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y. Contractor shall be responsible for periodic inspection <br />of surface drains located within the landscaped areas. <br />These drains shall be checked to assure proper <br />functioning. Remove any debris or vegetation that <br />might accumulate at the inlet and prevent proper flow <br />of water. <br />z. Any erosion damage because of Contractor's failure to <br />keep the surface drains clear shall be repaired at <br />Contractor's expense. <br />G. SANTA ANA REGIONAL TRANSPORATION CENTER (SARTC) <br />The Contractor shall provide complete landscape maintenance, including, <br />but not limited to, pruning, trimming, shaping and training of trees, shrubs, <br />and ground cover plants, removing and controlling weeds, controlling <br />plant diseases and pests; mowing turf, edging turf and ground cover, <br />irrigating plant material; maintaining and repairing irrigation systems and <br />removing organic waste material at the SARTC. <br />Contractor will perform the following special landscape maintenance at <br />the SARTC; <br />1) Perennial/Annual Color: All perennial/annual color beds shall be <br />maintained and planted/rotated three (3) times per years (first <br />week of January, May and September) detailed in "Annual Color <br />Planting and Maintenance Specification", below. <br />a. Before each annual planting the area should be tilled 8 to 16 <br />inches deep. Organic matter in the form of nitrified redwood <br />must be incorporated to a depth of 8" of the top soil. The <br />contract administrator may adjust this if adequate organic <br />matter is already present in the soil but Contractor must be <br />prepared to incorporate the organic matter at every color <br />rotation. Organic matter must comprise 25% of the soil <br />volume where the roots will be. This requires 2" of nitrified <br />redwood tiled to an 8" depth. Apply 1.5 pounds of nitrogen <br />per 100 sq. ft. as a complete low nitrogen material with <br />aeration of 1:2:1, 1:1:1, 1:2:2 or similar. Do not use a higher <br />rate of nitrogen as this may result in excessive vegetative <br />growth and a suppression of flowering. After establishment, <br />fertilize as necessary to maintain a robust appearance and <br />maximum flowering. After incorporating organic material and <br />other supplements, the beds must be raked smooth and <br />slightly mounded. Sticks, clods and other material must be <br />removed from the bed. During planting gently crush the root <br />mass with fingers to stimulate root growth in the surrounding <br />soil. Begin planting in the center of the bed and keep traffic in <br />the worked soil to a minimum. Make the hole slightly larger <br />than the root ball and set the plant at the same depth or <br />slightly higher than it was growing in the container. Smooth <br />25E-41