MTBE
Laurel Village Mobile Home Park
MTBE was used as gasoline oxygenation additive to boost the octane number. In 2005, MTBE was replaced by ethanol as a gasoline additive. MTBE causes cancers in rats.
31
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 0.408 ppb | 4 | 3 | ND - 0.570 ppb |
| 2019 | 2.06 ppb | 4 | 3 | ND - 6.58 ppb |
| 2020 | 0.715 ppb | 4 | 1 | ND - 2.86 ppb |
| 2021 | 2.50 ppb | 4 | 4 | 2.25 ppb - 2.61 ppb |
| 2022 | 1.55 ppb | 8 | 7 | ND - 2.10 ppb |
| 2023 | 2.18 ppb | 7 | 7 | 1.95 ppb - 2.63 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 13 ppb
The EWG Health Guideline of 13 ppb for MTBE 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.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-12-06 | S816920 | 0.500 ppb |
| 2018-12-06 | S816921 | ND |
| 2018-12-06 | S816924 | 0.560 ppb |
| 2018-12-06 | S816918 | 0.570 ppb |
| 2019-12-18 | S932357 | 1.07 ppb |
| 2019-12-18 | S932358 | ND |
| 2019-12-18 | S932360 | 6.58 ppb |
| 2019-12-18 | S932362 | 0.580 ppb |
| 2020-02-24 | S932614 | ND |
| 2020-02-24 | S932618 | 2.86 ppb |
| 2020-02-24 | S943432 | ND |
| 2020-02-24 | S943435 | ND |
| 2021-12-02 | S1148688 | 2.25 ppb |
| 2021-12-16 | S1159484 | 2.57 ppb |
| 2021-12-16 | S1159200 | 2.61 ppb |
| 2021-12-16 | S1159204 | 2.56 ppb |
| 2022-08-19 | S1216747 | 1.49 ppb |
| 2022-08-19 | S1216749 | 1.66 ppb |
| 2022-08-19 | S1216745 | ND |
| 2022-08-19 | S1216743 | 1.82 ppb |
| 2022-09-29 | S1230895 | 1.89 ppb |
| 2022-09-29 | S1230893 | 2.10 ppb |
| 2022-09-29 | S1230891 | 1.41 ppb |
| 2022-09-29 | S1230889 | 2.01 ppb |
| 2023-01-31 | S1260859 | 2.22 ppb |
| 2023-01-31 | S1260927 | 2.03 ppb |
| 2023-01-31 | S1261011 | 2.08 ppb |
| 2023-01-31 | S1261013 | 2.19 ppb |
| 2023-03-08 | S1272406 | 1.95 ppb |
| 2023-03-08 | S1272410 | 2.19 ppb |
| 2023-03-08 | S1272412 | 2.63 ppb |