A. All plants shall receive sufficient water to assure their survival. Planting areas over 500 square feet in size shall be irrigated with automatic systems designed to conserve water. The irrigation requirement may be modified or waived for planting areas with drought tolerant plants as long as it is demonstrated to the Administrator that adequate water will be provided to ensure the plants’ survival.

B. Where automatic irrigation is required, a subsurface irrigation or drip irrigation system shall be provided in accordance with all state and local rules, regulations and ordinances including approved backflow devices. All irrigation systems shall include a rain sensor device. The system shall completely cover all planting areas requiring irrigation.