The following are the responsibilities and criteria for project construction monitoring and final approval:

(1) County engineer responsibilities. Associated with responsibility for project plan approval and supervision of the project work, the county engineer shall provide inspection to assure that all project work is conducted and completed according to the construction plans and specifications.

(2) Ecology's responsibilities. The authorized representative of the department of ecology has the right to enter at all reasonable times in or upon any property, public or private, for the purpose of monitoring and inspecting the project work as necessary to assure compliance with the terms of the appropriate written agreement. The authorized representative of the department of ecology is the contract officer and must be identified in the written agreement. The county engineer will be informed before any inspection for purposes of construction monitoring and guidance by any representative of ecology other than the contract officer. Representatives of ecology may observe the construction process without prior notification of the county engineer.

(3) Final inspection and approval. Upon completion of the work, the county engineer, along with representatives from ecology and the applicant, shall make a final detailed inspection. Results of the final inspection must be displayed in a written report prepared by ecology and, when appropriate, on "as built" construction plans. "As built" construction plans must be submitted to ecology within thirty days after the final project inspection.