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EWG's Tap Water Database — 2021 UPDATE

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Strontium

Harris County FWSD 61

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.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.427 ppb660.279 ppb - 0.576 ppb
20150.426 ppb660.279 ppb - 0.586 ppb
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
2014-09-23Q14468610010.279 ppb
2014-09-23Q14468610050.348 ppb
2014-09-23Q14468610070.407 ppb
2014-09-23Q14468610110.518 ppb
2014-09-23Q14468610090.576 ppb
2014-09-23Q14468610030.435 ppb
2015-03-23Q15105560010.279 ppb
2015-03-23Q15105560050.355 ppb
2015-03-23Q15105560070.521 ppb
2015-03-23Q15105560110.352 ppb
2015-03-23Q15105560090.586 ppb
2015-03-23Q15105560030.463 ppb