Know Your Environment. Protect Your Health.

Manganese

Annapolis PWS

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.819 ppb83ND - 3.11 ppb
20190.878 ppb84ND - 2.69 ppb
20200.728 ppb83ND - 2.64 ppb
20210.553 ppb83ND - 1.84 ppb
20220.650 ppb82ND - 3.19 ppb
20231.58 ppb85ND - 4.62 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
2018-01-29AD11500ND
2018-01-29AD11499ND
2018-05-02AD18215ND
2018-05-02AD182141.55 ppb
2018-07-10AD293933.11 ppb
2018-07-10AD29394ND
2018-10-17AD345481.89 ppb
2018-10-17AD34549ND
2019-01-10AD378601.61 ppb
2019-01-10AD37861ND
2019-04-15AD462841.37 ppb
2019-04-15AD46285ND
2019-07-23AD52085ND
2019-07-23AD52084ND
2019-10-22AD568621.35 ppb
2019-10-22AD568632.69 ppb
2020-02-03AD60672ND
2020-02-03AD60671ND
2020-06-032010513ND
2020-06-032010512ND
2020-07-2720116691.63 ppb
2020-07-2720116701.55 ppb
2020-10-292016617ND
2020-10-2920166162.64 ppb
2021-01-212020216ND
2021-01-212020217ND
2021-04-1921038301.47 ppb
2021-04-192103829ND
2021-07-192113683ND
2021-07-1921136821.84 ppb
2021-10-262118144ND
2021-10-2621181451.11 ppb
2022-01-242122168ND
2022-01-242122169ND
2022-04-132204382ND
2022-04-1322043812.01 ppb
2022-07-122214772ND
2022-07-122214771ND
2022-10-242219681ND
2022-10-2422196803.19 ppb
2023-02-1423013201.24 ppb
2023-02-142301319ND
2023-04-1923034892.78 ppb
2023-04-192303488ND
2023-07-192311679ND
2023-07-1923116801.65 ppb
2023-10-1623168602.32 ppb
2023-10-1623168614.62 ppb