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Watershed Wise: Rebate

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The San Antonio River Authority Watershed Wise Rebate Program

*Application materials have been updated. Please use the latest version found on this page.

This program rebates construction of on-site stormwater best management practices (BMPs) to either new construction or a retrofit of existing property. The rebate program is available in Bexar, Wilson, Karnes, and Goliad counties. BMPs must be designed using the San Antonio River Authority’s San Antonio River Basin Low Impact Development Technical Guidance Manual (SARB LID Technical Manual). In order to apply, projects need to have a minimum reimbursement request of $15,000 and a maximum of $100,000.  Unit volume rebate amount is dependent on the BMP type.

Applications for 2020 will be accepted during  Fall of 2019.

In order to meet high demand the application process has been modified.

Applications will be evaluated based on location, treatment percentage and impact on receiving body.  Preference will be given to projects that are in high priority load areas, treat a higher percentage of the target volume and impact receiving bodies.  It is the intention of the San Antonio River Authority to award funds throughout our four county district.

We recommend you meet to discuss your application before the application is submitted.

Map of High Impact Areas


Map of High Impact Areas


Rebate Details

  • Rebate limits per project: Minimum $15,000, Maximum $100,000
  • No limit on number of BMPs per project
  • Limit of one application per project
  • Rebate only for construction of BMPs according to SARB LID Technical Manual
  • BMPs must use design process from SARB LID Technical Manual
  • Rebate is proportional to runoff volume from 1.5” storm (1.18″ storm for redevelopment)
  • Rebate is calculated, based on unit rates (refer to Unit Volume Rebate and Unit Area Rebate)
  • Open to public, private or environmental non-profit projects in Bexar, Wilson, Karnes or Goliad counties
  • Private residences and required permitted BMPs are ineligible
  • Application must meet requirement for % treated volume (60% of the runoff from all new impervious areas)
  • Rebate Agreement which covers operations and maintenance is required to be signed by landowner
  • Rebate funds are issued after two-step verification: Approval in writing of Construction Documents and Project Completion Inspection
  • The San Antonio River Authority reserves the right to correct rebate calculation errors if they occur
  • All applicants will be contacted to coordinate project timeline and design details
  • Projects will be assessed, rebate amounts calculated and awarded at the end of the application period
  • Project must be complete by listed deadline
  • Rebate is payable to landowner only


The application consists of three parts.  All three parts must be submitted in order for your application to be complete, and reviewed by SARA.

  1. Watershed Wise Rebate Application
  2. Project Map and Cross-section Details (See “Checklist” section below)
  3. SARA Stormwater BMP Rebate Worksheet

Application, project map, cross-section details and worksheet must be submitted to jaalfs@sara-tx.org by the rebate deadline. Include “SARA Watershed Wise Rebate” in subject line.

Project Map and Cross-section Details Checklist

  • Research LID and BMPs from the SARB LID Technical Guidance Manual
  • Use the SARB LID Technical Manual to develop an LID-based site plan (refer to pg.11 of manual)
  • Use the SARB LID Technical Manual to select, size and place LID BMPs
  • Develop a project map including the following:
    1. Property boundary and total area
    2. New impervious areas (eg. parking lot, office building roof, hardscape) and area of each
    3. Proposed drainage watersheds and area of each
    4. Existing and proposed contours with elevation
    5. Hydrologic Soil Group Boundaries and labels
    6. Proposed LID BMPs
    7. Flowpaths to BMPs
  • Draw a cross-section with dimensions for each volume based BMP in your design to show construction details.
  • It is the responsibility of the applicant to communicate the BMP design intent, show calculations for target volume and treatment volume and show how BMP design details support the BMP footprint. Only complete designs will be accepted and reviewed.


  • At least 60% of the runoff from all new impervious areas are treated by BMPs.
  • Owner must sign Rebate Agreement.

Eligibility, Types of Construction, and Pricing Limits
Rebate Calculation

Opportunities for Additional Rebates

By applying for our rebate, you may also be eligible to apply for a San Antonio Water System (SAWS) rebate.  For residential, please click here. For commercial, please click here.