99.11.06(A)(1)(c)

Other

• Audit rate for large projects15 pct

  an auditing rate of 1 in 7 lots or approximately 15% will satisfy this requirement.

• Friable soil requirement for planted areas

  All planted landscape areas are required to have friable soil to maximize water retention and infiltration.

• Graywater system code compliance

  All graywater systems shall conform to the California Plumbing Code (Title 24, Part 5, Chapter 16) and any standards adopted by the City of Needles.

• Mixing high and low water use plants in hydrozone

  Individual hydrozones that mix high and low water use plants shall not be permitted.

• Hydrozone valve requirement

  Each valve shall irrigate a hydrozone with similar site, slope, sun exposure, soil conditions, and plant materials with similar water use.

• Assumed irrigation efficiency for drip0.81 ratio

  0.81 for drip system devices

• Assumed irrigation efficiency for overhead spray0.75 ratio

  average irrigation efficiency is assumed to be 0.75 for overhead spray devices

• Irrigation method for narrow areas10 ft

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

• Overhead irrigation scheduling window

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

• Maintenance schedule required

  A regular maintenance schedule shall be submitted with the Certificate of Completion.

• Maximum irrigation application rate on slopes >25%0.75 in/hr

  Slopes greater than 25% shall not be irrigated with an irrigation system with an application rate exceeding 0.75 inches per hour.

• Model home landscaping and signage required

  All model homes shall be landscaped and use signs and written information to demonstrate the principles of water efficient landscapes described in this ordinance.

• Overhead irrigation setbackSetbackThe distance a building must be held back from a lot line. from non-permeable surfaces24 in

  Overhead irrigation shall not be permitted within 24 inches of any non-permeable surface.

• Recommended stormwater capture capacity1 in

  It is strongly recommended that landscape areas be designed for capture and infiltration capacity that is sufficient to prevent runoff from impervious surfaces (i.e., roof and paved areas) from either: the one inch, 24-hour rain event or (2) the 85th percentile, 24-hour rain event

• ET Adjustment Factor for Special Landscape Areas1 ratio

  The ET Adjustment Factor for new and existing (non-rehabilitated) Special Landscape Areas shall not exceed 1.0.

• Third-party certified auditor required

  All landscape irrigation audits shall be conducted by a third-party certified landscape irrigation auditor.

• Trees on separate valve

  Where feasible, trees shall be placed on a separate valve from shrubs, groundcovers, and turf to facilitate the appropriate irrigation of trees.