Doing Business with Sammamish Plateau Water and Sewer District

Sammamish Plateau Water and Sewer District procures products and services necessary for the District's operation. If you are interested in selling products or providing services to the District, the following information will help you learn how:

Shared Procurement Portal

The District is a partner in the Shared Procurement Portal (SPP) which consists of several public agencies in the greater Seattle area who've partnered together to create a regional website that consolidates procurement bidding opportunities, making it easy for government and businesses to work together. This website provides businesses a one-stop shop for seeking access to procurement opportunities via an online roster system Public Purchase. Businesses may join this portal, hosted by Public Purchase, by going to the SPP's Vendor Registration page.

Operating Supplies & Equipment

While the purchases of material, supplies and equipment priced over $2,500 do not require a formal competitive bid or public notice, the District may choose to solicit competitive price quotations, issue an Invitation for Bid (IFB). These purchases are typically solicited either through the District's online roster program Public Purchase or via targeted requests to suppliers. Purchases of material, supplies, and equipment priced $2,500 or less does not require a competitive process.


The District contracts for various types of services including maintenance, engineering and legal services. Depending on the estimated cost of the work and other considerations, the District may issue either a Request for Proposals (RFPs) or Request for Qualifications (RFQs). Per State and District policy, for certain types of professional services such as those classified as Architectural, Engineering & Surveying services the District may review, evaluate and select consultants based off their Statements of Qualifications (SOQ). Consultants who've registered for these kinds of services must upload an SOQ on the City's roster for viewing to be considered for work with the District.

Shared Procurement Portal

Public works include all work, construction, alteration, repair or improvement other than ordinary maintenance, executed at the cost of the agency. For public work projects under $300,000, the District may utilize their Small Public Works Roster (RCW 39.04.155) to solicit bids. To register on the small public works roster, go to Public Purchase and select Go To Register. For projects over $300,000, the District advertises in their local newspapers and posts on their website.

To view the District's current BIDs, RFP's and RFQ's, click on Bid Information and click“Bids, RFPs and RFQs”. In addition to posting solicitation information on this website, the District advertises larger projects in the Legal Notice section of the Seattle Times or the Daily Journal of Commerce.

Notifications about most solicitations are sent electronically to businesses registered on our District's online roster program Public Purchase. To register, go to the Vendor Registration page on this SPP website. This will take you to our online roster program Public Purchase where you can select the types of goods or services your business provides. The District uses NIGP codes to classify what types of goods or services to solicit.