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EWG's Tap Water Database — 2019 UPDATE

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Arsenic

City of Corona

Arsenic is a potent carcinogen and common contaminant in drinking water. Arsenic causes thousands of cases of cancer each year in the U.S. Click here to read more about arsenic.

 

126

Samples

0

Samples exceeding legal limit (MCL)

37

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.362 ppb264ND - 2.50 ppb
20130.367 ppb274ND - 2.60 ppb
20141.49 ppb2912ND - 7.20 ppb
2015ND10ND - 2.30 ppb
20161.09 ppb229ND - 3.20 ppb
20170.995 ppb218ND - 4.70 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.004 ppb

The EWG Health Guideline of 0.004 ppb for arsenic 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.

EPA Maximum Contaminant
Level (MCL) 10 ppb

The legal limit for arsenic, established in 2001, was based on costs for arsenic removal, as calculated at the time that the standard was set. This limit does not fully protect against the risk of cancer due to arsenic exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2012-01-054790-062-1040ND
2012-03-064790-062-1005ND
2012-06-124790-062-1330ND
2012-06-134790-003-11452.40 ppb
2012-06-134790-013-1115ND
2012-06-134790-022-1030ND
2012-06-134790-023-1230ND
2012-06-134790-030-1200ND
2012-06-134790-033-1300ND
2012-06-204790-014-1550ND
2012-06-204790-015-1450ND
2012-06-204790-027-0930ND
2012-06-204790-032-1035ND
2012-06-204790-038-1310ND
2012-06-214790-019-0950ND
2012-06-214790-034-1300ND
2012-06-214790-043-12202.00 ppb
2012-06-214790-052-10402.50 ppb
2012-06-224790-039-0730ND
2012-06-274790-024-0930ND
2012-06-274790-029-1400ND
2012-06-274790-031-1450ND
2012-06-274790-054-11202.50 ppb
2012-06-274790-056-1030ND
2012-09-054790-062-1055ND
2012-12-044790-055-0900ND
2013-01-094790-062-1215ND
2013-02-064790-021-0930ND
2013-02-064790-027-1330ND
2013-02-064790-030-1130ND
2013-02-064790-039-1130ND
2013-02-134790-052-1510ND
2013-02-134790-054-1350ND
2013-05-014790-024-1230ND
2013-05-014790-038-1050ND
2013-05-014790-055-1245ND
2013-05-084790-003-14402.20 ppb
2013-05-084790-022-1400ND
2013-05-084790-023-09102.60 ppb
2013-05-164790-019-1340ND
2013-05-164790-034-0915ND
2013-05-164790-043-10502.50 ppb
2013-06-114790-062-1345ND
2013-06-264790-028-09002.60 ppb
2013-08-079590-032-0940ND
2013-08-159590-033-0900ND
2013-08-159590-056-1435ND
2013-08-219590-029-1002ND
2013-08-229590-013-0940ND
2013-08-229590-014-1500ND
2013-08-229590-015-1402ND
2013-08-229590-031-0825ND
2013-09-109590-062-1330ND
2014-01-079590-062-1330ND
2014-02-129590-021-0900ND
2014-02-129590-027-1020ND
2014-02-129590-028-1450ND
2014-02-129590-039-11004.20 ppb
2014-02-129590-052-11452.20 ppb
2014-02-129590-054-1355ND
2014-02-269590-030-0730ND
2014-03-259590-062-1455ND
2014-05-149590-024-1325ND
2014-05-149590-038-1035ND
2014-05-149590-043-0915ND
2014-05-149590-055-1145ND
2014-05-159590-019-1155ND
2014-05-159590-022-0850ND
2014-05-159590-023-10052.10 ppb
2014-05-159590-034-1500ND
2014-06-179590-062-1340ND
2014-07-249590-055-08303.40 ppb
2014-08-139590-015-09304.70 ppb
2014-08-139590-031-14552.60 ppb
2014-08-139590-032-11003.50 ppb
2014-08-139590-033-13154.40 ppb
2014-08-219590-029-09002.30 ppb
2014-08-269590-003-14004.10 ppb
2014-08-279590-014-13152.60 ppb
2014-08-279590-056-1415ND
2014-08-289590-013-10307.20 ppb
2014-09-169590-062-0830ND
2015-06-01ND*
2016-03-229590-062-1215ND
2016-04-139590-027-09502.10 ppb
2016-04-139590-028-0800ND
2016-04-139590-030-0850ND
2016-04-219590-054-13402.80 ppb
2016-06-149590-062-1430ND
2016-07-209590-039-1045ND
2016-08-189590-003-10002.80 ppb
2016-08-189590-023-1050ND
2016-08-189590-038-1400ND
2016-08-239590-024-14303.20 ppb
2016-08-249590-019-10302.40 ppb
2016-08-249590-034-0900ND
2016-08-249590-043-14302.70 ppb
2016-09-139590-062-1020ND
2016-10-119590-031-15302.00 ppb
2016-10-129590-032-1430ND
2016-10-209590-029-1400ND
2016-10-279590-014-0915ND
2016-10-279590-015-1020ND
2016-10-279590-033-14003.00 ppb
2016-10-279590-056-08403.00 ppb
2017-01-129590-062-1520ND
2017-03-219590-062-1540ND
2017-04-129590-030-10002.10 ppb
2017-04-129590-054-14002.80 ppb
2017-04-209590-027-14002.80 ppb
2017-04-209590-038-0920ND
2017-04-209590-039-1500ND
2017-06-069590-062-1550ND
2017-08-099590-019-1030ND
2017-08-099590-023-0945ND
2017-08-099590-024-14004.70 ppb
2017-08-099590-043-1530ND
2017-08-109590-034-12202.10 ppb
2017-09-199590-062-1500ND
2017-10-129590-015-1500ND
2017-10-129590-031-09302.20 ppb
2017-10-129590-032-10302.20 ppb
2017-10-199590-014-1030ND
2017-10-199590-029-1500ND
2017-10-199590-056-14002.00 ppb
2017-10-269590-033-1000ND

* Sample result is taken from the system's CCR report.