Mississippi Department of Environmental Quality MUSTER (UST + CERCLA) and 2024 Impaired Waters via opcgis.deq.state.ms.us. 5 curated layers covering petroleum tank sites, brownfield/CERCLA sites, 303(d) impaired waters, and completed TMDLs. - searchUSTSites ⭐ 11.9K active+inactive UST facilities - searchCERCLASites ⭐ 2.28K state CERCLA / brownfields with NPL flags - searchImpairedWaters ⭐ 233 streams + 4 polygons on the 2024 303(d) list - searchTmdlCompleted, getServiceInfo §0 caught: MUSTER does NOT support offset paging — handler iterates by OBJECTID. 5 scale-tier duplicate UST layers — only layer 10 exposed. BASIN column mixes UPPER and Title Case. POLLUTANT has numeric-prefix duplicates. Host has been historically flaky — handler retries once on 5xx/HTML.
5 methodsFreshness not declaredMississippi Oil & Gas Board well-surface locations, onshore and offshore pipelines, and offshore platforms via FracTracker-curated AGOL services. - searchWells ⭐ ~8.1K canonical wells with API/operator/status/county/field/township - searchPipelines ⭐ ~3.5K (712+727 onshore lean + 2K offshore BSEE-style) - searchOffshorePlatforms ⭐ ~617 platforms with COMPLEX_ID, INSTALL_DA, REMOVAL_DA - getWellByApi, getServiceInfo §0 spec drift: build-plan endpoint (Mississippi_NEW2) has NO structured wells layer — its "Merge 7" point layer (6,557 KML-imported records) only exposes PopupInfo HTML strings. Canonical structured wells live at Mississippi_Update_4821/0. Native CRS already EPSG:4326. CountyName UPPERCASE.
5 methodsFreshness not declaredMississippi state lands — state parks, Wildlife Management Areas, and Forestry Commission Section 16 BOE forestry plans. - searchStateParks ⭐ 39 state park polygons (Buccaneer/Tishomingo/Percy Quin/Natchez/Roosevelt) - searchWildlifeManagementAreas ⭐ 64 MDWFP-administered WMA polygons (Pascagoula/Mahannah/Sandy Creek) - searchForestryPlans ⭐ ~1,067 Section 16 school-trust BOE forestry plans (PrimGoal: Timber/Wildlife/Fire) §0: MS has NO single state lands portal — the historic MARIS public-data hub is currently offline. The MDWFP server has an incomplete TLS chain so its lakes + boat ramps are excluded; polygons are sourced from a curated parks+WMAs aggregator + the Forestry Commission. Client PII on BOE plans (phone/email/zipcode) is NOT exposed.
4 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: mississippi