Know Your Environment. Protect Your Health.

Chloroform

City of Bogalusa Water System

Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Read More.

In addition to tap water disinfection, chloroform pollution in the environment also comes from industrial discharges from pulp and paper mills, and from urban wastewater effluent. Human studies show that chloroform damages the kidneys, liver and central nervous system. In animals, chloroform causes infertility, birth defects and cancer.

Click here to read more about disinfection byproducts.

 

128

Samples

0

Samples exceeding legal limit (MCL)

115

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.11 ppb3230ND - 1.80 ppb
20191.21 ppb3226ND - 2.40 ppb
20201.26 ppb1615ND - 1.80 ppb
20211.16 ppb16160.520 ppb - 1.90 ppb
20221.23 ppb1614ND - 2.00 ppb
20231.50 ppb16160.520 ppb - 4.30 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.4 ppb

The EWG Health Guideline of 0.4 ppb for chloroform was based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to fetal growth and development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-12353684070011.20 ppb
2018-01-12353684070020.690 ppb
2018-01-12353684070030.400 ppb
2018-01-12353684070040.700 ppb
2018-01-12353684070011.20 ppb
2018-01-12353684070020.690 ppb
2018-01-12353684070030.400 ppb
2018-01-12353684070040.700 ppb
2018-04-05353846300011.30 ppb
2018-04-05353846300020.520 ppb
2018-04-05353846300031.40 ppb
2018-04-05353846300041.80 ppb
2018-04-05353846300011.30 ppb
2018-04-05353846300020.520 ppb
2018-04-05353846300031.40 ppb
2018-04-05353846300041.80 ppb
2018-07-05354025390011.40 ppb
2018-07-05354025390021.40 ppb
2018-07-05354025390031.30 ppb
2018-07-05354025390041.50 ppb
2018-07-05354025390011.40 ppb
2018-07-05354025390021.40 ppb
2018-07-05354025390031.30 ppb
2018-07-05354025390041.50 ppb
2018-10-04354225490011.70 ppb
2018-10-0435422549002ND
2018-10-04354225490031.10 ppb
2018-10-04354225490041.30 ppb
2018-10-04354225490011.70 ppb
2018-10-0435422549002ND
2018-10-04354225490031.10 ppb
2018-10-04354225490041.30 ppb
2019-01-11354418650011.10 ppb
2019-01-11354418650020.510 ppb
2019-01-11354418650031.30 ppb
2019-01-11354418650041.10 ppb
2019-01-11354418650011.10 ppb
2019-01-11354418650020.510 ppb
2019-01-11354418650031.30 ppb
2019-01-11354418650041.10 ppb
2019-04-05354599590011.60 ppb
2019-04-0535459959002ND
2019-04-05354599590031.30 ppb
2019-04-05354599590041.20 ppb
2019-04-05354599590011.60 ppb
2019-04-0535459959002ND
2019-04-05354599590031.30 ppb
2019-04-05354599590041.20 ppb
2019-07-19354836710012.00 ppb
2019-07-1935483671002ND
2019-07-19354836710031.70 ppb
2019-07-19354836710041.80 ppb
2019-07-19354836710012.00 ppb
2019-07-1935483671002ND
2019-07-19354836710031.70 ppb
2019-07-19354836710041.80 ppb
2019-10-04355028580012.40 ppb
2019-10-0435502858002ND
2019-10-04355028580031.70 ppb
2019-10-04355028580041.60 ppb
2019-10-04355028580012.40 ppb
2019-10-0435502858002ND
2019-10-04355028580031.70 ppb
2019-10-04355028580041.60 ppb
2020-01-09355234120010.880 ppb
2020-01-09355234120020.580 ppb
2020-01-09355234120031.40 ppb
2020-01-09355234120041.20 ppb
2020-04-03355414630011.60 ppb
2020-04-0335541463002ND
2020-04-03355414630031.80 ppb
2020-04-03355414630041.80 ppb
2020-07-10355623780011.50 ppb
2020-07-10355623780021.40 ppb
2020-07-10355623780031.40 ppb
2020-07-10355623780041.20 ppb
2020-10-02355820990011.50 ppb
2020-10-02355820990020.630 ppb
2020-10-02355820990031.70 ppb
2020-10-02355820990041.60 ppb
2021-01-08356034830011.20 ppb
2021-01-08356034830020.750 ppb
2021-01-08356034830031.90 ppb
2021-01-08356034830041.60 ppb
2021-04-09356250800011.20 ppb
2021-04-09356250800020.700 ppb
2021-04-09356250800031.70 ppb
2021-04-09356250800040.970 ppb
2021-07-09356463690011.10 ppb
2021-07-09356463690020.520 ppb
2021-07-09356463690031.20 ppb
2021-07-09356463690041.20 ppb
2021-10-01356687370011.30 ppb
2021-10-01356687370020.710 ppb
2021-10-01356687370031.60 ppb
2021-10-01356687370040.970 ppb
2022-01-07356892150011.000 ppb
2022-01-0735689215002ND
2022-01-07356892150031.70 ppb
2022-01-07356892150041.10 ppb
2022-04-01357074970011.20 ppb
2022-04-01357074970020.630 ppb
2022-04-01357074970031.70 ppb
2022-04-01357074970041.40 ppb
2022-07-07357310640011.70 ppb
2022-07-07357310640022.00 ppb
2022-07-07357310640031.80 ppb
2022-07-07357310640041.80 ppb
2022-10-06357514580011.40 ppb
2022-10-0635751458002ND
2022-10-06357514580031.30 ppb
2022-10-06357514580040.960 ppb
2023-01-06357709680010.880 ppb
2023-01-06357709680020.520 ppb
2023-01-06357709680031.50 ppb
2023-01-06357709680040.960 ppb
2023-04-05357909120011.10 ppb
2023-04-05357909120020.580 ppb
2023-04-05357909120031.60 ppb
2023-04-05357909120041.20 ppb
2023-07-14358134410012.00 ppb
2023-07-14358134410020.680 ppb
2023-07-14358134410031.70 ppb
2023-07-14358134410041.50 ppb
2023-10-06358329610014.30 ppb
2023-10-06358329610022.50 ppb
2023-10-06358329610031.60 ppb
2023-10-06358329610041.30 ppb