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DNREC Open Data



The Department of Natural Resources and Environmental Control (DNREC) is part of the Delaware Open Data Council established by Governor Markell in 2016 and expanded by Governor Carney in 2018 under Executive Order 18.

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As part of the Council, DNREC is helping set the standards for, and launching some of the earliest versions of, open data from Delaware state agencies via the Delaware Open Data Portal.

The Open Data Council will build on, and expand, the data offerings that state agencies have long tried to provide such as DNREC’s Environmental Navigator and the FirstMAP geospatial data site for Delaware. The Council, through the Department of Technology and Information, has entered into a contract with Socrata to provide an open data portal tool that Delaware can use to publish its open data.

DNREC Data in the Open Data Portal

Department-wide

A listing of events hosted by or sponsored by the Delaware Department of Natural Resources and Environmental Control. Go to the data

A listing of all active public notices published by the Delaware Department of Natural Resources and Environmental Control. Go to the data

Fish and Wildlife

Summary count information for boat registrations issued each year by the State of Delaware. Go to the data

Total counts of complaints received and arrests made by DNREC Fish and Wildlife Enforcement agents since the year 2000. Go to the data

Total numbers of fishing licenses and trout stamps issued, by year and by residence status. Go to the data

Total numbers of hunting licenses and waterfowl stamps issued, by year and by residence status. Go to the data

Results of annual fish population surveys of Delaware’s publicly-accessible freshwater ponds and lakes. Surveys can be affected by weather, access, and other factors and may not directly reflect fish populations. For interpretation and further research, please see reports from the Division of Fish and Wildlife. Go to the data

Counts of different species of waterfowl found in regular aerial surveys of Delaware waterfowl habitat areas. Go to the data

Survey data which denotes peak spawning occurrences by day and lunar period, proportion of spawning in May (coinciding with shorebird stopovers), average water temperature, index values for female and male crabs per square meter by beach and baywide, the annual sex ratio, and index of abundance per beach. Go to the data

Fish kills in tidal waters of the state of Delaware reported to the DNREC Division of Fish and Wildlife. Go to the data

Fish kills in non-tidal waters of the State of Delaware that have been reported to the DNREC Division of Fish and Wildlife. Go to the data

A data-based story, with links to open data, about Delaware’s artificial reef program. Go to the data

Outdoors and Recreation

A geospatial data set depicting the current Natural Areas as identified by the Delaware Department of Natural Resources and Environmental Control. Go to the data

A listing of properties protected and /or acquired under the Delaware Open Space Program. Go to the data

Data from annual cleanup events (2008 to present), including locations, numbers of participants, and data about what they found and removed from Delaware’s shores. Go to the data

Data on advisories issued for water quality problems in selected recreational water areas. Go to the data

A list of public programs offered in Delaware State Parks. Go to the data

Renewable and Efficient Energy

A listing of projects that received grants from the Energy Efficiency Investment Fund (EEIF) from Fiscal Year 2017 through the present.
Go to the data

A listing of weatherization services provided to Delaware residents through the Weatherization Assistance Program. Go to the data

A listing of grants for the purchase and installation of renewable energy sources such as photovoltaic (PV), geothermal, wind, and solar water heater systems. Go to the data

A listing of rebates paid to persons and companies for purchase or lease of alternative fuel vehicles. Go to the data

A list of rebates for electric vehicle charging equipment. The state provides such rebates for Level 2 electric vehicle charging equipment. Go to the data

Water and Wetlands

A listing of permits for water wells. The dataset includes information such as location (tax parcel), capacity, date and permit number. Specific location data, for some well types, is redacted per state law. Go to the data

A listing of Water Well Contractors and Pump Installer Contractors licensed by the DNREC Division of Water. The dataset includes information such as company name, license type, expiration date and contact information. Go to the data

A listing of permits for the installation of small (individual structure) and large (multi-structure) septic systems. This dataset includes information such as location (tax parcel), size and capacity, date, and permit number. Go to the data

A listing of professionals issued licenses for eight classes of professional activity related to wastewater treatment and disposal systems. Go to the data

Data collected since 2008 about tidal wetland condition in Delaware. Data is collected in the field using the Mid-Atlantic Tidal Wetland Rapid Assessment Method (MidTRAM). Go to the Data

Data from samples of Delaware non-tidal wetland areas collected in the field using the Delaware Rapid Assessment Procedure (DERAP). Go to the Data

A database of Notices of Intent (NOI) to apply for coverage under the National Pollutant Discharge Elimination System (NPDES) general permit for storm water discharges associated with construction activity. A record of planned construction activities that might cause storm water discharges. Go to the data

Clean Air

Estimates and projections of greenhouse gas (GHG) emissions by type and sector for Delaware, by year, for the period from 1990 to 2030. Go to the data

An annual inventory of emissions of selected pollutants reported to the state by large facilities in Delaware. Go to the data

Air quality data from monitoring stations throughout the state. Data available include ozone, carbon monoxide, sulfur dioxide, nitrogen dioxide, particulate matter, temperature, wind direction, humidity and wind speed. Go to the data

Waste and Hazardous Substances

A listing of underground storage tanks tracked and/or registered by the DNREC Tanks Compliance Program. Go to the data

A listing of aboveground storage tanks tracked and/or registered by the DNREC Tanks Compliance Program. Go to the data

A listing of active, inactive and scrapped boilers and pressure vessels found in the state of Delaware. Go to the data

A listing of sites in Delaware that have been certified as brownfields by the DNREC Brownfields Development Program. Go to the data

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