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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.

2,2-Dichloropropane is an intermediate used in chemical manufacturing.

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

Health Concerns for 2,2-Dichloropropane:

2,2-Dichloropropane Exposure by State

Water utilities in 8 states have reported detecting 2,2-Dichloropropane in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with 2,2-Dichloropropane contamination
North Carolina221,143
New York32,705

The Most Polluted Communities

11 water utilities reported detecting 2,2-Dichloropropane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average 2,2-Dichloropropane 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)
2Allegan County Services Center
Allegan, MI
1011 of 12.3 ppb
(2.3 ppb)
3Bedford Hills/Taconic Corr. Facilities
Bedford Hills, NY
1,1001 of 10.5 ppb
(0.5 ppb)
4Town of White Lake
White Lake, NC
2,5001 of 40.4 ppb
(0 to 1.6 ppb)
5City of Fresno Water Division
Fresno, CA
390,3502 of 3840.28 ppb
(0 to 94 ppb)
6Mcwa, Genesee West
Rochester, NY
8002 of 30.12 ppb
(0 to 0.25 ppb)
7Bluff Dale Wsc
Bluff Dale, TX
11 of 50.06 ppb
(0 to 0.3 ppb)
8Artesian Water Company
Newark, DE
201,0001 of 134< 0.01 ppb
(0 to 0.25 ppb)
9Moore Co Public Util-Pinehurst
Carthage, NC
18,6431 of 28< 0.01 ppb
(0 to 0.03 ppb)
10Emerald Coast Water Utility
Pensacola, FL
307,0763 of 642< 0.01 ppb
(0 to 0.06 ppb)

Testing Summary for 2,2-Dichloropropane

Are tests routinely required for 2,2-Dichloropropane by federal law?No
Water suppliers reporting tests for 2,2-Dichloropropane (2004-2009):21,406 of 47,576
Average testing rate for water supplier reporting tests (2004-2009):0.6 per year


Type of concern: Reference:
Not suspected to be an environmental toxin Environment Canada Domestic Substance List

Organ system toxicity (non-reproductive)

Type of concern: Reference:
Classified as not expected to be potentially toxic or harmful Environment Canada Domestic Substance List

Persistence and bioaccumulation

Type of concern: Reference:
Not suspected to be bioaccumulative Environment Canada Domestic Substance List

Government, industry, academic studies and classifications

government/industry list/academic study appears on list as classification(s)
Environment Canada Domestic Substance ListPROPANE, 2,2-DICHLORO-•This chemical was NOT flagged by CEPA for further attention. The chemical was flagged for suspected persistence.


government/industry list/academic study reference
Environment Canada Domestic Substance ListEC (Environment Canada). 2008. Domestic Substances List Categorization. Canadian Environmental Protection Act (CEPA) Environmental Registry.

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