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National Drinking Water Database

National Drinking Water Database - Chemical Contaminants


Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.

trans-1,3-Dichloropropene is used in chemical synthesis, in agriculture as a soil fumigant and nematocide, and as a corrosion inhibition agent.

Found above
health guidelines
Found above
legal limit
Water utilities
People Served

Health Concerns for trans-1,3-Dichloropropene:

trans-1,3-Dichloropropene Exposure by State

Water utilities in 3 states have reported detecting trans-1,3-Dichloropropene in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with trans-1,3-Dichloropropene contamination
New York32,705

The Most Polluted Communities

5 water utilities reported detecting trans-1,3-Dichloropropene in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average trans-1,3-Dichloropropene level

RankSystem Population Served Positive test results of total reported tests Average Level
1Wild Oaks Water Company
Rockport, NY
8051 of 355.67 ppb
(0 to 167 ppb)
2Bedford Hills/Taconic Corr. Facilities
Bedford Hills, NY
1,1001 of 10.5 ppb
(0.5 ppb)
3Mcwa, Genesee West
Rochester, NY
8002 of 30.11 ppb
(0 to 0.22 ppb)
Upsala, MN
2801 of 50.04 ppb
(0 to 0.2 ppb)
Camdenton, MO
2,7791 of 22< 0.01 ppb
(< .01 to 2.2E-5 ppb)

Testing Summary for trans-1,3-Dichloropropene

Are tests routinely required for trans-1,3-Dichloropropene by federal law?No
Water suppliers reporting tests for trans-1,3-Dichloropropene (2004-2009):14,760 of 47,576
Average testing rate for water supplier reporting tests (2004-2009):0.5 per year


Type of concern: Reference:
One or more in vitro tests on mammalian cells show positive mutation results RTECS®- Cancer Letters (Shannon, Ireland) 1983
One or more in vitro tests non-mammalian cells show positive mutation results RTECS®- Cancer Research 1977

Organ system toxicity (non-reproductive)

Type of concern: Reference:
One or more animal studies show classified as toxic effects at moderate doses (low dose studies may be unavailable for this ingredient) EPA Toxic Release Inventory PBTs

Government, industry, academic studies and classifications

government/industry list/academic study appears on list as classification(s)
EPA Toxic Release Inventory PBTs(1E)-1-PROPENE, 1,3-DICHLORO-•Toxic, U.S. Environmental Protection Agency Toxics Release Inventory programs
RTECS®- Cancer Letters (Shannon, Ireland) 1983PROPENE, 1,3-DICHLORO-, (E)-• mutagenic - Positive mutation assay: Unscheduled DNA Synthesis ( human hla)
RTECS®- Cancer Research 1977PROPENE, 1,3-DICHLORO-, (E)-• mutagenic - Positive mutation assay: Mutation in Micro-organism (Salmonella typhimurium )


government/industry list/academic study reference
EPA Toxic Release Inventory PBTsEPA (U.S. Environmental Protection Agency). 1999. Toxics Release Inventory Program. PBT Chemical Rule.
RTECS®- Cancer Letters (Shannon, Ireland) 1983RTECS®- Cancer Letters (Shannon, Ireland). (Elsevier Scientific Pub. Ireland Ltd., POB 85, Limerick, Ireland) V.1- 20,263,1983
RTECS®- Cancer Research 1977RTECS®- Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 37,1915,1977

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