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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Los Angeles Department of Water and Power

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.

 

459

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.545 ppb5845ND - 3.17 ppb
20140.0625 ppb605ND - 1.20 ppb
2015ND780ND
2016ND760ND
2017ND750ND
2018ND560ND
2019ND560ND

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
2013-04-09AW06664ND
2013-04-09AW066660.275 ppb
2013-04-10AW067300.404 ppb
2013-04-10AW066760.338 ppb
2013-04-10AW066720.233 ppb
2013-04-10AW067340.424 ppb
2013-04-10AW067360.400 ppb
2013-04-10AW067320.402 ppb
2013-04-10AW066740.314 ppb
2013-04-10AW066780.310 ppb
2013-04-11AW066680.381 ppb
2013-04-11AW067140.221 ppb
2013-04-11AW06726ND
2013-04-11AW067181.02 ppb
2013-04-11AW067223.17 ppb
2013-04-11AW066800.343 ppb
2013-04-11AW067242.76 ppb
2013-04-11AW067280.470 ppb
2013-04-11AW067201.07 ppb
2013-04-11AW066700.312 ppb
2013-04-11AW066820.362 ppb
2013-04-11AW067160.241 ppb
2013-07-25AW14479ND
2013-07-25AW144911.07 ppb
2013-07-25AW144830.283 ppb
2013-07-25AW144870.241 ppb
2013-07-25AW14481ND
2013-07-25AW144890.300 ppb
2013-07-25AW144930.958 ppb
2013-07-25AW144850.234 ppb
2013-07-26AW14590ND
2013-07-26AW14594ND
2013-07-26AW14598ND
2013-07-26AW146021.22 ppb
2013-07-26AW145920.347 ppb
2013-07-26AW146041.28 ppb
2013-07-26AW14596ND
2013-07-26AW14600ND
2013-10-29AW215500.299 ppb
2013-10-29AW215582.88 ppb
2013-10-29AW21562ND
2013-10-29AW21564ND
2013-10-29AW215601.73 ppb
2013-10-29AW215540.336 ppb
2013-10-29AW215560.378 ppb
2013-10-29AW215520.246 ppb
2013-10-30AW215841.51 ppb
2013-10-30AW215880.437 ppb
2013-10-30AW21580ND
2013-10-30AW215760.208 ppb
2013-10-30AW21578ND
2013-10-30AW215820.209 ppb
2013-10-30AW215860.949 ppb
2013-10-30AW215740.468 ppb
2013-10-31AW215660.264 ppb
2013-10-31AW215680.253 ppb
2013-10-31AW215720.982 ppb
2013-10-31AW215701.06 ppb
2014-01-071200-205-1110ND
2014-02-041200-205-0730ND
2014-02-261200-011-1215ND
2014-02-261200-133-1215ND
2014-02-271200-159-0850ND
2014-03-041200-205-0815ND
2014-03-061200-133-0710ND
2014-03-181200-133-0700ND
2014-03-19AX056661.18 ppb
2014-03-19AX056700.511 ppb
2014-03-19AX05662ND
2014-03-19AX056720.547 ppb
2014-03-19AX05664ND
2014-03-19AX056681.20 ppb
2014-03-20AX05768ND
2014-03-20AX05776ND
2014-03-20AX05772ND
2014-03-20AX05770ND
2014-03-20AX05778ND
2014-03-20AX057740.309 ppb
2014-03-311200-159-1145ND
2014-04-081200-205-1130ND
2014-05-061200-205-1100ND
2014-05-141200-011-1115ND
2014-05-141200-133-1105ND
2014-05-301200-159-1010ND
2014-06-031200-205-0720ND
2014-06-121200-205-0930ND
2014-06-151200-133-0625ND
2014-06-271200-159-1135ND
2014-07-081200-205-0700ND
2014-07-251200-159-1050ND
2014-08-051200-205-1100ND
2014-08-121200-011-1030ND
2014-08-201200-133-0900ND
2014-08-261200-159-0945ND
2014-09-021200-205-1010ND
2014-09-041200-133-0705ND
2014-09-291200-159-1050ND
2014-09-301200-133-1115ND
2014-10-071200-133-1230ND
2014-10-071200-205-0915ND
2014-10-141200-133-0635ND
2014-10-211200-133-1245ND
2014-10-281200-133-1135ND
2014-11-041200-133-0630ND
2014-11-041200-205-0900ND
2014-11-111200-133-0630ND
2014-11-111200-159-0905ND
2014-11-121200-011-1240ND
2014-11-181200-133-0935ND
2014-11-181200-133-1215ND
2014-11-251200-133-1115ND
2014-12-021200-133-1145ND
2014-12-021200-205-1040ND
2014-12-091200-133-1130ND
2014-12-161200-133-1145ND
2014-12-231200-133-1000ND
2014-12-301200-133-1200ND
2014-12-311200-159-1200ND
2015-01-061200-133-1205ND
2015-01-061200-205-0645ND
2015-01-131200-133-1200ND
2015-01-201200-133-1210ND
2015-01-261200-159-0950ND
2015-01-271200-133-0620ND
2015-02-031200-133-1225ND
2015-02-031200-205-0910ND
2015-02-101200-133-0650ND
2015-02-111200-133-0825ND
2015-02-171200-133-1330ND
2015-02-191200-011-0845ND
2015-02-241200-133-0640ND
2015-02-241200-159-0940ND
2015-03-031200-133-0625ND
2015-03-031200-205-0915ND
2015-03-101200-133-0610ND
2015-03-171200-133-0815ND
2015-03-241200-133-0645ND
2015-03-311200-133-0950ND
2015-04-071200-133-1245ND
2015-04-071200-205-1050ND
2015-04-141200-133-1220ND
2015-04-211200-133-1355ND
2015-04-281200-133-1210ND
2015-05-051200-133-0945ND
2015-05-051200-205-1200ND
2015-05-071200-159-1105ND
2015-05-131200-133-0840ND
2015-05-191200-011-0900ND
2015-05-191200-133-0620ND
2015-05-191200-133-1100ND
2015-05-261200-133-1300ND
2015-06-021200-133-1045ND
2015-06-021200-205-1015ND
2015-06-091200-133-0655ND
2015-06-161200-133-0700ND
2015-06-191200-159-0900ND
2015-06-231200-133-0650ND
2015-06-301200-133-1050ND
2015-07-161200-159-0950ND
2015-08-041200-011-1040ND
2015-08-041200-133-0635ND
2015-08-041200-133-0645ND
2015-08-041200-205-1200ND
2015-08-071200-133-0715ND
2015-08-111200-133-0645ND
2015-08-181200-133-1040ND
2015-08-201200-159-1000ND
2015-08-251200-133-1235ND
2015-09-011200-133-0700ND
2015-09-081200-133-0740ND
2015-09-081200-205-0715ND
2015-09-151200-133-0730ND
2015-09-221200-133-1350ND
2015-09-281200-159-1000ND
2015-09-291200-133-0855ND
2015-10-061200-133-0830ND
2015-10-061200-205-1030ND
2015-10-131200-133-0745ND
2015-10-201200-133-0805ND
2015-10-201200-205-1155ND
2015-10-271200-133-0650ND
2015-10-301200-159-1050ND
2015-11-031200-133-0800ND
2015-11-031200-205-1100ND
2015-11-051200-011-1005ND
2015-11-051200-133-0755ND
2015-11-101200-133-0745ND
2015-11-171200-133-0730ND
2015-11-241200-133-0745ND
2015-11-271200-159-0930ND
2015-12-011200-133-0720ND
2015-12-081200-133-0630ND
2015-12-081200-205-1030ND
2015-12-151200-133-0705ND
2015-12-221200-133-0750ND
2015-12-291200-133-0700ND
2016-01-051200-133-0650ND
2016-01-051200-205-1030ND
2016-01-121200-133-1115ND
2016-01-131200-159-1040ND
2016-01-191200-133-0650ND
2016-01-261200-133-1100ND
2016-02-021200-133-0945ND
2016-02-021200-205-1210ND
2016-02-091200-133-0930ND
2016-02-091200-133-1130ND
2016-02-161200-133-1040ND
2016-02-231200-133-0730ND
2016-02-241200-011-1215ND
2016-02-271200-159-0840ND
2016-03-011200-133-0710ND
2016-03-081200-133-1320ND
2016-03-151200-133-0810ND
2016-03-231200-133-1050ND
2016-03-291200-133-0820ND
2016-03-291200-159-1000ND
2016-04-051200-133-0730ND
2016-04-121200-133-0840ND
2016-04-191200-133-0715ND
2016-04-191200-159-0945ND
2016-04-261200-133-0835ND
2016-05-031200-133-0745ND
2016-05-101200-133-0740ND
2016-05-121200-205-0840ND
2016-05-171200-133-1100ND
2016-05-251200-011-1135ND
2016-05-251200-133-0945ND
2016-05-251200-133-1210ND
2016-05-261200-159-1015ND
2016-05-311200-133-1045ND
2016-06-071200-205-1330ND
2016-06-081200-133-0850ND
2016-06-141200-133-0815ND
2016-06-221200-133-0920ND
2016-06-281200-133-1000ND
2016-07-051200-133-0935ND
2016-07-061200-205-1305ND
2016-07-121200-133-1045ND
2016-07-191200-133-1045ND
2016-07-211200-205-1225ND
2016-07-261200-133-1125ND
2016-08-021200-133-0710ND
2016-08-021200-205-0735ND
2016-08-091200-133-1045ND
2016-08-161200-133-1045ND
2016-08-171200-011-1010ND
2016-08-231200-133-1005ND
2016-08-301200-133-0825ND
2016-09-061200-133-1310ND
2016-09-061200-205-0725ND
2016-09-131200-133-0805ND
2016-09-201200-133-0820ND
2016-09-271200-133-0715ND
2016-10-041200-133-1300ND
2016-10-041200-205-0945ND
2016-10-111200-133-1220ND
2016-10-181200-133-0820ND
2016-10-251200-133-1030ND
2016-11-011200-133-0635ND
2016-11-081200-133-0845ND
2016-11-081200-205-0740ND
2016-11-161200-133-0720ND
2016-11-211200-133-1115ND
2016-11-221200-133-1320ND
2016-11-291200-011-0845ND
2016-11-291200-133-0750ND
2016-11-291200-159-1005ND
2016-12-061200-133-0730ND
2016-12-061200-205-1115ND
2016-12-131200-133-0725ND
2016-12-201200-133-0725ND
2016-12-271200-133-1000ND
2017-01-031200-133-1045ND
2017-01-031200-205-1040ND
2017-01-101200-133-1145ND
2017-01-181200-205-1235ND
2017-01-191200-133-0735ND
2017-01-241200-133-1040ND
2017-01-301200-159-1015ND
2017-01-311200-133-0815ND
2017-02-071200-133-0755ND
2017-02-071200-205-1150ND
2017-02-141200-133-0730ND
2017-02-161200-159-0940ND
2017-02-211200-011-1140ND
2017-02-211200-133-0730ND
2017-02-211200-133-1210ND
2017-02-281200-133-0715ND
2017-03-071200-133-0725ND
2017-03-071200-205-1315ND
2017-03-101200-159-0920ND
2017-03-141200-133-1303ND
2017-03-211200-133-1049ND
2017-03-281200-133-1342ND
2017-04-041200-133-1209ND
2017-04-041200-205-1219ND
2017-04-111200-133-1152ND
2017-04-181200-133-1217ND
2017-04-251200-133-1210ND
2017-05-021200-133-1245ND
2017-05-091200-011-0940ND
2017-05-091200-133-0747ND
2017-05-161200-133-0912ND
2017-05-171200-133-0941ND
2017-05-231200-133-0832ND
2017-05-301200-133-1308ND
2017-06-061200-133-1234ND
2017-06-131200-133-0728ND
2017-06-201200-133-0736ND
2017-06-221200-159-0830ND
2017-06-271200-133-0936ND
2017-07-041200-133-0805ND
2017-07-101200-159-1135ND
2017-07-111200-133-0803ND
2017-07-121200-205-1000ND
2017-07-181200-133-0725ND
2017-07-251200-133-0818ND
2017-08-011200-133-0825ND
2017-08-011200-133-0940ND
2017-08-081200-133-1251ND
2017-08-151200-133-0727ND
2017-08-211200-011-1010ND
2017-08-221200-133-0914ND
2017-08-291200-133-0802ND
2017-08-291200-159-1215ND
2017-09-051200-133-1225ND
2017-09-121200-133-1243ND
2017-09-191200-133-1316ND
2017-09-261200-133-1225ND
2017-09-271200-159-1030ND
2017-10-031200-133-1235ND
2017-10-101200-133-1218ND
2017-10-171200-133-1330ND
2017-10-201200-159-1000ND
2017-10-241200-133-0751ND
2017-10-311200-133-0728ND
2017-11-031200-159-1050ND
2017-11-071200-133-0738ND
2017-11-141200-133-0738ND
2017-11-201200-011-1000ND
2017-11-201200-133-1040ND
2017-11-211200-133-0904ND
2017-11-281200-133-1209ND
2017-12-051200-133-1206ND
2017-12-121200-133-0710ND
2017-12-191200-133-1200ND
2017-12-261200-133-1059ND
2018-01-021200-133-1151ND
2018-01-091200-133-0917ND
2018-01-161200-133-0859ND
2018-01-231200-133-0843ND
2018-01-301200-133-0948ND
2018-02-061200-011-1040ND
2018-02-061200-133-0905ND
2018-02-071200-133-0930ND
2018-02-131200-133-0820ND
2018-02-201200-133-0734ND
2018-02-271200-133-0800ND
2018-03-061200-133-1109ND
2018-03-131200-133-0723ND
2018-03-201200-133-0931ND
2018-03-271200-133-0901ND
2018-04-031200-133-0912ND
2018-04-101200-133-0908ND
2018-04-171200-133-0905ND
2018-04-241200-133-0906ND
2018-05-011200-133-0943ND
2018-05-081200-133-0736ND
2018-05-081200-133-0907ND
2018-05-151200-133-1221ND
2018-05-221200-133-0952ND
2018-05-231200-011-0925ND
2018-05-291200-133-1325ND
2018-06-051200-133-1239ND
2018-06-121200-133-1220ND
2018-06-191200-133-1251ND
2018-06-261200-133-0721ND
2018-07-031200-133-0724ND
2018-07-101200-133-0720ND
2018-07-171200-133-0717ND
2018-07-241200-133-0707ND
2018-07-311200-133-0723ND
2018-08-071200-133-0655ND
2018-08-141200-133-1251ND
2018-08-161200-011-0940ND
2018-08-161200-133-0747ND
2018-08-211200-133-1215ND
2018-08-281200-133-1229ND
2018-09-041200-133-1021ND
2018-09-111200-133-1212ND
2018-09-181200-133-0737ND
2018-09-251200-133-0748ND
2018-10-021200-133-0732ND
2018-10-091200-133-0721ND
2018-10-161200-133-1155ND
2018-10-231200-133-0737ND
2018-10-301200-133-0856ND
2018-11-061200-011-0842ND
2018-11-151200-133-0917ND
2018-12-041200-133-0849ND
2018-12-111200-133-0912ND
2018-12-181200-133-0952ND
2018-12-251200-133-1004ND
2019-01-011200-133-0927ND
2019-01-081200-133-0923ND
2019-01-151200-133-0901ND
2019-01-221200-133-0811ND
2019-01-291200-133-0735ND
2019-02-051200-133-0810ND
2019-02-111200-133-1011ND
2019-02-121200-133-0917ND
2019-02-131200-011-1115ND
2019-02-191200-133-0815ND
2019-02-261200-133-0840ND
2019-03-051200-133-0728ND
2019-03-121200-133-0841ND
2019-03-191200-133-0919ND
2019-03-261200-133-0859ND
2019-04-021200-133-0846ND
2019-04-091200-133-0841ND
2019-04-161200-133-1252ND
2019-04-231200-133-1150ND
2019-05-011200-133-0805ND
2019-05-071200-133-1338ND
2019-05-141200-133-1242ND
2019-05-211200-011-1012ND
2019-05-211200-133-0647ND
2019-05-221200-133-0945ND
2019-05-281200-133-1227ND
2019-06-041200-133-0759ND
2019-06-111200-133-0907ND
2019-06-181200-133-0844ND
2019-06-251200-133-0750ND
2019-07-021200-133-0750ND
2019-07-091200-133-0809ND
2019-07-161200-133-0853ND
2019-07-241200-133-0747ND
2019-07-301200-133-0843ND
2019-08-061200-133-1047ND
2019-08-121200-011-1028ND
2019-08-131200-133-0907ND
2019-08-131200-133-0951ND
2019-08-201200-133-0857ND
2019-08-271200-133-0746ND
2019-09-031200-133-1010ND
2019-09-101200-133-0923ND
2019-09-171200-133-0913ND
2019-09-241200-133-0908ND
2019-10-011200-133-1213ND
2019-10-081200-133-1219ND
2019-10-151200-133-0858ND
2019-10-221200-133-1231ND
2019-10-291200-133-1235ND
2019-11-051200-133-1249ND
2019-11-071200-011-0958ND
2019-11-071200-133-0852ND
2019-11-121200-133-1208ND
2019-11-191200-133-0759ND
2019-11-261200-133-0726ND