National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Gamma Chlordane
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Gamma chlordane is an isomer of the highly toxic organochlorine insecticide chlordane banned by EPA; it is bioaccumulative and pollutes the bodies of adults and newborn babies.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 1 |
- |
- |
| Water utilities | 1 |
- |
- |
| People Served | 201,000 |
- |
- |
Gamma Chlordane Exposure by State
Water utilities in 1 states have reported detecting Gamma Chlordane in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with Gamma Chlordane contamination | |
|---|---|---|
| Systems | Population | |
| Delaware | 1 | 201,000 |
| Total | 1 | 201,000 |
The Most Polluted Communities
1 water utilities reported detecting Gamma Chlordane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Gamma Chlordane level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Artesian Water Company Newark, DE | 201,000 | 7 of 68 | < 0.01 ppb (0 to 0.04 ppb) |
Testing Summary for Gamma Chlordane
| Are tests routinely required for Gamma Chlordane by federal law? | No |
| Water suppliers reporting tests for Gamma Chlordane (2004-2008): | 152 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2008): | 0.4 per year |