The Power of Information

National Drinking Water Database

Combined Uranium (mg/L) in Texas

Uranium is a radioactive element commonly found in most rocks; processed uranium ore is used for power generation and weapons manufacture. [read more]

The Most Polluted Communities in Texas

143 water utilities reported detecting Combined Uranium (mg/L) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Combined Uranium (mg/L) level

RankSystem Population Served Positive test results of total reported tests Average Level
1Utility Development & Research
Riviera, TX
6307 of 771.81 ppb
(65.8 to 81.6 ppb)
2Rio Brazos Water System
818 of 866.19 ppb
(49.8 to 84.1 ppb)
3Pecan Grove Mobile Home Park
West Monroe, TX
1153 of 361.97 ppb
(56.9 to 65 ppb)
4Valley View Mobile Home Park
Midland, TX
503 of 359.23 ppb
(53 to 65.6 ppb)
5Valley Estates
Lubbock, TX
702 of 253.65 ppb
(52.4 to 54.9 ppb)
6Jim Wells County Fwsd 1
Ben Bolt, TX
1,5574 of 453.05 ppb
(42.9 to 63 ppb)
7City of Shallowater
Shallowater, TX
2,0864 of 450.53 ppb
(24.9 to 74 ppb)
8Heron Lakes Estates
Houston, TX
7933 of 347.2 ppb
(42.8 to 51.6 ppb)
9Suburban Mobile Home Park 2
Honolulu, TX
12010 of 1046.31 ppb
(44.1 to 48.4 ppb)
10Golden Acres Water Co
Houston, TX
1809 of 944.52 ppb
(40.2 to 53.7 ppb)

Health Based Limits for Combined Uranium (mg/L)

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
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.0.5 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.20 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.30 ppb

Violation Summary for Combined Uranium (mg/L) in Texas

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

Violation TypeNumber of Violations
Over maximum contaminant level, Average39
Over maximum contaminant level, Single Sample3