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National Drinking Water Database


1,2-Dichloroethane in Texas


1,2-Dichloroethane is a chemical used in the production of vinyl chloride; it is released as a pollutant from industrial chemical factories. [read more]

The Most Polluted Communities in Texas

8 water utilities reported detecting 1,2-Dichloroethane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average 1,2-Dichloroethane level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Williams Trailer Court
Odessa, TX
507 of 70.56 ppb
(0.35 to 0.9 ppb)
2Friona Municipal Water System
Friona, TX
3,8154 of 70.44 ppb
(0 to 1.01 ppb)
3City of Levelland
Levelland, TX
13,8053 of 90.15 ppb
(0 to 0.96 ppb)
4City of Lockney
Lockney, TX
2,1001 of 30.15 ppb
(0 to 0.45 ppb)
5City of Sundown
Sundown, TX
1,5052 of 40.13 ppb
(0 to 0.3 ppb)
6City of Roscoe
Roscoe, TX
1,3781 of 80.06 ppb
(0 to 0.5 ppb)
7Bluff Dale Wsc
Bluff Dale, TX
11 of 50.06 ppb
(0 to 0.3 ppb)
8Plainview Municipal Water System
Plainview, TX
2,0003 of 130.06 ppb
(0 to 0.3 ppb)

Health Based Limits for 1,2-Dichloroethane

StandardDescriptionLevel
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 ppb
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.0.38 ppb
California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.0.4 ppb
One in one million (10-6) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 1,000,000. Source: U.S. Environmental Protection Agency.0.4 ppb
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.5 ppb
One in ten thousand (10-4) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 10,000. Source: U.S. Environmental Protection Agency.40 ppb
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.700 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.700 ppb

Violation Summary for 1,2-Dichloroethane in Texas

There are no violations reported for this contaminant in Texas