p-Dichlorobenzene
Cedar Springs Mobile Home Park Well #
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 |
|---|---|---|---|---|
| 2014 | 0.0125 ppb | 4 | 1 | ND - 0.0500 ppb |
| 2015 | 0.0225 ppb | 4 | 2 | ND - 0.0500 ppb |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-02-17 | L4899963-1 | ND |
| 2014-05-12 | L5015794-1 | ND |
| 2014-08-11 | L5157932-1 | ND |
| 2014-11-10 | L5284499-1 | 0.0500 ppb |
| 2015-02-09 | L5406152-1 | ND |
| 2015-05-11 | L5537685-1 | 0.0400 ppb |
| 2015-08-21 | L5706912-1 | 0.0500 ppb |
| 2015-11-09 | L5861152-1 | ND |
| 2016-02-08 | L6015148-1 | ND |
| 2016-05-09 | L6176791-1 | ND |
| 2016-08-15 | L6366570-1 | ND |
| 2016-11-14 | L6514085-1 | ND |
| 2017-02-13 | L6639633-1 | ND |
| 2018-01-29 | 3863771 | ND |