A Guide to DEEP’s Environmental Quality Records Center (File Room)
Starting June 1st, public access to DEEP’s records center at 79 Elm Street, Hartford will be available to a maximum capacity of 12. We strongly recommend you schedule an appointment online ahead of time to confirm your spot on any given day.
Documents and Data Available Online
Documents in Online Search Document Portal
Use the DEEP Document Online Search Portal to search, view, and download electronically available documents. Currently available agency documents, include: Hazardous Waste Manifests, Spill Reports and associated documents, and a growing number of Remediation documents.
Video - Online Search Portal Demonstration (Recorded October 2019 - Remediation Roundtable Meeting)
Many datasets concerning the environment and natural resources category can be found within the CT Open Data platform, which include the datasets listed below. These datasets can be searched, sorted, tabulated, and downloaded. The datasets only provide data from DEEP databases. They do not provide access to electronic documents like the DEEP Document Online Search Portal. However, the datasets can be very useful search tools, for example if you are simply looking to find a case number or are searching for a specific address before you search the DEEP Document Online Search Portal.
Datasets on CT Open Data:
Note: Documents related to releases (spills) reported to CT DEEP from 1970 to the present are available on the DEEP Document Online Search Portal. Additionally, documents consisting of completed Emergency Incident Field Reports for releases reported to CT DEEP from July 1, 2022 to the present are available through the Releases Reported to DEEP Portal.
Hazardous Waste Manifest Portal Metadata (all years of manifests, 1981 – 2018)
Note: This dataset contains only the data from the Portal that is associated with the scanned manifest documents (i.e. Town, Address, Company Name, etc.). Scanning of all years of manifest documents is complete, and the images are available via the DEEP Document Online Search Portal. Searching the Open Data Metadata dataset is faster and more powerful compared to the Portal. The Metadata dataset includes a description of the dataset and the manifest documents.
Hazardous Waste Manifests 1984-2008 (older, incomplete Manifest dataset)
Note: This dataset is available in case the public wants to compare search results between the newer, complete Portal Metadata and the older, 1984 – 2008 dataset. There are small differences between the two datasets that may result in different search results.
Note: Some documents are available via the DEEP Online Search Portal.
Hours of Operation
How to Schedule an Appointment
Files Located in the Records Center
File Review Procedures
Records Center Self-Service Documents
Other Sources of Information
USGS Maps and Aerial Photos
Hours of operation: Tuesday, Wednesday and Thursday - 9:00 a.m. to 11:30 a.m. and 1:00 p.m. to 2:30 p.m. Public access closes for the day at 4:00 pm.
To schedule an appointment: The DEEP Records center is now accepting appointments online. This will guarantee your place in line. Upon booking your appointment, you will be required to submit a File Request Form to DEEP.RecordsCenter@ct.gov at least 24 hours prior to your appointment so that records center staff can prepare your files ahead of time or even provide them electronically as much as possible. Requests will be fulfilled in the order in which they are received.
- A file review area with tables, chairs, and copy machines has been established outside the DEEP File Room Vault for the convenience of the public.
- A "Request for File Review" Form must be completed to obtain any files.
- All files shall be reviewed in the file review area and shall not be removed by the public for any reason.
- Members of the public may not enter the File Room Vault Area unless accompanied by a DEEP staff person.
- Files will not be pulled between 11:30 a.m. and 1:00 p.m., or after 2:30 p.m.
- Personal items (with the exception of notepaper or a lap top computer) are not allowed on the review tables.
- No food or drink is allowed at the file review tables.
- Please handle all files with care and return the files in the same condition and order that you received them. Keep all files in a neat and orderly manner.
- Pencils are the preferred writing instrument at the file review tables to avoid damage to the files.
- The use of privately owned copiers within the file review area is prohibited.
- Please see the records center attendant for staplers, staple pullers, and questions regarding the files.
- If you find something misfiled, please notify one of the DEEP records center staff.
- There is no smoking allowed anywhere in the building.
- DEEP is not responsible for personal items lost, stolen or damaged.
- Sec. 53-153 of the Connecticut General Statutes (CGS) - Unlawful removal or alteration of records. Counterfeiting seals.
There are two card-operated copiers which are capable of providing double-sided copies and have an autofeed function. Currently fees are being waived for the use of these copiers or any handheld battery operated devices used for scanning (including cell phones).
If needed, you may obtain certified copies of documents. The charge for certified copies is $1.00 for the first page, and $.50 for each additional page. The records center attendant must make the copies and certify them for you.
U.S.G.S. maps, and other publications may be purchased at the DEEP Store.
Aerial Photos are no longer available at the DEEP. They can be reviewed at the Connecticut State Library.
PLEASE NOTE: The presence or absence of Information in the Department’s files is not a guarantee of the presence or absence of environmental problems or violations at a site or facility.
Dates after file types indicate earliest files stored in file room. Some units of the DEEP have older files (generally pre-1990) stored off-site. Access to these documents may be arranged by contacting the appropriate Bureau representative in the file room.
Air Management Bureau
|Indirect Source Permits
|PIQs (Pre-Inspection Questionnaires)
|Program Files (Orders, NOVs, Inspection Reports, Complaints)
|Stage II Gas Station Inspections
|Open Burning Permits
Bureau of Materials Management and Compliance Assurance
|Oil & Chemical Spill Incident
|Notices of Violation
|Solid Waste Facilities
|Engineering Drawings & Maps
|Landfills & Volume Reduction Plants
|Water Quality Data
|Special Waste Authorizations
|Underground Storage Tank (UST) Program
Bureau of Water Protection and Land Reuse
Discharge Permits, Monitoring, Correspondence, Reports, and Orders for the Following Programs
|Significant Environmental Hazard Records
|Superfund (State & Federal)
|Urban Site Remediation
|Well Completion Reports
NOTE: If documents that you request have a "Confidential" designation or claim, staff in the File Room will assist you further.
Several series of documents are available in the File Review Area and can be accessed without assistance from DEEP Records Center staff:
Air Management Bureau
Consumer Protection/DEP Stage II Listings for Gas Stations
Point Source Emissions Inventory - 2004
Water Protection and Land Reuse Bureau (Maps)
Coastal Boundary Maps
State & Federally Listed Species & Natural Communities Maps
Property Transfer List
Comprehensive Environmental Response Compensation Liability Act (CERCLA)
List of Contaminated or Potentially Contaminated Sites
UST Petroleum Cleanup Meeting (letters to Commissioner) UST Program
Minutes of Review Board Meetings
Materials Management and Compliance Assurance Bureau
Underground Storage Tank Registration List (UST Program)
Leaking Underground Storage Tank List (UST Program)
Hazardous Waste Notifiers List (WEED)
Residential Underground Storage Tank (UST Program)
Guidelines for the Management of Wastewater Treatment Sludge at Solid Waste Disposal Facilities
Solid Waste Management Plan
Hazardous Waste Sites
List of Contaminated or Potentially Contaminated Sites
Bureau of Water Protection and Land Reuse, 2nd Floor
|Remediation /Property Transfer, State & Federal Superfund (2nd Floor)
|Leaking Underground Storage Tank Trust Program/1988
Bureau of Water Protection and Land Reuse, Land and Water Resources, 3rd Floor
|Coastal Permits, Certificates of Permission
|Inland Wetlands, Flood & Erosion Control
State Emergency Response Commission, 4th Floor 860-424-3373 DEEP.CTEPCRA@ct.go
Emergency Planning and Community Right-to-Know Act
Section 311/MSDS: Chemical Hazards Reporting
Section 312/Tier II: Chemical Inventory Reports
Section 313/Form R: Toxic Release Reporting
Bureau of Materials Management and Compliance Assurance, 4th Floor 860-424-3023
|List of Commercial Hazardous Waste and Connecticut Regulated Facilities
|Hazardous Waste Management System
|Identification and Listing of Hazardous Waste
|Polychlorinated Biphenyl’s (PCB’s)
|Hazardous Waste Manifests
|Solid Waste Management Regulations
Air Management Bureau, 5th Floor
|Active State Orders (Including Trading Orders)
|Air Source Registration
|Compliance Analysis Coordination Unit/CACU
|Monitoring Meteorological Data
|Permit Applications under Review
Content Last Updated October 2022