Dibromomethane
Status: No national drinking water standard exists
Dibromomethane is an industrial chemical and is also formed when disinfectants like chlorine are added to drinking water.
2017-2019:
FOUND
17
states detected
147
utilities detected
1.7 million
people served
Health concerns for dibromomethane
Harm to the central nervous system
Harm to the liver
Harm to the kidney
Change to blood cells
States reporting dibromomethane in drinking water
| UTILITIES WITH CONTAMINATION | |||
|---|---|---|---|
| State | Utilities | People Served | |
| Texas | 68 | 972,231 | |
| California | 13 | 269,290 | |
| Massachusetts | 7 | 124,082 | |
| New York | 20 | 84,385 | |
| Alabama | 8 | 76,600 | |
| Wisconsin | 6 | 46,841 | |
| Kansas | 1 | 39,321 | |
| Georgia | 3 | 28,428 | |
| Ohio | 4 | 23,624 | |
| Arkansas | 10 | 16,391 | |
| New Hampshire | 1 | 14,000 | |
| Virginia | 1 | 7,872 | |
| West Virginia | 1 | 863 | |
| Iowa | 1 | 353 | |
| New Jersey | 1 | 83 | |
| Montana | 1 | 73 | |
| Missouri | 1 | 30 | |
MORE
LESS
Filtering technologies that reduce dibromomethane
Activated Carbon
Reverse Osmosis
Utilities with the highest amounts of dibromomethane, 2017-2019
ALL UTILITIES
LARGE UTILITIES
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Mcdowell County Psd Berwind | Welch, WV | 1 of 1 | 5.31 ppb | 863 |
| Naval Support Facility, Indian Head | Indian Head, MD | 1 of 1 | 4.60 ppb | 3,321 |
| Hartland Colony | Havre, MT | 1 of 2 | 3.30 ppb | 73 |
| Mauka | Fort Worth, TX | 2 of 7 | 1.96 ppb | 1,020 |
| Thousand Oaks Water Department | Thousand Oaks, CA | 26 of 47 | 1.54 ppb | 50,000 |
| California Water Service Company - Westlake | San Jose, CA | 26 of 47 | 1.54 ppb | 19,451 |
| Ventura County Waterworks District No. 17 - Bell Canyon | Moorpark, CA | 26 of 47 | 1.54 ppb | 2,049 |
| Solano Verde Mutual Water Company | Camarillo, CA | 26 of 47 | 1.54 ppb | 100 |
| Cal American Water Company | Newbury Park, CA | 26 of 47 | 1.54 ppb | 61,206 |
| Oak Park Water Service | Ventura, CA | 26 of 47 | 1.54 ppb | 12,200 |
| Calleguas Municipal Water District* | Thousand Oaks, CA | 26 of 47 | 1.54 ppb | 0 |
| Lake Sherwood Community Services District | Moorpark, CA | 26 of 47 | 1.54 ppb | 1,527 |
| Cal American Water Company - Las Posas Estates | Newbury Park, CA | 26 of 47 | 1.54 ppb | 1,800 |
| Tuskegee Utilities Board* | Tuskegee, AL | 2 of 7 | 1.46 ppb | 12,510 |
| Gulf Stream Manor Water System | Lake Charles, LA | 2 of 4 | 1.40 ppb | 1,500 |
| Country View Apartments | Pembroke, ME | 1 of 1 | 1.30 ppb | 40 |
| City of Miles | Miles, TX | 5 of 9 | 1.24 ppb | 870 |
| Huttig Waterworks | Huttig, AR | 1 of 11 | 1.23 ppb | 733 |
| Lomira Waterworks | Lomira, WI | 6 of 7 | 0.907 ppb | 2,461 |
| Salem Water Department | Salem, MA | 1 of 1 | 0.870 ppb | 42,869 |
| Beverly Water Department | Beverly, MA | 1 of 1 | 0.870 ppb | 43,316 |
| Salem Beverly Water Supply Board* | Beverly, MA | 1 of 1 | 0.870 ppb | 0 |
| Galveston County WCID 1 | Dickinson, TX | 9 of 21 | 0.848 ppb | 29,280 |
| Matagorda Dunes Subdivision | Austin, TX | 3 of 7 | 0.843 ppb | 426 |
| Naval Support Facility, Dahlgren | Dahlgren, VA | 1 of 1 | 0.780 ppb | 7,872 |
| Williams Water Supply | Williams, IA | 4 of 4 | 0.725 ppb | 353 |
| City of Rochester | Rochester, TX | 1 of 6 | 0.705 ppb | 250 |
| West Monroe Water System | West Monroe, LA | 4 of 12 | 0.672 ppb | 15,930 |
| Village of Surfside Beach | Freeport, TX | 4 of 18 | 0.661 ppb | 3,477 |
| Commodore Cove Improvement District | Freeport, TX | 2 of 6 | 0.633 ppb | 495 |
| Forest Junction Pub Util | Forest Junction, WI | 4 of 4 | 0.613 ppb | 320 |
| Northgate Mobile Home Park 1 | Odessa, TX | 5 of 11 | 0.608 ppb | 126 |
| Carlisle City Public Water System | Carlisle, OH | 1 of 7 | 0.566 ppb | 4,897 |
| Franklin Public Water System* | Franklin, OH | 1 of 7 | 0.566 ppb | 11,396 |
| Ausable Heights Water System | Keeseville, NY | 1 of 1 | 0.500 ppb | 46 |
| New London Water | Strong, AR | 1 of 8 | 0.486 ppb | 802 |
| Hurley Waterworks | Hurley, WI | 4 of 4 | 0.468 ppb | 1,515 |
| Holland Tn Sanitary District | Town Of Holland, WI | 1 of 1 | 0.460 ppb | 495 |
| Red Creek Municipal Utility District | San Angelo, TX | 1 of 3 | 0.450 ppb | 915 |
| Marianna* | Marianna, AR | 1 of 2 | 0.425 ppb | 3,794 |
| Lee County Water* | Marianna, AR | 1 of 2 | 0.425 ppb | 4,813 |
| Kirkmont Municipal Utility District* | Houston, TX | 2 of 6 | 0.417 ppb | 2,283 |
| Trinity Rural Water Supply Corporation 3 | Trinity, TX | 2 of 6 | 0.403 ppb | 1,219 |
| Twin Buttes Water System | San Angelo, TX | 1 of 3 | 0.400 ppb | 35 |
| Bell Water | New Waverly, TX | 3 of 5 | 0.394 ppb | 59 |
| Glenerie Water District | Lake Katrine, NY | 3 of 11 | 0.386 ppb | 410 |
| Ulster Water District* | Lake Katrine, NY | 3 of 11 | 0.386 ppb | 6,190 |
| Cherry Hill Water District* | Lake Katrine, NY | 3 of 11 | 0.386 ppb | 280 |
| Shellman | Shellman, GA | 1 of 3 | 0.373 ppb | 1,084 |
| Town of Quintana | Quintana, TX | 1 of 5 | 0.360 ppb | 231 |
* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Dibromomethane, but it likely has the contaminant in its water supply.
| Utility | Location | Tests | Average level | People served |
|---|---|---|---|---|
| Oak Park Water Service | Ventura, CA | 26 of 47 | 1.54 ppb | 12,200 |
| Cal American Water Company | Newbury Park, CA | 26 of 47 | 1.54 ppb | 61,206 |
| Thousand Oaks Water Department | Thousand Oaks, CA | 26 of 47 | 1.54 ppb | 50,000 |
| California Water Service Company - Westlake | San Jose, CA | 26 of 47 | 1.54 ppb | 19,451 |
| Tuskegee Utilities Board* | Tuskegee, AL | 2 of 7 | 1.46 ppb | 12,510 |
| Salem Water Department | Salem, MA | 1 of 1 | 0.870 ppb | 42,869 |
| Beverly Water Department | Beverly, MA | 1 of 1 | 0.870 ppb | 43,316 |
| Galveston County WCID 1 | Dickinson, TX | 9 of 21 | 0.848 ppb | 29,280 |
| West Monroe Water System | West Monroe, LA | 4 of 12 | 0.672 ppb | 15,930 |
| Franklin Public Water System* | Franklin, OH | 1 of 7 | 0.566 ppb | 11,396 |
| Perry | Perry, GA | 1 of 4 | 0.300 ppb | 28,132 |
| Saratoga Springs City* | Saratoga Springs, NY | 4 of 14 | 0.244 ppb | 35,900 |
| California Water Service - Bear Gulch | San Jose, CA | 2 of 8 | 0.228 ppb | 58,432 |
| Danvers Water Department* | Middleton, MA | 1 of 17 | 0.137 ppb | 26,493 |
| Lake Cities Municipal Utility Authority | Lake Dallas, TX | 1 of 5 | 0.126 ppb | 16,533 |
| Town of Discovery Bay | Discovery Bay, CA | 1 of 5 | 0.120 ppb | 13,500 |
| Laguna Madre Water District | Port Isabel, TX | 1 of 11 | 0.109 ppb | 19,908 |
| Atlantic City Municipal Utilities Authority | Atlantic City, NJ | 3 of 22 | 0.109 ppb | 152,415 |
| City of Denison* | Denison, TX | 1 of 10 | 0.108 ppb | 22,682 |
| City of Liberal | Liberal, KS | 1 of 9 | 0.103 ppb | 39,321 |
| Hanover Water Department | Hanover, MA | 1 of 15 | 0.0867 ppb | 14,899 |
| Opelika Utilities* | Opelika, AL | 1 of 8 | 0.0788 ppb | 43,263 |
| Wellborn SUD | Wellborn, TX | 1 of 28 | 0.0786 ppb | 25,677 |
| DCWA Knightsville | Summerville, SC | 1 of 9 | 0.0689 ppb | 23,513 |
| Fond Du Lac Waterworks | Fond Du Lac, WI | 4 of 34 | 0.0629 ppb | 42,000 |
| Lackland Air Force Base | Jbsa Lackland, TX | 1 of 23 | 0.0609 ppb | 20,907 |
| City of Crowley | Crowley, TX | 1 of 18 | 0.0478 ppb | 14,800 |
| City of Tracy | Tracy, CA | 3 of 42 | 0.0462 ppb | 82,000 |
| Elsinore Valley Municipal Water District* | Lake Elsinore, CA | 1 of 52 | 0.0365 ppb | 142,264 |
| City of Granbury* | Granbury, TX | 3 of 72 | 0.0300 ppb | 11,300 |
| Chatham Water Department | Chatham, MA | 1 of 18 | 0.0294 ppb | 30,000 |
| Camp Pendleton (North) | Camp Pendleton, CA | 3 of 90 | 0.0293 ppb | 15,600 |
| Plainview Municipal Water System | Plainview, TX | 2 of 49 | 0.0269 ppb | 20,767 |
| Seabrook Water Department | Seabrook, NH | 1 of 31 | 0.0258 ppb | 14,000 |
| Oxnard Water Department* | Oxnard, CA | 1 of 34 | 0.0226 ppb | 200,855 |
| Swansea Water District | Swansea, MA | 1 of 34 | 0.0206 ppb | 17,358 |
| Pennsville Twsp. Water Depart. | Pennsville, NJ | 3 of 25 | 0.0192 ppb | 13,500 |
| Wallingford Water Department | Wallingford, CT | 1 of 35 | 0.0143 ppb | 37,267 |
| Glassboro Water Department* | Glassboro, NJ | 1 of 10 | 0.0110 ppb | 24,244 |
| Shrewsbury Water Department | Shrewsbury, MA | 1 of 58 | 0.0109 ppb | 35,608 |
| El Paso Water Utilities* | El Paso, TX | 1 of 126 | 0.00444 ppb | 672,538 |
| Lower Valley Water District | Clint, TX | 1 of 126 | 0.00444 ppb | 53,865 |
| East Biggs Water System | San Dimas, TX | 1 of 126 | 0.00444 ppb | 15,000 |
| WA of Great Neck North | Great Neck, NY | 1 of 872 | 0.00356 ppb | 31,400 |
| Town of Hempstead Water Department | East Meadow, NY | 1 of 1,386 | 0.000851 ppb | 110,000 |
* This water utility supplies finished drinking water to at least one other water utility. The purchasing utility is not required to test for or report Dibromomethane, but it likely has the contaminant in its water supply.