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MarineCadastre/CleanWaterAct (MapServer)

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View Footprint In:   ArcGIS Online Map Viewer

Service Description: This map service represents geographic terms used within the Clean Water Act (CWA). The CWA establishes the basic structure for regulating the addition of pollutants (discharges) into waters of the United States, a three mile territorial sea, a 12 mile contiguous zone, and the ocean. The goal of the CWA is to restore and maintain the chemical, physical, and biological integrity of the Nation’s waters. This data includes two component boundaries, which delineate the seaward extent of various parts of the CWA. The boundary of a three mile territorial sea and 12 mile contiguous zone are relevant to application of various discharge standards associated with vessels or other floating craft, which vary depending on operational status. As referenced within the CWA, these two boundaries are based on the 1958 Convention on the Territorial Sea and the Contiguous Zone, and not the contemporary extent of these respective boundaries. While the Exclusive Economic Zone (EEZ) is not specified with the CWA, it is denoted here for illustrative purposes. When investigating geo-regulatory boundaries near the boundary edges, users should consult the most up-to-date applicable jurisdictional boundaries from all respective authoritative sources. If you plan to ingest this service into your own application and would like to be informed about planned and unplanned service outages or changes to existing services, please register for our Data Services Newsletter. For additional information, please contact the NOAA Office for Coastal Management (

Map Name: Layers


All Layers and Tables

Dynamic Legend

Dynamic All Layers

Layers: Description:

Copyright Text: NOAA Office for Coastal Management, Charleston,SC

Spatial Reference: 102100  (3857)

Single Fused Map Cache: true

Tile Info: Initial Extent: Full Extent: Units: esriMeters


Document Info: Supports Dynamic Layers: true

MaxRecordCount: 10000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON

Min Scale: 5.91657527591555E8

Max Scale: 18055.954822

Supports Datum Transformation: true

Child Resources:   Info   Dynamic Layer

Supported Operations:   Export Map   Identify   QueryDomains   QueryLegends   Find   Return Updates