OHA Drinking Water Services
PWS ID: 00239 ---- LONDON WATER CO-OP
LRAAs and OELs

LRAA = Locational running annual average; OEL = Operational evaluation level. Learn about OELs here.
Averages are subject to change as new data is taken into consideration.

TTHM MCL = 0.080 mg/L,  HAA5 MCL = 0.060 mg/L.  MCL exceedances are indicated with red text.

Monitoring
Period
Last
Sample
Sample
Point
Location TTHM
LRAA
TTHM
OEL
HAA5
LRAA
HAA5
OEL
4Q2021 Dec 06, 2021 2DBP-01 72785 LONDON ROAD 0.033 0.037 0.013 0.011
3Q2021 Jul 05, 2021 2DBP-01 72785 LONDON ROAD 0.027 0.036 0.013 0.021
2Q2021 2DBP-01 72785 LONDON ROAD 0.019 0.008
1Q2021 Mar 01, 2021 2DBP-01 72785 LONDON ROAD 0.019 0.020 0.008 0.011
4Q2020 Dec 30, 2020 2DBP-01 72785 LONDON ROAD 0.017 0.017 0 0




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  ::  PFAS
DBPs  ::  TOC & Alkalinity  ::  DBP Sample Sites  ::  FANLs  ::  MRDL  ::  Turbidity  ::  SWTR  ::  RAA  ::  LRAAFor SDWIS: 3944

Information by county:
Inventory  ::  Surface Water Systems  ::  Water System Surveys  ::  Outstanding Performers  ::  Plan Reviews  ::  System Scores  ::  Exceedances
Alerts  ::  Violations  ::  Compliance & Enforcement  ::  Significant Deficiencies  ::  Treatment Plant Inspections  ::  Fluoride
Water Advisories  ::  Contact Reports  ::  Cyanotoxins  ::  PFAS  ::  Post-wildfire VOCs  ::  Public Notices

Inventory List for all Oregon Drinking Water Systems in Excel or printable screen format
Staff/Partner Login

Introduction  ::  Data Search Options  ::  Water System Search  ::  DWS Home

Need help? Email Drinking Water Services for assistance.