N.Y. County Law § 220-A
The board of supervisors or county legislature, shall have the power to designate a water quality management agency for the purposes of water quality management program oversight. Such agency may, in the discretion of the board of supervisors or county legislature, be an existing county official, county agency, a group of agencies or officials or other county entity, or may be a newly created agency. Such a water quality management agency shall be responsible for providing oversight of all water quality programs and related activities in the county. This includes a continuing assessment of the impact of point and nonpoint sources of pollution on the waters of the county, and the appropriateness of the monitoring and administrative activities related thereto. The water quality management agency shall have the responsibility to review and coordinate all activities of county officers, agencies, departments or other entities of county government which have a substantial impact on or interest in water quality management. The agency shall prepare an annual report, which shall be submitted to the county executive, the board of supervisors or county legislature, the New York state department of environmental conservation, and where appropriate to a regional planning agency. This report shall identify needs of the county and document progress in improving water quality management performance. This report shall include but not be limited to the following:
N.Y. CountyLaw § 220-A