Why are there still salt ponds in the SF Bay?
December 16, 2010 8:21 AM Subscribe
Why are levees around decommissioned salt ponds left in place?
posted by morganw to science & nature (5 answers total)
Cargill sold most of its salt ponds in the San Francisco Bay to create the Don Edwards National Wildlife Refuge
and other stuff
There's still salt production going on in the East Bay, but the ponds in the south and west sides of the bay aren't being used anymore.
While wildlife managers and government scientists live out their dream of designing a wetland mosaic on 16,500 acres of de-activated salt ponds surrounding the South Bay, they won’t be altering the 9,000-acre salt pond system that forms the core of the original Don Edwards San Francisco Bay National Wildlife Refuge.
A civil engineering firm says
Cargill Salt proposed a land transfer of part of the salt evaporation pond system to the National Wildlife Service. As part of the transfer, the evaporation ponds were operated to maintain the existing open water conditions in the ponds on an interim basis until the Service had established long-term plans for the preferred land uses and pond operations
Is it the principle of "first, do no harm?" because scientists don't know what will happen if the levees are removed or is it for flood control? The ponds do support wildlife, but the water is more stagnant than open tidelands. Surely this is altering the ecology.