Reuse Of The Mare Island Dredged Material Disposal Ponds As A Confined Upland Dredged Material Disposal Facility Solano County

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Physical and Chemical Characterization of Dredged Material Influents and Effluents in Confined Land Disposal Areas

Ronald E. Hoeppel,Robert M. Engler,Tommy E. Myers
Physical and Chemical Characterization of Dredged Material Influents and Effluents in Confined Land Disposal Areas Book PDF

Author : Ronald E. Hoeppel,Robert M. Engler,Tommy E. Myers
Publisher : Unknown
Page : 326 pages
File Size : 51,6 Mb
Release : 1978
Category : Dredging
ISBN : UCR:31210024817858

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Physical and Chemical Characterization of Dredged Material Influents and Effluents in Confined Land Disposal Areas by Ronald E. Hoeppel,Robert M. Engler,Tommy E. Myers Pdf

Nine dredged material land containment areas, located at upland, lowland, and island sites, were monitored during hydraulic dredging operations in fresh- and brackish-water riverine, lake, and estuarine environments. Influent-effluent sampling at the diked disposal areas showed that, with proper retention of suspended solids, most chemical constituents could be removed to near or below background water levels. Most heavy metals, oil and grease, chlorinated pesticides, and PCB's were almost totally associated with solids in both the influent and effluent samples. The only chemical parameters which failed to show average decreases of less than 90 percent in total effluent samples include: titanium (89 percent), manganese (88 percent), potassium (78 percent), magnesium (64 percent), ammonium nitrogen (57 percent), mercury (46 percent), op DDE (46 percent), and pp DDE (21 percent). Effluent mercury and titanium frequently appeared to be mainly associated with

Management Plan for the Disposal of Contaminated Material in the Craney Island Dredged Material Management Area

Anonim
Management Plan for the Disposal of Contaminated Material in the Craney Island Dredged Material Management Area Book PDF

Author : Anonim
Publisher : Unknown
Page : 134 pages
File Size : 54,9 Mb
Release : 1993
Category : Dredging
ISBN : UCR:31210016534826

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Management Plan for the Disposal of Contaminated Material in the Craney Island Dredged Material Management Area by Anonim Pdf

The Craney Island Management Plan was developed to extend the life of the Craney Island Dredged Material Management Area (CIDMMA). The CIDMMA is used to dispose maintenance and new work dredged material from the project area. With current practice, CIDMMA would reach ultimate capacity by the year 2000. If, however, suitable material is barged to the sea and only contaminated material is placed in the facility (Restricted Use Program), then the life of the facility can be extended. Two tasks were addressed in this study: (a) determine service life under Restricted Use and (b) determine contaminant losses and conduct a Comprehensive Analysis of Migration Pathways (CAMP) expected to occur under Restricted Use. The results showed that the service life of the CIDMMA could be extended under Restrictive Use for approximately 140 years under baseline coniditions or 90 years under Worst Case conditions. The CAMP analysis was conducted along three major contaminant migration pathways (effluent, leachate, and volatile). Effluent was the most significant pathway for metal losses and volatilisation and for polynuclear aromatic hydrocarbon (PAH) losses. Leachate losses under a fully dewatered condition would not exceed effluent losses for some metals. PAH losses for a fully dewatered condition would not exceed effluent losses.