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EWG's Tap Water Database — 2021 UPDATE

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Germanium

California American Water Company - Parkway

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

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24

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
20180.0389 ppb91ND - 0.350 ppb
20190.135 ppb103ND - 0.550 ppb

ppb = parts per billion

All test results

Date Lab ID Result
2018-10-08416748010.350 ppb
2018-10-0941675001ND
2018-10-0941674601ND
2018-10-0941674501ND
2018-10-0941674301ND
2018-10-1041674101ND
2018-10-1041674201ND
2018-10-1041674701ND
2018-10-1141674401ND
2019-04-1043802001ND
2019-04-10438024010.400 ppb
2019-04-10438023010.550 ppb
2019-04-10438022010.400 ppb
2019-04-1043802101ND
2019-04-1043801901ND
2019-04-1043801801ND
2019-04-1043801701ND
2019-07-1145281501ND
2019-10-1446892501ND
2020-01-1448134301ND
2020-04-0749666701ND
2020-05-0550191601ND
2020-06-2950493101ND
2020-12-1052819301ND