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EWG's Tap Water Database — 2021 UPDATE

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Methomyl

California Water Service (CWS) - Los Altos Suburban

Methomyl is an extremely toxic carbamate insecticide that targets the nervous system. In 2015 the EPA restricted some uses of methomyl on some food crops to reduce risks to human health.

 

89

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND460ND
2015ND60ND
2016N/A00N/A
2017ND310ND
2018ND60ND
2019N/A00N/A

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-085810-008-1119ND
2014-01-085810-008-1121ND
2014-01-155810-002-1211ND
2014-01-155810-002-1217ND
2014-01-155810-016-1134ND
2014-01-155810-016-1130ND
2014-02-105810-010-1149ND
2014-02-195810-018-0958ND
2014-02-195810-018-0948ND
2014-02-205810-010-0915ND
2014-02-275810-023-1116ND
2014-02-275810-023-1101ND
2014-03-045810-015-1220ND
2014-03-045810-015-1232ND
2014-03-055810-011-1134ND
2014-03-055810-011-1129ND
2014-04-085810-020-1106ND
2014-04-085810-020-1103ND
2014-04-095810-021-1349ND
2014-04-095810-021-1336ND
2014-04-175810-022-1230ND
2014-05-145810-037-1410ND
2014-05-145810-037-1359ND
2014-05-145810-023-1233ND
2014-05-145810-023-1245ND
2014-06-045810-035-1102ND
2014-06-045810-032-1152ND
2014-06-045810-029-0840ND
2014-06-045810-028-0936ND
2014-06-045810-024-1046ND
2014-07-025810-016-1040ND
2014-07-025810-002-0937ND
2014-07-095810-008-1012ND
2014-08-115810-010-1046ND
2014-08-115810-018-1008ND
2014-09-095810-011-1314ND
2014-09-095810-015-1135ND
2014-10-015810-022-1406ND
2014-10-025810-021-1308ND
2014-10-025810-020-1217ND
2014-11-055810-037-1331ND
2014-12-105810-035-1139ND
2014-12-105810-024-1255ND
2014-12-105810-028-1230ND
2014-12-105810-032-1323ND
2014-12-105810-029-1137ND
2015-02-035810-013-1136ND
2015-03-039590-057-1003ND
2015-03-105810-030-1330ND
2015-06-239590-057-1100ND
2015-06-239590-030-1030ND
2015-06-239590-013-1140ND
2017-01-119590-011-0955ND
2017-01-119590-010-0930ND
2017-02-079590-023-1255ND
2017-02-089590-021-1300ND
2017-02-149590-020-1547ND
2017-03-159590-028-1208ND
2017-03-159590-024-0915ND
2017-04-049590-010-1400ND
2017-04-059590-016-1200ND
2017-04-069590-011-1110ND
2017-05-049590-023-1200ND
2017-05-049590-020-1245ND
2017-05-099590-021-1130ND
2017-06-139590-024-1142ND
2017-06-139590-028-1315ND
2017-07-069590-002-1115ND
2017-07-069590-016-1145ND
2017-07-199590-008-1030ND
2017-08-099590-022-1150ND
2017-08-099590-037-1220ND
2017-09-069590-029-1500ND
2017-09-069590-032-1230ND
2017-09-069590-035-1301ND
2017-10-119590-002-1030ND
2017-10-119590-008-1345ND
2017-11-139590-037-1300ND
2017-11-149590-022-1300ND
2017-12-069590-035-1200ND
2017-12-129590-032-1115ND
2017-12-129590-029-1045ND
2017-12-209590-018-1345ND
2018-02-069590-013-1015ND
2018-03-079590-030-1145ND
2018-04-259590-013-1030ND
2018-06-069590-030-0930ND
2018-09-189590-057-1234ND
2018-12-059590-057-1100ND