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Chlordane

Status: National drinking water standard exists

 

The cancer-causing pesticide chlordane was banned in 1988. Chlordane is persistent and accumulates in the body. It is still found in the environment and in the bodies of adults and newborn babies.

2015:

FOUND
FOUND ABOVE HEALTH GUIDELINES

7

states detected

22

utilities detected

2.9 million

people served

6

states over health guideline

18

utilities over health guideline

780,000

people served over health guideline

Health concerns for chlordane

Cancer

Hormone disruption

Harm to reproduction and child development

State and national drinking water standards and health guidelines

Health Guideline 0.03 ppb

The health guideline of 0.03 ppb for chlordane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion.

EPA Maximum Contaminant
Level (MCL) 2 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)0 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 chlordane in drinking water

UTILITIES REPORTING ABOVE HEALTH GUIDELINES UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served UtilitiesPeople Served
Maryland0042,137,806
Hawaii4757,5364757,536
Connecticut111,590111,590
Florida38,67538,675
North Carolina82,19782,197
Rhode Island13531353
Oklahoma175175
MORE
LESS

Utilities with the highest amounts of chlordane, 2015

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Royal Acres S/dRaleigh, NC3 of 40.697 ppb63
Gaddy Mobile Home ParkKannapolis, NC1 of 10.600 ppb74
Aloha Gardens UtilitiesNew Port Richey, FL1 of 20.550 ppb8,136
Westwood S/dHoliday, FL2 of 20.520 ppb344
Cedar Village IIChapel Hill, NC2 of 20.440 ppb28
Magnolia WoodsGreensboro, NC1 of 10.400 ppb72
Berkshire DownsRaleigh, NC2 of 50.274 ppb267
Ashebrook ParkGastonia, NC1 of 40.230 ppb239
Middlesex Water SystemMiddlesex, NC1 of 30.177 ppb850
Camelot S/dGarner, NC2 of 70.168 ppb604
Blue Skies EstatesOcala, FL1 of 20.0650 ppb195
Honolulu-Windward-Pearl Harbor*Honolulu, HI6 of 260.0635 ppb676,358
Ri Community Living & Support (laddExeter, RI1 of 50.0540 ppb353
Avon Water Company*Avon, CT3 of 190.0411 ppb11,590
Boys Ranch TownEdmond, OK1 of 10.0390 ppb75
City of Baltimore*Baltimore, MD3 of 50.00880 ppb1,600,000

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

UtilityLocationTestsAverage levelPeople served
Honolulu-Windward-Pearl Harbor*Honolulu, HI6 of 260.0635 ppb676,358
Avon Water Company*Avon, CT3 of 190.0411 ppb11,590
City of Baltimore*Baltimore, MD3 of 50.00880 ppb1,600,000

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