EPA Sabine ODMDS

Sabine-Neches Ocean Dredged Material Disposal Site (ODMDS) 2013 Status and Trend Assessment Survey, Texas: Benthic Macroinvertebrate Assessment

The U.S. Environmental Protection Agency Region 6 (EPA) is responsible for the management of Ocean Dredged Material Disposal Sites (ODMDS) in the Northern Gulf of Mexico.  As a part of its management of ODMDSs, the EPA conducts routine (10 - 15 yrs) trend assessment surveys at the ODMDSs. A trend assessment survey was carried out in September 2013 for the four active Sabine-Neches ODMDS sites. Benthic characterization was previously conducted in June/July 1995 at the four Sabine-Neches ODMDS sites as part of the site designation process. The purpose of the survey was to collect data to assess performance and site conditions relative to disposal operations. One objective of the Status and Trends survey was the biological and physical characterization (sediment texture) of the benthos at the Sabine-Neches ODMDS and Reference sites. Barry A. Vittor & Associates, Inc. provided the macroinfaunal analyses for this project. Our responsibilities included the preparation of a Quality Assurance Project Plan (QAPP), benthic macroinfauna taxonomy, data analyses including multivariate statistical comparisons of benthic assemblages between the ODMDS and Reference sites as well as comparisons to data collected in previous studies, and report preparation.

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Relevant Tasks:

  • Development of a project specific QAPP

  • Benthic macroinfauna analysis

  • Statistical comparisons between sites and years

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& ASSOCIATES, INC.