OHA Drinking Water Services
OR41
PWS ID: 00493 ---- LYONS MEHAMA 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 CARBONnotesQuarterly07/01/2025 - 09/30/2025 75 1 incomplete 05/12/2025
DIST-A  Distribution System ASBESTOS, DIST notes9 Years01/01/2017 - 12/31/2025 167 1 done 08/17/2023
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2025 - 12/31/2025   10incomplete09/15/2021
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  Distribution System STAGE 2 DBP notesYearly 01/01/2025 - 12/31/2025 167 1 incomplete07/15/2024
 Seasonal sampling period:  07/01  thru  07/31
EP-A  EP for NORTH SANTIAM RIVER ARSENIC  9 Years 01/01/2020 - 12/31/2028 1,263 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER IOC notes9 Years 01/01/2020 - 12/31/2028 1,263 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER NITRATE  Yearly01/01/2025 - 12/31/2025 167 1 done 05/12/2025
EP-A  EP for NORTH SANTIAM RIVER NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,263 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER RAD - GROSS ALPHA  9 Years 01/01/2020 - 12/31/2028 1,263 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER RAD - RADIUM 226/228 9 Years 01/01/2020 - 12/31/2028 1,263 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER RAD - URANIUM  9 Years 01/01/2020 - 12/31/2028 1,263 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER SOC  3 Years01/01/2023 - 12/31/2025 167 1 done 02/11/2025
EP-A  EP for NORTH SANTIAM RIVER VOLATILE ORGANICS  Yearly01/01/2025 - 12/31/2025 167 1 done 05/12/2025
SRC-AA  NORTH SANTIAM RIVER CYANOTOXINS  2 Weeks 07/13/2025 - 07/26/2025 9 1 incomplete07/07/2025
 Seasonal sampling period:  05/01  thru  10/31

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More information for this water system: SDWIS ID 3967

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