Biological Resources Assessment Report

Biological Resources Assessment Report

for the Mt. Lee Pumping Station and Pipe Line Project

Griffith Park City of Los Angeles, California

Prepared for: City of Los Angeles Department of Public Works

Bureau of Engineering Environmental Management Group (EMG)

1149 S. Broadway, 6th Floor Los Angeles, CA 90015-2213

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Biological Resources Assessment Report for the

Mt. Lee Pumping Station and Pipe Line Project Griffith Park

City of Los Angeles, California

Prepared for: City of Los Angeles Department of Public Works

Bureau of Engineering Environmental Management Group (EMG)

1149 S. Broadway, 6th Floor Los Angeles, CA 90015-2213 Contact: James R. Tebbetts

Prepared by: AECOM

515 S. Flower Street, 8th Floor Los Angeles, CA 90071 Contact: Arthur Popp June 12, 2015

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TABLE OF CONTENTS

1.0 INTRODUCTION...........................................................................................................1

1.1 PROJECT DESCRIPTION .............................................................................................1 1.2 FIELD SURVEYS .........................................................................................................2

2.0 EXISTING CONDITIONS ............................................................................................7

2.1 SETTING .....................................................................................................................7 2.2 VEGETATIVE COMMUNITIES AND COVER TYPES .......................................................7 2.3 WILDLIFE SPECIES.....................................................................................................9 2.4 WILDLIFE MOVEMENT CORRIDOR .............................................................................9

3.0 SPECIAL-STATUS BIOLOGICAL RESOURCES ....................................................13

3.1 SPECIAL-STATUS PLANTS ..........................................................................................14 3.2 SPECIAL-STATUS WILDLIFE .......................................................................................20 3.3 SENSITIVE NATURAL COMMUNITIES...........................................................................31

4.0 APPLICABLE REGULATIONS ...................................................................................32

4.1 FEDERAL REGULATIONS AND STANDARDS ................................................................33 4.2 STATE REGULATIONS AND STANDARDS ....................................................................34 4.3 LOCAL REGULATIONS AND STANDARDS ....................................................................34

5.0 IMPACTS ON BIOLOGICAL RESOURCES .............................................................35

5.1 VEGETATION ...............................................................................................................35 5.2 WILDLIFE ....................................................................................................................37 5.3 WILDLIFE MOVEMENT CORRIDOR ..............................................................................39

6.0 AVOIDANCE, MINIMIZATION, AND BEST MANAGEMENT PRACTICE MEASURES AND RECOMMENDATIONS.......................................................41

6.1 ADDITIONAL SURVEYS AND STUDIES ........................................................................41 6.2 PRE-CONSTRUCTION SURVEYS ................................................................................41 6.3 PROJECT IMPACT AVOIDANCE, MINIMIZATION, AND BMP........................................43

7.0 CONCLUSIONS ............................................................................................................45

8.0 REFERENCES ..............................................................................................................47

Mt. Lee Pumping Station and Pipe Line Biological Resources Assessment Report

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