Chloroform
Lake Erie Mobile Home Park LLC
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | 1.20 ppb | 1 | 1 | 1.20 ppb |
| 2020 | 1.10 ppb | 2 | 1 | ND - 2.20 ppb |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | 1.07 ppb | 5 | 4 | ND - 2.70 ppb |
| 2023 | 0.861 ppb | 8 | 6 | ND - 2.70 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 |
|---|---|---|
| 2019-08-21 | 2019 DBP LEMHP | 1.20 ppb |
| 2020-08-19 | 20 DBPS LEMHP 133 | ND |
| 2020-08-19 | 20 DBPS LEMHP 56 | 2.20 ppb |
| 2022-03-16 | Q1 22 POC LEE WL5 | ND |
| 2022-03-16 | Q1 22 POC LEE WL1-4 | 2.70 ppb |
| 2022-06-29 | Q2 22 2ND WL1-4 | 0.650 ppb |
| 2022-09-20 | 2022 POCS LEE EP1 | 0.800 ppb |
| 2022-11-16 | Q4 22 POC LEE WL1-4 | 1.20 ppb |
| 2023-03-22 | Q1 23 POC LEE WL1-4 | 0.670 ppb |
| 2023-03-22 | 2023 LEE EP1 POCS | 0.670 ppb |
| 2023-04-19 | Q2 23 POC LEE WL1-4 | 0.680 ppb |
| 2023-07-19 | Q3 23 POC LEE WL1-4 | 2.70 ppb |
| 2023-07-19 | Q3 23 POC LEE EP5 | ND |
| 2023-08-16 | 2023 DBP LEMHP | 0.870 ppb |
| 2023-12-27 | Q4 23 POC LEE EP5 | ND |
| 2023-12-27 | Q4 23 POC LEE WL1-4 | 1.30 ppb |