How to bid on Site Assessment Consulting Services for CDPHE

What the agency is buying

The Colorado Department of Public Health and Environment (CDPHE) is seeking qualified individuals and firms to be added to a pre-qualified list. These vendors will provide environmental site assessment consulting services in Denver, Colorado. The agency estimates needing about six site assessments per year, with work assigned from the list as needed.

Key dates and deadlines

This Request for Proposal (RFP) was published on July 16, 2026, and was amended on the same date. The deadline for submitting your proposal is August 10, 2026, at 4:00 PM ET. All responses must be submitted by this time.

Who this opportunity suits

This opportunity is suitable for individuals and firms with expertise in environmental site assessment. If your business provides consulting services in this category, particularly within the Denver, CO area, this pre-qualified list could lead to ongoing work with CDPHE.

How to respond

To access the solicitation, you need to visit the Colorado VSS (CORE) Vendor Self Service portal. Once there, open "View Published Solicitations" and search for the solicitation number RFP-FAAA-2026000268-3. You will find the full posting and a list of seven documents.

To download documents or submit your response, you must register a free vendor account on the portal. Follow the instructions within the solicitation to submit your proposal before the August 10, 2026, deadline. Kristi Gamble is the sole point of contact for this solicitation.

Tips for preparing a competitive response

When responding to a request for a pre-qualified list, clearly highlight your firm's specific experience and qualifications in environmental site assessments. Provide concrete examples of past projects that demonstrate your capabilities and successful outcomes.

Ensure your proposal addresses all requirements outlined in the solicitation documents. Pay close attention to any instructions regarding format, content, and submission. A well-organized and thorough response will help you stand out. Since work will be assigned as needed, emphasize your capacity to respond promptly and efficiently to new assessment requests.