This was a big one: 260,800 square feet of covered, multi-level parking in Santa Ana. The floors carried the kind of deep-set dirt and oil residue that does not come off with a rinse.
Parts of the structure had no floor drains, which is common in older garages. That is a problem for most crews, because the dirty water and everything in it has nowhere to go. Most operations let it run off. We used our water recovery system to capture the wastewater on site before it could spread.
The concrete is clean across the full surface, the stall lines are crisp and visible again, and the dark build-up is gone. The property stays on the right side of the stormwater rules.
What we did
- Hot water surface cleaning, level by level
- Oil residue pre-treated and degreased
- Wash water captured with on-site recovery, no runoff
