(a) Preserve natural watershed boundaries and drainage patterns;

(b) Reserve adequately sized areas for stormwater infiltration, detention and treatment early in the site planning process;

(c) Locate stormwater BMPs prior to runoff leaving the site or entering waters of the state, and outside of wetlands, floodplains, primary or secondary environmental corridors, woodlands, or isolated natural areas;

(d) Minimize soil compaction and maintain pre-development groundwater recharge areas;

(e) Minimize impervious surfaces and have them drain to vegetated areas for pollutant filtering and infiltration;

(f) Emphasize vegetated swales, warm season and wetland plantings, and low flow velocities for stormwater conveyance, treatment and infiltration, especially for transportation related projects;

(g) Allow for different stormwater management strategies for cleaner runoff (i.e. roofs) versus more polluted runoff (i.e. heavily used streets and parking lots);

(h) Provide overland flow paths throughout the site to safely convey stormwater around buildings and structures. Additionally, overland flow paths to the receiving watercourse downstream of BMP’s shall be analyzed to minimize adverse impacts to neighboring landowners.

(i) Distribute stormwater bioretention and infiltration BMPs throughout the site plan for large land developments; [Code § 17.09-2.]