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Phase_I_MS4_Boundaries08_09 (FeatureServer)

View In:   Map Viewer

Service Description: Polygon features identifying California metropolitan areas that are issued a Phase I Municipal Stormwater Permit, which are symbolized in the "Phase I MS4 Boundaries" map layer. This layer is informational only, and is intended to provide the user context in regards to Phase I Permits.

Service ItemId: 6c45bd00ad534839b262d2933babb61d

Has Versioned Data: false

Max Record Count: 2000

Supported query Formats: JSON

Supports applyEdits with GlobalIds: False

Supports Shared Templates: True

All Layers and Tables

Layers:

Description:

The Municipal Storm Water Permitting Program regulates storm water discharges from municipal separate storm sewer systems (MS4s). Municipal or urban areas commonly include large impervious surfaces which contribute to an increase in stormwater runoff. Under Phase I, which started in 1990, the Regional Water Quality Control Boards have adopted National Pollutant Discharge Elimination System General Permit (NPDES) storm water permits for medium (serving between 100,000 and 250,000 people) and large (serving 250,000 people) municipalities. For more information please reference the State Water Resources Control Board Phase I MS4 Permits web page at https://www.waterboards.ca.gov/water_issues/programs/stormwater/phase_i_municipal.html.



Copyright Text: California State Water Resources Control Board

Spatial Reference: 102100 (3857)

Initial Extent:
Full Extent:
Units: esriMeters

Child Resources:   Info   SharedTemplates

Supported Operations:   Query   ConvertFormat   Get Estimates