Repurposing proven oil & gas technology

What it is
Slurry injection technology is a type of geological fracturing commercialized in the oil and gas sector in the 1980s to manage oilfield waste. It’s been safely and successfully implemented in hundreds of facilities worldwide.
Vaulted pioneered applying bioslurry injection to carbon removal. Our technology has been operating in Los Angeles at TIRE since 2008 with an exemplary safety record.
What it does
We securely inject excess organic waste deep underground, into the natural formations with the same features that have safely stored hydrocarbons for millions of years. Our wells extend nearly a mile beneath the surface where our target formations are found. These formations permanently dispose of the waste and protect groundwater.
Why it’s safe by design
We only accept nonhazardous waste and monitor our sites 24/7 for safe storage. Our wells use a pipe-in-pipe design that’s reinforced with a cement layer from the surface to our injection formation for complete containment.
How we streamline
Vaulted’s facilities are compact, require minimal equipment for processing, and operate with streamlined logistics. This efficiency reduces infrastructure needs, minimizes impact to the subsurface, and simplifies deployment across locations.
Go deeper
Why slurry injection technology is
groundbreaking
Slurry injection makes it possible to put solids underground, rather than in a landfill, in our water, or in our atmosphere. Most of society’s waste is not a simple liquid, gas, or solid. Slurry injection allows us to safely and permanently store solids deep underground—something traditional geologic injection methods can’t do. Most underground storage needs pure gases or liquids. Instead, our process handles liquids mixed with solids, like treated sewage, excess manure, and other organic waste that can be extremely challenging for disposal.
This is groundbreaking for both waste management and carbon removal: instead of needing pure CO₂, we can permanently remove carbon directly from organic waste with minimal processing and keep that waste locked away from our air, water, and soil.
Dig deeper into the science on bioslurry injection and geological fracturing.
How we’re regulated for safety
Vaulted’s injection wells are regulated under the U.S. EPA’s Underground Injection Control (UIC) program, part of the Safe Drinking Water Act. The UIC program is specifically designed to protect underground sources of drinking water.
Before we inject any material, we must demonstrate that our construction and operations will not endanger water supplies. That means proving—through detailed plans, modeling, and ongoing monitoring—that our wells are built to contain waste securely, with no risk to groundwater or human health. Every site we operate must meet strict federal standards before receiving a permit. During our daily operations, we use Vaulted’s proprietary real-time monitoring software to continuously confirm containment.