Baseline Usage
300 kGal
Previous Monthly
$1824.00
New Monthly
$1971.00
Annual OpEx Delta
+$1764.00
The Policy Shift
SAWS is considering an 8% increase in water rates for 2026, part of a larger infrastructure investment plan that could see rates climb by as much as 32% by 2029. The average residential customer's bill would increase by $4.76 per month. The increases are deemed necessary to fund critical infrastructure upgrades including modernizing aging wastewater treatment facilities, fixing sewer infrastructure across the city, and complying with EPA mandates for emergency backup generators at treatment plants.
The Math: Commercial Financial Impact
Using SmartValve's integer-math billing engine, we modeled a baseline commercial facility consuming 300 kGal per month in San Antonio. Current combined rate: $6.08/kGal (water $1.958/kGal + sewer $4.12/kGal). Post-increase combined rate: $6.57/kGal (8% increase). Previous monthly volumetric cost: $1,824 ($6.08 × 300 kGal). New monthly volumetric cost: $1,971 ($6.57 × 300 kGal). That is a $147/month increase, or $1,764 per year in additional operating expenses. While San Antonio remains one of the lowest-cost water markets in the nation, the four-year plan means cumulative increases will push the combined rate to approximately $8.03/kGal by 2029 — a $7,020/yr increase from today's baseline.
Why This Is Happening
San Antonio's wastewater treatment facilities are approaching end-of-life and require comprehensive modernization. The city is also under EPA mandates to install emergency backup generators at treatment plants. SAWS serves over 2 million people in a rapidly growing metro area, putting additional strain on existing infrastructure. The multi-year rate plan was designed to spread the investment cost across four years rather than imposing a single large increase.
Mitigation Strategy
While San Antonio's absolute water cost is the lowest among major Texas metros, the 32% four-year escalation plan creates a compelling case for proactive conservation investment. Facilities should evaluate water reduction technology now while rates are still relatively low — the ROI improves every year as rates climb. At the projected 2029 rate of ~$8.03/kGal, a 20% volumetric reduction on a 300 kGal facility would save approximately $5,782/year.
Calculate your San Antonio facility's four-year water cost trajectory.
The Smart Valve compresses air in your water line, ensuring you only pay for actual liquid and stay under penalty thresholds.
View ROI CalculatorFrequently Asked Questions
How much are San Antonio SAWS water rates increasing in 2026?
SAWS is implementing an 8% water rate increase in 2026, raising the average residential bill by $4.76/month. The commercial combined rate rises from $6.08/kGal to approximately $6.57/kGal. A 300 kGal/month commercial facility will pay approximately $1,764 more per year.
Will San Antonio water rates continue increasing after 2026?
Yes. SAWS has proposed a multi-year plan that could raise rates by 32% total by 2029. The increases fund wastewater treatment modernization, sewer infrastructure repairs, and EPA-mandated backup generator installations.