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C o n t r a C o s t a C o u n t y <br />A l a m e d a C o u n t y <br />Contra Costa County <br />Alameda County <br />Alameda County <br />Santa Clara County <br />San Joaquin County <br /> Alameda County <br />A l a m e d a C o u n t y <br />S a n t a C l a r a C o u n t y <br />N <br />EW <br />S <br />20246Miles <br />Special consideration - San Lorenzo & Alameda Creeks <br />Data sources: <br />Alameda County Flood Control and Water Conservation District; ACCWP; <br />Zone 7 Water Agency; U.S. Census Bureau; U.S. Geological Survey; <br />William Lettis Associates (Oakland Museum creek and watershed mapping project); <br /> Balance Hydrologics and EIP Associates (Proposed test of the approach for the <br />ACCWP HMM Preliminary Map, July 2003) <br />LEGEND (see text also) <br />Attachment A: <br />HMP susceptibility map <br />c: <br />\ <br />e <br />s <br />r <br />i <br />\ <br />a <br />f <br />p <br />r <br />o <br />j <br />\ <br />h <br />m <br />p <br />v <br />i <br />e <br />w <br />s <br />_ <br />m <br />a <br />p <br />7 <br />Alameda Countywide <br />Clean Water Program <br />January 26, 2007 <br />Not included in HMP <br />Tidally influenced / depositional - exempt <br />Hill or high slope region (susceptible) <br />Special consideration - Codornices Creek <br />Streets <br />County boundary <br />Enclosed pipe or culvert <br />Engineered channel - concrete <br />Engineered channel - materials unknown <br />Earthen channel or connector <br />Natural creek or stream (susceptible) <br />Major watersheds <br />Major highways <br />Channel type <br />A B C D E F G H I J K L M N O P Q R S T U V W X Y Z AA BB CC DD EE FF GG HH II JJ KK LL MM <br />2 <br />4 <br />6 <br />8 <br />10 <br />12 <br />14 <br />16 <br />18 <br />20 <br />22 <br />24 <br />26 <br />28 <br />30 <br />32 <br />34 <br />36 <br />38 <br />40 <br />42 <br />A B C D E F G H I J K L M N O P Q R S T U V W X Y Z AA BB CC DD EE FF GG HH II JJ KK LL MM <br />2 <br />4 <br />6 <br />8 <br />10 <br />12 <br />14 <br />16 <br />18 <br />20 <br />22 <br />24 <br />26 <br />28 <br />30 <br />32 <br />34 <br />36 <br />38 <br />40 <br />42 <br />Project site