Know Your Environment. Protect Your Health.

Arsenic

Coast Springs - Cal. Water Service (puc)

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.

 

110

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND190ND
2019ND190ND
2020ND180ND
20210.261 ppb182ND - 2.70 ppb
2022ND180ND
20230.833 ppb183ND - 8.10 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
2018-01-15CA2110007_001_001-201801151100ND
2018-01-15CA2110007_002_002-201801151200ND
2018-02-07CA2110007_001_001-201802071215ND
2018-04-12CA2110007_001_001-201804121245ND
2018-04-12CA2110007_002_002-201804121145ND
2018-06-26CA2110007_001_001-201806261230ND
2018-07-13CA2110007_002_002-201807131210ND
2018-07-13CA2110007_001_001-201807131335ND
2018-07-16CA2110007_006_006-201807161125ND
2018-07-16CA2110007_007_007-201807161155ND
2018-07-16CA2110007_008_008-201807161220ND
2018-07-23CA2110007_003_003-201807231150ND
2018-07-23CA2110007_004_004-201807231210ND
2018-07-26CA2110007_005_005-201807261140ND
2018-07-26CA2110007_016_016-201807261155ND
2018-08-06CA2110007_002_002-201808061045ND
2018-08-06CA2110007_010_010-201808061105ND
2018-10-14CA2110007_001_001-201810141015ND
2018-10-15CA2110007_002_002-201810151120ND
2019-01-28CA2110007_002_002-201901281130ND
2019-01-28CA2110007_001_001-201901281247ND
2019-02-12CA2110007_001_001-201902121145ND
2019-04-22CA2110007_001_001-201904221130ND
2019-04-22CA2110007_002_002-201904221255ND
2019-06-12CA2110007_001_001-201906121245ND
2019-06-17CA2110007_003_003-201906171100ND
2019-06-17CA2110007_002_002-201906171045ND
2019-07-08CA2110007_005_005-201907081340ND
2019-07-23CA2110007_002_002-201907231025ND
2019-07-23CA2110007_001_001-201907231235ND
2019-08-01CA2110007_010_010-201908011040ND
2019-08-12CA2110007_016_016-201908121025ND
2019-10-07CA2110007_004_004-201910071105ND
2019-10-07CA2110007_006_006-201910071035ND
2019-10-07CA2110007_008_008-201910071020ND
2019-10-07CA2110007_007_007-201910071000ND
2019-10-17CA2110007_002_002-201910171000ND
2019-10-17CA2110007_001_001-201910171040ND
2020-01-20CA2110007_001_001-202001200930ND
2020-02-11CA2110007_001_001-202002111105ND
2020-04-07CA2110007_001_001-202004071205ND
2020-04-07CA2110007_002_002-202004071100ND
2020-06-15CA2110007_005_005-202006151040ND
2020-06-15CA2110007_008_008-202006150945ND
2020-06-15CA2110007_007_007-202006151000ND
2020-06-15CA2110007_001_001-202006151120ND
2020-06-18CA2110007_016_016-202006181000ND
2020-06-24CA2110007_002_002-202006241245ND
2020-06-24CA2110007_003_003-202006241140ND
2020-06-24CA2110007_004_004-202006241200ND
2020-07-14CA2110007_001_001-202007141155ND
2020-07-14CA2110007_002_002-202007141055ND
2020-07-14CA2110007_010_010-202007141050ND
2020-10-05CA2110007_006_006-202010050730ND
2020-10-12CA2110007_001_001-202010121145ND
2020-10-12CA2110007_002_002-202010121150ND
2021-01-18CA2110007_001_001-202101181140ND
2021-01-18CA2110007_002_002-2021011812252.00 ppb
2021-02-10CA2110007_001_001-202102101130ND
2021-04-12CA2110007_001_001-202104120935ND
2021-04-12CA2110007_002_002-2021041211052.70 ppb
2021-06-14CA2110007_004_004-202106141210ND
2021-06-14CA2110007_001_001-202106141110ND
2021-06-14CA2110007_002_002-202106141155ND
2021-06-14CA2110007_006_006-202106141225ND
2021-06-22CA2110007_005_005-202106221035ND
2021-06-22CA2110007_008_008-202106221010ND
2021-06-22CA2110007_016_016-202106221100ND
2021-07-01CA2110007_007_007-202107011155ND
2021-07-05CA2110007_001_001-202107051120ND
2021-07-06CA2110007_003_003-202107060950ND
2021-07-06CA2110007_010_010-202107060900ND
2021-07-06CA2110007_002_002-202107060920ND
2021-10-19CA2110007_001_001-202110191000ND
2022-01-12CA2110007_001_001-202201121055ND
2022-02-01CA2110007_001_001-202202011100ND
2022-04-12CA2110007_001_001-202204121130ND
2022-04-26CA2110007_002_002-202204260935ND
2022-06-13CA2110007_001_001-202206131150ND
2022-06-14CA2110007_002_002-202206141145ND
2022-06-14CA2110007_007_007-202206141050ND
2022-06-14CA2110007_005_005-202206141215ND
2022-06-14CA2110007_006_006-202206141010ND
2022-06-14CA2110007_016_016-202206141225ND
2022-06-28CA2110007_008_008-202206281130ND
2022-07-19CA2110007_003_003-202207191100ND
2022-07-19CA2110007_004_004-202207191045ND
2022-07-19CA2110007_001_001-202207190930ND
2022-07-19CA2110007_002_002-202207191115ND
2022-07-19CA2110007_010_010-202207191210ND
2022-10-05CA2110007_002_002-202210051140ND
2022-10-05CA2110007_001_001-202210051045ND
2023-01-24CA2110007_002_002-202301241200ND
2023-01-24CA2110007_001_001-202301241040ND
2023-02-14CA2110007_001_001-202302141130ND
2023-04-17CA2110007_001_001-202304171020ND
2023-04-17CA2110007_002_002-202304171120ND
2023-06-06CA2110007_001_001-202306061140ND
2023-06-19CA2110007_005_005-202306190930ND
2023-06-19CA2110007_016_016-202306191000ND
2023-06-21CA2110007_006_006-202306210900ND
2023-06-21CA2110007_007_007-202306210930ND
2023-06-22CA2110007_008_008-202306221130ND
2023-06-27CA2110007_004_004-2023062709302.40 ppb
2023-06-28CA2110007_002_002-202306280945ND
2023-07-18CA2110007_010_010-202307181140ND
2023-07-25CA2110007_001_001-202307251150ND
2023-07-25CA2110007_002_002-2023072512258.10 ppb
2023-10-19CA2110007_001_001-202310190950ND
2023-10-19CA2110007_002_002-2023101911154.50 ppb