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National Drinking Water Database

Di(2-ethylhexyl) phthalate in Arizona

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 Arizona

43 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
1Biasi Water Company
Beaver Dam, AZ
251 of 41.18 ppb
(0 to 4.7 ppb)
2Virgin MT Estates Mhp
Beaver Dam, AZ
601 of 21.1 ppb
(0 to 2.2 ppb)
3City of Chandler
Chandler, AZ
180,00018 of 420.76 ppb
(0 to 7.43 ppb)
4City of Show Low
Showlow, AZ
6,6953 of 110.66 ppb
(0 to 4.2 ppb)
5Prescott Valley Wtr Co - Lower System
Prescott Valley, AZ
5,5031 of 30.63 ppb
(0 to 1.9 ppb)
6Kahlua Well Co-Op
871 of 50.44 ppb
(0 to 2.2 ppb)
7Shantos Water Well
Tucson, AZ
451 of 50.44 ppb
(0 to 2.2 ppb)
8AZ Water Co-Rimrock
Phoenix, AZ
3,0851 of 70.41 ppb
(0 to 2.9 ppb)
9AZ Water Co-White Tanks
Phoenix, AZ
3,0542 of 40.4 ppb
(0 to 1 ppb)
10Prescott Valley WD Upper
Prescott Valley, AZ
33,4805 of 100.35 ppb
(0 to 1.3 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 Arizona

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

Violation TypeNumber of Violations
Failure to monitor regularly17
Over maximum contaminant level, Average1