National Drinking Water Database
National Drinking Water Database - Chemical Contaminants
Dichloroiodomethane
Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.
Dichloroiodomethane is an unregulated byproduct of tap water disinfection that forms when chlorine, chloramines or other disinfectants react with organic and inorganic matter in water.
Detected |
Found above health guidelines |
Found above legal limit |
|
|---|---|---|---|
| States | 1 |
- |
- |
| Water utilities | 7 |
- |
- |
| People Served | 20,906 |
- |
- |
Dichloroiodomethane Exposure by State
Water utilities in 1 states have reported detecting Dichloroiodomethane in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.
| State | Water Suppliers with Dichloroiodomethane contamination | |
|---|---|---|
| Systems | Population | |
| Texas | 7 | 20,906 |
| Total | 7 | 20,906 |
The Most Polluted Communities
7 water utilities reported detecting Dichloroiodomethane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Dichloroiodomethane level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | River Bend Water Services Inc Matagorda, TX | 120 | 1 of 1 | 1.7 ppb (1.7 ppb) |
| 2 | Caney Creek Haven Club Water System Bay City, TX | 288 | 1 of 1 | 1.5 ppb (1.5 ppb) |
| 3 | City of Gladewater Gladewater, TX | 1,824 | 1 of 1 | 1.4 ppb (1.4 ppb) |
| 4 | Village of Surfside Beach Freeport, TX | 713 | 2 of 2 | 1.04 ppb (0.88 to 1.2 ppb) |
| 5 | Tbcd Winnie Stowell Anahuac, TX | 5,445 | 1 of 1 | 1 ppb (1 ppb) |
| 6 | City of Seabrook Seabrook, TX | 2,850 | 1 of 1 | 1 ppb (1 ppb) |
| 7 | North Central Texas Municipal Water Authority Munday, TX | 9,666 | 1 of 1 | 0.6 ppb (0.6 ppb) |
Testing Summary for Dichloroiodomethane
| Are tests routinely required for Dichloroiodomethane by federal law? | No |
| Water suppliers reporting tests for Dichloroiodomethane (2004-2007): | 10 of 47,576 |
| Average testing rate for water supplier reporting tests (2004-2007): | 0.3 per year |