OHA Drinking Water Services
OR41
PWS ID: 05754 ---- BLACKWELL WATER SYSTEM
Coliform Results

See also:  Coliform Fact Sheet  ::  Archived Results (prior to 2002)  ::  Recent 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:  Show special samples  ::  Exclude results older than 2021

Sample
Date		 #
Samples		 Sample
Type		 Coliform
Type		 Result Sample
ID		 Repeat of
Sample ID		 Sample
Site		 Facility Chlorine
Residual		 Received
Date
Jan 30, 2024 1RT Total Absent 22400397AA 230 BLACKWELL DIST-A Feb 06, 2024
Jun 13, 2023 1RT Total Absent 22301917AA 230 BLACKWELL DIST-A Jun 20, 2023
Jan 26, 2023 1RT Total Absent 22300306AA 121 BLACKWELL DIST-A Jan 31, 2023
Oct 31, 2022 1RT Total Absent 22203707AA 121 BLACKWELL DIST-A Nov 09, 2022
Sep 26, 2022 1RT Total Absent 22203240AA A DIST-A Sep 28, 2022
Apr 21, 2022 1RT Total Absent 22201313AA 230 BLACKWELL DIST-A Apr 25, 2022
Feb 08, 2022 1RT Total Absent 22200489AA 121 BLACKWELL DIST-A Feb 11, 2022
Oct 14, 2021 1RT Total Absent 22103526AA 121 BLACKWELL DIST-A Oct 18, 2021
Jul 26, 2021 1RT Total Absent 22102508AA 121 BLACKWELL DIST-A Aug 04, 2021
May 10, 2021 1RT Total Absent 22101558AA 121 BLACKWELL DIST-A May 12, 2021
Mar 09, 2021 1RT Total Absent 22100809AA 121 BLACKWELL DIST-A Mar 12, 2021
Oct 22, 2020 1RT Total Absent 22003585AA 121 BLACKWELL DIST-A Oct 29, 2020
Sep 25, 2020 1RT Total Absent 22003183AA 230 BLACKWELL DIST-A Oct 02, 2020
Jun 17, 2020 1RT Total Absent 22001926AA 230 BLACKWELL DIST-A Jun 25, 2020
Feb 26, 2020 1RT Total Absent 22000614AA 121 BLACKWELL DIST-A Feb 27, 2020
Dec 04, 2019 1RT Total Absent 21904463AA 230 BLACKWELL DIST-A Dec 09, 2019
Aug 15, 2019 1RT Total Absent 21903083AA 201 BLACKWELL DIST-A Aug 16, 2019
Jun 20, 2019 1RT Total Absent 21902227AA 121 BLACKWELL DIST-A Jun 24, 2019
Jan 21, 2019 1RT Total Absent 21900279AA 121 BLACKWELL DIST-A Feb 01, 2019
Dec 12, 2018 1RT Total Absent 21804286AA 230 BLACKWELL DIST-A Dec 21, 2018
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Jul 17, 2018 1RT Total Absent 21802492AA 121 BLACKWELL DIST-A Jul 25, 2018
Jun 14, 2018 1RT Total Absent 21802042AA 230 BLACKWELL DIST-A Jun 20, 2018
Feb 15, 2018 1RT Total Absent 21800503AA 121 BLACKWELL RD DIST-A Feb 26, 2018
Nov 14, 2017 1RT Total Absent 21704044AA 121 BLACKWELL DIST-A Nov 27, 2017
Oct 24, 2017 1RT Total Absent 21703792AC 121 BLACKWELL DIST-A 1.00Nov 01, 2017
Oct 24, 2017 1RT Total Absent 21703792AB 201 BLACKWELL DIST-A 0.00Nov 01, 2017
Oct 24, 2017 1RT Total Absent 21703792AA 230 BLACKWELL DIST-A 1.00Nov 01, 2017
Sep 18, 2017 1RP Total Absent 21703349AC 21703313AA 230 DIST-A Sep 20, 2017
Sep 18, 2017 1RP Total Absent 21703349AB 21703313AA 121 DIST-A Sep 20, 2017
Sep 18, 2017 1TG Total Absent 21703348AA 21703313AA WELL SRC-AA Sep 20, 2017
Sep 18, 2017 1RP Total POSITIVE 21703349AA 21703313AA 201 BLACKWELL DR. DIST-A Sep 19, 2017
RP E. coli Absent 21703349AA 21703313AA 201 BLACKWELL DR. DIST-A
Sep 14, 2017 1RT Total POSITIVE 21703313AA 201 BLACKWELL DR. DIST-A Sep 15, 2017
RT E. coli Absent 21703313AA 201 BLACKWELL DR. DIST-A
Apr 17, 2017 1RT Total Absent 21701284AA 121 DIST-A Apr 20, 2017
Feb 06, 2017 1RT Total Absent 21700394AA 201 DIST-A Feb 14, 2017
Oct 20, 2016 1RT Total Absent 21603816AA 121 DIST-A Nov 03, 2016
Aug 23, 2016 1RT Total Absent 21603003AA 121 DIST-A Sep 08, 2016
Jun 23, 2016 1RT Total Absent 21602124AA 121 DIST-A Jul 01, 2016
Mar 08, 2016 1RT Total Absent 21600725AC 201 BLACKWELL DIST-A Mar 17, 2016
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Aug 12, 2015 1RT Total Absent 21503171AA 121 BLACKWELL DIST-A 2.00Sep 02, 2015
Apr 10, 2015 1RT Total Absent 21501467AA 201 BLACKWELL DIST-A 0.00Apr 17, 2015
Jan 26, 2015 1RT Total Absent 21500347AA 201 BLACKWELL DIST-A 0.50Feb 02, 2015
Dec 10, 2014 1RT Total Absent 21404800AA 121 BLACKWELL DIST-A Dec 17, 2014
Sep 22, 2014 1RT Total Absent 21403674AA 201 BLACKWELL DIST-A 0.00Oct 09, 2014
Jul 24, 2014 1RT Total Absent 21402801AE WELL HOUSE DIST-A 3.00Aug 04, 2014
Jul 24, 2014 1RT Total Absent 21402801AD 180 BLACKWELL DIST-A 3.50Aug 04, 2014
Jul 24, 2014 1RT Total Absent 21402801AC 230 BLACKWELL DIST-A Aug 04, 2014
Jul 24, 2014 1RT Total Absent 21402801AB 201 BLACKWELL DIST-A 3.50Aug 04, 2014
Jul 24, 2014 1RT Total Absent 21402801AA 121 BLACKWELL DIST-A 0.00Aug 04, 2014
Jun 26, 2014 1RP Total Absent 21402431AA 21402382AA 121 BLACKWELL DIST-A Jul 07, 2014
Jun 26, 2014 1RP Total POSITIVE 21402431AC 21402382AA 230 BLACKWELL DIST-A Jun 27, 2014
RP E. coli Absent 21402431AC 21402382AA 230 BLACKWELL DIST-A
Jun 26, 2014 1RP Total POSITIVE 21402431AB 21402382AA 201 BLACKWELL DIST-A Jun 27, 2014
RP E. coli Absent 21402431AB 21402382AA 201 BLACKWELL DIST-A
Jun 26, 2014 1TG Total POSITIVE 21402430AA 21402382AA WELL SRC-AA Jun 27, 2014
TG E. coli Absent 21402430AA 21402382AA WELL SRC-AA
Jun 23, 2014 1RT Total POSITIVE 21402382AA 201 BLACKWELL DIST-A Jun 26, 2014
RT E. coli Absent 21402382AA 201 BLACKWELL DIST-A
Mar 12, 2014 1RT Total Absent 21401014AA 201 BLACKWELL DIST-A Mar 14, 2014
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Dec 02, 2013 1RT Total Absent 21305303AA 201 BLACKWELL DIST-A Dec 05, 2013
Jul 30, 2013 1RT Total Absent 21303337AA 121 BLACKWELL DIST-A Jul 31, 2013
May 28, 2013 1RT Total Absent 21302235AA 230 BLACKWELL DIST-A May 31, 2013
Jan 29, 2013 1RT Total Absent 21300377AE 201 BLACKWELL DIST-A Feb 01, 2013
Jan 29, 2013 1RT Total Absent 21300377AD 245 BLACKWELL DIST-A Feb 01, 2013
Jan 29, 2013 1RT Total Absent 21300377AC 230 BLACKWELL DIST-A Feb 01, 2013
Jan 29, 2013 1RT Total Absent 21300377AB 180 BLACKWELL DIST-A Feb 01, 2013
Jan 29, 2013 1RT Total Absent 21300377AA 121 BLACKWELL DIST-A Feb 01, 2013
Dec 12, 2012 1TG Total Absent 21204935AA 21204869AA WELL SRC-AA Dec 14, 2012
Dec 10, 2012 1RP Total POSITIVE 21204902AD 21204869AA 201 BLACKWELL DIST-A 0.00Dec 11, 2012
RP E. coli POSITIVE 21204902AD 21204869AA 201 BLACKWELL DIST-A 0.00
Dec 10, 2012 1RP Total POSITIVE 21204902AC 21204869AA 230 BLACKWELL DIST-A 0.00Dec 11, 2012
RP E. coli POSITIVE 21204902AC 21204869AA 230 BLACKWELL DIST-A 0.00
Dec 10, 2012 1RP Total POSITIVE 21204902AB 21204869AA 180 BLACKWELL DIST-A 0.00Dec 11, 2012
RP E. coli POSITIVE 21204902AB 21204869AA 180 BLACKWELL DIST-A 0.00
Dec 10, 2012 1RP Total POSITIVE 21204902AA 21204869AA 121 BLACKWELL DIST-A 0.00Dec 11, 2012
RP E. coli POSITIVE 21204902AA 21204869AA 121 BLACKWELL DIST-A 0.00
Dec 10, 2012 1AS Total POSITIVE 21204901AA WELL SRC-AA Dec 11, 2012
AS E. coli POSITIVE 21204901AA WELL SRC-AA
Dec 07, 2012 1RT Total POSITIVE 21204869AA 201 BLACKWELL DIST-A Dec 10, 2012
RT E. coli Absent 21204869AA 201 BLACKWELL DIST-A
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Sep 10, 2012 1RT Total Absent 21203563AA 245 Blackwell Dr DIST-A 0.50Sep 18, 2012
Jun 25, 2012 1RT Total Absent 21202382AA Pumphouse DIST-A 0.50Jun 26, 2012
Mar 30, 2012 1RT Total Absent 21201161AA 180 Blackwell Dr. DIST-A 0.50Apr 02, 2012
Dec 23, 2011 1RT Total Absent 21104887AA Backyard Tenkate DIST-A 0.50Dec 24, 2011
Sep 30, 2011 1RT Total Absent 21103782AA Tenkate side of hous DIST-A 0.50Oct 03, 2011
Jun 30, 2011 1RT Total Absent 21102395AA Tenkate Garden DIST-A 0.50Jul 07, 2011
Mar 25, 2011 1RT Total Absent 21101113AA Pumphouse DIST-A 0.50Mar 30, 2011
Dec 21, 2010 1RT Total Absent 21005087AA Pumphouse DIST-A 0.50Dec 22, 2010
Oct 29, 2010 1RT Total Absent 21004358AA Pumphouse DIST-A 0.50Nov 01, 2010
Aug 26, 2010 1RT Total Absent 21003485AA Tenkate Garden DIST-A Aug 30, 2010
Aug 25, 2010 1RT Total Absent 21003446AA well tap DIST-A Aug 26, 2010
Aug 25, 2010 1RT Total Absent 21003447AC Tenkate Spout DIST-A 0.50Aug 26, 2010
Aug 25, 2010 1RT Total Absent 21003447AB Ripley Trees DIST-A 0.50Aug 26, 2010
Aug 25, 2010 1RT Total Absent 21003447AA Ripley Shop DIST-A 0.50Aug 26, 2010
Jul 02, 2010 1RP Total Absent 21002599AD 21002505AA Tenkate front yard DIST-A 0.50Jul 08, 2010
Jul 02, 2010 1RP Total Absent 21002599AC 21002505AA Ripley Forrest DIST-A 0.50Jul 08, 2010
Jul 02, 2010 1RP Total Absent 21002599AB 21002505AA Ripley Shop DIST-A 0.50Jul 08, 2010
Jul 02, 2010 1RP Total Absent 21002599AA 21002505AA Pumphouse DIST-A 0.50Jul 08, 2010
Jun 28, 2010 1RT Total POSITIVE 21002505AA well pumphouse DIST-A 0.50Jun 30, 2010
RT E. coli Absent 21002505AA well pumphouse DIST-A 0.50
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Mar 22, 2010 1RT Total Absent 21001097AA Pumphouse DIST-A 0.50Mar 24, 2010
Jan 29, 2010 1RT Total Absent 21000348AC 180 Blackwell Dr DIST-A Feb 01, 2010
Jan 28, 2010 1RT Total Absent 21000348AE 245 Blackwell Dr Bat DIST-A Feb 01, 2010
Jan 28, 2010 1RT Total Absent 21000348AD 245 Blackwell Dr Uti DIST-A Feb 01, 2010
Jan 28, 2010 1RT Total Absent 21000348AB pumphouse DIST-A Feb 01, 2010
Jan 28, 2010 1RT Total Absent 21000348AA 245 Blackwell Dr Bat DIST-A Feb 01, 2010
Dec 30, 2009 1RP Total Absent 20904377AE 20904355AA Pump House DIST-A Dec 31, 2009
Dec 30, 2009 1RP Total Absent 20904377AD 20904355AA 245 Blackwell Dr. Ut DIST-A Dec 31, 2009
Dec 30, 2009 1RP Total Absent 20904377AC 20904355AA 245 Blackwell Dr. Ba DIST-A Dec 31, 2009
Dec 30, 2009 1RP Total Absent 20904377AB 20904355AA 180 Blackwell Dr. DIST-A Dec 31, 2009
Dec 30, 2009 1RP Total Absent 20904377AA 20904355AA 245 Blackwell Dr Bat DIST-A Dec 31, 2009
Dec 28, 2009 1RT Total POSITIVE 20904355AA 180 blackwell dr DIST-A Dec 29, 2009
RT E. coli Absent 20904355AA 180 blackwell dr DIST-A
Sep 29, 2009 1RT Total Absent 20903352AA 180 Blackwell Dr DIST-A 0.50Oct 01, 2009
Mar 30, 2009 1RT Total Absent 20900934AA 180 BLACKWELL DRIVE DIST-A 0.50Apr 01, 2009
Dec 29, 2008 1RT Total Absent 081258501A PUMP HOUSE DIST-A Jan 02, 2009
Sep 29, 2008 1RT Total Absent 20803402AA PUMPHOUSE DIST-A 0.50Oct 01, 2008
Jun 29, 2008 1RT Total Absent 20902047AA 180 BLACKWELL DR DIST-A 0.03Jul 06, 2009
Jun 26, 2008 1RT Total Absent 20802107AA PUMP HOUSE DIST-A 0.50Jul 01, 2008
Mar 27, 2008 1RT Total Absent 20800943AA NP DIST-A Apr 01, 2008
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Jan 01, 2008 1RT Total Absent 20800003AA WELL TAP DIST-A Jan 03, 2008
Sep 30, 2007 1RT Total Absent 20703594AA WELL TAP DIST-A Oct 02, 2007
Jul 01, 2007 1RT Total Absent 20702255AA PUMPHOUSE DIST-A Jul 05, 2007
Apr 24, 2007 1RT Total Absent 20701356AA WELL TAP DIST-A Apr 26, 2007
Jan 24, 2007 1RT Total Absent 20700298AA PUMPHOUSE DIST-A Jan 26, 2007
Oct 30, 2006 1RT Total Absent 20600797AE FORREST LAWN DIST-A 0.05Nov 01, 2006
Oct 30, 2006 1RT Total Absent 20600797AD GARDEN PATIO DIST-A 0.05Nov 01, 2006
Oct 30, 2006 1RT Total Absent 20600797AC SHOP (TOP) DIST-A 0.05Nov 01, 2006
Oct 30, 2006 1RT Total Absent 20600797AB RV PAD DIST-A 0.05Nov 01, 2006
Oct 30, 2006 1RT Total Absent 20600797AA PUMPHOUSE DIST-A 0.05Nov 01, 2006
Sep 15, 2006 1RT Total POSITIVE 20600179AB BLACKWELL WATER SYST DIST-A 0.00Sep 18, 2006
RT E. coli Absent 20600179AB BLACKWELL WATER SYST DIST-A 0.00
Jun 27, 2006 1RT Total Absent 263613 DIST-A Jul 07, 2006
Mar 30, 2006 1RT Total Absent 262342 DIST-A Apr 13, 2006
Dec 21, 2005 1RT Total Absent 255778 DIST-A Jan 18, 2006
Sep 29, 2005 1RT Total Absent 354465 DIST-A Oct 05, 2005
Jun 29, 2005 1RT Total Absent 252686 DIST-A Aug 29, 2005
Mar 29, 2005 1RT Total Absent 251245 DIST-A Apr 15, 2005
Jun 28, 2004 1RT Total Absent 040666701A DIST-A Jul 06, 2004
Mar 18, 2004 1RT Total Absent 040338701A DIST-A Mar 26, 2004
Sample
Date 		#
Samples 		Sample
Type 		Coliform
Type 		Result Sample
ID 		Repeat of
Sample ID 		Sample
Site 		Facility Chlorine
Residual 		Received
Date
Sep 30, 2003 1RT Total Absent 031000301A DIST-A Oct 08, 2003
Mar 11, 2003 1RT Total Absent 030318801A DIST-A Mar 27, 2003
Dec 18, 2002 1RT Total Absent 021238201A DIST-A Dec 30, 2002
Sep 29, 2002 1RT Total Absent 020957401A DIST-A Oct 08, 2002
Jun 20, 2002 1RT Total Absent 020638401A DIST-A
Mar 24, 2002 1RT Total Absent 020340601A DIST-A Apr 01, 2002



See also:  Coliform Fact Sheet  ::  Archived Results (prior to 2002)  ::  Recent 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:  Show special samples  ::  Exclude results older than 2021


More information for this water system: SDWIS ID 539
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
Corrosion Control has moved to the Lead & Copper 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
Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home  ::  DWS Rules
Need help? Email Drinking Water Services for assistance.Staff/Partner Login