Signal Hill - City, Water Dept.
Signal Hill, CA
CA1910149
Contaminants Exceeding Limits
The following contaminants have exceeded the guideline limits at least once in the past ten years.
- CH
Chlorate
Chlorate forms when chlorine-based disinfectants react with water. It's a byproduct of water treatment that can interfere with thyroid function, especially in infants and pregnant women.
Other Contaminants Detected
The following contaminants have been detected, but not exceeded the guideline limits in the past ten years.
1,4-Dioxane
1 detection
| Avg Result: | 0.050 ppb |
|---|---|
| Limit: | 0.350 ppb |
Arsenic
85 detections
| Avg Result: | 4.063 ppb |
|---|---|
| Limit: | 10.000 ppb |
Barium
1 detection
| Avg Result: | 0.020 ppm |
|---|---|
| Limit: | 2.000 ppm |
Benzene
66 detections
| Avg Result: | 1.098 ppb |
|---|---|
| Limit: | 5.000 ppb |
Bromodichloromethane
52 detections
| Avg Result: | 5.717 ppb |
|---|---|
| Limit: | 80.000 ppb |
Bromoform
52 detections
| Avg Result: | 2.463 ppb |
|---|---|
| Limit: | 80.000 ppb |
Contaminants tested
Contaminants that have been tested but not detected
Summary
- People Served
- 11.8K
- Surface Water
- Los Angeles County
- Data from 2014-2024
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