Dichloromethane (methylene chloride)
Lake Erie Mobile Home Park LLC
Methylene chloride is a common industrial solvent used for paint stripping, vapor degreasing, printing, electronics manufacturing and cleaning. It causes cancer and liver damage in animal studies. Read More.
Surface and groundwater can be contaminated with methylene chloride from industrial releases and landfill leaching. The EPA considers methylene chloride likely carcinogenic to people. Long-term ingestion of drinking water with methylene chloride contamination can cause liver damage and cancer. Occupational exposure to methylene chloride and other solvents has been linked with increased risk of miscarriage. Birth defects have also been observed in studies of laboratory animals exposed to methylene chloride during pregnancy.
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 | ND | 11 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
| 2020 | ND | 8 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 10 | 0 | ND |
| 2023 | ND | 9 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 4 ppb
The EWG Health Guideline of 4 ppb for dichloromethane (methylene chloride) 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): 5 ppb
The legal limit for dichloromethane, established in 1992, was based on analytical detection limits at the time that the standard was set.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-17 | R1800451-002 | ND |
| 2018-01-17 | R1800451-001 | ND |
| 2018-02-14 | R1801318-004 | ND |
| 2018-02-14 | R1801318-003 | ND |
| 2018-03-06 | R1802013-003 | ND |
| 2018-05-23 | 2Q18 LEMHP POC EP5 | ND |
| 2018-05-23 | 2Q18 LEMHP POC EP1-4 | ND |
| 2018-08-22 | 3Q18 LEMHP POC EP5 | ND |
| 2018-08-22 | 3Q18 LEMHP POC EP1-4 | ND |
| 2018-10-24 | 4Q18 LEMHP POC EP1-4 | ND |
| 2018-10-24 | 4Q18 LEMHP POC EP5 | ND |
| 2019-03-20 | 1Q19 LEMHP POC EP1-4 | ND |
| 2019-03-20 | 1Q19 LEMHP POC EP5 | ND |
| 2019-05-15 | 2Q19 LEMHP POC EP5 | ND |
| 2019-05-15 | 2Q19 LEMHP POC EP1-4 | ND |
| 2019-08-21 | 3Q19 LEMHP POC EP1-4 | ND |
| 2019-08-21 | 3Q19 LEMHP POC EP5 | ND |
| 2019-11-20 | 4Q19 LEMHP POC EP1-4 | ND |
| 2019-11-20 | 4Q19 LEMHP POC EP5 | ND |
| 2020-02-12 | 1Q20 LEMHP POC EP1-4 | ND |
| 2020-02-12 | 1Q20 LEMHP POC EP5 | ND |
| 2020-04-22 | 2Q20 LEMHP POC EP5 | ND |
| 2020-04-22 | 2Q20 LEMHP POC EP1-4 | ND |
| 2020-08-19 | 3Q20 LEMHP POC EP1-4 | ND |
| 2020-08-19 | 3Q20 LEMHP POC EP5 | ND |
| 2020-11-11 | 4Q20 LEMHP POC EP5 | ND |
| 2020-11-11 | 4Q20 LEMHP POC EP1-4 | ND |
| 2021-02-23 | Q1 21 POCS LEE WL 5 | ND |
| 2021-02-23 | Q1 21 LEE WL1-4 | ND |
| 2021-05-12 | Q2 21 POC LEE WL1-4 | ND |
| 2021-05-12 | Q2 21 POCS LEE WL5 | ND |
| 2021-08-18 | Q3 21 POC LEE WL1-4 | ND |
| 2021-08-18 | Q3 21 POCS LEE WL5 | ND |
| 2021-11-10 | Q4 21 POC LEE WL1-4 | ND |
| 2021-11-10 | Q4 21 POC LEE WL5 | ND |
| 2022-03-16 | Q1 22 POC LEE WL1-4 | ND |
| 2022-03-16 | Q1 22 POC LEE WL5 | ND |
| 2022-05-17 | Q2 22 POC LEE WL1-4 | ND |
| 2022-05-17 | Q2 22 POC LEE WL5 | ND |
| 2022-06-29 | Q2 22 2ND WL5 | ND |
| 2022-06-29 | Q2 22 2ND WL1-4 | ND |
| 2022-09-20 | 2022 POCS LEE EP5 | ND |
| 2022-09-20 | 2022 POCS LEE EP1 | ND |
| 2022-11-16 | Q4 22 POC LEE WL5 | ND |
| 2022-11-16 | Q4 22 POC LEE WL1-4 | ND |
| 2023-03-22 | Q1 23 POC LEE WL1-4 | ND |
| 2023-03-22 | 2023 LEE EP1 POCS | ND |
| 2023-03-22 | Q1 23 POC LEE EP5 | ND |
| 2023-04-19 | Q2 23 POC LEE EP5 | ND |
| 2023-04-19 | Q2 23 POC LEE WL1-4 | ND |
| 2023-07-19 | Q3 23 POC LEE WL1-4 | ND |
| 2023-07-19 | Q3 23 POC LEE EP5 | ND |
| 2023-12-27 | Q4 23 POC LEE WL1-4 | ND |
| 2023-12-27 | Q4 23 POC LEE EP5 | ND |