Phase II

Smaller Municipalities

The JTF agencies are regulated under Phase I of the EPA's National Pollutant Discharge Elimination System (NPDES) Program storm water regulations. Phase I applies to municipalities with a population of 100,000 or greater. The Phase II storm water regulations cover smaller municipalities that manage storm water facilities that are located in urbanized areas as well as those that Texas designates.



Status of TCEQ Phase II Permit

TPDES General Permit TXR040000 (PDF) (Word) was issued on August 13, 2007, and authorizes the discharge of storm water to surface water in the state from small municipal separate storm sewer systems (MS4s). Small MS4 operators that choose to obtain authorization under this general permit must submit a storm water management program (SWMP) and a completed notice of intent (NOI) form to the Texas Commission on Environmental Quality (TCEQ) on or before February 11, 2008.

Do you know if you are a Phase II Community?

Operators of small MS4s should refer to the TCEQ map and to the EPA map of Urban Areas to determine if they will have to meet the requirements of the Phase II Texas Pollutant Discharge Elimination System (TPDES) permit.

EPA map

Support for Phase II Communities

JTF has developed programs in several areas that may be useful to local Phase II municipalities.

Public Education Program

The JTF Storm Water Management Public Education Program has a comprehensive program that helps residents understand storm water quality and how to protect it. Brochures, training videos, and outreach programs have been developed that may be used by Phase II Communities. Click on the following links for more information.



Additional public education materials

Construction Program

Construction brochures

Instructional video

This site brought to you by the Stormwater Management Joint Task Force:

Hilighted Links

EPA - Phase II Guidance

Only a select subset of small MS4s, referred to as regulated small MS4s, require an NPDES storm water permit

TCEQ - Phase II Guidance

The regulatory definition of an MS4 (40 CFR 122.26(b)(8)) is a conveyance or system of conveyances.

Regional Watershed Protection Partner Registration

Register to become a partner with Harris County