Storm Water Maintenance, Repair, and Improvement – TR2025

Work performed under this transportation repair (TR) contract will consist of storm water infrastructure maintenance, repair and maintenance projects within the city limits of Charlotte, NC. Work will involve mobilization, earthwork, drainage structures, storm drain pipe systems, channels, working over, under, near, and around existing private utilities, asphalt paving, concrete flatwork, and landscaping and any associated work required by the Engineer. Other work may include structural foundation protection, storm water pipe lining, storm water pipe joint and structure repair, water and sewer (relocations, installations and adjustments). Storm Water maintenance work may be located entirely within or a combination of the street right-of-way, private, residential and commercial properties. See section 1.28 – Scope of Work for additional details and information.

Collective Storm Drainage Improvement Project Series K

Collective Storm Drainage Improvement Project (SDIP) Series K contains three separate storm water infrastructure repair and improvement projects within the city limits of Charlotte, NC.  Work will involve mobilization, earthwork, drainage structures (standard and non-standard), storm drainpipe systems, working over, under, near, and around existing private utilities, asphalt paving, concrete flatwork, water and sewer (relocations, installations and adjustments), foundation protection and any other associated work required by the Engineer.

Beatties Ford Sidewalk Phase 1

This project will improve the curbs, driveway, sidewalks and ramps for Beatties Ford Road between Russell Avenue and Lasalle Street. Concrete shall be 6-inch Portland cement, asphalt shall be two-inch course and four-inch intermediate course. Gravel shall be six-inch incidental stone. Limits of proposed slopes are indicated in the plans. The contractor shall maintain erosion control devices in accordance with the appropriate city and state erosion and sediment control ordinances. Contractor shall sawcut existing asphalt and/or concrete surfaces prior to removal unless otherwise directed by the engineer. Project length is 0.281 miles.

CLT Center Storm Drainage Project

This project is located in a parking lot behind the CLT Center located at 5601 Wilkinson Boulevard in Charlotte, NC.  The purpose of the project is to install new pipe to contain and drain runoff from the building to an existing storm drainage system at the rear of the parking lot.  The work involves installation of reinforced concrete pipe, storm drainage structures, asphalt surface, and re-striping the parking lot within the construction corridor.

PCB Handling Service

In 2014, there were illicit discharges containing Polychlorinated Biphenyls (PCBs) to the collection systems conveying wastewater to the Mallard Creek Water Reclamation Facility (WRF) and to the McAlpine Creek Wastewater Management Facility (WWMF). The concentrations of PCBs found in various unit processes at these facilities were above the 50 parts per million (ppm) threshold and, as a result, they are considered contaminated per the Toxic Substance Control Act (TSCA). A project to decontaminate portions of the Mallard Creek WRF is in progress under a separate contract.  The scope of work for that project does not include all infrastructure within the facility or any portion of the collection system.

Charlotte Water identified the location where the contaminant was discharged to the Mallard Creek collection system and, as a result, has been able to delineate the limits of contaminated infrastructure which includes 8.7 miles of 24-inch or less piping and 181 manholes. The discharge point for McAlpine Creek, however, could not be located.

Charlotte Water is a nationally recognized award winning utility that serves the City of Charlotte, Mecklenburg County, and nearby towns.  Charlotte Water:

  • Has over 270,000 metered accounts serving over 1,000,000 people within 550 square miles.
  • Operates three drinking water plants treating 100,000,000 gallons/day.
  • Operates seven wastewater treatment plants collecting and treating 80,000,000 gallons/day.
  • Operates and maintains 4,000 miles of water pipe and 4,000 miles of sewer pipe.

McAlpine Creek WWMF is located in the Town of Pineville and is a 64 mgd capacity facility currently operating at 48 mgd average daily flow.  McAlpine Creek was originally constructed in 1964 and has gone through several expansions and improvements projects over the years.  McAlpine Creek is a chemical nutrient removal facility with septage receiving, centrifuge thickening and dewatering, anaerobic digestion, diurnal and storm flow equalization, a residuals management facility contract-operated by Synagro-WWT Inc., bypass flow from Irwin Creek, bypass flow and the solids from Sugar Creek, industrial loading from Mecklenburg County and flow from Union County.

 

Mallard Creek WRF is an ISO 14001 certified facility located in the northeast part of Charlotte with  rated capacity of 12 mgd currently operating at 9 mgd average daily flow.  Mallard Creek was originally constructed in 1979 and has gone through several expansions and improvements projects over the years.  Mallard Creek is a conventional activated sludge facility with a re-use pumping station, centrifuge thickening and dewatering, anaerobic digestion, and diurnal and flow equalization.

 

 

SCOPE

This section will provide a general description of the tasks required. This is not intended to be all-inclusive, nor is it guaranteed that all of the below tasks will be utilized.  A more defined Scope of Work will be developed during negotiation with the selected Service Provider.

 

Charlotte Water will issue task orders to the Service Provider for projects in various locations with unique scopes of work related to PCB handling.  Projects may happen concurrently or one at a time, and their duration may be short-term or long-term. The project scope may involve work on equipment, concrete structures, metal infrastructure, piping systems, filters, and soils and in various environments like confined spaces, open basins, buildings, and sewer right-of-ways. The Service Provider may be asked to provide services including but not limited to removal, handling, transportation, and/or proper disposal of all materials including PCB contaminated materials in accordance with the requirements of TSCA and other regulations. The Service Provider shall manage all aspects of the work including the work performed by subcontractors and provide all labor, materials, chemicals, supplies, temporary facilities, access provisions, permitting (transportation and disposal related), equipment, delivery and incidentals required for the execution of task orders.

 

The task order process will involve significant coordination with Charlotte Water, the Service Provider and subcontractors. The Service Provider can also expect to coordinate with other Charlotte Water contractors if the decontamination work is part of a larger project that Charlotte Water is executing.  Charlotte Water may require task orders be priced on a lump sum or time and materials basis depending on what is in the best interest of the City.

CHEMICAL GROUTING AND PIPE LINING

The objective of this RFP is to solicit proposals for chemical grouting and pipe lining services.

The company shall provide chemical grouting and cured in place pipe lining at various public and private locations as needed within the City of Charlotte.  The services included are but not limited to:

    • Chemical grouting, and cured in place pipe lining
      • Provide professional consultant service for best practices
      • Provide recommendation on the installation process
      • Provide recommendation during the design and installation phase of the project
      • Provide professional representation during the design and installation of the project
    • Installation process
      • Shall be able to install chemical grouting, and cured in place pipe lining
      • Shall be able to remove and replace
        • Storm drainage structures
        • Curb & gutter
        • Asphalt
        • Incidental work to complete the chemical grouting, and cured in place pipe lining

McDowell Creek Waste Water Treatment Plant Dewatering, Disposal and Cleaning

The project consists of removing and properly disposing of all materials currently stored in Digester No. 5 and cleaning Digester No. 5 located at McDowell Creek Waste Water Treatment Plant in Huntersville, NC. Material stored in the digester may have been in place for up to 15 years and includes but is not limited to: grit, digested bio-solids, water and rags.

The Company shall transport and dispose of the materials removed from the digester to an appropriately permitted, licensed, EPA Subtitle D landfill facility of the Company’s choice. Material removal, transportation and disposal shall be performed in accordance with all applicable local, state and federal laws.  If the material is deemed allowable for land application and Company has permit to land apply, then the material may be removed and land applied.

Siphon Cleaning Service

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.

Pipe Patch Services

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.