OHA Drinking Water Services
OR41
PWS ID: 90556 ---- TRIANGLE LAKE HIGH/ELEM SD 90

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 Years01/01/2027 - 12/31/2027   5 06/24/2024
  Seasonal sampling period:   06/01   thru   09/30
DIST-A  Distribution System STAGE 2 DBP notes3 Years01/01/2027 - 12/31/2027   1 06/24/2024
  Seasonal sampling period:   06/01   thru   06/30
EP-A  EP FOR SOUTH WELL ARSENIC  3 Years 01/01/2026 - 12/31/2028 970 1 incomplete11/30/2022
EP-A  EP FOR SOUTH WELL IOC notes9 Years 01/01/2020 - 12/31/2028 970 1 incomplete06/13/2019
EP-A  EP FOR SOUTH WELL NITRATE  Yearly 01/01/2026 - 12/31/2026 239 1 incomplete12/23/2024
EP-A  EP FOR SOUTH WELL NITRITE notes9 Years 01/01/2020 - 12/31/2028 970 1 incomplete06/13/2019
EP-A  EP FOR SOUTH WELL PFAS notes6 Months 01/01/2026 - 06/30/2026 55 1 incomplete
  Initial monitoring - 2 samples only
EP-A  EP FOR SOUTH WELL SOC  3 Years 01/01/2026 - 12/31/2028 970 1 incomplete11/30/2022
EP-A  EP FOR SOUTH WELL VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 970 1 incomplete11/30/2022

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Expired Schedules
Facility
ID
Analyte or Group    Sampling
Interval
Start End Samples
Required
   Notes
DIST-A  Distribution SystemHAA5 & TTHM  3 Years01/01/200512/31/20131Sample between June 1 and Sept. 30.
DIST-A  Distribution SystemHAA5 & TTHM  Yearly01/01/200412/31/20041Sample Between June 1st and Sept 30th Each Year
DIST-A  Distribution SystemLEAD & COPPER  3 Years01/01/200212/31/20045Sample Between June 1st and Sept 30th
DIST-A  Distribution SystemLEAD & COPPER  3 Years01/01/200812/31/20135Sample between June 1st and September 30th while school is in session.
DIST-A  Distribution SystemLEAD & COPPER  6 Months01/01/200512/31/200610
DIST-A  Distribution SystemLEAD & COPPER  6 Months01/01/201606/30/20185
DIST-A  Distribution SystemLEAD & COPPER  Yearly01/01/200712/31/20075Sample between June 1st and September 30th while school is in session.
DIST-A  Distribution SystemLEAD & COPPER  Yearly01/01/201412/31/20155Sample between June 1st and September 30th while school is in session.
DIST-A  Distribution SystemLEAD & COPPER  Yearly01/01/201912/31/20235Sample between June 1 and Sept 30
EP-A  EP FOR SOUTH WELLIOC  3 Years01/01/200212/31/20071
EP-A  EP FOR SOUTH WELLNITRITE  3 Years01/01/200212/31/20101

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