Any interested party, as defined in RCW 39.12.010(4) may file with the department a complaint alleging a violation of the prevailing wage laws. The complaint must describe the alleged violation and identify the alleged violator. It would aid the department's investigation if the complaint also specifies:

(1) The name and address of the complainant;

(2) The address of the alleged violator;

(3) The name and address of the public agency that awarded the contract;

(4) The date the public agency accepted the completed public work (if applicable);

(5) The specific rates of wages paid by the violator and the rates that allegedly should be paid;

(6) The exact amount of prevailing wages that are alleged to remain unpaid; and

(7) The date the bids were due on the public works project.