ALIA Treatment Technology
Cleaning the water where it matters most.
Every tool we build to clean stormwater stops at the shoreline. The pollution doesn't. ALIA is the first treatment system designed to work in the water itself — where runoff concentrates and ecosystems are most at risk.
The Shoreline Gap
Land-based tools stop at the water's edge. Pollution doesn't.
It is the single idea behind everything PEARL builds.
✓ On land — covered
- Bioswales
- Retention ponds
- Street sweeping
✕ In the water — nothing
- Sediment settles on habitat
- Nutrients drive algal blooms
- Bacteria spreads through shellfish beds
The Solution
So we built treatment that goes in the water — at the exact point where pollution concentrates and ecosystems are most stressed.
The Chesapeake Bay as a kidney — why shoreline filtration matters
How It Works
Multi-Stage Active Filtration
Three treatment stages work together: physical pre-treatment removes large solids, chemical polishing targets dissolved nutrients, and biological filtration through live oyster raceways handles what remains.
Physical Pre-Treatment
Removes the big stuff before anything else.
- Minnow trap entry
- 500µm mesh screen
- Gravity settling
Chemical Polishing
Captures dissolved nutrients physical filtration can’t.
- Zeolite media
- Biochar
- Nitrogen / phosphorus resin
Biological Filtration
Live oysters finish the job — the part nobody else does.
- Oyster raceways filter to 2µm
- Removes bacteria & phytoplankton
- 50µm final polishing screen
Field Validated
Milton, Florida — January 2025
Blackwater River watershed · Real stormwater runoff · 7-day continuous deployment · Independent lab verification
“The E. coli reduction was unplanned.The system was designed for sediment. The fact that it knocked bacteria below detection limits showed us what an integrated biological and mechanical approach can do in real conditions.”
Deployment
Built to Go Where the Problem Is
PEARL systems are compact, modular units designed for shoreline deployment. They operate from small vessels in shallow estuarine waters or as fixed installations at stormwater outfalls — not large offshore structures.
No land acquisition or large offshore structures
Follows seasonal conditions and hotspots
Compact units vs. fixed offshore infrastructure
Operates from small vessels at the shoreline
Vessel-Mounted Platform
Compact mobile treatment for shallow tidal areas and estuarine environments. Small-scale deployment from workboats — no land acquisition required and simplified permitting. Repositionable based on seasonal conditions.
Fixed Dockside System
Permanent infrastructure for freshwater MS4 outfalls, PFAS hotspots, and year-round compliance points. Smaller footprint for constrained sites.
More Than a Filter
Every unit is a data node.
Each PEARL system carries 8 monitoring points that capture influent and effluent data in real time — TSS, turbidity, nutrients, microplastics, and dissolved oxygen. That data feeds directly into the PEARL Intelligence Network.
Paired with federal datasets from USGS, EPA, and NOAA, every deployment adds resolution to a national picture of water quality. Treatment and monitoring become the same infrastructure.
System Architecture
Diagnose and treat. One platform.
The only integrated system that identifies where waterways are failing and deploys physical infrastructure to fix them.
PIN — The Diagnostic Layer
The PEARL Intelligence Network monitors surface water quality across all 50 states. 565,000+ assessment points. Real-time federal data from USGS, EPA, NOAA, and state agencies. Role-based dashboards for municipalities, regulators, researchers, and educators.
PEARL — The Treatment Layer
Modular biofiltration and mechanical treatment deployed at the shoreline. Oyster raceways and progressive mesh screens intercept what land-based BMPs miss. Each unit generates high-frequency treatment data that feeds back into PIN.
The goal is simple.
Clean water gives ecosystems a fair chance. It gives communities something to believe in. We are building the tools to prove that restoration works — with data, not promises — and to leave these waterways in better shape than we found them.
If you work on water quality, we should talk.
Available for state, federal, and municipal partners