N.H. Code Admin. R. Env-Wq 1502.14
“Disconnected impervious cover” means impervious cover that directs stormwater runoff to on-site pervious cover to infiltrate into the soil or be filtered by overland flow such that the stormwater does not contribute directly to runoff from a site, and such that the net rate and volume of stormwater runoff from the disconnected impervious cover is not greater than the rate and volume from undisturbed cover of equal area.
Source. #9343, eff 1-1-09; ss by #12342, eff 8-15-17 (formerly Env-Wq 1502.14); ss by #14472, eff 1-19-26, EXPIRES: 1-19-36 (formerly Env-Wq 1502.16)