On-Call Environmental Science Services

Agency: City of Seattle
State: Washington
Type of Government: State & Local
NAICS Category:
  • 541620 - Environmental Consulting Services
  • 541690 - Other Scientific and Technical Consulting Services
Posted Date: Mar 10, 2026
Due Date: Apr 3, 2026
Solicitation No: 26-031-S
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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

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+1 206-686-8357,,604764401# United States, Seattle
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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
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