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EWG's Tap Water Database — 2021 UPDATE

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Strontium

Norwich Public Utilities

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0680 ppb16160.0177 ppb - 0.206 ppb
20150.0298 ppb440.0275 ppb - 0.0320 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
2014-06-1720139090020.0177 ppb
2014-06-1720139090040.0281 ppb
2014-06-1720139090030.195 ppb
2014-06-1720139090010.0218 ppb
2014-06-1820140160010.206 ppb
2014-06-1820140160020.0270 ppb
2014-09-1120293390070.0303 ppb
2014-09-1120293390050.0308 ppb
2014-09-1120293390010.0221 ppb
2014-09-1120293390030.0225 ppb
2014-12-1120452000090.194 ppb
2014-12-1120452000110.193 ppb
2014-12-1120452000050.0220 ppb
2014-12-1120452000070.0286 ppb
2014-12-1120452000010.0214 ppb
2014-12-1120452000030.0271 ppb
2015-03-1020592600010.0275 ppb
2015-03-1020592600030.0280 ppb
2015-03-1020592600070.0320 ppb
2015-03-1020592600050.0315 ppb