(A) The developer shall provide the development with a complete sanitary sewer system which shall be connected with the municipal sanitary sewer system, subject to there being capacity within the municipal system to accept the proposed load.
(B) When no municipal sanitary sewer system is available or is not reasonably accessible to the development, the developer shall provide the development with a complete sanitary sewer system which shall be connected to a sanitary sewer system approved by the State Department of Public Health and/or the State Environmental Protection Agency.
(C) When no approved sanitary sewer system is available, or is not reasonably accessible to the development, one of the following methods of sewage disposal shall be used:
(1) (a) When the topography of the subdivision does not allow for connection to the municipal sanitary sewer system with a gravity sewer, the subdivider shall provide the subdivision with a pumping station that pumps the sewage to the nearest available municipal sanitary sewer. The pumping station shall be designed to accommodate the loading produced by the proposed subdivision and any other upstream areas that are tributary to the subdivision. Sanitary sewer loading produced by the tributary area shall be estimated using the following criteria for residential development based on the zoning classification:
R-S | 15 people/acre |
R-1 | 21 people/acre |
R-2 | 36 people/acre |
R-3 | Reserved |
R-4 | 73 people/acre |
R-5 | 73 people/acre and 250 gallons/person/day |
B-1 General Business | 15 people/acre of developed land and 250 gallons/person/day |
B-2 Highway and Service Business | 15 people/acre of developed land and 250 gallons/person/day |
I-1 Light Industrial | 15 people/acre of developed land and 250 gallons/person/day (exclusive of industrial waste) |
I-2 Heavy Industrial | 15 people/acre of developed land (exclusive of industrial waste) and 250 gallons/person/day |
(b) Once the sewage loading has been determined, the sanitary sewer system to receive the loading shall be evaluated to determine if it has adequate capacity. Pumping stations shall be designed in accordance with the State Rules and Regulations, Title 35, Subtitle C, Chapter II, Part 370, Illinois Recommended Standards for Sewage Works (latest version). Specific equipment and materials used in the pumping station such as pumps, valves, motors, pipe, control panels, wiring and the like shall be subject to approval by the Village Engineer. Copies of all mechanical and electrical component testing shall be provided to the Village and Village Engineer. Upon construction completion of the pumping station, a successful start-up operation shall be performed in the presence of a manufacturer’s representative, village representative(s) and Village Engineer. Any and all manufacturer’s warranties shall be transferred to the village.
(2) Private sewage disposal systems consisting of septic tanks and tile absorption fields or other approved sewage disposal systems laid out in accordance with the requirements of the State Department of Public Health are not permissible within the village corporate limits.
(D) Whenever a private sewage disposal system is to be utilized, the developer shall require as a condition of the sale of each lot in the development that the private sewage disposal system be constructed by the owner of the lot before occupation of the lot occurs.
(E) No storm sewers, sump drain lines, footing tile lines, roof drainage systems and the like shall be connected to sanitary sewer lines.
(F) Sanitary sewer pipe shall have a minimum diameter of eight inches for main line sewers and six inches for sewer service, and shall be of material, joints and fittings as specified by the village, or as approved by the Village Engineer.
(G) A tee and sewer service shall be constructed for each individual lot or parcel in the development and shall be a minimum of six inches in diameter. The six-inch sewer service shall extend to five feet beyond the right-of-way line. A service riser may be required by the Village Engineer if the depth of the main line sewer is excessive. The material for the sewer service pipe shall be as specified above.
(H) 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 pre-cast concrete and have a minimum 0.1 feet of drop across the flowline. Manhole lids for sanitary sewer shall be completely closed and self-sealing. Where sanitary sewers are terminated at the boundary of the current subdivision so as to serve future development, a six-inch diameter clean-out shall be constructed at the terminus of the sewer pipe, raised to grade and capped with a cast iron plug to provide access to the system. The cleanout shall be acceptable to the Village Engineer.
(I) All sanitary sewer construction shall be done in accordance with the Standard Specifications for Water and Sewer Main Construction in Illinois, latest edition. All sanitary sewer trenches shall be backfilled with select granular FA-6 as defined by the State Department of Transportation Standard Specifications for Road and Bridge Construction (latest edition) and Supplemental and Recurring Special Provisions Gradation FA-6 and compacted by approved methods.
(J) If larger size sewers are required by the village to serve areas other than the commercial development, the cost difference may be paid by the village in accordance with any such policies in effect at the time the development is considered.
(K) Upon completion of the sanitary sewer system, the developer’s engineer shall certify that the sanitary sewer system has been constructed in accordance with the approved plans and specifications and shall furnish the village with copies of the record drawings. The developer’s engineer shall submit test results to the Village Engineer and Sangamon County Water Reclamation District for allowable leakage and deflection (where applicable) with the record drawings. When noncomplying or improperly installed systems and material is reported, all corrective cost of repairs and replacements shall be the responsibility of the installing contractor and/or all responsible parties.
(L) The Springfield Metro Sanitation District shall inspect service connections prior to backfilling.
(2009 Code, § 41-5-4) (Ord. 10-09-01, passed
10-09-2001
; Ord. 07-10, passed 8-13-2007)