OHA Drinking Water Services
PWS ID: 00548 ---- CLARKS BRANCH WATER ASSOC

Alerts indicate water quality tests with analytical results greater than the detection limit or one-half of the maximum allowable contaminant level which may require some follow-up actions by Drinking Water Services. See the Contacts link for reports on follow-up actions. Alerts are not water quality violations. Violations for this water system can be found here.

Alert Type Abbreviations:  CHEM = Chemical
Results:  10 alerts found for this water system.Show response time
Water Quality Alerts
Alert ID Sample
Date
Alert
Date
Source
ID
Source Name Alert
Type
Contaminant Result Alert
Level
MCL Contact
Report
CHEM9553 11/09/2021 11/23/2021 DIST-A DISTRIBUTION SYSTEM CHEM TOTAL HALOACETIC ACIDS (HAA5) 0.07020.06 0.06
CHEM9414 08/09/2021 08/12/2021 DIST-A DISTRIBUTION SYSTEM CHEM TOTAL TRIHALOMETHANES (TTHM) 0.08040.08 0.0808/31/2021
CHEM7791 11/20/2017 11/29/2017 DIST-A DISTRIBUTION SYSTEM CHEM TOTAL HALOACETIC ACIDS (HAA5) 0.06260.06 0.06
CHEM7404 11/06/2016 11/21/2016 DIST-A DISTRIBUTION SYSTEM CHEM TOTAL HALOACETIC ACIDS (HAA5) 0.06860.06 0.06
CHEM6444 08/28/2014 09/29/2014 EP-A EP FOR SOUTH UMPQUA RIVER CHEM XYLENES 0.00320.0005 10
CHEM6436 08/28/2014 09/22/2014 DIST-A Distribution System CHEM TOTAL TRIHALOMETHANES (TTHM) 0.1030.08 0.08
CHEM5566 09/11/2012 10/15/2012 EP-A EP FOR SOUTH UMPQUA RIVER CHEM XYLENES 0.000520.0005 1011/05/2012
CHEM5139 08/30/2011 11/14/2011 EP-A EP FOR SOUTH UMPQUA RIVER CHEM XYLENES 0.00150.0005 1011/14/2011
CHEM3176 08/25/2008 10/09/2008 EP-A EP FOR SOUTH UMPQUA RIVER CHEM XYLENES 0.00180.0005 10
CHEM506 05/20/2003 09/10/2003 EP-A EP FOR SOUTH UMPQUA RIVER CHEM XYLENES 0.00190.0005 10


Archived Alerts (SWS database)
Date Source Chemical Results mg/l MCL mg/l
09/20/2000A--EP FOR SOUTH UMPQUA RIVERBenzene0.0075 0.005
09/20/2000A--EP FOR SOUTH UMPQUA RIVERChloromethane0.0074
09/20/2000A--EP FOR SOUTH UMPQUA RIVERCis-1,2-Dichloroethylene0.0058 0.07
05/04/1999Coliform
09/20/2000A--EP FOR SOUTH UMPQUA RIVEREthylbenzene0.0007 0.7
09/20/2000A--EP FOR SOUTH UMPQUA RIVEREthylbenzene0.0636 0.7
09/20/2000A--EP FOR SOUTH UMPQUA RIVERMonochlorobenzene (Chlorobenzene)0.0021 0.1
09/20/2000A--EP FOR SOUTH UMPQUA RIVERO-Chlorotoluene0.0005
09/20/2000A--EP FOR SOUTH UMPQUA RIVERO-Chlorotoluene0.0025
02/24/1998A--EP FOR SOUTH UMPQUA RIVERSodium34.5
09/20/2000A--EP FOR SOUTH UMPQUA RIVERStyrene0.001 0.1
09/20/2000A--EP FOR SOUTH UMPQUA RIVERStyrene0.0027 0.1
09/20/2000A--EP FOR SOUTH UMPQUA RIVERTotal Xylenes0.0021 10
09/20/2000A--EP FOR SOUTH UMPQUA RIVERTotal Xylenes0.16 10



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
DBPs :: TOC & Alkalinity :: DBP Sample Sites :: FANLs :: MRDL :: Turbidity :: SWTR :: RAA :: LRAA For SDWIS: 3972