Know Your Environment. Protect Your Health.

Manganese

City of Chico

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.

 

78

Samples

0

Samples exceeding legal limit (MCL)

18

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201880.1 ppb148ND - 570.0 ppb
2019149.9 ppb2015ND - 1,220.0 ppb
202081.5 ppb178ND - 643.0 ppb
2021308.4 ppb2115ND - 3,560.0 ppb
2022145.5 ppb43ND - 509.0 ppb
2023ND20ND

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
2018-06-26758997400243.4 ppb
2018-06-267589974001142.0 ppb
2018-06-267589974005ND
2018-06-267589974003ND
2018-06-267589974004ND
2018-09-281722052ND
2018-09-28172205373.5 ppb
2018-09-281722054ND
2018-09-281722050257.0 ppb
2018-12-13AE4901121.0 ppb
2018-12-2817467021.01 ppb
2018-12-28174670313.7 ppb
2018-12-281746704ND
2018-12-281746700570.0 ppb
2019-02-251761927273.0 ppb
2019-02-2517619321.03 ppb
2019-02-2517619331.43 ppb
2019-02-25176193418.0 ppb
2019-02-251761935ND
2019-06-21179502227.5 ppb
2019-06-211795021138.0 ppb
2019-06-2117950201.82 ppb
2019-06-2117950171,220.0 ppb
2019-06-211795019ND
2019-08-191811556929.0 ppb
2019-08-191811557ND
2019-08-1918115581.08 ppb
2019-08-191811559122.0 ppb
2019-08-191811560ND
2019-11-0418346741.64 ppb
2019-11-041834676ND
2019-11-041834675164.0 ppb
2019-11-0418346731.38 ppb
2019-11-04183467299.1 ppb
2020-01-171856105ND
2020-01-1718561062.82 ppb
2020-01-171856107438.0 ppb
2020-01-171856108144.0 ppb
2020-01-171856109ND
2020-08-19Q2033209007ND
2020-08-19Q2033209008ND
2020-09-101921443643.0 ppb
2020-09-101921447ND
2020-09-10192144645.4 ppb
2020-09-101921445ND
2020-09-1019214441.83 ppb
2020-11-17194074043.4 ppb
2020-11-171940741ND
2020-11-171940742ND
2020-11-17194074366.6 ppb
2020-11-171940744ND
2021-02-0419607771,370.0 ppb
2021-02-0419607781.30 ppb
2021-02-0419607791.35 ppb
2021-02-041960780178.0 ppb
2021-02-041960781ND
2021-06-14199625370.2 ppb
2021-06-141996252ND
2021-06-1419962501.01 ppb
2021-06-1419962493,560.0 ppb
2021-06-14199625118.2 ppb
2021-07-092003902373.0 ppb
2021-07-09200390473.7 ppb
2021-07-092003905ND
2021-07-0920039061.04 ppb
2021-07-092003907ND
2021-08-11Q212137201329.0 ppb
2021-11-052039673ND
2021-11-05203967686.1 ppb
2021-11-052039675ND
2021-11-0520396741.74 ppb
2021-11-052039671712.0 ppb
2022-06-13209952569.8 ppb
2022-06-1320995273.17 ppb
2022-06-132099528ND
2022-06-132099529509.0 ppb
2023-05-30Q2319948018ND
2023-05-30Q2319948019ND