Louisiana DEQ water-quality datasets. AGOL Feature Services, no auth. - search303dImpairedWaters ⭐ — IR2020 subsegments where a designated use is Not Supported (303(d)) - searchSubsegmentsByUse ⭐ — same layer, any use-rating - searchWatershedBasins (12), searchAmbientMonitoringSites (~761 LEAU active), searchFishAdvisories (62) - getServiceInfo quirks: subsegments + flowlines have NO parish — use BASIN (12 names: ATCHAFALAYA / CALCASIEU / ...) or bbox. Use codes: PCR/SCR/FWP/DWS/ONR/OYS/AGR/LAL. Status: Fully Supported / Not Supported / Insufficient Data / Not a Use / No Data Collected. Fish Advisories' Parishes is free-text ("Calcasieu and Cameron"); LIKE-matched. Air emissions + hazardous waste are NOT published as LDEQ Feature Services.
6 methodsFreshness not declared
Knowledge
Know your data sources.
The public data contract for every source PatchOps exposes over MCP: provenance, freshness, coverage, caveats, and per-method schemas. Also available as JSON at /api/knowledge/data-sources.
tag: ambient-monitoring