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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Beverly Hills / Rolling Oaks Subdivision

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.

 

44

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
20140.442 ppb2214ND - 2.00 ppb
20150.522 ppb13130.220 ppb - 0.670 ppb
2016N/A00N/A
20170.567 ppb990.200 ppb - 1.90 ppb

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 Result
2014-06-181.40 ppb
2014-06-182.00 ppb
2014-06-18ND
2014-06-18ND
2014-06-18ND
2014-06-18ND
2014-06-19ND
2014-06-300.460 ppb
2014-07-10ND
2014-07-10ND
2014-08-140.540 ppb
2014-08-140.600 ppb
2014-08-140.540 ppb
2014-08-140.720 ppb
2014-08-140.230 ppb
2014-08-14ND
2014-08-140.620 ppb
2014-08-140.570 ppb
2014-08-140.390 ppb
2014-08-140.560 ppb
2014-08-140.600 ppb
2014-08-140.490 ppb
2015-01-140.390 ppb
2015-01-140.480 ppb
2015-01-140.610 ppb
2015-01-140.620 ppb
2015-01-140.550 ppb
2015-01-140.670 ppb
2015-01-140.310 ppb
2015-01-140.580 ppb
2015-01-140.220 ppb
2015-01-140.430 ppb
2015-01-140.640 ppb
2015-01-140.640 ppb
2015-01-140.650 ppb
2017-05-301.90 ppb
2017-05-300.200 ppb
2017-05-300.500 ppb
2017-05-300.500 ppb
2017-05-300.300 ppb
2017-05-300.400 ppb
2017-05-300.500 ppb
2017-05-300.300 ppb
2017-05-300.500 ppb