Upon submission, all bids become the property of the agency and, except for purposes of evaluation, shall not be released or otherwise distributed until after the agency completes the evaluation and issues its notice of intent to award. Evaluation team members shall maintain confidentiality of information to ensure the integrity of the process. After award and distribution of award information or posting of such information electronically for public review, the bids, quotes, and proposals of all bidders shall be open to public inspection at the offices of the purchasing activity during normal office hours. Copies of documents subject to public disclosure will be made available upon request in accordance with purchasing activity policy. The purchasing activity assumes no responsibility for the confidentiality of bids, quotes or proposals after award. Any document(s) or information which the bidder believes is exempt from public disclosure per RCW 42.17.310 shall be clearly identified by bidder and placed in a separate envelope marked with bid number, bidder's name, and the words "proprietary data" along with a statement of the basis for such claim of exemption. The state's sole responsibility shall be limited to maintaining the above data in a secure area and to notify bidder of any requests for disclosure within a period of five years from date of award. Failure to so label such materials or failure to provide a timely response after notice of request for public disclosure has been given shall be deemed a waiver by the bidder of any claim that such materials are, in fact, so exempt.