Vault Biofilters

A vault-type biofilter is perfect for companies with footprint restrictions or facilities that already have catch basins. We have ample experience designing drainage using quality materials that will provide metals removals as high as our above-ground biofilters. These options save space and money for your company.

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Proven to Remove up to 99.7% of Metals

Explore our case study of a major semiconductor manufacturer and review the third-party lab results.

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Utilizing Existing Infrastructure

While on our site walks, we have noticed there are a lot of sites that already have concrete vaults collecting their stormwater. This is how we started transforming these concrete vaults into Biofilters. This will save our clients money and time.

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In Practice


Our first Biofilter vault design, AutoGator, proposed that we re-engineer their outflow vault into a biochar biofilter. It was simple to install, relatively inexpensive, and produced great lab results. AutoGator not only went back to baseline status; but it is still in compliance even after California stormwater benchmarks for zinc and copper levels were cut in half in year Y2020.

Hillsboro Garbarge Transfer

We proposed a biochar biofilter vault design at Hillsboro Garbage outfall vault. Again, our biofilter vault is producing great lab results!  And again, for a fraction of what a pump n’ treat would cost!

Biofilters on the Brain?

Us too! Reach out and connect with us to talk about your business needs and how our biofilters can help you meet your compliance needs without breaking the bank.