N.Y. County Law Section 251
County agency

The board of supervisors may appoint or establish an officer, board or body, or may designate an existing officer, board or body, or public authority which possesses the express power to act as such an agency, to act as a county water, water quality treatment, sewer, wastewater disposal, drainage, refuse or public inland lake protection and rehabilitation agency (hereinafter referred to in this article as the “agency”) having the powers hereinafter prescribed in sections two hundred fifty-two, two hundred fifty-three and two hundred fifty-four, and such other powers and duties as the board of supervisors may determine necessary to carry into effect the provisions of this article. Except in the case of a public authority, the agency may also be designated as the administrative head or body of any county district which may be established pursuant to the provisions of this article. All matters relating to the membership of such agency, including, but not limited to, numbers, method of selection, tenure, qualifications and compensation, shall be determined by the board of supervisors.

Source: Section 251 — County agency, https://www.­nysenate.­gov/legislation/laws/CNT/251 (updated Sep. 22, 2014; accessed Feb. 21, 2026).

250
Purpose 251
County agency 252
Powers of county agency 253
Preparation of maps and plans 253–A
Provision for excess sewer, drainage or water facilities 253–B
Amendment or modification of plans 254
Public hearing 255
Representation by municipalities and district 256
Establishment of a county district 256–A
Consolidation of Suffolk county sewer district number two Holbrook and Suffolk county sewer district number four - Birchwood North Shore 256–B
Suffolk county wastewater management district 257
Permissive referendum 258
Application to the department of audit and control 259
Recording and filing of determination 260
Review 261
Administration of the county district 262
Performance of the work 263
Powers 263–A
Powers with respect to lake protection and rehabilitation 264
Rules and regulations 265
Contracts 266
Water rates, water quality treatment, sewage, wastewater disposal and refuse collection charges and revenues 267
Expense of the improvement 268
Increase and improvement of facilities 269
Increase of maximum amount to be expended 270
Assessment of the cost 271
Alternative method of assessment 272
Taxation of district property 273
Contracts with public authorities for county water districts 274
Extension of the district 274–A
Consolidation of county districts by board of supervisors 274–B
Consolidation of the district and its extensions 275
Sale of water district facilities 276
Jurisdiction of other state agencies 277
Establishment of certain county sewer districts in Suffolk county 277–A
Conveyance or lease to the county of Westchester by a city, town or village in the county’s New Rochelle sanitary sewer district of sewer... 278
Definitions 279
Operation of certain collection and disposal facilities in Suffolk county 279–A
Acquisition of real property for future districts in Suffolk county 279–B
Agreements of county district 279–C
Certain agreements of a county sewer district in Orange county 279–D
Water districts in the county of Westchester
Green check means up to date. Up to date

Verified:
Feb. 21, 2026

Last modified:
Sep. 22, 2014

§ 251. Cnty. agency's source at nysenate​.gov

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