The city reserves the right to, and may at its option, require the separation of waste, require the deposit thereof in separate containers, and prescribe the method of disposal thereof. The city also reserves the right to issue further regulations for the placement and disposal of recyclable materials. Any contractor shall cooperate at all times with efforts to promote recycling of consumer products in the separation, transportation and deposit of identified recyclable materials. Any extra work caused by said handling of recyclable materials over and above the contract price, will be the subject of prior separate contractual negotiations between the city and the contractor. (Ord. 2089, 1-5-2010, eff. 1-5-2010)