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Watershed & Wallet-friendly Roads

Learn about the influences roads can have on hydrology and water quality in rural watersheds.In rural watersheds, roads are one of the most significant and easily controlled sources of modification to the stream systems. Road systems can have three major impacts on...

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Stormdrain Outflow

At the request of the Napa Countywide Stormwater Pollution Prevention Program (NCSPPP), Napa County Resource Conservation District (RCD) conducted a countywide dry-weather assessment of municipal storm drain outfalls to assist in compliance with waste discharge...

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Gravel Permeability

The RCD measures gravel permeability to determine how suitable streambed gravels are for salmonid egg incubation and larval (alevin) development. This is based on the fact that salmonid egg and alevin survival is correlated with the amount of flow through the gravels...

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