Project Information

Bid Title

On-Call Environmental Science Services

Issuing Agency

City of Seattle

Location

Washington

Published Date

Mar 10, 2026

Closing Date

Apr 3, 2026

Government Level

State & Local

Status

Closed

Ref. #

26-031-S

Original Source

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Bid Documents

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Project Description

Project ID: 26-031-S

Title: On-Call Environmental Science Services

Addenda: 0

Release Date: 3/10/2026

Due Date: 4/3/2026

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On-Call Environmental Science Services

Request For Qualification

Seattle Public Utilities

Project ID: 26-031-S

Release Date: Tuesday, March 10, 2026

· Due Date: Friday, April 3, 2026 1:00pm

Posted Tuesday, March 10, 2026 8:00am

All dates & times in Pacific Time

Draft Response Events RSVP No Bid23 days, 18 hours, 55 minutes

Post Information

Posted At:Tue, Mar 10, 2026 8:00 AM
Sealed Bid Process:No
Private Bid:No

Overview

Summary

The City of Seattle is seeking qualifications for On-Call Environmental Science Services . Qualifications are due no later than 1:00 pm on Friday, April 3, 2026 . All questions are to be submitted through the e-procurement portal at https://procurement.opengov.com/portal/seattle no later than 5:00 pm on Friday, March 20, 2026 .

Background

Seattle Public Utilities (SPU) is seeking qualified firms to provide on‑call professional environmental science services, including environmental field investigations, technical analyses, and recommendations that support preliminary engineering, design development, and construction phase compliance. The work enables SPU to identify, characterize, and manage subsurface contamination through coordinated environmental investigations, analytical evaluations, and construction phase oversight. It supports SPU in maintaining safe, compliant, and on-schedule delivery of infrastructure projects. SPU anticipates awarding one (1) on‑call contract with an estimated value of $750,000 - $1,000,000.

Timeline

Solicitation Release:

March 10, 2026

Pre-Submittal Conference (Non-Mandatory):

March 17, 2026, 10:00am

Microsoft Teams Meeting

https://teams.microsoft.com/meet/29928331985079?p=hhHJfCJUJyzi0lLt1y

Meeting ID: 299 283 319 850 79
Passcode: aw3Z9Kx3

Dial in by phone
+1 206-686-8357,,604764401# United States, Seattle
Find a local number
Phone conference ID: 604 764 401#

Deadline for Questions:

March 20, 2026, 5:00pm

Response Submission Deadline:

April 3, 2026, 1:00pm

Interviews if Conducted (estimated):

Week of 4/27/26

Commodity Codes

• NAICS 541620Environmental Consulting Services
• NAICS 541690Other Scientific and Technical Consulting Services

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