Connecticut Hazardous Waste Manifests 1984-2008

Over 100,000 paper manifests were received annually, detailing hazardous waste shipments within Connecticut. The dataset includes generator, transporter, and treatment facility information, compiled by the Connecticut Department of Energy and Environmental Protection. Records span from 1984 to 2008.

Use Cases

• Analyze waste flow patterns by linking `genmailtown` and `tsdfstate` to identify common disposal routes.
• Audit transporter compliance by examining `tran1epa` and `tran2epa` identifiers across manifests.
• Assess data quality by identifying inconsistencies in `tran1name` and `tran2name` spellings for the same entity.
• Study temporal trends in waste shipment volumes using the `dtshipp` (ship date) field across the 24-year period.

Strengths

• Records span a 24-year period from 1984 to 2008.
• Includes detailed fields for generator, transporter, and facility locations.

Limitations

• Contains acknowledged errors including misspelled names, incorrect addresses, and missing manifests.
• Approximately 25 boxes of paper manifests, mostly prior to 1985, were lost and are not in the database.
• Data migrations have introduced translation errors and data losses over time.

Provenance

Source

Connecticut Department of Energy and Environmental Protection (DEEP).

Collection Method

Manually entered from paper manifests submitted by waste generators and transporters.

Time Range

1984 to 2008

Freshness

Historical data covering 1984-2008; last metadata update was 2026-04-03.

Geography

Connecticut, United States