WAC 296-127-01346. Landscape construction

For the purposes of the Washington state public works law, chapter 39.12 RCW, landscape construction involves the beautification of a plot of land by changing its natural features through the addition or modification of lawns, trees, bushes, etc. (1) Landscape construction includes: • Constructing or maintaining lawns, yards, gardens or other landscaped surfaces. • Mixing and spreading mulches, ground covers, soil amendments, decorative bark or decorative rock. • Seeding, sodding or hydroseeding. • Applying chemicals or fertilizers. • Planting trees, shrubs or plants. • Installing, servicing or repairing above ground lawn or landscape sprinkler systems. • Installing, servicing or repairing underground lawn or landscape sprinkler systems to a maximum depth of three feet below finish grade. • Assembling or placing premanufactured trellis work, play equipment, benches or picnic tables. • Constructing rock walls to a maximum height of four feet. • Land clearing. • Spreading top soil to a maximum depth of six inches below finish grade. • Trenching to a maximum depth of three feet below finish grade. • Installing french drains or other subsurface water collection systems to a maximum depth of three feet below finish grade. • Hauling top soil, plants or other landscaping materials in trucks with only one rear axle. (2) Landscape construction does not include: • Any activity or task (including those mentioned above) when performed preparatory to any nonlandscaping construction work. • Constructing roads, footpaths, trails or rock walls more than four feet high. • Custom fabrication of trellis work, play equipment, benches or picnic tables. • Constructing restrooms, shelters or similar structures. • Installing sewer systems, storm sewer systems, catch basins, vaults or drainage systems for impervious surfaces (such as parking lots). • Installing drainage systems or underground sprinkler systems more than three feet below final grade. • Land clearing, dozing, grading, excavating or hauling except as permitted above. • Tree falling or bucking. • Subgrade preparation. • The use of power equipment with more than ninety horsepower. • The use of trucks with more than one rear axle except hydroseeders. • Demolition of structures. • Asphalt or concrete work except incidental anchorage for play equipment, benches or picnic tables. • Welding. • Installing agricultural irrigation systems. • Encapsulation of landfills.