New installation design
Complete engineered design for a new residential or commercial on-site sewage facility — sized to your soils, lot layout, and daily flow.
Bexar County & surrounding counties, Texas
Wastewater engineering & design.
Alamo City Septics provides engineering and design for residential and commercial wastewater systems — new installations and modifications to existing systems.
24-hr turnaround on design estimates
Septic tank — two compartment
Estimates
24-hr turnaround on design estimates
Scope
Residential & commercial wastewater systems
Service area
Bexar County and all surrounding counties
What we do
Wastewater engineering and design for new installations or system modifications.
System modifications
Redesign or expansion of an existing system when a home is added onto, a use changes, or an older system no longer meets the load.
Site evaluations
Soil and site evaluation to determine what the ground will actually accept, and which treatment and dispersal method fits the property.
How it works
Request, estimate, design.
Send the request
One form — your county, the property, and whether it is a new installation or a modification.
Estimate within 24 hours
We review your request and email your design estimate back.
Design
Once you approve the estimate, we produce the engineered design for your system.
System types
A plain-language look at what goes in the ground.
Not sure what you have or what you need? Here is a breakdown of two common system types.
Conventional system with leaching chambers
Gravity system where effluent is absorbed and filtered by the surrounding soil.
View the breakdown
Aerobic treatment unit with surface spray
Treated effluent dispersed evenly across the lawn — used where soils or lot size rule out a conventional field.
View the breakdownRecent work
Real designs from real projects.
Every estimate ends in a stamped, buildable design like these. Open any sheet full screen to read the site plan, specifications, and setbacks.
New installation — gravelless pipe
1,000 gal DC concrete tank · 8" gravelless pipe · 200 linear ft of trench.
Conventional — leaching chambers
Class Ib soil · Quick4 leaching chambers · two rows at 50 ft.
Aerobic treatment — surface spray
720 gpd · 3-compartment ATU · 6,867 ft² spray field.
Drip dispersal — existing home
Existing 2,738 ft² SFR · 750 gpd ATU · drip irrigation field with detail.
Service area
Bexar County and every county around it.
Pick your county on the estimate form and we will confirm coverage right there. If yours is not listed, send the request anyway.
Check your county- Bexar
- Atascosa
- Bandera
- Comal
- Fort Bend
- Guadalupe
- Kendall
- Medina
- Uvalde
- Wilson
Ready for a design estimate?
One short form, and we email your design estimate back within 24 hours.