Accession Number : ADA186640

Title :   Clam Shell Dredging in Lakes Pontchartrain and Maurepas, Louisiana. Volume 1. Final Environmental Impact Statement and Appendixes.

Descriptive Note : Final rept.,

Corporate Author : ARMY ENGINEER DISTRICT NEW ORLEANS LA

Personal Author(s) : Chew, Dennis L

PDF Url : ADA186640

Report Date : Nov 1987

Pagination or Media Count : 447

Abstract : Clam shells (Rangia) have been harvested from Lakes Pontcahrtrain and Maurepas since 1933 by means of hydraulic dredges. The shells are used primarily in construction activities, but have a variety of other uses as well. There has been considerable controversy over the environmental impacts of shell dredging. This final Environmental Impact Statement assesses the impacts of shell dredging in the lakes as permitted under 5-year permits issued in 1982 that will expire in December 1987. The document also addresses the impacts of applications for 10-year permit extensions that would allow shell dredging to continue under the same conditions. These permits actions are being considered under Section 10 of the River and Harbor Act and Section 404 of the Clean Water Act. Numerous alternatives have been discussed and evaluated in the document. Keywords: Benthos; Contaminants; Cultural Resources; Economic Environment; Endangered Species; Fisheries; Grassbeds; Sediments; Social Impacts; Turbidity; Water Quality; Wildlife.

Descriptors :   *ENVIRONMENTAL IMPACT STATEMENTS, *DREDGING, BENTHONIC ZONES, CLAMS, SHELLS(STRUCTURAL FORMS), RESOURCES, ENDANGERED SPECIES, LAKES, SEDIMENTS, CONSTRUCTION, ECONOMICS, FISHERIES, LOUISIANA, ECONOMIC IMPACT

Subject Categories : Biological Oceanography
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE