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National Drinking Water Database

Di(2-ethylhexyl) phthalate in California

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 California

21 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
1Pillar Ridge Mhp (Former EL Granada Mhp)
Moss Beach, CA
1,0001 of 24.45 ppb
(0 to 8.9 ppb)
2Stockdale Ranchos Mutual Water Co
Bakersfield, CA
3001 of 13 ppb
(3 ppb)
3Littlerock Creek Irrigation Dist.
Littlerock, CA
2,9001 of 41.84 ppb
(0 to 7.37 ppb)
4City of Napa
Napa, CA
70,0001 of 61.83 ppb
(0 to 11 ppb)
5San Antonio Water Company
Upland, CA
2,9271 of 51.79 ppb
(0 to 8.94 ppb)
6Muscoy Mwc No. 1
Muscoy, CA
7,5001 of 41.67 ppb
(0 to 6.67 ppb)
7Whittier-City, Water Dept.
Whittier, CA
48,0002 of 131.45 ppb
(0 to 17.75 ppb)
8City of Ceres
Ceres, CA
30,0381 of 51.38 ppb
(0 to 6.9 ppb)
9Morro Bay Water Department
Morro Bay, CA
10,3601 of 11.07 ppb
(1.07 ppb)
10Hawthorne-City Water Dept.
Hawthorne, CA
46,1251 of 50.86 ppb
(0 to 4.3 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 California

There are no violations reported for this contaminant in California