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EWG's Tap Water Database — 2019 UPDATE

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Manganese

NJ American Water - Western

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.

 

102

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0667 ppb61ND - 0.400 ppb
20130.0429 ppb71ND - 0.300 ppb
20145.21 ppb3619ND - 29.7 ppb
2015ND70ND
20164.87 ppb91ND - 43.8 ppb
20175.68 ppb3715ND - 44.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2012-04-1117064701ND
2012-04-1117066401ND
2012-04-1117064801ND
2012-04-1117066001ND
2012-04-1717065901ND
2012-09-20L4330754-10.400 ppb
2013-01-0920691301ND
2013-09-2321561201ND
2013-09-2421568901ND
2013-09-2421565801ND
2013-09-2421561101ND
2013-09-2621565701ND
2013-10-22L4805051-10.300 ppb
2014-01-0824566301ND
2014-04-042540550114.0 ppb
2014-04-042540200112.0 ppb
2014-05-0525405801ND
2014-05-052540300121.0 ppb
2014-05-0525402901ND
2014-05-0725399001ND
2014-05-2225399101ND
2014-06-1026061301ND
2014-06-12L5106514-20.1000 ppb
2014-06-1225399201ND
2014-06-12L5106514-30.200 ppb
2014-06-1225400201ND
2014-06-12L5106514-60.300 ppb
2014-06-1225400401ND
2014-06-12L5106514-10.200 ppb
2014-06-1225403101ND
2014-06-12L5106514-4ND
2014-06-12L5106514-529.7 ppb
2014-06-122580180129.0 ppb
2014-06-30L5127619-29.10 ppb
2014-06-3025801001ND
2014-06-30L5127619-38.60 ppb
2014-06-30L5127619-10.200 ppb
2014-06-3025798301ND
2014-07-08L5148621-30.130 ppb
2014-07-2425402301ND
2014-07-2925402601ND
2014-07-2925403301ND
2014-07-2925801401ND
2014-07-30L5178844-37.30 ppb
2014-07-30L5178844-27.40 ppb
2014-08-12L5206215-18.60 ppb
2014-08-202620720120.0 ppb
2014-08-20L5210769-215.4 ppb
2014-09-22L5255129-14.30 ppb
2015-01-1227863701ND
2015-04-1728548301ND
2015-04-1728545801ND
2015-04-2428548501ND
2015-04-2928545901ND
2015-04-2928548401ND
2015-09-29L5832866-2ND
2016-01-0431135401ND
2016-01-21L6025921-1ND
2016-04-0731818701ND
2016-04-1531815301ND
2016-04-1531815401ND
2016-04-1531821501ND
2016-04-1531818601ND
2016-08-0833098201ND
2016-08-11L6419555-143.8 ppb
2017-01-0534460001ND
2017-04-1335348601ND
2017-04-1335355701ND
2017-04-1335355001ND
2017-04-1335355201ND
2017-04-133535600112.0 ppb
2017-06-233535460115.0 ppb
2017-06-233598640111.0 ppb
2017-06-2335355801ND
2017-06-2635349201ND
2017-06-273535270144.0 ppb
2017-06-273653360111.0 ppb
2017-06-2735991301ND
2017-06-2735990201ND
2017-07-0335349101ND
2017-07-0335356201ND
2017-07-2535352901ND
2017-08-0435355601ND
2017-08-29L6943905-110.00 ppb
2017-08-29L6943905-62.00 ppb
2017-08-29L6943905-5ND
2017-08-29L6943905-310.1 ppb
2017-08-29L6943905-413.5 ppb
2017-08-29L6943905-2ND
2017-08-3037194201ND
2017-08-30L6944262-3ND
2017-08-30L6944262-1ND
2017-08-3037194801ND
2017-08-30L6944262-4ND
2017-08-30L6944262-26.60 ppb
2017-09-053719450134.0 ppb
2017-09-14L6951963-1ND
2017-09-14L6951963-23.10 ppb
2017-09-14L6951963-31.60 ppb
2017-09-14L6951963-627.9 ppb
2017-09-14L6951963-4ND
2017-09-14L6951963-58.50 ppb