OHA Drinking Water Services
PWS ID: 95363 ---- USFWS TUALATIN RIVER NATL WLR
Excel Spreadsheet

MCL = 10 mg/L; MCL exceedances are indicated with red text.
ND = Not detected at the minimum reporting level.
Nitrate Samples
Sample ID Sample
Date		 Date
Received		 Analyte Name Source Name Source
ID		 Result
(mg/L)		 Comments
2278013-03-I 10/05/2022 10/11/2022 NITRATE EP FOR WELL EP-AND
130001502-I 10/27/2021 11/08/2021 NITRATE EP FOR WELL EP-AND
103201501-I 02/01/2021 02/08/2021 NITRATE EP FOR WELL EP-AND
931702602-I 11/13/2019 01/31/2020 NITRATE EP FOR WELL EP-AND
832302602-I 11/19/2018 12/21/2018 NITRATE EP FOR WELL EP-A0.162
731000812-I 11/06/2017 07/17/2018 NITRATE EP FOR WELL EP-AND
731000814-I 11/06/2017 07/17/2018 NITRATE EP FOR WELL EP-AND
603401802-I 02/03/2016 12/23/2016 NITRATE EP FOR WELL EP-AND
504201101-I 02/11/2015 03/04/2015 NITRATE EP FOR WELL EP-AND
334402201-I 12/10/2013 12/16/2013 NITRATE EP FOR WELL EP-AND
234601402-I 12/11/2012 12/12/2012 NITRATE EP FOR WELL EP-AND
133300807-I 11/29/2011 12/19/2011 NITRATE EP FOR WELL EP-AND
1005626-I 02/25/2010 03/08/2010 NITRATE EP FOR WELL EP-AND
0824929-I 09/05/2008 10/06/2008 NITRATE EP FOR WELL EP-AND
 

Archived Nitrate Samples
Sample ID Sample
Date		 Date
Received		 Analyte Name Source Name Source
ID		 Result
No archived results found.
 



For further information on this public water system, click on the area of interest below:
System Info :: Report for Lenders :: Alerts :: Violations :: Compliance & Enforcement :: Contacts & Advisories :: Site Visits :: Public Notice
Coliform Summary :: Coliform Results :: Sampling Schedule for Coliform :: Groundwater/GWUDI Source Details :: Plan Review :: Annual Fee
Chemical Group Summary :: Latest Chemical Results :: Entry Point Detects :: Single Analyte Results 
Chemical Schedule Summary :: Chemical Schedule Details
Lead & Copper :: Corrosion Control (LCR) :: Nitrate :: Arsenic :: Radionuclides :: GWR 4-Log :: LT2 :: Cyanotoxins :: PFAS
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 5032
Information by county:
Inventory :: Surface Water Systems :: Water System Surveys :: Outstanding Performers :: Plan Reviews :: System Scores :: Exceedances
Alerts :: Violations :: Compliance & Enforcement :: Significant Deficiencies :: Cross Connection ASRs :: Treatment Plant Inspections :: Fluoride
Water Advisories :: Contact Reports :: Cyanotoxins :: PFAS :: Post-wildfire VOCs :: Public Notices
Inventory List for all Oregon Drinking Water Systems in Excel or printable screen format
Lab Help: Tools for Laboratories :: Staff/Partner Login
Introduction :: Data Search Options :: Water System Search :: DWS Home