OHA Drinking Water Services
OR41
PWS ID: 93950 ---- OPRD WEST MAYER STATE PARK
Chemical Results

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How to use this data table
  • Filter: Use the Select Analytes panel below to filter for specific analytes or groups. Note that only analytes for which there are data are listed. Use the dropdown menus in column headers and the Sample Dates box to filter results. Use the Search box to search across all columns. For example, you can enter a specific sample ID, analyte, or any other search criteria into the Search box.
  • Sort: Click column headings to sort ascending or descending. Sort by multiple columns by holding the Shift key while clicking on additional column headings. The arrow in the column heading will show in blue if the results are currently being sorted by that column.
  • Columns: Use the Columns button to select which columns to display in the table, including additional columns not shown in the default display. Drag column headings to rearrange their order.
  • DBPs & TOC: Use the DBPs & TOC button to filter the results for DBPs, TOC, and alkalinity. Columns and sort order will automatically adjust to help review the data.
  • Download: Use the Download button to export data to an Excel or CSV file. Only filtered results will be downloaded.
  • Reset: Click the Reset button to restore default settings.
Results not included & related pages
Abbreviations
  • Analyte Groups:  ARS = Arsenic, NO2 = Nitrite, NO3 = Nitrate
  • Analyte Levels:  MCL = Maximum contaminant level, ACL = Action level. Analyte level exceedances are indicated with bold red text.
  • Detection and Reporting Limits:  MDL = Federal minimum detection limit, MRL = Lab reporting level, ND = Not detected at the MDL or MRL.
Select Analytes

Sample Dates
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Facility ID Facility Name Sample Point ID Sample Location Source Type Analyte Group Analyte Code Analyte Name
Use the "Select Analytes" panel above to filter.
 Sample
Date		 Result Units Analyte
Level
Type		 Current
Analyte
Level		 Analyte
Level
Units		 Limit Limit
Type		 Received
Date		 Sample ID Comments Lab ID Lab Name Analysis Method Method Name TINWSF
ISN		 TSASAMPL
ISN		 TSASAR
ISN		 SelectYear SelectAnalyte SelectResult SelectFacilityID SelectFacilityName SelectSamplePointID SelectSampleLocation SelectSourceType SelectLabID SelectLabName SelectMethod SelectMethodName FilterSampleDate
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 7/16/2010 1.6 MG/L MCL 10 MG/L 0.01 MRL 7/30/2010 716291-I OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 14692 728139 10348362010 NO3-1040 D EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 2010-07-16
EP-A EP for WELL 1 Finished NO2 1041 NITRITE 7/16/2010 ND MG/L MCL 1 MG/L 0.01 MRL 7/30/2010 716291-I OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 14692 728139 10348062010 NO2-1041 N EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 2010-07-16
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 4/3/2024 ND MG/L MCL 10 MG/L 1 MRL 4/8/2024 214283-I OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 14692 2769435 36628832024 NO3-1040 N EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 2024-04-03
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 4/21/2011 0.01 MG/L MCL 10 MG/L 0.01 MRL 5/4/2011 10421321-I OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 14692 817383 11686672011 NO3-1040 D EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 2011-04-21
EP-A EP for WELL 1 Finished NO2 1041 NITRITE 4/21/2011 ND MG/L MCL 1 MG/L 0.01 MRL 5/4/2011 10421321-I OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 14692 817383 11686512011 NO2-1041 N EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 2011-04-21
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 10/29/2012 0.4 MG/L MCL 10 MG/L 0.01 MRL 11/27/2012 21029141-I OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 14692 1026081 14309582012 NO3-1040 D EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 2012-10-29
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 11/4/2008 0.42 MG/L MCL 10 MG/L 0.01 MRL 12/11/2008 A81104Z1-I OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 14692 554546 8084122008 NO3-1040 D EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 2008-11-04
EP-A EP for WELL 1 Finished NO2 1041 NITRITE 11/4/2008 ND MG/L MCL 1 MG/L 0.01 MRL 12/11/2008 A81104Z1-I OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 14692 554546 8084132008 NO2-1041 N EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 2008-11-04
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 7/1/2005 0.4 MG/L MCL 10 MG/L 7/25/2005 A50701BK-1 OR100030 PYXIS LABORATORIES INC - REDMOND 300.0 ION CHROMATOGRAPHY 14692 278238 4083022005 NO3-1040 D EP-A EP for WELL 1 Finished OR100030 PYXIS LABORATORIES INC - REDMOND 300.0 ION CHROMATOGRAPHY 2005-07-01
EP-A EP for WELL 1 Finished NO2 1041 NITRITE 7/1/2005 ND MCL 1 MG/L 0.1 MRL 7/25/2005 A50701BK-1 OR100030 PYXIS LABORATORIES INC - REDMOND 300.0 ION CHROMATOGRAPHY 14692 278238 4083032005 NO2-1041 N EP-A EP for WELL 1 Finished OR100030 PYXIS LABORATORIES INC - REDMOND 300.0 ION CHROMATOGRAPHY 2005-07-01
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 4/5/2004 1.4 MG/L MCL 10 MG/L 4/19/2004 L8421 OR100011 WYEAST ENVIRONMENTAL SCIENCES 300.0 ION CHROMATOGRAPHY 14692 188428 2571152004 NO3-1040 D EP-A EP for WELL 1 Finished OR100011 WYEAST ENVIRONMENTAL SCIENCES 300.0 ION CHROMATOGRAPHY 2004-04-05
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 4/4/2022 ND MG/L MCL 10 MG/L 1 MRL 4/7/2022 209563-I OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 14692 2457432 32505742022 NO3-1040 N EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 2022-04-04
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 4/9/2018 0.35 MG/L MCL 10 MG/L 0.23 MRL 4/11/2018 199899-I-I OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 14692 1838781 24692992018 NO3-1040 D EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 2018-04-09
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 4/6/2020 ND MG/L MCL 10 MG/L 1 MRL 4/13/2020 204709-I OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 14692 2154051 28853512020 NO3-1040 N EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 2020-04-06
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 10/28/2009 0.17 MG/L MCL 10 MG/L 0.01 MRL 11/6/2009 91028541-I OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 14692 648236 9357342009 NO3-1040 D EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 2009-10-28
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 5/5/2015 ND MG/L MCL 10 MG/L 1 MRL 5/5/2015 192836-I OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 14692 1385021 18945212015 NO3-1040 N EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 2015-05-05
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 4/5/2021 ND MG/L MCL 10 MG/L 0.005 MRL 4/7/2021 207177-I OR100002 THE DALLES WATER QUALITY LAB 4500NO3-F CADMIUM REDUCTION, AUTOMATED 14692 2306240 30666592021 NO3-1040 N EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 4500NO3-F CADMIUM REDUCTION, AUTOMATED 2021-04-05
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 5/10/2023 ND MG/L MCL 10 MG/L 1 MRL 5/12/2023 212150-I OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 14692 2628276 34918772023 NO3-1040 N EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 2023-05-10
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 10/13/2014 ND MG/L MCL 10 MG/L 0.53 MRL 10/15/2014 191872-I OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 14692 1303367 17964312014 NO3-1040 N EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 2014-10-13
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 4/8/2019 ND MG/L MCL 10 MG/L 1 MRL 4/10/2019 202361-I OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 14692 1993317 26523972019 NO3-1040 N EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 2019-04-08
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 11/14/2003 12.2 MG/L MCL 10 MG/L 0 MDL 12/15/2003 L3624 OR100011 WYEAST ENVIRONMENTAL SCIENCES 300.0 ION CHROMATOGRAPHY 14692 161703 2177222003 NO3-1040 E EP-A EP for WELL 1 Finished OR100011 WYEAST ENVIRONMENTAL SCIENCES 300.0 ION CHROMATOGRAPHY 2003-11-14
EP-A EP for WELL 1 Finished NO2 1041 NITRITE 11/14/2003 ND MCL 1 MG/L 0 MDL 12/15/2003 L3624 OR100011 WYEAST ENVIRONMENTAL SCIENCES 300.0 ION CHROMATOGRAPHY 14692 161703 2177232003 NO2-1041 N EP-A EP for WELL 1 Finished OR100011 WYEAST ENVIRONMENTAL SCIENCES 300.0 ION CHROMATOGRAPHY 2003-11-14
EP-A EP for WELL 1 Finished NO2 1041 NITRITE 10/28/2009 ND MG/L MCL 1 MG/L 0.1 MRL 11/24/2009 9102902-I OR100021 TEST AMERICA ATC - PORTLAND 300.0 ION CHROMATOGRAPHY 14692 653233 9411862009 NO2-1041 N EP-A EP for WELL 1 Finished OR100021 TEST AMERICA ATC - PORTLAND 300.0 ION CHROMATOGRAPHY 2009-10-28
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 4/17/2017 ND MG/L MCL 10 MG/L 1 MRL 4/19/2017 197211-I OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 14692 1682116 22831812017 NO3-1040 N EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 2017-04-17
EP-A EP for WELL 1 Finished NO2 1041 NITRITE 11/15/2013 ND MG/L MCL 1 MG/L 0.01 MRL 11/25/2013 301115031-I OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 14692 1174328 16323992013 NO2-1041 N EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 2013-11-15
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 11/15/2013 0.064 MG/L MCL 10 MG/L 0.01 MRL 11/25/2013 301115031-I OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 14692 1174328 16324192013 NO3-1040 D EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 300.0 ION CHROMATOGRAPHY 2013-11-15
EP-A EP for WELL 1 Finished ARS 1005 ARSENIC 11/15/2013 ND MG/L MCL 0.010 MG/L 0.0005 MRL 11/25/2013 301115031-I OR100028 COLUMBIA LABORATORIES, INC 200.8 INDUCTIVELY COUPLED PLASMA MASS SPECTROM 14692 1174328 16324312013 ARS-1005 N EP-A EP for WELL 1 Finished OR100028 COLUMBIA LABORATORIES, INC 200.8 INDUCTIVELY COUPLED PLASMA MASS SPECTROM 2013-11-15
EP-A EP for WELL 1 Finished NO3 1040 NITRATE 4/18/2016 ND MG/L MCL 10 MG/L 1 MRL 4/21/2016 194911-I OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 14692 1535138 20748082016 NO3-1040 N EP-A EP for WELL 1 Finished OR100002 THE DALLES WATER QUALITY LAB 10206 SPECTROPHOTOMETRIC 2016-04-18


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