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A5.304.4.2 Reduce the use of potable water to a quantity that does not exceed 55 percent of ETo times the landscape area. A5.304.5 Potable water elimination. Provide a water efficient landscape irrigation design that eliminates the use of potable water beyond the initial requirements for plant installation and establishment. Methods used to accomplish the requirements of this section shall include, but not be limited to, the items listed in Section A5.304.4. A5.304.6 Restoration of areas disturbed by construction. Restore all areas disturbed during construction by planting with local native and /or noninvasive vegetation. A5.104.7 Previously developed sites. On previously developed or graded sites, restore or protect at least 50 percent of the site area with native and /or noninvasive vegetation. A5.304.8 Graywater irrigation system. Install graywater collection system for onsite subsurface irrigation using graywater. MATERIAL CONSERVATION & RESOURCE EFFICIENCY (at least one required) Efficient Framing Systems A5.404.1 Wood framing. Employ advanced wood framing techniques or OVE, as permitted by the enforcing agency. Material Sources A5.405.1 Regional materials. Select building materials or products for permanent installation on the project that have been harvested or manufactured in California or within 500 miles of the project site, meeting the criteria listed in Section A5.405.1. A5.405.2 Bio -based materials. Select bio -based building materials per Section A5.405.2.1 or A5.405.2.2. A5.405.2.1 Certified wood products. Certified wood is an important component of green building strategies and the California Building Standards Commission will continue to develop a standard through the next code cycle. A5.405.2.2 Rapidly renewable materials. Use materials made from plants harvested within a ten -year cycle for at least 2.5 percent of total materials value, based on estimated cost. A5.405.3 Reused materials. Use salvaged, refurbished, refinished or reused materials for at least 5 percent of the total value, based on estimated cost of materials on the project. A5.405.4.1 Recycled content. Use materials, equivalent in performance to virgin materials, with postconsumer or preconsumer recycled content value (RCV) for a minimum of 15 percent of the total value, based on estimated cost of materials on the project. Provide documentation as to the respective values. A5.405.5 Cement and concrete. Use cement and concrete made with recycled products and complying with the following sections: A5.405.5.1 Cement. Meet the following standards for cement: 1. Portland cement shall meet ASTM C 150. 2. Blended hydraulic cement shall meet ASTM C 595. A5.405.5.2 Concrete. Unless otherwise directed by the engineer, use concrete manufactured with cementitious materials in accordance with Sections A5.405.5.2.1 and A5.405.5.2.2, as approved by the enforcing agency. A5.405.5.2.1 Supplementary cementitious materials (SCMs). Use concrete made with one or more of the SCMs listed in Section A5.405.5.2.1. A5.405.5.2.1.1 Mix design equation. Use any combination of one or more SCM5, satisfying Equation A4.5 -1. Exception: Minimums for concrete products requiring high early strength may be lower as directed by the engineer. A5.405.5.3 Additional means of compliance. Any of the following measures may be employed for the production of cement or concrete, depending on their availability and suitability, in conjunction with Section A5.405.5.2. Note: This general informational handout is provided as a courtesy. Specific questions should be addressed to the project architect, contractor, other design professional, or by more detailed consideration of Pleasanton Municipal Code Chapter 20.26 and the California Green Building Standards Code (CALGreen 2010) at Title 24 Cal. Code of Regulations, Part 11.