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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

City of Puyallup

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

 

42

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014ND60ND
20150.191 ppb3620ND - 0.450 ppb
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-0852887ND
2014-07-0852888ND
2014-07-0852889ND
2014-07-0952921ND
2014-07-0952922ND
2014-07-0952923ND
2015-02-03201502050717AM0.370 ppb
2015-02-03201502050855AMND
2015-02-03201502050727AM0.240 ppb
2015-02-03201502050400AM0.400 ppb
2015-02-03201502050455AM0.240 ppb
2015-02-03201502050735AM0.450 ppb
2015-02-03201502050725AMND
2015-02-03201502050688AMND
2015-02-03201502050880AMND
2015-02-03201502050883AM0.300 ppb
2015-02-03201502050731AM0.240 ppb
2015-02-03201502050764AM0.220 ppb
2015-02-03201502050875AM0.310 ppb
2015-02-03201502050842AMND
2015-02-03201502050905AM0.380 ppb
2015-05-05201505070577AMND
2015-05-05201505070594AMND
2015-08-06201508070125AM0.410 ppb
2015-08-06201508070114AMND
2015-08-06201508070121AMND
2015-08-06201508070108AMND
2015-08-06201508070118AM0.270 ppb
2015-08-06201508070198AM0.400 ppb
2015-08-06201508070151AMND
2015-08-06201508070232AM0.450 ppb
2015-08-06201508070106AM0.420 ppb
2015-08-06201508070229AM0.410 ppb
2015-08-06201508070135AMND
2015-08-06201508070201AMND
2015-08-06201508110453AMND
2015-08-06201508070155AM0.400 ppb
2015-08-06201508070215AMND
2015-08-06201508070195AM0.250 ppb
2015-09-29201509300232AMND
2015-11-17201511180504AM0.430 ppb
2015-11-17201511180474AM0.290 ppb