Guadalupe Reservoir
Because of elevated mercury levels in fish, no one should consume any fish taken from Alamitos Creek, Almaden Lake, Almaden Reservoir, Calero Creek, Calero Reservoir, Guadalupe Creek, Guadalupe Reservoir, Guadalupe River, and the associated percolation ponds along the river and creeks.
Biotoxins from harmful algal blooms (HABs) may be found in California water bodies, see Resources related to Biotoxins and Harmful Algal Blooms for more information.
Waterbody
Women 18-49 Years and Children 1-17 Years
DO NOT EAT
Women 50 Years and Older and Men 18 Years and Older
DO NOT EAT
Resources related to Biotoxins and Harmful Algal Blooms
Harmful algal blooms are increasing in California and may occur throughout the year in some water bodies. OEHHA recommends that you check the California harmful algal bloom (HAB) portal to see if a bloom has been reported at this water body and learn healthy water habits to protect yourself, your family, and your pets during your visit.
Fish Advisory Map
View maps of current statewide and site-specific advisories
Fish, Ecotoxicology and Water Section
Sacramento Office
1001 I Street
Sacramento, CA 95814
Phone: (916) 423-7572
fish@oehha.ca.gov