Gasoline stations can be associated with various types of contamination, primarily stemming from activities related to the storage, handling, and dispensing of petroleum products. Some common types of contamination associated with gasoline stations include:

  1. Leaking Underground Storage Tanks (USTs): One of the most significant sources of contamination at gasoline stations is leaking USTs. Over time, corrosion, structural failures, or improper installation or maintenance can cause USTs to leak petroleum products, resulting in soil and groundwater contamination.
  2. Spills and Overfills: Spills and overfills during fuel delivery, tank filling, or vehicle refueling can result in immediate contamination of soil and potential migration of contaminants into groundwater.
  3. Surface Water Contamination: Runoff from gasoline station facilities, including parking lots, fueling areas, and service bays, can carry contaminants such as petroleum hydrocarbons, heavy metals, and other pollutants into nearby surface water bodies, potentially causing water quality issues.
  4. Vapor Intrusion: Vapors from gasoline and other petroleum products stored in underground tanks can migrate through the soil and enter buildings, posing health risks to occupants through inhalation exposure.
  5. Soil Contamination: Soil surrounding gasoline station facilities can become contaminated with petroleum hydrocarbons and other hazardous substances due to leaks, spills, and other activities. Contaminated soil may require remediation to prevent further migration of contaminants and protect human health and the environment.
  6. Groundwater Contamination: Leakage from USTs and spills can result in the contamination of groundwater with petroleum hydrocarbons and other chemicals. Contaminated groundwater can migrate off-site, posing risks to drinking water supplies and ecological receptors.
  7. Secondary Contamination: Gasoline station facilities may also contain other sources of contamination, such as underground hydraulic lifts, solvents used in vehicle maintenance, and chemicals stored for cleaning or maintenance purposes.

To address contamination associated with gasoline stations, regulatory agencies typically require site assessments, soil and groundwater investigations, and remediation activities to mitigate risks to human health and the environment. Remediation efforts may include activities such as soil excavation and disposal, groundwater treatment, vapor mitigation systems, and long-term monitoring to ensure that contamination is properly managed and mitigated.

The Team at RMS Environmental