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EWG's Tap Water Database — 2021 UPDATE

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Manganese

City of Port Arthur

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.

MORE ABOUT THIS CONTAMINANT

 

76

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
20151.20 ppb111.20 ppb
2016ND10ND
20171.000 ppb111.000 ppb
20180.848 ppb2315ND - 2.86 ppb
20190.235 ppb476ND - 3.18 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
2014-01-30AC40837ND
2015-02-24AC816051.20 ppb
2016-02-23AD24974ND
2017-02-01AD683121.000 ppb
2018-01-30AE11462ND
2018-08-131708935ND
2018-08-1317089390.640 ppb
2018-08-1317089302.86 ppb
2018-08-131708931ND
2018-08-1317089321.09 ppb
2018-08-131708933ND
2018-08-131708936ND
2018-08-1317089370.525 ppb
2018-08-1317089381.03 ppb
2018-08-131708934ND
2018-08-2017108690.977 ppb
2018-12-0317403981.04 ppb
2018-12-0317404041.56 ppb
2018-12-0317404031.73 ppb
2018-12-0317404021.07 ppb
2018-12-0317404011.12 ppb
2018-12-031740400ND
2018-12-031740397ND
2018-12-0317403961.06 ppb
2018-12-0317403952.41 ppb
2018-12-0317403991.17 ppb
2018-12-0417404411.23 ppb
2019-02-13AE54271ND
2019-02-181760435ND
2019-02-181760437ND
2019-02-181760436ND
2019-02-181760434ND
2019-02-181760433ND
2019-02-191760441ND
2019-02-191760432ND
2019-02-191760431ND
2019-02-191760430ND
2019-02-191760429ND
2019-02-1917604281.26 ppb
2019-05-131784128ND
2019-05-1317841271.53 ppb
2019-05-131784126ND
2019-05-131784125ND
2019-05-131784124ND
2019-05-131784123ND
2019-05-131784122ND
2019-05-131784121ND
2019-05-131784120ND
2019-05-1317841193.18 ppb
2019-05-1417841171.97 ppb
2019-07-08Q19425040011.30 ppb
2019-09-09C9I2480-09ND
2019-09-09C9I2480-01ND
2019-09-09C9I2480-02ND
2019-09-09C9I2480-03ND
2019-09-09C9I2480-04ND
2019-09-09C9I2480-05ND
2019-09-09C9I2480-10ND
2019-09-09C9I2480-07ND
2019-09-09C9I2480-08ND
2019-09-09C9I2480-06ND
2019-09-10C9I2480-11ND
2019-10-08Q19717440011.80 ppb
2019-11-04C9K1494-09ND
2019-11-04C9K1494-05ND
2019-11-04C9K1494-01ND
2019-11-04C9K1494-02ND
2019-11-04C9K1494-03ND
2019-11-04C9K1494-04ND
2019-11-04C9K1494-10ND
2019-11-04C9K1494-06ND
2019-11-04C9K1494-07ND
2019-11-04C9K1494-08ND
2019-11-05C9K1494-11ND
2020-01-06Q20001790010.400 ppb
2020-04-28Q20164520010.500 ppb