Know Your Environment. Protect Your Health.

CONTAMINANT

Chlordane

FOUND

Exceeding guidelines

STATES DETECTED

9

serves

1.0 million

utilities detected

36

states detected

5

serves

29,504

utilities detected

12

Overview

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.

State, National, and Health Guidelines for Drinking Water

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

National Standard Exists

Health Concerns:

  • Cancer

  • Hormone disruption

  • Harm to reproduction and child development

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Chlordane from your water?

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Chlordane around the Country

UTILITIES REPORTING ABOVE HEALTH GUIDELINES UTILITIES WITH CONTAMINATION
State Utilities People Served Utilities People Served
Hawaii003647,737
New York003305,900
Florida38,6801426,456
Georgia113,500113,500
Delaware1100211,913
Alabama15,28015,280
Oklahoma0033,920
North Carolina61,94482,903
Pennsylvania001139

Utilities with the highest amounts of chlordane, 2021-2023

ALL UTILITIES
LARGE UTILITIES
Utility Location Tests Average level People served
Middlesex Water SystemRaleigh, NC7 of 100.840 ppb1,350
Aloha Gardens UtilitiesNew Port Richey, FL4 of 40.593 ppb8,136
Westwood S/dHoliday, FL3 of 30.427 ppb344
Magnolia WoodsClimax, NC2 of 30.345 ppb72
Henlopen Acres, Town ofRehoboth, DE2 of 30.293 ppb100
Mcconnell S/dDenver, NC2 of 70.213 ppb124
Cedar Village IICarrboro, NC2 of 60.182 ppb25
Santa Fe Hills SubdivisionAlachua, FL1 of 10.140 ppb200
Reynolds PlantationAtlanta, GA1 of 50.134 ppb13,500
Ashebrook ParkDenver, NC2 of 70.120 ppb231
Spencer Rd ParkDenver, NC1 of 50.0890 ppb142
Grove Hill Water WorksGrove Hill, AL2 of 80.0688 ppb5,280
Spruce Court ApartmentsJenkintown, PA1 of 90.0578 ppb139
Hillcrest Estates, Inc.Zephyrhills, FL1 of 10.0530 ppb130
Indian River Shores Mobile Home ParkMicco, FL1 of 10.0530 ppb55
Milburn Public Works AuthorityMilburn, OK1 of 20.0500 ppb317
Johnston County Rural Water District #3*Tishomingo, OK1 of 20.0500 ppb2,783
Bryan County Rural Water District #9Hendrix, OK2 of 180.0467 ppb820
Lake Wheeler Mobile Home ParkCary, NC1 of 50.0460 ppb180
Oak Park Trailer Court LLCTitusville, FL1 of 10.0370 ppb90
Port Washington WDPort Washington, NY5 of 610.0346 ppb34,000
Medfield Estates S/dDenver, NC1 of 90.0333 ppb779
Smyrna Water DepartmentSmyrna, DE1 of 70.0314 ppb11,813
Woodlands At NuuanuHonolulu, HI15 of 1820.0137 ppb48
Marine Corps Base HawaiiKaneohe Bay, HI15 of 1820.0137 ppb16,300
Honolulu-Windward-Pearl Harbor*Honolulu, HI15 of 1820.0137 ppb631,389
Soundings Yacht & Tennis ClubHobe Sound, FL1 of 10.01000 ppb450
Villa MargaretOkeechobee, FL1 of 10.01000 ppb132
Sunrise SouthwestFort Lauderdale, FL1 of 40.00900 ppb10,750
Hillburn VillageHillburn, NY5 of 870.00851 ppb950
Veolia Water New York - Rockland*West Nyack, NY5 of 870.00851 ppb270,950
Twa Sunbridge Water Treatment Plant*St. Cloud, FL1 of 70.00500 ppb542
Tavistock East (consec.)Orlando, FL1 of 70.00500 ppb1,043
Inlet Beach Water System, Inc.Inlet Beach, FL1 of 30.00333 ppb2,615
Town Of AstatulaAstatula, FL1 of 40.00250 ppb1,937
Lake Marian ResortKenansville, FL1 of 100.001000 ppb32

* 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
Reynolds PlantationAtlanta, GA1 of 50.134 ppb13,500
Port Washington WDPort Washington, NY5 of 610.0346 ppb34,000
Smyrna Water DepartmentSmyrna, DE1 of 70.0314 ppb11,813
Honolulu-Windward-Pearl Harbor*Honolulu, HI15 of 1820.0137 ppb631,389
Marine Corps Base HawaiiKaneohe Bay, HI15 of 1820.0137 ppb16,300
Sunrise SouthwestFort Lauderdale, FL1 of 40.00900 ppb10,750
Veolia Water New York - Rockland*West Nyack, NY5 of 870.00851 ppb270,950

* 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.

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