Wastewater Treatment Plants

The San Antonio River Authority (SARA) began providing wastewater utility services in 1966. Today, SARA has six permitted active wastewater treatment plants and one permitted but not operational, wastewater facility.

The below waste water treatment plants have a combined capacity of over 10 million gallons per day (MGD).

  • Martinez I- Upper Martinez
  • Martinez II
  • Martinez III
  • Martinez IV
  • First Responders Academy
  • Salatrilllo
  • US 181

Upper Martinez

Martinez I-Upper Martinez Wastewater Treatment Plant (WWTP)

Average Daily Flow 1.640 MGD

Permitted Flow 2.21 MGD

Number of Customers  Served

  • Approximately 9,800 customers

Location of Customers Served

  • Woodlake, Ventura, and Camelot subdivisions located in northeast Bexar County

San Antonio River Authority’s (SARA’s) Utilities Department maintains the collection system, which consists of:

  • 1,737 manholes
  • Foster Road Lift Station
  • 117.75 miles of collection line

Note: The Upper Martinez Treatment Plant and service system, operations and maintenance, facilities expansions and system administration costs are totally funded by connection fees, interest income on utilities funds, hay sales, and uniform user rate charges.

Martinez II

Martinez II Wastewater Treatment Plant (WWTP)

Average Daily Flow 2.103 MGD

Permitted Flow 3.50 MGD

Number of Customers  Served

  • Approximately 5,100 customers

Location of Customers Served

  • Woodlake and Ventura subdivisions located in northeast Bexar County

San Antonio River Authority’s (SARA’s) Utilities Department maintains the collection system, which consists of:

  • 901 manholes
  • 48.3 miles of collection line

Martinez III

Martinez III Wastewater Treatment Plant (WWTP)

Average Daily Flow 0.060 MGD

Permitted Flow 0.150 MGD

Number of Customers  Served

  • Approximately 300 customers

Location of Customers Served

  • Parc of Escondido subdivisions in northeast Bexar County

San Antonio River Authority’s (SARA’s) Utilities Department maintains the collection system, which consists of:

  • 8 manholes
  • 1.7 miles of collection line
  • Graytown Road Lift Station
  • Martinez III will temporarily service the Martinez IV Wastewater Treatment Plant development

Martinez_IV_Service_Area

The Martinez IV Wastewater Treatment Plant will service future development near Graytown Road and I.H. 10 East. This treatment plant is permitted but not yet operational. Currently, the minimal flow within this service area is being treated by Martinez II or is pumped and hauled. Once future development in the area occurs, this plant will be opened and operational.

Martinez IV Wastewater Treatment Plant (WWTP)

Initial Permitted Flow 0.25 MGD, Final Permitted Flow 2.0 MGD

Number of Customers Served

  • Currently in design and construction. Service to start in May 2018

Location of Customers Served

  • Once completed, the Martinez IV Wastewater Treatment plant will service development in The Parc at Escondido, Notting Hill, Notting Hill Manor, Summer Hill, Reserve at Schertz, Paloma, Heathers Place and Asher Place Subdivision located in eastern Bexar County

San Antonio River Authority’s (SARA’s) Utilities Department maintains the collection system, which consists of:

  • 106 man holes
  • 6.37 miles of collection line

Currently, the minimal flow within this service area is being treated by Martinez III or is pumped and hauled.

FRA

First Responders Academy (FRA) Wastewater Treatment Plant (WWTP)

Average Daily Flow 0.004 MGD

Permitted Flow 0.025 MGD

Location of Customers Served

  • Alamo Community College District and First Responders Academy

San Antonio River Authority’s (SARA’s) Utilities Department maintains the collection system, which consists of:

  • 8 manholes
  • 0.5397 miles of collection line

Salatrillo WWTP

Salatrillo Wastewater Treatment Plant (WWTP)

Average Daily Flow 4.859 MGD

Permitted Flow 5.83 MGD

Number of Customers  Served

  • Approximately 17,000 customers

Location of Customers Served

  • Wholesale Contracts with Cities of Converse, Live Oak and Universal City
  • Residential- Camelot Subdivisions

San Antonio River Authority’s (SARA’s) Utilities Department maintains the collection system, which consists of:

  • 407 manholes
  • 22 miles of collection line

Note: The Salatrillo Wastewater Treatment Plant and service system, operations and maintenance, facilities expansions, and system administration costs are totally funded by connection fees, interest income on utilities funds, hay sales, and uniform user rate charges.


U.S. 181 Updated Version

U.S. 181 Wastewater Treatment Plant (WWTP)

Average Daily Flow 0.008 MGD

Permitted Flow 0.090 MGD

Number of Customers Served

  • Approximately 52 customers

Location of Customers Served

  • U.S. 181 will services future development in the Homewood Place Subdivision, located in the City of Elmendorf

San Antonio River Authority’s (SARA’s) Utilities Department maintains the collection system, which consists of:

  • 15 manholes
  • 0.76 miles of collection line
  • Tex-Best Lift Station

Martinez_IV_Service_Area

The Martinez IV Wastewater Treatment Plant will service future development near Graytown Road and I.H. 10 East. This treatment plant is permitted but not yet operational. Currently, the minimal flow within this service area is being treated by Martinez II or is pumped and hauled. Once future development in the area occurs, this plant will be opened and operational.

Martinez IV Wastewater Treatment Plant (WWTP)

Initial Permitted Flow 0.25 MGD, Final Permitted Flow 2.0 MGD

Number of Customers Served

  • Currently in design and construction. Service to start in May 2018

Location of Customers Served

  • Once completed, the Martinez IV Wastewater Treatment plant will service development in The Parc at Escondido, Notting Hill, Notting Hill Manor, Summer Hill, Reserve at Schertz, Paloma, Heathers Place and Asher Place Subdivision located in eastern Bexar County

San Antonio River Authority’s (SARA’s) Utilities Department maintains the collection system, which consists of:

  • 106 man holes
  • 6.37 miles of collection line

Currently, the minimal flow within this service area is being treated by Martinez III or is pumped and hauled.

These plants utilize the latest technology to produce a high quality effluent and to preserve the ecosystems into which the effluent is returned.

The wastewater treatment plants and service system, operations and maintenance, facilities expansions, and system administration costs are totally funded by connection fees, interest income on utilities funds, and uniform user rate charges.