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.
Charlotte Water needs services to clean and inspect sanitary sewer siphons regularly to maintain system performance and prevent overflows. Many siphons are challenging to clean and may require specialized equipment and techniques. The work involves cleaning and inspecting siphons of various sizes and configurations throughout the service area, with verification of their conditions and layouts. Cleaning schedules will be flexible and may include work during nights, weekends, or holidays to reduce service disruptions. In addition to the siphons themselves, the adjacent gravity sewer lines upstream and downstream of each siphon will also be cleaned and inspected. These services are essential to ensure the reliability and proper functioning of the sewer collection system.
Charlotte Water is seeking a contract for the as needed purchase and delivery of liquid emulsion polymers for solids dewatering, thickening, and as a settling aid for Charlotte Water’s WWTPs. This solicitation will include a multistep process to first determine which polymers meet Charlotte Water’s needs (via trials), then to assess pricing and vendor responsibility.
Charlotte Water maintains over 100,000 sanitary sewer manholes. This contract will be utilized for the repair and renewal of sanitary sewer manholes. Rehabilitation efforts from this contract are expected to reduce inflow within Charlotte Water’s collection system.
Charlotte Water (CLTWater) is soliciting Statements of Qualifications from qualified companies to provide Collaborative Delivery Support Services for various CLTWater and Storm Water Services projects.
CLTWater and Storm Water Services conduct several collaborative delivery projects each year. The departments are seeking a consultant to provide various services to support internal staff with the implementation of these collaborative delivery projects. Services will be related to helping the departments develop internal processes and procedures, advising staff through Guaranteed Maximum Price negotiations and reviews, and provide training for staff, all in an effort for continuous improvement, standardization, and staff development. Additional services may be required depending on the need that arises or the individual collaborative delivery project.
The Project consists of concrete repairs and coating applications in the south filter gallery gullets and south sedimentation basin flumes. Improvements to the flocculation basin effluent flumes, including installation of a concrete bulkhead and stop plates. Additional work includes hatch installations, miscellaneous concrete repairs throughout the facility, and miscellaneous small diameter pipe replacement.
This project will be adding freeze protection to the two warehouse spaces that are approximately 30,000 square feet. The space currently has no permanent means of heat. The completed project will include several space heaters, piping, and electrical controls. This will also include a storage pad and outdoor bulk propane tank which will fuel the heaters.
The Waste Activated Sludge (WAS) Equalization and Blending and Odor Control Improvements Project includes upgrades to several facilities at the McAlpine Creek Wastewater Management Facility (WWMF). Primary components include construction of a new cast in place concrete WAS equalization structure with multiple tanks/cells with mixers and pumps to allow for equalization and blending of WAS from the McAlpine Creek WWMF, Sugar Creek Wastewater Treatment Plant (WWTP) and in the future the Irwin Creek WWTP. Adjacent to this structure is a blending basin pump station which will convey blended WAS to the existing solids treatment process and in the future to the planned Thermal Hydrolysis Process. In addition, the project includes a new wet scrubber chemical odor control system for the Screening and Grit Facility, new duct work to this system from the south plant primary clarifiers and gravity thickeners as well as the rehabilitation of the Consolidated Influent Pump Station (CIPS) odor scrubber system.
The project consists of installation of 6,000 LF of new 3-inch x 6-inch diameter double wall containment pipe for new chlorine dioxide chemical feed system, including all appurtenances, leak detection system, electrical, testing, and final commissioning. Installation of two (2) new 2-inch diameter HDPE raw water sample lines (approximate length is 6,000 LF for each), including all appurtenances, and testing. Installation of a new raw water sample pump, casing, piping, appurtenances, electrical, and testing at the Raw Water Intake at Blythe Landing. Removal and replacement of various chemical feed lines (11/2-inch and 4-inch diameter) inside existing 8-inch and 12-inch diameter casing pipes. Installation of new fiber optic cable (approximately 6,000 LF) between the Lee S. Dukes WTP and the Raw Water Intake. Installation of new potable water line from Highway 73 to existing Compressor Building, including all appurtenances, and testing.
