Know Your Environment. Protect Your Health.

Arsenic

Baton Rouge Water Company

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

 

258

Samples

0

Samples exceeding legal limit (MCL)

6

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND360ND
20190.0311 ppb724ND - 0.560 ppb
2020ND440ND
2021ND330ND
20220.0303 ppb331ND - 1.000 ppb
20230.0275 ppb401ND - 1.10 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.004 ppb

The EWG Health Guideline of 0.004 ppb for arsenic 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. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL): 10 ppb

The legal limit for arsenic, established in 2001, was based on costs for arsenic removal, as calculated at the time that the standard was set. This limit does not fully protect against the risk of cancer due to arsenic exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-17AE21373ND
2018-04-17AE21376ND
2018-04-17AE21373ND
2018-04-17AE21376ND
2018-09-20B1804419-001ND
2018-09-20B1804419-002ND
2018-09-20B1804419-003ND
2018-09-20B1804419-004ND
2018-09-20B1804419-001ND
2018-09-20B1804419-002ND
2018-09-20B1804419-003ND
2018-09-20B1804419-004ND
2018-09-24B1804492-001ND
2018-09-24B1804492-002ND
2018-09-24B1804492-003ND
2018-09-24B1804492-004ND
2018-09-24B1804492-001ND
2018-09-24B1804492-002ND
2018-09-24B1804492-003ND
2018-09-24B1804492-004ND
2018-12-03B1805681-001ND
2018-12-03B1805681-002ND
2018-12-03B1805681-003ND
2018-12-03B1805681-001ND
2018-12-03B1805681-002ND
2018-12-03B1805681-003ND
2018-12-04B1805718-001ND
2018-12-04B1805718-002ND
2018-12-04B1805718-001ND
2018-12-04B1805718-002ND
2018-12-11B1805886-001ND
2018-12-11B1805886-002ND
2018-12-11B1805886-003ND
2018-12-11B1805886-001ND
2018-12-11B1805886-002ND
2018-12-11B1805886-003ND
2019-01-23B1900320-001ND
2019-01-23B1900320-002ND
2019-01-23B1900320-003ND
2019-01-23B1900320-001ND
2019-01-23B1900320-002ND
2019-01-23B1900320-003ND
2019-02-14B1900648-001ND
2019-02-14B1900648-002ND
2019-02-14B1900648-001ND
2019-02-14B1900648-002ND
2019-03-14B1901011-001ND
2019-03-14B1901011-002ND
2019-03-14B1901011-001ND
2019-03-14B1901011-002ND
2019-03-18B1901046-001ND
2019-03-18B1901046-002ND
2019-03-18B1901046-003ND
2019-03-18B1901046-004ND
2019-03-18B1901046-001ND
2019-03-18B1901046-002ND
2019-03-18B1901046-003ND
2019-03-18B1901046-004ND
2019-03-25B1901118-001ND
2019-03-25B1901118-001ND
2019-04-09B1901403-001ND
2019-04-09B1901403-002ND
2019-04-09B1901403-003ND
2019-04-09B1901403-001ND
2019-04-09B1901403-002ND
2019-04-09B1901403-003ND
2019-04-10B1901440-001ND
2019-04-10B1901440-002ND
2019-04-10B1901440-001ND
2019-04-10B1901440-002ND
2019-04-24B1901656-001ND
2019-04-24B1901656-002ND
2019-04-24B1901656-001ND
2019-04-24B1901656-002ND
2019-04-29354648170010.560 ppb
2019-04-29354648170020.560 ppb
2019-04-29B1901696-001ND
2019-04-29B1901696-002ND
2019-04-29354648170010.560 ppb
2019-04-29354648170020.560 ppb
2019-04-29B1901696-001ND
2019-04-29B1901696-002ND
2019-05-16B1902022-001ND
2019-05-16B1902022-002ND
2019-05-16B1902022-001ND
2019-05-16B1902022-002ND
2019-08-21B1903611-001ND
2019-08-21B1903611-002ND
2019-08-21B1903611-003ND
2019-08-21B1903611-001ND
2019-08-21B1903611-002ND
2019-08-21B1903611-003ND
2019-10-07B1904469-001ND
2019-10-07B1904469-001ND
2019-10-28B1904779-001ND
2019-10-28B1904779-001ND
2019-11-20B1905155-001ND
2019-11-20B1905155-001ND
2019-12-03B1905405-001ND
2019-12-03B1905405-002ND
2019-12-03B1905405-003ND
2019-12-03B1905405-001ND
2019-12-03B1905405-002ND
2019-12-03B1905405-003ND
2019-12-04B1905437-001ND
2019-12-04B1905437-002ND
2019-12-04B1905437-001ND
2019-12-04B1905437-002ND
2020-01-09B2000129-001ND
2020-01-16B2000193-001ND
2020-01-16B2000193-002ND
2020-02-10B2000621-001ND
2020-04-14B2001715-001ND
2020-04-14B2001715-002ND
2020-04-14B2001715-003ND
2020-04-27B2001939-001ND
2020-04-27B2001939-002ND
2020-04-27B2001939-003ND
2020-04-28B2001982-001ND
2020-04-28B2001982-002ND
2020-05-04B2002169-001ND
2020-05-04B2002169-002ND
2020-05-04B2002169-003ND
2020-05-04B2002169-004ND
2020-05-05B2002169-005ND
2020-05-20B2002339-001ND
2020-05-20B2002339-002ND
2020-05-20B2002339-003ND
2020-06-17B2002885-001ND
2020-06-17B2002885-002ND
2020-06-17B2002885-005ND
2020-06-22B2002956-001ND
2020-06-22B2002956-002ND
2020-06-22B2002956-003ND
2020-06-23B2002963-001ND
2020-06-23B2002963-002ND
2020-06-23B2002963-003ND
2020-07-21B2003593-001ND
2020-07-21B2003593-002ND
2020-07-22B2003612-002ND
2020-07-22B2003612-003ND
2020-07-29B2003783-001ND
2020-07-29B2003783-004ND
2020-08-04B2003951-001ND
2020-08-04B2003951-002ND
2020-09-15B2004636-001ND
2020-10-12B2005325-001ND
2020-10-12B2005325-002ND
2020-10-26B2005630-001ND
2020-10-26B2005630-002ND
2020-12-08B2006496-001ND
2020-12-08B2006496-002ND
2021-01-25B2100197-001ND
2021-01-25B2100197-002ND
2021-03-02B2100986-001ND
2021-03-02B2100986-002ND
2021-03-02B2100986-003ND
2021-03-08B2101053-001ND
2021-03-08B2101053-002ND
2021-04-27B2101843-001ND
2021-05-18B2102267-001ND
2021-05-18B2102267-002ND
2021-07-13B2103158-001ND
2021-07-13B2103158-002ND
2021-07-13B2103158-003ND
2021-07-14B2103171-001ND
2021-07-14B2103171-002ND
2021-07-28B2103455-001ND
2021-07-28B2103455-002ND
2021-08-09B2103728-001ND
2021-08-09B2103728-002ND
2021-10-12B2105444-001ND
2021-10-12B2105444-002ND
2021-10-20B2105571-005ND
2021-10-21B2105571-001ND
2021-10-21B2105571-002ND
2021-10-21B2105571-003ND
2021-10-21B2105571-004ND
2021-11-01B2105896-001ND
2021-11-01B2105896-002ND
2021-11-15B2106086-001ND
2021-11-15B2106086-002ND
2021-11-15B2106086-003ND
2021-11-15B2106086-004ND
2021-12-06B2106468-001ND
2022-01-24B2200322-001ND
2022-01-24B2200322-002ND
2022-02-08B2200567-001ND
2022-02-08B2200567-004ND
2022-02-21B2200845-001ND
2022-02-21B2200845-002ND
2022-02-21B2200845-0031.000 ppb
2022-03-14B2201117-001ND
2022-03-14B2201117-002ND
2022-03-14B2201117-003ND
2022-03-14B2201117-004ND
2022-03-14B2201117-005ND
2022-04-18B2201800-001ND
2022-04-18B2201800-002ND
2022-04-18B2201800-003ND
2022-04-18B2201800-004ND
2022-04-18B2201800-005ND
2022-05-02B2202144-001ND
2022-05-02B2202144-002ND
2022-06-20B2202889-001ND
2022-08-18B2203869-001ND
2022-08-18B2203869-003ND
2022-08-18B2203869-004ND
2022-10-25B2205237-001ND
2022-10-25B2205237-003ND
2022-10-25B2205237-004ND
2022-10-25B2205237-005ND
2022-10-25B2205237-006ND
2022-11-16B2205470-001ND
2022-11-17B2205470-002ND
2022-12-05B2205725-001ND
2022-12-05B2205725-002ND
2022-12-05B2205725-003ND
2023-01-11B2300125-001ND
2023-04-10B2301580-001ND
2023-04-10B2301580-002ND
2023-04-10B2301580-003ND
2023-04-10B2301580-004ND
2023-04-10B2301580-005ND
2023-04-17B2301644-001ND
2023-04-17B2301644-002ND
2023-04-17B2301644-003ND
2023-04-17B2301644-004ND
2023-04-17B2301644-005ND
2023-05-02B2301888-001ND
2023-05-02B2301888-002ND
2023-05-02B2301888-0031.10 ppb
2023-05-02B2301888-004ND
2023-05-02B2301888-005ND
2023-06-14B2302423-001ND
2023-06-14B2302423-003ND
2023-06-14B2302423-005ND
2023-06-14B2302423-006ND
2023-06-20B2302506-001ND
2023-06-20B2302506-002ND
2023-06-20B2302506-003ND
2023-06-20B2302507-001ND
2023-06-26B2302633-001ND
2023-06-26B2302633-002ND
2023-07-3135817759002ND
2023-07-31B2303138-001ND
2023-08-29B2303635-001ND
2023-09-19B2303960-001ND
2023-09-19B2303960-002ND
2023-09-19B2303960-003ND
2023-09-19B2303960-004ND
2023-10-11B2304377-001ND
2023-10-11B2304377-002ND
2023-10-11B2304377-003ND
2023-10-11B2304377-004ND
2023-10-11B2304377-005ND
2023-12-13B2305290-001ND
2023-12-13B2305290-002ND