{
  "site_name": "Newby Island SLF Phases I, II, & III (CA)",
  "landfill_id": 225,
  "lat": 37.45897,
  "lon": -121.94108,
  "source": "mass_run",
  "measurement": {
    "hard_fail": true,
    "native_srs_label": "UTM10 WGS84 EPSG:32610",
    "epoch_a_date_nominal": "2010",
    "epoch_b_date_nominal": "2021",
    "epoch_dates_independently_verified": true,
    "usable_coverage_pct": 98.6,
    "n_stable_control_cells": 77038,
    "evidence_refs": [
      "epoch_a: kind=ept label='ARRA-CA_SanFranCoast_2010' n_ground_points=1402782 runtime_s=10.9",
      "epoch_b: kind=ept label='CA_AlamedaCo_2_2021' n_ground_points=10021925 runtime_s=90.0"
    ],
    "meta": {
      "epoch_a": {
        "runtime_s": 10.859766673999957,
        "n_points": 1402782,
        "text_bytes": 41631243
      },
      "epoch_b": {
        "runtime_s": 89.9736515730001,
        "n_points": 10021925,
        "text_bytes": 298678911
      },
      "grid_nx": 500,
      "grid_ny": 500
    },
    "stable_control_offset_m": 1.7169,
    "stable_control_sigma_m": 5.0013,
    "hard_fail_reason": "datum/alineacion: stable_control_sigma_m=5.0013 (>1.0) o |stable_control_offset_m|=1.7169 (>2.0)",
    "landfill_id": 225,
    "name": "Newby Island SLF Phases I, II, & III",
    "state": "CA",
    "lat": 37.45897,
    "lon": -121.94108,
    "site_note": "poligono sintetico (buffer 200x200m sobre coordenada LMOP real), NO el parcel legal exacto",
    "datum_note": "UTM WGS84, no NAD83(2011) especifico por estado - ver docstring de lmop_mass_runner.py"
  }
}