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National Drinking Water Database

Di(2-ethylhexyl) phthalate in Idaho

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 Idaho

35 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
1Blackhawk Estates
1003 of 44.55 ppb
(0 to 9.98 ppb)
2City of Driggs
Driggs, ID
1,1005 of 64.06 ppb
(0 to 7.6 ppb)
3City of Arco
Arco, ID
1,0805 of 62.97 ppb
(0 to 5.15 ppb)
4City of Mccammon
Mccammon, ID
8002 of 32.21 ppb
(0 to 4.38 ppb)
5Rio Vista Water Company 3
Caldwell, ID
1001 of 12.12 ppb
(2.12 ppb)
6Flying H Trailer Ranch Inc
Boise, ID
5003 of 91.66 ppb
(0 to 12.9 ppb)
7Wayside Mobile Home Court
Declo, ID
1001 of 11.2 ppb
(1.2 ppb)
8Riverside Trailer Court
Twin Falls, ID
351 of 21.09 ppb
(0 to 2.18 ppb)
9Falls Water Company Inc
Idaho Falls, ID
10,9001 of 31.08 ppb
(0 to 3.24 ppb)
10City of Butte
Arco, ID
594 of 40.96 ppb
(0.69 to 1.68 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 Idaho

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

Violation TypeNumber of Violations
Failure to monitor regularly25
Over maximum contaminant level, Single Sample1