Please note the City of Lathrop does not sell hard copies of the plans and specifications. Bidders must register and purchase a complete set of plans and specifications with Stockton Blue in order to be an eligible bidder. The fee to register on the Plan Holder’s List is $25.00 (non-refundable). Please visit the Stockton Blue website to purchase the contract documents, click on “Enter Public Planroom” to locate the project. Stockton Blue locations may be contacted to order plans. The phone number for the Stockton Blue Stockton office location is (209) 464-8724. Stockton Blue is responsible for maintaining the project plan holders list and addenda information. Please visit the Stockton Blue website on a regular basis for the most up-to-date project information.