I usually require a contractor to clean up a small oil spill like this. We will remove all of the soil on this project and dispose it as mildly contaminated; I let it go this time.
October 23, 2020
October 16, 2020
Boulder Fence Silt Fence
I like boulder fence but I hate silt fence. I hate that it is plastic and not recyclable and that it ends up in the land fill. However, it is very strong and in this instance it is the right BMP.
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September 22, 2020
Beached Whale Beached Log
Is it a beached whale or a beached log? I think this 80 year old log on the Duwamish Waterway looks like Moby Dick. Did you know that the singer Moby is related to Herman Melville?
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May 29, 2020
Superfund Riverbank Cleanup
Photo: Port of Seattle
We started this superfund riverbank cleanup in 2013, finishing in early 2015. The project involved removing over 40,000 cubic yards of PCB-contaminated soil.
The project was in the inter-tidal zone; the contractor maintained vertical and horizontal separation between the excavation the the tide level.
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