Evaluation of Wetland Creation with John F. Baldwin Ship Channel Sediment
Abstract
Construction and improvement of the John F. Baldwin Ship Channel require the dredging and removal of sediment from the West Richmond reach, the Pinole Shoal reach, and the Carquinez Strait. Sediments were sampled and tested to determine the physical and chemical characteristics. Little sediment contamination was found except for elevated levels of polycyclic aromatic hydrocarbons (PAHs) in the West Richmond reach and possible elevated levels of trace metals in Pinole Shoal and Carquinez Strait. The U.S. Army Engineer Research and Development Center evaluated the restoration of levees and wetland creation disposal alternatives. The plant bioassay test results indicated a potential for migration of plant tissue lead into foodwebs associated with the wetland sites. The wetland animal bioassay showed mixed results with plant and animal growth in the mesocosms. Low mussel tissue pesticide concentrations should not cause any concern for foodweb contamination in wetlands created with J.F. Baldwin Project sediments.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2000
- Accession Number
- ADA386004
Entities
People
- C. R. Led
- D. L. Brandon
- H. E. Tatem
- J. W. Simmers
- R. A. Price
Organizations
- Engineer Research and Development Center