OHA Drinking Water Services
OR41
PWS ID: 00323 ---- GLENDALE, 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  Quarterly 04/01/2026 - 06/30/2026 66 1 incomplete02/03/2026
DIST-A  Distribution System ASBESTOS, DIST  9 Years01/01/2020 - 12/31/2028 981 1 done 08/15/2023
DIST-A  Distribution System DBP2 HAA5 ONLY notesYearly 01/01/2026 - 12/31/2026 250 1 incomplete08/05/2025
  Seasonal sampling period:   08/01   thru   08/31
DIST-A  Distribution System DBP2 TTHM ONLY notesYearly 01/01/2026 - 12/31/2026 250 1 incomplete08/05/2025
  Seasonal sampling period:   08/01   thru   08/31
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2026 - 12/31/2026   10incomplete07/10/2023
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR CREEKSDI(2-ETHYLHEXYL) PHTHALATE  Yearly01/01/2026 - 12/31/2026 250 1 incomplete 06/03/2025
EP-A  EP FOR CREEKS ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,172 1 incomplete03/04/2025
EP-A  EP FOR CREEKS IOC notes9 Years 01/01/2020 - 12/31/2028 981 1 incomplete04/02/2019
EP-A  EP FOR CREEKS NITRATE  Yearly 01/01/2026 - 12/31/2026 250 1 incomplete08/05/2025
EP-A  EP FOR CREEKS NITRITE notes9 Years 01/01/2020 - 12/31/2028 981 1 incomplete08/06/2019
EP-A  EP FOR CREEKS PFAS notesQuarterly 04/01/2026 - 06/30/2026 66 1 incomplete
  Initial monitoring - 4 quarters only
EP-A  EP FOR CREEKS RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,172 1 incomplete08/01/2023
EP-A  EP FOR CREEKS RAD - RADIUM 226/228notes9 Years 01/01/2026 - 12/31/2034 3,172 1 incomplete08/01/2023
EP-A  EP FOR CREEKS RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,172 1 incomplete08/01/2023
EP-A  EP FOR CREEKS SOC  3 Years 01/01/2026 - 12/31/2028 981 1 incomplete04/01/2025
EP-A  EP FOR CREEKS VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 250 1 incomplete04/01/2025
WTP-A  TP FOR CREEKSTOTAL ORGANIC CARBON Quarterly04/01/2026 - 06/30/2026 66 1 incomplete 02/03/2026

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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  Monthly01/01/200412/31/20051Raw and filtered TOC and alkalinity
DIST-A  Distribution SystemDBP2 HAA5 ONLY  Quarterly10/01/201312/31/20161Sample in Nov, Feb, May, and Aug at SM-1
DIST-A  Distribution SystemDBP2 TTHM ONLY  Quarterly10/01/201312/31/20161Sample in Nov, Feb, May, and Aug at S1-1 STAGE 1
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.
EP-A  EP FOR CREEKSARSENIC  Yearly01/01/200212/31/20161
EP-A  EP FOR CREEKSDI(2-ETHYLHEXYL) PHTHALATE   Quarterly07/01/201006/30/20111Monitor quarterly for one year as a result of detect on 08/24/10.
SRC-AC  COW CREEKCYANOTOXINS  2 Weeks07/15/201801/24/20191
WTP-A  TP FOR CREEKSTOTAL ORGANIC CARBON  Monthly01/01/200412/31/20051Post Filtration TOC

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