§ 153.210  TILE DRAINS.
   (A)   All major stormwater surface drains as designated by the Village Engineer shall be constructed with a subsurface drainage tile system as shown on the attached standard details.
   (B)   All dry bottom stormwater detention basins shall be constructed with a low-flow drain and, if necessary, a subsurface drainage tile system.
   (C)   Minimum drain pipe size shall be six inches in diameter. Minimum capacity shall be the rate of discharge necessary to convey 0.35 inches per acre per day for the tributary watershed.
   (D)   Drain pipe materials shall be as specified in the following divisions, unless directed otherwise by the village’s Maintenance Superintendent:
      (1)   Clay drain tile (four through 36 inches in diameter) conforming to AASHTO Designation M 179; Type II, Extra-Quality Drain Tile;
      (2)   Concrete drain tile (four through 36 inches in diameter) conforming to AASHTO Designation M 178; Heavy-Duty Extra-Quality Concrete Drain Tile;
      (3)   Perforated corrugated drainage tubing (four through ten inches in diameter) conforming to AASHTO Designation M 252; Type SP (full circular cross section with a corrugated tubing wall and a smooth interior liner) with Class 2 perforations;
      (4)   Perforated corrugated PVC pipe (four through ten inches in diameter) conforming to “Poly(Vinyl Chloride)(PVC) Corrugated Sewer Pipe With a Smooth Interior and Fittings,” ASTM Standard F-949; perforated, with flexible elastomeric joints; and
      (5)   Corrugated polyethylene tubing and fittings (three through six inches in diameter) conforming to ASTM Standard F-405; with perforations.
   (E)   Subsurface drainage tile systems shall be provided adjacent to new residential lots to allow for connection of sump pump outlets, footing drains, and other dry weather water outlets to the tile drainage system.
   (F)   Tile drains shall be provided with inlets or cleanouts to allow for inspection and maintenance of the tile system.
   (G)   Existing agricultural tile drains serving upstream, off-site areas shall be intercepted at the edge of the development site and redirected into the storm sewer, tile drainage, or surface drainage system provided within the development.
   (H)   Existing easements for any agricultural drainage tile located within development sites shall be preserved. If no easement exists, an easement shall be granted for access and maintenance of the tile drain. Such easements shall be of sufficient width and located to provide for continued functioning and necessary maintenance of drainage facilities. No buildings or permanent structures, including paved areas but excluding streets, sidewalks, or driveways, which cross the easement by the shortest possible route may be located within the easement without the consent and approval of the public body to which the easement is granted.
   (I)   Agricultural drainage tile which, due to development, will be located underneath roadways, drives, or parking areas shall be replaced with storm sewer quality pipe materials.
   (J)   All drainage tile facilities which are broken or damaged during construction shall be restored as nearly as possible to their original state by the subdivider, except that all field tiles shall be connected to the storm sewer system where necessary for protection of improvements or prevention of upstream flood damage. This requirement may be waived by the Village Engineer if the repair or connection would serve no useful purpose. All field tile repairs shall be witnessed by the subdivider’s engineer or the village’s Maintenance Superintendent.
(Ord. 97-7, passed 7-1-1997, § 5.19)