Know Your Environment. Protect Your Health.

Manganese

San Lucas Water District

Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.

 

41

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
202061.5 ppb2247.0 ppb - 76.0 ppb
202153.5 ppb119ND - 134.0 ppb
20228.31 ppb134ND - 57.0 ppb
202336.7 ppb156ND - 274.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 100 ppb

The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Lab ID Result
2020-11-03CA2701676_004_004-20201103085076.0 ppb
2020-12-08CA2701676_004_004-20201208084547.0 ppb
2021-01-12CA2701676_004_004-20210112091075.0 ppb
2021-02-02CA2701676_004_004-20210202091083.0 ppb
2021-03-02CA2701676_004_004-20210302100564.0 ppb
2021-04-06CA2701676_004_004-202104061130ND
2021-05-11CA2701676_004_004-202105111220134.0 ppb
2021-07-27CA2701676_004_004-20210727100529.0 ppb
2021-08-03CA2701676_004_004-20210803111069.0 ppb
2021-09-07CA2701676_004_004-20210907101032.0 ppb
2021-10-08CA2701676_004_004-20211008122579.0 ppb
2021-11-05CA2701676_004_004-20211105112024.0 ppb
2021-12-10CA2701676_004_004-202112101140ND
2022-01-07CA2701676_004_004-20220107132016.0 ppb
2022-02-25CA2701676_004_004-202202251130ND
2022-03-11CA2701676_004_004-20220311104520.0 ppb
2022-04-08CA2701676_004_004-20220408105057.0 ppb
2022-05-06CA2701676_004_004-20220506120015.0 ppb
2022-05-13CA2701676_004_004-202205131155ND
2022-06-17CA2701676_004_004-202206171130ND
2022-07-08CA2701676_004_004-202207081200ND
2022-08-26CA2701676_004_004-202208261145ND
2022-09-16CA2701676_004_004-202209161230ND
2022-10-07CA2701676_004_004-202210071140ND
2022-11-18CA2701676_004_004-202211181100ND
2022-12-09CA2701676_004_004-202212091230ND
2023-01-19CA2701676_004_004-202301191015108.0 ppb
2023-02-16CA2701676_004_004-202302161015274.0 ppb
2023-03-16CA2701676_004_004-20230316121521.0 ppb
2023-03-30CA2701676_004_004-20230330120018.0 ppb
2023-04-06CA2701676_004_004-20230406111518.0 ppb
2023-04-13CA2701676_004_004-202304131125ND
2023-04-20CA2701676_004_004-202304201215ND
2023-04-27CA2701676_004_004-202304271135ND
2023-05-11CA2701676_004_004-202305111155ND
2023-06-15CA2701676_004_004-202306151100ND
2023-07-20CA2701676_004_004-202307201000ND
2023-09-07CA2701676_004_004-202309071015ND
2023-10-11CA2701676_004_004-202310111035ND
2023-11-29CA2701676_004_004-202311291145ND
2023-12-13CA2701676_004_004-202312131000111.0 ppb