Specifications include, but are not limited to: 1. Site Inspection: The Contractor should inspect the project site in the field prior to preparing their bid. Contractor is responsible to verify pipe diameters, pipe lengths and pipe depths prior to ordering materials. The City of Wichita will not be responsible for unusable material ordered by the Contractor. Pipe installation will be paid as bid and there will be no additional costs paid for variances to pipe size, length or depth. 2. Notice to Property Owners: The Contractor will be required to give all property owners and/or tenants directly affected by the construction of this project a written minimum advance notice of seven (7) days prior to starting construction. The Contractor shall again notify residents or businesses immediately prior to beginning work that sewer service will be disrupted. The written notice shall provide a description of the work, how it affects the property owner or tenant, and a telephone number of the Contractor they can call to discuss the project or any problem which could arise during or after the project is completed. 3. Unpaved Alley Restoration. Disturbed areas on drivable Right-of-Way shall have 95% compaction. The surface shall be restored using crushed concrete or rock containing up to 50% crushed asphalt (RAP). 1” aggregate may also be used. 4. Removed Manhole Castings. For manholes removed, manholes abandoned or for frame and cover replacements, the old manhole castings shall be salvaged, cleaned and delivered to the Sewer Maintenance yard at 715 W. Harry, Wichita, KS. 5. Flow of Sewage: The Contractor shall be responsible for maintaining continuous flow of sewage through the construction site at all times. The Contractor’s proposed method for maintaining sewage flow shall be approved by the Engineer. Cost of maintaining flow of sewage through construction will not be paid for directly and this cost shall be considered subsidiary to the project. 6. Sewer Service Interruption: No building is to be without sewer service for more than 24 hours, and coordination of the same with the property owner is the contractor’s responsibility. 7. Damage to Existing Structures: If damaged during construction, existing manholes, sewer lines and other appurtenances to remain in service shall be repaired to original condition without additional payment 8. Subsidiary Costs: All costs for removal of observation holes shall be subsidiary to the price bid for sewer pipe removed. 9. Building Service Lines: Building sewer service lines shall be Sch. 40 PVC pipe. Connections to existing building service lines shall follow the Special Provisions PART 800, Item 8, for Sanitary Sewer Couplings. Only active service lines which connect buildings to the sewer system are to be reconnected to the new sewer line. Building service lines and\or connections which have been abandoned are not to be reconnected to the new sewer line. It will be the sole responsibility of the Contractor to ascertain which building service lines and\or connections are active and which services and\or connections have been abandoned. An unoccupied building is still considered to have an active service line. Any service line not in a condition which would permit reconnection, shall be replaced as much as necessary, up to the easement boundary, at no additional cost to the project. If the building service line has failed beyond the easement, the Contractor shall notify the project inspector or the home owner of the existing problem. 10. Service Reconnection Records: For all building services that are reconnected to the new sewer, the Contractor shall provide to the Engineer the stationing and direction of the building connection and the address of the property being served. Such information shall be provided in tabular form. 11. Flowable Fill: Flowable fill will be required per Standard Specifications under any paved city streets, alleys, or other surface, including but not necessarily limited to, approaches, drives, and sidewalks within street or alley right-of-way. Flowable fill will be required under paved surfaces as described, when the distance between top of pipe and top of pavement is greater than or equal to five feet. Otherwise, Contractor may sand fill the trench, flush and vibrate, per the Standard Specifications. 12. Trees and Shrubs: Trees or shrubs located within the utility easement and/or right-of-way shall not be removed without prior approval of the Engineer. Trees or shrubs outside the easement and/or rightof-way shall not be removed. 13. Fence Removal: Any fence removed for construction shall be replaced in a condition equal to or better than the original, at no cost to the owner. 14. Replace Manhole Frame & Cover: This bid item will also include any other work necessary to the cone or stack to bring the top portion of the manhole in compliance with the Standard Specifications. 15. Sanitary Sewer Service Saddles: Sewer saddles shall be installed using epoxy and will be banded to the main. Saddles must be PVC saddle tees and have a flange at least one inch wide on each side of the connection. This saddle will be used with either a PVC or clay sewer main. The saddle must be set with epoxy and each flange must be secured with a stainless steel band. The screws must be epoxy coated. Predco epoxy kit part numbers 4E and 6E are approved. Solvent-weld cement will not be approved for attaching saddles to mains. 16. Concrete Encasement: If it is discovered that reinforced concrete encasement will need to be removed and/or installed, the contract will be adjusted to pay $30.00 per linear foot for the removal of concrete encasement, and to pay $50.00 per linear foot for the installation of concrete encasement. 17. Sewage Disposal: Contractor is responsible for the proper disposal of any debris or liquid waste pulled from the sewer line during construction and for all costs associated with the disposal.
