from evaluation to installation
septic design & installation
systems we design & install
Third Coast Septic LLC provides professional septic system design and installation services for residential and commercial properties throughout Corpus Christi, the Coastal Bend, and surrounding South Texas communities.
From initial site evaluation and soil analysis to custom system design, permitting, and installation, we manage the entire process. Our goal is to develop a reliable, code-compliant onsite sewage facility (OSSF) tailored to your property's conditions, wastewater needs, and long-term use.
A properly designed septic system begins with understanding the property. Third Coast Septic provides comprehensive onsite wastewater services, including site evaluations, soil assessments, wastewater flow calculations, system design, permit preparation, and professional installation.
We coordinate with the appropriate local permitting authorities and arrange required inspections throughout the project. Once installation is complete, we provide the applicable system records and documentation to help property owners understand their new septic system.
By handling both design and installation, we provide continuity from the initial planning stages through project completion.
Every property presents different challenges. Soil characteristics, available land, site conditions, and anticipated wastewater flow all influence the selection and design of an appropriate septic system.
Third Coast Septic designs and installs a wide range of onsite wastewater treatment and disposal systems, including conventional gravity-flow septic systems, low-pressure dosing (LPD) systems, EZflow and other approved gravelless drainfield technologies, aerobic treatment units (ATUs), surface spray disposal, and subsurface drip irrigation systems.
Whether you're building a new home, developing a commercial property, or replacing an existing septic system, we evaluate the available options to determine a practical solution that meets applicable Texas Commission on Environmental Quality (TCEQ) requirements.