The most important goal of soil erosion and sedimentation regulations is the protection of:

Soil erosion and sedimentation regulations aim to prevent soil loss and sediment runoff, which can degrade water quality and ecosystems. The most important goal is protecting drainage ways and watercourses (option D), as sediment pollution primarily impacts streams, rivers, and lakes, affecting aquatic life and water quality. The APA’sAICP Certification Exam Content Outline(2022), under “Plan and Policy Development,” states, “Soil erosion and sedimentation regulations primarily protect drainage ways and watercourses from sediment pollution.” Options A (residential subdivisions), B (farms), and C (new construction) may benefit indirectly, but the primary focus is water protection. TheCPC Study Manual(2024) confirms, “The key goal of erosion and sedimentation regulations is to protect drainage ways and watercourses from sediment impacts,” supporting option D.