Cyanide

Baton Rouge Water Company

Cyanide is a toxic chemical that causes central nervous system and thyroid toxicity. Water contamination is generally the result of metal mining and chemical industry waste, runoff from agriculture and road salts used for melting ice.

MORE ABOUT THIS CONTAMINANT

398

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	ND	68	0	ND
2015	ND	40	0	ND
2016	0.185 ppb	94	2	ND - 8.70 ppb
2017	ND	74	0	ND
2018	ND	54	0	ND
2019	ND	68	0	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 150 ppb

The EWG Health Guideline of 150 ppb for cyanide 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 harm to the brain and nervous system.

EPA Maximum Contaminant
Level (MCL) 200 ppb

The legal limit for cyanide, established in 1992, was based on a 1955 toxicity study conducted in laboratory animals. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-13	AD88255	ND
2014-01-13	AD88260	ND
2014-01-13	AD88265	ND
2014-01-13	AD88270	ND
2014-01-13	AD88275	ND
2014-01-13	AD88255	ND
2014-01-13	AD88260	ND
2014-01-13	AD88265	ND
2014-01-13	AD88270	ND
2014-01-13	AD88275	ND
2014-05-05	AD91107	ND
2014-05-05	AD91112	ND
2014-05-05	AD91117	ND
2014-05-05	AD91122	ND
2014-05-05	AD91127	ND
2014-05-05	AD91107	ND
2014-05-05	AD91112	ND
2014-05-05	AD91117	ND
2014-05-05	AD91122	ND
2014-05-05	AD91127	ND
2014-05-12	AD91410	ND
2014-05-12	AD91415	ND
2014-05-12	AD91420	ND
2014-05-12	AD91425	ND
2014-05-12	AD91430	ND
2014-05-12	AD91410	ND
2014-05-12	AD91415	ND
2014-05-12	AD91420	ND
2014-05-12	AD91425	ND
2014-05-12	AD91430	ND
2014-05-19	AD91627	ND
2014-05-19	AD91632	ND
2014-05-19	AD91637	ND
2014-05-19	AD91642	ND
2014-05-19	AD91647	ND
2014-05-19	AD91627	ND
2014-05-19	AD91632	ND
2014-05-19	AD91637	ND
2014-05-19	AD91642	ND
2014-05-19	AD91647	ND
2014-06-09	AD92067	ND
2014-06-09	AD92067	ND
2014-07-14	AD93440	ND
2014-07-14	AD93445	ND
2014-07-14	AD93450	ND
2014-07-14	AD93455	ND
2014-07-14	AD93440	ND
2014-07-14	AD93445	ND
2014-07-14	AD93450	ND
2014-07-14	AD93455	ND
2014-07-21	AD93985	ND
2014-07-21	AD93990	ND
2014-07-21	AD93995	ND
2014-07-21	AD94000	ND
2014-07-21	AD94005	ND
2014-07-21	AD93985	ND
2014-07-21	AD93990	ND
2014-07-21	AD93995	ND
2014-07-21	AD94000	ND
2014-07-21	AD94005	ND
2014-08-11	AD95141	ND
2014-08-11	AD95146	ND
2014-08-11	AD95151	ND
2014-08-11	AD95161	ND
2014-08-11	AD95141	ND
2014-08-11	AD95146	ND
2014-08-11	AD95151	ND
2014-08-11	AD95161	ND
2015-03-30	35181845005	ND
2015-03-30	35181845005	ND
2015-07-06	35196455004	ND
2015-07-06	35196455005	ND
2015-07-06	35196455004	ND
2015-07-06	35196455005	ND
2015-08-03	35200997001	ND
2015-08-03	35200997002	ND
2015-08-03	35200997003	ND
2015-08-03	35200997004	ND
2015-08-03	35200997005	ND
2015-08-03	35200997001	ND
2015-08-03	35200997002	ND
2015-08-03	35200997003	ND
2015-08-03	35200997004	ND
2015-08-03	35200997005	ND
2015-08-17	35203438001	ND
2015-08-17	35203438002	ND
2015-08-17	35203438001	ND
2015-08-17	35203438002	ND
2015-08-31	35205974004	ND
2015-08-31	35205974005	ND
2015-08-31	35205974004	ND
2015-08-31	35205974005	ND
2015-11-02	35215110001	ND
2015-11-02	35215110002	ND
2015-11-02	35215110003	ND
2015-11-02	35215110001	ND
2015-11-02	35215110002	ND
2015-11-02	35215110003	ND
2015-11-30	35219066001	ND
2015-11-30	35219066002	ND
2015-11-30	35219066003	ND
2015-11-30	35219066004	ND
2015-11-30	35219066005	ND
2015-11-30	35219066001	ND
2015-11-30	35219066002	ND
2015-11-30	35219066003	ND
2015-11-30	35219066004	ND
2015-11-30	35219066005	ND
2016-01-12	35225030004	ND
2016-01-12	35225030005	ND
2016-01-12	35225030004	ND
2016-01-12	35225030005	ND
2016-01-25	35227129001	ND
2016-01-25	35227129002	ND
2016-01-25	35227129003	ND
2016-01-25	35227129004	ND
2016-01-25	35227129005	ND
2016-01-25	35227129001	ND
2016-01-25	35227129002	ND
2016-01-25	35227129003	ND
2016-01-25	35227129004	ND
2016-01-25	35227129005	ND
2016-02-29	35232145001	ND
2016-02-29	35232145002	ND
2016-02-29	35232145003	ND
2016-02-29	35232145001	ND
2016-02-29	35232145002	ND
2016-02-29	35232145003	ND
2016-04-11	35239236001	ND
2016-04-11	35239236002	ND
2016-04-11	35239236003	ND
2016-04-11	35239236004	ND
2016-04-11	35239236001	ND
2016-04-11	35239236002	ND
2016-04-11	35239236003	ND
2016-04-11	35239236004	ND
2016-04-20	35240674001	8.70 ppb
2016-04-20	35240674002	ND
2016-04-20	35240674001	8.70 ppb
2016-04-20	35240674002	ND
2016-04-27	35241963001	ND
2016-04-27	35241963002	ND
2016-04-27	35241963003	ND
2016-04-27	35241963004	ND
2016-04-27	35241963005	ND
2016-04-27	35241963001	ND
2016-04-27	35241963002	ND
2016-04-27	35241963003	ND
2016-04-27	35241963004	ND
2016-04-27	35241963005	ND
2016-05-03	AE06239	ND
2016-05-03	AE06243	ND
2016-05-03	AE06247	ND
2016-05-03	AE06251	ND
2016-05-03	AE06255	ND
2016-05-03	AE06239	ND
2016-05-03	AE06243	ND
2016-05-03	AE06247	ND
2016-05-03	AE06251	ND
2016-05-03	AE06255	ND
2016-05-23	AE06386	ND
2016-05-23	AE06390	ND
2016-05-23	AE06394	ND
2016-05-23	AE06398	ND
2016-05-23	AE06402	ND
2016-05-23	AE06386	ND
2016-05-23	AE06390	ND
2016-05-23	AE06394	ND
2016-05-23	AE06398	ND
2016-05-23	AE06402	ND
2016-06-08	AE06574	ND
2016-06-08	AE06578	ND
2016-06-08	AE06590	ND
2016-06-08	AE06574	ND
2016-06-08	AE06578	ND
2016-06-08	AE06590	ND
2016-06-15	AE06722	ND
2016-06-15	AE06726	ND
2016-06-15	AE06730	ND
2016-06-15	AE06722	ND
2016-06-15	AE06726	ND
2016-06-15	AE06730	ND
2016-08-22	35261432001	ND
2016-08-22	35261432002	ND
2016-08-22	35261432001	ND
2016-08-22	35261432002	ND
2016-08-30	35263152001	ND
2016-08-30	35263152001	ND
2016-09-14	35265890005	ND
2016-09-14	35265890005	ND
2016-09-20	35267198001	ND
2016-09-20	35267198002	ND
2016-09-20	35267198003	ND
2016-09-20	35267198004	ND
2016-09-20	35267198005	ND
2016-09-20	35267198001	ND
2016-09-20	35267198002	ND
2016-09-20	35267198003	ND
2016-09-20	35267198004	ND
2016-09-20	35267198005	ND
2016-10-05	35270134001	ND
2016-10-05	35270134001	ND
2017-01-17	AE12843	ND
2017-01-17	AE12847	ND
2017-01-17	AE12851	ND
2017-01-17	AE12855	ND
2017-01-17	AE12859	ND
2017-01-17	AE12843	ND
2017-01-17	AE12847	ND
2017-01-17	AE12851	ND
2017-01-17	AE12855	ND
2017-01-17	AE12859	ND
2017-01-23	AE12876	ND
2017-01-23	AE12876	ND
2017-04-24	AE13860	ND
2017-04-24	AE13864	ND
2017-04-24	AE13876	ND
2017-04-24	AE13860	ND
2017-04-24	AE13864	ND
2017-04-24	AE13876	ND
2017-05-15	AE14137	ND
2017-05-15	AE14141	ND
2017-05-15	AE14145	ND
2017-05-15	AE14149	ND
2017-05-15	AE14153	ND
2017-05-15	AE14137	ND
2017-05-15	AE14141	ND
2017-05-15	AE14145	ND
2017-05-15	AE14149	ND
2017-05-15	AE14153	ND
2017-05-23	AE14199	ND
2017-05-23	AE14203	ND
2017-05-23	AE14207	ND
2017-05-23	AE14211	ND
2017-05-23	AE14199	ND
2017-05-23	AE14203	ND
2017-05-23	AE14207	ND
2017-05-23	AE14211	ND
2017-06-05	AE14288	ND
2017-06-05	AE14300	ND
2017-06-05	AE14304	ND
2017-06-05	AE14288	ND
2017-06-05	AE14300	ND
2017-06-05	AE14304	ND
2017-06-19	AE14876	ND
2017-06-19	AE14880	ND
2017-06-19	AE14876	ND
2017-06-19	AE14880	ND
2017-06-27	AE15202	ND
2017-06-27	AE15206	ND
2017-06-27	AE15210	ND
2017-06-27	AE15214	ND
2017-06-27	AE15218	ND
2017-06-27	AE15202	ND
2017-06-27	AE15206	ND
2017-06-27	AE15210	ND
2017-06-27	AE15214	ND
2017-06-27	AE15218	ND
2017-07-18	AE15713	ND
2017-07-18	AE15717	ND
2017-07-18	AE15721	ND
2017-07-18	AE15725	ND
2017-07-18	AE15713	ND
2017-07-18	AE15717	ND
2017-07-18	AE15721	ND
2017-07-18	AE15725	ND
2017-07-25	AE15925	ND
2017-07-25	AE15929	ND
2017-07-25	AE15925	ND
2017-07-25	AE15929	ND
2017-08-02	AE16228	ND
2017-08-02	AE16228	ND
2017-11-28	AE20080	ND
2017-11-28	AE20080	ND
2017-12-05	AE20105	ND
2017-12-05	AE20105	ND
2018-01-29	35371282004	ND
2018-01-29	35371282004	ND
2018-03-12	35379759001	ND
2018-03-12	35379759002	ND
2018-03-12	35379759001	ND
2018-03-12	35379759002	ND
2018-04-10	35385805004	ND
2018-04-10	35385805005	ND
2018-04-10	35385805004	ND
2018-04-10	35385805005	ND
2018-04-17	35386963001	ND
2018-04-17	35386963002	ND
2018-04-17	35386963003	ND
2018-04-17	35386963004	ND
2018-04-17	35386963001	ND
2018-04-17	35386963002	ND
2018-04-17	35386963003	ND
2018-04-17	35386963004	ND
2018-06-11	35398105001	ND
2018-06-11	35398105002	ND
2018-06-11	35398105001	ND
2018-06-11	35398105002	ND
2018-09-20	B1804419-001	ND
2018-09-20	B1804419-002	ND
2018-09-20	B1804419-003	ND
2018-09-20	B1804419-004	ND
2018-09-20	B1804419-001	ND
2018-09-20	B1804419-002	ND
2018-09-20	B1804419-003	ND
2018-09-20	B1804419-004	ND
2018-09-24	B1804492-001	ND
2018-09-24	B1804492-002	ND
2018-09-24	B1804492-003	ND
2018-09-24	B1804492-004	ND
2018-09-24	B1804492-001	ND
2018-09-24	B1804492-002	ND
2018-09-24	B1804492-003	ND
2018-09-24	B1804492-004	ND
2018-12-03	B1805681-001	ND
2018-12-03	B1805681-002	ND
2018-12-03	B1805681-003	ND
2018-12-03	B1805681-001	ND
2018-12-03	B1805681-002	ND
2018-12-03	B1805681-003	ND
2018-12-04	B1805718-001	ND
2018-12-04	B1805718-002	ND
2018-12-04	B1805718-001	ND
2018-12-04	B1805718-002	ND
2018-12-11	B1805886-001	ND
2018-12-11	B1805886-002	ND
2018-12-11	B1805886-003	ND
2018-12-11	B1805886-001	ND
2018-12-11	B1805886-002	ND
2018-12-11	B1805886-003	ND
2019-01-23	B1900320-001	ND
2019-01-23	B1900320-002	ND
2019-01-23	B1900320-003	ND
2019-01-23	B1900320-001	ND
2019-01-23	B1900320-002	ND
2019-01-23	B1900320-003	ND
2019-02-14	B1900648-001	ND
2019-02-14	B1900648-002	ND
2019-02-14	B1900648-001	ND
2019-02-14	B1900648-002	ND
2019-03-14	B1901011-001	ND
2019-03-14	B1901011-002	ND
2019-03-14	B1901011-001	ND
2019-03-14	B1901011-002	ND
2019-03-18	B1901046-001	ND
2019-03-18	B1901046-002	ND
2019-03-18	B1901046-003	ND
2019-03-18	B1901046-004	ND
2019-03-18	B1901046-001	ND
2019-03-18	B1901046-002	ND
2019-03-18	B1901046-003	ND
2019-03-18	B1901046-004	ND
2019-03-25	B1901118-001	ND
2019-03-25	B1901118-001	ND
2019-04-09	B1901403-001	ND
2019-04-09	B1901403-002	ND
2019-04-09	B1901403-003	ND
2019-04-09	B1901403-001	ND
2019-04-09	B1901403-002	ND
2019-04-09	B1901403-003	ND
2019-04-10	B1901440-001	ND
2019-04-10	B1901440-002	ND
2019-04-10	B1901440-001	ND
2019-04-10	B1901440-002	ND
2019-04-24	B1901656-001	ND
2019-04-24	B1901656-002	ND
2019-04-24	B1901656-001	ND
2019-04-24	B1901656-002	ND
2019-04-29	B1901696-001	ND
2019-04-29	B1901696-002	ND
2019-04-29	B1901696-001	ND
2019-04-29	B1901696-002	ND
2019-05-16	B1902022-001	ND
2019-05-16	B1902022-002	ND
2019-05-16	B1902022-001	ND
2019-05-16	B1902022-002	ND
2019-08-21	B1903611-001	ND
2019-08-21	B1903611-002	ND
2019-08-21	B1903611-003	ND
2019-08-21	B1903611-001	ND
2019-08-21	B1903611-002	ND
2019-08-21	B1903611-003	ND
2019-10-07	B1904469-001	ND
2019-10-07	B1904469-001	ND
2019-10-28	B1904779-001	ND
2019-10-28	B1904779-001	ND
2019-11-20	B1905155-001	ND
2019-11-20	B1905155-001	ND
2019-12-03	B1905405-001	ND
2019-12-03	B1905405-002	ND
2019-12-03	B1905405-003	ND
2019-12-03	B1905405-001	ND
2019-12-03	B1905405-002	ND
2019-12-03	B1905405-003	ND
2019-12-04	B1905437-001	ND
2019-12-04	B1905437-002	ND
2019-12-04	B1905437-001	ND
2019-12-04	B1905437-002	ND