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Keyword(s): Hydrology
Division of Water Constituent Concern Tracker
The DNREC Division of Water Constituent Concern Tracker is a system used to receive, review, and respond to questions, concerns, and reports from the public. Plausible concerns include those related to surface and groundwater water quality, stormwater, …
Delaware Resilient and Sustainable Communities League Upcoming Events
Member organizations of the Delaware Resilient and Sustainable Communities League (RASCL) host events including webinars, symposiums, and conferences that promote data sharing and networking to enhance community resilience and sustainability. To view R …
Delaware Wildlife Action Plan Habitat Explorer
DNREC’s Division of Fish and Wildlife developed the Wildlife Action Plan Habitat Explorer as a mapping tool to inform the Wildlife Action Plan. The Habitat Explorer provides nearly 40 GIS layers from which to learn about the Wildlife Action Plan’s appr …
Delaware Wetland Program Plan
In 2026, DNREC’s Wetland Monitoring and Assessment Program released the 2026-2030 Wetland Program Plan. The Plan is an updated report to previous iterations published in 2021, 2015, 2011, and 2008. It outlines 41 action items across seven goals to prio …
Delaware Resilient and Sustainable Communities League Committees
Members of the Delaware Resilient and Sustainable Communities League (RASCL) fulfill RASCL’s mission to promote resilience and sustainability in communities throughout the First State by serving on four committees: Community Planning Assistance, Outrea …
Delaware Geological Survey Publication List
This page lists all publications released by DGS. Report topics include but are not limited to saltwater intrusion, aquifer and groundwater withdrawals, and geologic maps of various geographic regions throughout Delaware.
Delaware 2025 Climate Change Projections Report
In October 2025, the University of Delaware Center for Environmental Monitoring and Analysis (CEMA) published the Delaware 2025 Climate Change Projections Report. This report presents a comprehensive assessment of sea level rise, temperature, and preci …
Watershed Resources Registry- Delaware
The Watershed Resources Registry is an interactive online mapping tool that prioritizes areas for preservation and restoration of wetlands, riparian zones, terrestrial areas, and storm water management control across an entire state. The tool is helpfu …
Delaware First Map: Geospatial Data
FirstMap is a comprehensive self-service Enterprise Geographic Information System that consists of an enterprise geodatabase for data storage, an infrastructure to support geospatial and image services, and is tied into the State’s ArcGIS Online portal …
Sediment and Stormwater Regulations Designer Training
The Sediment and Stormwater Program has developed a two-day Designer Training targeted at individuals who will be preparing plans and engineering computations under the Delaware Sediment & Stormwater Regulations. Visit the website for a list of upc …