Petroleum Residue, Slip Hazards, And Environmental Runoff
Motor oil, diesel, hydraulic fluid, and cooking grease can penetrate porous concrete and leave a slick film even after the surface appears dry. We inspect the stain’s edges, depth, and surrounding areas, then identify foot-traffic zones, garage entrances, ramps, and other locations where reduced traction could cause a fall.
We protect storm drains and nearby soil before applying detergent. Our process may include absorbent materials, controlled rinsing, and collection or diversion of contaminated water, subject to local requirements. We use biodegradable detergents where suitable, but “biodegradable” does not mean oil-contaminated runoff can enter a drain untreated.
We also check for cracked concrete, loose joint sand, efflorescence, sealers, and sensitive landscaping. Digital before-and-after photographs can document the affected area and help property owners track whether recurring leaks require mechanical repairs.






