The San Antonio River Authority (River Authority) is a full-service wastewater utility provider within its district. The River Authority recognizes that communities are finding it increasingly difficult to meet their water and wastewater needs.

As a result, the River Authority offers the following services to partnering communities:

  • Commercial and residential wastewater services
  • Construction, operation and maintenance of centralized water distribution and wastewater collection systems
  • Emergency and routine water and wastewater treatment systems
  • Quality training programs
  • Development and implementation of re-use water systems

By partnering with the River Authority, communities in Bexar, Wilson, Karnes and Goliad counties get the assistance they need in meeting both their current and future needs, such as developing alternative infrastructure, making treatment facility improvements and interpreting and complying with changing, and increasingly stringent, rules and regulations.

The River Authority Utilities owns, operates and maintains the wastewater plants and collection systems. The operators and staff continuously attend related accredited sewer and water courses to improve their job performance and maintain or upgrade their state certification status. The plants’ operators are certified by Texas Commission on Environmental Quality (TCEQ).

Wastewater Billing Information

The San Antonio River Authority (River Authority) evaluates its sewer fees annually to ensure the continued success and service of the wastewater utility enterprise. The River Authority Board of Directors adopts the sewer fees in June and changes typically take effect on July 1. As a result, retail customers will see the new rates beginning with their July bill. Monthly billing services are provided on behalf of the River Authority by local water purveyors.

Sewer Billing Frequently Asked Questions

The River Authority establishes annual wastewater charges for service based on customer winter averages, operations and maintenance costs, capital projects, and debt service. The calculation for the monthly rate is the following:

(Winter Average x Variable Rate) / 1,000 gallons + Fixed Rate

View current sewer rates.

Winter Average

The winter average is the computed average of the monthly metered water consumption for three consecutive billing periods that fall between November 15 and March 15. Since water is mostly used indoors during the cooler months, and likely ends up processed at a River Authority treatment plant through the sewer system, this serves as the basis for winter averaging. Customers who do not have a winter record of water usage established are billed a system average. Since the River Authority contracts with multiple water purveyors for billing services, please refer to your individual bill to see your billing cycle.

Winter Average Bill Example
Example billing cycle.

Variable Rate

The variable rate is calculated by taking the operating and maintenance cost to transport, treat, and dispose of wastewater and dividing it by the projected number of gallons of wastewater treated. Operating costs include personnel, supplies, contracted services, and regulatory assessment fees. The variable rate is applied to every 1,000 gallons.

Fixed Rate

The minimum fixed rate is calculated by spreading the capital costs across all customers. This rate recovers capital equipment costs, expenditures for capital improvement projects, and annual debt repayment. The debt repayment covers the annual payment for monies borrowed for major capital improvement projects such as wastewater treatment plant expansions. View more information on the River Authority’s debt obligations.

For all other users, not single-family residential, the customer is charged per 1,000 gallons of metered water consumption each month. The rate charged recovers the customers share of operations and maintenance costs, capital projects, and debt service.

Retail wastewater service consists of collection and treatment services provided to the ultimate customer for compensation. Wholesale wastewater service consists of collection and treatment services on behalf of another entity who is not the ultimate consumer of the services.

The River Authority provides retail wastewater service to portions of eastern/northeast Bexar County, the City of San Antonio, and the City of Converse. Wholesale wastewater service is provided to the cities of Converse, Live Oak, Schertz, Universal City, and Green Valley Special Utility District.

Please contact the River Authority Utilities Department at (210) 302-4200 for sewer billing questions.

Local water purveyors bill River Authority customers on behalf of the River Authority. For non-sewer related questions please contact your water purveyor. See contact information below for the individual water purveyors.

Retail Customers

Wholesale Customers

Utilities Development Resources

SARA New Development Service Application Process
For more information regarding development with the River Authority service area please call 210-302-4200 or email your questions to UtilitiesDevelopment@sariverauthority.org.

Permitting Portal

San Antonio River Authority is utilizing an online permitting portal, SmartGov, as the primary permitting tool. This portal is used for all development projects within the River Authority’s CCN. Submit new developments for review, track on-going progress, schedule construction inspections, and submit a request for new tie in inspection.

Utilities Development Advisory Committee

The purpose of the Utilities Development Advisory Committee (UDAC) is to promote sustainable development within the water and wastewater service areas of the San Antonio River Authority (River Authority). As required by Title 12, Subtitle C of the Texas Local Government Code, the UDAC will advise and assist the River Authority with the adoption, implementation, review, and updates of its land use assumptions, capital improvements plan (CIP), impact fees, and other development-related fees and charges.

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2024 Meetings

  • February 6, 2024 – CIP Update

  • April 2, 2024 – General Rates and Fees

  • October 1, 2024 – Technical Specifications & Development Update



The UDAC will be co-chaired by two individuals appointed by the River Authority Board of Directors (Board) upon recommendation of the River Authority Operations Committee (Operations Committee). The appointed co-chairs will serve to ensure that processes are observed to include, but are not limited to, consensus, roll-call for decisions, and meeting management norms. One appointed co-chair will represent ratepayers, and the other will represent real estate, development, or building industries. The co-chairs will confer with River Authority facilitators regularly before the meetings. These positions will require additional time commitments than the general committee membership.

Committee Membership

The committee will have a maximum of 11 members, but no less than 5. No less than 40 percent of the UDAC membership must be representatives of the real estate, development, or building industries who are not employees or officials of a political subdivision or government entity. The UDAC must have at least three ratepayers representing the River Authority’s Salitrillo and SARA Wastewater systems. In accordance with the criteria listed above, and to ensure stakeholder group diversity, the members of the UDAC will include representatives from the following stakeholder groups:


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Connection Fee Information


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San Pedro Creek: Rains from the Heavens

The Rains from the Heavens water wall at San Pedro Creek will be shut off due to maintenance Tuesday, June 18th. There will also be some road closures that day, so please be mindful if you are in this area. We apologize for the inconvenience.

Acequia Trail Notice

The Acequia trail will have heavy traffic near MROC starting May 22nd until further notice. The SAWS Acequia project will be bringing in crews to work on the lift station site and across the street. There will have flaggers to stop traffic, please use caution. 

SASPAMCO Paddling Trail

The SASPAMCO paddling trail is open from River Crossing Park to Helton Nature Park. *Please Note: Paddling Trail from Helton Nature Park to HWY 97 is still closed due to blockages. 

River Reach Newsletter and Blog Signup

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