CLATSOP, OR

Total Incidents:
141
Last Incident:
October 01, 2016

Note: Just because the latest incident is in 2017 or 2018 doesn't mean your water is free of contaminants! There is a considerable lag between when data is collected and when it is published by the EPA.

Contaminants

All Incidents

Water System Type Measure Violation Effects Begin Date
ASTORIA, CITY OF Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2016-10-01
ASTORIA, CITY OF Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2016-10-01
ASTORIA, CITY OF Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2016-10-01
ODF SPRUCE RUN PARK Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2015-10-01
ODF SPRUCE RUN PARK Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2015-10-01
ODF SPRUCE RUN PARK Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2015-10-01
ONEYS RESTAURANT/LOUNGE Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2015-01-01
ONEYS RESTAURANT/LOUNGE Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2015-01-01
YOUNGS RIVER LEWIS & CLARK WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2012-09-01
YOUNGS RIVER LEWIS & CLARK WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2012-09-01
YOUNGS RIVER LEWIS & CLARK WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2012-09-01
YOUNGS RIVER LEWIS & CLARK WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2012-09-01
YOUNGS RIVER LEWIS & CLARK WD Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2012-09-01
ODF NORTHRUP CREEK HORSE CAMP HP Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2012-04-01
ODF NORTHRUP CREEK HORSE CAMP HP Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2012-04-01
ODF NORTHRUP CREEK HORSE CAMP HP Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2012-04-01
ODF NORTHRUP CREEK HORSE CAMP HP Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2012-04-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-10-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-10-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-10-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2011-10-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2011-04-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2011-04-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2011-04-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2011-04-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2011-04-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2011-04-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2011-04-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2011-04-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2011-04-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2011-01-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2011-01-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2011-01-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2011-01-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2011-01-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2011-01-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2011-01-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2011-01-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2011-01-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2011-01-01
YOUNGS RIVER LEWIS & CLARK WD TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-10-01
YOUNGS RIVER LEWIS & CLARK WD TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-10-01
YOUNGS RIVER LEWIS & CLARK WD TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-10-01
YOUNGS RIVER LEWIS & CLARK WD TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-10-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-07-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-07-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-07-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-07-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-07-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-07-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-07-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-07-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-07-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-07-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-06-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-06-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-06-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-05-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-05-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-05-01
WESTPORT HEIGHTS Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-05-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-04-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-04-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-04-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-04-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-04-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-04-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-04-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-04-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-04-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-04-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-01-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-01-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-01-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-01-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-01-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2010-01-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-01-01
ODF/WL NEHALEM FISH HATCHERY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-01-01
ODF/WL NEHALEM FISH HATCHERY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-01-01
ODF/WL NEHALEM FISH HATCHERY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2010-01-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2010-01-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2009-10-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2009-10-01
ODF/WL NEHALEM FISH HATCHERY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2009-10-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2009-10-01
ODF/WL NEHALEM FISH HATCHERY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2009-10-01
ODF/WL NEHALEM FISH HATCHERY Coliform (TCR) MCL, Monthly (TCR) Maximum Contaminant Level Violation Not a health threat in itself; it is used to indicate whether other potentially harmful bacteria may be present5 2009-10-01
ARCH CAPE WATER DISTRICT Total Haloacetic Acids (HAA5) MCL, Average Maximum Contaminant Level Violation Increased risk of cancer 2009-10-01
ARCH CAPE WATER DISTRICT TTHM MCL, Average Maximum Contaminant Level Violation Liver, kidney or central nervous system problems; increased risk of cancer 2009-10-01