p-Dichlorobenzene
Triple R Mutual Water Company
p-Dichlorobenzene is a carcinogenic insecticide used in mothballs, and added to deodorant blocks made for trash cans and toilets. Long-term exposure can cause liver damage and kidney problems.
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 | ND | 10 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 6 ppb
The EWG Health Guideline of 6 ppb for p-dichlorobenzene 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): 75 ppb
The legal limit for p-dichlorobenzene, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1980s. This limit may not fully protect against the risk of cancer due to p-dichlorobenzene exposure.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2019-12-11 | CA5400670_011_011-201912111210 | ND |
| 2019-12-11 | CA5400670_002_002-201912111155 | ND |
| 2019-12-11 | CA5400670_005_005-201912111140 | ND |
| 2019-12-11 | CA5400670_008_008-201912111255 | ND |
| 2019-12-11 | CA5400670_001_001-201912111035 | ND |
| 2019-12-11 | CA5400670_006_006-201912111100 | ND |
| 2019-12-11 | CA5400670_007_007-201912111210 | ND |
| 2019-12-11 | CA5400670_004_004-201912110955 | ND |
| 2019-12-11 | CA5400670_010_010-201912111225 | ND |
| 2019-12-11 | CA5400670_009_009-201912111115 | ND |
| 2020-06-29 | CA5400670_011_011-202006291640 | ND |
| 2020-09-28 | CA5400670_011_011-202009281620 | ND |
| 2020-12-20 | CA5400670_011_011-202012201140 | ND |
| 2021-03-13 | CA5400670_011_011-202103131200 | ND |
| 2022-03-27 | CA5400670_011_011-202203271455 | ND |
| 2022-06-24 | CA5400670_009_009-202206241305 | ND |
| 2022-12-28 | CA5400670_007_007-202212281115 | ND |
| 2022-12-28 | CA5400670_001_001-202212281000 | ND |
| 2022-12-28 | CA5400670_008_008-202212281100 | ND |
| 2022-12-28 | CA5400670_006_006-202212281030 | ND |