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.

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.

Counts of waterfowl found in regular aerial surveys of Delaware waterfowl habitat areas.

A listing of completed grant awards to commercial, industrial, non-profit, and local government entities for the purchase and installment of eligible energy efficiency measures.

Survey data from 1999-2018 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.

Provides 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.

Data on advisories issued for water quality problems in selected recreational water areas.

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.

Listing of public programs offered in Delaware State Parks.

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