A. Application Review: Upon submittal of a complete grading application form and grading permit fee, the Director of Public Works and Development Services will determine whether a site grading plan will be necessary and, if so, the level of plan detail that will be required.
B. Plan Detail: The site grading plan may be required to include:
1. Name, address, email, and telephone number of the professional engineer(s) responsible for the preparation of the site grading plan;
2. Date of original preparation and any revisions;
3. Legend;
4. Scale of drawing;
5. North arrow;
6. Site address;
7. Existing and proposed contour intervals that extend a minimum of twenty-five feet off site, or sufficient enough to show on and off site drainage and spot elevations as deemed necessary by the Director of Public Works and Development Services;
8. Site property lines and/or lot lines and all drainage and utility easements on, under or across thereto;
9. Location and representation of all existing natural drainage and runoff patterns, swales and direction of flow, as well as all stormwater facilities, including all surface and subsurface drainage devices or walls on or within twenty-five feet of the site;
10. Delineation of the drainage area and the drainage area served by all existing and proposed downspouts;
11. Location of downspout, sump pump, and area drain discharges and all associated piping;
12. Location and identification of existing vegetation, proposed vegetation to be placed on the site, and vegetation to be removed from the site;
13. Location of flood protection areas;
14. Location of any existing and proposed buildings and structures, including top of foundation, finish floor elevation, garage slab, and elevations of proposed finished grade at all significant points around the proposed building or structure, including window well rims and adjacent grades, patios and swimming pools;
15. Existing and proposed impervious surface area calculations;
16. Delineation of the measures that will be used to control surface erosion and runoff from the site after all improvements have been constructed on site;
17. Elevation and descriptions of the benchmark utilized for the site grading plan.
The North American Vertical Datum of 1988 should be used for all properties within or adjacent to a Special Flood Hazard Area;
18. Three or more representative cross sections at each property line shared by a neighboring property. Cross sections shall extend between the top of foundation (T/F) of the proposed structure to the T/F of the adjacent structure (where applicable) or a distance sufficient to determine drainage patterns;
19. Locations of all manholes, utility structures, fire hydrants, streetlights, curbs, sidewalks, transformers, junction boxes and pads/pedestals located in the public right of way adjacent to the property or as requested by the Director of Public Works and Development Services;
20. Location, elevation, size and material of all existing private and public utilities;
21. To the extent the site grading plan includes a connection to a sewer, provide the size and location of all sewers, water mains, and open ditches located in the public right of way or in any easement. The rim and invert elevation shall be provided for all structures within or near the vicinity of the subject property. The direction of flow for all sewers and open ditches must also be provided, as well as the methods to be used to protect them;
22. A volume control plan, if required by Chapter 13, that includes the following:
a. Calculations of impervious area and the associated volume required for the Volume Control Practices.
b. Pretreatment measures to protect the functionality of Volume Control Practices where necessary;
C. A Statement by a professional engineer, stating that the proposed project will not cause or aggravate drainage, erosion or runoff which adversely impacts adjacent properties or public rights of way shall be submitted.
D. Submittal Of Site Grading Plan:
1. Submittal Requirements: The site grading plan shall be prepared and stamped by a professional engineer (licensed in the state of Illinois), and drawn to a scale of one inch equals twenty feet. The plan and all supporting documentation shall be submitted electronically via the Village’s current Permit Portal.
2. Notice to Adjacent Property Owners: The applicant shall provide notice of the land disturbing activities to any adjacent property owner, on the form to be provided by the Village. Proof of said notice, by means of a signed affidavit form, shall be submitted with the site grading plan.
E. Submission of Additional Data: The of Public Works and Development Services shall review all documentation submitted pursuant to this Section and, if deemed necessary to evaluate potential adverse consequences from the proposed land disturbing activity, the Director of Public Works and Development Services has the authority to request additional data, clarification or correction of data already submitted, and the authority to require additional or alternate measures based upon site conditions.
F. Conditions Or Modifications Imposed: The Director of Public Works and Development Services may impose reasonable conditions on other land disturbing activities in order to prevent or mitigate such adverse impact on trees, adjacent properties or easements and rights-of-way, and any such restrictions shall be incorporated into the requirements of the grading permit. Such conditions may include, but are not limited to prohibiting excessive over digging, requiring shoring or requiring directional boring instead of open trenching. (Ord. 3877, 11-14-2022)