Near Coasts, Rising Seas Could Also Push Up Long-Buried Toxic Contamination

Marquita Price outside her grandmother’s house in East Oakland. She worries that contaminated rising groundwater threatens the health of her family and their assets.

Laura Klivans / KQED

Marquita Price grew up spending lots of time at her grandmother’s one-story lavender house in Deep East Oakland. It’s a place she’s always considered home, and where her grandmother still lives. So Price, an urban planner, was upset to learn about a lesser-known aspect of climate change fueled by sea level rise: it could cause the groundwater beneath this formerly-industrial community to rise, and wreak slow-motion havoc in the process.

“How is that going to affect my family?” Price thought. “And my community and the assets that we worked so hard to hold?”

For many Bay Area residents who live near the water’s edge, little-publicized research indicates groundwater rising beneath their feet could start to manifest in 10-15 years, particularly in low-lying communities like Oakland. And that could resurface toxic substances that have lingered for years underground.