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 CARBONnotesQuarterly04/01/2025 - 06/30/2025 65 1 incomplete 10/15/2024
DIST-A  DISTRIBUTION SYSTEM ASBESTOS, DIST notes9 Years 01/01/2020 - 12/31/2028 1,345 1 incomplete05/12/2015
DIST-A  DISTRIBUTION SYSTEM LEAD & COPPER notes3 Years01/01/2025 - 12/31/2025   10incomplete09/27/2022
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesQuarterly 04/01/2025 - 06/30/2025 65 1 incomplete03/25/2025
EP-A  EP FOR JACKSON CREEK ARSENIC  9 Years 01/01/2020 - 12/31/2028 1,345 1 incomplete12/17/2019
EP-A  EP FOR JACKSON CREEK IOC notes9 Years 01/01/2020 - 12/31/2028 1,345 1 incomplete12/17/2019
EP-A  EP FOR JACKSON CREEK NITRATE  Yearly 01/01/2025 - 12/31/2025 249 1 incomplete11/19/2024
EP-A  EP FOR JACKSON CREEK NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,345 1 incomplete12/17/2019
EP-A  EP FOR JACKSON CREEK RAD - GROSS ALPHA notes9 Years01/01/2017 - 12/31/2025 249 1 done 02/21/2017
EP-A  EP FOR JACKSON CREEK RAD - RADIUM 226/228notes9 Years01/01/2017 - 12/31/2025 249 1 done 02/21/2017
EP-A  EP FOR JACKSON CREEK RAD - URANIUM notes9 Years01/01/2017 - 12/31/2025 249 1 done 02/21/2017
EP-A  EP FOR JACKSON CREEK SOC  3 Years 01/01/2023 - 12/31/2025 249 1 incomplete12/06/2022
EP-A  EP FOR JACKSON CREEK VOLATILE ORGANICS  Yearly 01/01/2025 - 12/31/2025 249 1 incomplete11/19/2024

15  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-ATOC & ALKALINITY  Monthly01/01/200412/31/20051Raw and filtered TOC and alkalinity
CH-A  COMMON HEADER FOR WTP-ATOC & ALKALINITY  Quarterly01/01/200601/01/20101Since it was determined the water system is a 2.0 plant in 2009, only Raw TOCs need monitoring.
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly01/01/200412/31/20051Schedule Reflects 1 RT Sample Per QT Per WTP
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Quarterly10/01/201109/30/20131Every 90 days: December, March, June, September
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200609/30/20111Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200212/31/200910Sample Between June 1st and Sept 30th
EP-A  EP FOR JACKSON CREEKARSENIC  Yearly01/01/200212/31/20071
WTP-A  TP FOR JACKSON CREEKTOTAL ORGANIC CARBON  Monthly01/01/200412/31/20051Post Filtration TOC

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More information for this water system: SDWIS ID 3943
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