When a small oil or grease spill occurs, hiring the least expensive cleanup crew may seem like the practical choice. General pressure-washing companies are often readily available, charge less upfront, and promise to make the affected area look clean quickly.
But be warned…
Petroleum spill cleanup is not the same as ordinary exterior cleaning. A surface may appear better after pressure washing, while contamination remains embedded in concrete, soil, cracks, or other porous materials. In many cases, the cheapest initial service can lead to repeated visits, additional labor, operational disruptions, and a higher total cleanup cost.
Pressure Washing May Move the Spill Instead of Treating It
Pressure washers are effective at removing dirt, mildew, and surface buildup. Petroleum contamination presents a different challenge.
When high-pressure water is applied to an oil or fuel spill, it may push the contamination across a larger area or deeper into porous concrete. The wastewater can also carry petroleum toward nearby storm drains, creating a much larger pollution problem.
The visible stain may become lighter, but that does not necessarily mean the petroleum has been removed. In some cases, the cleanup process simply relocates the problem.
This is particularly concerning around parking lots and job sites, where runoff can quickly travel beyond the original spill location.
Household Dish Soap Is Not a Remediation Product
Some general cleanup crews use basic degreasers or household dishwashing liquids, such as Dawn, to treat oil stains. While they may help separate grease from a hard surface and be safe to use with those cute ducks and penguins, they were not developed to remediate petroleum contamination.
Dish soap can disperse oil into smaller droplets, making the surface appear cleaner. However, the petroleum still has to go somewhere. Once mixed with water, it may spread through the wash water rather than being properly contained or broken down.
Repeat Visits Can Erase the Initial Savings
A low-cost pressure-washing service may become more expensive when the crew has to return multiple times.
Petroleum can remain below the surface after the first cleaning. As the pavement heats up, embedded oil may rise back through porous concrete, causing the stain or odor to return. Additional visits may then be needed to wash the same area again.
Each repeat service can create more costs, including:
- Additional cleanup invoices
- Employee time spent coordinating access
- Temporary closure of parking or work areas
- Equipment or vehicle downtime
- More water, chemicals, and labor
Businesses should compare the total cost of resolving a spill with the price of a single service call. A cheaper quote is not a bargain if the underlying problem remains untreated.
Uncontrolled Wastewater Can Create a Larger Problem
Pressure washing produces wastewater containing whatever was present on the surface. When petroleum, grease, sediment, and detergents are mixed into that water, improper runoff can spread contamination beyond the original area.
Crews without spill-response experience may not have the equipment or procedures needed to control the wash water.
Even when a smaller spill does not meet reporting thresholds, it should still be handled responsibly. An unreportable spill can become more complicated if an improper cleanup allows it to reach a storm drain, waterway, neighboring property, or sensitive area.
Limited Documentation Can Leave Questions Unanswered
A standard pressure-washing invoice may only show that a surface-cleaning service was completed. It may not document the substance involved, the size of the affected area, the products used, the containment steps taken, or the condition of the site after treatment.
Clear documentation is valuable for property managers and business owners. It creates a record of how the spill was addressed and helps demonstrate that appropriate steps were taken.
Specialized Bioremediation Treats More Than the Stain
At this point, you might be wondering, “Who can I trust to clean up this spill?” We’re so glad you asked.
OPG+ uses proprietary bioremediation technology designed to support naturally occurring microorganisms that break down oil, fuel, and grease. Instead of relying on high-pressure water to move petroleum away from the visible area, bioremediation treats the contamination on-site.
This approach can reduce the need for repeated pressure-washing visits, extensive excavation, waste hauling, and prolonged disruption. OPG+ specializes in smaller, often unreportable spills that still require prompt and responsible treatment.
OPG+ Is a Remediation Partner You Can Trust
OPG+ provides 24/7 response and natural bioremediation services designed to support an environmentally and economically friendly path forward. We proudly serve:
- All of Florida
- Atlanta, GA
- Savannah, GA
- Charlotte, NC
- Greensboro, NC
- Raleigh-Durham, NC
- Nashville, TN
- Houston, TX
- Dallas-Fort Worth, TX
- Austin, TX
- San Antonio, TX
