226.219—Critical habitat for the Southern Distinct Population Segment of North American Green Sturgeon (Acipenser medirostris).

Critical habitat is designated for the Southern Distinct Population Segment of North American green sturgeon (Southern DPS) as described in this section. The textual descriptions of critical habitat in this section are the definitive source for determining the critical habitat boundaries. The overview maps are provided for general guidance purposes only and not as a definitive source for determining critical habitat boundaries.
(a) Critical habitat boundaries. Critical habitat in freshwater riverine areas includes the stream channels and a lateral extent as defined by the ordinary high-water line ( 33 CFR 329.11 ). In areas for which the ordinary high-water line has not been defined pursuant to 33 CFR 329.11, the lateral extent will be defined by the bankfull elevation. Bankfull elevation is the level at which water begins to leave the channel and move into the floodplain and is reached at a discharge which generally has a recurrence interval of 1 to 2 years on the annual flood series. Critical habitat in bays and estuaries includes tidally influenced areas as defined by the elevation of mean higher high water. The boundary between coastal marine areas and bays and estuaries are delineated by the COLREGS lines ( 33 CFR 80 ). Critical habitat in coastal marine areas is defined by the zone between the 60 fathom (fm) depth bathymetry line and the line on shore reached by mean lower low water (MLLW), or to the COLREGS lines.
(3) Sacramento-San Joaquin Delta, California: Critical habitat is designated to include the Sacramento-San Joaquin Delta including all waterways up to the elevation of mean higher high water within the area defined in California Water Code Section 12220, except for the following excluded areas: Clifton Court and California Aqueduct Intake Channel (all reaches upstream from the Clifton Court Radial Gates at 37°49′47″ N./121°33′25″ W.); Delta-Mendota Canal (upstream from 37°48′58″ N./121°33′30″ W.); Fivemile Slough (all reaches upstream from its confluence with Fourteenmile Slough at 38°00′50″ N./121°22′09″ W.); Indian Slough and Werner Cuts (all reaches between the entrance to Discovery Bay at 37°55′8″ N./121°35′12″ W. and the junction of Werner Cut and Rock Slough at 37°58′14″ N./121°35′41″ W.); Italian Slough (all reaches upstream from 37°51′39″ N./ 121°34′53″ W.); Rock Slough (all reaches upstream from the junction with the Old River at 37°58′22″ N./121°34′40″ W.); Sand Mound Slough (all reaches upstream from 37°58′37″ N./121°37′19″ W.); Sacramento Deep Water Ship Channel (upstream from the confluence with Cache Slough at 38°14′13″ N./121°40′23″ W.); Sevenmile Slough (all reaches between Threemile Slough at 38°06′55″ N./121°40′55″ W. and Jackson Slough at 38°06′59″ N./121°37′44″ W.); Snodgrass Slough (all reaches upstream from Lambert Road at 38°18′33″ N./121°30′46″ W.); Tom Paine Slough (all reaches upstream from its confluence with Middle River at 37°47′25″ N./121°25′08″ W.); Trapper Slough (all reaches upstream from 37°53′36″ N./121°29′15″ W.); Unnamed oxbow loop (upstream from the confluence with the San Joaquin River at 37°43′9″ N./121°16′36″ W.); Unnamed oxbow loop (upstream from the confluence with the San Joaquin River at 37°46′9″ N./121°18′6″ W.).
(i) San Francisco Bay, San Pablo Bay, and Suisun Bay in California. All tidally influenced areas of San Francisco Bay, San Pablo Bay, and Suisun Bay up to the elevation of mean higher high water, including, but not limited to, areas upstream to the head of tide endpoint in: Adobe Creek (38°12′42″ N./122°36′6″ W.); Alameda Creek (37°36′47″ N./122°4′18″ W.); Arroyo Corte Madera del Presidio (37°53′43″ N./122°31′48″ W.); Black John Slough (38°8′12″ N./122°33′42″ W.); Black John Slough (38°7′59″ N./122°32′54″ W.); Carneros Creek (38°13′52″ N./122°18′49″ W.); Colma Creek (37°39′6″ N./122°25′9″ W.); Coyote Creek (37°52′45″ N./122°31′31″ W.); Coyote Creek (37°27′17″ N./121°55′36″ W.); Coyote Creek, unnamed waterway (37°27′56″ N./121°55′40″ W.); Coyote Creek, unnamed waterway (37°26′23″ N./121°57′29″ W.); Coyote Creek, unnamed waterway (37°27′15″ N./121°56′12″ W.); Coyote Hills Slough (37°34′26″ N./122°3′36″ W.); Deverton Creek (38°13′38″ N./121°53′47″ W.); Gallinas Creek (38°0′50″ N./122°32′24″ W.); Gallinas Creek, South Fork (38°0′4″ N./122°32′9″ W.); Green Valley Creek (38°12′49″ N./122°7′51″ W.); Hastings Slough (38°1′30″ N./122°3′35″ W.); Huichica Creek, unnamed tributary (38°12′36″ N./122°21′35″ W.); Mt Eden Creek (37°37′6″ N./122°7′23″ W.); Mud Slough, unnamed waterway (37°29′48″ N./121°57′14″ W.); Mud Slough, unnamed waterway (37°28′43″ N./121°57′3″ W.); Newark Slough (37°31′36″ N./122°3′24″ W.); Newark Slough, unnamed waterway (37°31′51″ N./122°4′7″ W.); Novato Creek (38°5′50″ N./122°33′52″ W.); Petaluma River (38°14′53″ N./122°38′17″ W.); Petaluma River, unnamed tributary (38°12′58″ N./122°34′23″ W.); Railroad Slough (38°13′30″ N./122°26′28″ W.); Richardson Bay, unnamed tributary (37°54′2″ N./122°31′36″ W.); San Antonio Creek, unnamed tributary (38°9′45″ N./122°34′1″ W.); San Clemente Creek (37°55′12″ N./122°30′25″ W.); San Francisco Bay shoreline (37°40′44″ N./122°10′18″ W.); San Francisquito Creek (37°27′10″ N./122°7′40″ W.); San Pablo Bay shoreline (38°2′44″ N./122°15′44″ W.); San Pablo Creek (37°58′6″ N./122°22′42″ W.); San Rafael Creek (37°58′5″ N./122°31′35″ W.); Seal Slough (37°34′9″ N./122°17′30″ W.); Suisun Marsh (38°2′28″ N./121°57′55″ W.); Suisun Marsh (38°2′50″ N./121°58′39″ W.); Suisun Marsh (38°2′42″ N./121°56′16″ W.); Suisun Marsh (38°2′30″ N./121°55′18″ W.); Suisun Marsh, Grizzly Bay shoreline (38°5′53″ N./122°0′35″ W.); Suisun Marsh, Grizzly Bay shoreline (38°6′49″ N./121°58′54″ W.); Suisun Marsh, Grizzly Bay shoreline (38°8′19″ N./121°59′31″ W.); Suisun Marsh, Grizzly Bay shoreline (38°8′6″ N./121°59′33″ W.); Tolay Creek (38°9′42″ N./122°26′49″ W.); Tolay Creek (38°9′6″ N./122°26′49″ W.); Walnut Creek (38°0′16″ N./122°3′41″ W.); Wildcat Creek (37°57′26″ N./122°22′45″ W.).
(ii) Humboldt Bay, California. All tidally influenced areas of Humboldt Bay up to the elevation of mean higher high water, including, but not limited to, areas upstream to the head of tide endpoint in: Elk River (40°43′45″ N./124°11′15″ W.); Elk River (40°45′9″ N./124°10′57″ W.); Elk River (40°45′7″ N./124°10′58″ W.); Eureka Slough (40°48′14″ N./124°7′15″ W.); Eureka Slough (40°48′18″ N./124°8′29″ W.); Eureka Slough (40°48′14″ N./124°8′22″ W.); Eureka Slough (40°48′9″ N./124°8′14″ W.); Freshwater Creek (40°46′43″ N./124°4′48″ W.); Freshwater Slough (40°47′18″ N./124°6′54″ W.); Freshwater Slough (40°47′10″ N./124°6′15″ W.); Freshwater Slough (40°48′3″ N./124°6′53″ W.); Gannon Slough (40°50′48″ N./ 124°4′54″ W.); Gannon Slough (40°50′37″ N./124°4′53″ W.); Jacoby Creek (40°50′22″ N./124°4′16″ W.); Jacoby Creek (40°50′25″ N./124°4′56″ W.); Liscom Slough (40°52′35″ N./124°8′14″ W.); Mad River Slough (40°53′14″ N./124°8′9″ W.); Mad River Slough (40°53′59″ N./124°8′1″ W.); Mad River Slough (40°54′1″ N./124°8′9″ W.); McDaniel Slough (40°51′54″ N./124°8′52″ W.); McDaniel Slough (40°51′39″ N./124°6′2″ W.); Rocky Gulch/Washington Gulch (40°49′52″ N./124°4′58″ W.); Salmon Creek (40°41′12″ N./124°13′10″ W.); Unnamed tributary (40°42′36″ N./124°15′45″ W.); White Slough (40°41′56″ N./124°12′18″ W.).
(iii) Coos Bay, Oregon. All tidally influenced areas of Coos Bay up to the elevation of mean higher high water, including, but not limited to, areas upstream to the head of tide endpoint in: Boone Creek (43°16′31″ N./124°9′26″ W.); Catching Creek (43°16′31″ N./124°9′11″ W.); Coalbank Slough (43°21′10″ N./124°13′17″ W.); Coos River, South Fork (43°22′32″ N./123°59′34″ W.); Cox Canyon Creek (43°16′13″ N./124°18′52″ W.); Daniels Creek (43°21′10″ N./124°5′29″ W.); Davis Creek (43°17′29″ N./124°14′30″ W.); Day Creek (43°18′59″ N./124°18′24″ W.); Delmar Creek (43°15′24″ N./124°13′52″ W.); Deton Creek (43°24′15″ N./124°3′53″ W.); Elliot Creek (43°17′45″ N./124°17′45″ W.); Goat Creek (43°15′42″ N./124°12′58″ W.); Haynes Inlet (43°27′56″ N./124°11′22″ W.); Hayward Creek (43°19′7″ N./124°19′59″ W.); Joe Ney Slough (43°20′12″ N./124°17′39″ W.); John B Creek (43°16′59″ N./124°18′27″ W.); Kentuck Slough (43°25′19″ N./124°11′19″ W.); Larson Slough (43°27′43″ N./124°11′38″ W.); Lillian Creek (43°21′41″ N./124°8′41″ W.); Mart Davis Creek (43°22′58″ N./124°5′38″ W.); Matson Creek (43°18′27″ N./124°8′16″ W.); Millicoma River, East Fork (43°25′50″ N./124°1′2″ W.); Millicoma River, West Fork (43°25′48″ N./124°2′50″ W.); Noble Creek (43°15′16″ N./124°12′54″ W.); North Slough (43°29′26″ N./124°13′14″ W.); Pony Creek (43°24′6″ N./124°13′55″ W.); Seelander Creek (43°17′15″ N./124°8′41″ W.); Shinglehouse Slough (43°19′4″ N./124°13′14″ W.); Stock Slough (43°19′58″ N./124°8′22″ W.); Talbot Creek (43°17′1″ N./124°17′49″ W.); Theodore Johnson Creek (43°16′16″ N./124°19′22″ W.); Unnamed Creek (43°17′24″ N./124°17′56″ W.); Unnamed Creek (43°18′27″ N./124°7′55″ W.); Unnamed Creek (43°21′12″ N./124°9′17″ W.); Vogel Creek (43°22′10″ N./124°8′49″ W.); Wasson Creek (43°16′3″ N./124°19′23″ W.); Willanch Slough (43°24′5″ N./124°11′27″ W.); Wilson Creek (43°16′51″ N./124°9′2″ W.); Winchester Creek (43°15′49″ N./124°19′10″ W.).
(vii) Lower Columbia River estuary, Washington and Oregon. All tidally influenced areas of the lower Columbia River estuary from the mouth upstream to river kilometer 74, up to the elevation of mean higher high water, including, but not limited to, areas upstream to the head of tide endpoint in: Bear Creek (46°10′0″ N./123°40′6″ W.); Big Creek (46°10′33″ N./123°35′30″ W.); Blind Slough/Gnat Creek (46°10′47″ N./123°31′45″ W.); Chinook River (46°18′14″ N./123°58′1″ W.); Deep Creek (46°19′3″ N./123°42′23″ W.); Driscol Slough (46°8′35″ N./123°23′44″ W.); Ferris Creek (46°10′5″ N./123°39′8″ W.); Grays River (46°21′34″ N./123°35′5″ W.); Hunt Creek (46°11′46″ N./123°26′30″ W.); Jim Crow Creek (46°16′19″ N./123°33′26″ W.); John Day River (46°9′13″ N./123°43′16″ W.); John Day River (46°9′10″ N./123°43′27″ W.); Klaskanine River (46°5′33″ N./123°44′52″ W.); Lewis and Clark River (46°5′52″ N./123°51′4″ W.); Marys Creek (46°10′12″ N./123°40′17″ W.); Seal Slough (46°19′20″ N./123°40′15″ W.); Sisson Creek (46°18′25″ N./123°43′46″ W.); Skamokawa Creek (46°19′11″ N./123°27′20″ W.); Skipanon River (46°9′31″ N./123°55′34″ W.); Wallacut River (46°19′28″ N./123°59′11″ W.); Wallooskee River (46°7′7″ N./123°46′25″ W.); Westport Slough/Clatskanie River (46°8′4″ N./123°13′31″ W.); Youngs River (46°4′11″ N./123°47′9″ W.).

Code of Federal Regulations

Code of Federal Regulations 781
[Please see PDF for image: ER09OC09.000 ]

Code of Federal Regulations

Code of Federal Regulations 782
[Please see PDF for image: ER09OC09.001 ]

Code of Federal Regulations

Code of Federal Regulations 783
[Please see PDF for image: ER09OC09.002 ]
[74 FR 52345, Oct. 9, 2009]