68078c26_December_2013_Issue__Performance_Standard
[State] WV [Applicability] Disturbances greater than 1 acre for MS4 areas MS4 general permit authorizes off-site mitigation and in-lieu fee [Performance Standard] 
New development: Provide on-site runoff reduction for the first 1 inch of rainfall Redevelopment: Provide on-site runoff reduction for 0.25–0.8 inch of rainfall
December 2013 Issue
Performance Standard