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National Drinking Water Database

Di(2-ethylhexyl) phthalate in Washington

Di(2-ethylhexyl) phthalate is a pollutant from rubber and industrial chemical factories and a leachate from PVC pipes; it is classified by EPA as a probable human carcinogen. [read more]

The Most Polluted Communities in Washington

13 water utilities reported detecting Di(2-ethylhexyl) phthalate in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Di(2-ethylhexyl) phthalate level

RankSystem Population Served Positive test results of total reported tests Average Level
1Country Club Estates Water System
Moses Lake, WA
1591 of 112.3 ppb
(12.3 ppb)
2City of Washougal
Washougal, WA
10,7702 of 24.38 ppb
(3.7 to 5.05 ppb)
3Eastsound Water Users Association
Eastsound, WA
1,9221 of 23.4 ppb
(0 to 6.8 ppb)
4City of Electric City
Electric City, WA
1,2001 of 12.1 ppb
(2.1 ppb)
5Kelleys Estates
Kennewick, WA
1251 of 11.3 ppb
(1.3 ppb)
6Lewis Co Water District #2
Onalaska, WA
6001 of 20.93 ppb
(0 to 1.85 ppb)
7Dallesport Water Association
Cook, WA
3981 of 40.7 ppb
(0 to 2.8 ppb)
8Stevens Co Pud - River Park Estates
Loon Lake, WA
421 of 30.47 ppb
(0 to 1.4 ppb)
9Spo Co Water Dist #3, Sys #2
Spokane, WA
9,7941 of 40.46 ppb
(0 to 1.83 ppb)
10City of Mabton
Mabton, WA
2,0451 of 40.43 ppb
(0 to 1.7 ppb)

Health Based Limits for Di(2-ethylhexyl) phthalate

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
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.3 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.6 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.12 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.300 ppb
Drinking Water Equivalent LevelA lifetime exposure concentration protective of adverse, noncarcinogenic health effects, that assumes all of the exposure to a contaminant is from drinking water. Source: U.S. Environmental Protection Agency.700 ppb

Violation Summary for Di(2-ethylhexyl) phthalate in Washington

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Washington since 2004

Violation TypeNumber of Violations
Failure to monitor regularly429