OHA Drinking Water Services
OR41
PWS ID: 05950 ---- 57TH & MAPLE WATER SYSTEM
Coliform Results

See also:  Coliform Fact Sheet  ::  Coliform Schedules  ::  Archived Results  ::  Batch Numbers

Sample types:  AS=Assessment, CO=Confirmation, MU=Make-up, RP=Repeat, RT=Routine, SP=Special, TG=Triggered. See the glossary for more information.

Filter options:  Hide special samples  ::  Show rejected samples  ::  Exclude results older than 2022

Sample
Date		 #
Samples		 Sample
Type		 Coliform
Type		 Result Sample
ID		 Repeat of
Sample ID		 Sample
Site		 Facility Chlorine
Residual		 Received
Date
Oct 22, 2025 1RT Total Absent 175-1241-1 5650 NW MAPLE KITCHEN FAUCET DIST-A Oct 24, 2025
RT E. coli Absent 175-1241-1 5650 NW MAPLE KITCHEN FAUCET DIST-A
Aug 19, 2024 1RT Total Absent 24-47355 DIST-A Aug 20, 2024
Feb 14, 2023 1RT Total Absent 23-08585 DIST-A Feb 17, 2023
Feb 15, 2022 1RT Total Absent 2210360 DIST-A Feb 18, 2022
Nov 08, 2021 1RT Total Absent 2181835 DIST-A Nov 12, 2021
Jul 26, 2021 1RT Total Absent 2152629 DIST-A Jul 31, 2021
May 11, 2021 1RT Total Absent 2132313 DIST-A May 14, 2021
Jan 25, 2021 1RT Total Absent 2105338 DIST-A Jan 27, 2021
Nov 24, 2020 1RT Total Absent 2079695 DIST-A Nov 25, 2020
Aug 25, 2020 1RT Total Absent 2055779 DIST-A Aug 27, 2020
Apr 28, 2020 1RT Total Absent 2026212 DIST-A May 01, 2020
Jan 21, 2020 1RT Total Absent 2004315 DIST-A Jan 24, 2020
Oct 22, 2019 1RT Total Absent 1978735 DIST-A Oct 25, 2019
Aug 27, 2019 1RT Total Absent 1962942 DIST-A Aug 30, 2019
Apr 30, 2019 1RT Total Absent 1930219 DIST-A May 02, 2019
Jan 29, 2019 1RT Total Absent 1907181 DIST-A Jan 31, 2019
Oct 23, 2018 1RT Total Absent 1881208 DIST-A Oct 26, 2018
Aug 21, 2018 1RT Total Absent 18-62864 5650 NW MAPLE DIST-A Aug 24, 2018
Jun 12, 2018 1RT Total Absent 18-42412 5650 NW MAPLE DIST-A Jun 15, 2018
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Jan 16, 2018 1RT Total Absent 18-03594 5650 NW MAPLE DIST-A Jan 25, 2018
Nov 28, 2017 1RT Total Absent 17-74282 5650 NW MAPLE DIST-A Dec 08, 2017
Aug 23, 2017 1RT Total Absent 17-47844 5650 NW MAPLE AVE. DIST-A Aug 25, 2017
Apr 25, 2017 1RT Total Absent 17-21674 5650 NW MAPLE DIST-A Apr 27, 2017
Jan 26, 2017 1RT Total Absent 17-04182 5650 NW MAPLE DIST-A Jan 31, 2017
Oct 25, 2016 1RT Total Absent 216-65317 5650 NW MAPLE DIST-A Oct 28, 2016
Aug 09, 2016 1RT Total Absent 16-46620 5650 NW MAPLE DIST-A Aug 11, 2016
May 10, 2016 1RT Total Absent 16-24144 5650 NW MAPLE DIST-A May 13, 2016
Jan 18, 2016 1RT Total Absent 16-02694 5650 NW MAPLE AVE DIST-A Jan 21, 2016
Oct 13, 2015 1RT Total Absent 1549256 5650 NW MAPLE DIST-A Oct 20, 2015
Sep 02, 2015 1RT Total Absent 1541514 57TH & MAPLE DIST-A Sep 11, 2015
May 12, 2015 1RT Total Absent B5E130901 UTILITY SINK DIST-A Jun 07, 2015
Feb 09, 2015 1RT Total Absent B5B091101 5650 NW MAPLE AVE BT DIST-A Mar 04, 2015
Dec 19, 2014 1RT Total Absent B4L190501 5650 NW MAPLE AVE DIST-A Dec 22, 2014
Sep 19, 2014 1RT Total Absent B4I191201 5650 MAPLE AVE DIST-A Oct 09, 2014
May 13, 2014 1RT Total Absent B4E132401 5650 NW MAPLE DIST-A May 23, 2014
Mar 19, 2014 1RT Total Absent B4C191201 5650 NW MAPLE DIST-A Apr 04, 2014
Dec 13, 2013 1RT Total Absent B3L130801 5650 NW MAPLE DIST-A Dec 26, 2013
Sep 17, 2013 1RT Total Absent B3I173301 5650 NW MAPLE DIST-A Oct 02, 2013
Apr 29, 2013 1RT Total Absent B3D290901 5650 NW MAPLE DIST-A May 02, 2013
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Jan 09, 2013 1RT Total Absent B3A091201 5650 NW MAPLE DIST-A Jan 17, 2013
Nov 13, 2012 1RT Total Absent B2K133101 5650 NW MAPLE DIST-A Nov 26, 2012
Sep 11, 2012 1RT Total Absent B2I114501 HB DIST-A Sep 20, 2012
Jun 18, 2012 1RT Total Absent B2F181201 5650 NW Maple DIST-A Jul 05, 2012
Feb 13, 2012 1RT Total Absent B2B131301 5650 NW Maple DIST-A Feb 23, 2012
Nov 29, 2011 1RT Total Absent B1K291901 Bath Faucet DIST-A Dec 08, 2011
Aug 30, 2011 1RT Total Absent B1H302001 5650 NW Maple DIST-A Sep 08, 2011
May 17, 2011 1RT Total Absent B1E171601 5650 NW Maple DIST-A May 24, 2011
Jan 21, 2011 1RT Total Absent B1A210501 5650 NW Maple DIST-A Feb 02, 2011
Nov 30, 2010 1RT Total Absent B0K300801 5650 NW Maple DIST-A Dec 02, 2010
Aug 13, 2010 1RT Total Absent B0H130601 5650 NW Maple DIST-A Aug 23, 2010
Apr 12, 2010 1RT Total Absent B0D120801 5650 NW Maple Ave DIST-A Apr 15, 2010
Feb 11, 2010 1RT Total Absent B0B110601 Bath Faucet DIST-A Feb 15, 2010
Nov 18, 2009 1RT Total Absent B9K181601 5650 NW Maple DIST-A Nov 25, 2009
Sep 18, 2009 1RT Total Absent B9I180901 5650 NW MAPLE DIST-A Sep 21, 2009
Jun 24, 2009 1RT Total Absent B9F242001 WELL HEAD DIST-A Jun 26, 2009
Mar 09, 2009 1RT Total Absent B9C090401 WELL HEAD DIST-A Mar 12, 2009
Feb 02, 2009 1RT Total Absent B9B020601 DIST-A Mar 11, 2009
Dec 10, 2008 1SP Total POSITIVE B8L101201 1474 NW 57TH DIST-A Dec 15, 2008
SP E. coli Absent B8L101201 1474 NW 57TH DIST-A
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Dec 09, 2008 1RT Total POSITIVE B8L091001 1474 NW 57TH DIST-A Dec 10, 2008
RT E. coli POSITIVE B8L091001 1474 NW 57TH DIST-A
Jul 22, 2008 1RT Total Absent B8G220401 1474 NW 57TH ST DIST-A Jul 28, 2008
Jul 22, 2008 1RT Total Absent B8G220402 WELL HOUSE DIST-A Jul 28, 2008
Jun 11, 2008 1SP Total Absent B8F110601 5650 MAPLE AVE DIST-A Jun 18, 2008
Jun 11, 2008 1SP Total Absent B8F110602 1510 NW 57TH DIST-A Jun 18, 2008
May 29, 2008 1SP Total POSITIVE B8E291402 1474 NW 57TH DIST-A May 30, 2008
SP E. coli Absent B8E291402 1474 NW 57TH DIST-A
May 29, 2008 1SP Total Absent B8E291401 WELL HEAD DIST-A May 30, 2008
May 13, 2008 1SP Total POSITIVE B8E130301 WELL HEAD DIST-A May 15, 2008
SP E. coli Absent B8E130301 WELL HEAD DIST-A
May 13, 2008 1SP Total Absent B8E130302 1474 NW 57TH DIST-A May 15, 2008
Apr 28, 2008 1RP Total POSITIVE B8D281301 B8D240601 1474 NW 57TH REDMOND DIST-A Apr 29, 2008
RP E. coli POSITIVE B8D281301 B8D240601 1474 NW 57TH REDMOND DIST-A
Apr 24, 2008 1RT Total POSITIVE B8D240601 1474 NW 57TH ST. RED DIST-A Apr 25, 2008
RT E. coli POSITIVE B8D240601 1474 NW 57TH ST. RED DIST-A
Dec 06, 2007 1RP Total POSITIVE B7L061201 B7L050401 1474 NW 57 N HOSEBIB DIST-A Dec 07, 2007
RP E. coli Absent B7L061201 B7L050401 1474 NW 57 N HOSEBIB DIST-A
Dec 06, 2007 1RP Total POSITIVE B7L061202 B7L050401 5650 NW MAPLE W HOSE DIST-A Dec 07, 2007
RP E. coli Absent B7L061202 B7L050401 5650 NW MAPLE W HOSE DIST-A
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Dec 06, 2007 1RP Total POSITIVE B7L061203 B7L050401 1474 NW 57TH S PASTU DIST-A Dec 07, 2007
RP E. coli Absent B7L061203 B7L050401 1474 NW 57TH S PASTU DIST-A
Dec 06, 2007 1RP Total POSITIVE B7L061204 B7L050401 WELL HOUSE DIST-A Dec 07, 2007
RP E. coli Absent B7L061204 B7L050401 WELL HOUSE DIST-A
Dec 05, 2007 1RT Total POSITIVE B7L050401 1474 NW 57TH ST DIST-A Dec 06, 2007
RT E. coli POSITIVE B7L050401 1474 NW 57TH ST DIST-A
Sep 21, 2007 1RT Total Absent B7I210401 1474 NW 57TH DIST-A Oct 01, 2007
Mar 29, 2007 1RT Total Absent B7C290601 1474 NW 57TH DIST-A Apr 02, 2007
Dec 13, 2006 1RT Total Absent B6L132102 1474 NW 57TH DIST-A Dec 19, 2006
Sep 22, 2006 1RT Total Absent B6I220401 DIST-A Sep 29, 2006
Jun 13, 2006 1RT Total Absent B6F130101 DIST-A Jun 16, 2006
Mar 15, 2006 1RT Total Absent 6031615-1 DIST-A Mar 28, 2006
Mar 15, 2006 1RT Total Absent 6031615-2 DIST-A Mar 28, 2006
Mar 15, 2006 1RT Total Absent 6031615-3 DIST-A Mar 28, 2006
Feb 15, 2006 1RT Total Absent 6021616 DIST-A Feb 23, 2006
Feb 15, 2006 1RT Total Absent 6021617 DIST-A Feb 23, 2006
Jan 23, 2006 1RT Total Absent 6012416 1447 NW 55TH DIST-A Feb 08, 2006
Jan 23, 2006 1RT Total Absent 6012415 GREEN TANK DIST-A Feb 08, 2006
Jan 23, 2006 1RT Total Absent 6012414 WELL DIST-A Feb 08, 2006
Jan 23, 2006 1RT Total Absent 6012413 1474 NW 57TH HB DIST-A Feb 08, 2006
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Dec 28, 2005 1RT Total POSITIVE A51229H5 SINK TAP DIST-A Jan 06, 2006
RT E. coli Absent A51229H5 SINK TAP DIST-A
Dec 28, 2005 1RT Total POSITIVE A51229H1 HOSE BIB A DIST-A Jan 06, 2006
RT E. coli Absent A51229H1 HOSE BIB A DIST-A
Dec 28, 2005 1RT Total POSITIVE A51229H2 HOSE BIB B DIST-A Jan 06, 2006
RT E. coli Absent A51229H2 HOSE BIB B DIST-A
Dec 28, 2005 1RT Total POSITIVE A51229H3 HOSE BIB C DIST-A Jan 06, 2006
RT E. coli Absent A51229H3 HOSE BIB C DIST-A
Dec 28, 2005 1RT Total POSITIVE A51229H4 HOSE BIB D DIST-A Jan 06, 2006
RT E. coli Absent A51229H4 HOSE BIB D DIST-A
Dec 07, 2005 1RP Total Absent A51207CE1 A51118I1 1474 57TH ST/HOSE BIB DIST-A Jan 06, 2006
Dec 07, 2005 1RP Total Absent A51207CE2 A51118I1 WELL HOUSE/HOSE BIB DIST-A Jan 06, 2006
Dec 07, 2005 1RP Total Absent A51207CE3 A51118I1 5650 NW MAPLE/HOSE B DIST-A Jan 06, 2006
Dec 07, 2005 1RP Total Absent A51207CE4 A51118I1 1447 NW 55TH/BR DIST-A Jan 06, 2006
Nov 17, 2005 1RT Total POSITIVE A51118I1 HOSE BIB DIST-A Nov 28, 2005
RT E. coli POSITIVE A51118I1 HOSE BIB DIST-A
Sep 29, 2005 1RT Total Absent A50930S1 HOSE BIB DIST-A Oct 10, 2005
Jun 01, 2005 1RT Total Absent A50601BE1 HOSE BIB DIST-A Jun 07, 2005
Feb 10, 2005 1RT Total Absent A50212I1 HOSE BIB DIST-A Feb 17, 2005
Nov 24, 2004 1RT Total Absent A41124BE1 HOSE BIB DIST-A Dec 06, 2004
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Sep 23, 2004 1RT Total Absent A40923BI1 HOSE BIB DIST-A Sep 25, 2004
Apr 09, 2004 1RT Total Absent A40409AF1 HOSE BIB DIST-A Apr 14, 2004
Feb 06, 2004 1RT Total Absent A40206AM1 HOSE BIB DIST-A Feb 10, 2004
Dec 23, 2003 1RT Total Absent A31223AY1 HOSE BIB DIST-A Dec 31, 2003
Sep 19, 2003 1RT Total Absent A30919BD1 HOSE BIB DIST-A Sep 23, 2003
Jun 27, 2003 1RT Total Absent A30627AS1 HOSE BIB DIST-A Jun 30, 2003
Jan 30, 2003 1RT Total Absent A30130AR1 HOSE BIB DIST-A Feb 06, 2003
Oct 04, 2002 1RT Total Absent A21004AJ1 HOSE BIB DIST-A Nov 06, 2002
Aug 21, 2002 1RT Total Absent A20821W1 HOSE BIB DIST-A Sep 06, 2002
May 10, 2002 1RT Total Absent A20510P1 Hose Bib DIST-A Jun 10, 2002
Jan 15, 2002 1RT Total Absent A20115AT1 Hose bib DIST-A Feb 08, 2002



See also:  Coliform Fact Sheet  ::  Coliform Schedules  ::  Archived Results  ::  Batch Numbers

Sample types:  AS=Assessment, CO=Confirmation, MU=Make-up, RP=Repeat, RT=Routine, SP=Special, TG=Triggered. See the glossary for more information.

Filter options:  Hide special samples  ::  Show rejected samples  ::  Exclude results older than 2022


More information for this water system: SDWIS ID 4156
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