Lake Del Valle
Reservoir in California · 661 acres · near Livermore
Lake Del Valle has 1 boat ramp listed as public.
California Department of Fish and Wildlife has detected golden mussels (latest detection 2026) in this water. Clean, drain and dry your boat, trailer and gear before you leave, and do not move water, plants or live bait to another water.
California Department of Fish and Wildlife · checked October 18, 2026
Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2016, 2017 and 2020 to 2026.
state reports compiled by U.S. EPA · checked October 18, 2026
Lake level: Lake Del Valle
Today's level loads here; without it, see the agency's page below.
Level from U.S. Army Corps of Engineers, Corps Water Management System (Del Valle Dam & Reservoir), about hourly; the agency's page. Levels change; check conditions at the ramp before you launch.
Launches
- Del Valle Lake Boat Launch · Boat ramp · near Livermore
Community
Where people who fish, boat and paddle Lake Del Valle talk about it. Lake associations, clubs and local groups will be added as we find them.
Wikidata: Q6475597