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EWG's Tap Water Database

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Dinoseb

Status: National drinking water standard exists

 

Dinoseb is a herbicide that causes birth defects and reproductive difficulties. It has been banned in the U.S. since 1986.

2015:

FOUND

6

states detected

7

utilities detected

52,384

people served

Health concerns for dinoseb

Harm to reproduction and child development

Change to fetal growth and development

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 7 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)7 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

States reporting dinoseb in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Massachusetts240,482
Alabama19,828
Florida11,231
North Carolina1492
Pennsylvania1291
Washington160
MORE
LESS

Utilities with the highest amounts of dinoseb, 2015

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Kontree Apartments Water SystemLynden, WA1 of 14.19 ppb60
Jefferson LandingJefferson, NC2 of 20.270 ppb492
Beauregard Water AuthorityOpelika, AL1 of 10.236 ppb9,828
Franklin Water Department*Franklin, MA2 of 40.125 ppb33,490
Pa Amer Water ThompsonSusquehanna, PA1 of 40.1000 ppb291
Taylor Coastal Water & Sewer DistrictPerry, FL1 of 40.0785 ppb1,231

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Dinoseb, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Franklin Water Department*Franklin, MA2 of 40.125 ppb33,490

* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Dinoseb, but it likely has the contaminant in its water supply.