Know Your Environment. Protect Your Health.

Uranium

City of Broussard Water System

NOTE: City of Broussard Water System purchases water from Lafayette Utilities Water System which is required to test for uranium. Sample information shown below was taken by Lafayette Utilities Water System.

Uranium is a known human carcinogen. The federal legal limit for uranium is set at 30 micrograms per liter (corresponding to parts per billion), but utilities can also report uranium in picocuries per liter (pCi/L), which is a measure of radioactivity in water. EWG translated all uranium results to pCi/L using a conversion factor developed by the EPA. With this conversion approach, the limit of 30 ppb corresponds to 20 pCi/L. Drinking water with this much uranium would cause more than 4.6 cancer cases in a population of 100,000. California set a public health goal for uranium of 0.43 pCi/L. Read More.

Multiple forms of uranium can be detected in water, including uranium-234, uranium-235 and uranium-238. Uranium-234 is the most toxic form of uranium for human health.

 

56

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND140ND
2020ND10ND
2021ND10ND
2022ND60ND
2023ND20ND

pCi/L = picocuries per liter

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.43 pCi/L

The EWG Health Guideline of 0.43 pCi/L for uranium was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. Three most common uranium isotopes are U-234, U-235 and U-238. All isotopes of uranium are radioactive, and the total radioactivity depends on the ratio of isotopes. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL): 20 pCi/L

pCi/L = picocuries per liter

All test results

NOTE: City of Broussard Water System purchases water from Lafayette Utilities Water System which is required to test for uranium. Sample information shown below was taken by Lafayette Utilities Water System.

Date Lab ID Result
2018-03-05AE20864ND
2018-03-05AE20858ND
2018-03-05AE20855ND
2018-03-05AE20861ND
2018-03-05AE20864ND
2018-03-05AE20867ND
2018-03-05AE20861ND
2018-03-05AE20858ND
2018-03-05AE20855ND
2018-03-05AE20867ND
2018-04-30AE21621ND
2018-04-30AE21621ND
2018-05-14AE21747ND
2018-05-14AE21747ND
2018-06-18AE21918ND
2018-06-18AE21918ND
2018-06-19AE21921ND
2018-06-19AE21924ND
2018-06-19AE21921ND
2018-06-19AE21924ND
2019-01-14B1900254-002ND
2019-01-14B1900254-001ND
2019-01-14B1900254-001ND
2019-01-14B1900254-002ND
2019-08-12B1903460-005ND
2019-08-12B1903460-004ND
2019-08-12B1903460-003ND
2019-08-12B1903460-002ND
2019-08-12B1903460-005ND
2019-08-12B1903460-004ND
2019-08-12B1903460-003ND
2019-08-12B1903460-002ND
2019-08-12B1903460-001ND
2019-08-12B1903460-001ND
2020-07-20B2003551-001ND
2020-07-20B2003551-002ND
2020-07-20B2003551-003ND
2021-02-08B2100522-001ND
2021-02-08B2100522-005ND
2021-02-08B2100522-004ND
2021-02-08B2100522-003ND
2021-02-08B2100522-002ND
2021-06-21B2102780-005ND
2021-06-21B2102780-004ND
2021-06-21B2102780-003ND
2021-06-21B2102780-002ND
2021-06-21B2102780-001ND
2022-05-23B2202455-001ND
2022-05-23B2202455-002ND
2022-05-23B2202455-003ND
2022-05-23B2202455-004ND
2022-05-23B2202455-005ND
2022-05-23B2202455-006ND
2023-05-22B2302104-001ND
2023-05-22B2302104-002ND
2023-05-22B2302104-003ND