MEASURED — DECISION_USEFUL_CHANGE_DETECTED

Lee County Landfill (IL)

Volume change between 2008 and 2019, measured from two independent real LiDAR epochs, calibrated against a stable-terrain control ring.

FieldValue
VerdictCHANGE_CONFIRMED
Confidence0.992
Epochs2008 → 2019
Volume change19,718.5 ± 162.3 m³
Coverage99.2%
Stable-control sigma0.8791 m
ClassificationDECISION_USEFUL_CHANGE_DETECTED
Recommended next actionNone - result is decisive.

Machine-readable measurement (full evidence, same numbers as this page):

lmop-2324.json

Method: measure_physical_change() — same unmodified function used across every site in this program, real LiDAR/3DEP epochs via the public hobuinc/usgs-lidar EPT index, calibrated against a stable-terrain control ring. Synthetic 200x200m buffer on the LMOP-declared coordinate — never the legal parcel boundary. Full method: /products/physical-change/.