Know Your Environment. Protect Your Health.

Manganese

Cws-split Mountain Water System

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.

 

67

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
201917.8 ppb62ND - 67.0 ppb
20205.57 ppb141ND - 78.0 ppb
202190.0 ppb41ND - 360.0 ppb
20220.238 ppb161ND - 3.80 ppb
2023ND210ND

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
2018-01-23CA1500407_006_006-201801230950ND
2018-01-23CA1500407_005_005-201801231010ND
2018-02-07CA1500407_006_006-201802071430ND
2018-02-07CA1500407_005_005-201802071345ND
2018-05-02CA1500407_005_005-201805020835ND
2018-05-02CA1500407_006_006-201805020935ND
2019-01-15CA1500407_005_005-201901151150ND
2019-01-15CA1500407_006_006-201901151132ND
2019-05-08CA1500407_006_006-201905081138ND
2019-05-08CA1500407_005_005-201905081111ND
2019-05-13CA1500407_002_002-20190513095840.0 ppb
2019-11-18CA1500407_002_002-20191118101867.0 ppb
2020-01-22CA1500407_005_005-202001221450ND
2020-01-22CA1500407_006_006-202001221438ND
2020-02-11CA1500407_007_007-202002111247ND
2020-02-13CA1500407_002_002-20200213092078.0 ppb
2020-05-06CA1500407_005_005-202005061335ND
2020-05-06CA1500407_006_006-202005061329ND
2020-06-09CA1500407_006_006-202006090834ND
2020-06-09CA1500407_005_005-202006090820ND
2020-08-05CA1500407_005_005-202008051050ND
2020-08-05CA1500407_006_006-202008051023ND
2020-10-21CA1500407_005_005-202010211339ND
2020-10-21CA1500407_006_006-202010211345ND
2020-11-19CA1500407_006_006-202011191213ND
2020-11-19CA1500407_005_005-202011191234ND
2021-01-26CA1500407_006_006-202101261336ND
2021-01-26CA1500407_006_006-202101261336ND
2021-01-26CA1500407_005_005-202101261344ND
2021-05-06CA1500407_002_002-202105061122360.0 ppb
2022-01-18CA1500407_005_005-202201181056ND
2022-01-18CA1500407_006_006-202201181111ND
2022-04-07CA1500407_006_006-202204071005ND
2022-04-07CA1500407_005_005-202204071013ND
2022-05-03CA1500407_006_006-202205031110ND
2022-05-03CA1500407_005_005-202205031106ND
2022-06-15CA1500407_005_005-202206151412ND
2022-06-15CA1500407_006_006-202206151416ND
2022-07-13CA1500407_006_006-202207130925ND
2022-07-13CA1500407_005_005-202207130916ND
2022-08-11CA1500407_006_006-202208110933ND
2022-08-11CA1500407_005_005-202208110938ND
2022-10-06CA1500407_006_006-202210060825ND
2022-10-06CA1500407_005_005-202210060815ND
2022-12-15CA1500407_005_005-202212151057ND
2022-12-15CA1500407_006_006-2022121511033.80 ppb
2023-01-12CA1500407_005_005-202301121113ND
2023-01-12CA1500407_006_006-202301121110ND
2023-01-26CA1500407_005_005-202301260926ND
2023-01-26CA1500407_006_006-202301260934ND
2023-02-07CA1500407_005_005-202302071417ND
2023-02-07CA1500407_006_006-202302071432ND
2023-02-23CA1500407_007_007-202302231300ND
2023-03-13CA1500407_005_005-202303131005ND
2023-03-13CA1500407_006_006-202303130955ND
2023-04-12CA1500407_006_006-202304121344ND
2023-04-12CA1500407_005_005-202304121340ND
2023-05-18CA1500407_005_005-202305180908ND
2023-05-18CA1500407_006_006-202305180914ND
2023-06-08CA1500407_005_005-202306081113ND
2023-06-08CA1500407_006_006-202306081135ND
2023-07-12CA1500407_005_005-202307120930ND
2023-07-12CA1500407_006_006-202307120920ND
2023-08-15CA1500407_006_006-202308151420ND
2023-08-15CA1500407_005_005-202308151425ND
2023-10-10CA1500407_006_006-202310101143ND
2023-10-10CA1500407_005_005-202310101147ND