OHA Drinking Water Services
OR41
PWS ID: 00295 ---- BIG SPRUCE MHP LLC

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  6 Months 01/01/2026 - 06/30/2026 72 5 incomplete09/30/2025
DIST-A  Distribution System STAGE 2 DBP notes3 Years01/01/2028 - 12/31/2028   1 07/23/2025
  Seasonal sampling period:   07/01   thru   07/31
EP-A  EP FOR WELL #4 ARSENIC notes9 Years 01/01/2023 - 12/31/2031 2,082 1 incomplete10/02/2019
EP-A  EP FOR WELL #4 IOC notes9 Years 01/01/2020 - 12/31/2028 987 1 incomplete10/02/2019
EP-A  EP FOR WELL #4 NITRATE  Yearly01/01/2026 - 12/31/2026 256 1 done 01/07/2026
EP-A  EP FOR WELL #4 NITRITE notes9 Years 01/01/2020 - 12/31/2028 987 1 incomplete11/06/2019
EP-A  EP FOR WELL #4 PFAS notes6 Months 01/01/2026 - 06/30/2026 72 1 incomplete12/17/2025
  Initial monitoring - 2 samples only
EP-A  EP FOR WELL #4 RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,178 1 incomplete04/22/2025
EP-A  EP FOR WELL #4 RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,178 1 incomplete04/22/2025
EP-A  EP FOR WELL #4 RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,178 1 incomplete04/22/2025
EP-A  EP FOR WELL #4 SOC MINUS SOCR CHEMSnotes9 Years 01/01/2026 - 12/31/2034 3,178 1 incomplete04/06/2022
EP-A  EP FOR WELL #4 SOCR  3 Years 01/01/2026 - 12/31/2028 987 1 incomplete04/22/2025
EP-A  EP FOR WELL #4 VOLATILE ORGANICS  3 Years 01/01/2026 - 12/31/2028 987 1 incomplete04/22/2025

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