Parent Layer: Environmental Features

Name: East of Hudson Watershed Boundary

Display Field: REGION

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: Official NYC East-of-Hudson and West-of-Hudson outer watershed boundaries delineated from 2009 LiDAR-derived 1-meter Digital Elevation Model (DEM). This representation of the NYC watershed replaces earlier versions that were based on lower-resolution information and is to be used for any NYCDEP BWS regulatory or programmatic mapping. These data are not a substitute for on-site inspection or survey, however, in cases where a location that is close to the border of this GIS representation is questioned. FALL 2020 NOTE: In Fall 2020, two changes were made to the official NYC watershed and basin boundaries as follows: 1) The Diverting Reservoir boundary in EOH was updated, which in-turn required a change in the basin and subbasin boundary there. 2) Based on the results of a watershed boundary field inspection by REP and GIS Staff, as per the watershed delineation SOP, a very small portion of the outer Cannonsville Basin boundary in WOH, T. Delhi required updating, which in-turn required a change in the basin and subbasin boundary there. This resulted in a loss of .5 acres in the WOH watershed and the Cannonsville Basin. These changes have been reflected in this basin-derived dataset. NOTE: This layer has been clipped to the Westchester County boundary (2022)

Service Item Id: cd8e755bcc334414a9ff0431f0e95174

Copyright Text: Original data (NYC outer-watershed boundary and 8-digit HUC basins) developed under NYCDEP contract CAT-393 by RACNE. QA edits developed in-house by NYCDEP BWS GIS. This data packaging is owned by the New York City Department of Environmental Protection, Bureau of Water Supply, 2013.

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Supported Query Formats: JSON, geoJSON, PBF

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Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 662764.540913034
YMin: 812272.37905287
XMax: 759294.299535584
YMax: 923826.1371034241
Spatial Reference: 102715  (2260)

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Supported Operations:   Query   Query Attachments   Generate Renderer   Return Updates

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