Know Your Environment. Protect Your Health.

Arsenic

Veiola Water Idaho

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.

 

272

Samples

7

Samples exceeding legal limit (MCL)

178

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20182.88 ppb2716ND - 17.0 ppb
20194.40 ppb3025ND - 18.0 ppb
20202.12 ppb7443ND - 15.0 ppb
20213.06 ppb3829ND - 15.0 ppb
20223.01 ppb2014ND - 15.0 ppb
20232.48 ppb8351ND - 16.2 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
2018-02-01I1804597ND
2018-02-05I1804986ND
2018-02-06I1805280ND
2018-02-12I1806151ND
2018-02-12I18061527.20 ppb
2018-03-12I181054117.0 ppb
2018-05-15I18218632.50 ppb
2018-05-15I1821851ND
2018-05-23I1823164ND
2018-06-06I18255863.40 ppb
2018-06-06I18255845.40 ppb
2018-06-06I18255835.10 ppb
2018-06-06I1825581ND
2018-06-21I18286464.00 ppb
2018-06-21I1828604ND
2018-06-21I1828603ND
2018-06-21I18286064.60 ppb
2018-06-21I18286083.00 ppb
2018-06-26I1829342ND
2018-06-26I18293452.20 ppb
2018-06-26I1829341ND
2018-07-02I18306753.90 ppb
2018-07-02I18305785.50 ppb
2018-07-10I18320424.50 ppb
2018-07-10I18320442.60 ppb
2018-07-18I18339642.60 ppb
2018-08-15I18398294.20 ppb
2019-02-19I19073903.70 ppb
2019-02-19I19073883.10 ppb
2019-02-19I1907386ND
2019-03-06I19098653.90 ppb
2019-03-06I19098683.10 ppb
2019-03-13I19112102.30 ppb
2019-03-27I19135152.50 ppb
2019-04-17I19173216.40 ppb
2019-04-18I19177152.90 ppb
2019-04-18I19177182.40 ppb
2019-06-12I1927972ND
2019-06-13I19282434.40 ppb
2019-07-03I19321185.80 ppb
2019-07-03I19322587.00 ppb
2019-07-09I19330334.40 ppb
2019-07-09I19330345.10 ppb
2019-07-10I1933346ND
2019-07-10I1933345ND
2019-07-10I19333413.60 ppb
2019-07-16I193443418.0 ppb
2019-07-19I1935267ND
2019-07-19I19352664.10 ppb
2019-07-23I19357566.20 ppb
2019-07-31I19374987.30 ppb
2019-08-28I194293014.0 ppb
2019-08-28I19429324.00 ppb
2019-09-05I19445238.70 ppb
2019-10-02I19496912.90 ppb
2019-10-09I19510153.70 ppb
2019-10-09I19510132.40 ppb
2020-01-29I20042883.10 ppb
2020-01-29I20042893.70 ppb
2020-01-29I20042862.10 ppb
2020-03-05I20100852.60 ppb
2020-03-05I2010083ND
2020-03-09I20104745.70 ppb
2020-03-17I2012067ND
2020-03-17I2012065ND
2020-05-11I20211665.30 ppb
2020-05-11I2021164ND
2020-05-11I20211673.90 ppb
2020-05-12I2021375ND
2020-05-12I20213742.20 ppb
2020-05-12I2021372ND
2020-05-12I20213774.40 ppb
2020-05-14I2022038ND
2020-05-27I20241805.90 ppb
2020-05-27I2024175ND
2020-05-27I2024178ND
2020-05-27I2024179ND
2020-06-22I20290964.40 ppb
2020-06-22I2029095ND
2020-06-22I2029093ND
2020-06-24I2029688ND
2020-06-24I2029686ND
2020-06-24I20296842.00 ppb
2020-06-24I2029690ND
2020-06-24I20296823.20 ppb
2020-06-24I3029683ND
2020-06-24I2029685ND
2020-06-24I2029689ND
2020-06-25I2029968ND
2020-06-25I20299772.10 ppb
2020-06-25I20299646.50 ppb
2020-06-25I20299634.00 ppb
2020-06-25I2029949ND
2020-06-25I20299675.20 ppb
2020-06-25I2029961ND
2020-06-25I20299702.20 ppb
2020-06-25I20299653.00 ppb
2020-06-25I20299624.60 ppb
2020-06-25I2029950ND
2020-07-06I20313742.00 ppb
2020-07-06I2031372ND
2020-07-06I2031371ND
2020-07-06I2031370ND
2020-07-06I20313683.00 ppb
2020-07-07I20316072.50 ppb
2020-07-07I20316052.20 ppb
2020-07-07I20316042.20 ppb
2020-07-07I20316092.30 ppb
2020-07-09I20323163.30 ppb
2020-07-09I20323202.70 ppb
2020-07-09I203231815.0 ppb
2020-07-15I2033263ND
2020-07-15I20332623.90 ppb
2020-07-15I20332502.00 ppb
2020-07-21I2034446ND
2020-07-21I20344504.10 ppb
2020-07-21I203447ND
2020-07-22I20347985.90 ppb
2020-07-22I20347972.50 ppb
2020-07-22I20347952.70 ppb
2020-07-28I2035874ND
2020-07-28I20358722.10 ppb
2020-07-28I2035876ND
2020-07-29I20361803.40 ppb
2020-07-29I2036178ND
2020-07-30I20363463.20 ppb
2020-07-30I20363454.10 ppb
2020-07-30I20363432.30 ppb
2020-09-02I20432702.70 ppb
2020-10-13I20512524.80 ppb
2020-10-13I20512502.10 ppb
2021-02-10I21064472.90 ppb
2021-02-10I21084442.00 ppb
2021-02-10I21064452.10 ppb
2021-02-10I21064422.40 ppb
2021-02-10I21064412.90 ppb
2021-02-22I2108110ND
2021-02-23I21083052.10 ppb
2021-02-23I2108307ND
2021-02-25I2108881ND
2021-02-25I2108882ND
2021-02-25I21088832.00 ppb
2021-03-10I2111204ND
2021-03-10I21112012.40 ppb
2021-03-31I2114461ND
2021-03-31I21144643.90 ppb
2021-04-14I2116875ND
2021-04-14I21168802.60 ppb
2021-04-21I21182672.60 ppb
2021-04-21I21182663.70 ppb
2021-06-02I2126624ND
2021-06-04I2127176ND
2021-06-09I21283594.60 ppb
2021-06-14I21291943.00 ppb
2021-06-16I21297463.20 ppb
2021-06-24I21315993.20 ppb
2021-07-06I21334164.30 ppb
2021-07-06I213341815.0 ppb
2021-07-06I213343110.00 ppb
2021-07-06I21334133.00 ppb
2021-07-07I21339712.10 ppb
2021-07-19I21362582.80 ppb
2021-07-27I21381693.00 ppb
2021-08-03I21395833.60 ppb
2021-08-03I21395914.10 ppb
2021-09-01I214579410.00 ppb
2021-10-12I21546362.50 ppb
2021-10-27I21579104.70 ppb
2021-10-27I21479095.70 ppb
2022-02-08I2206351ND
2022-02-28I2209478ND
2022-05-04I2221318ND
2022-05-11I2222577ND
2022-05-11I22225732.50 ppb
2022-06-08I22272832.80 ppb
2022-06-28I22308566.40 ppb
2022-06-28I22308432.10 ppb
2022-06-28I22308542.70 ppb
2022-07-12I22331264.30 ppb
2022-07-12I223312515.0 ppb
2022-07-12I22331243.10 ppb
2022-07-12I2233123ND
2022-07-19I2234591ND
2022-07-26I22359033.90 ppb
2022-08-03I22377903.70 ppb
2022-10-04I22494843.80 ppb
2022-10-04I22494813.80 ppb
2022-10-12I22511682.70 ppb
2022-11-07I22552753.30 ppb
2023-01-24I2301536-01ND
2023-03-08I2304392-014.20 ppb
2023-03-08I2304392-026.80 ppb
2023-03-08I2304392-035.70 ppb
2023-03-08I2304392-043.50 ppb
2023-03-08I2304392-052.10 ppb
2023-03-08I2304392-073.10 ppb
2023-03-08I2304392-082.60 ppb
2023-03-09I2304517-01ND
2023-03-09I2304517-022.70 ppb
2023-03-09I2304517-03ND
2023-03-09I2304517-05ND
2023-03-09I2304517-07ND
2023-03-09I2304517-08ND
2023-03-09I2304517-09ND
2023-04-26I2307945-013.40 ppb
2023-04-26I2307945-034.10 ppb
2023-04-26I2307945-05ND
2023-04-26I2307945-075.80 ppb
2023-04-26I2307950-03ND
2023-04-26I2307950-054.70 ppb
2023-04-26I2307950-06ND
2023-04-26I2307950-073.70 ppb
2023-04-27I2308073-01ND
2023-04-27I2308073-02ND
2023-04-27I2308073-033.90 ppb
2023-04-27I2308073-053.10 ppb
2023-04-27I2308073-062.40 ppb
2023-04-27I2308073-095.60 ppb
2023-05-03I2308473-017.20 ppb
2023-05-03I2308473-022.80 ppb
2023-05-03I2308473-035.70 ppb
2023-06-07I2311313-012.20 ppb
2023-06-07I2311303-01ND
2023-06-07I2311289-01ND
2023-06-07I2311276-012.20 ppb
2023-06-07I2311269-01ND
2023-06-07I2311310-012.80 ppb
2023-06-07I2311268-01ND
2023-06-07I2311287-012.30 ppb
2023-06-07I2311299-01ND
2023-06-07I2311291-012.10 ppb
2023-06-07I2311322-01ND
2023-06-09I2311494-016.20 ppb
2023-06-09I2311493-012.70 ppb
2023-06-09I2311483-01ND
2023-06-09I2311482-014.20 ppb
2023-06-09I2311481-013.50 ppb
2023-06-09I2311487-01ND
2023-06-09I2311479-014.60 ppb
2023-06-09I2311498-012.90 ppb
2023-06-09I2311484-012.90 ppb
2023-06-14I2311843-012.70 ppb
2023-06-14I2311835-018.60 ppb
2023-06-14I2311829-01ND
2023-06-27I2312920-014.60 ppb
2023-06-27I2312921-012.90 ppb
2023-07-06I2313595-015.30 ppb
2023-07-06I2313603-012.70 ppb
2023-07-13I2314344-015.60 ppb
2023-07-13I2314342-01ND
2023-07-13I2314346-01ND
2023-07-13I2314341-014.10 ppb
2023-07-13I2314335-01ND
2023-07-14I2314537-013.70 ppb
2023-07-19I2314930-0116.2 ppb
2023-07-26I2315515-01ND
2023-07-26I2315513-01ND
2023-07-26I2315525-01ND
2023-07-26I2315535-013.60 ppb
2023-07-26I2315536-013.60 ppb
2023-07-31I2315916-01ND
2023-07-31I2315912-012.50 ppb
2023-07-31I2315873-01ND
2023-07-31I2315880-01ND
2023-07-31I2315890-01ND
2023-07-31I2315875-012.30 ppb
2023-10-04I2321589-013.10 ppb
2023-10-04I2321592-013.20 ppb
2023-10-04I2321614-012.90 ppb
2023-11-01I2323665-013.40 ppb
2023-11-01I2323671-01ND
2023-11-01I2323669-013.20 ppb