Primary-source library
Each source includes its owner, coverage, intended use, important limitation and last-checked date.
U.S. Fish & Wildlife Service · United States
Decode National Wetlands Inventory Cowardin map codes and understand system, class, subclass and water-regime components.
Important: A classification code describes mapped habitat; it does not establish a regulatory wetland boundary, jurisdiction or buildability conclusion.
U.S. Fish & Wildlife Service · United States
Query National Wetlands Inventory polygons and wetland codes for web-based screening applications.
Important: NWI is a screening dataset updated with the Wetlands Mapper and does not establish a regulatory boundary or jurisdiction.
U.S. Census Bureau · United States
Convert a complete street address to an interpolated coordinate and Census geography for public-data screening.
Important: A geocoded address point is not a parcel boundary, survey monument or proof that a structure exists at the returned coordinate.
U.S. Geological Survey · United States
Return a terrain elevation estimate from The National Map for a latitude/longitude point.
Important: The value is interpolated from elevation data and is not a surveyed elevation, benchmark or Elevation Certificate.
USDA Natural Resources Conservation Service · United States
Access current soil survey spatial and tabular data through REST, WFS and WMS services.
Important: Mapped soil interpretations support planning; onsite evaluation can still be required for septic, engineering and construction decisions.
Florida Department of Environmental Protection · Florida
Screen drinking-water source and wastewater-treatment method for developed properties using statewide compiled data.
Important: DEP states that the inventory has data gaps and incomplete provider submissions; absence or classification must be confirmed locally.
Florida Department of Environmental Protection · Florida
Open recent onsite-sewage permit activity, Florida Water Management Inventory maps and county data downloads.
Important: Statewide datasets do not replace the local permit file, site evaluation or system approval for a proposed parcel.
Florida Department of Environmental Protection · Florida
Official rules and program information for water-well construction, repair and abandonment in Florida.
Important: Permitting is implemented through the appropriate water management district or delegated authority; a nearby well does not guarantee yield or quality.
Florida Department of Environmental Protection · Florida
Identify Florida's five water management districts and their regional responsibilities and websites.
Important: County boundaries can be split between districts and specific permitting responsibilities can be delegated.
Florida Department of Revenue · Florida
Find each county property appraiser, tax collector and value adjustment board official website.
Important: Property appraiser/GIS parcel lines and assessed values are administrative records, not a boundary survey or title opinion.
Florida Department of Environmental Protection · Florida
Open DEP Map Direct, the geospatial open-data portal and other official DEP mapping applications for program records and environmental context.
Important: DEP GIS layers and permit-location records are screening and record-retrieval tools; they do not by themselves establish a wetland boundary, jurisdiction, permit requirement or parcel buildability.
Florida Department of Environmental Protection · Florida
Identify DEP and water-management-district Environmental Resource Permit responsibilities and portals.
Important: The controlling agency and permit path depend on project type, location and operating agreements.
Florida Department of Environmental Protection · Florida
Official process for a legally binding determination of the landward extent of wetlands and other surface waters while the determination is valid.
Important: A formal determination is a separate agency process; a web map, desktop screen or consultant sketch is not the determination itself.
USA.gov · United States
Find official state, county, parish, city and local-government websites before searching parcel, assessor, zoning or planning records.
Important: The directory identifies governments; the relevant parcel map, zoning map and adopted records remain local.
Federal Emergency Management Agency · United States
View, download and work with official effective flood-hazard data and map products.
Important: Flood-hazard layers do not replace a survey, elevation certificate, local floodplain review, insurance analysis or map-change research.
Consumer Financial Protection Bureau · United States
Understand loan terms, projected payments and closing-cost disclosures when a covered mortgage transaction is involved.
Important: Land-only, seller-financed, agricultural and commercial transactions may use different disclosures and underwriting structures.
USDA Farm Service Agency · United States
Official starting point for eligible farm ownership financing programs and purposes.
Important: Eligibility, security, underwriting, funding and program terms require direct confirmation with the agency or lender.
U.S. Environmental Protection Agency · United States
Public guidance on septic-system function, care and environmental considerations.
Important: System siting, sizing, design, permits and approval are controlled by applicable state and local programs.
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.
U.S. Environmental Protection Agency · United States
Official federal context for environmental due diligence and recognized Phase I assessment practices.
Important: A database screen is not a Phase I ESA, and liability protections require professional and legal guidance.
Federal Communications Commission · United States
Screen reported fixed and mobile broadband availability at a location.
Important: Reported coverage does not guarantee serviceability, construction price, speed or installation timing for a parcel.
U.S. Department of Housing and Urban Development · United States
Federal manufactured-home construction, installation and homeowner resources.
Important: Placement, zoning, foundations, delivery and permits remain subject to applicable state and local requirements.
Bureau of Land Management · United States
Official context for private surface ownership with separately owned federal mineral interests.
Important: Actual mineral ownership, leases and surface rights require parcel-specific title and legal review.
U.S. Forest Service · United States
Community-scale wildfire-risk information for planning and comparison.
Important: It does not replace parcel access, fuels, insurance, fire-code or site-specific professional review.
U.S. Geological Survey · United States
Public groundwater, surface-water and monitoring information.
Important: Public monitoring data does not guarantee a private well’s depth, yield, quality or legal availability.
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.
