Engineered Septic Systems

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Engineered Septic Systems

Design, construction and long-term maintenance for alternative sewage treatment systems.

"We design It, We install It, We Maintain It, We Stand Behind It"

America is faced today with the challenge of a rapidly expanding population, greater demand for scarce resources, and the challenge of finding responsible and renewable ways to manage and utilize those resources.
In California, new innovative technologies are being introduced to the market that vastly advance wastewater treatment processes. Engineered Septic Systems (ESS) was formed because we recognize that there is a huge demand for safe, alternative treatment systems that provide approved wastewater treatment that meets the demands of a growing population and protects our increasingly limited water resources. Now, we have those systems.
Featured on the cover of Onsite Installer Magazine!

ESS is a pioneer in the field of alternative treatment technologies. We are the premier alternative septic design/build firm servicing the greater North Bay, including Napa, Lake, Sonoma, Mendocino and Marin Counties. You will not find better designed systems, better value or a more experienced team than ESS!
Californian License number: 888379

Conventional septic systems provide adequate treatment under many conditions; however, because they discharge contaminated wastewater into the natural environment they depend on natural processes to complete the waste treatment. They require a substantial thickness of free draining soil, and groundwater must be located well below the disposal lines. If these conditions are not met then septic soil conditions and/or groundwater contamination can result.

Before Digging Up Your Yard...
If your septic system is fouled by biological clogging (biomat), we can rehabilitate it without destroying existing landscape and at a fraction of the cost of system replacement.