Staff Report and WELO Ordinance - StopWaste.Org

Draft 10-13-10b. Turf shall not be specified on slopes of 4 to 1 or greater if the toe of the slopeis next to an impermeable surface (where 4 to 1 means 1 foot of vertical elevation change forevery 4 feet of horizontal length).4. Landscape Design Plan Submittal Requirements. The landscape design plan shalldemonstrate how it meets the requirements of sub-sections (D)(1) (plant selection andgrouping), (D)(2) (water features) if applicable, and (D)(3) (soil erosion and runoffmanagement) of this section, and shall be drawn on project base sheets at a scale thataccurately and clearly identifies and includes the following:a. Designation of hydrozones. Depict each hydrozone and its plant factor.Provide the square footage of each hydrozone and the total landscaped area that matchesthe square footage amounts in the hydrozone summary table required by subsection (B)(3) ofthis section;b. Designation and square footage of landscape areas or features meeting thischapter's definition of special landscape area if any;c. Landscape materials, trees, shrubs, ground cover, turf, and existingvegetation. Planting symbols shall be clearly drawn and plants labeled by botanical name,common name, container size, spacing and quantities of each group of plants indicated.Include the water requirement category of each plant material (very low (VL), low (L),moderate (M) or high (H)) as described in subsection (B)(4) (Plant Factors) of this section;d. Natural features, including, but not limited to, rock outcroppings and existingtrees. Include trunk circumference measured four and one-half feet above grade for existingtrees (see Tree Preservation in LMC Chapter 12.20 Article II);e. Soil management information (see subsection (C) (soil management plan) ofthis section;f. Context information including but not limited to property lines, adjacent streetname(s), existing and proposed buildings, structures, and retaining walls;f. Impermeable surface information including but not limited to streets, driveways,walkways, and other paved areas adjacent to or integrated with the landscape project;g. Pools, spas, ponds, and water features and the surface area in square feet ofall such features;h. Location of slopes greater than 25% (where 25% means one foot of verticalelevation change for every four feet of horizontal length);i. Location and description of any proposed rain harvesting or catchmentfacilities, bioswales, green waste recycling areas, and/or green roofs; andj. The statement, "I have complied with the criteria of Livermore Municipal CodeChapter 13.25 and have applied them for efficient use of water in the landscape design plan,"and the signature of a licensed architect or landscape architectE. Irrigation Design Plan. An irrigation design plan meeting the following conditions shall besubmitted as part of the landscape design documentation package.1. Purposes. The purpose of an irrigation design plan shall be to apply water in a waythat does not exceed the maximum applied water allowance, and that meets plant waterneeds while avoiding water waste such as overspray, runoff, and low head drainage.Irrigation systems shall be designed to achieve a minimum 0.71 irrigation efficiency.2. For design review the irrigation design plan may be conceptual, consisting of awritten description and diagram depicting hydrozones and what types of irrigation equipment(drip, spray sprinklers, stream sprinklers, etc.) shall be used in each hydrozone, provided thatcompliance with all requirements is fully documented within approved construction plans1581