(1) Maintenance of existing, lawfully established areas of crop vegetation, landscaping (including paths and trails) or gardens within a regulated critical area or its buffer. Examples include harvesting or changing crops, mowing lawns, weeding, harvesting and replanting of garden crops, pruning, and planting of noninvasive ornamental vegetation or indigenous native species to maintain the general condition and extent of such areas. Cutting down trees and shrubs within a buffer is not covered under this provision. Excavation, filling, and construction of new landscaping features, such as concrete work, berms and walls, are not covered in this provision and are subject to review;

(2) Minor maintenance and/or repair of lawfully established structures that do not involve additional construction, earthwork or clearing. Examples include painting, trim or facing replacement, reroofing, etc. Construction or replacement of structural elements is not covered in this provision, but may be covered under an exemption. Cleaning canals, ditches, drains, wasteways, etc., without expanding their original configuration is not considered additional earthwork, as long as the cleared materials are placed outside the stream corridor, wetlands, and buffers;

(3) Low impact activities such as hiking, canoeing, viewing, nature study, photography, hunting, fishing, education or scientific research;

(4) Creation of unimproved private trails that do not cross streams or wetlands that are less than two feet wide and do not involve placement of fill or grubbing of vegetation;

(5) Planting of native vegetation;

(6) Noxious weed control outside vegetative buffers identified in Section 16.06.160, except for area wide vegetation removal/grubbing;

(7) Noxious weed control within vegetative buffers, if the criteria listed below are met. Control methods not meeting these criteria may still apply for a restoration exemption, or other authorization as applicable: