{"status":"ok","engine":"deepmap_water_main_v1","risk_drivers":["barometric_anomaly","drought_wet_transition","freeze_thaw_cycling","groundwater_trend","pipe_age","pipe_material","soil_saturation_stress","subsidence_proxy"],"driver_count":8,"supported_pipe_materials":["cast_iron","concrete","ductile_iron","hdpe","pvc","steel","unknown"],"data_sources":["Open-Meteo Forecast + Historical (30d)","USGS NWIS Groundwater (where available)","DeepMap Vs30 Site Classification"],"physics_basis":"Drought-to-wet soil transition is the #1 cause of water main breaks. DeepMap fuses soil moisture cycling, freeze-thaw, barometric anomalies, and groundwater trends with pipe metadata to produce actionable break risk scores."}