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  • PHASE I ENVIRONMENTAL SITE ASSESSMENT

    HUNTINGTON BEACH WETLANDS ORANGE COUNTY, CALIFORNIA

    Prepared for:

    Moffatt & Nichol 250 W. Wardlow Road

    Long Beach, California 90807

    Huntington Beach

    Wetlands Conservancy P.O. Box 5903

    Huntington Beach, California 92615

    Prepared by:

    GeoSyntec Consultants

    2100 Main Street, Suite 150 Huntington Beach, California 92648

    (714) 969-0800 www.geosyntec.com

    25 August 2004

  • GeoSyntec Consultants

    HG0858\Phase I\HBW04-01-Toc.doc i 04 08 24/11:51

    TABLE OF CONTENTS

    Page 1. INTRODUCTION ................................................................................................ 1

    1.1 Terms of Reference................................................................................... 1 1.2 Scope of Work .......................................................................................... 1 1.3 Report Organization ................................................................................. 2

    2. SITE DESCRIPTION........................................................................................... 4

    2.1 Site Location............................................................................................. 4 2.2 Site Characteristics ................................................................................... 4 2.3 Surrounding Land Uses ............................................................................ 5

    3. GEOLOGY AND HYDROGEOLOGY............................................................... 6 4. SITE HISTORY.................................................................................................... 8 5. RECORDS REVIEW ........................................................................................... 9

    5.1 General...................................................................................................... 9 5.2 Database Search Report............................................................................ 9 5.3 Historical Records .................................................................................. 12 5.4 Agency File Reviews.............................................................................. 14 5.3 City of Huntington Beach Fire Department Records Review ................ 15

    6. SUMMARY OF SITE RECONNAISSANCE ................................................... 16

    6.1 General.................................................................................................... 16 6.2 Use of Hazardous Substances................................................................. 16 6.3 Hazardous Substance Containers............................................................ 16 6.4 Storage Tanks ......................................................................................... 17 6.5 Polychlorinated Biphenyls (PCBs) ......................................................... 17 6.6 Pesticides ................................................................................................ 17 6.7 Solid Waste............................................................................................. 17 6.8 Drainages ................................................................................................ 18 6.9 Wetlands ................................................................................................. 18

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    TABLE OF CONTENTS (continued)

    Page

    HG0858\Phase I\HBW04-01-Toc.doc ii 04 08 24/11:51

    6.10 Wells ....................................................................................................... 19 6.11 Lead and Asbestos-Containing Materials............................................... 19 6.12 Radon...................................................................................................... 19 6.13 Observation of Off-Site Properties ......................................................... 19 6.14 Septic Tanks............................................................................................ 20

    7. SUMMARY OF FINDINGS.............................................................................. 21 8. CONCLUSIONS AND RECOMMENDATIONS ............................................. 22 9. SIGNATURE...................................................................................................... 23 REFERENCES ............................................................................................................... 24 TABLES

    5-1 Evaluation of Facilities Identified in Database Search

    FIGURES 2-1 Site Location 2-2 Site Plan 6-1 Identified Site Features APPENDICES

    A Select Aerial Photographs B California Division of Oil, Gas, and Geothermal Resources West Newport

    Oil Field C EDR Database Search Report D Site Photographs

  • GeoSyntec Consultants

    HG0858-01/HBW04-01.RPT.DOC 1 04 08 24/11:43

    1. INTRODUCTION

    1.1 Terms of Reference This report documents the Phase I Environmental Site Assessment (ESA)

    performed by GeoSyntec Consultants (GeoSyntec) for the proposed Huntington Beach Wetlands restoration property located in the City of Huntington Beach, County of Orange, California (the Site). The ESA was performed by GeoSyntec for the sole use of its clients, the Huntington Beach Wetlands Conservancy (HBWC) and Moffat & Nichol, for the purposes of establishing an approximate assessment of environmental conditions at the Site. This report was prepared Ms. Lauren Dage and Mr. Michael Reardon, P.E. and has been reviewed by Dr. Bertrand Palmer, P.E., all of GeoSyntec.

    1.2 Scope of Work This ESA was prepared in accordance with the scope of work described in

    Task 6 of Moffat & Nichols proposal. This proposal incorporated by reference the ASTM Standard E 1527-00, Standard Practice for Environmental Assessments: Phase I Environmental Site Assessment Process. Specifically, the scope of work for this ESA included the following:

    Records and Database search; Regulatory Agency and City of Huntington Beach Fire Department file

    reviews; Aerial photograph reviews; and Site reconnaissance. A previous Phase I ESA was performed for a portion of the Site in 2003

    [Miller Brooks, 2003]. As relevant, findings and related information from the previous Phase I have been incorporated in this report by reference.

    This ESA is not, nor should it be construed as, a regulatory compliance

    audit. The conclusions contained in this ESA are based solely upon analysis of the

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    conditions as observed by GeoSyntec personnel and as reported by regulatory agencies and other named sources at the time at which the ESA was performed.

    If actual conditions are found to differ from those described in this report, or

    if new information regarding the Site is obtained, GeoSyntec should be notified and additional recommendations, if required, will be provided. GeoSyntec is not liable for any use of the information contained in this report by persons other than the HBWC or Moffat & Nichol. GeoSyntec is not liable for the use of information in this report for any purposes other than referenced in this report without the expressed, written consent of GeoSyntec.

    1.3 Report Organization The remainder of this report is organized into the following sections; Section 2, Site Description, provides details of the Site location,

    characteristics, and surrounding land use, Section 3, Geology and Hydrogeology, provides background

    information on the regional geology and hydrology, Section 4, Site History presents a brief history of Site and

    surrounding property development and use, Section 5, Records Review presents the results of environmental

    database searches, regulatory agency files reviews and a review of historical aerial photographs,

    Section 6, Summary of Site Reconnaissance, presents a summary

    of Site conditions observed during a Site inspection, Section 7, Summary of Findings, presents a summary of the

    findings of the Phase I ESA for the Site,

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    Section 8, Conclusions and Recommendations, presents conclusions and recommendations based upon the findings of the Phase I ESA for the Site, and

    Section 9, Signature, presents a signature page for the Phase I

    ESA.

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    2. SITE DESCRIPTION

    2.1 Site Location The Site is an irregular shaped parcel located along Pacific Coast Highway

    in the City of Huntington Beach, County of Orange, California (Figure 2-1). The Site is bounded to the north by the Huntington Beach Channel and residential, commercial, and industrial properties, to the east by the levee for the Santa Ana River, and to the west by Beach Boulevard (Figure 2-2).

    2.2 Site Characteristics The Site encompasses approximately 180 acres of restored and degraded

    saltmarsh, seasonal wetlands and coastal dune habitat. As shown on Figure 2-2, the Site includes four sections, the Talbert Inlet/Outlet and Talbert Marsh, the Brookhurst Marsh, the Magnolia Marsh and the Newland Marsh. Each of these marsh areas are hydraulically connected via the Huntington Beach Channel constructed partially with sheet pile. The Talbert Channel joins the Huntington Beach Channel at the northeastern corner of the Site.

    The Site is located within the USGS Newport Beach Quadrangle map dated

    1952, photo revised 1967. The Site is relatively flat, with elevations ranging from appr

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