15.04.613

Other

• Audit rate for large projects15 pct

  In large projects or projects with multiple landscape installations, an auditing rate of one in seven lots or approximately 15 percent will satisfy this requirement.

• Irrigation audit required after installation

  After completion of the installation, a landscape irrigation audit must be conducted by a City landscape irrigation auditor or a third party certified landscape irrigation auditor and submitted with the Certificate of Completion.

• Compost application rate4 cubic yardscubic yard (cy)A unit of earth volume used in grading limits — roughly one dump-truck scoop. per 1000 sq ftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  Incorporate compost at a rate of at least four cubic yards per 1,000 square feet to a depth of six inches into landscape area

• Automatic irrigation controller with ET or soil moisture sensor

  Automatic irrigation controllers are required and must use evapotranspiration or soil moisture sensor data and utilize a rain sensor.

• Irrigation emission devices must meet ASABE/ICC 802-2014

  All irrigation emission devices must meet the requirements set in the American National Standards Institute standard, American Society of Agricultural and Biological Engineers'/International Code Council's (ASABE/ICC) 802-2014...

• Pressure regulators required

  Pressure regulators must be installed on the irrigation system to ensure the dynamic pressure of the system is within the manufacturers recommended pressure range.

• Manual shut-off valve required

  Manual shut-off valves (such as a gate valve, ball valve, or butterfly valve) must be installed as close as possible to the point of connection of the water supply.

• Maximum slope for turf installation25 pct

  Turf shall not be planted on sloped areas that exceed a slope of one foot vertical elevation change for every four feet of horizontal length;

• Maximum turf area as percentage of landscape area in residential and mixed-use areas25 pct

  Turf shall not exceed 25 percent of the landscape area in residential and mixed-use areas with residential dwellings;

• Minimum mulch depth3 inches

  Apply a minimum three-inch layer of mulch on all exposed soil surfaces of planting areas except in turf areas...

• Irrigation for areas less than 10 feet wide10 ft

  Areas less than 10 feet in width in any direction must be irrigated with subsurface irrigation or other means that produces no runoff or overspray.

• Overhead irrigation allowed hours

  Overhead irrigation must be scheduled between 8:00 p.m. and 10:00 a.m. unless weather conditions prevent it.

• Average WUCOLS plant factor for non-residential0.3 factor

  For non-residential areas, install climate adapted plants that require occasional, little or no summer water (average WUCOLS plant factor 0.3) for 100 percent of the plant area

• Average WUCOLS plant factor for residential0.3 factor

  For residential areas, install climate adapted plants that require occasional, little or no summer water (average WUCOLS plant factor 0.3) for 75 percent of the plant area

• Minimum distribution uniformity low quarter0.65 ratio

  All sprinkler heads installed in the landscape must document a distribution uniformity low quarter of 0.65 or higher using the protocol defined in ASABE/ICC 802-2014.

• Private submeter required for non-residential projects with landscape area >= 1000 sq ftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.1,000 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.

  For non-residential projects with landscape areas of 1,000 square feet or more, a private submeter(s) to measure landscape water use shall be installed.

• Turf prohibitedProhibitedNot allowed in the district at all, short of rezoning or a variance. in non-residential areas0 pct

  Turf is prohibited in non-residential areas;

• Minimum parkway width for turf10 ft

  Turf is prohibited in parkways less than 10 feet wide, unless the parkway is adjacent to a parking strip and used to enter and exit vehicles.

• Total annual applied water must be less than or equal to MAWA

  Total annual applied water must be less than or equal to the Maximum Applied Water Allowance (MAWA).