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Environmental Assessment St. Charles Parish Magnolia Ridge Pump Station HMGP-DR-4080-LA Project #3.

On August 29, 2012, Hurricane Isaac made landfall in the State of Louisiana as a Category 1 storm, causing high winds, extensive storm surge, and inland flooding over southern Mississippi and southeastern Louisiana, which received greater than 20 inches of rain, producing both flash flooding and river flooding. Hurricane Isaac was declared a major disaster event, Federal Emergency Management Agency (FEMA) 4080, and Hazard Mitigation Grant Program (HMGP) funding was made available to affected areas.

Subsequently, St. Charles Parish submitted an HMGP application for funding to construct the Magnolia Ridge Pump Station, a 500 cubic feet per second (cfs) pump station that will be located in Boutte, Louisiana. The pump station will mitigate the risk of flooding of structures and streets during heavy rainfall and tidal surge events in the Magnolia Ridge watershed area which encompasses portions of Boutte and Paradis. During heavy rainfall and tidal surge events, this area experiences flooding of structures and streets. Currently, there are 231 residences, 41 businesses, 2 public buildings, and 25 school/hospital/church buildings within the AE Flood Zone watershed area, which encompasses parts of Boutte and Paradis, Louisiana. The proposed pump station will be located at the southernmost point in the watershed area in Boutte at coordinates 29.862917 Latitude and -90.409203 Longitude. The site of the proposed pump station is on land currently owned by St. Charles Parish. Site photographs are in Appendix A and location maps are in Appendix B.

This Environmental Assessment (EA) has been prepared in accordance with the National Environmental Policy Act (NEPA) of 1969, the President’s Council on Environmental Quality regulations to implement NEPA (40 Code of Federal Regulations (CFR) Parts 1500-1508), and FEMA’s regulations implementing NEPA (44 CFR Part 10). FEMA is required to consider potential environmental impacts before funding or approving actions and projects. The purpose of this EA is to analyze the potential environmental impacts of the proposed Magnolia Ridge Pump Station. FEMA will use the findings in this EA to determine whether to prepare an Environmental Impact Statement (EIS) or a Finding of No Significant Impact (FONSI).

This draft EA has been prepared to analyze the potential consequences to the natural and human environment associated with the Proposed Action, the No Action Alternative, and other potential alternatives per the National Environmental Policy Act (NEPA) (42 United States Code [USC] 55 parts 4321 et seq., 2000), the President’s Council on Environmental Quality (CEQ) implementing regulations (40 Code of Federal Regulations [CFR] 30 parts 1500 et seq., 2004), and 44 CFR Emergency Management and Assistance Ch. I Part 10.

SizePublication Date
Icon for file of type application/pdfNotice of Availability of the Draft Environmental Assessment for the Magnolia Ridge Pump Station Project, St. Charles Parish, Louisiana

Public Notice: Notice of Availability of the Draft Environmental Assessment for the Magnolia Ridge Pump Station Project, St. Charles Parish, Louisiana

HMGP DR-4080-LA Project #3

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Icon for file of type application/pdfDraft Environmental Assessment St. Charles Parish Magnolia Ridge Pump Station HMGP-DR-4080-LA Project #3.

Draft Environmental Assessment St. Charles Parish Magnolia Ridge Pump Station HMGP-DR-4080-LA Project #3. July 2016

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Icon for file of type application/pdfAppendix A: Site Photographs

Appendix A: Site Photographs

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Icon for file of type application/pdfAppendix B: Site Location Maps

Appendix B: Site Location Maps

2.16M
Icon for file of type application/pdfAppendix C: Support Documentation and Agency Consultation Letters (Permits and Web Results)

Appendix C: Support Documentation and Agency Consultation Letters (Permits and Web Results)

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Icon for file of type application/pdfAppendix D: Eight-Step Decision Document

Appendix D: Eight-Step Decision Document

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