Jul 5, 2023 | Assessments, fish barriers, fishes-specific, habitat, monitoring, newsletters, water quality
The Napa River and its tributaries support a diverse community of native fishes, including 2 salmonid species: the California Central Coast steelhead trout (Oncorhynchus mykiss), a federally-listed Threatened Species, and Central Valley Fall/Late Fall Run Chinook...
Apr 6, 2023 | monitoring, water quality
from Paul Blank, Napa RCD Environmental Scientist March brought 11 storms and sixteen days of measurable rainfall to the Napa Valley. Rain totals observed at the County ALERT monitoring stations (napa.onerain.com) were well above average for the month, ranging between...
Feb 2, 2023 | newsletters, Uncategorized, water quality
from Paul Blank, Napa RCD Environmental Scientist Heavy December rainfall continued into January in the Napa Valley with nine storms and 14 days of rainfall observed at the County ALERT monitoring stations (napa.onerain.com). Rain totals were above average for the...
Oct 26, 2014 | water quality
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...
Oct 26, 2014 | water quality
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...
