Small MS4 General Permit, TPDES Permit No. TXR040000, was issued on January 24, 2019. It authorizes the discharge of stormwater to surface water in the state from small municipal separate storm sewer systems (MS4s). This is the actual State of Texas permit the City of Azle operates under.
For specific information on the permit requirements, please refer to the following:
TXR0400000 Permit
Fact Sheet
Response to Comment