The Power of Information

National Drinking Water Database

Di(2-ethylhexyl) phthalate in Montana

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 Montana

39 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
1Springvale Subdivision
Bozeman, MT
1384 of 64.72 ppb
(0 to 10 ppb)
2Star Meadows
321 of 32.63 ppb
(0 to 7.9 ppb)
3Old Hellgate Village Msla
Morgan, MT
907 of 132.63 ppb
(0 to 9 ppb)
4Monarch School Girls
563 of 112.22 ppb
(0 to 14.5 ppb)
5River Bluff Hoa Whitefish
Columbia Falls, MT
322 of 72.04 ppb
(0 to 10 ppb)
6City of Deer Lodge
Deer Lodge, MT
3,4211 of 41.98 ppb
(0 to 7.92 ppb)
7Summit Ranch
Kalispell, MT
1241 of 21.9 ppb
(0 to 3.8 ppb)
8Renae Court Subdivision
361 of 21.65 ppb
(0 to 3.3 ppb)
9Country Lake Homes Whitefish
Whitefish, MT
2601 of 21.55 ppb
(0 to 3.1 ppb)
10Stillwater Estates
Kalispell, MT
2903 of 91.34 ppb
(0 to 5.8 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 Montana

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

Violation TypeNumber of Violations
Failure to monitor regularly65