SAWS: Rates - Water Supply Fee
Aquifer Beaker

Edwards Aquifer

Aquifer Level 683.6'
5/21/19 - Official

The Edwards aquifer and its catchment area in the San Antonio region is about 8,000 square miles and includes all or part of 13 counties in south-central Texas.

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Year-Round Watering Hours

Watering with an irrigation system or sprinkler is allowed any day of the week before 11 a.m. or after 7 p.m.

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Aquifer Level 683.6 | Year-Round Watering Hours

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Water Supply Fee

Water Supply Fee

Rate Structure

Effective for consumption on or about January 1, 2019

This fee directly funds the acquisition of new water supplies to reduce San Antonio’s dependence on the Edwards Aquifer.

The Water Supply Fee shall be assessed on all potable water service for water usage in every instance of service for each month or fraction thereof according to the schedule below:

Water Supply FEE
RATE CLASS   Usage Gallon -
Block Threshold
Assessed Fee
Residential   2,992 $0.1040
    4,489 0.1819
    5,985 0.2338
    7,481 0.2859
    10,473 0.3379
    14,962 0.3899
    20,199 0.4678
    Over 20,199 0.6756
General   Base* $0.1961
    125% of Base 0.2256
    175% of Base 0.2941
    Over 175% of Base 0.3433
Wholesale   Base** $0.2554
    Over Base 0.7665
Irrigation   8,229 $0.2566
    17,954 0.3592
    162,316 0.4619
    Over 162,316 0.5903

* The Base Use for General Class is defined as 100% of the Annual Average Consumption.

**The Base Use for the Wholesale Class is defined as 100% of the Annual Average Consumption or as agreed to by the wholesale customer and approved by the SAWS Board of Trustees.

Rev. 1/2018