The purpose of the EN zone is to provide for preservation and protection of significant fish and wildlife habitats and other areas which make an essential contribution to estuarine productivity or fulfill scientific, research or educational needs.
(Ord. 73E § 2.070(part), 1992)
The EN zone includes all estuarine waters, intertidal areas, tidal wetlands and submerged and submersible lands up to the line of non-aquatic vegetation or the mean higher high water line, whichever is most landward.
(Ord. 73E § 2.070(1), 1992)
In the EN zone, the following uses are permitted subject to the provisions of Chapters 9.44, 9.48 and 9. 52 where applicable:
A. 
Undeveloped low intensity water dependent recreation, and snag removal in conjunction with water dependent recreation;
B. 
Research and educational observation;
C. 
Navigation aids, such as beacons or buoys;
D. 
Protection of habitat, nutrient, fish, wildlife and aesthetic resources;
E. 
Vegetative shoreline stabilization;
F. 
Passive restoration measures.
(Ord. 73E § 2.070(2), 1992)
In the EN zone, the following uses may be permitted subject to the provisions of Chapters 9.44, 9.48, 9.52 and 9.72 where applicable:
A. 
On-site maintenance and repair of existing structures or facilities which involves dredging, fill, riprap, piling installation or other estuarine alteration;
B. 
Riprap to protect unique natural resources, historical and archaeological values, public facilities, and uses existing as of October 7, 1977;
C. 
Active restoration of fish and wildlife habitat or water quality and estuarine enhancement;
D. 
Pipelines, cables and utility crossings;
E. 
Temporary alterations;
F. 
Bridge crossing support structures.
(Ord. 73E § 2.070(3), 1992)