Know Your Environment. Protect Your Health.

Arsenic

High Desert Detention Center

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.

 

311

Samples

33

Samples exceeding legal limit (MCL)

259

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20187.35 ppb6452ND - 37.0 ppb
20197.14 ppb5041ND - 39.0 ppb
20205.64 ppb2922ND - 35.0 ppb
20217.87 ppb5950ND - 39.0 ppb
20229.19 ppb6256ND - 42.0 ppb
20235.68 ppb4738ND - 34.0 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
2018-01-03CA3601182_003_003-201801031115ND
2018-01-03CA3601182_004_004-2018010311455.90 ppb
2018-01-03CA3601182_001_001-20180103110034.0 ppb
2018-01-08CA3601182_004_004-2018010811156.30 ppb
2018-01-16CA3601182_004_004-2018011611155.60 ppb
2018-01-22CA3601182_004_004-2018012211454.90 ppb
2018-02-05CA3601182_003_003-201802051315ND
2018-02-05CA3601182_004_004-2018020513305.50 ppb
2018-02-13CA3601182_004_004-2018021311155.20 ppb
2018-02-20CA3601182_004_004-2018022012155.40 ppb
2018-02-27CA3601182_004_004-2018022711155.70 ppb
2018-03-05CA3601182_003_003-201803051115ND
2018-03-05CA3601182_004_004-2018030511306.20 ppb
2018-03-13CA3601182_004_004-2018031311156.30 ppb
2018-03-19CA3601182_004_004-2018031911155.90 ppb
2018-03-27CA3601182_004_004-2018032710455.20 ppb
2018-04-03CA3601182_004_004-2018040312004.60 ppb
2018-04-03CA3601182_001_001-20180403113032.0 ppb
2018-04-03CA3601182_003_003-201804031145ND
2018-04-10CA3601182_004_004-2018041011156.20 ppb
2018-04-16CA3601182_004_004-2018041610455.60 ppb
2018-04-23CA3601182_004_004-2018042311155.50 ppb
2018-04-24CA3601182_001_001-20180424110033.0 ppb
2018-05-03CA3601182_004_004-2018050311304.10 ppb
2018-05-03CA3601182_003_003-201805031115ND
2018-05-07CA3601182_004_004-2018050711155.40 ppb
2018-05-14CA3601182_004_004-2018051411455.60 ppb
2018-05-24CA3601182_004_004-2018052411155.00 ppb
2018-06-02CA3601182_004_004-2018060208305.30 ppb
2018-06-06CA3601182_003_003-201806061045ND
2018-06-11CA3601182_004_004-2018061111156.10 ppb
2018-06-20CA3601182_004_004-2018062014156.30 ppb
2018-06-25CA3601182_004_004-2018062511156.10 ppb
2018-07-02CA3601182_003_003-201807021115ND
2018-07-02CA3601182_004_004-2018070211306.40 ppb
2018-07-02CA3601182_001_001-20180702110032.0 ppb
2018-07-09CA3601182_001_001-20180709110035.0 ppb
2018-07-17CA3601182_004_004-2018071710455.70 ppb
2018-07-24CA3601182_003_003-201807241400ND
2018-07-24CA3601182_004_004-2018072414155.60 ppb
2018-08-06CA3601182_004_004-2018080611306.10 ppb
2018-08-06CA3601182_003_003-201808061115ND
2018-08-15CA3601182_004_004-2018081514456.40 ppb
2018-08-20CA3601182_004_004-2018082011156.50 ppb
2018-08-27CA3601182_004_004-2018082711456.00 ppb
2018-09-11CA3601182_004_004-2018091110456.40 ppb
2018-09-17CA3601182_004_004-2018091711456.10 ppb
2018-09-24CA3601182_004_004-2018092412456.40 ppb
2018-10-01CA3601182_003_003-201810011100ND
2018-10-01CA3601182_004_004-2018100111156.10 ppb
2018-10-01CA3601182_001_001-20181001104537.0 ppb
2018-10-09CA3601182_004_004-2018100911155.70 ppb
2018-10-16CA3601182_004_004-2018101611156.20 ppb
2018-10-22CA3601182_004_004-2018102212156.00 ppb
2018-11-06CA3601182_004_004-2018110609155.80 ppb
2018-11-06CA3601182_003_003-201811061000ND
2018-11-14CA3601182_004_004-2018111411455.70 ppb
2018-11-19CA3601182_004_004-2018111910455.70 ppb
2018-11-26CA3601182_004_004-2018112612006.20 ppb
2018-12-03CA3601182_003_003-201812031200ND
2018-12-03CA3601182_004_004-2018120311105.90 ppb
2018-12-10CA3601182_004_004-2018121011006.30 ppb
2018-12-18CA3601182_004_004-2018121812106.60 ppb
2018-12-26CA3601182_004_004-2018122611456.00 ppb
2019-01-02CA3601182_003_003-201901021215ND
2019-01-02CA3601182_001_001-20190102120039.0 ppb
2019-01-02CA3601182_004_004-2019010212306.10 ppb
2019-01-08CA3601182_004_004-2019010811455.50 ppb
2019-01-14CA3601182_004_004-2019011410055.90 ppb
2019-01-30CA3601182_004_004-2019013011005.80 ppb
2019-02-06CA3601182_003_003-201902061215ND
2019-02-06CA3601182_004_004-2019020612105.40 ppb
2019-02-11CA3601182_004_004-2019021111455.60 ppb
2019-02-20CA3601182_004_004-2019022011456.10 ppb
2019-02-25CA3601182_004_004-2019022511155.90 ppb
2019-03-05CA3601182_004_004-2019030510505.60 ppb
2019-03-05CA3601182_003_003-201903051217ND
2019-03-12CA3601182_004_004-2019031211126.00 ppb
2019-03-19CA3601182_004_004-2019031913085.70 ppb
2019-03-26CA3601182_004_004-2019032611366.00 ppb
2019-04-02CA3601182_003_003-201904021209ND
2019-04-02CA3601182_004_004-2019040211585.60 ppb
2019-04-02CA3601182_001_001-20190402113535.0 ppb
2019-04-08CA3601182_004_004-2019040811036.00 ppb
2019-04-16CA3601182_004_004-2019041611505.70 ppb
2019-04-22CA3601182_004_004-2019042211355.80 ppb
2019-04-26CA3601182_004_004-2019042615106.50 ppb
2019-04-29CA3601182_004_004-2019042913176.00 ppb
2019-05-13CA3601182_003_003-201905131236ND
2019-05-13CA3601182_004_004-2019051312266.70 ppb
2019-05-21CA3601182_004_004-2019052112255.60 ppb
2019-05-29CA3601182_004_004-2019052911055.70 ppb
2019-06-10CA3601182_004_004-2019061012165.60 ppb
2019-06-17CA3601182_004_004-2019061712295.40 ppb
2019-06-24CA3601182_004_004-2019062411365.30 ppb
2019-07-01CA3601182_001_001-20190701113036.0 ppb
2019-07-01CA3601182_003_003-201907011208ND
2019-07-01CA3601182_004_004-2019070111555.40 ppb
2019-07-08CA3601182_004_004-2019070812155.30 ppb
2019-07-15CA3601182_004_004-2019071511274.90 ppb
2019-07-30CA3601182_004_004-2019073011145.40 ppb
2019-08-06CA3601182_004_004-2019080612204.80 ppb
2019-08-06CA3601182_003_003-201908061150ND
2019-08-12CA3601182_004_004-2019081211305.20 ppb
2019-08-20CA3601182_004_004-2019082011425.50 ppb
2019-08-27CA3601182_004_004-2019082709085.30 ppb
2019-09-05CA3601182_003_003-201909051005ND
2019-09-05CA3601182_004_004-2019090510105.70 ppb
2019-09-17CA3601182_004_004-2019091711385.70 ppb
2019-09-24CA3601182_004_004-2019092411355.90 ppb
2019-10-01CA3601182_001_001-20191001103037.0 ppb
2019-10-01CA3601182_003_003-201910011050ND
2019-10-01CA3601182_004_004-2019100110405.70 ppb
2019-10-08CA3601182_004_004-2019100811265.90 ppb
2020-02-10CA3601182_004_004-2020021010227.50 ppb
2020-02-18CA3601182_004_004-2020021813004.10 ppb
2020-02-24CA3601182_004_004-2020022411175.70 ppb
2020-03-09CA3601182_004_004-2020030910586.10 ppb
2020-03-16CA3601182_004_004-2020031612556.20 ppb
2020-04-01CA3601182_003_003-202004011007ND
2020-04-01CA3601182_004_004-2020040109596.40 ppb
2020-04-06CA3601182_004_004-2020040609205.70 ppb
2020-04-13CA3601182_004_004-202004131044ND
2020-04-20CA3601182_004_004-202004201101ND
2020-04-29CA3601182_004_004-202004290943ND
2020-05-04CA3601182_004_004-202005041118ND
2020-05-04CA3601182_003_003-202005041117ND
2020-05-11CA3601182_004_004-202005111200ND
2020-07-27CA3601182_004_004-2020072715184.60 ppb
2020-08-03CA3601182_004_004-2020080311355.20 ppb
2020-08-10CA3601182_004_004-2020081009307.40 ppb
2020-09-21CA3601182_004_004-2020092114255.40 ppb
2020-10-05CA3601182_004_004-2020100514455.60 ppb
2020-10-13CA3601182_004_004-2020101313106.50 ppb
2020-10-20CA3601182_004_004-2020102011116.40 ppb
2020-10-26CA3601182_004_004-2020102614438.00 ppb
2020-11-02CA3601182_004_004-20201102145211.0 ppb
2020-11-09CA3601182_004_004-2020110914595.60 ppb
2020-11-17CA3601182_001_001-20201117114335.0 ppb
2020-11-17CA3601182_004_004-2020111712085.60 ppb
2020-11-23CA3601182_004_004-2020112312205.90 ppb
2020-12-01CA3601182_004_004-2020120112594.90 ppb
2020-12-08CA3601182_004_004-2020120811354.80 ppb
2021-01-04CA3601182_004_004-202101041450ND
2021-01-04CA3601182_004_004-2021010414455.70 ppb
2021-02-02CA3601182_004_004-2021020212335.50 ppb
2021-02-02CA3601182_004_004-202102021241ND
2021-02-16CA3601182_001_001-20210216121135.0 ppb
2021-02-16CA3601182_004_004-2021021612204.70 ppb
2021-02-23CA3601182_004_004-2021022311195.50 ppb
2021-03-02CA3601182_004_004-202103021422ND
2021-03-02CA3601182_004_004-2021030214176.00 ppb
2021-03-09CA3601182_004_004-2021030911566.70 ppb
2021-03-16CA3601182_004_004-2021031612506.30 ppb
2021-03-23CA3601182_004_004-2021032309506.30 ppb
2021-04-06CA3601182_004_004-202104061221ND
2021-04-06CA3601182_003_003-202104061221ND
2021-04-13CA3601182_004_004-2021041311525.90 ppb
2021-04-20CA3601182_004_004-2021042011336.60 ppb
2021-04-27CA3601182_004_004-2021042712016.50 ppb
2021-05-04CA3601182_003_003-202105041209ND
2021-05-04CA3601182_004_004-2021050412046.30 ppb
2021-05-11CA3601182_004_004-2021051111006.20 ppb
2021-05-18CA3601182_004_004-2021051811566.70 ppb
2021-05-25CA3601182_004_004-2021052512228.60 ppb
2021-06-01CA3601182_004_004-2021060110454.20 ppb
2021-06-01CA3601182_003_003-202106011215ND
2021-06-08CA3601182_004_004-2021060812294.70 ppb
2021-06-08CA3601182_DST_800-20210608121535.0 ppb
2021-06-15CA3601182_004_004-2021061511584.30 ppb
2021-06-22CA3601182_004_004-2021062212004.50 ppb
2021-06-29CA3601182_004_004-2021062910346.50 ppb
2021-07-06CA3601182_003_003-2021070612072.80 ppb
2021-07-06CA3601182_004_004-2021070611576.70 ppb
2021-07-13CA3601182_001_001-20210713120536.0 ppb
2021-07-13CA3601182_004_004-2021071312247.20 ppb
2021-07-20CA3601182_004_004-2021072012455.60 ppb
2021-07-27CA3601182_004_004-2021072711006.00 ppb
2021-08-10CA3601182_004_004-2021081011354.70 ppb
2021-08-17CA3601182_004_004-2021081712084.40 ppb
2021-08-25CA3601182_004_004-2021082513315.20 ppb
2021-09-14CA3601182_004_004-2021091413075.50 ppb
2021-09-21CA3601182_004_004-2021092111446.70 ppb
2021-09-21CA3601182_001_001-20210921113235.0 ppb
2021-09-28CA3601182_004_004-2021092814266.30 ppb
2021-10-05CA3601182_003_003-2021100511292.40 ppb
2021-10-05CA3601182_004_004-2021100511255.70 ppb
2021-10-12CA3601182_001_001-20211012112739.0 ppb
2021-10-12CA3601182_004_004-2021101211317.00 ppb
2021-10-19CA3601182_004_004-2021101910136.40 ppb
2021-10-26CA3601182_004_004-2021102613204.10 ppb
2021-11-02CA3601182_004_004-2021110212304.50 ppb
2021-11-02CA3601182_003_003-202111021238ND
2021-11-09CA3601182_002_002-2021110911414.80 ppb
2021-11-16CA3601182_002_002-2021111612284.80 ppb
2021-11-22CA3601182_002_002-2021112211504.40 ppb
2021-12-08CA3601182_004_004-2021120810425.30 ppb
2021-12-08CA3601182_003_003-202112081046ND
2021-12-15CA3601182_001_001-20211215114238.0 ppb
2021-12-15CA3601182_002_002-2021121511596.70 ppb
2021-12-21CA3601182_002_002-2021122111305.30 ppb
2021-12-28CA3601182_002_002-2021122812356.40 ppb
2022-01-04CA3601182_004_004-2022010411105.10 ppb
2022-01-04CA3601182_003_003-202201041118ND
2022-01-11CA3601182_001_001-20220111122936.0 ppb
2022-01-11CA3601182_002_002-2022011112397.10 ppb
2022-01-19CA3601182_002_002-2022011915047.90 ppb
2022-01-25CA3601182_002_002-2022012513077.60 ppb
2022-02-02CA3601182_003_003-2022020211434.90 ppb
2022-02-02CA3601182_004_004-2022020211388.40 ppb
2022-02-09CA3601182_002_002-2022020911299.60 ppb
2022-02-15CA3601182_002_002-2022021512389.40 ppb
2022-02-15CA3601182_003_003-2022021512455.80 ppb
2022-02-23CA3601182_002_002-2022022311099.60 ppb
2022-03-15CA3601182_002_002-2022031512214.00 ppb
2022-03-15CA3601182_001_001-20220315120733.0 ppb
2022-03-22CA3601182_002_002-2022032212054.20 ppb
2022-03-29CA3601182_002_002-2022032911595.30 ppb
2022-04-05CA3601182_004_004-2022040513234.90 ppb
2022-04-05CA3601182_001_001-20220405130837.0 ppb
2022-04-05CA3601182_003_003-202204051327ND
2022-04-12CA3601182_004_004-2022041210455.80 ppb
2022-04-19CA3601182_002_002-2022041912457.90 ppb
2022-04-26CA3601182_002_002-2022042612179.30 ppb
2022-05-03CA3601182_003_003-2022050311516.00 ppb
2022-05-03CA3601182_004_004-2022050311479.50 ppb
2022-05-10CA3601182_003_003-2022051011527.70 ppb
2022-05-17CA3601182_003_003-2022051712019.40 ppb
2022-05-25CA3601182_001_001-20220525100842.0 ppb
2022-06-14CA3601182_003_003-2022061411473.00 ppb
2022-06-21CA3601182_002_002-2022062111157.50 ppb
2022-06-30CA3601182_002_002-2022063012154.70 ppb
2022-07-05CA3601182_004_004-2022070511104.30 ppb
2022-07-05CA3601182_003_003-202207051120ND
2022-07-12CA3601182_002_002-2022071212204.20 ppb
2022-07-19CA3601182_001_001-20220719123334.0 ppb
2022-07-19CA3601182_002_002-2022071912555.10 ppb
2022-07-26CA3601182_002_002-2022072611215.50 ppb
2022-08-02CA3601182_004_004-2022080211074.30 ppb
2022-08-02CA3601182_003_003-202208021110ND
2022-08-09CA3601182_003_003-2022080911552.60 ppb
2022-08-09CA3601182_004_004-2022080911456.20 ppb
2022-08-16CA3601182_002_002-2022081611368.70 ppb
2022-08-23CA3601182_002_002-20220823095411.0 ppb
2022-09-13CA3601182_003_003-202209131114ND
2022-09-13CA3601182_004_004-2022091311103.30 ppb
2022-09-20CA3601182_002_002-2022092012134.00 ppb
2022-10-04CA3601182_003_003-2022100411513.70 ppb
2022-10-04CA3601182_004_004-2022100411475.60 ppb
2022-10-11CA3601182_002_002-2022101111393.80 ppb
2022-10-18CA3601182_002_002-2022101811135.30 ppb
2022-10-25CA3601182_002_002-2022102511268.50 ppb
2022-11-01CA3601182_004_004-2022110112036.20 ppb
2022-11-01CA3601182_003_003-2022110112073.40 ppb
2022-11-09CA3601182_002_002-2022110911178.50 ppb
2022-11-15CA3601182_004_004-2022111511309.50 ppb
2022-11-21CA3601182_001_001-20221121113837.0 ppb
2022-11-21CA3601182_004_004-202211211149ND
2022-11-30CA3601182_003_003-2022113011213.00 ppb
2022-11-30CA3601182_004_004-2022113011336.70 ppb
2022-12-06CA3601182_002_002-2022120612218.70 ppb
2022-12-14CA3601182_003_003-2022121411328.10 ppb
2022-12-14CA3601182_004_004-20221214112611.0 ppb
2022-12-14CA3601182_001_001-20221214111335.0 ppb
2023-01-06CA3601182_003_003-202301061111ND
2023-01-11CA3601182_001_001-20230111110234.0 ppb
2023-01-24CA3601182_002_002-2023012411313.80 ppb
2023-02-01CA3601182_003_003-2023020112105.60 ppb
2023-02-01CA3601182_004_004-2023020112067.50 ppb
2023-02-07CA3601182_002_002-20230207121812.0 ppb
2023-02-14CA3601182_002_002-20230214122414.0 ppb
2023-02-20CA3601182_002_002-20230220140019.0 ppb
2023-02-23CA3601182_DST_800-202302231028ND
2023-03-03CA3601182_DST_800-202303031122ND
2023-04-04CA3601182_001_001-20230404111534.0 ppb
2023-04-04CA3601182_004_004-2023040412192.40 ppb
2023-04-04CA3601182_003_003-202304041116ND
2023-04-11CA3601182_002_002-2023041112433.00 ppb
2023-04-11CA3601182_002_002-2023041112362.10 ppb
2023-04-27CA3601182_002_002-2023042712042.00 ppb
2023-05-03CA3601182_004_004-2023050311403.20 ppb
2023-05-03CA3601182_003_003-202305031155ND
2023-05-09CA3601182_002_002-2023050909483.00 ppb
2023-05-16CA3601182_002_002-2023051611153.20 ppb
2023-05-16CA3601182_002_002-2023051611223.80 ppb
2023-05-23CA3601182_002_002-2023052310024.10 ppb
2023-06-01CA3601182_003_003-202306011202ND
2023-06-01CA3601182_004_004-2023060111554.00 ppb
2023-06-06CA3601182_002_002-2023060611584.10 ppb
2023-06-20CA3601182_002_002-2023062011114.10 ppb
2023-06-27CA3601182_002_002-2023062711574.50 ppb
2023-07-05CA3601182_004_004-2023070511044.20 ppb
2023-07-05CA3601182_003_003-202307051105ND
2023-07-11CA3601182_002_002-2023071113523.70 ppb
2023-07-18CA3601182_002_002-2023071812183.80 ppb
2023-07-25CA3601182_002_002-2023072514403.80 ppb
2023-09-26CA3601182_003_003-20230926102034.0 ppb
2023-09-26CA3601182_004_004-2023092610303.60 ppb
2023-10-11CA3601182_002_002-2023101113203.60 ppb
2023-10-24CA3601182_002_002-2023102412063.70 ppb
2023-10-31CA3601182_002_002-2023103111503.70 ppb
2023-11-07CA3601182_002_002-2023110712003.60 ppb
2023-11-14CA3601182_004_004-2023111412553.90 ppb
2023-11-14CA3601182_003_003-202311141305ND
2023-11-21CA3601182_002_002-2023112112354.00 ppb
2023-11-29CA3601182_002_002-2023112910153.50 ppb
2023-12-05CA3601182_002_002-2023120510103.80 ppb
2023-12-12CA3601182_002_002-2023121212153.70 ppb
2023-12-19CA3601182_003_003-202312191500ND
2023-12-19CA3601182_004_004-2023121914503.40 ppb
2023-12-26CA3601182_002_002-2023122610153.60 ppb