Water Treatment Plant Lime Sludge Lagoon – Engineering Consulting Services

City of Aurora, Illinois is soliciting Statements of Qualifications for engineering consulting services on the Water Treatment Plant Lime Sludge Lagoon Concrete Lining project, with SOQ responses due August 26, 2026 at 11:00 a.m.—a hard deadline only five days away.

The scope encompasses environmental assessments, permitting, Portland cement concrete lagoon design, preparation of bid documents, and full-time construction observation and quality assurance services for three clay-lined lagoons (#1, #3, and #4) at the Aurora Water Treatment Plant, 1111 Aurora Ave., Aurora, IL 60505. Physical construction is phased: Lagoon #4 from June 1, 2027 to July 31, 2027; Lagoon #3 in 2028; and Lagoon #1 in 2029, all pending budget availability. The City will provide a 2023 topographic survey and perform any additional surveying required by the selected consultant.

This is a Qualification-Based Selection (QBS) with contract structure as Time and Material, Not to Exceed, subject to negotiation with the top-ranked consultant and City Council approval. The City may conduct interviews with the top 2–3 respondents during the first or second week of September, followed by final selection and negotiation. The selected consultant must maintain General Liability Insurance of $1 million per occurrence and $2 million general aggregate, Auto Liability Insurance of $1 million combined single limit, and Umbrella excess liability of $2 million per occurrence.

Responses must be submitted electronically through the City's OpenGov procurement portal as a single PDF not exceeding 10 pages, including cover letter, list of relevant projects, key staff resumes, technical approach, detailed schedule, and three professional references. Questions were due August 12, 2026. The City reserves the right to reject any or all SOQs and cancel the process at any time.