Design and Construction Standards - Tualatin Valley Water District

Water System Design and Construction Standards Section 1d. All drawings submitted for review and approval shall be on sheets with a size ofeither 22 inches by 34 inches or 24 inches by 36 inches.e. Minimum text height shall be 0.10 inch.f. Plans shall include a cover sheet with the following information:1. Project name.2. Owner’s name, address, phone number, fax number, and email address.3. Project Engineer’s name, address, phone number, fax number, and email address.4. Contractor’s name, address, phone number, fax number, and email address.5. Project location (Vicinity Map)g. Submit plan review fee and three sets of subdivision drawings to the DistrictEngineer for review and approval: one full set and two partial sets of drawingsheets showing only the water system improvements.1.4 Approval of Engineering Plansa. The District Engineer’s approval of the sealed plans is required prior to the startof any construction. Plan approvals are only valid for six months from the date ofapproval.b. Any changes to approved plans initiated by the Project Engineer or as a result offield conditions must be resubmitted and approved by the District Engineer.c. The Developer or their agent shall obtain all required permits.d. Any property to be developed that is not currently within the District boundaryshall be annexed into the District prior to extending water service to the site,unless an extra-territorial water line extension has been approved.1.5 Construction Inspectiona. The Developer’s Contractor shall contact the Inspector at least 48 hours prior toany water system construction to request a pre-construction conference.b. The District Engineer and Inspector shall have access to the project at all times inorder to make routine visual inspections of the work.c. No work shall be buried before it is inspected and accepted by the Inspector.Potholing of buried water lines may be required at the Developer's expense toallow verification that the installation meets the requirements of the Standards.d. Should any inspection reveal that construction is not proceeding according to theapproved plans and/or District Standards, the District Engineer or Inspector mayorder all work stopped and all defective work removed and replaced. If a revisionis necessary, the Project Engineer shall provide the District Engineer with revisedplans for review and approval before work resumes.e. Work by Developer’s Contractor outside District’s normal business hours shallrequire a minimum of 48 hours notice to Inspector. Overtime costs for Districtinspection will be paid by the Contractor.TVWD Water System Standards June 2012 Page 1-3