Depth to Groundwater Screener - USGS Water Levels, Phase I ESA

USGS Bedrock Geology & Lithology Risk Screener

malonestar/usgs-bedrock-geology-lithology-screener

Point-in-polygon screening against the USGS State Geologic Map Compilation. Returns geologic unit, formation names, age hierarchy and full lithology, plus 8 hazard flags: asbestos, karst, acid rock drainage, expansive soil, radon, loess, soft ground, landslide parent, and rippability.

Orphaned Oil & Gas Well Proximity Screener - Phase I ESA

malonestar/orphaned-well-proximity-screener

Screen any US coordinate against 117,672 documented orphaned oil and gas wells. Returns count in radius, nearest-well distance and bearing, status, well type, positional accuracy and a Phase I ESA risk signal. Covers 27 states; a site outside coverage is reported as such, never as clear.

NOAA Sea Level Rise Screener - Site Inundation Threshold

malonestar/noaa-slr-inundation-threshold-screener

Batch coordinates to the NOAA sea level rise increment at which each site first floods (0-10 ft above MHHW), with confidence class, inundated vs low-lying split, levee-exclusion flag and nearest high-tide-flooding thresholds. Out-of-coverage is reported explicitly, never as a false clear. MCP-ready.

USGS Karst Sinkhole Risk Screener — Geohazard by Coordinate

malonestar/karst-sinkhole-risk-screener

Karst & sinkhole-risk screener: batch point-in-polygon over the USGS national CONUS_Karst compilation (7 layers: carbonate, evaporite, sandstone karst + pseudokarst). Returns in_karst_terrain, karst type, near-surface vs buried, rock unit, and an editorial sinkhole-risk tier per coordinate.

CBRS Coastal Barrier Screener - CBRA Flood Insurance Bar

malonestar/cbrs-coastal-barrier-screener

Batch-screen coordinates against the USFWS Coastal Barrier Resources System. Returns System Unit vs Otherwise Protected Area, the flood-insurance prohibition date FEMA actually applies, the official 20 ft boundary buffer zone, distance to the CBRS boundary, and the official unit map link.

USDA SSURGO Soil Suitability, Hydric & Septic Screener API

malonestar/ssurgo-soil-suitability-screener

Screen any US coordinate against the USDA SSURGO soil survey: map unit, percent-weighted soil components, prime-farmland class, hydric rating, drainage, slope, and septic, foundation, road and solar-array limitations with the limiting reasons. Minority hydric components are reported, not hidden.

Historical Topographic Map Chronology - ASTM Phase I ESA 8.3.4

malonestar/usgs-historical-topo-records-review

Builds the full USGS historical topographic map chronology for any coordinate and runs an ASTM E1527-21 Sec. 8.3.4 historical records review: five-year interval coverage back to 1940, with data gaps explicitly identified. Every map year, scale, quadrangle and download URL. Keyless USGS data.

EPA Drinking Water Quality Screener - Violations, Lead & PFAS

malonestar/epa-drinking-water-quality-screener

Screen any US coordinate for the public water system serving it: SDWA health-based violations, Lead & Copper Rule 90th-percentile results and UCMR5 PFAS detections. Built for Phase I ESA and real-estate due diligence. Never reports a clear result from a source that did not answer.

NHD Surface Water & Section 404 Wetland Screener

malonestar/nhd-surface-water-404-screener

Screen any lat/lon against USGS NHDPlus HR surface water. 94 fields: exact distance to the nearest perennial, intermittent and ephemeral reach, waterbody type and purpose, mean annual flow, stream order, HUC-8/10/12, a jurisdictional-likelihood call with its reasoning, and a Section 404/WOTUS flag.

Phase I ESA Environmental Database Search — EPA by Address

malonestar/epa-contaminated-site-screener

Environmental database report for any US address: EPA Superfund/NPL, RCRA CORRACTS/TSD/generators, TRI, UST, LUST, Brownfields, NPDES, AIR, TSCA, RMP — scored against ASTM E1527-21 search distances, plus on-site Superfund and institutional-control (AUL) boundary checks. No API key.

USFWS Wetlands Proximity Screener - Section 404 Site Risk API

malonestar/fws-wetlands-proximity-screener

Wetland due-diligence API for site selection: per lat/lon site, wetland presence within radius, Cowardin classification codes/systems, wetland types, total acreage nearby and a Section 404 dredge-and-fill screening flag. USFWS National Wetlands Inventory open data.