Previous

  • IMG_3583 (FILEminimizer).JPG
  • Ecoparasites_CQ-19_a (FILEminimizer).JPG
  • DSCN1045 (FILEminimizer) (FILEminimizer).JPG
  • DSCN0995 (FILEminimizer) (FILEminimizer).JPG
  • DSCN0946 (FILEminimizer).JPG
  • DSCN0934 (FILEminimizer).JPG
  • DSCN0853 (FILEminimizer).JPG
  • DSCN0852 (FILEminimizer).JPG
  • DSCN0844 (FILEminimizer).JPG

Ocean Dredged Material Disposal Site Monitoring (ODMDS) – Coquille River ODMDS and Chetco River ODMDS, Oregon

The U.S. Environmental Protection Agency (EPA) and the U.S. Army Corps of Engineers (USACE), Portland District share management responsibilities of the ODMDSs located off the coast of Oregon.  As required for EPA final designation of the ODMDSs, Site Management and Monitoring Plans (SMMPs) were prepared as part of the designation documents.  The SMMPs require routine annual bathymetric surveys to be conducted as well as periodic reassessment of the use of the sites by important biological resources on a 7 to 9 year basis.

ANAMAR was contracted by USACE Portland District to perform ODMDS monitoring surveys at the Coquille River ODMDS and Chetco River ODMDS.  Tasks included:

  • Securing a vessel – researched and contracted a vessel with appropriate equipment, space, berthing, and experienced crew to perform survey.
  • Sediment Sampling and Analysis – collection of grab samples at designated stations using a Gray O’Hara modified box core within and outside the ODMDS.  Samples were analyzed by contracted laboratories and EPA Region 10 Manchester lab.
  • Benthic Sampling and Analysis – collection of benthic grab samples at designated stations using a Gray‐O’Hara modified box core within and outside the ODMDS.  The samples were filtered through a 0.5 mm sieve and the retained material was preserved.  The samples were sorted under microscope into polychaetes, mollusks, crustaceans, and miscellaneous.  The groups were identified to the lowest practical taxa and counted.  Species density, diversity, richness, and equitability within the ODMDS and outside the ODMDS was determined.
  • Epibenthic Invertebrate and Fish Monitoring - conducted two 10‐minute beam trawls within the ODMDS and two 10‐minute beam trawls outside the ODMDS.  Samples were sorted and individuals were identified to the lowest practical taxa and fish length was recorded.

Project deliverables included a field survey report, benthic and epifaunal report, and laboratory report.

 

©2006-2016 ANAMAR Environmental Consulting, Inc. | Web design & hosting provided by Blu Dove Designs

Gainesville, FL (352) 377-5770
Portland, OR (503) 220-1641
Fax: (352) 378-7620 • This email address is being protected from spambots. You need JavaScript enabled to view it.