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EWG's Tap Water Database — 2021 UPDATE

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Strontium

North Nelson Water District

Strontium is a metal that accumulates in the bones. Radioactive strontium-90 can cause bone cancer and leukemia, and any form of strontium at high doses can harm bone health.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.148 ppb880.0630 ppb - 0.270 ppb
20140.110 ppb880.0450 ppb - 0.190 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1,500 ppb

The EWG Health Guideline of 1,500 ppb for strontium was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against harm to bones.

ppb = parts per billion

All test results

Date Lab ID Result
2013-09-2529036680.200 ppb
2013-09-2529036570.0710 ppb
2013-09-2529036960.210 ppb
2013-09-2529036380.0710 ppb
2013-12-1129446300.270 ppb
2013-12-1129445380.0670 ppb
2013-12-1129446160.230 ppb
2013-12-1129445280.0630 ppb
2014-03-1929950000.160 ppb
2014-03-1929943650.0500 ppb
2014-03-1929950850.160 ppb
2014-03-1929943610.0490 ppb
2014-06-1730482370.0450 ppb
2014-06-1730482160.180 ppb
2014-06-1730482310.0490 ppb
2014-06-1730482120.190 ppb