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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

City of Alexandria Water System

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.

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198

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
20150.163 ppb248ND - 0.800 ppb
2016ND720ND
2017ND100ND
2018N/A00N/A
20190.142 ppb9214ND - 1.20 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 Lab ID Result
2015-02-093183645ND
2015-02-103184615ND
2015-02-1631889280.300 ppb
2015-02-163188932ND
2015-02-163188941ND
2015-02-163188966ND
2015-02-173193141ND
2015-02-1731893630.400 ppb
2015-02-173189401ND
2015-02-173189533ND
2015-02-173192243ND
2015-02-1831922520.700 ppb
2015-08-0432929060.400 ppb
2015-08-043292503ND
2015-08-053293578ND
2015-08-053293569ND
2015-08-0632948020.300 ppb
2015-08-0632947870.800 ppb
2015-08-103296369ND
2015-08-1032963770.400 ppb
2015-08-103296536ND
2015-08-1132976400.600 ppb
2015-08-113298129ND
2015-08-133301097ND
2016-05-1035244408001ND
2016-05-1035244408002ND
2016-05-1035244408003ND
2016-05-1035244408004ND
2016-05-1035244408005ND
2016-05-1035244408001ND
2016-05-1035244408002ND
2016-05-1035244408003ND
2016-05-1035244408004ND
2016-05-1035244408005ND
2016-05-1835245776001ND
2016-05-1835245776002ND
2016-05-1835245776003ND
2016-05-1835245776004ND
2016-05-1835245776005ND
2016-05-1835245776001ND
2016-05-1835245776002ND
2016-05-1835245776003ND
2016-05-1835245776004ND
2016-05-1835245776005ND
2016-05-2535246558001ND
2016-05-2535246558002ND
2016-05-2535246558003ND
2016-05-2535246558004ND
2016-05-2535246558005ND
2016-05-2535246558001ND
2016-05-2535246558002ND
2016-05-2535246558003ND
2016-05-2535246558004ND
2016-05-2535246558005ND
2016-06-0635248060001ND
2016-06-0635248060002ND
2016-06-0635248060003ND
2016-06-0635248060004ND
2016-06-0635248060005ND
2016-06-0635248060001ND
2016-06-0635248060002ND
2016-06-0635248060003ND
2016-06-0635248060004ND
2016-06-0635248060005ND
2016-06-1535250015001ND
2016-06-1535250015002ND
2016-06-1535250015003ND
2016-06-1535250015004ND
2016-06-1535250015005ND
2016-06-1535250015001ND
2016-06-1535250015002ND
2016-06-1535250015003ND
2016-06-1535250015004ND
2016-06-1535250015005ND
2016-07-1935255757001ND
2016-07-1935255757002ND
2016-07-1935255757001ND
2016-07-1935255757002ND
2016-08-0935259194001ND
2016-08-0935259194002ND
2016-08-0935259194003ND
2016-08-0935259194004ND
2016-08-0935259194005ND
2016-08-0935259194001ND
2016-08-0935259194002ND
2016-08-0935259194003ND
2016-08-0935259194004ND
2016-08-0935259194005ND
2016-10-0535271142005ND
2016-10-0535271142005ND
2016-11-0935276653001ND
2016-11-0935276653002ND
2016-11-0935276653001ND
2016-11-0935276653002ND
2016-12-1435283929004ND
2016-12-1435283929004ND
2017-03-0835299871001ND
2017-03-0835299871002ND
2017-03-0835299871001ND
2017-03-0835299871002ND
2017-08-0735329426006ND
2017-08-0735329426006ND
2017-11-0235345825001ND
2017-11-0235345825002ND
2017-11-0235345825001ND
2017-11-0235345825002ND
2019-01-3035445470001ND
2019-01-3035445470002ND
2019-01-30354454700030.810 ppb
2019-01-30354454700040.980 ppb
2019-01-3035445470005ND
2019-01-3035445470001ND
2019-01-3035445470002ND
2019-01-30354454700030.810 ppb
2019-01-30354454700040.980 ppb
2019-01-3035445470005ND
2019-02-0635446987001ND
2019-02-0635446987002ND
2019-02-0635446987003ND
2019-02-06354469870040.900 ppb
2019-02-0635446987005ND
2019-02-0635446987001ND
2019-02-0635446987002ND
2019-02-0635446987003ND
2019-02-06354469870040.900 ppb
2019-02-0635446987005ND
2019-02-2735451250001ND
2019-02-2735451250002ND
2019-02-2735451250003ND
2019-02-2735451250004ND
2019-02-2735451250005ND
2019-02-2735451250001ND
2019-02-2735451250002ND
2019-02-2735451250003ND
2019-02-2735451250004ND
2019-02-2735451250005ND
2019-03-1335454676001ND
2019-03-1335454676002ND
2019-03-1335454676003ND
2019-03-1335454676004ND
2019-03-1335454676001ND
2019-03-1335454676002ND
2019-03-1335454676003ND
2019-03-1335454676004ND
2019-03-2035456260001ND
2019-03-2035456260002ND
2019-03-2035456260003ND
2019-03-20354562600041.20 ppb
2019-03-20354562600050.980 ppb
2019-03-2035456260001ND
2019-03-2035456260002ND
2019-03-2035456260003ND
2019-03-20354562600041.20 ppb
2019-03-20354562600050.980 ppb
2019-03-2735457693001ND
2019-03-27354576930020.820 ppb
2019-03-2735457693003ND
2019-03-2735457693004ND
2019-03-27354576930050.850 ppb
2019-03-2735457693001ND
2019-03-27354576930020.820 ppb
2019-03-2735457693003ND
2019-03-2735457693004ND
2019-03-27354576930050.850 ppb
2019-04-1035461050001ND
2019-04-1035461050002ND
2019-04-1035461050003ND
2019-04-1035461050004ND
2019-04-1035461050005ND
2019-04-1035461050001ND
2019-04-1035461050002ND
2019-04-1035461050003ND
2019-04-1035461050004ND
2019-04-1035461050005ND
2019-06-06B1902352-001ND
2019-06-06B1902352-003ND
2019-06-06B1902352-001ND
2019-06-06B1902352-003ND
2019-07-25B1903186-001ND
2019-07-25B1903188-001ND
2019-07-25B1903186-001ND
2019-07-25B1903188-001ND
2019-09-11B1904050-001ND
2019-09-11B1904050-002ND
2019-09-11B1904050-003ND
2019-09-11B1904050-001ND
2019-09-11B1904050-002ND
2019-09-11B1904050-003ND
2019-12-04B1905453-001ND
2019-12-04B1905453-002ND
2019-12-04B1905453-003ND
2019-12-04B1905453-004ND
2019-12-04B1905453-005ND
2019-12-04B1905453-001ND
2019-12-04B1905453-002ND
2019-12-04B1905453-003ND
2019-12-04B1905453-004ND
2019-12-04B1905453-005ND