N.H. Code Admin. R. Env-Wq 1502.30
“Impervious cover” means a structure or a land surface with a low capacity for infiltration, including but not limited to compacted soils with a curve number of 96 or greater, pavement, roofs, roadways, and driveways.
Source. #9343, eff 1-1-09; ss by #9817-A, eff 12-1-10; ss by #12342, eff 8-15-17 (formerly Env-Wq 1502.28); ss by #14472, eff 1-19-26, EXPIRES: 1-19-36 (formerly Env-Wq 1502.32)