At its recent meeting in Cromwell, the committee received a copy of Contact's annual compliance report, required as part of the conditions to continue operating the hydro dams.
It was also told about an amenity plan being prepared for the shores of Lake Roxburgh as one of the conditions of gaining consent to raise the operating level of the lake.
The committee agreed to ask Central Otago District Council staff to look closely at the reports and prepare a summary of them, flagging any issues they had.
"I need to be reassured that Contact are doing what they're supposed to be doing," committee member Tony Lepper said.
Contact environmental adviser Daniel Druce said Mr Lepper could be assured Contact was meeting all its requirements.
Alexandra resident Jolyon Manning, who attended the meeting, said it was important for there to be transparency in any dealings between Contact and local and regional authorities.
He said the Contact reports should be peer-reviewed.
As part of its consents issued in 2005 to continue operating the Roxburgh and Clyde hydro dams, Contact was required to reduce the volume of sediment in Lake Roxburgh and in the Manuherikia River to help mitigate the risk of flooding during high flows.
The committee was told by the Lake Dunstan Education and enforcement officer, Shayne Hitchcock, that the entrance to Bannockburn inlet had narrowed because of the build-up of silt in the lake.
Several boats had run aground there this summer, he said.
Committee members discussed whether the silt build-up should be addressed in the amenity plan for the lake.
Mr Druce said reducing sediment in the Manuherikia River, as part of the hydro consent conditions, would begin next week at Galloway.
The work would take about two months, and 50,000 cubic metres of gravel would be removed.
