# El Paso Water Ionwave #RFQ56-26 Addendum 1

Public-Private Partnership for Renewable Natural Gas Facility at El Paso Wastewater Plant

**Posted:** September 20, 2026
**Respond By:** November 25, 2026
**Identifier:** RFQ56-26 Addendum 1
**NAICS:** 221118, 237130, 541330, 541690, 237120

This opportunity seeks private partners for a long-term Public-Private Partnership (P3) to develop a Renewable Natural Gas (RNG) facility at the Roberto R. Bustamante Wastewater Treatment Plant in El Paso, Texas.
- Government Buyer:
  - El Paso Water Utilities Public Service Board (EPWater), a component of the City of El Paso
- Project Scope:
  - Design, construct, operate, maintain, finance, and market an RNG facility converting biogas from anaerobic digesters into pipeline-quality RNG
  - Integration with ONE Gas for pipeline injection; compliance with ONE Gas biomethane specifications
  - Full project lifecycle responsibility: design, permitting, construction, operations, maintenance, site security, financing, and marketing/sale of RNG and environmental credits (e.g., RINs)
- Procurement Process:
  - Two-step process: initial Request for Qualifications (RFQ) to shortlist up to three firms, followed by a Request for Proposal (RFP)
- Notable Requirements:
  - Compliance with Texas Commission on Environmental Quality (TCEQ) and other regulatory bodies
  - Adherence to ONE Gas biomethane quality standards
  - Demonstrated experience with municipal RNG projects and public-private partnerships
  - Project financing and revenue-sharing frameworks
- OEMs and Vendors:
  - No specific OEMs mandated; ONE Gas is the designated pipeline interconnection partner
- Products/Services Requested:
  - Comprehensive services for RNG facility design, construction, operation, maintenance, security, financing, and marketing
  - No specific part numbers or quantities; focus is on turnkey project delivery
- Opportunity is open to firms with proven technical, financial, and operational capacity in RNG projects, especially those with public-private collaboration experience.

### Description

El Paso Water (EPWater) is soliciting qualifications for a Renewable Natural Gas (RNG) Facility project at the Roberto R. Bustamante Wastewater Treatment Plant (RRBWWTP) in El Paso, Texas. The project involves designing, constructing, operating, and maintaining an RNG system to convert biogas from anaerobic digestion into pipeline-quality RNG for injection into the regional natural gas network. The procurement is a two-step process: an RFQ to pre-qualify firms based on experience and qualifications, followed by an RFP for detailed proposals. The contract term is anticipated to be fifteen years, and the project will be delivered via a Public Private Partnership (P3) model.

[View original listing](https://epwater.ionwave.net/PublicDetail.aspx?bidID=406&SourceType=1)