6200 12TH DR SE 2020-10-22 - Laserfiche WebLink

with hand watering as needed. The following items are considered to be minor repairs: damaged or clogged sprinkler nozzles, adjustment of sprinkler patterns or arcs, adjustment of sprinkler position (reorient; raise, lower, or straighten sprinkler head), replacement of clogged, broken, or missing barbed-style drip emitters, replacement or repositioning of drip distribution tubing smaller than 1/2 inch or 15 mm diameter. Any replacement of irrigation system components shall be made with materials of the same manufacturer and model as the original equipment. • All repairs to the system shalt be identical to the original installation, unless approved otherwise in advance by the owner's authorized representative. If a change to the installation will result in lower future maintenance costs, less frequent breakage, or an increase in public safety, request authorization to make the change from the owner's authorized representative. • For safety, do not install sprinklers on risers above the ground level, even if the risers are flexible. Always use spring-operated,pop-up style, sprinkler heads. Sprinkler heads are available with pop-up heights up to 12 inches (30 cm) above ground level. If the existing sprinklers are mounted on above-ground risers, the replacements shall be pop-up type sprinklers. No exceptions. • Annually submit recommendations for changes to system that would improve water efficiency white meeting the plants' needs. Winterization • Completely drain the sprinkler system (blowout) to prevent freeze damage to underground pipes and sprinkler heads. Close all valves and shutdown the controller(s) for the winter. F. SPECIAL LANDSCAPE AREAS Street trees and R.O.W. plantings • These areas have additional stress of vehicular, pedestrian (and dog) traffic, and in this plan are not included in the irrigation system. To avoid compaction and prolong tree life, it is necessary to keep underplantings full and healthy. If low shrubs or groundcovers are damaged, replace them immediately to prevent further damage. Rain Gardens/Bioretention Areas • Swales and rain gardens, designed to capture and hold roof runoff, will not maintain optimal drainage rates if soils become compacted. Minimize foot traffic in this area, although occasional walking for maintenance is fine. • In addition to preventing weeds, regular applications of mulch will maximize the swale's ability to capture and break down contaminants. In order to prevent runoff