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Caption: Water quality parameters were measured by Point Reyes National Seashore in small tributaries of Lagunitas Creek, as well as a large tributary, Olema Creek and tributaries on the Point Reyes peninsula flowing into Drakes Bay, Drakes Estero and the Pacific Ocean from 1999-2001. The graph shows dissolved oxygen concentrations for tributaries of Drakes Estero. The reference values represent the minimum Cold water habitat (7.0 mg/L) and Warm water habitat (5.0 mg/L) criteria for dissolved oxygen from the San Francisco Bay Regional Water Quality Control Board (SFRWQCB) 1995 Basin Plan (CRWQCB, 1995). See Map for water quality stations and Info Links for more information.
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