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Caption: Water quality parameters have been measured in an on-going program by the California Department of Fish and Game in various watersheds in Marin and Sonoma counties from 1991-2002. The graph shows dissolved oxygen measurements in stations (going downstream left to right) along Lagunitas Creek from 2000 and 2001. 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 (SFRWQCB) 1995 Basin Plan (CRWQCB, 1995). The dissolved oxygen sag at L6 is in lower Nicasio Creek, where the minimum D.O. dropped to levels stressful to salmonids. See Map for water quality stations and Info Links for more information.
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