OHA Drinking Water Services
OR41
PWS ID: 00302 ---- SOUTH COAST WATER COMPANY

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 LEAD & COPPER notesYearly 01/01/2026 - 12/31/2026 347 5 incomplete09/23/2025
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  DISTRIBUTION SYSTEM STAGE 2 DBP notesYearly 01/01/2026 - 12/31/2026 347 1 incomplete05/13/2025
 Seasonal sampling period:  05/01  thru  05/31
EP-A  EP FOR WOAHINK LAKE ARSENIC notes9 Years 01/01/2026 - 12/31/2034 3,269 1 incomplete10/07/2025
EP-A  EP FOR WOAHINK LAKE IOC notes9 Years01/01/2020 - 12/31/2028 1,078 1 done 10/07/2025
EP-A  EP FOR WOAHINK LAKE NITRATE  Yearly 01/01/2026 - 12/31/2026 347 1 incomplete10/07/2025
EP-A  EP FOR WOAHINK LAKE NITRITE notes9 Years01/01/2020 - 12/31/2028 1,078 1 done 10/07/2025
EP-A  EP FOR WOAHINK LAKE RAD - GROSS ALPHA notes9 Years 01/01/2026 - 12/31/2034 3,269 1 incomplete05/26/2016
EP-A  EP FOR WOAHINK LAKE RAD - RADIUM 226/228notes9 Years 01/01/2026 - 12/31/2034 3,269 1 incomplete05/26/2016
EP-A  EP FOR WOAHINK LAKE RAD - URANIUM notes9 Years 01/01/2026 - 12/31/2034 3,269 1 incomplete05/26/2016
EP-A  EP FOR WOAHINK LAKE SOC  3 Years 01/01/2026 - 12/31/2028 1,078 1 incomplete10/07/2025
EP-A  EP FOR WOAHINK LAKE VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 347 1 incomplete10/07/2025

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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  Monthly01/01/200411/30/20081Raw Water TOC Only Required for Reduction in DBP Monitoring
DIST-A  DISTRIBUTION SYSTEMHAA5 & TTHM  Yearly01/01/200409/30/20131Sample between June 1 and Sept. 30.
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  3 Years01/01/200512/31/20185Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  6 Months07/01/201912/31/202010
DIST-A  DISTRIBUTION SYSTEMLEAD & COPPER  Yearly01/01/200212/31/20045Sample Between June 1st and Sept 30th
DIST-A  DISTRIBUTION SYSTEMSTAGE 2 DBP  Quarterly10/01/201309/30/20201Sample in Oct, Jan, Apr, and July
EP-A  EP FOR WOAHINK LAKEARSENIC  Yearly01/01/200212/31/20161
SRC-AA  SILTCOOS LAKECYANOTOXINS  2 Weeks07/15/201801/24/20191

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More information for this water system: SDWIS ID 3953
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