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EWG's Tap Water Database — 2019 UPDATE

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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.

2015-2017:

FOUND
FOUND ABOVE HEALTH GUIDELINES

12

states detected

55

utilities detected

3.5 million

people served

6

states over health guideline

24

utilities over health guideline

101,000

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

EWG Health Guideline 0.03 ppb

The EWG 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.

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for chlordane, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to chlordane exposure.

ppb = parts per billion

States reporting chlordane in drinking water

UTILITIES REPORTING ABOVE HEALTH GUIDELINES UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served UtilitiesPeople Served
Maryland0061,847,761
Hawaii272,7435765,049
Delaware212,5834319,583
New York002271,900
Florida38,67510172,035
Pennsylvania00787,958
Connecticut00111,590
Alabama0014,845
Massachusetts14,00014,000
North Carolina152,952152,952
Rhode Island002429
Oklahoma175175
MORE
LESS

Filtering technologies that reduce chlordane

carbon filter icon

Activated Carbon

reverse osmosis icon

Reverse Osmosis

Utilities with the highest amounts of chlordane, 2015-2017

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
Gaddy Mobile Home ParkKannapolis, NC3 of 30.533 ppb74
Aloha Gardens UtilitiesNew Port Richey, FL3 of 50.530 ppb8,136
Magnolia WoodsGreensboro, NC3 of 30.433 ppb72
Westwood S/dHoliday, FL6 of 70.410 ppb344
Royal Acres S/dRaleigh, NC4 of 90.397 ppb63
Cedar Village IIChapel Hill, NC6 of 70.372 ppb28
Ashebrook ParkGastonia, NC3 of 100.241 ppb239
Mcconnell S/dDallas, NC2 of 50.226 ppb124
Helms Water SystemStanley, NC5 of 120.207 ppb94
Henlopen Acres, Town ofRehoboth, DE1 of 20.200 ppb999
Oak Ridge Military AcademyOak Ridge, NC5 of 100.180 ppb130
Berkshire DownsRaleigh, NC3 of 100.166 ppb267
Middlesex Water SystemMiddlesex, NC2 of 110.157 ppb850
Joint Base Pearl Harbor-Hickam*Jbphh, HI2 of 60.118 ppb65,230
AliamanuSchofield Barracks, HI2 of 60.118 ppb7,513
Rolling Acres S/dRaleigh, NC2 of 110.101 ppb58
Camelot S/dGarner, NC2 of 120.0982 ppb604
Smyrna Water DepartmentSmyrna, DE1 of 30.0967 ppb11,584
Colonial Heights-meadowbrookGarner, NC1 of 70.0960 ppb77
Snow Creek Heights Water SystemHickory, NC1 of 50.0560 ppb130
Dalewood-monteray Water SystemGastonia, NC1 of 50.0548 ppb142
Blue Skies EstatesOcala, FL1 of 30.0433 ppb195
Barre Water DepartmentBarre, MA1 of 50.0400 ppb4,000
Boys Ranch TownEdmond, OK1 of 10.0390 ppb75
Avon Water Company*Clinton, CT3 of 270.0289 ppb11,590
Ladd Center Water System*North Kingstown, RI1 of 110.0245 ppb129
Exeter Job Corps CenterProvidence, RI1 of 110.0245 ppb300
Honolulu-Windward-Pearl Harbor*Honolulu, HI21 of 2680.0191 ppb676,358
Marine Corps Base HawaiiKaneohe Bay, HI21 of 2680.0191 ppb15,900
Woodlands At NuuanuHonolulu, HI21 of 2680.0191 ppb48
Frostproof, City ofFrostproof, FL2 of 60.0177 ppb3,550
Mulberry, City ofMulberry, FL2 of 50.0176 ppb3,780
Rogersville Water Works and Sewer BoardRogersville, AL1 of 60.0167 ppb4,845
Artesian Water Company*Newark, DE7 of 1020.0167 ppb301,000
Fern Crest Utilities Inc.Ft Lauderdale, FL1 of 30.0147 ppb4,643
Molino Utilities Inc.Molino, FL1 of 40.0115 ppb7,746
South Broward Utility/sunriseFort Lauderdale, FL1 of 30.00967 ppb9,457
Miramar (East & West) PlantsMiramar, FL1 of 60.00750 ppb128,729
City of Fort MeadeFort Meade, FL1 of 20.00500 ppb5,455
Freedom Township Water & SewerEast Freedom, PA1 of 120.00251 ppb1,130
Altoona Water Authority*Altoona, PA1 of 120.00251 ppb62,500
Hollidaysburg Municipal AuthorityHollidaysburg, PA1 of 120.00251 ppb8,523
Blair Township Water & Sewer AuthorityDuncansville, PA1 of 120.00251 ppb2,550
Bellwood Borough AuthorityBellwood, PA1 of 120.00251 ppb3,162
United Water New York*West Nyack, NY1 of 1490.00235 ppb270,950
Hillburn VillageHillburn, NY1 of 1490.00235 ppb950
Bellefonte Borough Water AuthorityBellefonte, PA1 of 100.00185 ppb9,998
Apostolic TowersBaltimore, MD3 of 240.00183 ppb200
City of Baltimore*Baltimore, MD3 of 240.00183 ppb1,600,000
Keswick Multi-care CenterBaltimore, MD3 of 240.00183 ppb147

* 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
Joint Base Pearl Harbor-Hickam*Jbphh, HI2 of 60.118 ppb65,230
Smyrna Water DepartmentSmyrna, DE1 of 30.0967 ppb11,584
Avon Water Company*Clinton, CT3 of 270.0289 ppb11,590
Marine Corps Base HawaiiKaneohe Bay, HI21 of 2680.0191 ppb15,900
Honolulu-Windward-Pearl Harbor*Honolulu, HI21 of 2680.0191 ppb676,358
Artesian Water Company*Newark, DE7 of 1020.0167 ppb301,000
Miramar (East & West) PlantsMiramar, FL1 of 60.00750 ppb128,729
Altoona Water Authority*Altoona, PA1 of 120.00251 ppb62,500
United Water New York*West Nyack, NY1 of 1490.00235 ppb270,950
City of Baltimore*Baltimore, MD3 of 240.00183 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.