Stormwater Pollution Prevention Plan for the Construction ... STORMWATER POLLUTION PREVENTION PLAN FOR

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  • Stormwater Pollution

    Prevention Plan for the

    Construction of the

    Marble River Wind Farm

    Marble River Wind Farm Project

    Clinton County, New York

    Stormwater Pollution

    Prevention Plan for the

    Construction of the

    Marble River Wind Farm

    Marble River Wind Farm Project

    Clinton County, New York

    G 4

    1 4

    4 K

    Issued March 2008

    Amended July 2012

    Issued March 2008

    Amended July 2012

    Prepared for:

    52 James Street

    Albany, New York 12207

    Marble River, LLCMarble River, LLC

    Prepared by:

    77 Goodell Street

    Buffalo, New York 14203-1243

    URS Corporation - New YorkURS Corporation - New York

  • I:\11176310\SWPPP\Stormwater Pollution Prevention Plan – MR – Amended July 2012

    AMENDED

    STORMWATER POLLUTION PREVENTION PLAN

    FOR THE CONSTRUCTION OF THE

    MARBLE RIVER WIND FARM – ACCESS ROADS AND TOWER SITES

    FOR:

    SPDES GENERAL PERMIT FOR STORMWATER

    DISCHARGES FROM CONSTRUCTION ACTIVITY

    PERMIT GP-02-01

    PREPARED FOR:

    MARBLE RIVER, LLC

    52 JAMES STREET

    ALBANY, NEW YORK 12207

    PREPARED BY:

    URS CORPORATION

    77 GOODELL STREET

    BUFFALO, NEW YORK 14203

    ISSUED IN MARCH 2008

    AMENDED JULY 2012

  • I:\11176310\SWPPP\Stormwater Pollution Prevention Plan – MR – Amended July 2012

    TABLE OF CONTENTS

    Page No.

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

    2.0 SIGNATORY AND CERTIFICATION REQUIREMENTS ........................................ 4

    2.1 Contractor Certification .................................................................................... 4

    2.2 Variations from Technical Standards ................................................................ 5

    2.3 Notice of Intent ................................................................................................ 6

    2.4 Notice of Termination ....................................................................................... 6

    3.0 GENERAL PROJECT INFORMATION ...................................................................... 7

    3.1 Project Area ................................................................................................ 7

    3.2 Existing Site Conditions .................................................................................... 7

    3.3 Proposed Site Conditions/Construction Activities ............................................ 8

    4.0 CONSTRUCTION ACTIVITY

    SEQUENCING………………………………………………………… ...................... 14

    5.0 POLLUTION PREVENTION MEASURES.…………………………………………. 16

    5.1 Good Housekeeping…………………………………………………………… 16

    5.2 Fueling and Maintenance……………………………………………………… 17

    6.0 EROSION AND SEDIMENT CONTROL…………………………………………….. 18

    6.1 General ………………………………………………………………………… 18

    6.2 Wetland Protection……. ................................................................................ ... 18

    6.3 Excavation Dewatering………………………………………………………… 19

    6.4 Stockpiles and Windrows……………………………………………………… 19

    6.5 Diversion Berms ............................................................................................... 19

    6.6 Silt Fence……………………..……………………………………………… 20

    6.7 Vegetated Buffer Strips ................................................................................... 20

    6.8 Stabilized Construction Entrance………….…………………………………… 21

    6.9 Stone Check Dam………….…………………………………………………... 21

    6.10 Sediment Trap ................................................................................................... 21

    6.11 Culvert Outlet Protection ................................................................................. 22

    6.12 Collection System Installation in Environmentally Sensitive Areas ................ 22

    6.13 Temporary Access Crossing……….………………………………………….. 23

    6.14 Stone Bridge ……………………………………………………………….. 24

    6.15 Vegetation……………………………………………………………………… 24

    6.16 Mulching……………………………………………………………………….. 26

  • I:\11176310\SWPPP\Stormwater Pollution Prevention Plan – MR – Amended July 2012

    TABLE OF CONTENTS (Continued)

    Page No.

    7.0 WATER QUALITY AND QUANTITY CONTROL .................................................... 28

    7.1 Water Quality ................................................................................................ 28

    7.2 Water Quantity ................................................................................................ 28

    8.0 INSPECTION AND MAINTENANCE…………………………………………. ........ 30

    8.1 Inspection .......................................................................................................... 30

    8.2 Construction Phase Maintenance ...................................................................... 32

    8.3 Post-Construction Maintenance ........................................................................ 33

    APPENDICES

    Appendix A Figures and Tables

    Appendix B Existing Conditions Information

    Appendix C Contractor’s Certification Statement

    Appendix D Notice of Intent/Notice of Termination

    Appendix E Standard Inspection Forms

    Appendix F Culvert Sizing Calculations

    Appendix G Construction Drawings (BOUND SEPARATELY)

  • -1- I:\11176310\SWPPP\Stormwater Pollution Prevention Plan – MR – Amended July 2012

    1.0 INTRODUCTION

    Marble River, LLC (the Owner) is currently developing a wind-powered electric

    generating facility in the Towns of Clinton and Ellenburg, in Clinton County, New York. The

    project will consist of the following components which are to be located on private leased land:

    � 70 wind turbines.

    � 2 Permanent meteorological towers.

    � 4 Temporary meteorological towers.

    � 25.3-Miles of gravel access road.

    � 66-Miles of electrical collection cables to convey power from the turbines to an

    electrical substation.

    � An electrical substation and interconnect.

    � An operation and maintenance building.

    � A laydown yard.

    Each turbine will have a generating capacity of 3.0 megawatts (MW). Figure 1 in Appendix A

    illustrates the location of the Project, local road network, as well as the overall proposed project

    layout. It should be noted that in addition to the above referenced improvement on private

    property, improvements to local roads and intersections will be conducted to facilitate project

    construction.

    The original SWPPP and associated Notice of Intent (NOI) were submitted to the New

    York State Department of Environmental Conservation (NYSDEC) on April 16, 2008 for

    construction of the access roads and tower sites (the majority of the project). Separate SWPPPs

    and NOIs were also submitted in 2008 to the NYSDEC for construction of the electrical

    substation/interconnect and laydown yard.

    This SWPPP was initially developed under New York State Pollution Discharge

    Elimination System (SPDES) General Permit for Stormwater Discharges Associated with

    Construction Activity, GP-02-01. The original SWPPP and NOI were based on discussions and

    decisions made during the project kick-off meeting conducted on December 11, 2007 at the

    Marble River office in Ellenburg, New York. The original SWPPP was considered approved on

    July 9, 2008 after a 60 day period passed without receiving any comments from the NYSDEC.

  • -2- I:\11176310\SWPPP\Stormwater Pollution Prevention Plan – MR – Amended July 2012

    The NYSDEC assigned permit No. NYR10P542 to the SWPPP prepared for construction of

    access roads and tower sites.

    Subsequent to issuing the original SWPPP in 2008, a significant portion of the project

    was deleted and the number of turbines was reduced from 109 to 70. In addition, a

    constructability walkover was conducted in the fall of 2010 which resulted in modifications to the

    proposed approach to stormwater management techniques. Construction was initiated in 2010

    and the project is approximately 25 percent complete (construction has been largely suspended

    for the winter). As a result of the reduction in the project size, as well as modifications to the

    stormwater management techniques, Marble River determined that an amendment to the initial

    SWPPP was required. This amended SWPPP along with the SWPPP drawin