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EWG's Tap Water Database — 2021 UPDATE

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Arsenic

Soquel Creek 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

 

206

Samples

0

Samples exceeding legal limit (MCL)

45

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.523 ppb328ND - 3.30 ppb
20150.180 ppb354ND - 2.20 ppb
20160.368 ppb3812ND - 2.00 ppb
20170.0488 ppb411ND - 2.00 ppb
20180.224 ppb336ND - 1.60 ppb
20190.685 ppb2714ND - 3.40 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
2014-01-091644-035-0900ND
2014-01-161644-048-1342ND
2014-02-201644-035-1120ND
2014-02-241644-048-1200ND
2014-03-181644-035-14262.20 ppb
2014-03-191644-048-0842ND
2014-03-191644-048-0855ND
2014-04-181644-048-0853ND
2014-04-231644-035-1147ND
2014-05-081644-035-13373.30 ppb
2014-05-211644-048-08522.20 ppb
2014-06-051644-035-1216ND
2014-06-061644-048-1330ND
2014-07-151644-048-1309ND
2014-07-231644-035-09572.10 ppb
2014-08-061644-035-0847ND
2014-08-299576-048-08370.640 ppb
2014-09-171644-048-1347ND
2014-09-221644-004-0950ND
2014-09-221644-005-1015ND
2014-09-221644-036-1340ND
2014-09-231644-035-14172.10 ppb
2014-09-231644-049-0935ND
2014-10-141644-047-0917ND
2014-10-151644-007-1440ND
2014-10-161644-012-1330ND
2014-10-161644-022-1055ND
2014-10-161644-037-1122ND
2014-11-181644-035-11402.10 ppb
2014-11-201644-048-1033ND
2014-12-021644-035-11322.10 ppb
2014-12-021644-048-1240ND
2015-01-151644-035-1329ND
2015-01-151644-048-0913ND
2015-02-125806-054-0911ND
2015-02-171644-048-1254ND
2015-02-191644-035-1503ND
2015-03-181644-048-1500ND
2015-03-201644-035-1410ND
2015-04-075806-014-1505ND
2015-04-211644-035-0825ND
2015-04-301644-048-1302ND
2015-05-061644-035-15532.10 ppb
2015-05-131644-048-1049ND
2015-07-161644-035-12032.20 ppb
2015-07-271644-048-0752ND
2015-08-051644-035-1439ND
2015-08-051644-048-0929ND
2015-09-181644-048-1150ND
2015-09-211644-004-0935ND
2015-09-211644-035-1102ND
2015-09-221644-005-1407ND
2015-09-221644-049-1433ND
2015-10-151644-037-1220ND
2015-10-151644-047-1440ND
2015-10-191644-014-1342ND
2015-10-201644-048-1400ND
2015-10-201644-054-1140ND
2015-10-211644-035-1351ND
2015-10-271644-007-0947ND
2015-10-271644-012-0919ND
2015-11-051644-036-1340ND
2015-11-181644-035-1026ND
2015-12-081644-048-1319ND
2015-12-111644-035-1552ND
2015-12-242385-052-12021.000 ppb
2015-12-242385-052-12121.000 ppb
2016-01-222385-052-11031.000 ppb
2016-01-222385-052-11041.000 ppb
2016-01-222385-052-12111.000 ppb
2016-01-222385-052-12121.000 ppb
2016-01-222385-052-12151.000 ppb
2016-01-222385-052-12161.000 ppb
2016-01-281644-048-1042ND
2016-02-011644-035-1455ND
2016-02-111644-048-1325ND
2016-03-181644-035-12172.00 ppb
2016-04-082385-036-13191.000 ppb
2016-04-082385-036-13201.000 ppb
2016-04-082385-052-13101.000 ppb
2016-04-082385-052-13111.000 ppb
2016-05-261644-035-12432.00 ppb
2016-06-211644-035-1045ND
2016-07-131644-035-1406ND
2016-08-301644-035-1504ND
2016-09-191644-049-1105ND
2016-09-201644-004-0828ND
2016-09-201644-005-0848ND
2016-09-201644-036-0902ND
2016-09-201644-052-1150ND
2016-09-201644-053-1158ND
2016-09-211644-035-1442ND
2016-10-181644-007-1120ND
2016-10-181644-037-1230ND
2016-10-191644-012-1004ND
2016-10-191644-022-1323ND
2016-10-201644-014-0920ND
2016-10-201644-047-1428ND
2016-10-261644-035-1328ND
2016-10-261644-048-1230ND
2016-10-271644-054-1041ND
2016-11-211644-035-1349ND
2016-11-211644-048-1157ND
2016-12-211644-035-1511ND
2016-12-211644-048-0955ND
2017-01-231644-035-1508ND
2017-01-261644-005-1148ND
2017-01-261644-058-1237ND
2017-01-311644-048-0952ND
2017-02-021644-005-0940ND
2017-02-021644-058-1019ND
2017-02-071644-035-1013ND
2017-02-141644-048-1100ND
2017-03-241644-035-1137ND
2017-03-281644-048-1044ND
2017-04-171644-048-1405ND
2017-04-201644-035-1436ND
2017-05-161644-013-1425ND
2017-05-171644-035-1504ND
2017-05-221644-048-1509ND
2017-06-121644-035-1624ND
2017-06-151644-048-1500ND
2017-07-191644-035-12122.00 ppb
2017-07-251644-048-1438ND
2017-08-091644-035-1333ND
2017-08-151644-048-1219ND
2017-08-221644-004-1050ND
2017-09-131644-005-1234ND
2017-09-131644-036-1407ND
2017-09-181644-035-1231ND
2017-09-181644-048-1404ND
2017-09-191644-049-1109ND
2017-09-191644-053-1049ND
2017-10-031644-054-1340ND
2017-10-041644-037-1155ND
2017-10-051644-035-1243ND
2017-10-051644-047-1102ND
2017-10-101644-022-1311ND
2017-10-121644-012-0733ND
2017-10-121644-014-1335ND
2017-10-131644-048-1156ND
2017-10-241644-007-1033ND
2017-10-241644-013-1106ND
2017-11-211644-035-1353ND
2017-11-281644-048-1545ND
2017-12-261644-048-1414ND
2018-01-251644-048-1354ND
2018-01-291644-035-1127ND
2018-02-221644-035-1455ND
2018-02-221644-048-1134ND
2018-03-051644-048-1127ND
2018-03-091644-035-1026ND
2018-04-181644-048-1014ND
2018-04-201644-035-1251ND
2018-05-081644-048-1125ND
2018-05-091644-035-0934ND
2018-06-252385-048-1156ND
2018-06-262385-035-13151.20 ppb
2018-07-192385-048-0902ND
2018-07-252385-035-11301.10 ppb
2018-08-142385-035-07391.10 ppb
2018-08-282385-048-0904ND
2018-09-041644-054-1127ND
2018-09-132385-048-1511ND
2018-09-172385-035-15261.000 ppb
2018-09-195810-005-0944ND
2018-09-195810-036-0929ND
2018-09-195810-049-1433ND
2018-10-152385-035-10301.40 ppb
2018-10-165810-007-1002ND
2018-10-165810-012-0903ND
2018-10-165810-013-0846ND
2018-10-165810-037-1102ND
2018-10-175810-014-1355ND
2018-10-175810-022-1205ND
2018-10-175810-047-1234ND
2018-10-302385-048-1011ND
2018-12-102385-048-1352ND
2018-12-122385-035-15371.60 ppb
2019-01-232385-035-15551.40 ppb
2019-01-232385-048-10350.600 ppb
2019-02-122385-048-1150ND
2019-02-142385-035-12021.10 ppb
2019-03-212385-035-13111.10 ppb
2019-03-282385-048-1001ND
2019-04-252385-035-15341.30 ppb
2019-06-252385-035-10031.40 ppb
2019-09-182385-035-13290.900 ppb
2019-09-232385-048-1024ND
2019-09-242385-049-0928ND
2019-09-252385-005-08320.700 ppb
2019-09-252385-036-08550.800 ppb
2019-10-152385-013-1315ND
2019-10-152385-022-1040ND
2019-10-152385-047-08450.600 ppb
2019-10-162385-037-0915ND
2019-10-212385-014-1010ND
2019-10-222385-035-15101.70 ppb
2019-10-232385-007-1125ND
2019-10-232385-012-1005ND
2019-10-242385-048-1110ND
2019-11-132385-035-11253.40 ppb
2019-11-132385-048-09402.00 ppb
2019-12-112385-035-08451.50 ppb
2019-12-162385-048-0827ND
2019-12-305810-059-1137ND