(A) The subdivider shall provide the subdivision with a complete sanitary sewer system which shall be connected with the municipal sanitary sewer system. Connection of new sanitary sewers to the existing system shall not be made until approved by the Village Engineer. The connection of the new sanitary sewer shall be sealed with a water-tight plug at all times until final testing is complete.
(B) The size and material type of sanitary sewers and appurtenances shall be approved by the Village Engineer. The minimum size of sewer mains shall be eight inches and the minimum size of sewer laterals shall be six inches. The type of material used for sewers greater than 18 inches in diameter or laid at depths exceeding 28 feet or at stream crossings and in unstable ground shall be approved by the Village Engineer.
(C) Sanitary sewers and appurtenances shall be in accordance with the latest edition of the Standard Specifications for Water and Sewer Construction in Illinois.
(D) No storm sewers, sump drain lines, footing tile lines and the like shall be connected to sanitary sewer lines.
(E) All sanitary sewers and service lines shall be laid with a minimum cover of four feet.
(F) All sanitary sewers shall be installed on granular cradle bedding.
(G) All sanitary sewer main and service line trenches located below or within two feet of street surfaces, sidewalks and curbs and gutters shall be backfilled with select granular backfill and mechanically compacted to 95% Standard Proctor Density (SPD) in minimum 12-inch loose layers.
(H) All other sanitary sewer trenches shall be compacted by mechanical compaction, jetting and water soaking or another means, as approved by the Village Engineer.
(I) A tee and lateral shall be constructed for each individual lot or parcel in the subdivision and shall be a minimum of six inches in diameter. The lateral shall extend to five feet beyond the right-of- way line. A service riser shall be installed at the point five feet from the right-of-way line.
(J) Manholes shall be built where sewers change in size, slope or direction, and at a maximum spacing of 400 feet for sewers 15 inches and less in diameter and 500 feet for sewers 18 inches through 30 inches in diameter. Manholes shall be precast concrete.
(K) All new sanitary sewers and appurtenances shall be tested for leakage by air exfiltration under pressure or other methods approved by the Village Engineer, tested for deflection, lamped for straightness and visually inspected. All tests shall be performed by the subdivider’s engineer or an independent testing company or under the observation of the Village Engineer and test results documented and submitted to the Village Engineer for review.
(Ord. 16-102, passed 4-4-2016)