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EWG's Tap Water Database — 2021 UPDATE

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Arsenic

Elsinore Valley Municipal Water District

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.

MORE ABOUT THIS CONTAMINANT

 

232

Samples

1

Samples exceeding legal limit (MCL)

114

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.12 ppb3823ND - 5.30 ppb
20152.44 ppb4631ND - 5.90 ppb
20162.24 ppb4526ND - 9.30 ppb
20171.74 ppb2310ND - 5.60 ppb
20182.28 ppb3314ND - 12.0 ppb
20191.01 ppb4710ND - 5.90 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
2014-02-054790-040-1245ND
2014-02-114790-010-11002.50 ppb
2014-02-114790-037-1225ND
2014-02-274790-040-1002ND
2014-03-054790-040-0838ND
2014-03-104790-010-09102.20 ppb
2014-04-034790-040-11015.30 ppb
2014-04-084790-010-08473.60 ppb
2014-04-084790-041-08535.10 ppb
2014-04-154790-037-10083.20 ppb
2014-04-234790-040-1445ND
2014-05-064790-010-10303.50 ppb
2014-05-064790-041-10154.50 ppb
2014-05-124790-037-08403.10 ppb
2014-05-144790-040-1034ND
2014-06-044790-040-0920ND
2014-06-104790-037-1310ND
2014-06-104790-041-10354.20 ppb
2014-06-264790-038-11053.90 ppb
2014-07-034790-040-1111ND
2014-07-144790-037-13152.80 ppb
2014-07-144790-041-10203.30 ppb
2014-07-284790-010-10503.20 ppb
2014-07-284790-038-1025ND
2014-08-124790-040-09453.40 ppb
2014-08-264790-010-13594.70 ppb
2014-09-044790-040-1243ND
2014-09-154790-037-13302.30 ppb
2014-09-154790-041-12455.30 ppb
2014-09-224790-010-13002.20 ppb
2014-10-014790-040-1213ND
2014-10-134790-010-10253.70 ppb
2014-10-134790-037-1222ND
2014-10-134790-041-09273.70 ppb
2014-12-034790-040-1110ND
2014-12-174790-037-1105ND
2014-12-174790-040-11152.50 ppb
2014-12-174790-041-14202.30 ppb
2015-01-144790-010-14105.20 ppb
2015-01-144790-037-1305ND
2015-01-144790-041-1357ND
2015-02-054790-010-09453.40 ppb
2015-02-054790-037-1235ND
2015-02-054790-041-09353.40 ppb
2015-03-044790-040-1103ND
2015-03-124790-010-11203.20 ppb
2015-03-124790-037-1040ND
2015-03-124790-041-11003.90 ppb
2015-04-084790-010-10303.40 ppb
2015-04-084790-037-1235ND
2015-04-084790-041-10453.90 ppb
2015-04-084790-042-13155.20 ppb
2015-05-074790-038-1350ND
2015-05-084790-010-10002.90 ppb
2015-05-124790-037-1040ND
2015-05-124790-041-10453.90 ppb
2015-06-044790-040-0925ND
2015-06-104790-010-11052.70 ppb
2015-06-104790-037-1325ND
2015-06-104790-041-10555.20 ppb
2015-07-014790-040-1120ND
2015-07-084790-010-13102.90 ppb
2015-07-084790-037-11053.30 ppb
2015-07-084790-041-13405.90 ppb
2015-08-044790-040-1120ND
2015-08-174790-037-1040ND
2015-08-204790-010-11402.90 ppb
2015-08-204790-041-12183.20 ppb
2015-08-244790-040-10502.10 ppb
2015-09-024790-040-12152.30 ppb
2015-09-094790-010-10303.30 ppb
2015-09-094790-037-1235ND
2015-09-094790-041-10204.50 ppb
2015-10-084790-040-09033.10 ppb
2015-10-154790-010-10203.50 ppb
2015-10-154790-037-1115ND
2015-10-154790-041-10105.20 ppb
2015-11-044790-040-13453.80 ppb
2015-11-184790-010-10503.70 ppb
2015-11-184790-037-12452.50 ppb
2015-11-184790-041-11054.90 ppb
2015-12-034790-040-10202.20 ppb
2015-12-104790-040-13003.10 ppb
2015-12-174790-010-10353.60 ppb
2016-01-064790-037-1040ND
2016-01-074790-041-13204.00 ppb
2016-04-014790-040-11006.50 ppb
2016-04-064790-010-0955ND
2016-04-064790-037-1115ND
2016-04-064790-041-09252.30 ppb
2016-04-064790-042-1050ND
2016-05-054790-037-11002.50 ppb
2016-05-054790-041-13105.70 ppb
2016-05-184790-010-13453.40 ppb
2016-05-254790-042-1002ND
2016-05-264790-052-1030ND
2016-06-034790-010-14152.90 ppb
2016-06-034790-037-0800ND
2016-06-034790-041-08555.00 ppb
2016-07-124790-040-10589.30 ppb
2016-08-094790-040-10524.10 ppb
2016-08-114790-010-11102.10 ppb
2016-08-114790-037-1220ND
2016-08-124790-041-10553.90 ppb
2016-08-124790-042-11252.80 ppb
2016-08-174790-040-12304.50 ppb
2016-08-254790-053-09102.20 ppb
2016-09-074790-010-10453.40 ppb
2016-09-074790-037-11352.00 ppb
2016-09-074790-040-10014.90 ppb
2016-09-084790-053-0815ND
2016-09-144790-041-10004.30 ppb
2016-10-124790-010-11453.20 ppb
2016-10-124790-053-1055ND
2016-10-134790-037-13302.00 ppb
2016-10-264790-041-09454.70 ppb
2016-10-264790-042-1030ND
2016-11-094790-010-09344.30 ppb
2016-11-094790-041-11084.90 ppb
2016-11-174790-038-1450ND
2016-11-174790-038-1500ND
2016-11-184790-053-0807ND
2016-11-234790-037-1300ND
2016-11-234790-042-1330ND
2016-12-084790-010-13402.70 ppb
2016-12-084790-041-13183.20 ppb
2016-12-144790-053-1125ND
2016-12-194790-037-1335ND
2016-12-194790-042-1420ND
2017-01-254790-041-10584.30 ppb
2017-02-154790-053-1020ND
2017-04-129590-052-1345ND
2017-04-289590-002-1310ND
2017-06-149590-041-11085.60 ppb
2017-06-149590-052-1115ND
2017-06-149590-053-1100ND
2017-06-159590-042-15003.70 ppb
2017-07-129590-037-1305ND
2017-07-139590-041-10055.40 ppb
2017-07-199590-042-11005.00 ppb
2017-08-029590-010-15052.90 ppb
2017-08-029590-037-1244ND
2017-08-029590-041-15255.00 ppb
2017-09-289590-037-1445ND
2017-09-289590-038-1430ND
2017-10-059590-010-11163.20 ppb
2017-10-129590-037-1010ND
2017-10-129590-038-10352.70 ppb
2017-11-159590-053-1023ND
2017-11-299590-037-1457ND
2017-12-139590-037-13302.20 ppb
2017-12-209590-053-0940ND
2018-01-199590-037-1006ND
2018-02-079590-053-1050ND
2018-02-149590-037-13353.80 ppb
2018-03-149590-041-14405.40 ppb
2018-03-269590-053-1510ND
2018-03-289590-037-1405ND
2018-03-289590-042-14207.40 ppb
2018-04-049590-010-10257.50 ppb
2018-04-049590-041-10146.00 ppb
2018-04-049590-053-1300ND
2018-04-099590-038-14402.60 ppb
2018-05-014790-038-1420ND
2018-05-074790-010-14284.30 ppb
2018-05-174790-010-15422.40 ppb
2018-05-174790-041-15335.00 ppb
2018-05-234790-010-1413ND
2018-06-074790-002-1128ND
2018-06-074790-010-10574.30 ppb
2018-07-104790-010-10204.60 ppb
2018-08-044790-040-0833ND
2018-08-044790-045-0832ND
2018-08-244790-040-0916ND
2018-08-244790-045-09062.50 ppb
2018-09-124790-040-1120ND
2018-09-274790-040-1007ND
2018-10-054790-040-0950ND
2018-10-104790-040-1310ND
2018-10-304790-042-151012.0 ppb
2018-11-144790-040-1050ND
2018-11-144790-045-1043ND
2018-12-034790-040-1410ND
2018-12-034790-042-13377.40 ppb
2018-12-034790-045-1401ND
2019-01-074790-040-1245ND
2019-01-074790-042-11005.70 ppb
2019-01-074790-045-1235ND
2019-01-244790-053-0900ND
2019-01-254790-053-0818ND
2019-02-274790-053-1328ND
2019-03-064790-041-13424.30 ppb
2019-03-114790-040-1031ND
2019-03-114790-045-1024ND
2019-03-134790-040-1400ND
2019-03-134790-041-10295.90 ppb
2019-03-134790-042-13423.00 ppb
2019-03-204790-041-11125.20 ppb
2019-03-264790-038-1004ND
2019-03-264790-038-1428ND
2019-03-274790-038-1008ND
2019-04-294790-053-1153ND
2019-05-074790-053-1434ND
2019-06-044790-053-1138ND
2019-06-074790-052-1045ND
2019-06-114790-053-1110ND
2019-06-184790-037-1128ND
2019-07-104790-052-1230ND
2019-07-174790-053-1018ND
2019-08-194790-002-1345ND
2019-08-284790-052-1510ND
2019-08-284790-053-1150ND
2019-09-104790-053-1022ND
2019-09-124790-038-1250ND
2019-09-184790-037-1311ND
2019-09-184790-052-1214ND
2019-10-024790-052-1141ND
2019-10-024790-053-1111ND
2019-10-104790-002-0930ND
2019-11-054790-052-0936ND
2019-11-054790-053-1012ND
2019-11-194790-038-1133ND
2019-12-024790-052-0850ND
2019-12-024790-053-0909ND
2019-12-044790-041-09045.10 ppb
2019-12-064790-037-1145ND
2019-12-124790-037-1110ND
2019-12-124790-042-13503.70 ppb
2019-12-174790-010-13065.10 ppb
2019-12-174790-037-1041ND
2019-12-174790-042-08354.20 ppb
2019-12-184790-010-13065.10 ppb