1. (b) Waters index number as appearing in table I shall mean that number or abbreviation assigned to any designated waters or portions thereof for the purpose of identification.

   1. (1) The numbering or index system used to identify specific waters of New York State was adapted from that used by the New York State Conservation Department in its biological survey series of reports on the watersheds of the State. The primary waters of a drainage basin, such as rivers or large lakes, are usually referred to by name or abbreviation. Tributaries of primary waters are consecutively numbered progressing upstream from the mouth. Ponds and lakes are numbered consecutively as they are encountered, such number being preceded by the letter P. Tributaries of such lakes or ponds are numbered consecutively as they enter, progressing clockwise around the lake or pond from its outlet or mouth. When isolated lakes and ponds are referenced by a waters index number, it is merely for convenience of their identification and location within a subdrainage basin, and it is not necessarily indicative of their being tributary to any waters to which no surface connection is shown on the reference maps.
   2. (2) This system was applied to the basin under consideration by the Conservation Department in its biological survey of the Mohawk-Hudson watershed in 1934 and has been closely followed in connection with the identification of the waters with the following exceptions: some of the stream numbers do not run consecutively due to the omission of streams originally shown on older maps employed by the Conservation Department at the time of its 1934 survey, but not shown on newer maps reproduced herein. Conversely, a few streams not shown on the older maps but appearing on the newer maps are designated by the letters a, b, c, etc.

   3. (3) The system as applied to the identification of waters in the Schoharie Creek drainage basin may be illustrated as follows:

      Water Index Number	Name	Explanation
      H	Hudson River	Primary Waters.
      H-240	Mohawk River	The 240th tributary of the Hudson River numbered consecutively upstream from the mouth.
      H-240-82	Scholarie Creek	The 82nd tributary of the Mohawk River numbered consecutively upstream from the mouth.
      H-240-82-63	Cobleskill Creek	The 63rd tributary of Schoharie Creek numbered consecutively upsteam from the mouth.
      H 240-82-63-9-P 583	Cobleskill Reservoir	The 583rd pond, lake or reservoir encountered in the biological survey area of the Mohawk River-Upper Hudson River watershed.
      H-240-82-63-9-P 583-2	Unnamed stream	The 2nd tributary of Cobleskill Reservoir numbered in a clockwise direction from the mouth.

2. (c) The abbreviations trib., tribs., subtrib. and subtribs. indicating tributary, tributaries, subtributary and subtributaries shall mean any stream, lake, pond, or other body of surface water which flows into any other stream, lake, pond, or other body of surface water. Where no tributary, tributaries, subtributary or subtributaries are mentioned, the specifically designated waters shall include only the stream, lake, pond, or other body of surface water referenced by such waters index number; where tributary, tributaries, subtributary or subtributaries are mentioned after the waters index number, the specifically designated waters shall include the stream, lake, pond, or body of surface water referenced by such waters index number and all tributaries and subtributaries thereof, which are shown on the reference maps, excluding numbered ponds, unless exceptions are expressly stated.

3. (d) Name as appearing in table I shall mean the name by which the specifically designated waters are known and which name may appear on the reference maps. In cases of specifically designated waters which have no name, the named waters to which the unnamed waters are tributary are identified as far as possible.

   (e) Description.

   The column headed “Description” contains designations or sections of waters to which a particular assignment of a class and standards shall apply. Also included in this column is any useful information pertinent to the classification or standards.

4. (f) Map Ref. No. as appearing in table I, means map reference number and indicates one or more of the following numbered maps reproduced herein completely, or in part in section 879.9, infra, on which the specifically designated waters and their index numbers are shown.

   1. (1) The following maps were produced from original maps which may be procured through the Washington Distribution Section, Geological Survey, Silver Spring, Maryland.

      Map Ref. No.	Name of quadrangle	Published by	Edition
      J-21sw	Sprout Brook	U.S. Geological Survey	1943
      J-21se	Sharon Springs	U.S. Geological Survey	1943
      J-22ne	Tribes Hill	U.S. Geological Survey	1944
      J-22sw	Carlisle	Corps of Engineers, U.S. Army	1942
      J-22se	Esperance	U.S. Geological Survey	1943
      J-23nw	Amsterdam	U.S. Geological Survey	1954
      J-23sw	Duanesburg	U.S. Geological Survey	1954
      K-21nw	South Valley	U.S. Geological Survey	1943
      K-21ne	Richmondville	U.S. Geological Survey	1943
      K-21sw	Charlotteville	U.S. Geological Survey	1943
      K-21se	Summit	U.S. Geological Survey	1944
      K-22nw	Cobleskill	U.S. Geological Survey	1943
      K-22ne	Schoharie	U.S. Geological Survey	1943
      K-22sw	Breakabeen	U.S. Geological Survey	1943
      K-22se	Middleburg	U.S. Geological Survey	1944
      K-23nw	Gallupville	U.S. Geological Survey	1944
      K-23ne	Altamont	U.S. Geological Survey	1944
      K-23sw	Rensselaerville	Corps of Engineers, U.S. Army	1944
      K-23se	Westerlo	U.S. Geological Survey	1944
      L-21ne	Stamford	U.S. Geological Survey	1945
      L-21se	Roxbury	U.S. Geological Survey	1943
      L-22nw	Gilboa	Corps of Engineers, U.S. Army	1943
      L-22ne	Livingstonville	Corps of Engineers, U.S. Army	1943
      L-22sw	Prattsville	U.S. Geological Survey	1945
      L-22se	Ashland	Corps of Engineers, U.S. Army	1943
      L-23nw	Durham	Corps of Engineers, U.S. Army	1943
      L-23sw	Hensonville	Corps of Engineers, U.S. Army	1943
      L-23se	Freehold	Corps of Engineers, U.S. Army	1943
      M-22nw	West Kill	Corps of Engineers, U.S. Army	1943
      M-22ne	Lexington	Corps of Engineers, U.S. Army	1943
      M-23nw	Hunter	Corps of Engineers, U.S. Army	1943
      M-23ne	Kaaterskill	Corps of Engineers, U.S. Army	1943
      M-23sw	Bearsville	Corps of Engineers, U.S. Army	1943
      M-23se	Plattekill	Corps of Engineers, U.S. Army	1943

5. (g) Class as appearing in table I, and denoted by the letters AA, A, B or C opposite each specifically designated waters, shall mean class AA, A, B or C as the case may be, as set forth in Part 701, supra.
6. (h) Standards as appearing in table I, and denoted by the letters AA, A, B or C opposite each specifically designated waters, shall mean the quality standards established for class AA, A, B or C as the case may be, as set forth in Part 701, supra. The symbol (T) appearing after any class designation shall mean that the designated waters are trout waters and that the dissolved oxygen specification for trout waters shall apply thereto. The symbol (TS) after any class designation shall mean that the designated waters are suitable for trout spawning, and that the dissolved oxygen specification for trout spawning waters shall apply thereto.
7. (i) The term trout as used in this Part means any fish in the following genera: “Coregonus”, “Oncorhynchus”, “Prosopium”, “Salmo”, “Salvelinus” and “Thymallus”.

The several terms, words, or phrases hereinafter mentioned shall be construed as follows:

(a) Item No.

In table I an item number is assigned to each specifically designated waters or portions thereof.