Pressure-Treated Wood Effect on Marina Environment

by James S. Graham, Natl Timber Piling Council, Rye, United States,

Document Type: Proceeding Paper

Part of: World Marina '91


Pressure treated Southern Pine and Douglas Fir are the most commonly used materials for marina construction in the United States. The preservatives currently used, creosote, chromated copper arsenate (CCA), and ammonical copper zinc arsenate (ACZA), are restricted use pesticides, and registered with the U.S. Environmental Protection Agency. The effect of these preservatives on marine life and subsurface ground water at marina sites is reviewed based on available research data. Included is a discussion on the leachability and migration characteristics of the preservatives. The conclusion advises engineers how to properly specify pressure-treated wood without disturbing marine life or contaminating the subsurface ground water.

Subject Headings: Wood preservatives | Groundwater | Groundwater pollution | Wood | Ports and harbors | Construction materials | Lifeline systems | Pesticides | United States

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