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Caption: This chart shows minimum, average and maximum dissolved oxygen concentrations in Easkoot Creek at the park entrance bridge during the year 2000. The reference values represent the minimum Cold water habitat (7.0 mg/L) and Warm water habitat (5.0 mg/L) criteria from the San Francisco Bay Regional Water Quality Control Board 1995 Basin Plan (CRWQCB, 1995). Dissolved oxygen concentrations at this site were almost entirely below Cold water criteria. Data were collected by the Golden Gate National Recreation Area. See Map for water quality monitoring locations and Info Links for more information.
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