The Suffolk County Office of Central Procurement oversees the County's procurement processes. The Office helps facilitate each County department's mission.Suffolk County Water Authority solicits bids for many different goods and services. To view our Procurement Contact Policy please click, Review Policy. Bids and proposals must be received and time stamped in the Purchasing Division office prior to the date and time specified in the solicitation document. Bidders must submit one original copy of their bids. The original must be sealed and clearly marked "2019 ANNUAL PROCUREMENT CONTRACT". What do I need to do to be added to the City's Vendor Database? Complete a City of Suffolk Vendor Registration Form and submit to the Purchasing Division. Require a Suffolk professional or student proficient with a screen reader, to test the usability and accessibility of the product.