I need detailed septic system plans for a developed residential property in Hawaii, covering less than 1 acre. The plans must comply with local regulations and be suitable for existing structures. Requirements: - Accurate site assessment - Compliance with Hawaii's environmental regulations - Detailed diagrams and specifications - Experience with residential septic systems Ideal Skills and Experience: - Expertise in septic system design - Knowledge of Hawaiian regulatory requirements - Experience with developed properties Please provide relevant experience and a timeline.