Page 10 - Efficient Irrigation and Landscape Design Standards

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3.1 REQUIRED DOCUMENTATION PACKAGE
In order to determine conformance with water-efficient landscape and irrigation design standards, applicants will need to prepare various documentation, including, but not limited to the following:
• Landscape design plan
• Irrigation design plan
• Irrigation water demand calculations and a watering schedule
• Landscape maintenance schedule
• Grading design plan
• Soil analysis
• Reclaimed water use
The adopting jurisdiction may also consider requiring certain elements of this package at different stages of project review.
3.2 REQUIREMENTS OF A LANDSCAPE PLAN
LANDSCAPE AND IRRIGATION PLANS
The adopted water efficient irrigation and landscape ordinance/standards should identify the required items that will be shown on a submitted landscape plan to determine conformance with the
water efficient landscape design standards.
The adopting jurisdiction should examine its existing landscape plan requirements to ensure that the plans depict water efficient landscape features such that they can be reviewed for conformance with water efficient landscape standards.
For example, the City of Post Falls, ID requires the following to be shown on a submitted landscape plan. This language is typical of most jurisdictions in the region:
• Boundaries and dimensions of the site.
utility lines, sidewalks.
• Location of buildings and structures, parking lots, driveways, loading areas, outdoor mechanical equipment, signs, refuse enclosures, overhead utilities, water meter location, grassy swales, parking lot lighting, and any plants or trees that are to remain on site.
• The location and design of landscape areas to be landscaped, and plant list to include the location, number, size and type of plant material by botanical and common name.
• North arrow and scale.
• Proposed irrigation system. All landscaped areas, including adjacent rights of way shall be provided with an underground irrigation system.
• Planting details (using Post Falls detail for trees).
It should be noted that most local jurisdictions require irrigation as shown in Post Fall’s ordinance. However, submittals of irrigation plans and calculations are almost never required to ensure water conservation measures are employed.
• Location of existing and proposed streets, curbs,
10 IDAHO WASHINGTON AQUIFER COLLABORATIVE