Site work for a municipal facility in Lewisville, Texas. Completed plans call for site work for a municipal facility.

The City Of Farmers Branch (City) Hereby Issues This Request For Proposal (RFP). The City Seeks Proposals From Firms Interested In And Qualified To Develop And Implement A Landfill Gas To Energy Project At The City's Camelot Landfill (Landfill). The City Intends To Enter Into A Lease Agreement And A Separate Gas Purchase Agreement (also Referred To Herein As Contracts Or Agreements) For This Project. The project will be at the Landfill located in Denton County, at 580 Huffines Road, Lewisville, Texas. The selected Proposer shall be responsible for the overall project development, including sales agreement negotiations, permitting, design, construction, financing, ownership, long-term operations, storage, transportation, and management services. The deadline to ask questions is 7/18/2025 6:00 PM CST Landfill Overview The City of Farmers Branch (City) is in Dallas County, Texas. It is an inner-ring suburb of Dallas and part of the Dallas-Fort Worth Metroplex. As of the 2020 Census, its population was 35,991. The city has a City Manager-Council form of government, which was incorporated in 1946. The City of Farmers Branch owns Camelot Landfill. The facility contains 459.76 acres, of which 236.8 acres are permitted for waste disposal. The total waste disposal capacity of the landfill is 53,200,000 cubic yards. Based on the 2024 Annual Report submitted to the Texas Commission on Environmental Quality (TCEQ), 965,234 tons of waste were disposed of in the previous year, leaving 28,809,584 cubic yards of disposal airspace. The total amount of landfill gas flared in the previous year was 902,361,665 cubic feet. This does not include the amount sold to the current landfill gas-to-energy developer. The facility is operated by a contractor, Camelot Landfill, TX LLP, a wholly owned subsidiary of Republic Services. The landfill operator also operates the landfill gas collection system, including the wellfield. Currently, there are 177 wells installed across the landfill. The wellfield completely covers the constructed waste disposal area. Currently, the City has a contract with a developer, Waste Management Renewable Energy, to purchase landfill gas to produce electricity. The agreement's contract term is nearing completion. Primacy of Landfill Operations The Proposer shall conduct all operations so as not to interfere with the Landfill operations and not to interfere with the Landfill's ability to comply with its permits or with applicable state or federal laws or regulations. Existing and Future LFG Facilities As previously mentioned, the Landfill has an active landfill gas collection system. The location for the GCCS components is depicted in Figure 1 - Existing Site Plan, in 4.3.1 Existing Site Layout - Unit #1. The Proposer will have the same sales point as the current developer. If the Proposer wants a different sales point and the City and the Proposer agree on the location, the cost to construct the necessary infrastructure will be the responsibility of the Proposer. The City/Proposer Responsibilities are outlined in detail in _____ City / Proposer Responsibilities. 18 LFGCS Operation and Maintenance Camelot Landfill TX, LP operates and maintains the landfill gas collection system, including the wellfield, blowers, and flare. The current flare is sized for 5,500 Standard Cubic Feet per Minute (SCFM) and can handle all landfill gas generated by current and future waste disposal activities. LFG Resource Waste Acceptance Data includes a conceptual mathematical model estimate of the LFG generation from the Landfill. The model was generated using the site's waste acceptance data, which is also included in Appendix B. The projected generation in 2021 is 1115 scfm. The average flow rate for 2020 was 1050 scfm. The City and its employees will not contractually guarantee, nor will any of its agents, advisors, or consultants, either implied or explicitly, that the quantities of LFG generated by the model, in fact, represent the quantities of LFG physically extracted from the Landfill. Before submitting a proposal, each Proposer may, at its own expense, request to make any additional examinations, investigations, tests or studies and obtain additional information and data that may affect the cost, progress, performance or delivery of the project described in this RFP and which the Proposer deems necessary to prepare the proposal for performing and furnishing the project described in this RFP in accordance with time, price and other terms and conditions of the Agreement. The City will grant all such requests that it deems reasonable. All results from additional examinations, investigations, tests, or studies shall be marked 'CONFIDENTIAL' and shared with the City; these results will not be shared with any other Proposer. Laboratory Analyses of LFG Samples Proposer shall notify the City in writing of their interest in obtaining a gas sample(s) for analysis. The Proposer shall be responsible for providing suitable containers, collecting the samples, and any shipping, hauling, and analysis costs. The City and its employees, agents, advisors, or consultants do not contractually guarantee that any collected sample is representative of long-term landfill gas production conditions or otherwise represents the quality of LFG. The Proposer shall coordinate with the City at least three (3) workdays before visiting the Landfill to collect LFG sample(s). LFG sample collection efforts by the Proposer shall not damage or otherwise impair the existing GCCS. All results from LFG examinations, investigations, tests, or studies by Proposer shall be marked "CONFIDENTIAL" and shared with the City; these results will not be shared with any other Proposer. Scope of Work Project Design, Build, Own, and Operate Service Description The following is a description of the requested Project. Generally, the Proposer will be responsible for the delivery of the following services: _ Design, permit, construct, operate, and maintain the LFGTE Facility. _ Receive LFG from the Landfill under a LFG Purchase Price Schedule established with the City; process the extracted LFG for sale as either direct medium-BTU gas sales, direct high 19 BTU gas sales, onsite electrical generation for sale to an electrical utility, or other option presented by the Proposer and accepted by the City in accordance with all applicable local, state, and federal regulations for the term of the Agreement; negotiate sales agreements; permit, design, construct, finance, own, and operate and maintain the required LFGTE Facilities and provide all other required LFGTE management services as described in this RFP and the Agreements; be responsible for all Project operations, including the disposal of any by-products generated through the delivery of the Agreements. Itemized responsibilities for the Proposer and the City, which will be finalized as part of the finalized Agreement, are included in Appendix B. _ Purchase LFG from the City at a predetermined price on an energy unit basis per MMBTU. The MMBTUs will be determined by either a mutually acceptable BTU meter or by calculation using LFG flow into the facility and the corresponding methane concentration as determined by a mutually acceptable flow meter and methane analysis. Site Access and Restrictions The Proposer's access to the site will be made through the main entrance to the Landfill. The Landfill is authorized to accept waste Monday through Friday between 3:00 AM and 7:30 PM and on Saturdays from 4:00 AM to 3:00 PM. Normal operating hours for waste acceptance from the public are between 7:00 AM and 4:45 PM Monday through Friday and between 7:00 AM and 12:00 PM Saturday. Acceptable work hours for the Proposer are between 6:00 AM and 6:00 PM, Sunday through Saturday. The Proposer shall coordinate and make special arrangements with the City should it wish to start or complete its workday before or after 6:00 AM and 6:00 PM Sunday-Saturday. Property Lease The Project facilities will be located on a parcel of land estimated to be approximately 0.5 acres or less, leased from the City within the boundaries of the Landfill. The Proposer will lease this property from the City under a "Property Lease" agreed upon and included as part of the Agreement. The City expects that access to the Project facilities will be via the Landfill main entrance/access road. The Proposer shall describe the access, size, and/or location of land that their proposed facility will require. Project Facilities Interface Point of sale will be made at the meter/monitoring manifold located upstream of the LFGTE Facility equipment and parallel to the control flare. The Proposer may be responsible for maintaining 6 a 6 inch Water Column on the wellfield as measured by the Pressure Instrument Transducer (PIT) located at the inlet to the control flare. The City blowers will remain off during normal operations of the LFGTE Facility. The proposer must ensure that if the vacuum to the field were to drop off, the City's own flare facility blower would start and begin flaring LFG through the flare. The Proposer will pay the City for all LFG collected, regardless of whether flared or for beneficial use. The City and the Developer will enter into a Gas Purchase Agreement for the purchase of the LFG and a Site Lease Agreement for any of the Developer's equipment that may be located at the landfill site. 20 During negotiations, the Developer can suggest GCCS improvements. In addition to the already planned expansion of the GCCS to increase the availability of LFG, operational changes to improve LFG quality will be considered. The Developer will be responsible for obtaining environmental permits for their equipment and processes. E. Information regarding the landfill is provided in the Appendices, including: _ Appendix B: Site Map _ Appendix C: Projected future LFG recovery _ Appendix D: Summary of 2024 Emissions F. Landfill Gas Availability - The city does not guarantee the quantity of LFG recovery. Submittal of a proposal constitutes acknowledgement that the quantity of LFG collected may be different from that shown in this RFP and can be affected by the operation of the GCCS and regulatory requirements. G. Appendix B: Site Map Appendix B contains drawings of the GCCS. Recent wellfield and flare station operating data are contained in Appendix D. The City will continue to manage/oversee the operation of the GCCS as directed by our Engineering Consultant to meet operational needs and permit conditions. The existing GCCS includes a 5,500 scfm candlestick flare. H. Landfill Gas Characteristics-No laboratory analysis has been completed. The city currently tracks flow, methane content, oxygen, and carbon dioxide levels, as well as temperature and pressure, as provided in Appendix D. I. Project Site-The site map in Appendix A shows potential locations for the developer's LFGE facilities. J. Points of Interface with the City - At Camelot Landfill, it can be assumed that LFG will be available at the discharge of the City's blowers.