Hazardous Waste Manifest Records

The Department of Energy and Environmental Protection (DEEP) keeps hazardous waste manifests, the shipping documents that must accompany regulated shipments of hazardous waste. DEEP's Obtaining Manifest Data page, last modified March 31, 2020, says shipments of hazardous waste within, into or from Connecticut require a manifest, that DEEP's requirements have for many years required certain copies to be submitted to DEEP, and that DEEP has retained records of these manifests since 1980.

In a Phase I ESA

ASTM E1527-21 does not name manifests among its standard record sources. A manifest is a shipment record, so it can show that waste left a property even where no waste program lists the property. Dates matter, because DEEP's pages describe different holdings by year, and two of its pages disagree on how far scanning has gone.

• Generators stopped sending copies in 2015. DEEP says that as of September 29, 2015, generators are no longer required to submit a copy of a completed manifest to DEEP. Recent manifest data can be obtained from EPA's electronic manifest system.
• Not every generator's manifests were kept. DEEP says it typically retained only manifests from generators that were required to obtain a permanent or temporary EPA ID number, and typically did not retain manifests for conditionally exempt small quantity generators or manifests used to ship other wastes such as Connecticut-Regulated Waste.
• The 2020 page describes gaps by year. DEEP's page, last modified March 31, 2020, says selected information from manifests received from 1984 to 2008 was entered into an electronic database and is on the state open data portal without scanned images, that manifests from 2012 to 2014 were scanned and indexed by generator name, address, town, generator ID number and shipment date, and that manifests from before 1984, from 2008 to 2012 and after 2014 were then unavailable, with scanning due to finish in late 2019 or early 2020.
• The 2024 page describes the scanning as finished. DEEP's Records Center page, content last updated July 2024, lists a Hazardous Waste Manifest Portal Metadata dataset on the open data portal, which it describes as covering all years of manifests from 1981 to 2018, and says scanning of all years of manifest documents is complete and the images are available through the DEEP Document Online Search Portal. It also lists an older, incomplete manifest dataset for 1984 to 2008. Check the portal first, and ask DEEP what it holds for the years you need.

Where to look a site up

• The Records Center page links the Hazardous Waste Manifest Portal Metadata dataset. DEEP says it holds only the data tied to the scanned manifest documents, such as town, address and company name, and is faster and more powerful to search than the portal.
• The same page links the older Hazardous Waste Manifests 1984-2008 dataset, which it says is available so the public can compare results between the two datasets, and which has small differences from the newer one.
• The Records Center page lists Hazardous Waste Manifests among the documents in the DEEP Document Online Search Portal.

Getting the file

DEEP's 2020 page says to order copies of manifests listed in the older open data set by filling out its Hazardous Waste Manifest Order Form and emailing it to deep.manifests@ct.gov, giving the manifest number, manifest date and batch number for each. It says scanned manifests from 2012 to 2014 could then be viewed and printed only at the Records Center. See the Environmental Quality Records Center page. The 2024 Records Center page says the images are in the portal. The pages read do not reconcile the two routes.

Sources

Department of Energy and Environmental Protection pages, read October 8, 2026:

• Obtaining Manifest Data, last modified March 31, 2020.
• Environmental Quality Records Records Center File Room, no modified date shown; the page's footer reads "Content Last Updated July 2024".
• Hazardous Waste Home, last modified February 27, 2025.