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Stormwater Pollution Prevention Plan Wastebeds 1-8 Integrated IRM- April 2012

Wastebeds 1-8 are located in the Town of Geddes, Onondaga County, New York, and are the subject of a Remedial Investigation and Feasibility Study. The Integrated IRM represents a significant ecological enhancement project that will improve the quality of the Onondaga Lake watershed by improving the quality of stormwater runoff from the Site. Key elements proposed include:

  • placement of clean material and establishment of native vegetation over a portion of the Site to stabilize the substrate and improve the ecological values and services provided by both existing and proposed Site upland and wetland habitat.
  • installation of groundwater and seep collection facilities that will route impacted water to treatment facilities prior to discharge to Onondaga Lake. Seep collection facilities will also contribute to slope stabilization.
  • use of structural and bioengineered facilities to stabilize portions of the Site that are historically subject to erosion.
  • restoration of Middle Ditch A including removal of accumulated sediment and precipitate.
  • installation of permanent stormwater management facilities.

This Stormwater Pollution Prevention Plan (SWPPP) was prepared since the Integrated IRM involves ecological enhancements that are expected to decrease stormwater runoff from the Site under developed conditions; no impervious surface area (i.e., buildings, pavement) is proposed. Construction activities for the Project will be conducted in accordance with the Design Drawings and Technical Specifications and the information included within this SWPPP.

The Design Drawings include information on the proposed location, details, and descriptions of erosion and sediment control facilities to be installed to control erosion and minimize sedimentation. In addition to standard erosion and sediment control facilities, such as silt fence and stone check dams, the design includes approximately 280,000 square feet (sf) (6.5 acres) of construction path stabilization on the proposed access paths and 200,000 sf (4.6 acres) of slope protection via the proposed seep aprons.

Erosion and sediment control facilities will be installed and maintained at the Site for the duration of the Project until these areas are stabilized. The permanent stormwater management facilities will be maintained in place after construction is complete.

Stormwater Pollution Prevention Plan Wastebeds 1-8 Integrated IRM- April 2012

Part I, Report and Attachments 1-2 (PDF) (28 pages, 2.3 mB) Part II, Attachments 3-7 (PDF) (62 pages, 4.1 mB)

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