Groundwater Contamination

Given the current historic drought facing California, our groundwater resources are more precious than ever before. Los Angeles County is the most dependent on groundwater as a drinking water source than any other county in the state, yet much of our groundwater is highly contaminated. Our four main groundwater basins include the San Fernando, San Gabriel, Central and West Coast Basins. The San Fernando Water Basin provides about 80% of all local groundwater. Contaminated groundwater plumes in these basins continue to migrate into clean water aquifers, and the need for remediating these is a critical goal in the next few years.

The Del Amo, Montrose, and surrounding industrial sites around the Torrance and Carson area (both operating and non-operating) are contributors to the big picture groundwater contamination due to the commingled plumes that are extremely difficult to remediate. The need for better groundwater cleanup technologies is essential to address the contaminated areas and others impacting our basins. For over two years, key leaders, environmentalists, scientific experts, and regulatory agencies have convened three times each year to discuss ways to deal with this mounting problem that is only getting worse.

Recent Documents:

Fact Sheet: Functional Tests for the Groundwater Treatment System (April 2016)

In the News: 

Industrial Pollution is Threatening our Drinking Water: A Dispatch from Los Angeles County (Truth-Out.org)

Swimming pool in Maywood, Los Angeles, where a pilot project is aimed at tackling groundwater pollution in the county. (Photo: Daniel Ross)

Swimming pool in Maywood, Los Angeles, where a pilot project is aimed at tackling groundwater pollution in the county. (Photo: Daniel Ross)

Groundwater Contamination Resources:

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