OHA Drinking Water Services
OR41
PWS ID: 00202 ---- COLTON WATER DISTRICT

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 CARBONnotesQuarterly04/01/2026 - 06/30/2026 79 1 incomplete 11/17/2025
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 994 1 incomplete05/12/2015
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2028 - 12/31/2028   10 09/04/2025
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 04/01/2026 - 06/30/2026 79 1 incomplete11/17/2025
EP-A  EP FOR JACKSON CREEK ARSENIC  9 Years 01/01/2020 - 12/31/2028 994 1 incomplete12/17/2019
EP-A  EP FOR JACKSON CREEK IOC notes9 Years 01/01/2020 - 12/31/2028 994 1 incomplete12/17/2019
EP-A  EP FOR JACKSON CREEK NITRATE  Yearly 01/01/2026 - 12/31/2026 263 1 incomplete11/17/2025
EP-A  EP FOR JACKSON CREEK NITRITE notes9 Years 01/01/2020 - 12/31/2028 994 1 incomplete12/17/2019
EP-A  EP FOR JACKSON CREEK PFAS notesQuarterly 04/01/2026 - 06/30/2026 79 1 incomplete
  Initial monitoring - 4 quarters only
EP-A  EP FOR JACKSON CREEK RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,185 1 incomplete08/26/2025
EP-A  EP FOR JACKSON CREEK RAD - RADIUM 226/228notes9 Years 01/01/2026 - 12/31/2034 3,185 1 incomplete08/26/2025
EP-A  EP FOR JACKSON CREEK RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,185 1 incomplete08/26/2025
EP-A  EP FOR JACKSON CREEK SOC  3 Years 01/01/2026 - 12/31/2028 994 1 incomplete08/26/2025
EP-A  EP FOR JACKSON CREEK VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 263 1 incomplete08/26/2025

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