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EWG's Tap Water Database — 2021 UPDATE

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Germanium

City of San Juan

Germanium is a naturally occuring element used as a component in semiconductors and fiber optics. Excessive exposures to germanium may harm the kidneys.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
20190.543 ppb75ND - 1.000 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2019-01-15Q19021050010.500 ppb
2019-04-22Q19159250010.700 ppb
2019-04-22Q19159250020.700 ppb
2019-07-16Q19453440011.000 ppb
2019-07-16Q19453440020.900 ppb
2019-10-08Q1971743001ND
2019-10-08Q1971743002ND
2020-01-29Q2003576001ND