Know Your Environment. Protect Your Health.

Manganese

City of Granite Shoals

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.

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201866.0 ppb1166.0 ppb
20195.80 ppb115.80 ppb
20208.70 ppb118.70 ppb
20213.90 ppb113.90 ppb
20220.489 ppb91ND - 4.40 ppb
202310.9 ppb126ND - 31.9 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
2018-01-23AE0979766.0 ppb
2019-05-16AE667555.80 ppb
2020-01-27AE952478.70 ppb
2021-03-11AF464383.90 ppb
2022-03-07AF876054.40 ppb
2022-09-28Q2229128001ND
2022-09-28Q2229128002ND
2022-09-28Q2229128003ND
2022-09-28Q2229128004ND
2022-10-19Q2231655004ND
2022-10-19Q2231655003ND
2022-10-19Q2231655002ND
2022-10-19Q2231655001ND
2023-03-15AG33074ND
2023-03-22Q2310798001ND
2023-03-22Q2310798002ND
2023-03-22Q2310798003ND
2023-08-23Q233568000131.3 ppb
2023-08-23Q2335680002ND
2023-08-23Q233568000313.7 ppb
2023-08-23Q233568000412.2 ppb
2023-11-29Q2350750001ND
2023-11-29Q235075000231.9 ppb
2023-11-29Q235075000317.2 ppb
2023-11-29Q235075000424.2 ppb