Know Your Environment. Protect Your Health.

Arsenic

Rio Cosumnes Correctional Center [sws]

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.

 

187

Samples

103

Samples exceeding legal limit (MCL)

177

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201821.5 ppb25253.10 ppb - 49.0 ppb
201921.0 ppb25254.00 ppb - 50.0 ppb
202021.6 ppb4240ND - 48.0 ppb
202124.6 ppb2928ND - 50.0 ppb
202226.6 ppb3327ND - 50.0 ppb
202326.6 ppb3332ND - 50.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-01-16CA3400229_008_008-2018011609284.90 ppb
2018-01-16CA3400229_011_011-20180116092937.0 ppb
2018-02-13CA3400229_008_008-2018021308587.00 ppb
2018-02-13CA3400229_011_011-20180213090035.0 ppb
2018-03-26CA3400229_008_008-2018032608584.30 ppb
2018-03-26CA3400229_011_011-20180326085739.0 ppb
2018-04-16CA3400229_008_008-2018041612044.10 ppb
2018-04-16CA3400229_011_011-20180416120635.0 ppb
2018-05-14CA3400229_008_008-2018051409404.20 ppb
2018-05-14CA3400229_011_011-20180514093535.0 ppb
2018-06-19CA3400229_011_011-20180619132433.0 ppb
2018-06-19CA3400229_008_008-2018061913263.10 ppb
2018-07-18CA3400229_011_011-20180718121133.0 ppb
2018-07-18CA3400229_008_008-2018071812043.90 ppb
2018-08-21CA3400229_003_003-20180821105844.0 ppb
2018-08-27CA3400229_011_011-20180827085249.0 ppb
2018-08-27CA3400229_008_008-2018082708545.00 ppb
2018-09-17CA3400229_008_008-2018091708105.80 ppb
2018-09-17CA3400229_011_011-20180917080947.0 ppb
2018-10-17CA3400229_008_008-2018101710474.70 ppb
2018-10-17CA3400229_011_011-20181017104830.0 ppb
2018-11-21CA3400229_008_008-2018112107574.60 ppb
2018-11-21CA3400229_011_011-20181121075631.0 ppb
2018-12-19CA3400229_011_011-20181219074533.0 ppb
2018-12-19CA3400229_008_008-2018121907465.30 ppb
2019-01-29CA3400229_008_008-2019012909055.50 ppb
2019-01-29CA3400229_011_011-20190129090113.0 ppb
2019-02-14CA3400229_001_001-20190214080950.0 ppb
2019-02-19CA3400229_011_011-20190219103634.0 ppb
2019-02-19CA3400229_008_008-2019021910346.20 ppb
2019-03-19CA3400229_008_008-2019031913405.90 ppb
2019-03-19CA3400229_011_011-20190319133632.0 ppb
2019-04-18CA3400229_008_008-2019041810037.20 ppb
2019-04-18CA3400229_011_011-20190418100134.0 ppb
2019-05-21CA3400229_011_011-20190521090833.0 ppb
2019-05-21CA3400229_008_008-2019052109055.40 ppb
2019-06-17CA3400229_008_008-2019061713145.60 ppb
2019-06-17CA3400229_011_011-20190617131532.0 ppb
2019-07-09CA3400229_011_011-20190709131233.0 ppb
2019-07-09CA3400229_008_008-2019070913175.30 ppb
2019-08-22CA3400229_008_008-2019082212115.10 ppb
2019-08-22CA3400229_011_011-20190822122232.0 ppb
2019-09-09CA3400229_011_011-20190909093833.0 ppb
2019-09-09CA3400229_008_008-2019090909365.80 ppb
2019-10-01CA3400229_011_011-20191001121335.0 ppb
2019-10-01CA3400229_008_008-2019100112154.60 ppb
2019-12-11CA3400229_008_008-2019121112157.20 ppb
2019-12-11CA3400229_008_008-2019121112134.00 ppb
2019-12-11CA3400229_001_001-20191211121250.0 ppb
2019-12-11CA3400229_001_001-20191211121746.0 ppb
2020-01-07CA3400229_001_001-20200107093034.0 ppb
2020-01-07CA3400229_008_008-2020010709384.90 ppb
2020-01-07CA3400229_008_008-2020010709456.20 ppb
2020-02-20CA3400229_008_008-2020022009393.30 ppb
2020-02-20CA3400229_011_011-20200220093933.0 ppb
2020-02-20CA3400229_008_008-2020022009498.30 ppb
2020-02-20CA3400229_011_011-20200220094748.0 ppb
2020-03-25CA3400229_008_008-2020032507202.50 ppb
2020-03-25CA3400229_011_011-20200325071637.0 ppb
2020-04-13CA3400229_008_008-2020041309103.20 ppb
2020-04-13CA3400229_011_011-20200413091041.0 ppb
2020-05-18CA3400229_011_011-20200518143040.0 ppb
2020-05-18CA3400229_008_008-2020051814352.50 ppb
2020-05-18CA3400229_011_011-20200518143542.0 ppb
2020-05-18CA3400229_008_008-2020051814302.90 ppb
2020-06-11CA3400229_011_011-20200611101836.0 ppb
2020-06-11CA3400229_008_008-2020061110183.10 ppb
2020-06-11CA3400229_011_011-20200611102038.0 ppb
2020-06-11CA3400229_008_008-202006111020ND
2020-07-15CA3400229_011_011-20200715085642.0 ppb
2020-07-15CA3400229_008_008-2020071508523.40 ppb
2020-08-25CA3400229_011_011-20200825131841.0 ppb
2020-08-25CA3400229_011_011-20200825132044.0 ppb
2020-08-25CA3400229_008_008-2020082513184.30 ppb
2020-08-25CA3400229_008_008-2020082513203.70 ppb
2020-09-17CA3400229_008_008-2020091711504.70 ppb
2020-09-17CA3400229_008_008-2020091711554.10 ppb
2020-09-17CA3400229_011_011-20200917114843.0 ppb
2020-09-17CA3400229_011_011-20200917115340.0 ppb
2020-10-20CA3400229_008_008-2020102010362.80 ppb
2020-10-20CA3400229_011_011-20201020103538.0 ppb
2020-10-20CA3400229_011_011-20201020105340.0 ppb
2020-10-20CA3400229_008_008-202010201055ND
2020-11-03CA3400229_008_008-2020110309252.30 ppb
2020-11-03CA3400229_008_008-2020110310183.60 ppb
2020-11-03CA3400229_011_011-20201103092542.0 ppb
2020-11-03CA3400229_011_011-20201103101841.0 ppb
2020-11-09CA3400229_002_002-20201109150327.0 ppb
2020-12-09CA3400229_011_011-20201209093047.0 ppb
2020-12-09CA3400229_008_008-2020120909302.70 ppb
2020-12-09CA3400229_008_008-2020120909333.70 ppb
2020-12-09CA3400229_011_011-20201209093342.0 ppb
2021-01-07CA3400229_011_011-20210107111044.0 ppb
2021-01-07CA3400229_008_008-2021010711084.00 ppb
2021-01-07CA3400229_008_008-2021010711114.80 ppb
2021-01-07CA3400229_011_011-20210107110746.0 ppb
2021-02-03CA3400229_008_008-2021020311143.00 ppb
2021-02-03CA3400229_008_008-2021020311103.50 ppb
2021-02-03CA3400229_011_011-20210203111242.0 ppb
2021-02-03CA3400229_011_011-20210203110950.0 ppb
2021-03-15CA3400229_011_011-20210315103244.0 ppb
2021-03-15CA3400229_008_008-2021031511205.20 ppb
2021-04-21CA3400229_008_008-2021042113022.80 ppb
2021-04-21CA3400229_011_011-20210421130142.0 ppb
2021-04-21CA3400229_008_008-2021042112584.40 ppb
2021-04-21CA3400229_011_011-20210421120246.0 ppb
2021-05-17CA3400229_011_011-20210517151038.0 ppb
2021-05-17CA3400229_011_011-20210517151641.0 ppb
2021-05-17CA3400229_008_008-2021051715093.00 ppb
2021-05-17CA3400229_008_008-2021051715157.10 ppb
2021-06-14CA3400229_008_008-2021061410193.20 ppb
2021-06-14CA3400229_011_011-20210614101747.0 ppb
2021-06-14CA3400229_008_008-2021061410119.70 ppb
2021-06-14CA3400229_011_011-20210614101043.0 ppb
2021-08-02CA3400229_003_003-20210802122742.0 ppb
2021-08-12CA3400229_011_011-20210812095239.0 ppb
2021-08-12CA3400229_008_008-2021081209524.80 ppb
2021-10-19CA3400229_008_008-202110191325ND
2021-11-15CA3400229_011_011-20211115114342.0 ppb
2021-11-15CA3400229_005_005-20211115113848.0 ppb
2021-12-16CA3400229_008_008-2021121609445.10 ppb
2022-01-25CA3400229_005_005-20220125123542.0 ppb
2022-01-25CA3400229_008_008-202201251235ND
2022-01-25CA3400229_011_011-20220125125150.0 ppb
2022-02-15CA3400229_005_005-20220215112242.0 ppb
2022-02-15CA3400229_008_008-202202151122ND
2022-03-21CA3400229_005_005-20220321111842.0 ppb
2022-03-21CA3400229_008_008-202203211118ND
2022-04-20CA3400229_005_005-20220420110045.0 ppb
2022-04-20CA3400229_008_008-2022042011003.60 ppb
2022-05-18CA3400229_005_005-20220518083541.0 ppb
2022-05-18CA3400229_011_011-20220518083544.0 ppb
2022-05-18CA3400229_008_008-202205180835ND
2022-06-27CA3400229_005_005-20220627112442.0 ppb
2022-06-27CA3400229_008_008-2022062711252.00 ppb
2022-06-27CA3400229_011_011-20220627112140.0 ppb
2022-07-11CA3400229_005_005-20220711094547.0 ppb
2022-07-11CA3400229_008_008-2022071109452.40 ppb
2022-07-11CA3400229_011_011-20220711094541.0 ppb
2022-08-09CA3400229_005_005-20220809111345.0 ppb
2022-08-09CA3400229_008_008-2022080911132.90 ppb
2022-08-09CA3400229_011_011-20220809111045.0 ppb
2022-09-13CA3400229_008_008-2022091309372.30 ppb
2022-09-13CA3400229_011_011-20220913093541.0 ppb
2022-09-13CA3400229_005_005-20220913093743.0 ppb
2022-10-11CA3400229_008_008-202210111105ND
2022-10-11CA3400229_011_011-20221011110043.0 ppb
2022-10-11CA3400229_005_005-20221011110538.0 ppb
2022-11-07CA3400229_008_008-2022110712103.90 ppb
2022-11-17CA3400229_008_008-202211171352ND
2022-11-17CA3400229_005_005-20221117135043.0 ppb
2022-11-17CA3400229_011_011-20221117135548.0 ppb
2022-12-15CA3400229_005_005-20221215102437.0 ppb
2022-12-15CA3400229_008_008-2022121510253.30 ppb
2023-01-11CA3400229_008_008-202301111015ND
2023-01-11CA3400229_005_005-20230111101534.0 ppb
2023-01-11CA3400229_011_011-20230111101049.0 ppb
2023-02-14CA3400229_008_008-2023021411003.40 ppb
2023-02-14CA3400229_005_005-20230214110038.0 ppb
2023-03-28CA3400229_005_005-20230328093540.0 ppb
2023-03-28CA3400229_008_008-2023032809353.00 ppb
2023-04-11CA3400229_005_005-20230411100637.0 ppb
2023-04-11CA3400229_008_008-2023041110064.80 ppb
2023-04-11CA3400229_011_011-20230411100550.0 ppb
2023-05-11CA3400229_005_005-20230511130538.0 ppb
2023-05-11CA3400229_008_008-2023051113005.00 ppb
2023-06-06CA3400229_008_008-2023060607503.20 ppb
2023-06-06CA3400229_011_011-20230606091547.0 ppb
2023-06-06CA3400229_005_005-20230606075036.0 ppb
2023-07-12CA3400229_005_005-20230712132335.0 ppb
2023-07-12CA3400229_008_008-2023071213254.10 ppb
2023-07-12CA3400229_011_011-20230712132133.0 ppb
2023-08-07CA3400229_008_008-2023080709253.10 ppb
2023-08-07CA3400229_011_011-20230807091040.0 ppb
2023-09-11CA3400229_005_005-20230911113335.0 ppb
2023-09-11CA3400229_008_008-2023091111383.50 ppb
2023-09-11CA3400229_011_011-20230911113042.0 ppb
2023-10-18CA3400229_011_011-20231018120845.0 ppb
2023-10-18CA3400229_005_005-20231018121133.0 ppb
2023-10-18CA3400229_008_008-2023101812113.50 ppb
2023-11-07CA3400229_002_002-20231107084039.0 ppb
2023-11-16CA3400229_005_005-20231116092039.0 ppb
2023-11-16CA3400229_008_008-2023111609254.00 ppb
2023-11-16CA3400229_011_011-20231116094044.0 ppb
2023-12-18CA3400229_005_005-20231218115034.0 ppb
2023-12-18CA3400229_008_008-2023121811592.90 ppb
2023-12-18CA3400229_011_011-20231218114248.0 ppb