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point that it will damage or kill turf. Leaf litter that is removed from turf shall either <br /> be chopped and used on-site, or transported to a plant debris recycling facility. <br /> All turf areas shall be cleanly edged to the inside (turfside) edge of any concrete <br /> or asphalt interface. All turf growing along public sidewalks and walkways shall be <br /> edged to maintain a crisp, clean edge along all such structures. Grass shall also be <br /> kept from overgrowing sprinkler heads. Edging shall also include trimming grass <br /> around trees, poles, utilities, and any other concrete pads within or immediately <br /> adjacent to the turf areas. Edging shall be done once per month during the <br /> months of November through March, and every two (2) weeks during the months <br /> of April through October. Edging shall be done by the use of power edgers or by <br /> hand. Soil sterilants or other herbicides shall not be used for edging. <br /> Care shall be taken to avoid damage by mowers to tree trunks, irrigation heads <br /> and any other utilities, facilities or structures within or adjacent to turf areas. Any <br /> damage caused by the Contractor's negligence shall be repaired at the <br /> Contractor's expense. Prior to mowing, the contractor shall insure that the mower is <br /> clean so that no roots, stolons, seeds or crowns of foreign grasses are introduced. <br /> All litter and debris in turf areas shall be picked up and disposed of properly. Litter <br /> and debris shall not be allowed to accumulate but shall be picked up and <br /> disposed of a minimum of once per week. The Contractor shall accomplish such <br /> litter and debris pickup prior to mowing to avoid shredding and dispersal of these <br /> materials. <br /> Turf fertilization shall be performed a minimum of twice per year with weed and <br /> feed, with the time to be determined with City staff. Fertilization shall be with a slow <br /> release, non-water-soluble, high nitrogen fertilizer as provided by the City. All <br /> excess chemicals shall be cleaned from benches, tables, BBQs, and pathways. <br /> Prior to lawn fertilization with granular-type fertilizers, the Contractor shall ensure <br /> that the root zone of the turfgrass is damp and that the grass itself is free of surface <br /> moisture. Lawns shall be watered immediately after fertilization to prevent burning <br /> the grass. <br /> Weed & feed, fertilization and aeration shall be done within 30 days of the City's <br /> request. <br /> Irrigation System Maintenance <br /> The City shall be responsible for all maintenance of the irrigation system including <br /> piping, wiring, spray heads, electric valves, and automatic controllers. The irrigation <br /> system shall be inspected by the Contractor on a bi-monthly basis during the <br /> irrigation period. Inspections shall be documented on format that will be provided <br /> by the City and provided to the City once completed. During these inspections <br /> the contractor shall adjust the water budget to ensure the amount of water being <br /> RFP 55027 CITYWIDE TURF MAINTENANCE Page 57 of 63 <br />