For purposes of this article, the following words and phrases shall have the following meanings:
(a) As Built Grading Survey: A survey by a licensed surveyor of actual grades at critical areas of the site, made following the completion of work and grading activities at the site, which is sufficient in the opinion of the village engineer to demonstrate drainage of stormwater runoff from the site in accordance with the approved stormwater drainage plan for the site.
(b) Engineer's Certificate Of Completion: A certificate by a licensed engineer, following the completion of work and grading activities at the site, that the engineer has inspected the site following completion of the work and that future stormwater runoff from the site will be contained, routed and released in accordance with the approved stormwater drainage plan for the site.
(c) Grading: Any excavation, clearing, filling or grading of a site that results in a change in elevation or a change in the volume, rate or direction of stormwater runoff.
(d) Grading Survey: A survey by a licensed surveyor of actual grades at critical areas of the site sufficient in the opinion of the village engineer to demonstrate drainage of stormwater runoff from the site. A grading survey shall also show the top of foundation elevation of structures adjacent to the site and the actual grades at critical areas on property abutting the site as necessary in the opinion of the village engineer to establish existing drainage patterns that may be affected by the work.
(e) Impervious Surface Improvements: A driveway, sidewalk, patio or other surface improvement that is constructed with materials rendering the same practically impervious to surface waters.
(f) Site: Any lot, block, tract or parcel of land in the R-1, R-2, R-3, R-4 or R-5 residential zoning district, or in a residential planned unit development, where work or grading is proposed or performed.
(g) Stormwater Drainage Plan: A plan for containing, routing and releasing stormwater runoff from a site approved by the village engineer. A stormwater drainage plan shall be consistent with the final engineering plans and drainage system, if any, approved for the subdivision in which the site is located and shall conform with all applicable laws and best engineering practices. A stormwater drainage plan shall address all portions of the site affected by grading activities, or by the construction of impervious surface improvements or any change which affects the rate, volume or direction of runoff.
(h) Stormwater Runoff: Water that results from precipitation that is not absorbed by soil or plant material before draining from a site.
(i) Work: Any work on an existing or proposed residential building, structure or site which changes, or proposes to change, the exterior dimensions at grade level of the building or structures on the site, or the volume, rate or direction of runoff. (Ord. 0-09-09, 4-20-2009)