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RALEIGH, N.C. (AP) -- An audit says a North Carolina State University professor took Outer Banks trips using public funds but could not provide documents showing the travel was work-related.

State Auditor Beth Wood's office said Thursday associate professor Stacy Nelson spent nearly $3,400 from state grant funds on two trips in summer 2011. He and his family stayed once at the Sanderling Inn near Duck.

The audit says Nelson went to the coast to validate data from plant and water samples but did not keep paperwork with those results after they were recorded. University policy required records be maintained at least three years.

N.C. State said the policy is being re-emphasized and grant funds will be reimbursed for the travel.

Nelson said results were produced from the trips taken.

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