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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.

StateWater Suppliers with Cyanogen Chloride contamination
SystemsPopulation
Texas441,578
Total441,578

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

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Cash Wsc
Greenville, TX
14,7362 of 31.67 ppb
(0 to 3.7 ppb)
2City of Bonham
Bonham, TX
10,5431 of 21.2 ppb
(0 to 2.4 ppb)
3City of Marlin
Marlin, TX
6,6001 of 30.83 ppb
(0 to 2.5 ppb)
4East Cedar Creek Fwsd Brookshire
Mabank, TX
9,6991 of 20.6 ppb
(0 to 1.2 ppb)

Health Based Limits for Cyanogen Chloride

StandardDescriptionLevel
Children's health-based limit for 1-day exposureConcentration 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 exposureConcentration 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 LevelA 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