(a) The Superintendent, upon recommendation from the Township Engineer, shall maintain and make available a document captioned “Sanitary Sewer Standard Notes and Details”. This document shall contain specifications for acceptable materials, joint types and installation procedures regarding the installation of sanitary sewers, manholes, fittings, service pipe and other sanitary sewer appurtenances. All other installation requirements not addressed in this section are noted in Chapter 1248 “Standards for Engineering Design, for Preparation of Engineering Plans and Specifications, and for Construction of Site Improvements”.
(b) Materials that are approved for use are as follows:
(1) Sewer main with diameters between 10 inches-15 inches shall be SDR 26 PVC gasketed pipe or PVC/ABS Truss pipe.
(2) Reinforced concrete pipe, minimum class III for sanitary sewer mains 18 inches in diameter and larger. Class IV pipe will be required at all road crossings. The pipe shall conform to the ASTM specification C-76 with class designation on the plans. Class II or lower will not be allowed.
(3) Sewers with a diameter larger than 15 inches shall be of a material approved by the Department, EGLE and Township Engineer.
(4) Building service leads that are 6 inch in diameter shall be PVC solid wall SDR 23.5 or Schedule 40 pipe. Larger building service leads that are diameters eight inches or ten inches shall be SDR 26 PVC gasketed pipe or PVC/ABS Truss pipe.
(5) All plastic-derived piping must be installed with tracer wire with an approvable termination/testing box.
(c) All sewer service pipes and taps laid within a right-of-way, easement, street or alley shall be furnished, installed and maintained at the expense of the owner or user. The currently published fee for tapping the main sewer shall be charged as hereinafter provided.
(d) When a development requires public sanitary sewer, and where applicable, the property owner will be required to extend the public sanitary sewer the entire frontage of the property and provide a watertight stub at the property line to allow for future connection of upstream properties. The sanitary sewer shall be located within a public utility easement or public right-of-way.
(e) Sewer service pipe installed within and outside of the right-of-way of any street shall have a minimum diameter of six inches and an approved watertight joint. All such sewer service pipe shall be laid in a manner described in “Sanitary Sewer Standard Notes and Details”. All such service pipe shall be laid with a fall from the building to the sewer. Such fall, insofar as practical, shall be uniform throughout the length of the sewer service pipe and shall be a minimum amount of one-eighth of an inch per foot (1%). All sewer service pipe, including the tap to the main, shall be furnished, installed and maintained at the expense of the user. At a minimum, the terminus of the sewer service pipe must have an invert that is at the crown of the public sewer main with a wye connection.
(f) All sewer service pipe shall be installed by a licensed contractor.
(g) No sewer main or sewer service pipe shall be covered until it is inspected and approved by the Superintendent or other authorized employees of the Water and Sewers Department. This also includes any new storm sewer installations.
(h) Stormwater from any source (i.e., downspouts, footing drains, etc.) shall not be permitted to enter the sanitary sewers. For buildings which are to be served by sanitary sewers and which have footing drains, the builder shall install a sump pump that discharges to a stormwater sewer or drain.
(i) During the construction period of basement homes, the builder shall back fill the basement as soon as possible after its construction, and shall take the necessary steps to keep any drainage water out of the sanitary sewer. To accomplish this, the installation of the building’s sewer service pipe shall be done under the following conditions:
(1) Any person requesting a sewer tap and paying the charges therefor under existing Township ordinances shall not be allowed to install the building’s sewer service pipe until such time as the basement floor is installed, the roof is on, the sump pump is operable, and the site and location where the building’s sewer service pipe is to connect to the building’s sewage plumbing are in a condition such that water, debris, and other foreign materials will not enter the Township sewer system (in the opinion of an inspector of the Water and Sewers Department), unless the person complies with subsection (g)(2) hereof.
(2) An applicant shall have the right to install a building’s sewer service pipe all the way inside the footing, at the time the building is started, provided that he or she places the currently published deposit in escrow; and provided, further, that the openings into the building’s sewer service pipe are sealed in a manner acceptable to the Superintendent.
(3) The applicant will forfeit the option set forth in paragraph (g)(2) hereof, if he or she has been found in violation of this chapter within twelve months preceding his or her application, but in no event shall the twelve-month period commence prior to January 26, 1995.
(j) Prior to a final certificate of occupancy, a Michigan licensed engineer or surveyor must certify that all public sanitary sewers are installed within a public easement.
(Ord. 319. Passed 12-22-97; Ord. 482. Passed 10-24-22.)