Washington Revised Code Title 79. Public Lands § 79.140.080. Confirmation of sale

(a) No affidavit showing that the interest of the state in such a sale was injuriously affected by fraud or collusion, is filed with the department's Olympia office within ten days from the receipt of the report of the auctioneer conducting the sale;

(b) It appears from the report that the sale was fairly conducted, that the purchaser was the highest responsible bidder at the sale, and that the sale price is not less than the appraised value of the property sold;

(c) The department is satisfied that the material sold would not, upon being readvertised and offered for sale, sell for a substantially higher price; and

(d) The payment required by law to be made at the time of making the sale has been made, and that the best interests of the state are being served.