OHA Drinking Water Services
PWS ID: 00668 ---- ROCKWOOD PUD
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
23-24886-I 05/02/2023 05/05/2023 NITRATE EP FOR TREATED CASCADE WELLS EP-C0.03
2209309 02/09/2022 02/18/2022 NITRATE EP FOR TREATED CASCADE WELLS EP-C0.01
2106863-I 02/02/2021 02/04/2021 NITRATE EP FOR TREATED CASCADE WELLS EP-C0.01
2025445-I 04/22/2020 04/30/2020 NITRATE EP FOR TREATED CASCADE WELLS EP-CND
1945485-I 06/25/2019 07/02/2019 NITRATE EP FOR TREATED CASCADE WELLS EP-C0.03
1945493 06/25/2019 07/15/2019 NITRATE EP FOR TREATED CASCADE WELLS EP-C0.02
1841413-I 06/08/2018 07/02/2018 NITRATE EP FOR TREATED CASCADE WELLS EP-C0.01
1753709-I 09/13/2017 09/19/2017 NITRATE EP FOR TREATED CASCADE WELLS EP-CND
1725805-I 05/15/2017 05/25/2017 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-B0.01
1630331-I 06/08/2016 09/26/2016 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-B0.01
1630332-I 06/08/2016 09/26/2016 NITRATE EP FOR TREATED CASCADE WELLS EP-C0.01
1534207-I 07/28/2015 08/11/2015 NITRATE EP FOR TREATED CASCADE WELLS EP-CND
1522280-I 05/19/2015 05/27/2015 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-B0.02
1421154-I 05/16/2014 06/03/2014 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-B0.02
1421156 05/16/2014 05/29/2014 NITRATE EP FOR TREATED CASCADE WELLS EP-C0.01
M191801-I 05/21/2013 06/06/2013 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-BND
M191701-I 05/21/2013 06/06/2013 NITRATE EP FOR TREATED CASCADE WELLS EP-CND
L169201-I 05/16/2012 06/04/2012 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-BND
L138201-I 03/20/2012 05/04/2012 NITRATE EP FOR TREATED CASCADE WELLS EP-CND
K197701-I 06/06/2011 06/29/2011 NITRATE EP FOR TREATED CASCADE WELLS EP-CND
K135901-I 02/28/2011 04/15/2011 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-BND
J125601-I 02/18/2010 04/02/2010 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-BND
0910315-I 04/13/2009 07/21/2009 NITRATE CASCADE WELL # 5 SRC-CCND
L134601-I 03/04/2009 07/21/2009 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-BND
H232701-I 07/07/2008 02/05/2009 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-BND
A70606R1-I 06/06/2007 01/10/2008 NITRATE EP FOR CASCADE WELLS & PWB (BLENDED) EP-BND
A60413AN-1 04/13/2006 06/05/2006 NITRATE EP FOR PORTLAND WATER B. EP-AND
A51005CQ-1 10/05/2005 10/24/2005 NITRATE EP FOR PORTLAND WATER B. EP-AND
A50324BK-1 03/24/2005 06/05/2006 NITRATE EP FOR PORTLAND WATER B. EP-AND
A30508CD-10I 05/08/2003 05/24/2005 NITRATE EP FOR PORTLAND WATER B. EP-AND
 

Archived Nitrate Samples
Sample ID Sample
Date		 Date
Received		 Analyte Name Source Name Source
ID		 Result
-1955123 03/18/1981 03/18/1981 Nitrate PORTLAND BUREAU OF WATER WORKS A0.13
 



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