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EWG's Tap Water Database — 2021 UPDATE

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Silver

California Water Service (CWS) - Bakersfield

Silver occurs naturally in surface and groundwater and can be added to water as a biocide that inhibits growth of bacteria and algae. Increasingly, the use of antimicrobial nano-sized silver particles in consumer products contributes to silver in water sources used for drinking water.

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123

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND220ND
2016ND240ND
2017ND170ND
2018ND230ND
2019ND210ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-065810-026-1415ND
2014-01-145810-002-1008ND
2014-02-045810-009-0931ND
2014-03-045810-253-0810ND
2014-06-055810-005-1016ND
2014-06-255810-018-1018ND
2014-06-255810-020-0934ND
2014-06-305810-021-1025ND
2014-07-075806-011-1500ND
2014-07-105806-031-1345ND
2014-08-065806-024-1420ND
2014-08-135806-015-1120ND
2014-10-085806-050-1013ND
2014-10-095806-004-1326ND
2014-10-205806-006-1125ND
2014-12-165810-003-2240ND
2015-03-045806-051-1130ND
2015-03-045806-072-1215ND
2015-03-195806-253-0735ND
2015-04-205806-053-1307ND
2015-04-215806-038-1450ND
2015-05-115806-096-1025ND
2015-05-115806-105-1331ND
2015-05-115806-156-0938ND
2015-07-085806-059-1410ND
2015-07-085806-068-1132ND
2015-08-055806-099-1400ND
2015-08-105806-098-1035ND
2015-08-135806-160-0934ND
2015-09-105806-092-1437ND
2015-10-055806-079-1335ND
2015-10-055806-091-1205ND
2015-10-065806-058-1050ND
2015-10-275806-056-1205ND
2015-12-095806-106-1300ND
2015-12-095806-163-1203ND
2015-12-105806-094-1315ND
2015-12-155806-108-1015ND
2016-01-045806-106-0905ND
2016-01-045806-107-0905ND
2016-02-105806-122-1321ND
2016-03-165806-253-1025ND
2016-05-045806-124-1235ND
2016-05-055806-118-1350ND
2016-05-205806-110-1350ND
2016-05-205806-126-1250ND
2016-06-085806-148-1230ND
2016-06-155806-131-1045ND
2016-06-165806-055-1025ND
2016-06-175806-151-1015ND
2016-07-145806-109-1200ND
2016-08-085806-149-1240ND
2016-08-085806-154-0945ND
2016-08-155806-125-1013ND
2016-08-185806-069-1051ND
2016-08-185806-150-1153ND
2016-09-075806-119-1120ND
2016-09-085806-052-1120ND
2016-09-125806-143-1015ND
2016-09-125806-146-1055ND
2016-09-225806-117-0930ND
2016-10-115806-129-1519ND
2017-01-105806-002-1025ND
2017-01-195806-026-0949ND
2017-03-145806-253-0850ND
2017-03-235806-021-0904ND
2017-04-105806-009-1125ND
2017-04-195806-004-1145ND
2017-06-125806-050-1135ND
2017-06-195806-018-0936ND
2017-06-205806-005-1035ND
2017-06-205806-015-1019ND
2017-06-265806-006-0947ND
2017-07-125806-003-0741ND
2017-07-185806-031-1100ND
2017-08-235806-024-1337ND
2017-10-025701-250-0925ND
2017-11-065806-011-1027ND
2017-12-285806-020-1010ND
2018-03-145806-051-1140ND
2018-03-145806-072-1250ND
2018-03-225806-253-0800ND
2018-04-165806-156-1057ND
2018-04-175806-053-1400ND
2018-04-175806-105-0930ND
2018-04-235806-094-1107ND
2018-04-255806-096-0930ND
2018-04-265806-038-1145ND
2018-06-159590-026-0945ND
2018-07-115806-068-1118ND
2018-07-115806-092-1400ND
2018-07-115806-106-1431ND
2018-07-125806-056-1444ND
2018-07-245806-059-1414ND
2018-07-245806-091-0850ND
2018-08-135806-099-0950ND
2018-08-215806-098-0942ND
2018-08-275806-160-1221ND
2018-09-135806-058-0955ND
2018-09-205806-069-1025ND
2018-10-255806-058-1144ND
2018-11-165806-048-1128ND
2019-01-095806-107-1109ND
2019-02-135806-122-1021ND
2019-03-265806-253-1055ND
2019-05-145806-125-0840ND
2019-05-145806-126-0920ND
2019-05-155806-118-1330ND
2019-05-295806-110-1130ND
2019-05-295806-124-0930ND
2019-06-105806-148-1100ND
2019-06-105806-151-1059ND
2019-07-185806-109-0955ND
2019-08-125806-117-1130ND
2019-08-125806-149-1054ND
2019-08-125806-154-1259ND
2019-09-105806-146-0836ND
2019-09-115806-143-0920ND
2019-09-245806-055-1330ND
2019-10-165806-052-1150ND
2019-10-285806-150-1135ND
2019-11-205806-108-0835ND
2019-12-105806-119-0845ND