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Payload

{
  "error": "",
  "has_model": false,
  "labels": {
    "area": "Area",
    "as_of": "as of",
    "depth": "Max depth",
    "elevation": "Elevation",
    "level": "Water level",
    "measurement": "Measurement",
    "measurements": "Measurements",
    "model": "Model",
    "satellite": "Satellite",
    "surface": "Surface temperature",
    "updated": "Updated"
  },
  "lake_key": "sempach",
  "lake_name": "Lake Sempach",
  "level": {
    "age_min": 27,
    "label": "Sempachersee - Sempach",
    "source": "BAFU Hydrodaten",
    "unit": "m ü.M.",
    "value": 503.59
  },
  "measurements": [],
  "points": [],
  "stale": false,
  "stats": {
    "area_km2": 14.5,
    "elevation_m": 504,
    "max_depth_m": 87
  },
  "surface_temp_c": 19,
  "surface_temp_source": "satellite",
  "svg": {
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    "cx": 360,
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  "updated_age_min": 27,
  "updated_at": "2026-06-19 13:30"
}