Practices that are not specifically allowed, and that would adversely affect water quality or damage wildlife habitat, are prohibited within /WP areas. Prohibited practices include the following:
(1) Storage of chemical herbicides, pesticides or fertilizers or other hazardous or toxic materials.
(2) Depositing, dumping, piling or disposal of refuse, or dumping, piling, disposing or composting of yard debris, fill, or other material except for single family residential composting, which must be kept at least 10 feet from the top of the bank of any water feature, and soils or soil amendments used for replanting in accordance with provisions of this section.
(3) Construction of new septic drainfields.
(4) Channelizing or straightening natural drainageways.
(5) For areas not on the city’s acknowledged Goal 5 inventory, removal or destruction of rare, threatened or endangered plant species, unless a conservation plan for the affected species is submitted by the applicant and approved by the planning director, in conjunction with the Oregon Department of Agriculture and the U.S. Fish and Wildlife Service.
(6) Filling, grading, excavating, and the application of chemical herbicides, pesticides and fertilizers are prohibited unless they:
(a) Are directly related to a use permitted in the waterside protection area,
(b) Address an imminent threat to public health and safety, or
(c) Result in enhancement of water quality, and enhancement or maintenance of stormwater conveyance capacity, flood control capacity, groundwater discharge and recharge capacity and wildlife habitat.