Federally Regulated Underground Storage Tank Releases

Records detail releases from federally regulated underground storage tanks reported to the EPA by the Connecticut DEEP. The dataset covers tanks containing heating fuel for resale, gasoline, diesel, kerosene, and waste oil. It excludes releases from non-federally regulated tanks and may contain errors like misspelled addresses.

Use Cases

• Analyze release frequency and patterns for federally regulated USTs containing substances like gasoline and diesel
• Map reported release locations using address data to identify environmental risk hotspots
• Cross-reference Case Numbers listed multiple times for releases involving more than one Substance
• Assess data completeness and reporting gaps for federally regulated UST Systems versus non-federally regulated ones

Strengths

• Data originates from official state environmental reporting to the US Environmental Protection Agency
• Focuses on federally regulated USTs with defined substance types: heating fuel for resale, gasoline, diesel, kerosene, and waste oil
• Provides direct contact ([email protected]) for users to report identified data errors

Limitations

• Excludes releases from non-federally regulated USTs, such as residential heating fuel tanks, limiting scope
• Acknowledges potential data errors including misspelled or incomplete addresses and missing data
• Not all releases from federally regulated UST Systems are required to be reported, creating potential gaps

Provenance

Source

Connecticut Department of Energy and Environmental Protection (CT DEEP) reporting to the US Environmental Protection Agency

Collection Method

Reported releases from regulated UST systems, subset of full records available in state systems

Freshness

Last updated March 15, 2026.

Geography

State of Connecticut, USA