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Amend the exception to section 501.3.5.1 (5.3.5.1), Site Hardscape, as follows:
Exception: Section 501.3.5.1 (5.3.5.1) shall not apply to building projects in Climate Zones 6, 7, and 8. The code official may approve a percentage less than 50%, on a case-by-case basis, for portions of industrial type sites with limitations and/or having expansive amounts of paving needed for the intended use, (i.e., next to airport, aircraft affiliated, large truck or vehicle loading and/or maneuvering areas).
(Ord. 9-23, 3-7-2023)
Repeal section 501.3.8.1 (5.3.8.1), Building Site Waste Management Plan, and replace with the following:
501.3.8.1 (5.3.8.1) Building Site Waste Management Plan. A building site waste management plan shall be developed and implemented for excavated soil, rock, and land-clearing debris. Land-clearing debris includes trees, stumps, and vegetation. Diverted land-clearing debris and removed rock and soil shall not be sent to sites where development activity is prohibited by Section 501.3.1.2 (5.3.1.2).
Not less than 75% of the land-clearing debris, rock, and excavated soils, excluding invasive plant materials, shall be diverted from disposal in landfills and incinerators, other than waste-to-energy systems with an energy-recovery efficiency rate higher than 60%. Where it can be shown that diverting 75% of land-clearing debris, rock, and soils is not feasible, to the satisfaction of the code official, divert from the landfill to the maximum extent possible. Land-clearing debris calculations shall be based on either weight or volume but not both. Receipts or other documentation related to diversion shall be maintained through the course of construction, and when requested by the code official, evidence of such diversion shall be provided.
The plan shall address all of the following:
a. Land-clearing debris, rock, and soil to be diverted from disposal by composting, recycling, or reuse.
b. Waste materials that will be diverted on-site.
c. The locations to which waste materials will be diverted off-site.
d. Soils to be stockpiled for future use at any location.
e. Woody waste to be used as fuel.
f. The destruction and disposal of invasive plant materials.
g. The methods of removal and location of treatment and/or disposal of any contaminated soils.
h. The treatment of vegetation to comply with the rules of government-designated quarantine zones for invasive insect species.
(Ord. 9-23, 3-7-2023)
601.1.1 Alternate On-Site Sources of Water. Alternate On-Site Sources of Water can include rainwater/stormwater harvesting, air conditioner condensate, grey water from interior applications and treated as required, swimming pool filter backwash water, foundation drain water, industrial process water, and on-site wastewater treatment plant effluent. Plumbing for grey water systems from any fixture up to, but not including the exterior irrigation system tank shall be inspected by the Authority Having Jurisdiction. The Idaho Department of Environmental Quality (IDEQ) shall have jurisdiction to inspect and approve the installation of exterior irrigation system tank and all piping therefrom to the point of disposal in accordance IDAPA 58.1.03, "Individual/Subsurface Sewage Disposal Rules." Grey water system and design criteria requirements related to irrigation and leaching shall be determined in accordance with the requirements as established by the IDEQ. Where non-potable water is used for a water application, signage shall be provided in accordance with Chapter 16, Part 2, of the Idaho State Plumbing Code.
(Ord. 9-23, 3-7-2023)
601.1.2 Reclaimed Water. The design of any reclaimed water and/or reuse system must be permitted and approved by the Idaho Department of Environmental Quality (IDEQ) in accordance with IDAPA 58.01.17, "Recycled Water Rules." All planning, design, and operation of any reuse facilities shall be under the authority of IDEQ. All piping associated with the collection and distribution of these systems shall be inspected by the Authority Having Jurisdiction in accordance with the Idaho State Plumbing Code. Where non-potable water is used for a water application, signage shall be provided in accordance with Chapter 16, Part 2, of the Idaho State Plumbing Code.
(Ord. 9-23, 3-7-2023)
601.3.1.1 (6.3.1.1) Landscape Design. A minimum of 60% of the area of the improved landscape shall be in biodiverse planting of native plants, adaptive plants, low water use vegetation, and/or rainfall-ETc compatible plants. Consultation on acceptable plant materials can occur with the Boise City Planning Division.
Exceptions:
1. The area of dedicated athletic fields, recreational fields, parks, golf courses, driving ranges, areas dedicated for production of food for human consumption, and similar, at the discretion of the code official, shall be excluded from the calculation of the improved landscape for uses such as schools, outdoor sports facilities, residential common areas, parks, or public recreational facilities.
2. Landscape areas irrigated solely with alternate on-site sources of water shall be exempt from these requirements.
3. Where the average annual rainfall is less than 12 inches (300 mm), plants other than turfgrass, with an annual ETc of 15 inches (380 mm) or less, shall be deemed equivalent to rainfall-ETc compatible plants.
(Ord. 9-23, 3-7-2023)
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