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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.

StateWater Suppliers with Dichloroacetonitrile contamination
SystemsPopulation
Texas50407,227
Total50407,227

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

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1City of Paint Rock
Paint Rock, TX
3201 of 15.4 ppb
(5.4 ppb)
2East Cedar Creek Fwsd Brookshire
Mabank, TX
9,6992 of 22.38 ppb
(0.75 to 4 ppb)
3Macbee Wsc
Wills Point, TX
3,0362 of 22.35 ppb
(0.9 to 3.8 ppb)
4City of West Tawakoni
Quinlan, TX
2,9372 of 21.55 ppb
(0.9 to 2.2 ppb)
5West Cedar Creek Mud
Tool, TX
15,9692 of 21.54 ppb
(0.88 to 2.2 ppb)
6City of Point
Point, TX
6381 of 11.45 ppb
(1.45 ppb)
7Carolynn Estates
Dallas, TX
5972 of 21.4 ppb
(1.1 to 1.7 ppb)
8Chase Village Mobile Home Community
Baytown, TX
1761 of 11.2 ppb
(1.2 ppb)
9City of Emory
Emory, TX
1,2252 of 21.15 ppb
(0.8 to 1.5 ppb)
10Pleasure Point Wsc
Zavalla, TX
2161 of 11.05 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 2000ACETONITRILE, DICHLORO-• mutagenic - Positive mutation assay: Mutation in Micro-organism (Salmonella typhimurium )
• mutagenic - Positive mutation assay: DNA Damage ( human hla)
RTECS®- Environmental Mutagenesis 1983ACETONITRILE, DICHLORO-• mutagenic - Positive mutation assay: Mutation in Micro-organism (Salmonella typhimurium )
RTECS®- Environmental Mutagenesis 1985ACETONITRILE, DICHLORO-• mutagenic - Positive mutation assay: Sex Chromosome Loss and Nondisjunction (Drosophila melanogaster orl)
RTECS®- Environmental Mutagenesis 1986ACETONITRILE, DICHLORO-• mutagenic - Positive mutation assay: Mutation in Micro-organism (Salmonella typhimurium )
RTECS®- Fundamental and Applied Toxicology 1985ACETONITRILE, DICHLORO-• mutagenic - Positive mutation assay: Sister Chromatid Exchange (hamster ovr)
RTECS®- Mutation Research 1991ACETONITRILE, DICHLORO-• mutagenic - Positive mutation assay: Sex Chromosome Loss and Nondisjunction (Drosophila melanogaster ihl)
RTECS®- Mutation Research 1995ACETONITRILE, 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 6230ACETONITRILE, DICHLORO-• mutagenic - Positive mutation assay: DNA Damage ( human lym)



references

government/industry list/academic study reference
RTECS®- Environmental and Molecular Mutagenesis 2000RTECS®- Environmental and Molecular Mutagenesis. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.10- 36,52,2000
RTECS®- Environmental Mutagenesis 1983RTECS®- Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For publisher information, see EMMUEG. 5,447,1983
RTECS®- Environmental Mutagenesis 1985RTECS®- Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For publisher information, see EMMUEG. 7,325,1985
RTECS®- Environmental Mutagenesis 1986RTECS®- 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 1985RTECS®- 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 1991RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 261,85,1991
RTECS®- Mutation Research 1995RTECS®- Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 341,289,1995
RTECS®- National Technical Information Service 6230RTECS®- National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. PB84-246230

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