10 - Laserfiche WebLink

M A S T E R P L A N F O R L W D P • Trees: • A survey and assessment report of existing trees, prepared by a certified arborist, shall be completed prior to final design and construction. Report should show each tree, by species, size, location and grade (at base of tree), along with description of health and condition. • Newly planted trees in lawn areas should be spaced at 10 feet on-center, minimum, to allow access for large mowers. • Lawn areas: • Maximum slope of 20%. • Lawn Zone Type One: Conventional Dwarf Tall Fescue, conventionally mowed and irrigated. • Lawn Zone Type`Iwo: Same (or different) species, mowed at higher height, watered less often, to the point of stress (but not so little as to kill the lawn). • Mulched-only areas: • Option One: Sheet mulch and/or decorative bark. • Option Two: Drought-tolerant groundcover, with potential for future conversion to mulched area. • Irrigation of all planting (including each tree), with a permanent automatic, water-conserving irrigation system that may be converted to a non-potable (recycled water) system. • Stormwater treatment measures that are designed by a variety of means, to slow, filter, and reduce the quantity of stormwater from the site, and prevent the direct flow of both stormwater and potable water from impervious areas into storm drains or creek. Includes, at least: • Setbacks and buffer areas, vegetated swales, and areas of retention, detention, or filtration between impervious areas and storm drains or creek. • Additional planting of trees on site. • Improvements to site soil quality (reduction of compaction, addition of organic material, etc.). • BMPs: Best Management Practices in design and construction. Includes restrictions on the use of noxious chemicals and materials in construction and maintenance, and low impact practices to reduce, slow, and filter storm water runoff. GUIDELINES 25