Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Uranium

Baton Rouge Water Company

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.

 

238

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND80ND
2013ND580ND
2014ND680ND
2015ND380ND
2016ND620ND
2017ND40ND

pCi/L = picocuries per liter

State and national drinking water standards and health guidelines

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

Date Lab ID Result
2012-07-09AD67296ND
2012-07-09AD67301ND
2012-07-09AD67296ND
2012-07-09AD67301ND
2012-10-22AD72417ND
2012-10-22AD72417ND
2012-11-19AD73345ND
2012-11-19AD73345ND
2013-01-14AD74702ND
2013-01-14AD74707ND
2013-01-14AD74712ND
2013-01-14AD74702ND
2013-01-14AD74707ND
2013-01-14AD74712ND
2013-01-28AD75004ND
2013-01-28AD75009ND
2013-01-28AD75014ND
2013-01-28AD75019ND
2013-01-28AD75024ND
2013-01-28AD75004ND
2013-01-28AD75009ND
2013-01-28AD75014ND
2013-01-28AD75019ND
2013-01-28AD75024ND
2013-02-04AD75262ND
2013-02-04AD75267ND
2013-02-04AD75272ND
2013-02-04AD75277ND
2013-02-04AD75282ND
2013-02-04AD75262ND
2013-02-04AD75267ND
2013-02-04AD75272ND
2013-02-04AD75277ND
2013-02-04AD75282ND
2013-03-11AD75922ND
2013-03-11AD75927ND
2013-03-11AD75932ND
2013-03-11AD75937ND
2013-03-11AD75942ND
2013-03-11AD75922ND
2013-03-11AD75927ND
2013-03-11AD75932ND
2013-03-11AD75937ND
2013-03-11AD75942ND
2013-04-01AD76493ND
2013-04-01AD76498ND
2013-04-01AD76503ND
2013-04-01AD76493ND
2013-04-01AD76498ND
2013-04-01AD76503ND
2013-04-08AD76702ND
2013-04-08AD76702ND
2013-04-15AD76915ND
2013-04-15AD76920ND
2013-04-15AD76925ND
2013-04-15AD76930ND
2013-04-15AD76935ND
2013-04-15AD76915ND
2013-04-15AD76920ND
2013-04-15AD76925ND
2013-04-15AD76930ND
2013-04-15AD76935ND
2013-04-29AD77231ND
2013-04-29AD77231ND
2013-09-09AD83623ND
2013-09-09AD83623ND
2014-01-13AD88256ND
2014-01-13AD88261ND
2014-01-13AD88266ND
2014-01-13AD88271ND
2014-01-13AD88276ND
2014-01-13AD88256ND
2014-01-13AD88261ND
2014-01-13AD88266ND
2014-01-13AD88271ND
2014-01-13AD88276ND
2014-05-05AD91108ND
2014-05-05AD91113ND
2014-05-05AD91118ND
2014-05-05AD91123ND
2014-05-05AD91128ND
2014-05-05AD91108ND
2014-05-05AD91113ND
2014-05-05AD91118ND
2014-05-05AD91123ND
2014-05-05AD91128ND
2014-05-12AD91411ND
2014-05-12AD91416ND
2014-05-12AD91421ND
2014-05-12AD91426ND
2014-05-12AD91431ND
2014-05-12AD91411ND
2014-05-12AD91416ND
2014-05-12AD91421ND
2014-05-12AD91426ND
2014-05-12AD91431ND
2014-05-19AD91628ND
2014-05-19AD91633ND
2014-05-19AD91638ND
2014-05-19AD91643ND
2014-05-19AD91648ND
2014-05-19AD91628ND
2014-05-19AD91633ND
2014-05-19AD91638ND
2014-05-19AD91643ND
2014-05-19AD91648ND
2014-06-09AD92068ND
2014-06-09AD92068ND
2014-07-14AD93441ND
2014-07-14AD93446ND
2014-07-14AD93451ND
2014-07-14AD93456ND
2014-07-14AD93441ND
2014-07-14AD93446ND
2014-07-14AD93451ND
2014-07-14AD93456ND
2014-07-21AD93986ND
2014-07-21AD93991ND
2014-07-21AD93996ND
2014-07-21AD94001ND
2014-07-21AD94006ND
2014-07-21AD93986ND
2014-07-21AD93991ND
2014-07-21AD93996ND
2014-07-21AD94001ND
2014-07-21AD94006ND
2014-08-11AD95142ND
2014-08-11AD95147ND
2014-08-11AD95152ND
2014-08-11AD95162ND
2014-08-11AD95142ND
2014-08-11AD95147ND
2014-08-11AD95152ND
2014-08-11AD95162ND
2015-07-0635196455004ND
2015-07-0635196455005ND
2015-07-0635196455004ND
2015-07-0635196455005ND
2015-08-0335200997001ND
2015-08-0335200997002ND
2015-08-0335200997003ND
2015-08-0335200997004ND
2015-08-0335200997005ND
2015-08-0335200997001ND
2015-08-0335200997002ND
2015-08-0335200997003ND
2015-08-0335200997004ND
2015-08-0335200997005ND
2015-08-1735203438001ND
2015-08-1735203438002ND
2015-08-1735203438001ND
2015-08-1735203438002ND
2015-08-3135205974004ND
2015-08-3135205974005ND
2015-08-3135205974004ND
2015-08-3135205974005ND
2015-11-0235215110001ND
2015-11-0235215110002ND
2015-11-0235215110003ND
2015-11-0235215110001ND
2015-11-0235215110002ND
2015-11-0235215110003ND
2015-11-3035219066001ND
2015-11-3035219066002ND
2015-11-3035219066003ND
2015-11-3035219066004ND
2015-11-3035219066005ND
2015-11-3035219066001ND
2015-11-3035219066002ND
2015-11-3035219066003ND
2015-11-3035219066004ND
2015-11-3035219066005ND
2016-01-1235225030004ND
2016-01-1235225030005ND
2016-01-1235225030004ND
2016-01-1235225030005ND
2016-01-2535227129001ND
2016-01-2535227129002ND
2016-01-2535227129003ND
2016-01-2535227129004ND
2016-01-2535227129005ND
2016-01-2535227129001ND
2016-01-2535227129002ND
2016-01-2535227129003ND
2016-01-2535227129004ND
2016-01-2535227129005ND
2016-02-2935232145001ND
2016-02-2935232145002ND
2016-02-2935232145003ND
2016-02-2935232145001ND
2016-02-2935232145002ND
2016-02-2935232145003ND
2016-04-1135239236001ND
2016-04-1135239236002ND
2016-04-1135239236003ND
2016-04-1135239236004ND
2016-04-1135239236001ND
2016-04-1135239236002ND
2016-04-1135239236003ND
2016-04-1135239236004ND
2016-04-2035240674001ND
2016-04-2035240674002ND
2016-04-2035240674001ND
2016-04-2035240674002ND
2016-04-2735241963001ND
2016-04-2735241963002ND
2016-04-2735241963003ND
2016-04-2735241963004ND
2016-04-2735241963005ND
2016-04-2735241963001ND
2016-04-2735241963002ND
2016-04-2735241963003ND
2016-04-2735241963004ND
2016-04-2735241963005ND
2016-08-2235261432001ND
2016-08-2235261432002ND
2016-08-2235261432001ND
2016-08-2235261432002ND
2016-08-3035263152001ND
2016-08-3035263152001ND
2016-09-1435265890005ND
2016-09-1435265890005ND
2016-09-2035267198001ND
2016-09-2035267198002ND
2016-09-2035267198003ND
2016-09-2035267198004ND
2016-09-2035267198005ND
2016-09-2035267198001ND
2016-09-2035267198002ND
2016-09-2035267198003ND
2016-09-2035267198004ND
2016-09-2035267198005ND
2016-10-0535270134001ND
2016-10-0535270134001ND
2017-11-28AE20079ND
2017-11-28AE20079ND
2017-12-05AE20104ND
2017-12-05AE20104ND