Summary:
- Groundwater pollution is a major environmental issue in California, with contaminants like nitrates, arsenic, and chromium-6 found in many wells and aquifers.
- Rising sea levels due to climate change are causing saltwater intrusion, further contaminating groundwater supplies and making them unusable for drinking or irrigation.
- Addressing groundwater pollution and the impacts of sea level rise will require significant investments in water infrastructure, as well as efforts to reduce pollution from agricultural and industrial sources.