68078c26_December_2013_Issue__Performance_Standard
[State] VA [Applicability] Disturbances greater than 1 acre (2,500 square feet in Chesapeake Bay Preservation Act areas) Off-site compliance, including local stormwater plan, pro-rata share, or purchase of nutrient credits within Bay watershed [Performance Standard] 
New development: TP load from new development may not exceed 0.41 pounds per acre per year Redevelopment: Reduce existing TP load by 10%–20%, depending on disturbed area
December 2013 Issue
Performance Standard