If construction does not both start within five years of the effective date of the site certification agreement and thereupon continue in a reasonably uninterrupted fashion toward project completion, then at least ninety days prior to the end of the five-year period, the certificate holder shall report to the council its intention to proceed or not to proceed with the project. If the certificate holder intends to proceed with the project, the certificate holder shall submit a report to the council describing:

(1) The nature and degree of any changes to the following since the effective date of the site certification agreement:

(a) Project design;

(b) Statements and information in the application;

(c) Statements and information in project-related environmental documents; and

(d) Project-related environmental conditions.

(2) Whether any new information or changed conditions indicate the existence of probable significant adverse environmental impacts that were not covered in any project-related environmental documents, including, but not limited to, those prepared under chapter 43.21C RCW.

(3) Suggested changes, modification, or amendments to the site certification agreement and/or any regulatory permits.