR WELL #8VOLATILE ORGANICS  3 Years01/01/200212/31/20041Well offline 3/17/05. Planning to drill new well on same site. PF 5/06
EP-D  EP FOR WELL #8VOLATILE ORGANICS  9 Years01/01/201411/12/20141Schedule Reflects Monitoring Reduction Granted
EP-D  EP FOR WELL #8VOLATILE ORGANICS  Quarterly01/01/200909/30/20091Schedule Reflects Monitoring Reduction Granted. JN 11/18/2009
EP-D  EP FOR WELL #8VOLATILE ORGANICS  Yearly01/01/201012/31/20131

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