Sewage Cleanup


In March of 2024, Dimond Improvement Association selected our grant-proposal to help mycomitigate storm-related sewage overflows into the Sausal Creek drainage basin. The Sausal Creek watershed covers 4.2 square miles of mostly urbanized land, predominately in the Oakland Hills. During heavy-rain events, sewage spills into the creek, with fecal coliform bacteria and algae-blooms causing problems for everyone who lives, works, plays, or travels within proximity of the Sausal Creek. From the edge of Dimond Park, Sausal Creek travels through 4 miles of residential neighborhood, commercial property, and industrial land before emptying into San Francisco Bay estuary around Alameda Island.


We’re currently in planning stages for fieldwork that will occur this fall, after the Mediterranean-summer conditions have ended. We are planning to bolster areas around known overflows with coliform-capturing, nitrogen-loving species of locally growing fungi. Any installations will be fully biodegradable, and should result in the capture (and slower release) of nutrients into the creek, and are expected to result in improved water quality, with less coliform bacteria and fewer oxygen-depleting algal blooms.

Want to learn more? Contact Justin McDavid at


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