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6. The Contractor shall supply water for the chemical mix. No reclaimed water may be utili zed. Well water from City Parks is encouraged for use for spraying a t no extra cost. (Washington Manor, San Leandro Ball Park, Thrasher, Cherry Grove, and Halcyon Parks) 7. The materials used by the Contractor must be of such composition and of sufficient strength to kill weeds, but may not sterilize the soi l for a period in excess of one year following application. The chemica ls used shall not be toxic or harmful in any manner to anima ls or human beings when used in prescribed manner. The materials used shall not harm desirable vegetation such as trees or turf. The materials used shall not be flammable or leave an oily residue that will discolor or leave a slippery film on sidewalks and curbs. The City may at any time during the spraying operation take samples to check materials being used. Upon request, the Contractor shall provide the City with information regarding chemicals applied to specified locations. In addition, the Contractor shall upon request provide the City with specimen labels of chemicals applied. In the event the treatment is not effective, the contractor will be required to remove all growth from the area within the limits of the spray application. Material The Contractor shall supply all new and replacement material for all new construction or replacements necessary as per City Standard Construction Drawings. All replacements, whether due to disease, pest infestation or Contractor negligence shall be Contractor responsibi lity and considered part of the bid item without separate payment made therefore . Fertilizers shall conform to t he Ca lifornia Food and Agricultural Code. Commercial fertilizers shall be complete fertilizers furnishing the required percentages of nitrogen, phosphoric acid, potash, and other necessary micronutrients as needed to keep turf, trees, and shrubs in a healthy and vigorous growing condition. Pest Management All landscaped areas shall be maintained free of disease and harmful insects without compensation beyond the base bid. The City o f San Leandro seeks to control pests without harming non-target organisms, or negatively affecting air and water quality and public health. The Contractor shall give preference to reasonably available non-pesticide alternatives when conducting pest management activities on City property and public right-of-ways. Chemical controls should only be applied when monitoring indicat es that preventative and non-chemical methods are not keeping pests below acceptable levels. When pesticides are required, the least toxic and the least persistent pesticide that will provide adequate pest control is applied. Pesticides should not be applied on a p reschedu led basis . RFP 55027 C ITYWIDE TURF MAINTENANCE Page 60 of 63