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EWG's Tap Water Database

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Dieldrin

Status: No national drinking water standard exists

 

Dieldrin is a highly toxic insecticide that was banned in the 1970s due to its persistence in the environment and toxicity to people and wildlife.

2015:

FOUND

5

states detected

9

utilities detected

364,000

people served

Health concerns for dieldrin

Cancer

Harm to the central nervous system

Change to fetal growth and development

States reporting dieldrin in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Delaware2307,000
Connecticut251,128
Maryland13,500
New York22,563
Pennsylvania2175
MORE
LESS

Utilities with the highest amounts of dieldrin, 2015

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Hurley Water CompanyHurley, NY1 of 614.5 ppb2,483
Black Creek ApartmentsFarrockaway, NY2 of 20.250 ppb80
Riveredge RentalsSpring City, PA1 of 10.1000 ppb80
Manchester Water Department*Manchester, CT6 of 120.0731 ppb51,066
Artesian Water Company*Newark, DE6 of 330.0158 ppb301,000

* 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 Dieldrin, but it likely has the contaminant in its water supply.

UtilityLocationTestsAverage levelPeople served
Manchester Water Department*Manchester, CT6 of 120.0731 ppb51,066
Artesian Water Company*Newark, DE6 of 330.0158 ppb301,000

* 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 Dieldrin, but it likely has the contaminant in its water supply.