National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Cyanogen Chloride
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Cyanogen chloride is an extremely toxic gas that was used as a poison; it is also utilized by the chemical industry and in mining and metalworking.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 1 |
- |
- |
| Water utilities | 4 |
- |
- |
| People Served | 41,578 |
- |
- |
Cyanogen Chloride Exposure by State
Water utilities in 1 states have reported detecting Cyanogen Chloride in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with Cyanogen Chloride contamination | |
|---|---|---|
| Systems | Population | |
| Texas | 4 | 41,578 |
| Total | 4 | 41,578 |
The Most Polluted Communities
4 water utilities reported detecting Cyanogen Chloride in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Cyanogen Chloride level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Cash Wsc Greenville, TX | 14,736 | 2 of 3 | 1.67 ppb (0 to 3.7 ppb) |
| 2 | City of Bonham Bonham, TX | 10,543 | 1 of 2 | 1.2 ppb (0 to 2.4 ppb) |
| 3 | City of Marlin Marlin, TX | 6,600 | 1 of 3 | 0.83 ppb (0 to 2.5 ppb) |
| 4 | East Cedar Creek Fwsd Brookshire Mabank, TX | 9,699 | 1 of 2 | 0.6 ppb (0 to 1.2 ppb) |
Health Based Limits for Cyanogen Chloride
| Standard | Description | Level |
|---|---|---|
| Children's health-based limit for 1-day exposure | Concentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency. | 50 ppb |
| Children's health-based limit for 10-day exposure | Concentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency. | 50 ppb |
| Drinking Water Equivalent Level | A lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency. | 2000 ppb |
Testing Summary for Cyanogen Chloride
| Are tests routinely required for Cyanogen Chloride by federal law? | No |
| Water suppliers reporting tests for Cyanogen Chloride (2004-2007): | 1,672 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2007): | 0.3 per year |