Benzene
Hunters Creek Mobile Home Park
Benzene is a known human carcinogen. It also damages blood cells and the nervous system. Emissions from petroleum processing, hazardous waste landfills and underground storage tanks contaminate drinking water with benzene. Read More.
To protect against cancer risks, California set a public health goal for benzene in drinking water at 0.15 parts per billion, 30 times lower than the federal legal limit of 5 parts per billion.
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 | 0.328 ppb | 12 | 10 | ND - 0.960 ppb |
| 2015 | 0.108 ppb | 12 | 2 | ND - 1.10 ppb |
| 2016 | 0.252 ppb | 12 | 7 | ND - 0.640 ppb |
| 2017 | 0.404 ppb | 17 | 11 | ND - 0.960 ppb |
| 2018 | 0.223 ppb | 12 | 5 | ND - 0.810 ppb |
| 2019 | 0.158 ppb | 12 | 1 | ND - 1.90 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.15 ppb
The EWG Health Guideline of 0.15 ppb for benzene 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 benzene, established in 1987, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to benzene exposure.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-04 | 480-55466-2 | 0.560 ppb |
| 2014-03-04 | 480-55466-1 | 0.170 ppb |
| 2014-03-14 | 480-55466-3 | 0.460 ppb |
| 2014-06-24 | 480-62563-3 | ND |
| 2014-06-24 | 480-62563-1 | 0.340 ppb |
| 2014-06-24 | 480-62563-2 | ND |
| 2014-09-16 | 480-67414-1 | 0.150 ppb |
| 2014-09-16 | 480-67414-3 | 0.280 ppb |
| 2014-09-19 | 480-67414-2 | 0.200 ppb |
| 2014-12-16 | 480-73115-2 | 0.960 ppb |
| 2014-12-16 | 480-73115-3 | 0.360 ppb |
| 2014-12-16 | 480-73115-1 | 0.460 ppb |
| 2015-03-23 | 480-77293 | 1.10 ppb |
| 2015-03-23 | 480-77293-PH3 | ND |
| 2015-03-26 | 480-77293-2 | ND |
| 2015-06-30 | 480-83178-2 | 0.190 ppb |
| 2015-06-30 | 480-83178-1 | ND |
| 2015-06-30 | 480-83178-3 | ND |
| 2015-09-29 | 480-88161-1 | ND |
| 2015-09-29 | 480-88161-3 | ND |
| 2015-09-29 | 480-88161-2 | ND |
| 2015-12-15 | 480-92818-2 | ND |
| 2015-12-15 | 480-92818-1 | ND |
| 2015-12-15 | 480-92818-3 | ND |
| 2016-01-22 | 480-94302-3 | ND |
| 2016-01-22 | 480-94302-1 | ND |
| 2016-01-22 | 480-94302-2 | ND |
| 2016-04-22 | 480-98923-3 | 0.630 ppb |
| 2016-04-22 | 480-98923-2 | 0.640 ppb |
| 2016-04-22 | 480-98923-1 | ND |
| 2016-08-31 | 480-105292-6 | 0.610 ppb |
| 2016-08-31 | 480-105292-4 | 0.180 ppb |
| 2016-08-31 | 408-105292-5 | 0.330 ppb |
| 2016-12-05 | 480-110556-5 | 0.130 ppb |
| 2016-12-05 | 480-110556-4 | ND |
| 2016-12-05 | 480-110556-6 | 0.500 ppb |
| 2017-01-24 | 17P001308 | 0.570 ppb |
| 2017-01-24 | 17P001307 | ND |
| 2017-03-14 | 480-114642-3 | 0.360 ppb |
| 2017-03-14 | 480-114642-4 | 0.870 ppb |
| 2017-03-14 | 480-114642-2 | 0.470 ppb |
| 2017-05-09 | 480-117785-4 | 0.450 ppb |
| 2017-05-09 | 480-117785-3-POC | 0.320 ppb |
| 2017-05-09 | 480-117785-2-POC | ND |
| 2017-07-14 | 480-121322-2 | 0.600 ppb |
| 2017-07-14 | 480-121322-1 | ND |
| 2017-08-11 | 480-122658-6 | 0.670 ppb |
| 2017-08-11 | 480-122658-4 | ND |
| 2017-08-11 | 480-122658-5 | 0.870 ppb |
| 2017-11-14 | 480-127606-1 | 0.960 ppb |
| 2017-11-14 | 480-127606-2 | ND |
| 2017-11-14 | 480-127606-3 | ND |
| 2017-12-14 | 480-129082-1 | 0.720 ppb |
| 2018-03-31 | 480-133960-3 | 0.370 ppb |
| 2018-03-31 | 480-133960-1 | 0.810 ppb |
| 2018-03-31 | 480-133960-2 | 0.330 ppb |
| 2018-06-26 | D8F2922-01 | 0.590 ppb |
| 2018-06-26 | D8F2922-0 | ND |
| 2018-06-26 | D8F2922-02 | ND |
| 2018-09-27 | 8092385-05 | ND |
| 2018-09-27 | 8092385-06 | ND |
| 2018-09-27 | 8092385-04 | 0.570 ppb |
| 2018-11-15 | 480-145462-3 | ND |
| 2018-11-15 | 480-145462-4 | ND |
| 2018-11-15 | 480-145462-5 | ND |
| 2019-03-22 | 9033240-01 | ND |
| 2019-03-22 | 9033240-02 | ND |
| 2019-03-22 | 9033240-03 | ND |
| 2019-05-01 | R1903905-005 | ND |
| 2019-05-01 | R1903905-003 | ND |
| 2019-05-01 | R1903905-004 | ND |
| 2019-08-12 | EHS1900040580-SR | ND |
| 2019-08-12 | EHS1900040581-SR | 1.90 ppb |
| 2019-08-14 | 3052462004 | ND |
| 2019-12-31 | 3078958006 | ND |
| 2019-12-31 | 3078958003 | ND |
| 2019-12-31 | 3078958001 | ND |