National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Dichloroacetonitrile
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Dichloroacetonitrile is an unregulated byproduct of tap water disinfection that forms when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 1 |
- |
- |
| Water utilities | 50 |
- |
- |
| People Served | 407,227 |
- |
- |
Health Concerns for Dichloroacetonitrile:
Dichloroacetonitrile Exposure by State
Water utilities in 1 states have reported detecting Dichloroacetonitrile in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with Dichloroacetonitrile contamination | |
|---|---|---|
| Systems | Population | |
| Texas | 50 | 407,227 |
| Total | 50 | 407,227 |
The Most Polluted Communities
50 water utilities reported detecting Dichloroacetonitrile in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Dichloroacetonitrile level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | City of Paint Rock Paint Rock, TX | 320 | 1 of 1 | 5.4 ppb (5.4 ppb) |
| 2 | East Cedar Creek Fwsd Brookshire Mabank, TX | 9,699 | 2 of 2 | 2.38 ppb (0.75 to 4 ppb) |
| 3 | Macbee Wsc Wills Point, TX | 3,036 | 2 of 2 | 2.35 ppb (0.9 to 3.8 ppb) |
| 4 | City of West Tawakoni Quinlan, TX | 2,937 | 2 of 2 | 1.55 ppb (0.9 to 2.2 ppb) |
| 5 | West Cedar Creek Mud Tool, TX | 15,969 | 2 of 2 | 1.54 ppb (0.88 to 2.2 ppb) |
| 6 | City of Point Point, TX | 638 | 1 of 1 | 1.45 ppb (1.45 ppb) |
| 7 | Carolynn Estates Dallas, TX | 597 | 2 of 2 | 1.4 ppb (1.1 to 1.7 ppb) |
| 8 | Chase Village Mobile Home Community Baytown, TX | 176 | 1 of 1 | 1.2 ppb (1.2 ppb) |
| 9 | City of Emory Emory, TX | 1,225 | 2 of 2 | 1.15 ppb (0.8 to 1.5 ppb) |
| 10 | Pleasure Point Wsc Zavalla, TX | 216 | 1 of 1 | 1.05 ppb (1.05 ppb) |
Testing Summary for Dichloroacetonitrile
| Are tests routinely required for Dichloroacetonitrile by federal law? | No |
| Water suppliers reporting tests for Dichloroacetonitrile (2004-2006): | 1,673 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2006): | 0.4 per year |
Cancer
| Type of concern: | Reference: |
| One or more in vitro tests on mammalian cells show positive mutation results | RTECS®- National Technical Information Service 6230 |
| One or more in vitro tests on mammalian cells show positive mutation results | RTECS®- Fundamental and Applied Toxicology 1985 |
| One or more in vitro tests on mammalian cells show positive mutation results | RTECS®- Environmental and Molecular Mutagenesis 2000 |
| One or more in vitro tests non-mammalian cells show positive mutation results | RTECS®- Environmental Mutagenesis 1983 |
| One or more in vitro tests non-mammalian cells show positive mutation results | RTECS®- Environmental Mutagenesis 1986 |
| One or more in vitro tests non-mammalian cells show positive mutation results | RTECS®- Mutation Research 1995 |
| One or more in vitro tests non-mammalian cells show positive mutation results | RTECS®- Environmental Mutagenesis 1985 |
| One or more in vitro tests non-mammalian cells show positive mutation results | RTECS®- Mutation Research 1991 |
| One or more in vitro tests non-mammalian cells show positive mutation results | RTECS®- Environmental and Molecular Mutagenesis 2000 |
| One or more in vitro tests on microorganisms show positive mutation results | RTECS®- Mutation Research 1995 |
Government, industry, academic studies and classifications
| government/industry list/academic study | appears on list as | classification(s) |
| RTECS®- Environmental and Molecular Mutagenesis 2000 | ACETONITRILE, DICHLORO- | • mutagenic - Positive mutation assay: Mutation in Micro-organism (Salmonella typhimurium ) • mutagenic - Positive mutation assay: DNA Damage ( human hla) |
| RTECS®- Environmental Mutagenesis 1983 | ACETONITRILE, DICHLORO- | • mutagenic - Positive mutation assay: Mutation in Micro-organism (Salmonella typhimurium ) |
| RTECS®- Environmental Mutagenesis 1985 | ACETONITRILE, DICHLORO- | • mutagenic - Positive mutation assay: Sex Chromosome Loss and Nondisjunction (Drosophila melanogaster orl) |
| RTECS®- Environmental Mutagenesis 1986 | ACETONITRILE, DICHLORO- | • mutagenic - Positive mutation assay: Mutation in Micro-organism (Salmonella typhimurium ) |
| RTECS®- Fundamental and Applied Toxicology 1985 | ACETONITRILE, DICHLORO- | • mutagenic - Positive mutation assay: Sister Chromatid Exchange (hamster ovr) |
| RTECS®- Mutation Research 1991 | ACETONITRILE, DICHLORO- | • mutagenic - Positive mutation assay: Sex Chromosome Loss and Nondisjunction (Drosophila melanogaster ihl) |
| RTECS®- Mutation Research 1995 | ACETONITRILE, DICHLORO- | • mutagenic - Positive mutation assay: Micronucleus test (non-mammalian species mul) • mutagenic - Positive mutation assay: other mutation test systems (Escherichia coli ) |
| RTECS®- National Technical Information Service 6230 | ACETONITRILE, DICHLORO- | • mutagenic - Positive mutation assay: DNA Damage ( human lym) |
references
| government/industry list/academic study | reference |
| RTECS®- Environmental and Molecular Mutagenesis 2000 | RTECS®- Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 36,52,2000 |
| RTECS®- Environmental Mutagenesis 1983 | RTECS®- Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For publisher information, see EMMUEG. 5,447,1983 |
| RTECS®- Environmental Mutagenesis 1985 | RTECS®- Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For publisher information, see EMMUEG. 7,325,1985 |
| RTECS®- Environmental Mutagenesis 1986 | RTECS®- Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For publisher information, see EMMUEG. 8(Suppl 7),1,1986 |
| RTECS®- Fundamental and Applied Toxicology 1985 | RTECS®- Fundamental and Applied Toxicology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1-40, 1981-97. For publisher information, see TOSCF2 5,1065,1985 |
| RTECS®- Mutation Research 1991 | RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 261,85,1991 |
| RTECS®- Mutation Research 1995 | RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 341,289,1995 |
| RTECS®- National Technical Information Service 6230 | RTECS®- National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. PB84-246230 |
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