PHILADELPHIA (CBS) – Following the deadly building collapse in Center City on Wednesday, the Department of Licenses and Inspections says it is now performing inspections of multiple private construction and demolition sites throughout the city.

Additionally, L&I says it inspected all four construction and demolition sites connected to Griffin Campbell Construction, who was the contractor at the collapse site at 2136-38 Market Street.

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L&I says it uncovered construction violations at two sites located at 1300 Walnut Street and 320 Butler Street.

At 1300 Walnut, the violations related to electrical and plumbing work being performed without proper permits and work not being the same as the work detailed on the building permit. The violations at 320 Butler related to work exceeding the scope of the interior demolition permit.

L&I says its suspended work at both sites.

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Two other sites contracted by Griffin Campbell were free of violations.

L&I adds that there have been approximately 300 open demolition permits issued by the Department since 2009, approximately 100 of which were issued in 2013.

As of June 6, 2013, L&I has inspected only 10% of these.

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