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Slipway and Jetty Cleaning and Maintenance

This activity is the ongoing maintenance (washing down, clearing mud, sediment, algal growth or similar) of a slipway or jetty.

Maintenance wastes can enter harbours from the cleaning of jetties and slipways. Debris and wastes produced could contain a mixture of contaminants including oils, oil emulsifiers, paints, solvents, detergents, bleach and antifouling paint scrapings. The dilution of wastes in the harbour waters means that in most cases any possible adverse effects will be only localised and temporary. However, there may be a problem where wastes are washed into enclosed waters, such as docks, or areas with low tidal flushing. 

Potential impacts from this activity include the following: