The City of Sugar Land is responsible for the operations and maintenance of the water and wastewater system which serves approximately 110,000 residents. This is accomplished through over 650 miles of water lines with 8,000 valves. There is also 550 miles of sanitary sewer mains with 15,000 manholes. Daily operations include preventative maintenance on the two systems in addition to making repairs.
The City maintains 8,000 water mainline valves. The primary function of these valves is to isolate sections of the system to make unforeseen repairs. Proper functioning valves are critical to our success. If a valve is broken or inaccessible, the staff has to utilize a valve farther from the repair site. This expands the number of citizens directly impacted by a repair. In addition to larger residential outages impacting the Sugar Land Way, malfunctioning valves can also impact commercial, industrial, and in worst cases, hospital water availability.
The adopted service level for water mainline valve preventive maintenance includes an inspection of each valve annually. The current condition of each valve is recorded in the GIS Collector Application. Based on the results of the FY21 condition assessment, there are approximately 5,200 valves in good working condition and an additional 3,000 that are in need of some form of maintenance. The estimated cost to complete all of these repairs is $758,000.00.
Prior to FY20, the annual Utility Operating Budget allocated funds to complete annual inspections but did not identify specific funding for making the needed repairs. As part of the FY20 budget process, the Public Works Department submitted a Sugar Land Way Request to allocate a portion of the Utility Operating Fund to focus on valve repair and maintenance. Staff requested funding to make a portion of the necessary repairs, and it was approved in FY20. The funding was also approved in the FY23 budget.
The adopted service level for manhole preventive maintenance includes inspecting half of the City’s manholes each year. The primary function of the wastewater manholes is an access point for the gravity lines carrying wastewater from a customer’s home or place of business to one of the City’s four (4) wastewater treatment plants. Manholes allow staff access into the collection system in order to addresses stoppages that cause wastewater overflows or backups and to perform regular maintenance as needed.
The current condition of each manhole is recorded in the GIS Collector Application. Based on the results of the FY20 and FY21 condition assessment, there are approximately 11,000 manholes in good working condition and an additional 4,000 that are in need of some form of maintenance. The estimated cost to complete all of these repairs is $1,500,000.00.
Prior to FY20, the annual Utility Operating Budget allocated funds to complete annual inspections but did not identify specific funding for making the needed repairs. As part of the FY20 budget process, the Public Works Department submitted a Sugar Land Way Request to allocate a portion of the Utility Operating Fund to focus on manhole repair and maintenance. Staff requested funding to make a portion of the necessary repairs, and it was approved in FY20. The funding was also approved in the FY23 budget.
Public Works staff developed a series of specifications for third party repairs to City manholes and mainline water valves. The City advertised for bids from area contractors to complete the work outlined above on September 21, 2022 and September 28, 2022. On October 6, 2022, bids from two contractors were received and opened. The bids included unit costs for manhole rehabilitation as well as mainline valve repairs or replacements.
After reviewing the submittals, staff determined the low bidder to be Inframark, LLC. Below is a breakdown of the bid items for the recommended contractor.
The initial contract term is for one year and will automatically renew for four additional years for a total contract cost of $1,298,215.00. Should the future year funding not be approved for any reason, the contract will terminate on the first day of the new fiscal year.
The contract is structured as a unit price contract, which enables the Public Works Department to award the contract based on the available budget and to only pay for the specific repairs needed. Funding for this contract is available through the Utility Operating Budget.
The Public Works Department recommends the authorization of a contract between the City of Sugar Land and Inframark, LLC in the amount of $259,643.00 for the repair and maintenance of City of Sugar Land Wastewater Manholes and Mainline Water Valves, which will have four renewal terms bringing the 5 year total to $1,298,215.00.