RFP-Biosolids and Residuals Hauling Services

Location:	Washington
Posted:	Feb 20, 2026
Due:	Mar 2, 2026
Agency:	King County
Type of Government:	State & Local
Category:	V - Transportation, Travel and Relocation Services Z - Maintenance, Repair or Alteration of Real Property
Solicitation No:	KC001580
Publication URL:	To access bid details, please log in.

Abstract: G&S Solicitation KC001580,2

Title

Solicitation Type

G&S Solicitation

Status

Active

Buyer

Stephanie Wong

SWong@kingcounty.gov

Synopsis

King County is soliciting proposals from interested and qualified suppliers to provide hauling services for biosolids, grit, screenings, and liquid wastewater residuals.

To attend the optional site visits on February 9, 2026, at 9:00 a.m. PT (South Treatment Plant) and February 11, 2026, at 2:00 p.m. PT (Loop Vehicle Maintenance Facility), see information in the RFP document.

Addendum Description

Addendum 2 has been issued. Suppliers must acknowledge all addenda before submitting a response. If a supplier has already submitted a response, they MUST log into the E-Procurement Supplier Portal, acknowledge the addendum, and resubmit.

Attachments

KC001580-addendum 2-documents.zip (257.58 KB)

KC001580-rfp-documents.zip (10.56 MB)

KC001580-addendum 1-documents.zip (924.8 KB)


Open Date	1/30/26 07:00:00 AM
Close Date	3/2/26 02:00:59 PM
Posting Date	2/20/26

Additional Information


KC Solicitation NAICS Code(s)	484110;484121;484122;484220;484230
Small Business Requirements Apply?	Yes


Department	NATURAL RESOURCES AND PARKS
Division	WASTEWATER TREATMENT

O K

Daily notification on new contract opportunities

With GovernmentContracts, you can:

Find more opportunities and win more business
Receive daily alerts for all new bid opportunities
Get contract opportunities matched to your business

ONE WEEK FREE TRIAL

RFP-Biosolids and Residuals Hauling Services

See also