Know Your Environment. Protect Your Health.

Manganese

Ringwood Water Department

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.

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
20196.59 ppb2018ND - 17.4 ppb
202016.2 ppb16165.56 ppb - 59.9 ppb
2021ND30ND
202210.8 ppb16164.18 ppb - 25.9 ppb
20239.47 ppb16163.41 ppb - 17.7 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
2013-01-22100225Q17.3 ppb
2013-01-22100227P15.9 ppb
2013-01-22300305P13.8 ppb
2013-01-22100226PND
2013-01-22100228PND
2013-01-22300306P4.84 ppb
2013-04-22300988P3.58 ppb
2013-04-22101054P12.2 ppb
2013-07-24101654P17.9 ppb
2013-07-24101652P14.0 ppb
2013-07-24101653PND
2013-09-04102014RND
2013-09-04302015R2.50 ppb
2013-09-04302016R11.7 ppb
2013-11-04102538Q30.0 ppb
2013-11-04302472P4.40 ppb
2018-05-17DWS8710-3ND
2018-05-17DWS8710-2ND
2018-05-17DWS8710-1ND
2021-10-21211020039-003ND
2021-10-21211020039-002ND
2021-10-21211020039-001ND