Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Arsenic

Sacramento Suburban 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

 

166

Samples

1

Samples exceeding legal limit (MCL)

64

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.02 ppb4911ND - 25.0 ppb
20150.480 ppb51ND - 2.40 ppb
20160.561 ppb388ND - 4.10 ppb
20171.76 ppb4028ND - 4.80 ppb
20181.83 ppb32ND - 3.00 ppb
20191.00 ppb3114ND - 2.70 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
2014-01-275810-246-1005ND
2014-04-295810-246-0930ND
2014-05-085810-244-1000ND
2014-06-195810-004-11052.10 ppb
2014-06-195810-061-095025.0 ppb
2014-06-195810-062-1000ND
2014-06-195810-064-11202.10 ppb
2014-06-275810-061-1515ND
2014-07-015810-034-0920ND
2014-07-085810-015-1000ND
2014-07-085810-042-10302.30 ppb
2014-07-095810-007-13252.50 ppb
2014-07-095810-052-1130ND
2014-07-105810-033-1150ND
2014-07-155810-018-1030ND
2014-07-165810-035-1100ND
2014-07-165810-066-0915ND
2014-07-165810-074-1155ND
2014-07-175810-019-1150ND
2014-07-175810-051-1100ND
2014-07-175810-054-1300ND
2014-07-175810-071-10202.20 ppb
2014-07-235810-013-12304.00 ppb
2014-07-245810-020-1330ND
2014-07-245810-065-1115ND
2014-07-295810-032-11302.90 ppb
2014-08-215810-010-11152.10 ppb
2014-08-215810-012-1200ND
2014-08-215810-028-1345ND
2014-08-215810-069-1030ND
2014-08-215810-244-0945ND
2014-08-275810-017-1045ND
2014-08-285810-030-1130ND
2014-08-285810-073-0940ND
2014-09-045810-016-0930ND
2014-09-165810-021-1200ND
2014-09-165810-072-1045ND
2014-09-175810-056-1040ND
2014-09-175810-070-09402.50 ppb
2014-09-245810-001-0945ND
2014-09-245810-002-1120ND
2014-10-015810-029-1030ND
2014-10-015810-067-09452.50 ppb
2014-10-085810-022-0930ND
2014-10-085810-027-1120ND
2014-10-085810-055-1020ND
2014-10-095810-025-1145ND
2014-10-155810-244-0930ND
2014-12-105810-011-1315ND
2015-01-155810-244-1140ND
2015-03-275810-061-1415ND
2015-06-035810-061-0933ND
2015-11-095810-061-1438ND
2015-12-035810-061-12302.40 ppb
2016-01-285810-081-1030ND
2016-02-085810-089-0950ND
2016-03-095810-097-0940ND
2016-03-175810-061-10152.80 ppb
2016-06-075810-061-1100ND
2016-06-235810-076-1345ND
2016-07-075810-080-0950ND
2016-07-075810-101-1200ND
2016-07-075810-104-1000ND
2016-07-075810-105-1130ND
2016-07-075810-244-1100ND
2016-07-115810-075-1000ND
2016-07-115810-077-0940ND
2016-07-115810-083-1150ND
2016-07-115810-102-1230ND
2016-07-115810-142-1225ND
2016-07-115810-144-1115ND
2016-07-115810-145-0915ND
2016-07-125810-087-1210ND
2016-07-125810-094-1010ND
2016-07-125810-098-1000ND
2016-07-135810-085-13502.40 ppb
2016-07-135810-096-1130ND
2016-07-135810-111-1130ND
2016-07-135810-240-1140ND
2016-07-135810-246-0910ND
2016-07-145810-107-11152.50 ppb
2016-07-195810-078-14154.10 ppb
2016-07-195810-139-13452.40 ppb
2016-07-205810-092-10502.40 ppb
2016-07-205810-133-11002.30 ppb
2016-07-215810-082-1240ND
2016-08-095810-248-1358ND
2016-09-075810-061-1040ND
2016-09-285810-146-1250ND
2016-11-075810-135-1025ND
2016-11-141233-250-1200ND
2016-12-135810-061-11252.40 ppb
2017-03-235810-061-1250ND
2017-06-085810-061-11452.20 ppb
2017-07-185810-002-1115ND
2017-09-059590-001-11002.20 ppb
2017-09-059590-062-0845ND
2017-09-079590-073-1345ND
2017-09-119590-022-11152.50 ppb
2017-09-119590-034-13302.00 ppb
2017-09-119590-051-1100ND
2017-09-119590-052-10002.40 ppb
2017-09-129590-010-09302.50 ppb
2017-09-129590-021-11152.60 ppb
2017-09-129590-042-12302.60 ppb
2017-09-129590-064-11452.30 ppb
2017-09-129590-066-10302.30 ppb
2017-09-129590-070-12002.20 ppb
2017-09-129590-072-1330ND
2017-09-129590-074-0910ND
2017-09-139590-054-13352.70 ppb
2017-09-139590-056-10452.30 ppb
2017-09-149590-011-09002.70 ppb
2017-09-149590-071-09454.80 ppb
2017-09-199590-015-13302.60 ppb
2017-09-199590-018-1300ND
2017-09-199590-020-0900ND
2017-09-199590-025-11202.70 ppb
2017-09-199590-032-11002.30 ppb
2017-09-219590-065-11452.70 ppb
2017-09-259590-019-1030ND
2017-09-269590-013-09002.90 ppb
2017-09-269590-030-11302.40 ppb
2017-09-269590-061-11002.30 ppb
2017-09-279590-007-12352.00 ppb
2017-09-279590-027-12002.50 ppb
2017-09-289590-035-0920ND
2017-09-289590-069-1315ND
2017-10-039590-029-09452.30 ppb
2017-12-079590-061-12552.50 ppb
2017-12-129590-012-11402.10 ppb
2017-12-139590-055-13202.90 ppb
2018-03-209590-061-11052.50 ppb
2018-03-279590-136-11513.00 ppb
2018-11-151233-240-1040ND
2019-05-301233-250-1530ND
2019-07-099590-078-10002.10 ppb
2019-07-099590-083-1410ND
2019-07-099590-089-1315ND
2019-07-099590-096-09302.40 ppb
2019-07-099590-098-13112.50 ppb
2019-07-099590-246-1030ND
2019-07-109590-075-0930ND
2019-07-109590-076-12002.00 ppb
2019-07-109590-077-09202.30 ppb
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
2019-07-119590-087-10302.10 ppb
2019-07-119590-097-13312.40 ppb
2019-07-119590-111-13002.30 ppb
2019-07-119590-248-0830ND
2019-07-159590-101-1000ND
2019-07-159590-102-1300ND
2019-07-179590-080-1120ND
2019-07-179590-085-13402.00 ppb
2019-07-229590-081-0820ND
2019-07-229590-133-10002.10 ppb
2019-07-239590-144-13202.10 ppb
2019-07-249590-146-11252.00 ppb
2019-08-289590-240-1151ND
2019-09-179590-082-1140ND
2019-09-179590-106-13102.10 ppb
2019-12-059590-130-14002.70 ppb