p-Dichlorobenzene
Hillview Water Co-raymond
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | ND | 9 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
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 |
|---|---|---|
| 2015-07-28 | 5810-019-1220 | ND |
| 2015-12-14 | 5810-019-0947 | ND |
| 2016-10-18 | 5810-019-1207 | ND |
| 2017-01-16 | 5810-019-1200 | ND |
| 2017-04-11 | 5810-019-1114 | ND |
| 2018-03-06 | 5810-016-0806 | ND |
| 2018-08-01 | 5810-020-1020 | ND |
| 2018-08-01 | 5810-018-1040 | ND |
| 2018-08-28 | 5810-018-1310 | ND |
| 2018-09-19 | 5810-006-0914 | ND |
| 2018-09-19 | 5810-010-0821 | ND |
| 2018-09-19 | 5810-004-0845 | ND |
| 2018-10-11 | 5810-020-1338 | ND |
| 2018-10-12 | 5810-018-1400 | ND |
| 2019-01-10 | 5810-018-1020 | ND |
| 2019-01-10 | 5810-020-0955 | ND |
| 2019-04-23 | 5810-018-1500 | ND |
| 2019-04-23 | 5810-020-1445 | ND |