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to be prohibitive when it has any conflicting impact. Examples of 

 estuarine uses and activities generally having prohibitive impacts 

 are navigation dredging, other dredging and filling, solid waste 

 disposal, construction of bridges, dikes, jetties, and other 

 structures, shoreline development, mining from the estuarine bottom, 

 and flow regulation. 



Some estuarine uses may restrict estuarine use for other purposes but 

 do not automatically exclude other uses. These are those activities 

 which do not require a permanent modification of the estuarine 

 system; they generally include those uses directly involved with the 

 estuarine waters and other renewable resources. 



Restrictive impacts may involve damage to water quality, living 

 organisms, or aesthetic quality; such impacts may also result from 

 the exclusive appropriation of space. The key feature of uses 

 which cause restrictive impacts is that they may, with proper 

 management, be carried out simultaneously with other uses. 



Any kind of municipal or industrial waste discharge may have a 

 restrictive impact and often does. Commercial fishing, recreation, 

 and water supply are the major uses restricted by pollution from 

 liquid waste discharges. 



Some kinds of commercial fishing require the use of trawls or the 

 setting of traps or nets that must be left for some time. The use 

 of such devices restricts other uses while the devices are in place, 



