§ 153.099  EROSION CONTROL.
   (A)   Lots shall be laid out so as to provide positive drainage away from all buildings, and individual lot drainage shall be coordinated with general storm drainage pattern for the area. Drainage shall be designed so as to avoid concentration of storm drainage water from each lot to adjacent lots.
   (B)   All single-family residential lots shall be graded such that the building site elevation on the lot is not less than one foot above the highest adjacent centerline elevation of the adjacent pavement, nor more than three feet, based upon a 30-foot front yard setback on a local street. All lots shall be graded to fully drain. Turf areas with slopes of less than 0.5% shall generally not be allowed. Special lot grading to meet unusual site conditions may be utilized, as authorized by the Village Engineer.
   (C)   Soil erosion control measures shall be implemented in general accordance with the following standards:
      (1)   Standards and Specifications for Soil Erosion and Sediment Control, prepared by the Northeastern Illinois Natural Resource Center, et al.;
      (2)   Standards and Specifications for Soil Erosion and Sediment Control, prepared by the State EPA; and
      (3)   The State Urban Manual, prepared by the Natural Resources Conservation Service.
   (D)   Prior to the commencement of construction, the subdivider’s erosion control plan shall be presented for review by the Plan Commission and the Village Engineer. Straw bale dikes, silt fences, and other soil erosion control measures shall be installed on the first day of construction activities. As construction activities progress, additional erosion control measures shall be implemented and installed, as warranted by site conditions.
   (E)   All bare soil surfaces on lot areas and areas not in major construction activity zones shall be temporarily seeded with an oats or rye grass cover crop within 14 days after start of construction or disturbance, or after active grading occurs, whichever occurs sooner.
   (F)   No certificate of occupancy shall be issued until final grading has been completed in accordance with the approved subdivision plat and the lot precovered with topsoil to an average depth of at least six inches over the entire area of the lot. The topsoil shall not contain particles greater than three inches in diameter. This does not include those portions of the lots covered by buildings or included in streets, or where the grade has not been changed or natural vegetation seriously damaged. Lot areas, including areas between the sidewalks and curbs, shall be stabilized by seeding and mulching.
   (G)   All street rights-of-way, commons areas, the lot areas described in division (D) above, and other similar areas shall be fertilized, seeded, mulched, and watered, in accordance with §§ 250 and 251 of the Standard Specifications for Road and Bridge Construction, IDOT. The grass seed mixture shall be lawn mixture, Class 1, as described in Table 1 of Article 250.07 of the aforementioned Standard Specifications. The mulch shall be applied in accordance with Method 2, Procedure 2, of Article 251.03 of the aforementioned Standard Specifications.
   (H)   Subdivider may use sod instead of grass seed if immediate surface cover is desired or required.
(Ord. 97-7, passed 7-1-1997, § 5.20)