Cleaner surfaces. Zero chemicals.
High-efficiency surface cleaning with full water recovery for pervious pavement, parking structures and other hard surfaces.
- UNH testedStormwater Center field study, 2019
- Chemical-freeCleans with water, recovered on board
- GSA contract47QMCA18D000Q
- Since 2001Engineered in Palmer, Alaska
Chemical-free surface cleaning for pervious pavement, parking facilities and stormwater compliance
Since 2001, Triverus has engineered and built surface cleaning vehicles in Palmer, Alaska. Our machines lift sediment, oils and metals out of the surface with pressurized water and vacuum everything back on board, so it never reaches the storm drain. Property managers, HOAs, contractors and municipalities hire our crews, and agencies buy the same machines to run themselves.
Two ways to put Triverus to work
Hire our crew to clean it for you, or buy the machine and run it yourself. The cleaning system is the same either way.
Hire our crew
Scheduled or one-time cleaning for property managers, HOAs, contractors and municipalities. We bring the machine, the operators and the documentation your stormwater permit asks for.
Get a cleaning quoteOwn the machine
Purpose-built vehicles with operator training and factory support. Available to government agencies through GSA Advantage.
Compare vehiclesMCV-HD: a heavy-duty platform is in development.

MCV
60-inch cleaning deck. Turns inside 9 feet for decks and garages.

MCRRS
Large-area cleaning with on-board water recycling for airfields and industrial surfaces.

WTT
Treats recovered water on site so two MCVs keep cleaning.
Who we serve
Pervious pavement and hard surface cleaning for public agencies, property owners and the contractors who serve them.
Public Works
Stormwater source control and pervious pavement maintenance for MS4 programs.
Airports
Ramp, terminal-area and garage cleaning with spill recovery.
Parking Facilities
Garages, decks and lots cleaned with the wash water captured.
Parks & Recreation
Pervious paths, plazas and parking areas restored and kept draining.
Schools & Campuses
Campus lots and walkways, tested on university porous asphalt.
HOAs & Property Managers
Scheduled cleaning for pervious lots, drives and shared paving.
Contractors & Pavement Cleaners
Add an MCV to your fleet, or clean ahead of crack sealing and striping.
Homeowners
Pervious driveways and paver patios cleaned and restored.
Independent testing · UNH Stormwater Center
A failed lot, draining again
In 2019 the University of New Hampshire Stormwater Center measured two clogged porous asphalt lots before and after cleaning with the Triverus MCV, using the ASTM C1701 infiltration test.
It clogs from the top down
Sand, silt and organic debris fill the pores, so water runs off instead of soaking in.
Water lifts it out
Pressurized spray pulls embedded material out of the voids instead of pushing it deeper.
Vacuum takes it away
Water and solids come back on board, so nothing washes into the storm drain.

BeforeAfterUNH Alumni Center porous asphalt lot, before and after cleaning. Drag to compare.
3→94in/hr
Infiltration at the West Edge lot, before and after cleaning
84in/hr
Alumni Center lot after cleaning, up from a failed surface
150lbs
Coarse sediment removed from West Edge in about 6 hours
350lbs
Coarse sediment removed from Alumni Center in about 4 hours
From the field
What is in my “Dirty Pervious Pavement?”
Apr 18, 2022How to Prevent Flooding of Pervious Surfaces
Mar 29, 2022Pervious Pavement and How to Clean It
Upcoming events
Example: Stormwater conference booth
Example: Live MCV demonstration
Tell us about your surface
Send the surface type and rough square footage, or ask about owning a machine. We'll follow up with pricing and next steps.









