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California Department of Fish and Game Natural Diversity Database Full Condensed Report for Selected Elements-Multiple Records per Page Rana draytonii California red-legged frog Element Code:AAABH01022 Status NDDB Element Ranks Other Lists Federal: Threatened Global:G4T2T3 CDFG Status: SC State: None State:S2S3 Habitat Associations General: LOWLANDS&FOOTHILLS IN OR NEAR PERMANENT SOURCES OF DEEP WATER WITH DENSE,SHRUBBY OR EMERGENT RIPARIAN VEGETATION. Micro: REQUIRES 11-20 WEEKS OF PERMANENT WATER FOR LARVAL DEVELOPMENT.MUST HAVE ACCESS TO ESTIVATION HABITAT. Occurrence No.544 Map Index: 48701 EO Index: 48701 Dates Last Seen Occ Rank: Unknown Element: 1981-12-09 Origin: Natural/Native occurrence Site: 1981-12-09 Presence: Presumed Extant Trend: Unknown Record Last Updated: 2002-09-09 Quad Summary:Clifton Court Forebay(3712175/463D) County Summary:Contra Costa LaULong: 37.82774°/-121.62389° Township: 01S UTM: Zone-10 N4187594 E621103 Range: 03E Radius: 1/10 mile Mapping PrecisionNOWSPECIFIC Section: 22 Qtr:SE Elevation: 50 ft Symbol Type:POINT Meridian: M Location:1.5 MILES SSE OF BYRON HOT SPRINGS;0.24 MILE SOUTH OF BYRON HOT SPRINGS RD X HOLEY RD. Location Detail:SE 1/4 OF SE 1/4 OF SECTION 22. Ecological:HABITAT CONSISTS OF FARM POND AND GRASSLAND.AREA USED FOR CATTLE GRAZING. General: 1 ADULT OBSERVED ON 9 DEC 1981. Owner/Manager:UNKNOWN Occurrence No.602 Map Index: 50000 EO Index: 50000 Dates Last Seen Occ Rank: Excellent Element: 2005-03-09 Origin: Natural/Native occurrence Site: 2005-03-09 Presence: Presumed Extant Trend: Unknown Record Last Updated: 2005-05-19 Quad Summary:Clifton Court Forebay(3712175/463D) County Summary:Alameda LaULong: 37.75802°/-121.57936° Township: 02S UTM: Zone-10 N4179917 E625140 Range: 04E Area: 12.1 acres Mapping PrecisionSPECIFIC Section: 18 Qtr:SW Elevation: 200 ft Symbol Type:POLYGON Meridian: M Location:UNNAMED DRAINAGE,LOCATED DOWNHILL OF THE CALIFORNIA AQUEDUCT,AT MILEAGE POST 7.56E,0.3 MILE NW OF MOUNTAIN HOUSE Location Detail:DRAINAGE IS BEING PARTIALLY CLEARED OF VEGETATION AND SEDIMENT IN 2002,PER THE USFWS BIOLOGICAL OPINION. Ecological:HABITAT CONSISTS OF A DRAINAGE FLOWING DOWNSTREAM OF THE CALIFORNIA AQUEDUCT;CATTAILS DOMINATE DRAINAGE.SITE IS SURROUNDED BY GRAZED ANNUAL GRASSLAND AND THE AQUEDUCT SYSTEM. General: 2 ADULTS OBSERVED ON 22 SEP 2002.1 ADULT OBSERVED ON 28 JUL 2004.5 ADULTS,20 JUVENILES,AND 2 LARVAE OBSERVED ON 16 SEP 2004.1 ADULT OBSERVED ON 29 DEC 2004.1 ADULT,1 JUVENILE,AND 12 EGG MASSES OBSERVED ON 9 MAR 2005. Owner/Manager:DWR Occurrence No.614 Map Index: 50127 EO Index: 50127 — Dates Last Seen Occ Rank: Poor Element: 2002-06-XX Origin: Natural/Native occurrence Site: 2002-06-XX Presence: Presumed Extant Trend: Unknown Record Last Updated: 2003-02-11 Quad Summary:Byron Hot Springs(3712176/463C),Clifton Court Forebay(3712175/463D) County Summary:Alameda LaULong: 37.76468x/-121.62666° Township: 02S UTM: Zone-10 N4180594 E620962 Range: 03E Radius: 80 meters Mapping PrecisionSPECIFIC Section: 15 Qtr:NE Elevation: 500 ft Symbol Type:POINT Meridian: M Location:0.9 MILE SOUTH OF THE SOUTH BAY PUMPING PLANT ON BETHANY RESERVOIR Ecological:HABITAT CONSISTS OF A STOCK POND ON AN UNNAMED TRIBUTARY FLOWING TO BETHANY RESERVOIR.STOCK POND IS-100'IN DIAMETER; ONLY 20%VEGETATED.SURROUNDED BY LANDFILL TO THE NORTH,CATTLE GRAZING,AND WINDMILLS. Threat: THREATENED BY DISTURBANCE FROM GRAZING CATTLE. General: >75 ADULTS OBSERVED IN JUN 2002;UNKNOWN IF CRLF SUCCESSFULLY BREED AT THIS SITE. Owner/Manager:ALA COUNTY-WASTE MGMT Commercial Version--Dated May 01,2010--Biogeographic Data Branch Page 51 Report Printed on Thursday,July 01,2010 Information Expires 11/01/2010