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Part 859: Saw Mill River Drainage Basin

(Statutory authority: Environmental Conservation Law, § 17-0301)

Contents:

Sec.

§859.1 Adopting Order

Pursuant to article 17 of the Environmental Conservation Law, after proper study and following public hearings held on due notice, the Department of Environmental Conservation hereby adopts and assigns the following classifications and standards of quality and purity to all surface waters within the designated drainage basin of the Saw Mill River within Westchester County as hereinafter described.

§859.2 Definitions and Conditions

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

(a) Item no. In table I of this Part an item number is assigned to each specifically designated waters or portions thereof.

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

(1) The numbering of 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 watersheds of the State. The primary waters of a drainage basin, such as rivers or large lakes are usually referred to by name or an abbreviation. Tributaries of primary waters are consecutively numbered progressing upstream from the mouth. Ponds and lakes are numbered consecutively as they are encountered, such numbers being preceded by the letter P. Tributaries of such lakes and 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) This system was applied to the basin under consideration by the Conservation Department in its biological survey of the Saw Mill River watershed 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 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) The system as applied to the identification of waters in the Saw Mill River drainage basin may be illustrated as follows:

Identification of Waters in the Saw Mill River Drainage Basin
Waters Index Number Name Explanation
H-4 portion as described Saw Mill River 4th trib. of Hudson River, enters from east near Yonkers (Map R-24a).
H-4-24 portion as described Trib. of Saw Mill River, known as Nannyhagen Brook 24th trib. of Saw Mill River, which enters from northeast approximately 0.6 mile west of Thornwood (Map Q-24d).
H-4-24-1 Trib. of Nannyhagen Brook Trib. 1 enters trib. 24 from east (Map Q-24d).
H-4-24-P19c and P19e Twin Lakes Ponds or lakes located at headwaters of Nannyhagen Brook (Map Q-24b).

(c) The abbreviations trib., tribs., subtrib. and subtribs. indicating tributary, tributaries, subtributary and subtributaries, respectively, 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 tributaries 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 tributaries or subtributaries are mentioned after the waters index number, the specifically designated waters shall include the stream, lake, pond or other body of surface water referenced by such waters index number and all tributaries and subtributaries thereof, which are shown on the reference maps, unless exceptions are expressly stated.

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

(e) Description as appearing in table I of this Part shall mean a brief indication as to the location of the specifically designated waters. Entries may include designations of segments or sections of waters to which a particular assignment of a class and standards shall apply. Entries may also include any useful information pertinent to the classification and standards.

(f) Map ref. no. as appearing in table I of this Part means map reference number and indicates one or more of the following numbered maps reproduced herein completely, or in part, on which the specifically designated waters and their index numbers are shown. The following maps were produced from original maps which may be procured through the Washington Distribution Section, U.S. Geological Survey (USGS).

Map Ref. No. Quadrangle Name Published By Edition
Map 1 Yonkers, N.Y. (R-24a) USGS 1943
Map 1 Mount Vernon, N.Y. (R-24b) USGS 1943
Map 2,3 White Plains, N.Y. (Q-24d) USGS 1938
Map 3 Ossining, N.Y. (Q-24b) USGS 1943

(g) Class as appearing in table I, and denoted by the letters SB, A, B, C or D opposite each specifically designated waters, shall mean class SB, A, B, C or D, as the case may be, as set forth in Part 701, supra.

(h) Standards as appearing in table I, and denoted by the letters SB, A, B, C or D, opposite each specifically designated waters shall mean the standards of quality and purity established for class SB, A, B, C or D, or as the case may be, as set forth in Part 701, supra. The symbol (T) appearing after any standard 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 standard 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.

(i) The term trout as used in this Part means any fish in the following genera: Coregonus, Oncorhynchus, Prosopium, Salmo, Salvelinus , and Thymallus.

(j) All streams or other bodies of water which appear as lines to indicate natural waters on the reference maps herein, and which are not specifically designated in table I of this Part, shall be assigned the same classes and standards of quality and purity as the specifically designated waters to which they are directly tributary.

(k) All streams or other bodies of water which are not shown on the reference maps herein shall be assigned to class D, as set forth in Part 701, supra , except that any continuous flowing natural stream which is not shown on the reference maps shall have the same classification and assigned standards as the waters to which it is directly tributary.

(l) The Saw Mill River drainage basin shall be deemed to include the following areas: all land and water areas, the natural surface water drainage from which is directly or indirectly tributary to the Saw Mill River.

§859.3 Assigned Classifications and Standards of Quality and Purity

The classifications and standards of quality and purity which are hereby assigned to all surface waters within the Saw Mill River drainage basin are as set forth in table I of this Part.

§859.4 Table I

Table I
Classifications and Standards of Quality and Purity Which Are Assigned to All Surface Waters Within the Saw Mill River Drainage Basin, Westchester County, New York
Item No. Waters Index Number Name Description Map Ref. No. Class Standards
1 H-4 portion as described Saw Mill River Enters Hudson River in Yonkers approximately 1.5 miles north of Westchester-Bronx County line. Mouth to 1100 feet above mouth (tidal section). MAP 1 SB SB
2 H-4 portion as described Saw Mill River From 1100 feet above mouth to Yonkers water supply dam, located approximately 1.3 miles south of line between Town of Greenburgh and City of Yonkers. MAP 1 C C
3 H-4 portion as described including P12 Saw Mill River From Yonkers water supply dam to inlet of P 12, which is located approximately 6.0 miles above water supply dam and 1.5 miles southeast of Irvington. MAP 1, MAP 2 A A
4 H-4 portion as described including P 18a and P 21a Saw Mill River From inlet of P 12 to source. MAP 2,MAP 3 B B(T)
5 H-4-4 and tribs., 5a, 7, 7a, 7b and 8 including P 9, P 9a and P 11a Tribs. of Saw Mill River Enter Saw Mill River from west, east, northwest and southeast approximately 0.4 mile above Yonkers water supply dam and in Ardsley approximately 0.9 mile southwest of Woodlands. MAP 1,MAP 2 A A
6 H-4-9a, 10, including P 12a, P 12b, P 12c and P 12d Tribs. of Saw Mill River Enter Saw Mill River from north and south approximately 1.4 and 1.2 miles, respectively, southwest of Elmsford. MAP 2 C C
7 H-4-11 and trib. including P 13, P 13a and P 13d Rum Brook Enters Saw Mill River from east approximately 1.0 mile southwest of Elmsford. MAP 2 C C
8 H-4-11a, 12 Tribs. of Saw Mill River Enter Saw Mill River from west and east in Elmsford, approximately 0.3 mile southwest and 0.4 mile northeast, respectively, of Route 119. MAP 2 C C
9 H-4-13 portion as described Trib. of Saw Mill River Enters Saw Mill River from northeast approximately 0.7 mile northeast of Route 119. Mouth to trib. 2, which is located approximately 0.9 mile southwest of Westchester Penitentiary. MAP 2 C C(T)
10 H-4-13 portion as described and 13-1, 2 and trib. including P 13b and P 13c Trib. of Saw Mill River From trib. 2 to source. MAP 2 C C
11 H-4-17 including P 16 Trib. of Saw Mill River Enter Saw Mill River from northwest approximately 1.3 miles west of Westchester Penitentiary. MAP 2 C C
12 H-4-17-P 15a, P 15b Tarrytown reservoirs Headwaters of trib. 17, located approximately 1.0 mile southwest of Pocantico Hills. MAP 2 A A
13 H-4-18 Trib. of Saw Mill River Enters Saw Mill River from southeast approximately 0.8 mile northwest of Grasslands Hospital. MAP 2 C C(T)
14 H-4-19, 20 and trib., 21 including P 18b Tribs. of Saw Mill River Tribs. 20 and 21 enter Saw Mill River from southeast and northwest 0.9 mile northwest of Grasslands Hospital and Hawthorne. MAP 2, MAP 3 C C
15 H-4-24 portion as described Nannyhagen Brook Enters Saw Mill River from northeast approximately 0.6 mile west of Thornwood. Mouth to trib. 2, which is approximately 0.5 mile northwest of Sherman Park. MAP 3 C C(T)
16 H-4-24 portion as described including P 19b Nannyhagen Brook From trib. 2 to source. MAP 3 C C
17 4-24-1 Trib. of Nannyhagen Brook Enters Nannyhagen Brook from east approximately 0.5 mile west of Thornwood. MAP 3 C C(T)
18 H-4-24-1-2, 2a including P 19a Subtribs. of Nannyhagen Brook Enter trib. 1 of Nannyhagen Brook from south and northeast approximately 0.5 and 0.4 mile, respectively, southwest of Thornwood. MAP 3 C C
19 H-4-24-1a, 1b, 2, 3, 4, 5, 6 including P 19d and P 19f Tribs. of Nannyhagen Brook Enter Nannyhagen Brook from north, south, east and northeast between trib. 1 and source. MAP 3 C C
20 H-4-24-P 19c and P 19e Twin Lakes Headwaters of Nannyhagen Brook, located approximately 1.0 mile northeast of Sherman Park. MAP 3 B B
21 H-4-27, 28, 29 and tribs., 31 and tribs., 32 and tribs., 34 including P 20, P 20a and P 22a Tribs. of Saw Mill River Enter Saw Mill River from southwest, southeast, northeast, west and north between Route 117 in Pleasantville and source. MAP 3 C C
22 H-4-29-P 20b and tribs. Tertia Pond Headwaters of Trib. 29, located approximately 1.7 miles northeast of Sherman Park. MAP 3 B B

§859.5 Map A

TABULAR OR GRAPHIC MATERIAL SET FORTH AT THIS POINT IS NOT DISPLAYABLE

§859.6 Maps 1 -- 3

TABULAR OR GRAPHIC MATERIAL SET FORTH AT THIS POINT IS NOT DISPLAYABLE