ultraviolet index in Holt (Whiskey Slough) (4 mi.) | ultraviolet index in Borden Highway Bridge (Old River) (5 mi.) | ultraviolet index in Orwood (Old River) (5 mi.) | ultraviolet index in Grant Line Canal (drawbridge) (5 mi.) | ultraviolet index in Blackslough Landing (8 mi.) | ultraviolet index in Borden Highway Bridge (San Joaquin River) (9 mi.) | ultraviolet index in Wards Island (Little Connection Slough) (11 mi.) | ultraviolet index in Irish Landing (Sand Mound Slough) (11 mi.) | ultraviolet index in Bishop Cut (Disappointment Slough) (11 mi.) | ultraviolet index in Stockton (12 mi.) | ultraviolet index in Davis Slough (12 mi.) | ultraviolet index in Prisoners Point (12 mi.) | ultraviolet index in False River (15 mi.) | ultraviolet index in Terminous (South Fork) (15 mi.) | ultraviolet index in Georgiana Slough Entrance (17 mi.) | ultraviolet index in Threemile Slough Entrance (17 mi.) | ultraviolet index in Threemile Slough (19 mi.) | ultraviolet index in Antioch (20 mi.) | ultraviolet index in Rio Vista (21 mi.) | ultraviolet index in Steamboat Slough (Snug Harbor Marina) (22 mi.)