Charlotte Water needs to establish an annual sanitary sewer siphon cleaning program to optimize system performance and prevent sanitary sewer overflows. Many of the siphons are difficult to clean and may require specialty cleaning and inspection equipment. The intent of this project is to clean each siphon in the collection system at least once every year.
Cleaning and post cleaning inspection services for various diameters, lengths and configurations of inverted siphons, including flow control, throughout the Charlotte Water service area. The diameters of siphon pipes to be cleaned and inspected range from 6-inch to 48-inch and include both single and multi-barrels. Available siphon information, along with maps and as-builts, are found later in these specifications. The Company shall verify the sizes and configurations of each siphon and report any discrepancies to the as-builts to Charlotte Water. Cleaning schedules will vary, as required, and may include the need to perform services during nights, weekends, and/or City observed holidays.
This contract will service the Field Operations Division of Charlotte Water and will primarily focus on the annual cleaning and inspection of approximately fifty (50) inverted siphons throughout the Charlotte Water service area.
The Company will be required to clean and inspect all 50+ siphons within the contract time period and will be responsible for scheduling the work. In addition, the Company will be required to clean and TV at least two (2) gravity lines directly upstream and two (2) gravity lines directly downstream of each siphon. Diameter of these lines range from 8-inch to 54-inch.
A company shall provide all materials, equipment, labor, and incidentals required to perform pipe patching for the purpose of repairing joints and offset joints, crowns, and service laterals with an ambient cure, fiberglass liner impregnated with thermosetting epoxy for laterals and main lines within Charlotte Water’s service area.
Charlotte Water will be soliciting proposals from interested companies for siphon pipe inspection and cleaning services. Charlotte Water will be awarding a contract to perform planned siphon pipe inspections and cleaning on a re-occurring maintenance schedule with a standard frequency.
A Charlotte Water representative shall be present when the final cleaning runs are made to ensure cleanliness and will make the final decision on whether the cleaned siphon is acceptable or not. When available, construction drawings of the siphon(s) to be cleaned will be provided.
This project involves the rehabilitation of approximately 7,000 linear feet of reinforced concrete pipe (RCP) sewer outfall. The sewer outfall is located just south of Highway 51, running parallel to McAlpine Creek. The work will improve the structural integrity and performance of the sewer system.
This project will provide the necessary upgrades needed to support the proposed development called the River District.
Charlotte Water, a Department of the City of Charlotte, will be soliciting Proposals from interested Companies for Sanitary Sewer Cleaning and Closed Circuit Television (CCTV) Inspection Services of sanitary sewer pipes, including flow control, within the Charlotte Water service area. To ensure that the wastewater service flows properly, the sanitary sewer system must be regularly checked to ensure continuous flow with limited interruptions and to assist in maintaining the infrastructure from various issues including: root intrusions, broken or cracked sanitary sewer lines, illegal connections, or other pipe damage from external causes. This solicitation will be comprised of two scopes of services, scheduled and on-call services.
Sanitary sewer pipes must be cleaned to within 99% of the original carrying (flow) capacity of the pipe. All grease, roots, and debris shall be completely removed to be considered clean.
