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:
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
0
states over legal limit
0
utilities over legal limit
0
people served over legal limit
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 | Utilities | People Served | Utilities | People Served | |||
| Maryland | 0 | 0 | 4 | 2,137,806 | |||
| Hawaii | 4 | 757,536 | 4 | 757,536 | |||
| Connecticut | 1 | 11,590 | 1 | 11,590 | |||
| Florida | 3 | 8,675 | 3 | 8,675 | |||
| North Carolina | 8 | 2,197 | 8 | 2,197 | |||
| Rhode Island | 1 | 353 | 1 | 353 | |||
| Oklahoma | 1 | 75 | 1 | 75 | |||
Utilities with the highest amounts of chlordane, 2015
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Royal Acres S/d | Raleigh, NC | 3 of 4 | 0.697 ppb | 63 |
| Gaddy Mobile Home Park | Kannapolis, NC | 1 of 1 | 0.600 ppb | 74 |
| Aloha Gardens Utilities | New Port Richey, FL | 1 of 2 | 0.550 ppb | 8,136 |
| Westwood S/d | Holiday, FL | 2 of 2 | 0.520 ppb | 344 |
| Cedar Village II | Chapel Hill, NC | 2 of 2 | 0.440 ppb | 28 |
| Magnolia Woods | Greensboro, NC | 1 of 1 | 0.400 ppb | 72 |
| Berkshire Downs | Raleigh, NC | 2 of 5 | 0.274 ppb | 267 |
| Ashebrook Park | Gastonia, NC | 1 of 4 | 0.230 ppb | 239 |
| Middlesex Water System | Middlesex, NC | 1 of 3 | 0.177 ppb | 850 |
| Camelot S/d | Garner, NC | 2 of 7 | 0.168 ppb | 604 |
| Blue Skies Estates | Ocala, FL | 1 of 2 | 0.0650 ppb | 195 |
| Honolulu-Windward-Pearl Harbor* | Honolulu, HI | 6 of 26 | 0.0635 ppb | 676,358 |
| Ri Community Living & Support (ladd | Exeter, RI | 1 of 5 | 0.0540 ppb | 353 |
| Avon Water Company* | Avon, CT | 3 of 19 | 0.0411 ppb | 11,590 |
| Boys Ranch Town | Edmond, OK | 1 of 1 | 0.0390 ppb | 75 |
| City of Baltimore* | Baltimore, MD | 3 of 5 | 0.00880 ppb | 1,600,000 |
* 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.
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Honolulu-Windward-Pearl Harbor* | Honolulu, HI | 6 of 26 | 0.0635 ppb | 676,358 |
| Avon Water Company* | Avon, CT | 3 of 19 | 0.0411 ppb | 11,590 |
| City of Baltimore* | Baltimore, MD | 3 of 5 | 0.00880 ppb | 1,600,000 |
* 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.