Primary-source library
Each source includes its owner, coverage, intended use, important limitation and last-checked date.
Federal Emergency Management Agency · United States
Official flood-map search and flood-hazard products.
Important: Flood maps do not replace insurance, survey, elevation, permitting or site-specific professional review.
U.S. Fish & Wildlife Service · United States
Mapped wetland and deepwater screening data.
Important: Mapped data does not establish regulatory jurisdiction or a parcel-specific wetland boundary.
USDA Natural Resources Conservation Service · United States
Official soil maps, properties and interpretations for an area of interest.
Important: Soil mapping is a planning resource and does not replace a site evaluation, perc test or engineering investigation.
U.S. Environmental Protection Agency · United States
Screen nearby listed Superfund sites and open official records.
Important: Distance from a listed site does not determine whether a parcel is safe or contaminated.
Texas Water Development Board · Texas
Instructions and databases for locating water-well reports.
Important: Records can be split by drilling date and may be incomplete; a record does not guarantee current yield or water quality.
Florida Department of Environmental Protection · Florida
Official context for Florida wetland evaluation, delineation and formal determinations.
Important: Map screening is not a formal or jurisdictional delineation and does not approve development.