Riverdale Water Quality
Latest water quality information for Riverdale, California
Last update on March 2025
Unsafe water with serious health risks.
Exceeds 3 EPA limits and 11 recommended standards.
Contaminants exceeding EPA limits
What it means: This refers to substances in the water that are found at levels higher than what the EPA allows. The EPA (Environmental Protection Agency) is a U.S. government agency that sets legal limits for harmful contaminants to protect public health. Exceeding these limits means the water may pose health risks based on federal safety standards.
Arsenic
17.50 ppbPotential Health Effects
Cancer
Total Dissolved Solids
663.40 ppmPotential Health Effects
Gastrointestinal issues
Contaminants exceeding recommended standards
What it means: This refers to substances in the water that are above health-based guidelines set by organizations such as the World Health Organization (WHO) and the U.S. Environmental Protection Agency (EPA). These standards, while not always legally enforceable, are based on scientific research to protect health. Exceeding them may indicate potential health concerns.
Boron
5.20 ppmPotential Health Effects
Reproductive issues
Bromoform
0.6000 ppbPotential Health Effects
Cancer
Chloroform
0.8000 ppbPotential Health Effects
Cancer
Conductivity
936 µS/cmPotential Health Effects
None
Dibromochloromethane
0.7000 ppbPotential Health Effects
Cancer
Lead
3.30 ppbPotential Health Effects
Neurotoxicity
Lead Level
3.30 ppbPotential Health Effects
Neurotoxicity
Sodium
238.20 ppmPotential Health Effects
Hypertension
Other Detected Contaminants
| Contaminant | Detected Level | EPA Limit | Recommended | Status |
|---|---|---|---|---|
| Calcium | 2.20 ppm | Not established | 80 ppm | Within limits |
| Chloride | 187.80 ppm | 250 ppm | 250 ppm | Within limits |
| Fluoride | 2.30 ppb | 4000 ppb | 2000 ppb | Within limits |
| Iron | 150.50 ppb | 300 ppb | 300 ppb | Within limits |
| Magnesium | 7.20 ppm | Not established | 30 ppm | Within limits |
| Manganese | 6.40 ppb | 50 ppb | 50 ppb | Within limits |
| Molybdenum | 11.40 ppb | Not established | 40 ppb | Within limits |
| Potassium | 582.80 ppb | Not established | 5000 ppb | Within limits |
| Silica | 24.70 ppm | Not established | 25 ppm | Within limits |
| Strontium | 27.90 ppb | Not established | 1500 ppb | Within limits |
| Zinc | 131.70 ppb | 5000 ppb | 5000 ppb | Within limits |
| No additional contaminants detected. | ||||
How to best protect from water pollution?
Reduce your water pollution exposure in California
Carbon Filter
Carbon filters are effective at removing many common contaminants including chlorine, sediment, volatile organic compounds (VOCs), and improves taste and odor.
Reverse Osmosis
Reverse osmosis systems can remove up to 99% of dissolved contaminants from water including heavy metals, fluoride, nitrates, and arsenic.