with amec geomatrix to provide environmental oversight services of the treasure island and yerba buena islandequire approval by the san francisco board of supervisors. this amendment was approved at its april 19, 2012 meeting. amec geomatrix was initially selected by the department of public works through process as part of the pool as needed consultant to provide environmental and remediation activities. in 2003, the authority authorized execution of the contract for an amount not to exceed $5 million to provide services related to monitoring the navies of environmental remediation activities at treasure island. the contract has been amended nine times and currently has a budget of $1,799,000. the contract consists of both oversight of the navy's remediation program as well as the -- as well as assisting the authority and property negotiations with the navy. this is an increase of $238,400 from the previously authorized amount. amec geomatrix is expected to work on items related to oversight of the navy's remediation program at a cost of approximately $20,000 per month. the contract will con