Know Your Environment. Protect Your Health.

Arsenic

New Iberia Water System (lAWCO)

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.

 

45

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.20 ppb124ND - 4.00 ppb
2019ND120ND
20200.230 ppb41ND - 0.920 ppb
20210.725 ppb82ND - 4.20 ppb
2022ND50ND
2023ND40ND

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
2018-06-26AE22011ND
2018-06-26AE220084.00 ppb
2018-06-26AE22011ND
2018-06-26AE220084.00 ppb
2018-10-02B1804758-0023.20 ppb
2018-10-02B1804758-0023.20 ppb
2018-10-02B1804758-004ND
2018-10-02B1804758-004ND
2018-10-1235424038003ND
2018-10-1235424038003ND
2018-11-08B1805338-002ND
2018-11-08B1805338-002ND
2019-01-28B1900362-001ND
2019-01-28B1900362-001ND
2019-01-2835445024001ND
2019-01-2835445024001ND
2019-02-1335448568003ND
2019-02-1335448568003ND
2019-05-2035470215001ND
2019-05-2035470215001ND
2019-08-2235493731001ND
2019-08-2235493731001ND
2019-11-1335512723001ND
2019-11-1335512723001ND
2020-02-06355295110010.920 ppb
2020-05-2035551972001ND
2020-08-2035572697001ND
2020-11-2335594839003ND
2021-03-1535621229001ND
2021-04-2635629133001ND
2021-05-03B2102116-0014.20 ppb
2021-07-20B2103287-002ND
2021-07-20B2103287-0051.60 ppb
2021-07-20B2103287-001ND
2021-07-2035649662001ND
2021-10-1935672243001ND
2022-02-1535697855003ND
2022-02-15B2200644-001ND
2022-05-26B2202613-001ND
2022-08-30B2204196-001ND
2022-12-02B2205704-001ND
2023-03-10B2301048-001ND
2023-06-14B2302576-001ND
2023-09-08B2303785-001ND
2023-12-07B2305239-001ND