National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Butane
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Butane is a component of natural gas as well as aerosols and lighter fuel, and is used as an extraction agent in the food processing industry.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 1 |
- |
- |
| Water utilities | 22 |
- |
- |
| People Served | 2,728,764 |
- |
- |
Butane Exposure by State
Water utilities in 1 states have reported detecting Butane in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with Butane contamination | |
|---|---|---|
| Systems | Population | |
| Texas | 22 | 2,728,764 |
| Total | 22 | 2,728,764 |
The Most Polluted Communities
22 water utilities reported detecting Butane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Butane level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | Bluff Dale Wsc Bluff Dale, TX | 1 | 5 of 5 | 61.13 ppb (14.09 to 126 ppb) |
| 2 | Heatherloch Mud Tomball, TX | 6,129 | 1 of 1 | 53 ppb (53 ppb) |
| 3 | Mesa Grande Wsc Weatherford, TX | 351 | 3 of 3 | 41.45 ppb (5.7 to 66.65 ppb) |
| 4 | Benbrook Village Mobile Home Park Fort Worth, TX | 180 | 1 of 1 | 35.91 ppb (35.91 ppb) |
| 5 | B F E Water Co Weatherford, TX | 9 | 1 of 1 | 33.64 ppb (33.64 ppb) |
| 6 | Lake Country Acres Houston, TX | 588 | 2 of 2 | 33.05 ppb (3.1 to 63 ppb) |
| 7 | Treichel Woods Estates Pinehurst, TX | 162 | 2 of 2 | 30 ppb (18 to 42 ppb) |
| 8 | North Harris County Regional Water Autho TX | 0 | 1 of 1 | 24.5 ppb (24.5 ppb) |
| 9 | Harris County Mud 44 Spring, TX | 2,277 | 2 of 2 | 23.3 ppb (2.6 to 44 ppb) |
| 10 | Northwest Harris County Mud 23 Spring, TX | 3,276 | 3 of 3 | 13.43 ppb (7.7 to 24.5 ppb) |
Testing Summary for Butane
| Are tests routinely required for Butane by federal law? | No |
| Water suppliers reporting tests for Butane (2004-2007): | 22 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2007): | 0.4 per year |