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Director's Office
Municipal Plaza Building
114 W. Commerce
San Antonio, Texas 78205
Main Line: (210) 207-8022
Fax: (210) 207-4406

Regional Storm Water Management Program

In 1997, the RSWMP was established in an effort to protect public health and safety by requiring development to mitigate increases in storm water runoff resulting from their development. The program allows three options in which developers may participate to assist in this mitigation. The options include construction of onsite detention facilities, participation in the construction of a mitigation project, or paying a fee in-lieu-of (FILO). Effective April 1, 2013, a new methodology for calculating the FILO fees based on land use and amount of impervious cover was approved and adopted by City Council per Ordinance 2013-01-31-0074.

The Storm Water Plan Review team reviews storm water development plans to ensure future construction projects do not adversely impact current drainage systems. The links below provide information on the new Regional Storm Water Management Participation Form with the various categories and fees to reflect the new FILO process, a Frequently Asked Questions (FAQ) document in an effort to address and clarify the program, flowcharts to guide the customer on the process and payment of the FILO fees and the Ordinance approving the new FILO fees. If there is a resource that would be helpful to you and it is not available, please let us know by contacting us at or by calling the Public Works Planning and Engineering Division at 210.207.8047.

Information at your Fingertips

Regional Storm Water Management Participation Form   Regional Storm Water Management Participation Form
Process Flowcharts   Process Flowcharts
Frequently Asked Questions (FAQ)   Frequently Asked Questions (FAQ)
Ordinance and Fee Schedule   Ordinance and Fee Schedule

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