New Mexico Office of the State Engineer water-rights + groundwater data. AGOL Feature Services (owner: osegis), no auth. - searchWaterRights ⭐ — ~277,608 PODs filtered by county/owner/use/status/basin - getDeclaredGroundwaterBasin ⭐ — point-in-polygon basin lookup (39 polys, 161 with sub-basins) - searchPointsOfDiversion (alias), searchIrrigationDistricts (74 polys) - getServiceInfo quirks: county is 2-letter code (LE=Lea, ED=Eddy) — handler accepts both code + full name. POD geometry stored as UTM Zone 13N — outSR=4326 forces WGS84. use_ has 59 codes (OIL/OFM/SRO/MIN/INJ for O&G); status has 20 (PMT/LIC/EXP/CAN); pod_status separate (ACT/INC/PEN/PLG). 2 basin layers found — default 39-poly canonical, opt-in 161-poly with sub-basins.
5 methodsFreshness not declaredOklahoma Water Resources Board aquifers + floodplains + biological data. Native ArcGIS REST + AGOL Feature Services (owner: OWRBOnline), no auth. - searchAquifers ⭐ — 71 aquifer polys across 4 layers (Major/Minor × Bedrock/Alluvial) - getFloodplain ⭐ — point-in-polygon FEMA SFHA lookup (~23,539 polys) - searchStreamFishCounts (~10,749 obs), getServiceInfo quirks: Aquifers MapServer (csa.ou.edu) uses LOWERCASE field names (name/class/type) vs uppercase on AGOL. Floodplain is OWRB-published from FEMA NFHL — FLD_ZONE in X/AE/A/AO/AH; no name/county column. Stream Fish Counts has no county column — bbox/near is the geo filter; FISH_GROUP is taxonomic family.
4 methodsFreshness not declaredCalifornia State Water Resources Control Board + DWR — drinking water systems + Bulletin 118 basins + stream gages. - searchDrinkingWaterSystems ⭐ ~5K SABL polygons. county UPPERCASE - searchGroundwaterBasins ⭐ ~515 DWR Bulletin 118 basin/subbasin polygons. NO county - searchStreamGages ~2.6K USGS+DWR+local. Filter hasFlow/hasStage/gageStatus upstream quirks: Multi-host — gispublic.waterboards.ca.gov (SWRCB native) for Drinking Water + StreamGages; utility.arcgis.com (DWR utility map) for Bulletin 118. SWRCB Drinking Water OWNER_TYPE_CODE has trailing space ('L ', 'P ' etc) — handler matches both forms. Bulletin 118 is published by DWR, exposed here for one-stop water context.
4 methodsFreshness not declaredVirginia DEQ solid-waste permits, alternate water supplies, biosolids, federal facilities, air sites + emissions, and Chesapeake Bay zones via the EDMA mapping service. 10 curated layers from VA's 127-layer ArcGIS deployment. - searchSolidWastePermits ⭐ 1.4K (881 Revoked, 491 Permitted) - searchAirSites ⭐ 3.7K active air sites with classification - searchAirEmissions ⭐ 17.8K TPY rows (PM 10/VOC/NOX/SO2) - searchBiosolidsAreas, searchAltWaterSupplies, searchChesapeakeBayZones §0: schema inconsistent — Solid Waste uses LOCALITY/FACILITY_COUNTY; Alt Water no county; Air Sites uses FAC_L_CITY. Layer 292 is a Table. CRS 3857; outSR=4326.
7 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: water