The Power of Information

National Drinking Water Database


Ethylbenzene in Iowa


Ethylbenzene is a pollutant from petroleum refineries and industrial chemical factories; it is also used to make plastics, and may be present as an impurity in some insecticides. [read more]

The Most Polluted Communities in Iowa

62 water utilities reported detecting Ethylbenzene in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Ethylbenzene level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1New Market Water Supply
New Market, IA
4585 of 513.3 ppb
(0.5 to 54 ppb)
2Joice Water Supply
Lake Mills, IA
2312 of 312.18 ppb
(0 to 35 ppb)
3Table Mound Park
Dubuque, IA
6002 of 114.9 ppb
(0 to 52.8 ppb)
4Oakcrest Hills Estates
Hills, IA
541 of 14.05 ppb
(4.05 ppb)
5City of Magnolia
Logan, IA
2001 of 23.75 ppb
(0 to 7.5 ppb)
6Peosta Water Supply
Peosta, IA
1,0521 of 43.45 ppb
(0 to 13.8 ppb)
7Williams Water Supply
Williams, IA
4273 of 43.15 ppb
(0 to 11 ppb)
8Sirwa #2 (Creston)
Creston, IA
22,7216 of 62.92 ppb
(0.5 to 6 ppb)
9Auburn Water Supply
Auburn, IA
2961 of 22.65 ppb
(0 to 5.3 ppb)
10Crystal Lake Water Supply
Crystal La, IA
2851 of 12.2 ppb
(2.2 ppb)

Health Based Limits for Ethylbenzene

StandardDescriptionLevel
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.300 ppb
EPA Human Health Water Quality CriteriaWater quality criteria set by the US EPA provide guidance for states and tribes authorized to establish water quality standards under the Clean Water Act (CWA) to protect human health. These are non-enforceable standards based upon exposure by both drinking water and the contribution of water contamination to other consumed foods. Source: U.S. Environmental Protection Agency.530 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.700 ppb
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.700 ppb
Lifetime health-based limit, non-cancer riskConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for a lifetime of exposure. The Lifetime health-based limit (or Health Advisory, HA) is based on exposure for a a 70-kg adult consuming 2 liters of water per day. Source: U.S. Environmental Protection Agency.700 ppb
Children's health-based limit for 10-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic effects for up to ten days of exposure. The Ten-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.3000 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.3000 ppb
Children's health-based limit for 1-day exposureConcentration of a chemical in drinking water that is not expected to cause any adverse, noncarcinogenic health effects for up to one day of exposure. The One-Day health-based limit (or Health Advisory, HA) is typically set to protect a 10-kg child consuming 1 liter of water per day. Source: U.S. Environmental Protection Agency.30000 ppb

Violation Summary for Ethylbenzene in Iowa

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

Violation TypeNumber of Violations
Failure to monitor regularly1