Solicitation Type: RFP
Category: Request for Proposals
Department: WRRD Operations
Issued by: Clean Water Services
Publish Date: Nov 7, 2023 12:00PM
Proposals Due Date: Nov 21, 2023 2:00PM (Pacific Standard Time) add to calendar
Status: closed
Posted: Nov 7, 2023


Clean Water Services (District) wishes to enter into a contract for Biosolids Land Application Services. Interested contractors must submit proposals. 

Copies of the Request for Proposals (RFP) can be downloaded from the District's Website at  


Pre-Proposal Conference

A pre-proposal conference will be held at District's Rock Creek Wastewater Treatment Plant located at 3235 S.E. River Road, Hillsboro, Oregon 97123 on Tuesday, November 14, 2023 at 11:00 a.m.  Attendance is encouraged for firms planning to submit a proposal.  The objective of the pre-proposal conference is to provide an informal meeting to discuss the contents of the RFP in detail and clarify any questions potential proposers may have.  In addition, this conference will give proposers an opportunity to meet key District staff.

Pre-Proposal Conference Date Nov 14, 2023 11:00AM (Pacific Standard Time) add to calendar
Pre-Proposal Conference Registration

Before you can register your attendance, you will need to register your vendor profile with Clean Water Services using the "Register" button above.

Vendor Questions and Answers

The Question and Answer Period is currently closed.

When the question and answer period is open, vendors may submit their questions on this solicitation to be answered by Clean Water Services.

For Questions or Additional Information, Contact:

Name: Christina Gangle

Solicitation Change History

Changes to This Listing:

The prebid conference information has changed.
Nov 8, 2023

About Clean Water Services

About Us

We are a water resources management utility that combines science and nature to clean water and return it to the Tualatin River, so it can be used again.

We work in partnership with others to safeguard the river’s health and vitality, ensure the economic success of our region, and protect public health for over 600,000 residents and businesses in urban Washington County.

Our History

In the 50 years since Clean Water Services was formed, the community's investment has paid off for the Tualatin River, our community and our ratepayers. The river is healthier today than it has been in generations, valued for its natural beauty, recreational opportunities and wildlife habitat.

Our Solicitations

To access our solicitation documents and learn about our upcoming solicitations, please visit our Open Solicitations page at