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EWG's Tap Water Database — 2021 UPDATE

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Arsenic

Elk Grove Water Service

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

 

383

Samples

22

Samples exceeding legal limit (MCL)

205

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.33 ppb4015ND - 13.0 ppb
20152.44 ppb4420ND - 12.0 ppb
20162.66 ppb4118ND - 12.0 ppb
20172.36 ppb7840ND - 13.0 ppb
20182.92 ppb9166ND - 13.0 ppb
20191.98 ppb8946ND - 12.0 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
2014-01-075810-015-0937ND
2014-01-075810-019-0926ND
2014-01-145810-016-1008ND
2014-01-215810-017-1000ND
2014-01-215810-020-101513.0 ppb
2014-02-045810-009-11152.30 ppb
2014-02-255810-019-1108ND
2014-03-045810-003-11202.40 ppb
2014-03-045810-008-11455.60 ppb
2014-03-115810-019-0819ND
2014-04-025810-015-1050ND
2014-04-025810-019-1035ND
2014-04-085810-008-09254.90 ppb
2014-04-085810-017-1149ND
2014-04-155810-003-12153.10 ppb
2014-04-155810-016-1110ND
2014-04-155810-020-101911.0 ppb
2014-04-225810-009-11343.30 ppb
2014-05-135810-019-1025ND
2014-06-105810-019-0905ND
2014-07-015810-017-0945ND
2014-07-015810-019-0929ND
2014-07-085810-016-0905ND
2014-07-155810-015-0900ND
2014-07-175810-020-121013.0 ppb
2014-07-225810-009-10003.10 ppb
2014-07-295810-003-09404.30 ppb
2014-08-055810-019-0805ND
2014-08-125810-008-08406.20 ppb
2014-09-025810-019-0920ND
2014-10-145810-019-1025ND
2014-10-215810-009-11333.90 ppb
2014-10-285810-008-10035.90 ppb
2014-10-285810-015-0940ND
2014-10-285810-016-0950ND
2014-11-045810-003-0930ND
2014-11-045810-017-0900ND
2014-11-045810-020-090811.0 ppb
2014-11-105810-019-1110ND
2014-12-095810-019-0825ND
2015-01-065810-003-0938ND
2015-01-065810-015-0920ND
2015-01-065810-019-0855ND
2015-01-135810-017-0950ND
2015-01-135810-020-100012.0 ppb
2015-01-205810-016-08253.00 ppb
2015-01-225810-008-09054.40 ppb
2015-01-225810-009-0854ND
2015-02-035810-019-0900ND
2015-03-035810-019-08104.80 ppb
2015-04-085810-003-1130ND
2015-04-085810-015-1115ND
2015-04-085810-019-1100ND
2015-04-145810-009-09392.70 ppb
2015-04-145810-016-1121ND
2015-04-215810-008-10204.10 ppb
2015-04-215810-017-0940ND
2015-04-215810-020-095012.0 ppb
2015-05-055810-019-0945ND
2015-06-025810-019-08502.10 ppb
2015-07-075810-003-09462.30 ppb
2015-07-075810-009-09263.20 ppb
2015-07-075810-016-0848ND
2015-07-075810-017-0815ND
2015-07-075810-019-0806ND
2015-07-145810-015-1020ND
2015-07-145810-020-103512.0 ppb
2015-07-215810-008-1157ND
2015-08-045810-019-1037ND
2015-08-115810-014-11503.90 ppb
2015-09-085810-014-09253.30 ppb
2015-09-085810-019-0822ND
2015-10-065810-003-10352.50 ppb
2015-10-065810-014-14056.30 ppb
2015-10-065810-015-0910ND
2015-10-065810-019-1150ND
2015-10-135810-016-1136ND
2015-10-205810-009-11082.50 ppb
2015-10-205810-017-1056ND
2015-10-205810-020-104312.0 ppb
2015-10-275810-008-10383.30 ppb
2015-11-035810-014-12066.30 ppb
2015-11-035810-019-10444.80 ppb
2015-12-015810-019-0846ND
2016-01-125810-016-0941ND
2016-01-125810-019-0925ND
2016-01-265810-017-0916ND
2016-01-265810-020-092712.0 ppb
2016-02-025810-019-10275.10 ppb
2016-02-095810-009-09553.60 ppb
2016-02-165810-008-12485.20 ppb
2016-03-015810-003-09582.10 ppb
2016-03-015810-019-0940ND
2016-03-225810-015-0926ND
2016-04-055810-015-1045ND
2016-04-055810-019-1030ND
2016-04-125810-009-14014.10 ppb
2016-05-035810-008-12065.40 ppb
2016-05-035810-019-1027ND
2016-05-105810-003-1006ND
2016-05-105810-017-0852ND
2016-05-105810-020-090711.0 ppb
2016-06-075810-019-0832ND
2016-06-285810-016-0943ND
2016-07-055810-015-0947ND
2016-07-055810-017-0936ND
2016-07-055810-019-0928ND
2016-07-125810-008-09377.30 ppb
2016-07-125810-009-09204.00 ppb
2016-07-195810-020-084512.0 ppb
2016-07-265810-003-09134.20 ppb
2016-08-015810-008-10557.00 ppb
2016-08-025810-016-1100ND
2016-08-025810-019-1010ND
2016-09-065810-019-09502.30 ppb
2016-09-135810-008-11094.60 ppb
2016-10-045810-019-1224ND
2016-10-115810-003-1209ND
2016-10-115810-009-09582.70 ppb
2016-10-115810-015-0924ND
2016-10-115810-016-0937ND
2016-10-185810-008-12404.60 ppb
2016-10-185810-017-0854ND
2016-10-185810-020-090412.0 ppb
2016-11-015810-019-0908ND
2017-01-055810-016-1130ND
2017-01-055810-020-123012.0 ppb
2017-01-315810-015-1100ND
2017-01-315810-017-0940ND
2017-01-315810-019-1015ND
2017-02-145810-019-1025ND
2017-02-215810-009-09303.90 ppb
2017-02-275810-003-10452.80 ppb
2017-03-075810-008-12155.40 ppb
2017-03-075810-019-0816ND
2017-04-045810-019-0900ND
2017-04-115810-009-12323.60 ppb
2017-04-115810-016-1032ND
2017-04-255810-003-09453.30 ppb
2017-04-255810-015-0905ND
2017-05-025810-008-09185.00 ppb
2017-05-025810-019-0855ND
2017-05-165810-017-1020ND
2017-06-065810-019-0903ND
2017-07-035810-019-0916ND
2017-07-115810-014-1535ND
2017-07-125810-014-1318ND
2017-07-135810-014-15282.40 ppb
2017-07-145810-014-10492.30 ppb
2017-07-155810-014-10144.10 ppb
2017-07-165810-014-10002.90 ppb
2017-07-175810-014-11204.60 ppb
2017-07-185810-014-10084.00 ppb
2017-07-185810-015-0904ND
2017-07-185810-017-0852ND
2017-07-195810-014-12554.60 ppb
2017-07-205810-014-1437ND
2017-07-245810-014-1435ND
2017-07-255810-003-1201ND
2017-07-255810-009-12132.50 ppb
2017-07-255810-016-1013ND
2017-07-265810-014-1440ND
2017-07-275810-014-1615ND
2017-08-015810-014-1050ND
2017-08-015810-019-0930ND
2017-08-025810-014-15422.40 ppb
2017-08-035810-014-12312.30 ppb
2017-08-045810-014-1135ND
2017-08-055810-014-1054ND
2017-08-065810-014-1043ND
2017-08-075810-014-11004.30 ppb
2017-08-085810-014-09554.90 ppb
2017-08-155810-014-10153.30 ppb
2017-08-225810-014-10442.90 ppb
2017-08-295810-014-0949ND
2017-09-055810-014-11372.40 ppb
2017-09-075810-014-1230ND
2017-09-125810-014-11452.20 ppb
2017-09-125810-019-0858ND
2017-09-195810-014-1100ND
2017-09-265810-014-10263.10 ppb
2017-10-035810-014-10464.40 ppb
2017-10-035810-019-0800ND
2017-10-105810-014-11284.70 ppb
2017-10-105810-015-0904ND
2017-10-105810-017-0847ND
2017-10-175810-003-08303.10 ppb
2017-10-175810-009-08203.50 ppb
2017-10-175810-014-10496.40 ppb
2017-10-245810-014-10384.40 ppb
2017-10-245810-016-0930ND
2017-10-315810-014-10423.90 ppb
2017-11-075810-014-10415.90 ppb
2017-11-145810-014-11114.20 ppb
2017-11-145810-019-0915ND
2017-11-215810-014-10395.90 ppb
2017-11-285810-014-10166.60 ppb
2017-12-055810-014-10226.90 ppb
2017-12-055810-019-0755ND
2017-12-125810-014-10037.80 ppb
2017-12-195810-014-10238.70 ppb
2017-12-265810-014-11203.80 ppb
2017-12-265810-020-100213.0 ppb
2018-01-025810-014-11364.70 ppb
2018-01-105810-014-11456.20 ppb
2018-01-105810-015-0851ND
2018-01-105810-019-0832ND
2018-01-165810-014-11154.10 ppb
2018-01-235810-014-10354.90 ppb
2018-01-305810-003-08013.00 ppb
2018-01-305810-009-12434.10 ppb
2018-01-305810-014-11273.70 ppb
2018-02-065810-014-10503.80 ppb
2018-02-065810-017-0849ND
2018-02-065810-019-0833ND
2018-02-125810-014-11503.00 ppb
2018-02-125810-014-13052.60 ppb
2018-02-125810-014-13512.70 ppb
2018-02-125810-014-14552.40 ppb
2018-02-135810-016-0936ND
2018-02-145810-014-14093.50 ppb
2018-02-145810-014-14483.10 ppb
2018-02-205810-014-11363.50 ppb
2018-02-205810-020-090411.0 ppb
2018-02-215810-014-11213.80 ppb
2018-02-215810-014-1231ND
2018-02-215810-014-1305ND
2018-02-215810-014-1358ND
2018-02-275810-014-11042.80 ppb
2018-03-065810-014-10593.40 ppb
2018-03-065810-019-08156.20 ppb
2018-03-135810-014-10362.50 ppb
2018-03-205810-014-10132.90 ppb
2018-03-275810-014-11323.90 ppb
2018-04-035810-014-11144.40 ppb
2018-04-035810-016-0910ND
2018-04-035810-020-092613.0 ppb
2018-04-105810-009-09003.20 ppb
2018-04-105810-014-13013.70 ppb
2018-04-105810-015-0845ND
2018-04-105810-019-0826ND
2018-04-175810-003-08263.80 ppb
2018-04-175810-014-10463.60 ppb
2018-04-175810-017-0801ND
2018-04-245810-014-11503.20 ppb
2018-05-015810-014-10053.10 ppb
2018-05-085810-014-09413.20 ppb
2018-05-085810-019-0830ND
2018-05-175810-014-12544.00 ppb
2018-05-225810-014-08533.30 ppb
2018-05-295810-014-12312.50 ppb
2018-06-055810-014-08383.00 ppb
2018-06-055810-019-0822ND
2018-06-125810-014-10132.70 ppb
2018-06-195810-014-08162.80 ppb
2018-06-265810-014-11083.00 ppb
2018-06-285810-008-14105.30 ppb
2018-07-035810-014-13213.20 ppb
2018-07-035810-015-0809ND
2018-07-035810-016-0825ND
2018-07-035810-019-0751ND
2018-07-105810-003-11352.20 ppb
2018-07-105810-014-13392.50 ppb
2018-07-175810-014-11062.50 ppb
2018-07-175810-017-0801ND
2018-07-175810-020-082011.0 ppb
2018-07-245810-008-09456.70 ppb
2018-07-245810-009-09254.10 ppb
2018-07-245810-014-11562.80 ppb
2018-07-315810-014-09013.00 ppb
2018-08-075810-014-10133.10 ppb
2018-08-075810-019-0819ND
2018-08-145810-014-12112.90 ppb
2018-08-215810-014-12352.10 ppb
2018-08-285810-014-12263.00 ppb
2018-09-045810-014-13463.60 ppb
2018-09-045810-019-0910ND
2018-09-125810-014-1051ND
2018-09-185810-014-10112.60 ppb
2018-09-255810-014-11153.70 ppb
2018-10-025810-014-11513.90 ppb
2018-10-025810-019-0755ND
2018-10-095810-008-08596.90 ppb
2018-10-095810-009-09154.80 ppb
2018-10-095810-014-12052.50 ppb
2018-10-165810-014-11163.60 ppb
2018-10-165810-016-0937ND
2018-10-235810-014-11033.30 ppb
2018-10-235810-017-0825ND
2018-10-305810-015-0834ND
2018-10-305810-020-081612.0 ppb
2018-11-055810-014-12363.30 ppb
2018-11-135810-014-13023.70 ppb
2018-12-275810-003-04302.70 ppb
2019-01-025810-014-1027ND
2019-01-085810-014-11272.40 ppb
2019-01-085810-017-0845ND
2019-01-085810-019-0832ND
2019-01-155810-014-1305ND
2019-01-155810-016-0850ND
2019-01-225810-014-1125ND
2019-01-225810-015-0900ND
2019-01-295810-008-10573.90 ppb
2019-01-295810-014-0959ND
2019-01-295810-020-075012.0 ppb
2019-02-055810-009-08234.10 ppb
2019-02-055810-014-1041ND
2019-02-055810-019-0808ND
2019-02-125810-014-1143ND
2019-02-195810-014-1012ND
2019-02-265810-014-1119ND
2019-03-055810-014-1050ND
2019-03-055810-019-0834ND
2019-03-125810-014-1026ND
2019-03-205810-014-1105ND
2019-03-295810-014-10482.00 ppb
2019-04-025810-014-10432.30 ppb
2019-04-025810-015-0904ND
2019-04-095810-014-1034ND
2019-04-095810-016-0823ND
2019-04-095810-019-0807ND
2019-04-165810-014-1038ND
2019-04-165810-017-0805ND
2019-04-165810-020-081812.0 ppb
2019-04-235810-008-09405.70 ppb
2019-04-235810-014-1143ND
2019-04-305810-014-10382.30 ppb
2019-05-075810-009-12453.30 ppb
2019-05-075810-014-1052ND
2019-05-075810-019-0823ND
2019-05-135810-014-11582.10 ppb
2019-05-205810-014-0951ND
2019-05-285810-014-1106ND
2019-06-045810-014-09143.10 ppb
2019-06-045810-019-0819ND
2019-06-115810-014-11382.50 ppb
2019-06-175810-014-10493.20 ppb
2019-06-255810-014-1210ND
2019-07-025810-008-08334.50 ppb
2019-07-025810-014-10462.30 ppb
2019-07-025810-015-0815ND
2019-07-025810-016-0932ND
2019-07-025810-019-0804ND
2019-07-095810-009-08562.80 ppb
2019-07-095810-014-11022.10 ppb
2019-07-095810-017-0825ND
2019-07-095810-020-084512.0 ppb
2019-07-155810-014-10012.00 ppb
2019-07-235810-014-11162.70 ppb
2019-07-305810-014-11262.40 ppb
2019-08-065810-014-12063.70 ppb
2019-08-065810-019-0822ND
2019-08-125810-014-14552.80 ppb
2019-08-195810-014-10153.50 ppb
2019-08-265810-014-15303.00 ppb
2019-09-035810-019-0935ND
2019-09-045810-014-09502.90 ppb
2019-09-095810-014-11212.90 ppb
2019-09-165810-014-12032.90 ppb
2019-09-235810-014-14372.40 ppb
2019-09-305810-014-10352.90 ppb
2019-10-015810-015-1025ND
2019-10-015810-017-1010ND
2019-10-015810-019-0940ND
2019-10-075810-014-12463.70 ppb
2019-10-085810-008-12364.90 ppb
2019-10-155810-014-09073.30 ppb
2019-10-155810-020-101612.0 ppb
2019-10-215810-014-10093.60 ppb
2019-10-225810-009-09003.30 ppb
2019-10-225810-016-0840ND
2019-10-285810-014-12323.80 ppb
2019-11-055810-014-10062.20 ppb
2019-11-055810-019-1226ND
2019-11-125810-014-09532.50 ppb
2019-11-185810-014-13403.70 ppb
2019-11-255810-014-11223.30 ppb
2019-12-025810-014-08302.90 ppb
2019-12-035810-019-0931ND
2019-12-095810-014-1122ND
2019-12-165810-014-10122.90 ppb
2019-12-235810-014-10182.90 ppb
2019-12-305810-014-10332.50 ppb