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 CARBONnotesQuarterly10/01/2024 - 12/31/2024 5 1 incomplete 06/25/2024
DIST-A  Distribution System ASBESTOS, DIST notes9 Years01/01/2017 - 12/31/2025 370 1 done 08/17/2023
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2024 - 12/31/2024   10incomplete09/15/2021
 Seasonal sampling period:  06/01  thru  09/30
DIST-A  Distribution System STAGE 2 DBP notesYearly01/01/2024 - 12/31/2024 5 1 done 07/15/2024
 Seasonal sampling period:  07/01  thru  07/31
EP-A  EP for NORTH SANTIAM RIVER ARSENIC  9 Years 01/01/2020 - 12/31/2028 1,466 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER IOC notes9 Years 01/01/2020 - 12/31/2028 1,466 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER NITRATE  Yearly01/01/2024 - 12/31/2024 5 1 done 06/16/2024
EP-A  EP for NORTH SANTIAM RIVER NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,466 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER RAD - GROSS ALPHA  9 Years 01/01/2020 - 12/31/2028 1,466 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER RAD - RADIUM 226/228 9 Years 01/01/2020 - 12/31/2028 1,466 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER RAD - URANIUM  9 Years 01/01/2020 - 12/31/2028 1,466 1 incomplete11/19/2019
EP-A  EP for NORTH SANTIAM RIVER SOC  3 Years 01/01/2023 - 12/31/2025 370 1 incomplete08/03/2022
EP-A  EP for NORTH SANTIAM RIVER VOLATILE ORGANICS  Yearly01/01/2024 - 12/31/2024 5 1 done 06/17/2024
SRC-AA  NORTH SANTIAM RIVER CYANOTOXINS  2 Weeks-- -- -- -- --10/21/2024
 Seasonal sampling period:  05/01  thru  10/31

7  secs
Show Only Active

Expired Schedules
Facility
ID		 Analyte or Group    Sampling
Interval		 Start End Samples
Required		    Notes
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBON  Monthly01/01/200412/31/20071Raw Water TOC Only Required for Reduction in DBP Monitoring
DIST-A  Distribution SystemHAA5 & TTHM  Quarterly01/01/200412/31/20061Schedule Reflects 1 RT Sample Per QT Per WTP. Monitoring reduction granted effective 01/01/2007 - BG
DIST-A  Distribution SystemHAA5 & TTHM  Yearly01/01/200709/30/20131Sample between June 1 and Sept. 30.
DIST-A  Distribution SystemLEAD & COPPER  6 Months01/01/200212/31/200220
DIST-A  Distribution SystemSTAGE 2 DBP  Quarterly10/01/201312/31/20151Sample During Peak Historical Month and Every 90 days Before/After
EP-A  EP for NORTH SANTIAM RIVERARSENIC  Yearly01/01/200212/31/20131
EP-A  EP for NORTH SANTIAM RIVERCYANOTOXINS  WK 06/30/201907/13/20191
EP-A  EP for NORTH SANTIAM RIVERCYANOTOXINS  WK 07/14/202408/30/20241
EP-A  EP for NORTH SANTIAM RIVERRAD - RADIUM 226/228  6 Years01/01/201412/31/20191
EP-A  EP for NORTH SANTIAM RIVERRAD - RADIUM 226/228  9 Years01/01/200812/31/20131
EP-A  EP for NORTH SANTIAM RIVERVOLATILE ORGANICS  3 Years01/01/201412/31/20161
EP-A  EP for NORTH SANTIAM RIVERVOLATILE ORGANICS  Yearly01/01/200212/31/20121
SRC-AA  NORTH SANTIAM RIVERCYANOTOXINS  2 Weeks07/14/201907/09/20241
SRC-AA  NORTH SANTIAM RIVERCYANOTOXINS  2 Weeks07/15/201806/28/20191
SRC-AA  NORTH SANTIAM RIVERCYANOTOXINS  WK 06/30/201907/13/20191
SRC-AA  NORTH SANTIAM RIVERCYANOTOXINS  WK 07/14/202409/06/20241

Show Only Active


More information for this water system: SDWIS ID 3967
System Info  ::  Report for Lenders  ::  Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Contacts & Advisories  ::  Site Visits  ::  Public Notice
Coliform Summary  ::  Coliform Results  ::  Coliform Schedules  ::  LT2  ::  GW/GWUDI Source Details  ::  Plan Review  ::  Annual Fee
Chemical Summary  ::  Chemical Results  ::  Chemical Schedules  ::  Chemical Schedule Summary  ::  Arsenic RAA  ::  Cyanotoxins  ::  PFAS
Lead & Copper  ::  DBP Sample Sites  ::  FANLs  ::  MRDL  ::  GWR 4-Log  ::  Turbidity  ::  SWTR  ::  LRAA  ::  DW Source Protection
New! Visit our new Drinking Water Source Protection page.
Information for all water systems:
Water System Inventory  ::  Water System Surveys  ::  Outstanding Performers  ::  Treatment Plant Inspections  ::  Treatment  ::  Plan Reviews
Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Deficiencies  ::  System Scores  ::  Exceedances  ::  Public Notices  ::  Service Lines
Water Advisories  ::  Contact Reports  ::  Cyanotoxins  ::  PFAS  ::  Post-wildfire VOCs  ::  Fluoride  ::  Certification List  ::  DW Source Protection
Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home  ::  DWS Rules
Need help? Email Drinking Water Services for assistance.Staff/Partner Login