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EWG's Tap Water Database — 2021 UPDATE

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Chloromethane

Sacramento Suburban Water District

Chloromethane is an industrial solvent, aerosol propellant and a refrigerant. It also forms as a byproduct of water disinfection. The EPA classifies chloromethane as possibly carcinogenic to humans.

MORE ABOUT THIS CONTAMINANT

 

305

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND1020ND
2015ND120ND
2016ND40ND
2017ND580ND
2018ND610ND
2019ND680ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 2.69 ppb

The EWG Health Guideline of 2.69 ppb for chloromethane was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-03201402040279AMND
2014-02-03201402040304AMND
2014-02-03201402040297AMND
2014-02-03201402040295AMND
2014-02-03201402040281AMND
2014-02-03201402040306AMND
2014-02-03201402040318AMND
2014-02-03201402040291AMND
2014-02-03201402040293AMND
2014-02-05201402060280AMND
2014-02-05201402060399AMND
2014-02-05201402060308AMND
2014-02-05201402060405AMND
2014-02-05201402060420AMND
2014-02-05201402060266AMND
2014-02-05201402060274AMND
2014-02-05201402060278AMND
2014-02-05201402060272AMND
2014-02-06201402070345AMND
2014-02-06201402070361AMND
2014-02-06201402070249AMND
2014-02-06201402070239AMND
2014-02-06201402070215AMND
2014-02-06201402070300AMND
2014-02-06201402070359AMND
2014-02-06201402070341AMND
2014-02-06201402070305AMND
2014-02-10201402110089AMND
2014-02-10201402110101AMND
2014-02-10201402110095AMND
2014-02-10201402110087AMND
2014-02-10201402110091AMND
2014-02-10201402110105AMND
2014-02-10201402110103AMND
2014-02-13201402140361AMND
2014-02-13201402140329AMND
2014-02-13201402140357AMND
2014-02-13201402140274AMND
2014-02-13201402140375AMND
2014-02-13201402140377AMND
2014-02-13201402140359AMND
2014-02-13201402140276AMND
2014-02-13201402140326AMND
2014-02-13201402140272AMND
2014-02-13201402140363AMND
2014-02-13201402140353AMND
2014-02-20201402210319AMND
2014-02-20201402210275AMND
2014-02-20201402210347AMND
2014-05-15201405160286AMND
2014-05-15201405160276AMND
2014-08-06201408070210AMND
2014-08-06201408070333AMND
2014-08-06201408070292AMND
2014-08-06201408070315AMND
2014-08-07201408080159AMND
2014-08-07201408080165AMND
2014-08-07201408080171AMND
2014-08-07201408080169AMND
2014-08-11201408120095AMND
2014-08-11201408120164AMND
2014-08-11201408120131AMND
2014-08-11201408120343AMND
2014-08-11201408120123AMND
2014-08-11201408120093AMND
2014-08-11201408120099AMND
2014-08-11201408120097AMND
2014-08-11201408120256AMND
2014-08-13201408140165AMND
2014-08-13201408140171AMND
2014-08-13201408140178AMND
2014-08-13201408140158AMND
2014-08-13201408140155AMND
2014-08-13201408140167AMND
2014-08-13201408140162AMND
2014-08-13201408140153AMND
2014-08-13201408140176AMND
2014-08-14201408150234AMND
2014-08-14201408150161AMND
2014-08-14201408150154AMND
2014-08-14201408150210AMND
2014-08-14201408150152AMND
2014-08-14201408150148AMND
2014-08-14201408150238AMND
2014-08-14201408150150AMND
2014-08-14201408150163AMND
2014-08-20201408210294AMND
2014-08-20201408210251AMND
2014-08-20201408210283AMND
2014-08-20201408210245AMND
2014-08-20201408210257AMND
2014-08-20201408210287AMND
2014-08-21201408220538AMND
2014-08-21201408220551AMND
2014-08-21201408220553AMND
2014-08-21201408220525AMND
2014-08-21201408220527AMND
2014-08-21201408220531AMND
2014-08-21201408220534AMND
2014-08-21201408220536AMND
2014-11-12201411140283AMND
2014-11-12201411130845AMND
2015-01-075810-081-1050ND
2015-02-05201502060134AMND
2015-02-05201502060110AMND
2015-02-05201502060142AMND
2015-02-05201502060148AMND
2015-02-05201502060099AMND
2015-08-19201508200438AMND
2015-08-19201508200444AMND
2015-08-19201508200442AMND
2015-08-19201508200453AMND
2015-08-19201508200448AMND
2015-09-175810-135-1315ND
2016-07-135810-111-1130ND
2016-07-135810-240-1140ND
2016-07-135810-246-0910ND
2016-07-145810-107-1115ND
2017-09-059590-001-1100ND
2017-09-059590-062-0845ND
2017-09-059590-085-1030ND
2017-09-059590-244-1050ND
2017-09-069590-080-1050ND
2017-09-069590-098-1020ND
2017-09-069590-107-1145ND
2017-09-069590-240-1200ND
2017-09-079590-073-1345ND
2017-09-119590-022-1115ND
2017-09-119590-034-1330ND
2017-09-119590-051-1100ND
2017-09-119590-052-1000ND
2017-09-129590-010-0930ND
2017-09-129590-021-1115ND
2017-09-129590-042-1230ND
2017-09-129590-064-1145ND
2017-09-129590-066-1030ND
2017-09-129590-070-1200ND
2017-09-129590-072-1330ND
2017-09-129590-087-1300ND
2017-09-139590-054-1335ND
2017-09-139590-056-1045ND
2017-09-139590-078-0927ND
2017-09-139590-145-1019ND
2017-09-149590-011-0900ND
2017-09-149590-071-0945ND
2017-09-199590-015-1330ND
2017-09-199590-018-1300ND
2017-09-199590-020-0900ND
2017-09-199590-025-1120ND
2017-09-199590-032-1100ND
2017-09-219590-065-1145ND
2017-09-259590-019-1030ND
2017-09-269590-013-0900ND
2017-09-269590-030-1130ND
2017-09-269590-061-1100ND
2017-09-269590-102-0900ND
2017-09-269590-142-1251ND
2017-09-279590-007-1235ND
2017-09-279590-027-1200ND
2017-09-279590-111-1100ND
2017-09-289590-035-0920ND
2017-09-289590-069-1315ND
2017-10-039590-029-0945ND
2017-10-059590-020-1025ND
2017-10-069590-074-0937ND
2017-10-119590-081-1340ND
2017-10-119590-083-0921ND
2017-10-129590-065-1110ND
2017-10-129590-246-1158ND
2017-10-259590-104-1015ND
2017-10-259590-105-1200ND
2017-11-079590-089-1040ND
2017-11-209590-075-1015ND
2017-12-129590-012-1140ND
2017-12-139590-055-1320ND
2017-12-199590-065-0955ND
2018-01-029590-075-0855ND
2018-01-049590-104-0935ND
2018-01-109590-018-1118ND
2018-01-119590-246-0906ND
2018-01-189590-020-1215ND
2018-01-189590-065-1135ND
2018-01-239590-105-0845ND
2018-01-319590-083-1430ND
2018-03-099590-018-1050ND
2018-03-139590-135-1153ND
2018-03-279590-136-1151ND
2018-04-169590-020-1030ND
2018-04-199590-065-1135ND
2018-04-199590-081-0918ND
2018-04-269590-104-1205ND
2018-04-269590-105-1215ND
2018-04-269590-246-1030ND
2018-05-159590-075-0930ND
2018-05-229590-083-1200ND
2018-06-079590-018-1216ND
2018-07-099590-001-1405ND
2018-07-099590-052-1103ND
2018-07-112920-011-1141ND
2018-07-122920-098-0825ND
2018-07-122920-133-0945ND
2018-07-122920-139-1029ND
2018-07-169590-078-0925ND
2018-07-169590-246-1314ND
2018-07-179590-020-1100ND
2018-07-179590-027-1100ND
2018-07-179590-065-1230ND
2018-07-179590-083-1415ND
2018-07-179590-087-1020ND
2018-07-179590-089-0935ND
2018-07-179590-111-1225ND
2018-07-179590-240-1410ND
2018-07-189590-085-1057ND
2018-07-189590-107-1225ND
2018-07-249590-013-1000ND
2018-07-249590-015-0915ND
2018-07-249590-061-1225ND
2018-07-249590-066-1205ND
2018-07-249590-248-1310ND
2018-07-259590-007-1345ND
2018-07-269590-081-1106ND
2018-07-269590-104-1045ND
2018-07-269590-105-1120ND
2018-07-269590-244-0825ND
2018-07-319590-075-0815ND
2018-07-319590-080-1055ND
2018-07-319590-102-1345ND
2018-09-139590-018-1142ND
2018-10-049590-083-1425ND
2018-10-049590-246-1005ND
2018-10-119590-020-1010ND
2018-10-179590-104-1210ND
2018-10-179590-105-1100ND
2018-10-259590-075-1000ND
2018-10-299590-065-1048ND
2018-10-309590-081-1015ND
2018-12-039590-018-1230ND
2019-01-079590-246-0914ND
2019-01-109590-081-0830ND
2019-01-249590-020-1247ND
2019-01-249590-075-0820ND
2019-01-299590-065-1040ND
2019-01-309590-104-0850ND
2019-01-309590-105-0900ND
2019-03-129590-018-1230ND
2019-04-049590-020-1115ND
2019-04-109590-083-1435ND
2019-04-169590-081-1200ND
2019-04-179590-075-0815ND
2019-04-179590-104-1000ND
2019-04-179590-105-1015ND
2019-04-179590-246-1213ND
2019-04-189590-065-1001ND
2019-06-189590-018-0932ND
2019-07-099590-078-1000ND
2019-07-099590-083-1410ND
2019-07-099590-089-1315ND
2019-07-099590-096-0930ND
2019-07-099590-098-1311ND
2019-07-099590-246-1030ND
2019-07-109590-020-0817ND
2019-07-109590-052-1019ND
2019-07-109590-075-0930ND
2019-07-109590-076-1200ND
2019-07-109590-077-0920ND
2019-07-109590-094-1350ND
2019-07-109590-104-1121ND
2019-07-109590-105-1221ND
2019-07-109590-145-1030ND
2019-07-109590-244-1000ND
2019-07-119590-013-1232ND
2019-07-119590-015-1357ND
2019-07-119590-018-1325ND
2019-07-119590-087-1030ND
2019-07-119590-097-1331ND
2019-07-119590-111-1300ND
2019-07-119590-248-0830ND
2019-07-159590-001-0950ND
2019-07-159590-101-1000ND
2019-07-159590-102-1300ND
2019-07-179590-080-1120ND
2019-07-179590-085-1340ND
2019-07-189590-061-1220ND
2019-07-189590-065-0828ND
2019-07-189590-066-1040ND
2019-07-229590-081-0820ND
2019-07-229590-133-1000ND
2019-07-239590-144-1320ND
2019-07-249590-146-1125ND
2019-07-309590-011-1401ND
2019-08-289590-240-1151ND
2019-09-169590-007-1405ND
2019-09-179590-082-1140ND
2019-09-179590-106-1310ND
2019-09-259590-250-1045ND
2019-10-079590-020-1325ND
2019-10-099590-065-0940ND
2019-10-099590-081-1350ND
2019-10-159590-104-0830ND
2019-10-159590-105-0833ND
2019-10-289590-246-0931ND
2019-11-049590-018-1445ND
2019-11-059590-075-0940ND
2019-12-059590-130-1400ND
2019-12-199590-250-1100ND