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Construction Stormwater General Permit Stormwater ... · PDF fileConstruction Stormwater General Permit Stormwater Pollution Prevention Plan ... SWPPP Stormwater Pollution Prevention

Jul 29, 2018

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  • Construction Stormwater General Permit

    Stormwater Pollution Prevention Plan (SWPPP)

    for Port of Tacoma Replacement of Railway and Special Trackwork

    at Various Locations

    Prepared for: The Washington State Department of Ecology

    Northwest Regional Office

    Permittee / Owner Developer OperatorPort of Tacoma TBD Port of Tacoma

    Project Site Location Tacoma, Washington

    Certified Erosion and Sediment Control Lead (CESCL) Name Organization Contact Phone NumberTBD TBD TBD

    SWPPP Prepared By Name Organization Contact Phone Number

    Steve Kingsley KPFF Consulting Engineers 253-396-0150

    SWPPP Preparation Date March 1, 2017

    Project Construction DatesActivity / Phase Start Date End Date

    Construction April 2017 December 2017

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    Table of Contents 1 Project Information .............................................................................................................. 4

    1.1 Existing Conditions ...................................................................................................... 4 1.2 Proposed Construction Activities .................................................................................. 4

    2 Construction Stormwater Best Management Practices (BMPs) ........................................... 6 2.1 The 13 Elements .......................................................................................................... 6

    2.1.1 Element 1: Preserve Vegetation / Mark Clearing Limits ........................................ 6 2.1.2 Element 2: Establish Construction Access ............................................................ 7 2.1.3 Element 3: Control Flow Rates ............................................................................. 8 2.1.4 Element 4: Install Sediment Controls .................................................................... 9 2.1.5 Element 5: Stabilize Soils ....................................................................................10 2.1.6 Element 6: Protect Slopes....................................................................................11 2.1.7 Element 7: Protect Drain Inlets ............................................................................12 2.1.8 Element 8: Stabilize Channels and Outlets ..........................................................13 2.1.9 Element 9: Control Pollutants ...............................................................................14 2.1.10 Element 10: Control Dewatering ..........................................................................17 2.1.11 Element 11: Maintain BMPs .................................................................................18 2.1.12 Element 12: Manage the Project ..........................................................................19 2.1.13 Element 13: Protect Low Impact Development (LID) BMPs .................................21

    3 Pollution Prevention Team .................................................................................................22 4 Monitoring and Sampling Requirements ............................................................................23

    4.1 Site Inspection ............................................................................................................23 4.2 Stormwater Quality Sampling ......................................................................................23

    4.2.1 Turbidity Sampling ...............................................................................................23 4.2.2 pH Sampling ........................................................................................................25

    5 Discharges to 303(d) or Total Maximum Daily Load (TMDL) Waterbodies .........................26 5.1 303(d) Listed Waterbodies ..........................................................................................26 5.2 TMDL Waterbodies .....................................................................................................26

    6 Reporting and Record Keeping ..........................................................................................27 6.1 Record Keeping ..........................................................................................................27

    6.1.1 Site Log Book ......................................................................................................27 6.1.2 Records Retention ...............................................................................................27 6.1.3 Updating the SWPPP ...........................................................................................27

    6.2 Reporting ....................................................................................................................27 6.2.1 Discharge Monitoring Reports ..............................................................................27

  • P a g e | 2

    6.2.2 Notification of Noncompliance ..............................................................................28 List of Tables Table 2 Pollutants ..................................................................................................................14Table 3 pH-Modifying Sources ...............................................................................................15Table 5 Management .............................................................................................................19Table 6 BMP Implementation Schedule .................................................................................20Table 7 Team Information ......................................................................................................22Table 8 Turbidity Sampling Method ........................................................................................23Table 9 pH Sampling Method .................................................................................................25

    List of Appendices Appendix/Glossary

    A. Site MapB. BMP C. Site Inspection FormD. Construction Stormwater General Permit (CSWGP)E. 303(d) List Waterbodies / TMDL Waterbodies InformationF. Engineering Calculations

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    List of Acronyms and Abbreviations

    Acronym / Abbreviation Explanation

    303(d) Section of the Clean Water Act pertaining to Impaired WaterbodiesBFO Bellingham Field Office of the Department of EcologyBMP(s) Best Management Practice(s)CESCL Certified Erosion and Sediment Control LeadCO2 Carbon DioxideCRO Central Regional Office of the Department of EcologyCSWGP Construction Stormwater General PermitCWA Clean Water ActDMR Discharge Monitoring ReportDO Dissolved OxygenEcology Washington State Department of EcologyEPA United States Environmental Protection AgencyERO Eastern Regional Office of the Department of EcologyERTS Environmental Report Tracking SystemESC Erosion and Sediment ControlGULD General Use Level DesignationNPDES National Pollutant Discharge Elimination SystemNTU Nephelometric Turbidity UnitsNWRO Northwest Regional Office of the Department of EcologypH Power of HydrogenRCW Revised Code of WashingtonSPCC Spill Prevention, Control, and Countermeasuresu Standard UnitsSWMMEW Stormwater Management Manual for Eastern WashingtonSWMMWW Stormwater Management Manual for Western WashingtonSWPPP Stormwater Pollution Prevention PlanTESC Temporary Erosion and Sediment ControlSWRO Southwest Regional Office of the Department of EcologyTMDL Total Maximum Daily LoadVFO Vancouver Field Office of the Department of EcologyWAC Washington Administrative CodeWSDOT Washington Department of TransportationWWHM Western Washington Hydrology Model

  • P a g e | 4

    1 Project Information Project/Site Name: Port of Tacoma Replacement of Railway and

    Special Trackwork at Various LocationsStreet/Location: 1 Sitcum PlazaCity: Tacoma State: WA Zip code: 98401Subdivision: N/AReceiving waterbody: Blair Waterway (Puget Sound)

    1.1 Existing ConditionsTotal acreage (including support activities such as off-site equipment staging yards, material storage areas, borrow areas).Total acreage: 1.33

    Disturbed acreage: 1.33Existing structures: N/ALandscape

    Topography:N/A

    Drainage patterns: Project site slopes range from 0%-2% Existing Vegetation: There is no existing vegetation.Critical Areas (wetlands, streams, high erosion

    risk, steep or difficult to stabilize slopes):Project is mapped Zone C on the Flood

    Insurance Rate Map (minimal flooding)List of known impairments for 303(d) listed or Total Maximum Daily Load (TMDL) for the receiving waterbody: The project sites eventually discharge to the Blair Waterway, which has the following impairments: Benzene and sediment bioassay. See Appendix E.

    All removed soil and ballast material shall be stockpiled within contractor laydown area for testing prior to removal per the specifications. No soils are to be resused onsite, but are anticipated to be exported to appropriate off-site facilities after a completed soil profile has been performed by Port resources.

    Proposed Construction Activities Description of Site Development The Project is intended to perform railway track and special trackwork replacements required to maintain capacity and longevity of the Port of Tacomas (The Ports) rail system operated by the Port and Tacoma Rail (TR). The project site is comprised of 5 existing rail yard locations supporting both the Port and TR operations. At each of the 5 areas, various railway and special trackwork components will be replaced as part of ongoing maintenance within the Port, for a total of 1.33 acres of disturbed area. Within these areas, asphalt grade crossings will be replaced as necessary for installation of replaced track and special trackwork. Upon completion of the proposed project, site

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