He said it was true that his agency had awarded contracts worth less than the amount authorized by the city.
In the last two years, however, the agency awarded about 190 construction contracts of $500,000 or less, worth about $25 million annually.
The agency this week awarded the contract for the new system, the largest one in the company's history.
The agency had already awarded the Department of Education $8.9 million for the mental health needs of students who were directly affected by the attack.
Last year, the agency awarded $24.4 million in such contracts to 451 groups.
The results of two previous reviews were nullified when agencies not awarded the contract protested.
Earlier this month the agency awarded the first contracts for the space station to four companies.
The agency awarded more than $246 million this fiscal year.
The agency just awarded the Pilot another $350,000 to create a revolving loan fund to actually begin cleaning up the sites.
One is already being installed, and yesterday, the agency awarded a contract for the other one.