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EWG's Tap Water Database — 2021 UPDATE

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Strontium

Dover Water Department

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.136 ppb990.0484 ppb - 0.236 ppb
20140.124 ppb10100.0630 ppb - 0.182 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
2013-09-2435109798015AM0.0906 ppb
2013-09-2435109798017AM0.0484 ppb
2013-09-2435109798001AM0.148 ppb
2013-09-2435109798003AM0.236 ppb
2013-09-2435109798009AM0.107 ppb
2013-09-2435109798007AM0.168 ppb
2013-09-2435109798005AM0.212 ppb
2013-09-2435109798013AM0.107 ppb
2013-09-2435109798012AM0.103 ppb
2014-02-2435127879007AM0.0630 ppb
2014-02-2435127879005AM0.178 ppb
2014-02-2435127879001AM0.143 ppb
2014-02-2435127879009AM0.144 ppb
2014-02-2435127879003AM0.0987 ppb
2014-02-2435127879011AM0.110 ppb
2014-02-2435127879013AM0.182 ppb
2014-02-2535128097001AM0.101 ppb
2014-02-2535128097005AM0.116 ppb
2014-02-2535128097003AM0.0995 ppb