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§ 155.122 BACKFILL OVER UNDERGROUND UTILITIES.
   (A)   Where an underground utility is to be placed in an area which has a permanent type street or sidewalk surface, or upon which such a surface is to be constructed within a period of one year, the backfill above the utility or in case of sewers, above the top of the granular cradle, to the level of the bottom of the permanent type pavement shall be made. This material will be in all areas where utility trenches cross the pavement subgrade, except in areas which will be lime treated or areas where rock will be used to stabilize the subgrade. The backfill shall be IDOT CA-6 or CA-7 crushed stone. Boiler slag will not be permitted.
   (B)   As an alternate, the use of “flowable fill” will be permitted. This mix shall consist of a lean concrete mix with no less than 50 pounds of cement per cubic yard, 200 to 600 pounds of fly ash, 2,000 to 3,000 pounds of fine aggregate and 35 to 65 gallons of water. Minimum 28-day compressive strength shall not be less than 150 psi.
   (C)   In areas not now subject to vehicular traffic, nor in the opinion of the village’s consulting engineer likely to be within a period of one year, backfill may be made with selected excavation material which is free from clods and stones; provided, such trench backfill is adequately jetted from the bottom up completely filling the trench immediately after backfilling.
(Prior Code, § 150.046) (Ord. 96-006, passed 2-5-1996)
§ 155.123 SIDEWALKS.
   Concrete sidewalks at least four feet wide and four inches thick shall be constructed on both sides of each street at least four and one-half feet from and at least four inches above the backs of the curbs. Sidewalks shall be located one foot inside the street right-of-way. Sidewalks shall be constructed along all streets bordering the subdivision. All sidewalks along arterials and minor arterials shall be five feet wide. All walks at corner lots shall be extended out to gutter(s) either by a common extension at the center or continue at right angles to the gutter.
(Prior Code, § 150.047) (Ord. 96-006, passed 2-5-1996)
§ 155.124 SEWAGE DISPOSAL.
   (A)   Sanitary sewers.
      (1)   When a subdivision is located within the service area of a public sanitary sewerage system, sanitary sewers shall be constructed throughout the entire subdivision in such a manner as to serve adequately each building lot.
         (a)   Public sanitary sewers shall be located in the north or west boulevard (between curb and sidewalk) within the street right-of-way or in a 15-foot easement behind the sidewalk within the house setback area. Parallel sewer lines along the street may be used. Sanitary sewers shall not be located in the rear yard.
         (b)   Under no circumstance shall the entrance of storm water or ground water to the sanitary sewers be permitted.
         (c)   All sanitary sewer collections and disposal systems shall comply with the ordinances of the village and the requirements of the Illinois Environmental Protection Agency.
      (2)   Acceptable sanitary pipe materials shall be acceptable to the village consulting engineer and shall consist of:
         (a)   PVC composite sewer pipe conforming to ASTM D 2680 with solvent weld or gasketed joints;
         (b)   Polyvinyl chloride (PVC) sewer pipe conforming to ASTM D 3034, type PSM for sizes four inches to 15 inches and ASTM F-679 for sizes 18 inches to 27 inches. Minimum acceptable SDR shall be 35; or
         (c)   PVC corrugated sewer pipe with a smooth interior. This pipe shall conform to the requirements of ASTM Standard F-794 and Uni-bell Uni-P-9. Pipe shall be made of PVC material having a cell classification of 124-54-B as defined in ASTM D 1784. Pipe stiffness at 5% deflection shall be 46 psi for all sizes (eight inches to 30 inches) when tested in accordance with ASTM 2412. PVC pipe meeting ASTM F-942 is not acceptable.
      (3)   All sanitary laterals will be marked by using a two-inch by four-inch (painted orange) board four feet above the ground to denote location of service lines.
   (B)   Private sewage disposal systems. Where no public sanitary sewerage system is available (see § 155.027(A)(1) of this chapter), individual sanitary disposal systems shall be installed to service individual dwelling units according to conditions set forth in § 155.027 of this chapter. These sanitary disposal systems shall be installed in accordance with the latest revised edition of the State Private Sewage Disposal Licensing Act and private sewage disposal code promulgated by the State Department of Public Health and the applicable ordinance of the village. Sufficient area shall be provided to accommodate two seepage fields.
(Prior Code, § 150.048) (Ord. 96-006, passed 2-5-1996)
§ 155.125 WATER SUPPLY.
   (A)   Public water supply.
      (1)   Water mains not less than six inches in diameter shall be constructed throughout the entire subdivision. Larger diameter pipes may be required by the village to provide for future transmission needs, in which case, the village shall pay any additional costs.
      (2)   Every water supply system shall be designed in such a manner as to provide an area fire flow meeting the requirements established by the village’s fire protection district. Water mains larger than six inches in diameter shall be installed at the subdivider’s expense if needed to provide the area fire flow required by the insurance services office guild for determination of required fire flow. A minimum of 1,000 gallons per minute with a residual pressure of 20 pounds per square inch shall be required. Fire hydrants with shut-off valves at each hydrant shall be installed throughout the entire system at maximum intervals of 400 feet or less. All fire hydrants shall be three nozzle hydrants with threads as specified by the village’s fire protection district and shall have flow characteristics similar to those of a five and one-fourth inch hydrant valve.
   (B)   Private water supply. When a public water supply is not feasible and the subdivision is outside the corporate limits of the village, a private well may be used. Wells shall be constructed according to the Illinois Water Well Pump Installation Code.
(Prior Code, § 150.049) (Ord. 96-006, passed 2-5-1996)
§ 155.126 ELECTRIC DISTRIBUTION.
   The underground electric distribution system shall be installed on utility easements along front lot lines. Transformers shall normally be placed on every other lot line with secondary conductors and distribution pedestals installed on the opposite side of the street. In some instances, transformers may be installed on both sides of the street. All primary and secondary cables shall be in conduit.
(Prior Code, § 150.050) (Ord. 96-006, passed 2-5-1996)
§ 155.127 STREET LIGHTING.
   Street lights shall be installed along public streets in the village by the subdivider.
(Prior Code, § 150.051) (Ord. 96-006, passed 2-5-1996)
§ 155.128 PUBLIC AREAS AND OPEN SPACE.
   (A)   Due consideration shall be given to the allocation of areas suitably located and of adequate size for playgrounds and parks for local or neighborhood use as well as public service areas.
   (B)   When a proposed school, neighborhood park, electric substation, water storage tank, recreation area or public access to water frontage shown in the official plan, if adopted, is located in whole or part in a proposed subdivision, the Village Board may require, as a condition of final plat approval, that such space within the subdivision be reserved and not developed for a period not to exceed one year from the date of such final plat approval. Within the one-year period, the appropriate public agency may acquire the reserved property in the manner provided by law. If the reserved site is not acquired and no legal action is filed within the one-year period, the reservation shall become void and the site previously reserved may then be used for other purposes.
(Prior Code, § 150.052) (Ord. 96-006, passed 2-5-1996)
MINOR SUBDIVISION
§ 155.140 PURPOSE.
   (A)   A minor subdivision is the creation of a total of up to four lots (counting the original tract from which the lots are created) which front along a public road.
   (B)   The minor subdivision is designed to allow the sale of said lots without the delay and expense of the conventional subdivision process.
(Prior Code, § 150.053) (Ord. 96-006, passed 2-5-1996)
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