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Hexachlorocyclopentadiene

Status: National drinking water standard exists

 

Hexachlorocyclopentadiene was historically used for the manufacture of currently banned pesticides, such as endrin, dieldrin and chlordane. It's still used for production of flame retardants, resins and plastics.

2015:

FOUND
FOUND ABOVE HEALTH GUIDELINES

13

states detected

64

utilities detected

912,000

people served

0

states over health guideline

0

utilities over health guideline

0

people served over health guideline

Health concerns for hexachlorocyclopentadiene

Harm to the stomach and intestines

Change to the liver

Change to the kidney

Irritation of the lungs

State and national drinking water standards and health guidelines

Health Guideline 2 ppb

The health guideline of 2 ppb for hexachlorocyclopentadiene 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 harm to the stomach and intestines.

ppb = parts per billion.

EPA Maximum Contaminant
Level (MCL) 50 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)50.0 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 hexachlorocyclopentadiene in drinking water

UTILITIES WITH CONTAMINATION
State UtilitiesPeople Served
Colorado12536,840
Indiana9105,393
Maryland464,297
Nevada260,030
North Carolina844,779
Louisiana526,444
Massachusetts224,979
Texas421,737
New Mexico516,064
Florida85,602
Vermont33,922
New York11,400
Montana1820
MORE
LESS

Utilities with the highest amounts of hexachlorocyclopentadiene, 2015

ALL UTILITIES
LARGE UTILITIES
UtilityLocationTestsAverage levelPeople served
City of Rose CityVidor, TX1 of 10.340 ppb590
Crested Butte, Town ofCrested Butte, CO1 of 10.200 ppb2,000
Navajo Dam Domestic Water Consumers Inc.Navajo Dam, NM2 of 20.130 ppb458
Bard CollegeAnnandale On Hudson, NY1 of 10.130 ppb1,400
Bloomfield Water Supply System*Bloomfield, NM4 of 40.125 ppb7,433
Harris County FWSD 51*Houston, TX1 of 20.115 ppb10,401
Mcindoe Falls Fire District 3Mcindoe Falls, VT2 of 40.108 ppb176
Swanton Village WaterSwanton, VT1 of 20.1000 ppb2,986
City of NomeNome, TX1 of 30.0900 ppb870
River Grove Mobile Home VillageMicco, FL1 of 20.0885 ppb432
Harlem, City ofHarlem, MT1 of 20.0800 ppb820
Fairview Union Water System*Campti, LA2 of 20.0645 ppb2,205
South Hero Fire District 4S Hero, VT1 of 50.0500 ppb760
City of Bloomington Utilities*Bloomington, IN3 of 60.0500 ppb63,580
New Castle, Town of*New Castle, CO1 of 20.0500 ppb3,400
Southern Pines*Pinebluff, NC1 of 30.0480 ppb16,200
Newport Ridge Mobile Home ParkNewport, NC1 of 30.0433 ppb74
Travelers Rest Resort Inc.San Antonio, FL1 of 10.0420 ppb1,100
Gramercy Waterworks*Gramercy, LA0 of 1ND3,613
St. James Water District 2*Convent, LA0 of 1ND9,392
Upper Eagle Regional WAVail, CO4 of 100.0398 ppb31,581
Lutcher Waterworks*Lutcher, LA of 0ND0
Mineota EstatesSilt, CO1 of 20.0380 ppb105
Bogue Banks Water Corporation*Emerald Isle, NC2 of 60.0377 ppb4,995
St. James Water District 1*Convent, LA0 of 1ND6,120
City of Frederick*Frederick, MD1 of 80.0338 ppb54,000
Whispering Pines Mobile Home ParkKissimmee, FL1 of 10.0320 ppb465
Iberville Water Works District 3*Plaquemine, LA1 of 40.0300 ppb9,168
Sandy Point 480 Water SystemCampti, LA1 of 20.0245 ppb458
Southern Comfort Mobile Home ParkClearwater, FL1 of 10.0240 ppb368

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

MORE
LESS
UtilityLocationTestsAverage levelPeople served
Harris County FWSD 51*Houston, TX1 of 20.115 ppb10,401
City of Bloomington Utilities*Bloomington, IN3 of 60.0500 ppb63,580
Southern Pines*Pinebluff, NC1 of 30.0480 ppb16,200
Upper Eagle Regional WAVail, CO4 of 100.0398 ppb31,581
City of Frederick*Frederick, MD1 of 80.0338 ppb54,000
Cherokee MD*Colorado Springs, CO2 of 90.0233 ppb20,600
Colorado Springs Utilities*Colorado Springs, CO1 of 30.0190 ppb418,096
Morgan City Water System*Morgan City, LA of 0ND0
Gretna WaterworksGretna, LA0 of 1ND17,802
Ashland Water and Sewer Department*Ashland, MA1 of 20.00850 ppb16,593
Carson City Public Works*Carson City, NV1 of 470.00255 ppb56,000

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