provides UST management solutions including:

• leak detection / tank tightness
• UST removal and disposal
• groundwater monitoring and contamination investigations
• product recovery
• soil vapor monitoring
• remedial action when required

Higher public awareness and tighter governmental regulations are forcing businesses to investigate, evaluate, and in some instances remediate, their underground storage tank (UST) systems.

For more information on how to protect your business from a devastating event or to deal with one involving your USTs, contact us at consult@hydrotechcorp.com. If you think your home or business is being contaminated by a neighboring site HydroTech can provide services to eliminate the problem.

The majority of underground storage tank (UST) systems contain petroleum products (gasoline, diesel, heating oil, kerosene, jet fuel), but many other substances classified as hazardous by the Resource Conservation and Recovery Act and the Comprehensive Environmental Response, Compensation, and Liability Act ("Superfund") are stored in USTs. Leaking USTs are called LUSTs.

A schematic of a typical LUST spill site (Mace et al., 1997). The leaky tank releases gasoline, or "liquid phase hydrocarbon." The gasoline descends through the unsaturated soil zone (depicted as the yellow layer) to float on the water table (gasoline is lighter than water). In the "smear zone," the gasoline releases compounds like benzene, toluene, ethylbenzene, and xylenes (BTEX) and methyl tert-butyl ether (MTBE) to the groundwater (depicted as the blue layer) and they are carried in the direction of groundwater flow. The extent of contamination is defined by the concentration of benzene (from 10 to 10,000 parts per billion) in the groundwater.