Service Description: TxDOT MS4 boundaries - Municipal Separate Storm Sewer System (MS4) permit requirements were implemented in two phases: Phase I for large and medium MS4s and Phase II for regulated small MS4s.

Service ItemId: ca8ffc42e1754c6a8a2359132389ae2d

Has Versioned Data: false

Max Record Count: 1000

Supported query Formats: JSON

Supports applyEdits with GlobalIds: False

Supports Shared Templates: True

All Layers and Tables

Layers:

• MS4Areas (0)

Description:

Phase I MS4 Requirements

If you operate an MS4 which serves or is located in an incorporated place or county with a population of 100,000 or greater (based on the 1990 U.S. Census), then you operate a regulated Phase I MS4 and you must apply for an individual permit*.

 *Please note that all Phase I MS4s are already permitted and there are no new Phase I designations.

Phase II MS4 Requirements

If you operate a small MS4:

Located in an urbanized area (UA), as defined by the Bureau of the Census (note that MS4s may be regulated based on the 2000 or the 2010 Census UAs), or located outside of a UA and are brought into the program on a case-by-case basis (i.e., “designated”) by the TCEQ,  then you operate a regulated small MS4 and must obtain authorization or apply for a waiver.

Copyright Text: TxDOT, Environmental Affairs

Spatial Reference: 4326 (4326)

Initial Extent:

XMin: -121.316261441167
YMin: 12.9460602078381
XMax: -85.7556652309609
YMax: 48.9489523908083
Spatial Reference: 4326 (4326)

Full Extent:

XMin: -106.643961933396
YMin: 25.8593661733332
XMax: -93.7154093971622
YMax: 35.323567368753
Spatial Reference: 4326 (4326)

Units: esriDecimalDegrees

Child Resources:   Info   SharedTemplates

Supported Operations:   Query   ConvertFormat   Get Estimates   Create Replica