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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

California American Water Company - Monterey

Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).

MORE ABOUT THIS CONTAMINANT

 

116

Samples

0

Samples exceeding legal limit (MCL)

47

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.498 ppb1413ND - 1.62 ppb
20140.210 ppb5526ND - 2.79 ppb
20150.195 ppb116ND - 1.000 ppb
20160.154 ppb262ND - 2.23 ppb
2017ND50ND
2018ND50ND
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2013-09-09233909010.590 ppb
2013-09-11233911011.62 ppb
2013-09-1123386401ND
2013-09-11233897010.530 ppb
2013-09-11233877010.590 ppb
2013-09-11233876010.580 ppb
2013-09-11233868010.0700 ppb
2013-09-11233871010.580 ppb
2013-10-07233888010.0700 ppb
2013-10-08233870010.640 ppb
2013-10-30233891010.380 ppb
2013-10-31233878010.600 ppb
2013-12-16242080010.0300 ppb
2013-12-17242068010.690 ppb
2014-02-045810-029-1340ND
2014-02-045810-051-11001.50 ppb
2014-02-055810-075-1058ND
2014-02-055810-076-1133ND
2014-02-055810-077-1018ND
2014-02-115810-002-1100ND
2014-02-115810-006-1030ND
2014-02-115810-020-1245ND
2014-02-115810-024-1055ND
2014-02-115810-052-1210ND
2014-02-115810-074-1040ND
2014-02-125810-046-1340ND
2014-02-125810-047-1355ND
2014-02-185810-017-1335ND
2014-02-185810-044-1400ND
2014-02-185810-045-1210ND
2014-02-185810-054-1225ND
2014-02-195810-033-1320ND
2014-02-195810-072-1100ND
2014-02-205810-016-1300ND
2014-02-245810-026-1145ND
2014-03-035810-083-1306ND
2014-03-10249959010.0400 ppb
2014-03-10249985010.650 ppb
2014-03-10249939010.650 ppb
2014-03-10249940010.640 ppb
2014-03-11249996010.0500 ppb
2014-03-11250000010.0700 ppb
2014-03-11249921010.0400 ppb
2014-03-11249944010.0600 ppb
2014-03-12249937010.1000 ppb
2014-03-24249942010.0900 ppb
2014-03-261644-050-1150ND
2014-04-0924999801ND
2014-04-09249941010.0800 ppb
2014-05-05250002010.530 ppb
2014-05-05250004011.50 ppb
2014-05-05249948010.450 ppb
2014-05-09249938010.470 ppb
2014-05-09249945010.460 ppb
2014-05-09249946010.460 ppb
2014-05-275810-073-1030ND
2014-06-111225-089-1000ND
2014-06-18258244010.0900 ppb
2014-06-24258230010.570 ppb
2014-11-131225-048-13502.79 ppb
2014-12-1628049401ND
2014-12-16269251010.0700 ppb
2014-12-16269249010.0400 ppb
2014-12-16269252010.0500 ppb
2014-12-18281098010.0400 ppb
2014-12-18269254010.0400 ppb
2014-12-211225-075-0630ND
2014-12-211225-076-0640ND
2014-12-211225-077-0700ND
2015-05-04292602010.0500 ppb
2015-05-04292601010.0600 ppb
2015-06-021225-075-1025ND
2015-06-021225-076-1035ND
2015-06-021225-077-1010ND
2015-06-18274263010.390 ppb
2015-06-18274265010.420 ppb
2015-07-201225-070-1150ND
2015-07-23299987010.220 ppb
2015-07-23299986011.000 ppb
2015-09-291225-083-1325ND
2016-01-205810-087-1055ND
2016-01-261225-075-1000ND
2016-01-261225-076-1010ND
2016-01-261225-077-1030ND
2016-02-081225-016-1030ND
2016-02-081225-017-1000ND
2016-02-081225-044-1230ND
2016-02-081225-045-1200ND
2016-02-081225-047-1100ND
2016-03-081225-083-1115ND
2016-04-061225-024-1410ND
2016-04-071225-082-1010ND
2016-04-191225-029-1000ND
2016-04-191225-051-11002.23 ppb
2016-04-261225-048-11151.78 ppb
2016-05-121225-052-1010ND
2016-06-071225-026-1045ND
2016-06-071225-072-1000ND
2016-06-071225-073-1020ND
2016-06-081225-002-1330ND
2016-06-081225-006-1300ND
2016-06-081225-074-1315ND
2016-09-261225-050-1125ND
2016-09-261225-070-1450ND
2016-09-301225-046-1400ND
2016-12-211225-085-1545ND
2017-01-121225-082-1331ND
2017-01-251225-075-1115ND
2017-01-251225-076-1120ND
2017-01-251225-077-1130ND
2017-01-251225-083-1135ND
2018-01-111225-075-1125ND
2018-01-111225-076-1135ND
2018-01-111225-077-1205ND
2018-01-111225-082-1105ND
2018-01-111225-083-1155ND