Cobalt

City of Bakersfield

Cobalt is a metal found throughout the environment; people may be exposed to cobalt in air, food and drinking water.

103

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	35	ND
2015	ND	67	ND
2016	ND	1	ND
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	N/A	0	N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 70 ppb

The EWG Health Guideline of 70 ppb for cobalt was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against change in blood chemistry.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-06	A3L1553-09A	ND
2014-01-06	A3L1553-05A	ND
2014-01-06	A3L1553-01A	ND
2014-02-10	A4A1447-09A	ND
2014-02-10	A4A1447-13A	ND
2014-02-11	A4A1447-01A	ND
2014-02-20	A4A1452-09A	ND
2014-03-04	A4B1894-01A	ND
2014-03-18	A4B1894-05A	ND
2014-04-04	A4C1062-05A	ND
2014-04-25	A4C1062-01A	ND
2014-07-09	A4F1980-01A	ND
2014-07-18	A4F2508-01A	ND
2014-07-18	A4F2507-01A	ND
2014-07-21	A4G0687-01A	ND
2014-07-21	A4G0686-01A	ND
2014-08-13	A4G2293-01A	ND
2014-08-15	A4H0217-01A	ND
2014-08-18	A4H0216-01A	ND
2014-08-18	A4H0214-01A	ND
2014-08-18	A4H0218-01A	ND
2014-08-18	A4G2157-01A	ND
2014-08-22	A4H0215-01A	ND
2014-08-22	A4G2295-01A	ND
2014-08-25	A4H0212-01A	ND
2014-09-05	A4H1747-01A	ND
2014-09-09	A4H2689-01A	ND
2014-09-09	A4H2688-01A	ND
2014-09-11	A4H2687-01A	ND
2014-09-12	A4I0218-01A	ND
2014-10-07	A4I0215-01A	ND
2014-10-13	A4I2289-01A	ND
2014-10-16	A4I0221-01A	ND
2014-10-27	A4I0212-01A	ND
2014-12-04	A4K2145-01A	ND
2015-01-05	A4L2538-01A	ND
2015-01-05	A4L2537-01A	ND
2015-01-07	A4L2539-01A	ND
2015-01-07	A4L2533-01A	ND
2015-01-20	A5A0608-01A	ND
2015-01-20	A5A0607-01A	ND
2015-01-22	A4K2146-01A	ND
2015-01-23	A4K2142-01A	ND
2015-01-30	A5A1891-01A	ND
2015-01-30	A5A1957-01A	ND
2015-01-30	A5A1956-01A	ND
2015-01-30	A5A1066-01A	ND
2015-01-30	A5A1062-01A	ND
2015-02-09	A5A1893-01A	ND
2015-03-16	201503180678AM	ND
2015-03-25	201503270374AM	ND
2015-03-25	201503270305AM	ND
2015-04-07	A4L0730-01A	ND
2015-04-07	201504090340AM	ND
2015-04-07	201504090266AM	ND
2015-04-07	201504090609AM	ND
2015-05-05	201505070561AM	ND
2015-05-05	201505070408AM	ND
2015-05-05	201505070582AM	ND
2015-05-05	A5E0647-01A	ND
2015-05-11	201505130390AM	ND
2015-05-11	201505130740AM	ND
2015-05-18	201505210074AM	ND
2015-05-18	201505200490AM	ND
2015-05-18	201505200482AM	ND
2015-06-02	201506040379AM	ND
2015-06-02	201506040624AM	ND
2015-06-02	201506040466AM	ND
2015-06-02	201506040455AM	ND
2015-06-16	201506180424AM	ND
2015-06-16	201506190202AM	ND
2015-06-16	201506190041AM	ND
2015-06-16	201506190221AM	ND
2015-06-16	201506190219AM	ND
2015-06-16	201506190039AM	ND
2015-07-13	201507150678AM	ND
2015-07-15	201507210564AM	ND
2015-07-15	201507230325AM	ND
2015-07-15	201507220034AM	ND
2015-07-15	201507170445AM	ND
2015-07-15	201507170436AM	ND
2015-07-16	201507210512AM	ND
2015-07-17	201507210438AM	ND
2015-07-17	201507210558AM	ND
2015-07-17	201507210562AM	ND
2015-07-27	201507290621AM	ND
2015-07-27	201507290545AM	ND
2015-08-12	201508180526AM	ND
2015-08-25	201509010437AM	ND
2015-08-31	201509020792AM	ND
2015-09-11	201509170251AM	ND
2015-09-11	201509150406AM	ND
2015-09-11	201509150493AM	ND
2015-09-11	201509150311AM	ND
2015-09-11	201509170454AM	ND
2015-09-11	201509150397AM	ND
2015-09-29	201510020477AM	ND
2015-10-05	201510090432AM	ND
2015-10-20	201510230209AM	ND
2015-11-02	201511060309AM	ND
2015-11-06	201511100695AM	ND
2015-12-15	A5L0526-01A	ND
2016-01-14	201601200628AM	ND