Know your data sources.

Indiana DNR oil and gas wells + natural-gas pipelines plus DNR-managed lands (nature preserves, recreation sites, forestry tracts) via the gisdata.in.gov state Hub. - searchWells ⭐ ~78.3K wells with county/lease/permit/status — no operator on this layer - searchPipelines ⭐ ~215 interstate + intrastate gas pipelines with operator names - searchManagedLands ⭐ typed: nature-preserve | recreation-site | forestry-tract - getWellByIgsId, getServiceInfo §0 spec drift: brief listed portal.igs.indiana.edu as primary; rich registry actually lives on gisdata.in.gov state Hub. maps.indiana.edu root is HTML 404. operator_name on OilAndGasWells is ALWAYS NULL upstream. CRS varies (102100/4269/26916); outSR=4326.

Indiana IDEM Superfund, cleanup, voluntary remediation, hazardous waste, LUST, brownfields, solid-waste via gisdata.in.gov state Hub. - searchSuperfundSites ⭐ ~85 federal NPL & SF list (program=SF) - searchCleanupSites ⭐ ~1.5K State Cleanup Sites (program=SC) - searchVoluntaryRemediation ⭐ ~653 VRP sites (program=VR) - searchBrownfields (~2.3K w/ county), searchHazardousWasteSites, searchLustSites, searchSolidWasteFacilities §0: maps.indiana.edu (build-plan brief) is unreachable (TCP timeout). Canonical data on gisdata.in.gov Hosted/IDEM_Land_Sites — IDEM/ folder requires auth. Layers 1500/1600/1800/1900/2300 share schema and have NO county column (municipality only); 1100 + 1000 have county. agency_interest_id is Double.